contract_name
stringlengths 1
61
| file_path
stringlengths 5
50.4k
| contract_address
stringlengths 42
42
| language
stringclasses 1
value | class_name
stringlengths 1
61
| class_code
stringlengths 4
330k
| class_documentation
stringlengths 0
29.1k
| class_documentation_type
stringclasses 6
values | func_name
stringlengths 0
62
| func_code
stringlengths 1
303k
| func_documentation
stringlengths 2
14.9k
| func_documentation_type
stringclasses 4
values | compiler_version
stringlengths 15
42
| license_type
stringclasses 14
values | swarm_source
stringlengths 0
71
| meta
dict | __index_level_0__
int64 0
60.4k
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
Strings
|
library Strings {
bytes16 private constant alphabet = "0123456789abcdef";
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = alphabet[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
}
|
/**
* @dev String operations.
*/
|
NatSpecMultiLine
|
toHexString
|
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = alphabet[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
|
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
1481,
1933
]
}
| 54,561 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC165
|
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
|
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
|
NatSpecMultiLine
|
supportsInterface
|
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
|
/**
* @dev See {IERC165-supportsInterface}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
103,
265
]
}
| 54,562 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
totalSupply
|
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
|
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
1928,
2033
]
}
| 54,563 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
tokenByIndex
|
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
|
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
2105,
2338
]
}
| 54,564 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
tokenOfOwnerByIndex
|
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
|
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
2636,
3505
]
}
| 54,565 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
supportsInterface
|
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
|
/**
* @dev See {IERC165-supportsInterface}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
3572,
3999
]
}
| 54,566 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
balanceOf
|
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
|
/**
* @dev See {IERC721-balanceOf}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
4058,
4321
]
}
| 54,567 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
ownerOf
|
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
|
/**
* @dev See {IERC721-ownerOf}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
5342,
5471
]
}
| 54,568 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
name
|
function name() public view virtual override returns (string memory) {
return _name;
}
|
/**
* @dev See {IERC721Metadata-name}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
5533,
5638
]
}
| 54,569 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
symbol
|
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
|
/**
* @dev See {IERC721Metadata-symbol}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
5702,
5811
]
}
| 54,570 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
tokenURI
|
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
|
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
5877,
6330
]
}
| 54,571 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
_baseURI
|
function _baseURI() internal view virtual returns (string memory) {
return "";
}
|
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
6573,
6672
]
}
| 54,572 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
approve
|
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
|
/**
* @dev See {IERC721-approve}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
6729,
7147
]
}
| 54,573 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
getApproved
|
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
|
/**
* @dev See {IERC721-getApproved}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
7208,
7505
]
}
| 54,574 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
setApprovalForAll
|
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
|
/**
* @dev See {IERC721-setApprovalForAll}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
7572,
7888
]
}
| 54,575 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
isApprovedForAll
|
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
|
/**
* @dev See {IERC721-isApprovedForAll}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
7954,
8173
]
}
| 54,576 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
transferFrom
|
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
|
/**
* @dev See {IERC721-transferFrom}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
8235,
8402
]
}
| 54,577 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
safeTransferFrom
|
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
|
/**
* @dev See {IERC721-safeTransferFrom}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
8468,
8650
]
}
| 54,578 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
safeTransferFrom
|
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
|
/**
* @dev See {IERC721-safeTransferFrom}.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
8716,
9076
]
}
| 54,579 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
_exists
|
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
|
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
9326,
9442
]
}
| 54,580 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
_safeMint
|
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
|
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
9912,
11317
]
}
| 54,581 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
_transfer
|
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
|
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
11566,
13280
]
}
| 54,582 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
_approve
|
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
|
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
13393,
13594
]
}
| 54,583 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
_setOwnersExplicit
|
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
|
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
13753,
14708
]
}
| 54,584 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
_checkOnERC721Received
|
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
|
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
15268,
16258
]
}
| 54,585 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
_beforeTokenTransfers
|
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
|
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
16741,
16905
]
}
| 54,586 |
ApeRaffle
|
ApeRaffle.sol
|
0x61028f622cb6618cac3deb9ef0f0d5b9c6369c72
|
Solidity
|
ERC721A
|
contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 internal immutable collectionSize;
uint256 internal immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
* `collectionSize_` refers to how many tokens are in the collection.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_,
uint256 collectionSize_
) {
require(
collectionSize_ > 0,
"ERC721A: collection must have a nonzero supply"
);
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
collectionSize = collectionSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index)
public
view
override
returns (uint256)
{
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(collectionSize). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(
owner != address(0),
"ERC721A: balance query for the zero address"
);
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId)
public
view
override
returns (address)
{
require(
_exists(tokenId),
"ERC721A: approved query for nonexistent token"
);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved)
public
override
{
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - there must be `quantity` tokens remaining unminted in the total collection.
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > collectionSize - 1) {
endIndex = collectionSize - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(
_msgSender(),
from,
tokenId,
_data
)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert(
"ERC721A: transfer to non ERC721Receiver implementer"
);
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
}
|
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata and Enumerable extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at 0 (e.g. 0, 1, 2, 3..).
*
* Assumes the number of issuable tokens (collection size) is capped and fits in a uint128.
*
* Does not support burning tokens to address(0).
*/
|
NatSpecMultiLine
|
_afterTokenTransfers
|
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
|
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
|
NatSpecMultiLine
|
v0.8.0+commit.c7dfd78e
|
None
|
ipfs://a3ea1ae6ff35caf3ce3d02e358f13d433a93bb9b10178d4061316be7d76765cb
|
{
"func_code_index": [
17312,
17475
]
}
| 54,587 |
BountyAuction
|
contracts/libraries/PostSessionLibrary.sol
|
0x5165a6cf99f58aa20032abdf5aaf3f8cd6978617
|
Solidity
|
PostSessionLibrary
|
library PostSessionLibrary {
using sqrtLibrary for *;
/////////////////////
/// Base ///
/////////////////////
function calculateBase(uint finalAppraisalValue, uint userAppraisalValue) pure internal returns(uint){
uint base = 1;
uint userVal = 100 * userAppraisalValue;
for(uint i=5; i >= 1; i--) {
uint lowerOver = (100 + (i - 1)) * finalAppraisalValue;
uint upperOver = (100 + i) * finalAppraisalValue;
uint lowerUnder = (100 - i) * finalAppraisalValue;
uint upperUnder = (100 - i + 1) * finalAppraisalValue;
if (lowerOver < userVal && userVal <= upperOver) {
return base;
}
if (lowerUnder < userVal && userVal <= upperUnder) {
return base;
}
base += 1;
}
if(userVal == 100*finalAppraisalValue) {
return 6;
}
return 0;
}
/////////////////////
/// Harvest ///
/////////////////////
// function harvestUserOver(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
// return _stake * (_userAppraisal*100 - 105*_finalAppraisal)/(_finalAppraisal*100);
// }
// function harvestUserUnder(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
// return _stake * (95*_finalAppraisal - 100*_userAppraisal)/(_finalAppraisal*100);
// }
function harvest(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
if(_userAppraisal*100 > 105*_finalAppraisal) {
return _stake * (_userAppraisal*100 - 105*_finalAppraisal)/(_finalAppraisal*100);
}
else if(_userAppraisal*100 < 95*_finalAppraisal) {
return _stake * (95*_finalAppraisal - 100*_userAppraisal)/(_finalAppraisal*100);
}
else {
return 0;
}
}
/////////////////////
/// Commission ///
/////////////////////
function setCommission(uint _treasurySize) pure internal returns(uint) {
if (_treasurySize < 25000 ether) {
return 500;
}
else if(_treasurySize >= 25000 ether && _treasurySize < 50000 ether) {
return 400;
}
else if(_treasurySize >= 50000 ether && _treasurySize < 100000 ether) {
return 300;
}
else if(_treasurySize >= 100000 ether && _treasurySize < 2000000 ether) {
return 200;
}
else if(_treasurySize >= 200000 ether && _treasurySize < 400000 ether) {
return 100;
}
else if(_treasurySize >= 400000 ether && _treasurySize < 700000 ether) {
return 50;
}
else {
return 25;
}
}
}
|
calculateBase
|
function calculateBase(uint finalAppraisalValue, uint userAppraisalValue) pure internal returns(uint){
uint base = 1;
uint userVal = 100 * userAppraisalValue;
for(uint i=5; i >= 1; i--) {
uint lowerOver = (100 + (i - 1)) * finalAppraisalValue;
uint upperOver = (100 + i) * finalAppraisalValue;
uint lowerUnder = (100 - i) * finalAppraisalValue;
uint upperUnder = (100 - i + 1) * finalAppraisalValue;
if (lowerOver < userVal && userVal <= upperOver) {
return base;
}
if (lowerUnder < userVal && userVal <= upperUnder) {
return base;
}
base += 1;
}
if(userVal == 100*finalAppraisalValue) {
return 6;
}
return 0;
}
|
/////////////////////
/// Base ///
/////////////////////
|
NatSpecSingleLine
|
v0.8.0+commit.c7dfd78e
|
{
"func_code_index": [
139,
967
]
}
| 54,588 |
||||
BountyAuction
|
contracts/libraries/PostSessionLibrary.sol
|
0x5165a6cf99f58aa20032abdf5aaf3f8cd6978617
|
Solidity
|
PostSessionLibrary
|
library PostSessionLibrary {
using sqrtLibrary for *;
/////////////////////
/// Base ///
/////////////////////
function calculateBase(uint finalAppraisalValue, uint userAppraisalValue) pure internal returns(uint){
uint base = 1;
uint userVal = 100 * userAppraisalValue;
for(uint i=5; i >= 1; i--) {
uint lowerOver = (100 + (i - 1)) * finalAppraisalValue;
uint upperOver = (100 + i) * finalAppraisalValue;
uint lowerUnder = (100 - i) * finalAppraisalValue;
uint upperUnder = (100 - i + 1) * finalAppraisalValue;
if (lowerOver < userVal && userVal <= upperOver) {
return base;
}
if (lowerUnder < userVal && userVal <= upperUnder) {
return base;
}
base += 1;
}
if(userVal == 100*finalAppraisalValue) {
return 6;
}
return 0;
}
/////////////////////
/// Harvest ///
/////////////////////
// function harvestUserOver(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
// return _stake * (_userAppraisal*100 - 105*_finalAppraisal)/(_finalAppraisal*100);
// }
// function harvestUserUnder(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
// return _stake * (95*_finalAppraisal - 100*_userAppraisal)/(_finalAppraisal*100);
// }
function harvest(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
if(_userAppraisal*100 > 105*_finalAppraisal) {
return _stake * (_userAppraisal*100 - 105*_finalAppraisal)/(_finalAppraisal*100);
}
else if(_userAppraisal*100 < 95*_finalAppraisal) {
return _stake * (95*_finalAppraisal - 100*_userAppraisal)/(_finalAppraisal*100);
}
else {
return 0;
}
}
/////////////////////
/// Commission ///
/////////////////////
function setCommission(uint _treasurySize) pure internal returns(uint) {
if (_treasurySize < 25000 ether) {
return 500;
}
else if(_treasurySize >= 25000 ether && _treasurySize < 50000 ether) {
return 400;
}
else if(_treasurySize >= 50000 ether && _treasurySize < 100000 ether) {
return 300;
}
else if(_treasurySize >= 100000 ether && _treasurySize < 2000000 ether) {
return 200;
}
else if(_treasurySize >= 200000 ether && _treasurySize < 400000 ether) {
return 100;
}
else if(_treasurySize >= 400000 ether && _treasurySize < 700000 ether) {
return 50;
}
else {
return 25;
}
}
}
|
harvest
|
function harvest(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
if(_userAppraisal*100 > 105*_finalAppraisal) {
return _stake * (_userAppraisal*100 - 105*_finalAppraisal)/(_finalAppraisal*100);
}
else if(_userAppraisal*100 < 95*_finalAppraisal) {
return _stake * (95*_finalAppraisal - 100*_userAppraisal)/(_finalAppraisal*100);
}
else {
return 0;
}
}
|
// function harvestUserOver(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
// return _stake * (_userAppraisal*100 - 105*_finalAppraisal)/(_finalAppraisal*100);
// }
// function harvestUserUnder(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
// return _stake * (95*_finalAppraisal - 100*_userAppraisal)/(_finalAppraisal*100);
// }
|
LineComment
|
v0.8.0+commit.c7dfd78e
|
{
"func_code_index": [
1494,
1974
]
}
| 54,589 |
||||
BountyAuction
|
contracts/libraries/PostSessionLibrary.sol
|
0x5165a6cf99f58aa20032abdf5aaf3f8cd6978617
|
Solidity
|
PostSessionLibrary
|
library PostSessionLibrary {
using sqrtLibrary for *;
/////////////////////
/// Base ///
/////////////////////
function calculateBase(uint finalAppraisalValue, uint userAppraisalValue) pure internal returns(uint){
uint base = 1;
uint userVal = 100 * userAppraisalValue;
for(uint i=5; i >= 1; i--) {
uint lowerOver = (100 + (i - 1)) * finalAppraisalValue;
uint upperOver = (100 + i) * finalAppraisalValue;
uint lowerUnder = (100 - i) * finalAppraisalValue;
uint upperUnder = (100 - i + 1) * finalAppraisalValue;
if (lowerOver < userVal && userVal <= upperOver) {
return base;
}
if (lowerUnder < userVal && userVal <= upperUnder) {
return base;
}
base += 1;
}
if(userVal == 100*finalAppraisalValue) {
return 6;
}
return 0;
}
/////////////////////
/// Harvest ///
/////////////////////
// function harvestUserOver(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
// return _stake * (_userAppraisal*100 - 105*_finalAppraisal)/(_finalAppraisal*100);
// }
// function harvestUserUnder(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
// return _stake * (95*_finalAppraisal - 100*_userAppraisal)/(_finalAppraisal*100);
// }
function harvest(uint _stake, uint _userAppraisal, uint _finalAppraisal) pure internal returns(uint) {
if(_userAppraisal*100 > 105*_finalAppraisal) {
return _stake * (_userAppraisal*100 - 105*_finalAppraisal)/(_finalAppraisal*100);
}
else if(_userAppraisal*100 < 95*_finalAppraisal) {
return _stake * (95*_finalAppraisal - 100*_userAppraisal)/(_finalAppraisal*100);
}
else {
return 0;
}
}
/////////////////////
/// Commission ///
/////////////////////
function setCommission(uint _treasurySize) pure internal returns(uint) {
if (_treasurySize < 25000 ether) {
return 500;
}
else if(_treasurySize >= 25000 ether && _treasurySize < 50000 ether) {
return 400;
}
else if(_treasurySize >= 50000 ether && _treasurySize < 100000 ether) {
return 300;
}
else if(_treasurySize >= 100000 ether && _treasurySize < 2000000 ether) {
return 200;
}
else if(_treasurySize >= 200000 ether && _treasurySize < 400000 ether) {
return 100;
}
else if(_treasurySize >= 400000 ether && _treasurySize < 700000 ether) {
return 50;
}
else {
return 25;
}
}
}
|
setCommission
|
function setCommission(uint _treasurySize) pure internal returns(uint) {
if (_treasurySize < 25000 ether) {
return 500;
}
else if(_treasurySize >= 25000 ether && _treasurySize < 50000 ether) {
return 400;
}
else if(_treasurySize >= 50000 ether && _treasurySize < 100000 ether) {
return 300;
}
else if(_treasurySize >= 100000 ether && _treasurySize < 2000000 ether) {
return 200;
}
else if(_treasurySize >= 200000 ether && _treasurySize < 400000 ether) {
return 100;
}
else if(_treasurySize >= 400000 ether && _treasurySize < 700000 ether) {
return 50;
}
else {
return 25;
}
}
|
/////////////////////
/// Commission ///
/////////////////////
|
NatSpecSingleLine
|
v0.8.0+commit.c7dfd78e
|
{
"func_code_index": [
2057,
2836
]
}
| 54,590 |
||||
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 _a, uint256 _b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (_a == 0) {
return 0;
}
uint256 c = _a * _b;
require(c / _a == _b);
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b > 0); // Solidity only automatically asserts when dividing by 0
uint256 c = _a / _b;
// assert(_a == _b * c + _a % _b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b <= _a);
uint256 c = _a - _b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 _a, uint256 _b) internal pure returns (uint256) {
uint256 c = _a + _b;
require(c >= _a);
return c;
}
}
|
/**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/
|
NatSpecMultiLine
|
mul
|
function mul(uint256 _a, uint256 _b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (_a == 0) {
return 0;
}
uint256 c = _a * _b;
require(c / _a == _b);
return c;
}
|
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
96,
541
]
}
| 54,591 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 _a, uint256 _b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (_a == 0) {
return 0;
}
uint256 c = _a * _b;
require(c / _a == _b);
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b > 0); // Solidity only automatically asserts when dividing by 0
uint256 c = _a / _b;
// assert(_a == _b * c + _a % _b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b <= _a);
uint256 c = _a - _b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 _a, uint256 _b) internal pure returns (uint256) {
uint256 c = _a + _b;
require(c >= _a);
return c;
}
}
|
/**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/
|
NatSpecMultiLine
|
div
|
function div(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b > 0); // Solidity only automatically asserts when dividing by 0
uint256 c = _a / _b;
// assert(_a == _b * c + _a % _b); // There is no case in which this doesn't hold
return c;
}
|
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
659,
967
]
}
| 54,592 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 _a, uint256 _b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (_a == 0) {
return 0;
}
uint256 c = _a * _b;
require(c / _a == _b);
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b > 0); // Solidity only automatically asserts when dividing by 0
uint256 c = _a / _b;
// assert(_a == _b * c + _a % _b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b <= _a);
uint256 c = _a - _b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 _a, uint256 _b) internal pure returns (uint256) {
uint256 c = _a + _b;
require(c >= _a);
return c;
}
}
|
/**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/
|
NatSpecMultiLine
|
sub
|
function sub(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b <= _a);
uint256 c = _a - _b;
return c;
}
|
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
1088,
1249
]
}
| 54,593 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Multiplies two numbers, reverts on overflow.
*/
function mul(uint256 _a, uint256 _b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
if (_a == 0) {
return 0;
}
uint256 c = _a * _b;
require(c / _a == _b);
return c;
}
/**
* @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
*/
function div(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b > 0); // Solidity only automatically asserts when dividing by 0
uint256 c = _a / _b;
// assert(_a == _b * c + _a % _b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
*/
function sub(uint256 _a, uint256 _b) internal pure returns (uint256) {
require(_b <= _a);
uint256 c = _a - _b;
return c;
}
/**
* @dev Adds two numbers, reverts on overflow.
*/
function add(uint256 _a, uint256 _b) internal pure returns (uint256) {
uint256 c = _a + _b;
require(c >= _a);
return c;
}
}
|
/**
* @title SafeMath
* @dev Math operations with safety checks that revert on error
*/
|
NatSpecMultiLine
|
add
|
function add(uint256 _a, uint256 _b) internal pure returns (uint256) {
uint256 c = _a + _b;
require(c >= _a);
return c;
}
|
/**
* @dev Adds two numbers, reverts on overflow.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
1320,
1480
]
}
| 54,594 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
Ownable
|
contract Ownable {
address public owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
constructor() public {
owner = msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0));
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
}
|
/**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/
|
NatSpecMultiLine
|
transferOwnership
|
function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
|
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
697,
813
]
}
| 54,595 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
Ownable
|
contract Ownable {
address public owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
constructor() public {
owner = msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0));
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
}
|
/**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/
|
NatSpecMultiLine
|
_transferOwnership
|
function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0));
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
|
/**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
956,
1150
]
}
| 54,596 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
Pausable
|
contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*/
modifier whenNotPaused() {
require(!paused);
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*/
modifier whenPaused() {
require(paused);
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
}
|
/**
* @title Pausable
* @dev Base contract which allows children to implement an emergency stop mechanism.
*/
|
NatSpecMultiLine
|
pause
|
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
|
/**
* @dev called by the owner to pause, triggers stopped state
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
553,
661
]
}
| 54,597 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
Pausable
|
contract Pausable is Ownable {
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*/
modifier whenNotPaused() {
require(!paused);
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*/
modifier whenPaused() {
require(paused);
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
}
|
/**
* @title Pausable
* @dev Base contract which allows children to implement an emergency stop mechanism.
*/
|
NatSpecMultiLine
|
unpause
|
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
|
/**
* @dev called by the owner to unpause, returns to normal state
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
749,
859
]
}
| 54,598 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
StandardToken
|
contract StandardToken is ERC20,Blacklist {
using SafeMath for uint256;
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) internal allowed;
uint256 totalSupply_;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(
address _owner,
address _spender
)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
/**
* @dev Transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value <= balances[msg.sender]);
require(_to != address(0));
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(
address _from,
address _to,
uint256 _value
)
whenNotPaused
whiteAddress
public
returns (bool)
{
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(_to != address(0));
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value == 0 || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(
address _spender,
uint256 _addedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(
address _spender,
uint256 _subtractedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
|
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/issues/20
* Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
|
NatSpecMultiLine
|
totalSupply
|
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
|
/**
* @dev Total number of tokens in existence
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
294,
390
]
}
| 54,599 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
StandardToken
|
contract StandardToken is ERC20,Blacklist {
using SafeMath for uint256;
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) internal allowed;
uint256 totalSupply_;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(
address _owner,
address _spender
)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
/**
* @dev Transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value <= balances[msg.sender]);
require(_to != address(0));
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(
address _from,
address _to,
uint256 _value
)
whenNotPaused
whiteAddress
public
returns (bool)
{
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(_to != address(0));
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value == 0 || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(
address _spender,
uint256 _addedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(
address _spender,
uint256 _subtractedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
|
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/issues/20
* Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
|
NatSpecMultiLine
|
balanceOf
|
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
|
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
606,
718
]
}
| 54,600 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
StandardToken
|
contract StandardToken is ERC20,Blacklist {
using SafeMath for uint256;
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) internal allowed;
uint256 totalSupply_;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(
address _owner,
address _spender
)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
/**
* @dev Transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value <= balances[msg.sender]);
require(_to != address(0));
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(
address _from,
address _to,
uint256 _value
)
whenNotPaused
whiteAddress
public
returns (bool)
{
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(_to != address(0));
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value == 0 || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(
address _spender,
uint256 _addedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(
address _spender,
uint256 _subtractedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
|
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/issues/20
* Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
|
NatSpecMultiLine
|
allowance
|
function allowance(
address _owner,
address _spender
)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
|
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
1049,
1245
]
}
| 54,601 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
StandardToken
|
contract StandardToken is ERC20,Blacklist {
using SafeMath for uint256;
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) internal allowed;
uint256 totalSupply_;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(
address _owner,
address _spender
)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
/**
* @dev Transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value <= balances[msg.sender]);
require(_to != address(0));
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(
address _from,
address _to,
uint256 _value
)
whenNotPaused
whiteAddress
public
returns (bool)
{
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(_to != address(0));
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value == 0 || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(
address _spender,
uint256 _addedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(
address _spender,
uint256 _subtractedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
|
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/issues/20
* Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
|
NatSpecMultiLine
|
transfer
|
function transfer(address _to, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value <= balances[msg.sender]);
require(_to != address(0));
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
|
/**
* @dev Transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
1413,
1802
]
}
| 54,602 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
StandardToken
|
contract StandardToken is ERC20,Blacklist {
using SafeMath for uint256;
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) internal allowed;
uint256 totalSupply_;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(
address _owner,
address _spender
)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
/**
* @dev Transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value <= balances[msg.sender]);
require(_to != address(0));
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(
address _from,
address _to,
uint256 _value
)
whenNotPaused
whiteAddress
public
returns (bool)
{
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(_to != address(0));
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value == 0 || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(
address _spender,
uint256 _addedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(
address _spender,
uint256 _subtractedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
|
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/issues/20
* Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
|
NatSpecMultiLine
|
transferFrom
|
function transferFrom(
address _from,
address _to,
uint256 _value
)
whenNotPaused
whiteAddress
public
returns (bool)
{
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(_to != address(0));
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
|
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
2089,
2689
]
}
| 54,603 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
StandardToken
|
contract StandardToken is ERC20,Blacklist {
using SafeMath for uint256;
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) internal allowed;
uint256 totalSupply_;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(
address _owner,
address _spender
)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
/**
* @dev Transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value <= balances[msg.sender]);
require(_to != address(0));
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(
address _from,
address _to,
uint256 _value
)
whenNotPaused
whiteAddress
public
returns (bool)
{
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(_to != address(0));
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value == 0 || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(
address _spender,
uint256 _addedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(
address _spender,
uint256 _subtractedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
|
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/issues/20
* Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
|
NatSpecMultiLine
|
approve
|
function approve(address _spender, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value == 0 || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
|
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
3325,
3644
]
}
| 54,604 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
StandardToken
|
contract StandardToken is ERC20,Blacklist {
using SafeMath for uint256;
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) internal allowed;
uint256 totalSupply_;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(
address _owner,
address _spender
)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
/**
* @dev Transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value <= balances[msg.sender]);
require(_to != address(0));
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(
address _from,
address _to,
uint256 _value
)
whenNotPaused
whiteAddress
public
returns (bool)
{
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(_to != address(0));
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value == 0 || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(
address _spender,
uint256 _addedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(
address _spender,
uint256 _subtractedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
|
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/issues/20
* Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
|
NatSpecMultiLine
|
increaseApproval
|
function increaseApproval(
address _spender,
uint256 _addedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
|
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
4114,
4510
]
}
| 54,605 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
StandardToken
|
contract StandardToken is ERC20,Blacklist {
using SafeMath for uint256;
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) internal allowed;
uint256 totalSupply_;
/**
* @dev Total number of tokens in existence
*/
function totalSupply() public view returns (uint256) {
return totalSupply_;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) public view returns (uint256) {
return balances[_owner];
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifying the amount of tokens still available for the spender.
*/
function allowance(
address _owner,
address _spender
)
public
view
returns (uint256)
{
return allowed[_owner][_spender];
}
/**
* @dev Transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value <= balances[msg.sender]);
require(_to != address(0));
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amount of tokens to be transferred
*/
function transferFrom(
address _from,
address _to,
uint256 _value
)
whenNotPaused
whiteAddress
public
returns (bool)
{
require(_value <= balances[_from]);
require(_value <= allowed[_from][msg.sender]);
require(_to != address(0));
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
/**
* @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
* Beware that changing an allowance with this method brings the risk that someone may use both the old
* and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
* race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) whenNotPaused whiteAddress public returns (bool) {
require(_value == 0 || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Increase the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To increment
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _addedValue The amount of tokens to increase the allowance by.
*/
function increaseApproval(
address _spender,
uint256 _addedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
allowed[msg.sender][_spender] = (
allowed[msg.sender][_spender].add(_addedValue));
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
function decreaseApproval(
address _spender,
uint256 _subtractedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
}
|
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* https://github.com/ethereum/EIPs/issues/20
* Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
|
NatSpecMultiLine
|
decreaseApproval
|
function decreaseApproval(
address _spender,
uint256 _subtractedValue
)
whenNotPaused
whiteAddress
public
returns (bool)
{
uint256 oldValue = allowed[msg.sender][_spender];
if (_subtractedValue >= oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
}
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
|
/**
* @dev Decrease the amount of tokens that an owner allowed to a spender.
* approve should be called when allowed[_spender] == 0. To decrement
* allowed value is better to use this function to avoid 2 calls (and wait until
* the first transaction is mined)
* From MonolithDAO Token.sol
* @param _spender The address which will spend the funds.
* @param _subtractedValue The amount of tokens to decrease the allowance by.
*/
|
NatSpecMultiLine
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
4985,
5540
]
}
| 54,606 |
XXX
|
XXX.sol
|
0xb3ea8b24ec50fd69ddcb389272ad9e36a714c5fa
|
Solidity
|
XXX
|
contract XXX is StandardToken {
// If ether is sent to this address, send it back.
function () public {
revert();
}
string public constant name = "xxx";
string public constant symbol = "XXX";
uint8 public constant decimals = 18;
uint256 public constant initial_supply = 1000000000;
/**
* @dev Constructor that gives msg.sender all of existing tokens.
*/
constructor() public {
totalSupply_ = initial_supply * (10 ** uint256(decimals));
balances[msg.sender] = totalSupply_;
emit Transfer(address(0), msg.sender, totalSupply_);
}
}
|
function () public {
revert();
}
|
// If ether is sent to this address, send it back.
|
LineComment
|
v0.4.24+commit.e67f0147
|
None
|
bzzr://a3ee84565d05a5048b65c0eb65c61a35476bd0399a6f11bb9a9d72653f3d5d3d
|
{
"func_code_index": [
89,
140
]
}
| 54,607 |
|||
TRACIOSale
|
@openzeppelin/contracts/utils/Address.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Address
|
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Converts an `address` into `address payable`. Note that this is
* simply a type cast: the actual underlying value is not changed.
*
* _Available since v2.4.0._
*/
function toPayable(address account) internal pure returns (address payable) {
return address(uint160(account));
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*
* _Available since v2.4.0._
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-call-value
(bool success, ) = recipient.call.value(amount)("");
require(success, "Address: unable to send value, recipient may have reverted");
}
}
|
/**
* @dev Collection of functions related to the address type
*/
|
NatSpecMultiLine
|
isContract
|
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
|
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
607,
1231
]
}
| 54,608 |
TRACIOSale
|
@openzeppelin/contracts/utils/Address.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Address
|
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Converts an `address` into `address payable`. Note that this is
* simply a type cast: the actual underlying value is not changed.
*
* _Available since v2.4.0._
*/
function toPayable(address account) internal pure returns (address payable) {
return address(uint160(account));
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*
* _Available since v2.4.0._
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-call-value
(bool success, ) = recipient.call.value(amount)("");
require(success, "Address: unable to send value, recipient may have reverted");
}
}
|
/**
* @dev Collection of functions related to the address type
*/
|
NatSpecMultiLine
|
toPayable
|
function toPayable(address account) internal pure returns (address payable) {
return address(uint160(account));
}
|
/**
* @dev Converts an `address` into `address payable`. Note that this is
* simply a type cast: the actual underlying value is not changed.
*
* _Available since v2.4.0._
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
1443,
1575
]
}
| 54,609 |
TRACIOSale
|
@openzeppelin/contracts/utils/Address.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Address
|
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Converts an `address` into `address payable`. Note that this is
* simply a type cast: the actual underlying value is not changed.
*
* _Available since v2.4.0._
*/
function toPayable(address account) internal pure returns (address payable) {
return address(uint160(account));
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*
* _Available since v2.4.0._
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-call-value
(bool success, ) = recipient.call.value(amount)("");
require(success, "Address: unable to send value, recipient may have reverted");
}
}
|
/**
* @dev Collection of functions related to the address type
*/
|
NatSpecMultiLine
|
sendValue
|
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-call-value
(bool success, ) = recipient.call.value(amount)("");
require(success, "Address: unable to send value, recipient may have reverted");
}
|
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*
* _Available since v2.4.0._
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
2547,
2923
]
}
| 54,610 |
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UnilotToken
|
contract UnilotToken is ERC20 {
struct TokenStage {
string name;
uint numCoinsStart;
uint coinsAvailable;
uint bonus;
uint startsAt;
uint endsAt;
uint balance; //Amount of ether sent during this stage
}
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//This one duplicates the above but will have to use it because of
//solidity bug with power operation
uint public constant accuracy = 1000000000000000000;
//500 mln tokens
uint256 internal _totalSupply = 500 * (10**6) * accuracy;
//Public investor can buy tokens for 30 ether at maximum
uint256 public constant singleInvestorCap = 30 ether; //30 ether
//Distribution units
uint public constant DST_ICO = 62; //62%
uint public constant DST_RESERVE = 10; //10%
uint public constant DST_BOUNTY = 3; //3%
//Referral and Bonus Program
uint public constant DST_R_N_B_PROGRAM = 10; //10%
uint public constant DST_ADVISERS = 5; //5%
uint public constant DST_TEAM = 10; //10%
//Referral Bonuses
uint public constant REFERRAL_BONUS_LEVEL1 = 5; //5%
uint public constant REFERRAL_BONUS_LEVEL2 = 4; //4%
uint public constant REFERRAL_BONUS_LEVEL3 = 3; //3%
uint public constant REFERRAL_BONUS_LEVEL4 = 2; //2%
uint public constant REFERRAL_BONUS_LEVEL5 = 1; //1%
//Token amount
//25 mln tokens
uint public constant TOKEN_AMOUNT_PRE_ICO = 25 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4 = 5 * (10**6) * accuracy;
//122.5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5 = 1225 * (10**5) * accuracy;
//265 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE2 = 1425 * (10**5) * accuracy;
uint public constant BONUS_PRE_ICO = 40; //40%
uint public constant BONUS_ICO_STAGE1_PRE_SALE1 = 35; //35%
uint public constant BONUS_ICO_STAGE1_PRE_SALE2 = 30; //30%
uint public constant BONUS_ICO_STAGE1_PRE_SALE3 = 25; //25%
uint public constant BONUS_ICO_STAGE1_PRE_SALE4 = 20; //20%
uint public constant BONUS_ICO_STAGE1_PRE_SALE5 = 0; //0%
uint public constant BONUS_ICO_STAGE2 = 0; //No bonus
//Token Price on Coin Offer
uint256 public constant price = 79 szabo; //0.000079 ETH
address public constant ADVISORS_WALLET = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
address public constant RESERVE_WALLET = 0x731B47847352fA2cFf83D5251FD6a5266f90878d;
address public constant BOUNTY_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant R_N_D_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant STORAGE_WALLET = 0xE2A8F147fc808738Cab152b01C7245F386fD8d89;
// Owner of this contract
address public administrator;
// Balances for each account
mapping(address => uint256) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) allowed;
//Mostly needed for internal use
uint256 internal totalCoinsAvailable;
//All token stages. Total 6 stages
TokenStage[7] stages;
//Index of current stage in stage array
uint currentStage;
//Enables or disables debug mode. Debug mode is set only in constructor.
bool isDebug = false;
event StageUpdated(string from, string to);
// Functions with this modifier can only be executed by the owner
modifier onlyAdministrator() {
require(msg.sender == administrator);
_;
}
modifier notAdministrator() {
require(msg.sender != administrator);
_;
}
modifier onlyDuringICO() {
require(currentStage < stages.length);
_;
}
modifier onlyAfterICO(){
require(currentStage >= stages.length);
_;
}
modifier meetTheCap() {
require(msg.value >= price); // At least one token
_;
}
modifier isFreezedReserve(address _address) {
require( ( _address == RESERVE_WALLET ) && now > (stages[ (stages.length - 1) ].endsAt + 182 days));
_;
}
// Constructor
function UnilotToken()
public
{
administrator = msg.sender;
totalCoinsAvailable = _totalSupply;
//Was as fn parameter for debugging
isDebug = false;
_setupStages();
_proceedStage();
}
function prealocateCoins()
public
onlyAdministrator
{
totalCoinsAvailable -= balances[ADVISORS_WALLET] += ( ( _totalSupply * DST_ADVISERS ) / 100 );
totalCoinsAvailable -= balances[RESERVE_WALLET] += ( ( _totalSupply * DST_RESERVE ) / 100 );
address[7] memory teamWallets = getTeamWallets();
uint teamSupply = ( ( _totalSupply * DST_TEAM ) / 100 );
uint memberAmount = teamSupply / teamWallets.length;
for(uint i = 0; i < teamWallets.length; i++) {
if ( i == ( teamWallets.length - 1 ) ) {
memberAmount = teamSupply;
}
balances[teamWallets[i]] += memberAmount;
teamSupply -= memberAmount;
totalCoinsAvailable -= memberAmount;
}
}
function getTeamWallets()
public
pure
returns (address[7] memory result)
{
result[0] = 0x40e3D8fFc46d73Ab5DF878C751D813a4cB7B388D;
result[1] = 0x5E065a80f6635B6a46323e3383057cE6051aAcA0;
result[2] = 0x0cF3585FbAB2a1299F8347a9B87CF7B4fcdCE599;
result[3] = 0x5fDd3BA5B6Ff349d31eB0a72A953E454C99494aC;
result[4] = 0xC9be9818eE1B2cCf2E4f669d24eB0798390Ffb54;
result[5] = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
result[6] = 0xd13289203889bD898d49e31a1500388441C03663;
}
function _setupStages()
internal
{
//Presale stage
stages[0].name = 'Presale stage';
stages[0].numCoinsStart = totalCoinsAvailable;
stages[0].coinsAvailable = TOKEN_AMOUNT_PRE_ICO;
stages[0].bonus = BONUS_PRE_ICO;
if (isDebug) {
stages[0].startsAt = now;
stages[0].endsAt = stages[0].startsAt + 30 seconds;
} else {
stages[0].startsAt = 1515610800; //10th of January 2018 at 19:00UTC
stages[0].endsAt = 1518894000; //17th of February 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 1
stages[1].name = 'ICO Stage 1 pre-sale 1';
stages[1].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1;
stages[1].bonus = BONUS_ICO_STAGE1_PRE_SALE1;
if (isDebug) {
stages[1].startsAt = stages[0].endsAt;
stages[1].endsAt = stages[1].startsAt + 30 seconds;
} else {
stages[1].startsAt = 1519326000; //22th of February 2018 at 19:00UTC
stages[1].endsAt = 1521745200; //22th of March 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 2
stages[2].name = 'ICO Stage 1 pre-sale 2';
stages[2].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2;
stages[2].bonus = BONUS_ICO_STAGE1_PRE_SALE2;
stages[2].startsAt = stages[1].startsAt;
stages[2].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 3
stages[3].name = 'ICO Stage 1 pre-sale 3';
stages[3].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3;
stages[3].bonus = BONUS_ICO_STAGE1_PRE_SALE3;
stages[3].startsAt = stages[1].startsAt;
stages[3].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 4
stages[4].name = 'ICO Stage 1 pre-sale 4';
stages[4].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4;
stages[4].bonus = BONUS_ICO_STAGE1_PRE_SALE4;
stages[4].startsAt = stages[1].startsAt;
stages[4].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 5
stages[5].name = 'ICO Stage 1 pre-sale 5';
stages[5].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5;
stages[5].bonus = BONUS_ICO_STAGE1_PRE_SALE5;
stages[5].startsAt = stages[1].startsAt;
stages[5].endsAt = stages[1].endsAt;
//ICO Stage 2
stages[6].name = 'ICO Stage 2';
stages[6].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE2;
stages[6].bonus = BONUS_ICO_STAGE2;
if (isDebug) {
stages[6].startsAt = stages[5].endsAt;
stages[6].endsAt = stages[6].startsAt + 30 seconds;
} else {
stages[6].startsAt = 1524250800; //20th of April 2018 at 19:00UTC
stages[6].endsAt = 1526842800; //20th of May 2018 at 19:00UTC
}
}
function _proceedStage()
internal
{
while (true) {
if ( currentStage < stages.length
&& (now >= stages[currentStage].endsAt || getAvailableCoinsForCurrentStage() == 0) ) {
currentStage++;
uint totalTokensForSale = TOKEN_AMOUNT_PRE_ICO
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4
+ TOKEN_AMOUNT_ICO_STAGE2;
if (currentStage >= stages.length) {
//Burning all unsold tokens and proportionally other for deligation
_totalSupply -= ( ( ( stages[(stages.length - 1)].coinsAvailable * DST_BOUNTY ) / 100 )
+ ( ( stages[(stages.length - 1)].coinsAvailable * DST_R_N_B_PROGRAM ) / 100 ) );
balances[BOUNTY_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_BOUNTY)/100);
balances[R_N_D_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_R_N_B_PROGRAM)/100);
totalCoinsAvailable = 0;
break; //ICO ended
}
stages[currentStage].numCoinsStart = totalCoinsAvailable;
if ( currentStage > 0 ) {
//Move all left tokens to last stage
stages[(stages.length - 1)].coinsAvailable += stages[ (currentStage - 1 ) ].coinsAvailable;
StageUpdated(stages[currentStage - 1].name, stages[currentStage].name);
}
} else {
break;
}
}
}
function getTotalCoinsAvailable()
public
view
returns(uint)
{
return totalCoinsAvailable;
}
function getAvailableCoinsForCurrentStage()
public
view
returns(uint)
{
TokenStage memory stage = stages[currentStage];
return stage.coinsAvailable;
}
//------------- ERC20 methods -------------//
function totalSupply()
public
constant
returns (uint256)
{
return _totalSupply;
}
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint256 balance)
{
return balances[_owner];
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_to)
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
onlyAfterICO
isFreezedReserve(_from)
isFreezedReserve(_to)
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_spender)
returns (bool success)
{
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint256 remaining)
{
return allowed[_owner][_spender];
}
//------------- ERC20 Methods END -------------//
//Returns bonus for certain level of reference
function calculateReferralBonus(uint amount, uint level)
public
pure
returns (uint bonus)
{
bonus = 0;
if ( level == 1 ) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL1 ) / 100 );
} else if (level == 2) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL2 ) / 100 );
} else if (level == 3) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL3 ) / 100 );
} else if (level == 4) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL4 ) / 100 );
} else if (level == 5) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL5 ) / 100 );
}
}
function calculateBonus(uint amountOfTokens)
public
view
returns (uint)
{
return ( ( stages[currentStage].bonus * amountOfTokens ) / 100 );
}
event TokenPurchased(string stage, uint valueSubmitted, uint valueRefunded, uint tokensPurchased);
function ()
public
payable
notAdministrator
onlyDuringICO
meetTheCap
{
_proceedStage();
require(currentStage < stages.length);
require(stages[currentStage].startsAt <= now && now < stages[currentStage].endsAt);
require(getAvailableCoinsForCurrentStage() > 0);
uint requestedAmountOfTokens = ( ( msg.value * accuracy ) / price );
uint amountToBuy = requestedAmountOfTokens;
uint refund = 0;
if ( amountToBuy > getAvailableCoinsForCurrentStage() ) {
amountToBuy = getAvailableCoinsForCurrentStage();
refund = ( ( (requestedAmountOfTokens - amountToBuy) / accuracy ) * price );
// Returning ETH
msg.sender.transfer( refund );
}
TokenPurchased(stages[currentStage].name, msg.value, refund, amountToBuy);
stages[currentStage].coinsAvailable -= amountToBuy;
stages[currentStage].balance += (msg.value - refund);
uint amountDelivered = amountToBuy + calculateBonus(amountToBuy);
balances[msg.sender] += amountDelivered;
totalCoinsAvailable -= amountDelivered;
if ( getAvailableCoinsForCurrentStage() == 0 ) {
_proceedStage();
}
STORAGE_WALLET.transfer(this.balance);
}
//It doesn't really close the stage
//It just needed to push transaction to update stage and update block.now
function closeStage()
public
onlyAdministrator
{
_proceedStage();
}
}
|
UnilotToken
|
function UnilotToken()
public
{
administrator = msg.sender;
totalCoinsAvailable = _totalSupply;
//Was as fn parameter for debugging
isDebug = false;
_setupStages();
_proceedStage();
}
|
// Constructor
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
4778,
5041
]
}
| 54,611 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UnilotToken
|
contract UnilotToken is ERC20 {
struct TokenStage {
string name;
uint numCoinsStart;
uint coinsAvailable;
uint bonus;
uint startsAt;
uint endsAt;
uint balance; //Amount of ether sent during this stage
}
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//This one duplicates the above but will have to use it because of
//solidity bug with power operation
uint public constant accuracy = 1000000000000000000;
//500 mln tokens
uint256 internal _totalSupply = 500 * (10**6) * accuracy;
//Public investor can buy tokens for 30 ether at maximum
uint256 public constant singleInvestorCap = 30 ether; //30 ether
//Distribution units
uint public constant DST_ICO = 62; //62%
uint public constant DST_RESERVE = 10; //10%
uint public constant DST_BOUNTY = 3; //3%
//Referral and Bonus Program
uint public constant DST_R_N_B_PROGRAM = 10; //10%
uint public constant DST_ADVISERS = 5; //5%
uint public constant DST_TEAM = 10; //10%
//Referral Bonuses
uint public constant REFERRAL_BONUS_LEVEL1 = 5; //5%
uint public constant REFERRAL_BONUS_LEVEL2 = 4; //4%
uint public constant REFERRAL_BONUS_LEVEL3 = 3; //3%
uint public constant REFERRAL_BONUS_LEVEL4 = 2; //2%
uint public constant REFERRAL_BONUS_LEVEL5 = 1; //1%
//Token amount
//25 mln tokens
uint public constant TOKEN_AMOUNT_PRE_ICO = 25 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4 = 5 * (10**6) * accuracy;
//122.5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5 = 1225 * (10**5) * accuracy;
//265 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE2 = 1425 * (10**5) * accuracy;
uint public constant BONUS_PRE_ICO = 40; //40%
uint public constant BONUS_ICO_STAGE1_PRE_SALE1 = 35; //35%
uint public constant BONUS_ICO_STAGE1_PRE_SALE2 = 30; //30%
uint public constant BONUS_ICO_STAGE1_PRE_SALE3 = 25; //25%
uint public constant BONUS_ICO_STAGE1_PRE_SALE4 = 20; //20%
uint public constant BONUS_ICO_STAGE1_PRE_SALE5 = 0; //0%
uint public constant BONUS_ICO_STAGE2 = 0; //No bonus
//Token Price on Coin Offer
uint256 public constant price = 79 szabo; //0.000079 ETH
address public constant ADVISORS_WALLET = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
address public constant RESERVE_WALLET = 0x731B47847352fA2cFf83D5251FD6a5266f90878d;
address public constant BOUNTY_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant R_N_D_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant STORAGE_WALLET = 0xE2A8F147fc808738Cab152b01C7245F386fD8d89;
// Owner of this contract
address public administrator;
// Balances for each account
mapping(address => uint256) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) allowed;
//Mostly needed for internal use
uint256 internal totalCoinsAvailable;
//All token stages. Total 6 stages
TokenStage[7] stages;
//Index of current stage in stage array
uint currentStage;
//Enables or disables debug mode. Debug mode is set only in constructor.
bool isDebug = false;
event StageUpdated(string from, string to);
// Functions with this modifier can only be executed by the owner
modifier onlyAdministrator() {
require(msg.sender == administrator);
_;
}
modifier notAdministrator() {
require(msg.sender != administrator);
_;
}
modifier onlyDuringICO() {
require(currentStage < stages.length);
_;
}
modifier onlyAfterICO(){
require(currentStage >= stages.length);
_;
}
modifier meetTheCap() {
require(msg.value >= price); // At least one token
_;
}
modifier isFreezedReserve(address _address) {
require( ( _address == RESERVE_WALLET ) && now > (stages[ (stages.length - 1) ].endsAt + 182 days));
_;
}
// Constructor
function UnilotToken()
public
{
administrator = msg.sender;
totalCoinsAvailable = _totalSupply;
//Was as fn parameter for debugging
isDebug = false;
_setupStages();
_proceedStage();
}
function prealocateCoins()
public
onlyAdministrator
{
totalCoinsAvailable -= balances[ADVISORS_WALLET] += ( ( _totalSupply * DST_ADVISERS ) / 100 );
totalCoinsAvailable -= balances[RESERVE_WALLET] += ( ( _totalSupply * DST_RESERVE ) / 100 );
address[7] memory teamWallets = getTeamWallets();
uint teamSupply = ( ( _totalSupply * DST_TEAM ) / 100 );
uint memberAmount = teamSupply / teamWallets.length;
for(uint i = 0; i < teamWallets.length; i++) {
if ( i == ( teamWallets.length - 1 ) ) {
memberAmount = teamSupply;
}
balances[teamWallets[i]] += memberAmount;
teamSupply -= memberAmount;
totalCoinsAvailable -= memberAmount;
}
}
function getTeamWallets()
public
pure
returns (address[7] memory result)
{
result[0] = 0x40e3D8fFc46d73Ab5DF878C751D813a4cB7B388D;
result[1] = 0x5E065a80f6635B6a46323e3383057cE6051aAcA0;
result[2] = 0x0cF3585FbAB2a1299F8347a9B87CF7B4fcdCE599;
result[3] = 0x5fDd3BA5B6Ff349d31eB0a72A953E454C99494aC;
result[4] = 0xC9be9818eE1B2cCf2E4f669d24eB0798390Ffb54;
result[5] = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
result[6] = 0xd13289203889bD898d49e31a1500388441C03663;
}
function _setupStages()
internal
{
//Presale stage
stages[0].name = 'Presale stage';
stages[0].numCoinsStart = totalCoinsAvailable;
stages[0].coinsAvailable = TOKEN_AMOUNT_PRE_ICO;
stages[0].bonus = BONUS_PRE_ICO;
if (isDebug) {
stages[0].startsAt = now;
stages[0].endsAt = stages[0].startsAt + 30 seconds;
} else {
stages[0].startsAt = 1515610800; //10th of January 2018 at 19:00UTC
stages[0].endsAt = 1518894000; //17th of February 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 1
stages[1].name = 'ICO Stage 1 pre-sale 1';
stages[1].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1;
stages[1].bonus = BONUS_ICO_STAGE1_PRE_SALE1;
if (isDebug) {
stages[1].startsAt = stages[0].endsAt;
stages[1].endsAt = stages[1].startsAt + 30 seconds;
} else {
stages[1].startsAt = 1519326000; //22th of February 2018 at 19:00UTC
stages[1].endsAt = 1521745200; //22th of March 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 2
stages[2].name = 'ICO Stage 1 pre-sale 2';
stages[2].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2;
stages[2].bonus = BONUS_ICO_STAGE1_PRE_SALE2;
stages[2].startsAt = stages[1].startsAt;
stages[2].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 3
stages[3].name = 'ICO Stage 1 pre-sale 3';
stages[3].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3;
stages[3].bonus = BONUS_ICO_STAGE1_PRE_SALE3;
stages[3].startsAt = stages[1].startsAt;
stages[3].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 4
stages[4].name = 'ICO Stage 1 pre-sale 4';
stages[4].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4;
stages[4].bonus = BONUS_ICO_STAGE1_PRE_SALE4;
stages[4].startsAt = stages[1].startsAt;
stages[4].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 5
stages[5].name = 'ICO Stage 1 pre-sale 5';
stages[5].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5;
stages[5].bonus = BONUS_ICO_STAGE1_PRE_SALE5;
stages[5].startsAt = stages[1].startsAt;
stages[5].endsAt = stages[1].endsAt;
//ICO Stage 2
stages[6].name = 'ICO Stage 2';
stages[6].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE2;
stages[6].bonus = BONUS_ICO_STAGE2;
if (isDebug) {
stages[6].startsAt = stages[5].endsAt;
stages[6].endsAt = stages[6].startsAt + 30 seconds;
} else {
stages[6].startsAt = 1524250800; //20th of April 2018 at 19:00UTC
stages[6].endsAt = 1526842800; //20th of May 2018 at 19:00UTC
}
}
function _proceedStage()
internal
{
while (true) {
if ( currentStage < stages.length
&& (now >= stages[currentStage].endsAt || getAvailableCoinsForCurrentStage() == 0) ) {
currentStage++;
uint totalTokensForSale = TOKEN_AMOUNT_PRE_ICO
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4
+ TOKEN_AMOUNT_ICO_STAGE2;
if (currentStage >= stages.length) {
//Burning all unsold tokens and proportionally other for deligation
_totalSupply -= ( ( ( stages[(stages.length - 1)].coinsAvailable * DST_BOUNTY ) / 100 )
+ ( ( stages[(stages.length - 1)].coinsAvailable * DST_R_N_B_PROGRAM ) / 100 ) );
balances[BOUNTY_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_BOUNTY)/100);
balances[R_N_D_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_R_N_B_PROGRAM)/100);
totalCoinsAvailable = 0;
break; //ICO ended
}
stages[currentStage].numCoinsStart = totalCoinsAvailable;
if ( currentStage > 0 ) {
//Move all left tokens to last stage
stages[(stages.length - 1)].coinsAvailable += stages[ (currentStage - 1 ) ].coinsAvailable;
StageUpdated(stages[currentStage - 1].name, stages[currentStage].name);
}
} else {
break;
}
}
}
function getTotalCoinsAvailable()
public
view
returns(uint)
{
return totalCoinsAvailable;
}
function getAvailableCoinsForCurrentStage()
public
view
returns(uint)
{
TokenStage memory stage = stages[currentStage];
return stage.coinsAvailable;
}
//------------- ERC20 methods -------------//
function totalSupply()
public
constant
returns (uint256)
{
return _totalSupply;
}
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint256 balance)
{
return balances[_owner];
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_to)
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
onlyAfterICO
isFreezedReserve(_from)
isFreezedReserve(_to)
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_spender)
returns (bool success)
{
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint256 remaining)
{
return allowed[_owner][_spender];
}
//------------- ERC20 Methods END -------------//
//Returns bonus for certain level of reference
function calculateReferralBonus(uint amount, uint level)
public
pure
returns (uint bonus)
{
bonus = 0;
if ( level == 1 ) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL1 ) / 100 );
} else if (level == 2) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL2 ) / 100 );
} else if (level == 3) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL3 ) / 100 );
} else if (level == 4) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL4 ) / 100 );
} else if (level == 5) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL5 ) / 100 );
}
}
function calculateBonus(uint amountOfTokens)
public
view
returns (uint)
{
return ( ( stages[currentStage].bonus * amountOfTokens ) / 100 );
}
event TokenPurchased(string stage, uint valueSubmitted, uint valueRefunded, uint tokensPurchased);
function ()
public
payable
notAdministrator
onlyDuringICO
meetTheCap
{
_proceedStage();
require(currentStage < stages.length);
require(stages[currentStage].startsAt <= now && now < stages[currentStage].endsAt);
require(getAvailableCoinsForCurrentStage() > 0);
uint requestedAmountOfTokens = ( ( msg.value * accuracy ) / price );
uint amountToBuy = requestedAmountOfTokens;
uint refund = 0;
if ( amountToBuy > getAvailableCoinsForCurrentStage() ) {
amountToBuy = getAvailableCoinsForCurrentStage();
refund = ( ( (requestedAmountOfTokens - amountToBuy) / accuracy ) * price );
// Returning ETH
msg.sender.transfer( refund );
}
TokenPurchased(stages[currentStage].name, msg.value, refund, amountToBuy);
stages[currentStage].coinsAvailable -= amountToBuy;
stages[currentStage].balance += (msg.value - refund);
uint amountDelivered = amountToBuy + calculateBonus(amountToBuy);
balances[msg.sender] += amountDelivered;
totalCoinsAvailable -= amountDelivered;
if ( getAvailableCoinsForCurrentStage() == 0 ) {
_proceedStage();
}
STORAGE_WALLET.transfer(this.balance);
}
//It doesn't really close the stage
//It just needed to push transaction to update stage and update block.now
function closeStage()
public
onlyAdministrator
{
_proceedStage();
}
}
|
totalSupply
|
function totalSupply()
public
constant
returns (uint256)
{
return _totalSupply;
}
|
//------------- ERC20 methods -------------//
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
11668,
11800
]
}
| 54,612 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UnilotToken
|
contract UnilotToken is ERC20 {
struct TokenStage {
string name;
uint numCoinsStart;
uint coinsAvailable;
uint bonus;
uint startsAt;
uint endsAt;
uint balance; //Amount of ether sent during this stage
}
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//This one duplicates the above but will have to use it because of
//solidity bug with power operation
uint public constant accuracy = 1000000000000000000;
//500 mln tokens
uint256 internal _totalSupply = 500 * (10**6) * accuracy;
//Public investor can buy tokens for 30 ether at maximum
uint256 public constant singleInvestorCap = 30 ether; //30 ether
//Distribution units
uint public constant DST_ICO = 62; //62%
uint public constant DST_RESERVE = 10; //10%
uint public constant DST_BOUNTY = 3; //3%
//Referral and Bonus Program
uint public constant DST_R_N_B_PROGRAM = 10; //10%
uint public constant DST_ADVISERS = 5; //5%
uint public constant DST_TEAM = 10; //10%
//Referral Bonuses
uint public constant REFERRAL_BONUS_LEVEL1 = 5; //5%
uint public constant REFERRAL_BONUS_LEVEL2 = 4; //4%
uint public constant REFERRAL_BONUS_LEVEL3 = 3; //3%
uint public constant REFERRAL_BONUS_LEVEL4 = 2; //2%
uint public constant REFERRAL_BONUS_LEVEL5 = 1; //1%
//Token amount
//25 mln tokens
uint public constant TOKEN_AMOUNT_PRE_ICO = 25 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4 = 5 * (10**6) * accuracy;
//122.5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5 = 1225 * (10**5) * accuracy;
//265 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE2 = 1425 * (10**5) * accuracy;
uint public constant BONUS_PRE_ICO = 40; //40%
uint public constant BONUS_ICO_STAGE1_PRE_SALE1 = 35; //35%
uint public constant BONUS_ICO_STAGE1_PRE_SALE2 = 30; //30%
uint public constant BONUS_ICO_STAGE1_PRE_SALE3 = 25; //25%
uint public constant BONUS_ICO_STAGE1_PRE_SALE4 = 20; //20%
uint public constant BONUS_ICO_STAGE1_PRE_SALE5 = 0; //0%
uint public constant BONUS_ICO_STAGE2 = 0; //No bonus
//Token Price on Coin Offer
uint256 public constant price = 79 szabo; //0.000079 ETH
address public constant ADVISORS_WALLET = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
address public constant RESERVE_WALLET = 0x731B47847352fA2cFf83D5251FD6a5266f90878d;
address public constant BOUNTY_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant R_N_D_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant STORAGE_WALLET = 0xE2A8F147fc808738Cab152b01C7245F386fD8d89;
// Owner of this contract
address public administrator;
// Balances for each account
mapping(address => uint256) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) allowed;
//Mostly needed for internal use
uint256 internal totalCoinsAvailable;
//All token stages. Total 6 stages
TokenStage[7] stages;
//Index of current stage in stage array
uint currentStage;
//Enables or disables debug mode. Debug mode is set only in constructor.
bool isDebug = false;
event StageUpdated(string from, string to);
// Functions with this modifier can only be executed by the owner
modifier onlyAdministrator() {
require(msg.sender == administrator);
_;
}
modifier notAdministrator() {
require(msg.sender != administrator);
_;
}
modifier onlyDuringICO() {
require(currentStage < stages.length);
_;
}
modifier onlyAfterICO(){
require(currentStage >= stages.length);
_;
}
modifier meetTheCap() {
require(msg.value >= price); // At least one token
_;
}
modifier isFreezedReserve(address _address) {
require( ( _address == RESERVE_WALLET ) && now > (stages[ (stages.length - 1) ].endsAt + 182 days));
_;
}
// Constructor
function UnilotToken()
public
{
administrator = msg.sender;
totalCoinsAvailable = _totalSupply;
//Was as fn parameter for debugging
isDebug = false;
_setupStages();
_proceedStage();
}
function prealocateCoins()
public
onlyAdministrator
{
totalCoinsAvailable -= balances[ADVISORS_WALLET] += ( ( _totalSupply * DST_ADVISERS ) / 100 );
totalCoinsAvailable -= balances[RESERVE_WALLET] += ( ( _totalSupply * DST_RESERVE ) / 100 );
address[7] memory teamWallets = getTeamWallets();
uint teamSupply = ( ( _totalSupply * DST_TEAM ) / 100 );
uint memberAmount = teamSupply / teamWallets.length;
for(uint i = 0; i < teamWallets.length; i++) {
if ( i == ( teamWallets.length - 1 ) ) {
memberAmount = teamSupply;
}
balances[teamWallets[i]] += memberAmount;
teamSupply -= memberAmount;
totalCoinsAvailable -= memberAmount;
}
}
function getTeamWallets()
public
pure
returns (address[7] memory result)
{
result[0] = 0x40e3D8fFc46d73Ab5DF878C751D813a4cB7B388D;
result[1] = 0x5E065a80f6635B6a46323e3383057cE6051aAcA0;
result[2] = 0x0cF3585FbAB2a1299F8347a9B87CF7B4fcdCE599;
result[3] = 0x5fDd3BA5B6Ff349d31eB0a72A953E454C99494aC;
result[4] = 0xC9be9818eE1B2cCf2E4f669d24eB0798390Ffb54;
result[5] = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
result[6] = 0xd13289203889bD898d49e31a1500388441C03663;
}
function _setupStages()
internal
{
//Presale stage
stages[0].name = 'Presale stage';
stages[0].numCoinsStart = totalCoinsAvailable;
stages[0].coinsAvailable = TOKEN_AMOUNT_PRE_ICO;
stages[0].bonus = BONUS_PRE_ICO;
if (isDebug) {
stages[0].startsAt = now;
stages[0].endsAt = stages[0].startsAt + 30 seconds;
} else {
stages[0].startsAt = 1515610800; //10th of January 2018 at 19:00UTC
stages[0].endsAt = 1518894000; //17th of February 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 1
stages[1].name = 'ICO Stage 1 pre-sale 1';
stages[1].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1;
stages[1].bonus = BONUS_ICO_STAGE1_PRE_SALE1;
if (isDebug) {
stages[1].startsAt = stages[0].endsAt;
stages[1].endsAt = stages[1].startsAt + 30 seconds;
} else {
stages[1].startsAt = 1519326000; //22th of February 2018 at 19:00UTC
stages[1].endsAt = 1521745200; //22th of March 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 2
stages[2].name = 'ICO Stage 1 pre-sale 2';
stages[2].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2;
stages[2].bonus = BONUS_ICO_STAGE1_PRE_SALE2;
stages[2].startsAt = stages[1].startsAt;
stages[2].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 3
stages[3].name = 'ICO Stage 1 pre-sale 3';
stages[3].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3;
stages[3].bonus = BONUS_ICO_STAGE1_PRE_SALE3;
stages[3].startsAt = stages[1].startsAt;
stages[3].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 4
stages[4].name = 'ICO Stage 1 pre-sale 4';
stages[4].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4;
stages[4].bonus = BONUS_ICO_STAGE1_PRE_SALE4;
stages[4].startsAt = stages[1].startsAt;
stages[4].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 5
stages[5].name = 'ICO Stage 1 pre-sale 5';
stages[5].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5;
stages[5].bonus = BONUS_ICO_STAGE1_PRE_SALE5;
stages[5].startsAt = stages[1].startsAt;
stages[5].endsAt = stages[1].endsAt;
//ICO Stage 2
stages[6].name = 'ICO Stage 2';
stages[6].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE2;
stages[6].bonus = BONUS_ICO_STAGE2;
if (isDebug) {
stages[6].startsAt = stages[5].endsAt;
stages[6].endsAt = stages[6].startsAt + 30 seconds;
} else {
stages[6].startsAt = 1524250800; //20th of April 2018 at 19:00UTC
stages[6].endsAt = 1526842800; //20th of May 2018 at 19:00UTC
}
}
function _proceedStage()
internal
{
while (true) {
if ( currentStage < stages.length
&& (now >= stages[currentStage].endsAt || getAvailableCoinsForCurrentStage() == 0) ) {
currentStage++;
uint totalTokensForSale = TOKEN_AMOUNT_PRE_ICO
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4
+ TOKEN_AMOUNT_ICO_STAGE2;
if (currentStage >= stages.length) {
//Burning all unsold tokens and proportionally other for deligation
_totalSupply -= ( ( ( stages[(stages.length - 1)].coinsAvailable * DST_BOUNTY ) / 100 )
+ ( ( stages[(stages.length - 1)].coinsAvailable * DST_R_N_B_PROGRAM ) / 100 ) );
balances[BOUNTY_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_BOUNTY)/100);
balances[R_N_D_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_R_N_B_PROGRAM)/100);
totalCoinsAvailable = 0;
break; //ICO ended
}
stages[currentStage].numCoinsStart = totalCoinsAvailable;
if ( currentStage > 0 ) {
//Move all left tokens to last stage
stages[(stages.length - 1)].coinsAvailable += stages[ (currentStage - 1 ) ].coinsAvailable;
StageUpdated(stages[currentStage - 1].name, stages[currentStage].name);
}
} else {
break;
}
}
}
function getTotalCoinsAvailable()
public
view
returns(uint)
{
return totalCoinsAvailable;
}
function getAvailableCoinsForCurrentStage()
public
view
returns(uint)
{
TokenStage memory stage = stages[currentStage];
return stage.coinsAvailable;
}
//------------- ERC20 methods -------------//
function totalSupply()
public
constant
returns (uint256)
{
return _totalSupply;
}
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint256 balance)
{
return balances[_owner];
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_to)
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
onlyAfterICO
isFreezedReserve(_from)
isFreezedReserve(_to)
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_spender)
returns (bool success)
{
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint256 remaining)
{
return allowed[_owner][_spender];
}
//------------- ERC20 Methods END -------------//
//Returns bonus for certain level of reference
function calculateReferralBonus(uint amount, uint level)
public
pure
returns (uint bonus)
{
bonus = 0;
if ( level == 1 ) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL1 ) / 100 );
} else if (level == 2) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL2 ) / 100 );
} else if (level == 3) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL3 ) / 100 );
} else if (level == 4) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL4 ) / 100 );
} else if (level == 5) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL5 ) / 100 );
}
}
function calculateBonus(uint amountOfTokens)
public
view
returns (uint)
{
return ( ( stages[currentStage].bonus * amountOfTokens ) / 100 );
}
event TokenPurchased(string stage, uint valueSubmitted, uint valueRefunded, uint tokensPurchased);
function ()
public
payable
notAdministrator
onlyDuringICO
meetTheCap
{
_proceedStage();
require(currentStage < stages.length);
require(stages[currentStage].startsAt <= now && now < stages[currentStage].endsAt);
require(getAvailableCoinsForCurrentStage() > 0);
uint requestedAmountOfTokens = ( ( msg.value * accuracy ) / price );
uint amountToBuy = requestedAmountOfTokens;
uint refund = 0;
if ( amountToBuy > getAvailableCoinsForCurrentStage() ) {
amountToBuy = getAvailableCoinsForCurrentStage();
refund = ( ( (requestedAmountOfTokens - amountToBuy) / accuracy ) * price );
// Returning ETH
msg.sender.transfer( refund );
}
TokenPurchased(stages[currentStage].name, msg.value, refund, amountToBuy);
stages[currentStage].coinsAvailable -= amountToBuy;
stages[currentStage].balance += (msg.value - refund);
uint amountDelivered = amountToBuy + calculateBonus(amountToBuy);
balances[msg.sender] += amountDelivered;
totalCoinsAvailable -= amountDelivered;
if ( getAvailableCoinsForCurrentStage() == 0 ) {
_proceedStage();
}
STORAGE_WALLET.transfer(this.balance);
}
//It doesn't really close the stage
//It just needed to push transaction to update stage and update block.now
function closeStage()
public
onlyAdministrator
{
_proceedStage();
}
}
|
balanceOf
|
function balanceOf(address _owner)
public
constant
returns (uint256 balance)
{
return balances[_owner];
}
|
// What is the balance of a particular account?
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
11858,
12014
]
}
| 54,613 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UnilotToken
|
contract UnilotToken is ERC20 {
struct TokenStage {
string name;
uint numCoinsStart;
uint coinsAvailable;
uint bonus;
uint startsAt;
uint endsAt;
uint balance; //Amount of ether sent during this stage
}
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//This one duplicates the above but will have to use it because of
//solidity bug with power operation
uint public constant accuracy = 1000000000000000000;
//500 mln tokens
uint256 internal _totalSupply = 500 * (10**6) * accuracy;
//Public investor can buy tokens for 30 ether at maximum
uint256 public constant singleInvestorCap = 30 ether; //30 ether
//Distribution units
uint public constant DST_ICO = 62; //62%
uint public constant DST_RESERVE = 10; //10%
uint public constant DST_BOUNTY = 3; //3%
//Referral and Bonus Program
uint public constant DST_R_N_B_PROGRAM = 10; //10%
uint public constant DST_ADVISERS = 5; //5%
uint public constant DST_TEAM = 10; //10%
//Referral Bonuses
uint public constant REFERRAL_BONUS_LEVEL1 = 5; //5%
uint public constant REFERRAL_BONUS_LEVEL2 = 4; //4%
uint public constant REFERRAL_BONUS_LEVEL3 = 3; //3%
uint public constant REFERRAL_BONUS_LEVEL4 = 2; //2%
uint public constant REFERRAL_BONUS_LEVEL5 = 1; //1%
//Token amount
//25 mln tokens
uint public constant TOKEN_AMOUNT_PRE_ICO = 25 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4 = 5 * (10**6) * accuracy;
//122.5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5 = 1225 * (10**5) * accuracy;
//265 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE2 = 1425 * (10**5) * accuracy;
uint public constant BONUS_PRE_ICO = 40; //40%
uint public constant BONUS_ICO_STAGE1_PRE_SALE1 = 35; //35%
uint public constant BONUS_ICO_STAGE1_PRE_SALE2 = 30; //30%
uint public constant BONUS_ICO_STAGE1_PRE_SALE3 = 25; //25%
uint public constant BONUS_ICO_STAGE1_PRE_SALE4 = 20; //20%
uint public constant BONUS_ICO_STAGE1_PRE_SALE5 = 0; //0%
uint public constant BONUS_ICO_STAGE2 = 0; //No bonus
//Token Price on Coin Offer
uint256 public constant price = 79 szabo; //0.000079 ETH
address public constant ADVISORS_WALLET = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
address public constant RESERVE_WALLET = 0x731B47847352fA2cFf83D5251FD6a5266f90878d;
address public constant BOUNTY_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant R_N_D_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant STORAGE_WALLET = 0xE2A8F147fc808738Cab152b01C7245F386fD8d89;
// Owner of this contract
address public administrator;
// Balances for each account
mapping(address => uint256) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) allowed;
//Mostly needed for internal use
uint256 internal totalCoinsAvailable;
//All token stages. Total 6 stages
TokenStage[7] stages;
//Index of current stage in stage array
uint currentStage;
//Enables or disables debug mode. Debug mode is set only in constructor.
bool isDebug = false;
event StageUpdated(string from, string to);
// Functions with this modifier can only be executed by the owner
modifier onlyAdministrator() {
require(msg.sender == administrator);
_;
}
modifier notAdministrator() {
require(msg.sender != administrator);
_;
}
modifier onlyDuringICO() {
require(currentStage < stages.length);
_;
}
modifier onlyAfterICO(){
require(currentStage >= stages.length);
_;
}
modifier meetTheCap() {
require(msg.value >= price); // At least one token
_;
}
modifier isFreezedReserve(address _address) {
require( ( _address == RESERVE_WALLET ) && now > (stages[ (stages.length - 1) ].endsAt + 182 days));
_;
}
// Constructor
function UnilotToken()
public
{
administrator = msg.sender;
totalCoinsAvailable = _totalSupply;
//Was as fn parameter for debugging
isDebug = false;
_setupStages();
_proceedStage();
}
function prealocateCoins()
public
onlyAdministrator
{
totalCoinsAvailable -= balances[ADVISORS_WALLET] += ( ( _totalSupply * DST_ADVISERS ) / 100 );
totalCoinsAvailable -= balances[RESERVE_WALLET] += ( ( _totalSupply * DST_RESERVE ) / 100 );
address[7] memory teamWallets = getTeamWallets();
uint teamSupply = ( ( _totalSupply * DST_TEAM ) / 100 );
uint memberAmount = teamSupply / teamWallets.length;
for(uint i = 0; i < teamWallets.length; i++) {
if ( i == ( teamWallets.length - 1 ) ) {
memberAmount = teamSupply;
}
balances[teamWallets[i]] += memberAmount;
teamSupply -= memberAmount;
totalCoinsAvailable -= memberAmount;
}
}
function getTeamWallets()
public
pure
returns (address[7] memory result)
{
result[0] = 0x40e3D8fFc46d73Ab5DF878C751D813a4cB7B388D;
result[1] = 0x5E065a80f6635B6a46323e3383057cE6051aAcA0;
result[2] = 0x0cF3585FbAB2a1299F8347a9B87CF7B4fcdCE599;
result[3] = 0x5fDd3BA5B6Ff349d31eB0a72A953E454C99494aC;
result[4] = 0xC9be9818eE1B2cCf2E4f669d24eB0798390Ffb54;
result[5] = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
result[6] = 0xd13289203889bD898d49e31a1500388441C03663;
}
function _setupStages()
internal
{
//Presale stage
stages[0].name = 'Presale stage';
stages[0].numCoinsStart = totalCoinsAvailable;
stages[0].coinsAvailable = TOKEN_AMOUNT_PRE_ICO;
stages[0].bonus = BONUS_PRE_ICO;
if (isDebug) {
stages[0].startsAt = now;
stages[0].endsAt = stages[0].startsAt + 30 seconds;
} else {
stages[0].startsAt = 1515610800; //10th of January 2018 at 19:00UTC
stages[0].endsAt = 1518894000; //17th of February 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 1
stages[1].name = 'ICO Stage 1 pre-sale 1';
stages[1].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1;
stages[1].bonus = BONUS_ICO_STAGE1_PRE_SALE1;
if (isDebug) {
stages[1].startsAt = stages[0].endsAt;
stages[1].endsAt = stages[1].startsAt + 30 seconds;
} else {
stages[1].startsAt = 1519326000; //22th of February 2018 at 19:00UTC
stages[1].endsAt = 1521745200; //22th of March 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 2
stages[2].name = 'ICO Stage 1 pre-sale 2';
stages[2].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2;
stages[2].bonus = BONUS_ICO_STAGE1_PRE_SALE2;
stages[2].startsAt = stages[1].startsAt;
stages[2].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 3
stages[3].name = 'ICO Stage 1 pre-sale 3';
stages[3].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3;
stages[3].bonus = BONUS_ICO_STAGE1_PRE_SALE3;
stages[3].startsAt = stages[1].startsAt;
stages[3].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 4
stages[4].name = 'ICO Stage 1 pre-sale 4';
stages[4].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4;
stages[4].bonus = BONUS_ICO_STAGE1_PRE_SALE4;
stages[4].startsAt = stages[1].startsAt;
stages[4].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 5
stages[5].name = 'ICO Stage 1 pre-sale 5';
stages[5].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5;
stages[5].bonus = BONUS_ICO_STAGE1_PRE_SALE5;
stages[5].startsAt = stages[1].startsAt;
stages[5].endsAt = stages[1].endsAt;
//ICO Stage 2
stages[6].name = 'ICO Stage 2';
stages[6].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE2;
stages[6].bonus = BONUS_ICO_STAGE2;
if (isDebug) {
stages[6].startsAt = stages[5].endsAt;
stages[6].endsAt = stages[6].startsAt + 30 seconds;
} else {
stages[6].startsAt = 1524250800; //20th of April 2018 at 19:00UTC
stages[6].endsAt = 1526842800; //20th of May 2018 at 19:00UTC
}
}
function _proceedStage()
internal
{
while (true) {
if ( currentStage < stages.length
&& (now >= stages[currentStage].endsAt || getAvailableCoinsForCurrentStage() == 0) ) {
currentStage++;
uint totalTokensForSale = TOKEN_AMOUNT_PRE_ICO
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4
+ TOKEN_AMOUNT_ICO_STAGE2;
if (currentStage >= stages.length) {
//Burning all unsold tokens and proportionally other for deligation
_totalSupply -= ( ( ( stages[(stages.length - 1)].coinsAvailable * DST_BOUNTY ) / 100 )
+ ( ( stages[(stages.length - 1)].coinsAvailable * DST_R_N_B_PROGRAM ) / 100 ) );
balances[BOUNTY_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_BOUNTY)/100);
balances[R_N_D_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_R_N_B_PROGRAM)/100);
totalCoinsAvailable = 0;
break; //ICO ended
}
stages[currentStage].numCoinsStart = totalCoinsAvailable;
if ( currentStage > 0 ) {
//Move all left tokens to last stage
stages[(stages.length - 1)].coinsAvailable += stages[ (currentStage - 1 ) ].coinsAvailable;
StageUpdated(stages[currentStage - 1].name, stages[currentStage].name);
}
} else {
break;
}
}
}
function getTotalCoinsAvailable()
public
view
returns(uint)
{
return totalCoinsAvailable;
}
function getAvailableCoinsForCurrentStage()
public
view
returns(uint)
{
TokenStage memory stage = stages[currentStage];
return stage.coinsAvailable;
}
//------------- ERC20 methods -------------//
function totalSupply()
public
constant
returns (uint256)
{
return _totalSupply;
}
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint256 balance)
{
return balances[_owner];
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_to)
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
onlyAfterICO
isFreezedReserve(_from)
isFreezedReserve(_to)
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_spender)
returns (bool success)
{
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint256 remaining)
{
return allowed[_owner][_spender];
}
//------------- ERC20 Methods END -------------//
//Returns bonus for certain level of reference
function calculateReferralBonus(uint amount, uint level)
public
pure
returns (uint bonus)
{
bonus = 0;
if ( level == 1 ) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL1 ) / 100 );
} else if (level == 2) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL2 ) / 100 );
} else if (level == 3) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL3 ) / 100 );
} else if (level == 4) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL4 ) / 100 );
} else if (level == 5) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL5 ) / 100 );
}
}
function calculateBonus(uint amountOfTokens)
public
view
returns (uint)
{
return ( ( stages[currentStage].bonus * amountOfTokens ) / 100 );
}
event TokenPurchased(string stage, uint valueSubmitted, uint valueRefunded, uint tokensPurchased);
function ()
public
payable
notAdministrator
onlyDuringICO
meetTheCap
{
_proceedStage();
require(currentStage < stages.length);
require(stages[currentStage].startsAt <= now && now < stages[currentStage].endsAt);
require(getAvailableCoinsForCurrentStage() > 0);
uint requestedAmountOfTokens = ( ( msg.value * accuracy ) / price );
uint amountToBuy = requestedAmountOfTokens;
uint refund = 0;
if ( amountToBuy > getAvailableCoinsForCurrentStage() ) {
amountToBuy = getAvailableCoinsForCurrentStage();
refund = ( ( (requestedAmountOfTokens - amountToBuy) / accuracy ) * price );
// Returning ETH
msg.sender.transfer( refund );
}
TokenPurchased(stages[currentStage].name, msg.value, refund, amountToBuy);
stages[currentStage].coinsAvailable -= amountToBuy;
stages[currentStage].balance += (msg.value - refund);
uint amountDelivered = amountToBuy + calculateBonus(amountToBuy);
balances[msg.sender] += amountDelivered;
totalCoinsAvailable -= amountDelivered;
if ( getAvailableCoinsForCurrentStage() == 0 ) {
_proceedStage();
}
STORAGE_WALLET.transfer(this.balance);
}
//It doesn't really close the stage
//It just needed to push transaction to update stage and update block.now
function closeStage()
public
onlyAdministrator
{
_proceedStage();
}
}
|
transfer
|
function transfer(address _to, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_to)
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
|
// Transfer the balance from owner's account to another account
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
12088,
12605
]
}
| 54,614 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UnilotToken
|
contract UnilotToken is ERC20 {
struct TokenStage {
string name;
uint numCoinsStart;
uint coinsAvailable;
uint bonus;
uint startsAt;
uint endsAt;
uint balance; //Amount of ether sent during this stage
}
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//This one duplicates the above but will have to use it because of
//solidity bug with power operation
uint public constant accuracy = 1000000000000000000;
//500 mln tokens
uint256 internal _totalSupply = 500 * (10**6) * accuracy;
//Public investor can buy tokens for 30 ether at maximum
uint256 public constant singleInvestorCap = 30 ether; //30 ether
//Distribution units
uint public constant DST_ICO = 62; //62%
uint public constant DST_RESERVE = 10; //10%
uint public constant DST_BOUNTY = 3; //3%
//Referral and Bonus Program
uint public constant DST_R_N_B_PROGRAM = 10; //10%
uint public constant DST_ADVISERS = 5; //5%
uint public constant DST_TEAM = 10; //10%
//Referral Bonuses
uint public constant REFERRAL_BONUS_LEVEL1 = 5; //5%
uint public constant REFERRAL_BONUS_LEVEL2 = 4; //4%
uint public constant REFERRAL_BONUS_LEVEL3 = 3; //3%
uint public constant REFERRAL_BONUS_LEVEL4 = 2; //2%
uint public constant REFERRAL_BONUS_LEVEL5 = 1; //1%
//Token amount
//25 mln tokens
uint public constant TOKEN_AMOUNT_PRE_ICO = 25 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4 = 5 * (10**6) * accuracy;
//122.5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5 = 1225 * (10**5) * accuracy;
//265 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE2 = 1425 * (10**5) * accuracy;
uint public constant BONUS_PRE_ICO = 40; //40%
uint public constant BONUS_ICO_STAGE1_PRE_SALE1 = 35; //35%
uint public constant BONUS_ICO_STAGE1_PRE_SALE2 = 30; //30%
uint public constant BONUS_ICO_STAGE1_PRE_SALE3 = 25; //25%
uint public constant BONUS_ICO_STAGE1_PRE_SALE4 = 20; //20%
uint public constant BONUS_ICO_STAGE1_PRE_SALE5 = 0; //0%
uint public constant BONUS_ICO_STAGE2 = 0; //No bonus
//Token Price on Coin Offer
uint256 public constant price = 79 szabo; //0.000079 ETH
address public constant ADVISORS_WALLET = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
address public constant RESERVE_WALLET = 0x731B47847352fA2cFf83D5251FD6a5266f90878d;
address public constant BOUNTY_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant R_N_D_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant STORAGE_WALLET = 0xE2A8F147fc808738Cab152b01C7245F386fD8d89;
// Owner of this contract
address public administrator;
// Balances for each account
mapping(address => uint256) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) allowed;
//Mostly needed for internal use
uint256 internal totalCoinsAvailable;
//All token stages. Total 6 stages
TokenStage[7] stages;
//Index of current stage in stage array
uint currentStage;
//Enables or disables debug mode. Debug mode is set only in constructor.
bool isDebug = false;
event StageUpdated(string from, string to);
// Functions with this modifier can only be executed by the owner
modifier onlyAdministrator() {
require(msg.sender == administrator);
_;
}
modifier notAdministrator() {
require(msg.sender != administrator);
_;
}
modifier onlyDuringICO() {
require(currentStage < stages.length);
_;
}
modifier onlyAfterICO(){
require(currentStage >= stages.length);
_;
}
modifier meetTheCap() {
require(msg.value >= price); // At least one token
_;
}
modifier isFreezedReserve(address _address) {
require( ( _address == RESERVE_WALLET ) && now > (stages[ (stages.length - 1) ].endsAt + 182 days));
_;
}
// Constructor
function UnilotToken()
public
{
administrator = msg.sender;
totalCoinsAvailable = _totalSupply;
//Was as fn parameter for debugging
isDebug = false;
_setupStages();
_proceedStage();
}
function prealocateCoins()
public
onlyAdministrator
{
totalCoinsAvailable -= balances[ADVISORS_WALLET] += ( ( _totalSupply * DST_ADVISERS ) / 100 );
totalCoinsAvailable -= balances[RESERVE_WALLET] += ( ( _totalSupply * DST_RESERVE ) / 100 );
address[7] memory teamWallets = getTeamWallets();
uint teamSupply = ( ( _totalSupply * DST_TEAM ) / 100 );
uint memberAmount = teamSupply / teamWallets.length;
for(uint i = 0; i < teamWallets.length; i++) {
if ( i == ( teamWallets.length - 1 ) ) {
memberAmount = teamSupply;
}
balances[teamWallets[i]] += memberAmount;
teamSupply -= memberAmount;
totalCoinsAvailable -= memberAmount;
}
}
function getTeamWallets()
public
pure
returns (address[7] memory result)
{
result[0] = 0x40e3D8fFc46d73Ab5DF878C751D813a4cB7B388D;
result[1] = 0x5E065a80f6635B6a46323e3383057cE6051aAcA0;
result[2] = 0x0cF3585FbAB2a1299F8347a9B87CF7B4fcdCE599;
result[3] = 0x5fDd3BA5B6Ff349d31eB0a72A953E454C99494aC;
result[4] = 0xC9be9818eE1B2cCf2E4f669d24eB0798390Ffb54;
result[5] = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
result[6] = 0xd13289203889bD898d49e31a1500388441C03663;
}
function _setupStages()
internal
{
//Presale stage
stages[0].name = 'Presale stage';
stages[0].numCoinsStart = totalCoinsAvailable;
stages[0].coinsAvailable = TOKEN_AMOUNT_PRE_ICO;
stages[0].bonus = BONUS_PRE_ICO;
if (isDebug) {
stages[0].startsAt = now;
stages[0].endsAt = stages[0].startsAt + 30 seconds;
} else {
stages[0].startsAt = 1515610800; //10th of January 2018 at 19:00UTC
stages[0].endsAt = 1518894000; //17th of February 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 1
stages[1].name = 'ICO Stage 1 pre-sale 1';
stages[1].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1;
stages[1].bonus = BONUS_ICO_STAGE1_PRE_SALE1;
if (isDebug) {
stages[1].startsAt = stages[0].endsAt;
stages[1].endsAt = stages[1].startsAt + 30 seconds;
} else {
stages[1].startsAt = 1519326000; //22th of February 2018 at 19:00UTC
stages[1].endsAt = 1521745200; //22th of March 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 2
stages[2].name = 'ICO Stage 1 pre-sale 2';
stages[2].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2;
stages[2].bonus = BONUS_ICO_STAGE1_PRE_SALE2;
stages[2].startsAt = stages[1].startsAt;
stages[2].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 3
stages[3].name = 'ICO Stage 1 pre-sale 3';
stages[3].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3;
stages[3].bonus = BONUS_ICO_STAGE1_PRE_SALE3;
stages[3].startsAt = stages[1].startsAt;
stages[3].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 4
stages[4].name = 'ICO Stage 1 pre-sale 4';
stages[4].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4;
stages[4].bonus = BONUS_ICO_STAGE1_PRE_SALE4;
stages[4].startsAt = stages[1].startsAt;
stages[4].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 5
stages[5].name = 'ICO Stage 1 pre-sale 5';
stages[5].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5;
stages[5].bonus = BONUS_ICO_STAGE1_PRE_SALE5;
stages[5].startsAt = stages[1].startsAt;
stages[5].endsAt = stages[1].endsAt;
//ICO Stage 2
stages[6].name = 'ICO Stage 2';
stages[6].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE2;
stages[6].bonus = BONUS_ICO_STAGE2;
if (isDebug) {
stages[6].startsAt = stages[5].endsAt;
stages[6].endsAt = stages[6].startsAt + 30 seconds;
} else {
stages[6].startsAt = 1524250800; //20th of April 2018 at 19:00UTC
stages[6].endsAt = 1526842800; //20th of May 2018 at 19:00UTC
}
}
function _proceedStage()
internal
{
while (true) {
if ( currentStage < stages.length
&& (now >= stages[currentStage].endsAt || getAvailableCoinsForCurrentStage() == 0) ) {
currentStage++;
uint totalTokensForSale = TOKEN_AMOUNT_PRE_ICO
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4
+ TOKEN_AMOUNT_ICO_STAGE2;
if (currentStage >= stages.length) {
//Burning all unsold tokens and proportionally other for deligation
_totalSupply -= ( ( ( stages[(stages.length - 1)].coinsAvailable * DST_BOUNTY ) / 100 )
+ ( ( stages[(stages.length - 1)].coinsAvailable * DST_R_N_B_PROGRAM ) / 100 ) );
balances[BOUNTY_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_BOUNTY)/100);
balances[R_N_D_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_R_N_B_PROGRAM)/100);
totalCoinsAvailable = 0;
break; //ICO ended
}
stages[currentStage].numCoinsStart = totalCoinsAvailable;
if ( currentStage > 0 ) {
//Move all left tokens to last stage
stages[(stages.length - 1)].coinsAvailable += stages[ (currentStage - 1 ) ].coinsAvailable;
StageUpdated(stages[currentStage - 1].name, stages[currentStage].name);
}
} else {
break;
}
}
}
function getTotalCoinsAvailable()
public
view
returns(uint)
{
return totalCoinsAvailable;
}
function getAvailableCoinsForCurrentStage()
public
view
returns(uint)
{
TokenStage memory stage = stages[currentStage];
return stage.coinsAvailable;
}
//------------- ERC20 methods -------------//
function totalSupply()
public
constant
returns (uint256)
{
return _totalSupply;
}
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint256 balance)
{
return balances[_owner];
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_to)
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
onlyAfterICO
isFreezedReserve(_from)
isFreezedReserve(_to)
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_spender)
returns (bool success)
{
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint256 remaining)
{
return allowed[_owner][_spender];
}
//------------- ERC20 Methods END -------------//
//Returns bonus for certain level of reference
function calculateReferralBonus(uint amount, uint level)
public
pure
returns (uint bonus)
{
bonus = 0;
if ( level == 1 ) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL1 ) / 100 );
} else if (level == 2) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL2 ) / 100 );
} else if (level == 3) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL3 ) / 100 );
} else if (level == 4) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL4 ) / 100 );
} else if (level == 5) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL5 ) / 100 );
}
}
function calculateBonus(uint amountOfTokens)
public
view
returns (uint)
{
return ( ( stages[currentStage].bonus * amountOfTokens ) / 100 );
}
event TokenPurchased(string stage, uint valueSubmitted, uint valueRefunded, uint tokensPurchased);
function ()
public
payable
notAdministrator
onlyDuringICO
meetTheCap
{
_proceedStage();
require(currentStage < stages.length);
require(stages[currentStage].startsAt <= now && now < stages[currentStage].endsAt);
require(getAvailableCoinsForCurrentStage() > 0);
uint requestedAmountOfTokens = ( ( msg.value * accuracy ) / price );
uint amountToBuy = requestedAmountOfTokens;
uint refund = 0;
if ( amountToBuy > getAvailableCoinsForCurrentStage() ) {
amountToBuy = getAvailableCoinsForCurrentStage();
refund = ( ( (requestedAmountOfTokens - amountToBuy) / accuracy ) * price );
// Returning ETH
msg.sender.transfer( refund );
}
TokenPurchased(stages[currentStage].name, msg.value, refund, amountToBuy);
stages[currentStage].coinsAvailable -= amountToBuy;
stages[currentStage].balance += (msg.value - refund);
uint amountDelivered = amountToBuy + calculateBonus(amountToBuy);
balances[msg.sender] += amountDelivered;
totalCoinsAvailable -= amountDelivered;
if ( getAvailableCoinsForCurrentStage() == 0 ) {
_proceedStage();
}
STORAGE_WALLET.transfer(this.balance);
}
//It doesn't really close the stage
//It just needed to push transaction to update stage and update block.now
function closeStage()
public
onlyAdministrator
{
_proceedStage();
}
}
|
transferFrom
|
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
onlyAfterICO
isFreezedReserve(_from)
isFreezedReserve(_to)
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
|
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
13088,
13780
]
}
| 54,615 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UnilotToken
|
contract UnilotToken is ERC20 {
struct TokenStage {
string name;
uint numCoinsStart;
uint coinsAvailable;
uint bonus;
uint startsAt;
uint endsAt;
uint balance; //Amount of ether sent during this stage
}
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//This one duplicates the above but will have to use it because of
//solidity bug with power operation
uint public constant accuracy = 1000000000000000000;
//500 mln tokens
uint256 internal _totalSupply = 500 * (10**6) * accuracy;
//Public investor can buy tokens for 30 ether at maximum
uint256 public constant singleInvestorCap = 30 ether; //30 ether
//Distribution units
uint public constant DST_ICO = 62; //62%
uint public constant DST_RESERVE = 10; //10%
uint public constant DST_BOUNTY = 3; //3%
//Referral and Bonus Program
uint public constant DST_R_N_B_PROGRAM = 10; //10%
uint public constant DST_ADVISERS = 5; //5%
uint public constant DST_TEAM = 10; //10%
//Referral Bonuses
uint public constant REFERRAL_BONUS_LEVEL1 = 5; //5%
uint public constant REFERRAL_BONUS_LEVEL2 = 4; //4%
uint public constant REFERRAL_BONUS_LEVEL3 = 3; //3%
uint public constant REFERRAL_BONUS_LEVEL4 = 2; //2%
uint public constant REFERRAL_BONUS_LEVEL5 = 1; //1%
//Token amount
//25 mln tokens
uint public constant TOKEN_AMOUNT_PRE_ICO = 25 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4 = 5 * (10**6) * accuracy;
//122.5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5 = 1225 * (10**5) * accuracy;
//265 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE2 = 1425 * (10**5) * accuracy;
uint public constant BONUS_PRE_ICO = 40; //40%
uint public constant BONUS_ICO_STAGE1_PRE_SALE1 = 35; //35%
uint public constant BONUS_ICO_STAGE1_PRE_SALE2 = 30; //30%
uint public constant BONUS_ICO_STAGE1_PRE_SALE3 = 25; //25%
uint public constant BONUS_ICO_STAGE1_PRE_SALE4 = 20; //20%
uint public constant BONUS_ICO_STAGE1_PRE_SALE5 = 0; //0%
uint public constant BONUS_ICO_STAGE2 = 0; //No bonus
//Token Price on Coin Offer
uint256 public constant price = 79 szabo; //0.000079 ETH
address public constant ADVISORS_WALLET = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
address public constant RESERVE_WALLET = 0x731B47847352fA2cFf83D5251FD6a5266f90878d;
address public constant BOUNTY_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant R_N_D_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant STORAGE_WALLET = 0xE2A8F147fc808738Cab152b01C7245F386fD8d89;
// Owner of this contract
address public administrator;
// Balances for each account
mapping(address => uint256) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) allowed;
//Mostly needed for internal use
uint256 internal totalCoinsAvailable;
//All token stages. Total 6 stages
TokenStage[7] stages;
//Index of current stage in stage array
uint currentStage;
//Enables or disables debug mode. Debug mode is set only in constructor.
bool isDebug = false;
event StageUpdated(string from, string to);
// Functions with this modifier can only be executed by the owner
modifier onlyAdministrator() {
require(msg.sender == administrator);
_;
}
modifier notAdministrator() {
require(msg.sender != administrator);
_;
}
modifier onlyDuringICO() {
require(currentStage < stages.length);
_;
}
modifier onlyAfterICO(){
require(currentStage >= stages.length);
_;
}
modifier meetTheCap() {
require(msg.value >= price); // At least one token
_;
}
modifier isFreezedReserve(address _address) {
require( ( _address == RESERVE_WALLET ) && now > (stages[ (stages.length - 1) ].endsAt + 182 days));
_;
}
// Constructor
function UnilotToken()
public
{
administrator = msg.sender;
totalCoinsAvailable = _totalSupply;
//Was as fn parameter for debugging
isDebug = false;
_setupStages();
_proceedStage();
}
function prealocateCoins()
public
onlyAdministrator
{
totalCoinsAvailable -= balances[ADVISORS_WALLET] += ( ( _totalSupply * DST_ADVISERS ) / 100 );
totalCoinsAvailable -= balances[RESERVE_WALLET] += ( ( _totalSupply * DST_RESERVE ) / 100 );
address[7] memory teamWallets = getTeamWallets();
uint teamSupply = ( ( _totalSupply * DST_TEAM ) / 100 );
uint memberAmount = teamSupply / teamWallets.length;
for(uint i = 0; i < teamWallets.length; i++) {
if ( i == ( teamWallets.length - 1 ) ) {
memberAmount = teamSupply;
}
balances[teamWallets[i]] += memberAmount;
teamSupply -= memberAmount;
totalCoinsAvailable -= memberAmount;
}
}
function getTeamWallets()
public
pure
returns (address[7] memory result)
{
result[0] = 0x40e3D8fFc46d73Ab5DF878C751D813a4cB7B388D;
result[1] = 0x5E065a80f6635B6a46323e3383057cE6051aAcA0;
result[2] = 0x0cF3585FbAB2a1299F8347a9B87CF7B4fcdCE599;
result[3] = 0x5fDd3BA5B6Ff349d31eB0a72A953E454C99494aC;
result[4] = 0xC9be9818eE1B2cCf2E4f669d24eB0798390Ffb54;
result[5] = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
result[6] = 0xd13289203889bD898d49e31a1500388441C03663;
}
function _setupStages()
internal
{
//Presale stage
stages[0].name = 'Presale stage';
stages[0].numCoinsStart = totalCoinsAvailable;
stages[0].coinsAvailable = TOKEN_AMOUNT_PRE_ICO;
stages[0].bonus = BONUS_PRE_ICO;
if (isDebug) {
stages[0].startsAt = now;
stages[0].endsAt = stages[0].startsAt + 30 seconds;
} else {
stages[0].startsAt = 1515610800; //10th of January 2018 at 19:00UTC
stages[0].endsAt = 1518894000; //17th of February 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 1
stages[1].name = 'ICO Stage 1 pre-sale 1';
stages[1].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1;
stages[1].bonus = BONUS_ICO_STAGE1_PRE_SALE1;
if (isDebug) {
stages[1].startsAt = stages[0].endsAt;
stages[1].endsAt = stages[1].startsAt + 30 seconds;
} else {
stages[1].startsAt = 1519326000; //22th of February 2018 at 19:00UTC
stages[1].endsAt = 1521745200; //22th of March 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 2
stages[2].name = 'ICO Stage 1 pre-sale 2';
stages[2].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2;
stages[2].bonus = BONUS_ICO_STAGE1_PRE_SALE2;
stages[2].startsAt = stages[1].startsAt;
stages[2].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 3
stages[3].name = 'ICO Stage 1 pre-sale 3';
stages[3].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3;
stages[3].bonus = BONUS_ICO_STAGE1_PRE_SALE3;
stages[3].startsAt = stages[1].startsAt;
stages[3].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 4
stages[4].name = 'ICO Stage 1 pre-sale 4';
stages[4].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4;
stages[4].bonus = BONUS_ICO_STAGE1_PRE_SALE4;
stages[4].startsAt = stages[1].startsAt;
stages[4].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 5
stages[5].name = 'ICO Stage 1 pre-sale 5';
stages[5].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5;
stages[5].bonus = BONUS_ICO_STAGE1_PRE_SALE5;
stages[5].startsAt = stages[1].startsAt;
stages[5].endsAt = stages[1].endsAt;
//ICO Stage 2
stages[6].name = 'ICO Stage 2';
stages[6].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE2;
stages[6].bonus = BONUS_ICO_STAGE2;
if (isDebug) {
stages[6].startsAt = stages[5].endsAt;
stages[6].endsAt = stages[6].startsAt + 30 seconds;
} else {
stages[6].startsAt = 1524250800; //20th of April 2018 at 19:00UTC
stages[6].endsAt = 1526842800; //20th of May 2018 at 19:00UTC
}
}
function _proceedStage()
internal
{
while (true) {
if ( currentStage < stages.length
&& (now >= stages[currentStage].endsAt || getAvailableCoinsForCurrentStage() == 0) ) {
currentStage++;
uint totalTokensForSale = TOKEN_AMOUNT_PRE_ICO
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4
+ TOKEN_AMOUNT_ICO_STAGE2;
if (currentStage >= stages.length) {
//Burning all unsold tokens and proportionally other for deligation
_totalSupply -= ( ( ( stages[(stages.length - 1)].coinsAvailable * DST_BOUNTY ) / 100 )
+ ( ( stages[(stages.length - 1)].coinsAvailable * DST_R_N_B_PROGRAM ) / 100 ) );
balances[BOUNTY_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_BOUNTY)/100);
balances[R_N_D_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_R_N_B_PROGRAM)/100);
totalCoinsAvailable = 0;
break; //ICO ended
}
stages[currentStage].numCoinsStart = totalCoinsAvailable;
if ( currentStage > 0 ) {
//Move all left tokens to last stage
stages[(stages.length - 1)].coinsAvailable += stages[ (currentStage - 1 ) ].coinsAvailable;
StageUpdated(stages[currentStage - 1].name, stages[currentStage].name);
}
} else {
break;
}
}
}
function getTotalCoinsAvailable()
public
view
returns(uint)
{
return totalCoinsAvailable;
}
function getAvailableCoinsForCurrentStage()
public
view
returns(uint)
{
TokenStage memory stage = stages[currentStage];
return stage.coinsAvailable;
}
//------------- ERC20 methods -------------//
function totalSupply()
public
constant
returns (uint256)
{
return _totalSupply;
}
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint256 balance)
{
return balances[_owner];
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_to)
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
onlyAfterICO
isFreezedReserve(_from)
isFreezedReserve(_to)
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_spender)
returns (bool success)
{
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint256 remaining)
{
return allowed[_owner][_spender];
}
//------------- ERC20 Methods END -------------//
//Returns bonus for certain level of reference
function calculateReferralBonus(uint amount, uint level)
public
pure
returns (uint bonus)
{
bonus = 0;
if ( level == 1 ) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL1 ) / 100 );
} else if (level == 2) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL2 ) / 100 );
} else if (level == 3) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL3 ) / 100 );
} else if (level == 4) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL4 ) / 100 );
} else if (level == 5) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL5 ) / 100 );
}
}
function calculateBonus(uint amountOfTokens)
public
view
returns (uint)
{
return ( ( stages[currentStage].bonus * amountOfTokens ) / 100 );
}
event TokenPurchased(string stage, uint valueSubmitted, uint valueRefunded, uint tokensPurchased);
function ()
public
payable
notAdministrator
onlyDuringICO
meetTheCap
{
_proceedStage();
require(currentStage < stages.length);
require(stages[currentStage].startsAt <= now && now < stages[currentStage].endsAt);
require(getAvailableCoinsForCurrentStage() > 0);
uint requestedAmountOfTokens = ( ( msg.value * accuracy ) / price );
uint amountToBuy = requestedAmountOfTokens;
uint refund = 0;
if ( amountToBuy > getAvailableCoinsForCurrentStage() ) {
amountToBuy = getAvailableCoinsForCurrentStage();
refund = ( ( (requestedAmountOfTokens - amountToBuy) / accuracy ) * price );
// Returning ETH
msg.sender.transfer( refund );
}
TokenPurchased(stages[currentStage].name, msg.value, refund, amountToBuy);
stages[currentStage].coinsAvailable -= amountToBuy;
stages[currentStage].balance += (msg.value - refund);
uint amountDelivered = amountToBuy + calculateBonus(amountToBuy);
balances[msg.sender] += amountDelivered;
totalCoinsAvailable -= amountDelivered;
if ( getAvailableCoinsForCurrentStage() == 0 ) {
_proceedStage();
}
STORAGE_WALLET.transfer(this.balance);
}
//It doesn't really close the stage
//It just needed to push transaction to update stage and update block.now
function closeStage()
public
onlyAdministrator
{
_proceedStage();
}
}
|
approve
|
function approve(address _spender, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_spender)
returns (bool success)
{
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
|
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
13970,
14268
]
}
| 54,616 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UnilotToken
|
contract UnilotToken is ERC20 {
struct TokenStage {
string name;
uint numCoinsStart;
uint coinsAvailable;
uint bonus;
uint startsAt;
uint endsAt;
uint balance; //Amount of ether sent during this stage
}
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//This one duplicates the above but will have to use it because of
//solidity bug with power operation
uint public constant accuracy = 1000000000000000000;
//500 mln tokens
uint256 internal _totalSupply = 500 * (10**6) * accuracy;
//Public investor can buy tokens for 30 ether at maximum
uint256 public constant singleInvestorCap = 30 ether; //30 ether
//Distribution units
uint public constant DST_ICO = 62; //62%
uint public constant DST_RESERVE = 10; //10%
uint public constant DST_BOUNTY = 3; //3%
//Referral and Bonus Program
uint public constant DST_R_N_B_PROGRAM = 10; //10%
uint public constant DST_ADVISERS = 5; //5%
uint public constant DST_TEAM = 10; //10%
//Referral Bonuses
uint public constant REFERRAL_BONUS_LEVEL1 = 5; //5%
uint public constant REFERRAL_BONUS_LEVEL2 = 4; //4%
uint public constant REFERRAL_BONUS_LEVEL3 = 3; //3%
uint public constant REFERRAL_BONUS_LEVEL4 = 2; //2%
uint public constant REFERRAL_BONUS_LEVEL5 = 1; //1%
//Token amount
//25 mln tokens
uint public constant TOKEN_AMOUNT_PRE_ICO = 25 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4 = 5 * (10**6) * accuracy;
//122.5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5 = 1225 * (10**5) * accuracy;
//265 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE2 = 1425 * (10**5) * accuracy;
uint public constant BONUS_PRE_ICO = 40; //40%
uint public constant BONUS_ICO_STAGE1_PRE_SALE1 = 35; //35%
uint public constant BONUS_ICO_STAGE1_PRE_SALE2 = 30; //30%
uint public constant BONUS_ICO_STAGE1_PRE_SALE3 = 25; //25%
uint public constant BONUS_ICO_STAGE1_PRE_SALE4 = 20; //20%
uint public constant BONUS_ICO_STAGE1_PRE_SALE5 = 0; //0%
uint public constant BONUS_ICO_STAGE2 = 0; //No bonus
//Token Price on Coin Offer
uint256 public constant price = 79 szabo; //0.000079 ETH
address public constant ADVISORS_WALLET = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
address public constant RESERVE_WALLET = 0x731B47847352fA2cFf83D5251FD6a5266f90878d;
address public constant BOUNTY_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant R_N_D_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant STORAGE_WALLET = 0xE2A8F147fc808738Cab152b01C7245F386fD8d89;
// Owner of this contract
address public administrator;
// Balances for each account
mapping(address => uint256) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) allowed;
//Mostly needed for internal use
uint256 internal totalCoinsAvailable;
//All token stages. Total 6 stages
TokenStage[7] stages;
//Index of current stage in stage array
uint currentStage;
//Enables or disables debug mode. Debug mode is set only in constructor.
bool isDebug = false;
event StageUpdated(string from, string to);
// Functions with this modifier can only be executed by the owner
modifier onlyAdministrator() {
require(msg.sender == administrator);
_;
}
modifier notAdministrator() {
require(msg.sender != administrator);
_;
}
modifier onlyDuringICO() {
require(currentStage < stages.length);
_;
}
modifier onlyAfterICO(){
require(currentStage >= stages.length);
_;
}
modifier meetTheCap() {
require(msg.value >= price); // At least one token
_;
}
modifier isFreezedReserve(address _address) {
require( ( _address == RESERVE_WALLET ) && now > (stages[ (stages.length - 1) ].endsAt + 182 days));
_;
}
// Constructor
function UnilotToken()
public
{
administrator = msg.sender;
totalCoinsAvailable = _totalSupply;
//Was as fn parameter for debugging
isDebug = false;
_setupStages();
_proceedStage();
}
function prealocateCoins()
public
onlyAdministrator
{
totalCoinsAvailable -= balances[ADVISORS_WALLET] += ( ( _totalSupply * DST_ADVISERS ) / 100 );
totalCoinsAvailable -= balances[RESERVE_WALLET] += ( ( _totalSupply * DST_RESERVE ) / 100 );
address[7] memory teamWallets = getTeamWallets();
uint teamSupply = ( ( _totalSupply * DST_TEAM ) / 100 );
uint memberAmount = teamSupply / teamWallets.length;
for(uint i = 0; i < teamWallets.length; i++) {
if ( i == ( teamWallets.length - 1 ) ) {
memberAmount = teamSupply;
}
balances[teamWallets[i]] += memberAmount;
teamSupply -= memberAmount;
totalCoinsAvailable -= memberAmount;
}
}
function getTeamWallets()
public
pure
returns (address[7] memory result)
{
result[0] = 0x40e3D8fFc46d73Ab5DF878C751D813a4cB7B388D;
result[1] = 0x5E065a80f6635B6a46323e3383057cE6051aAcA0;
result[2] = 0x0cF3585FbAB2a1299F8347a9B87CF7B4fcdCE599;
result[3] = 0x5fDd3BA5B6Ff349d31eB0a72A953E454C99494aC;
result[4] = 0xC9be9818eE1B2cCf2E4f669d24eB0798390Ffb54;
result[5] = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
result[6] = 0xd13289203889bD898d49e31a1500388441C03663;
}
function _setupStages()
internal
{
//Presale stage
stages[0].name = 'Presale stage';
stages[0].numCoinsStart = totalCoinsAvailable;
stages[0].coinsAvailable = TOKEN_AMOUNT_PRE_ICO;
stages[0].bonus = BONUS_PRE_ICO;
if (isDebug) {
stages[0].startsAt = now;
stages[0].endsAt = stages[0].startsAt + 30 seconds;
} else {
stages[0].startsAt = 1515610800; //10th of January 2018 at 19:00UTC
stages[0].endsAt = 1518894000; //17th of February 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 1
stages[1].name = 'ICO Stage 1 pre-sale 1';
stages[1].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1;
stages[1].bonus = BONUS_ICO_STAGE1_PRE_SALE1;
if (isDebug) {
stages[1].startsAt = stages[0].endsAt;
stages[1].endsAt = stages[1].startsAt + 30 seconds;
} else {
stages[1].startsAt = 1519326000; //22th of February 2018 at 19:00UTC
stages[1].endsAt = 1521745200; //22th of March 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 2
stages[2].name = 'ICO Stage 1 pre-sale 2';
stages[2].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2;
stages[2].bonus = BONUS_ICO_STAGE1_PRE_SALE2;
stages[2].startsAt = stages[1].startsAt;
stages[2].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 3
stages[3].name = 'ICO Stage 1 pre-sale 3';
stages[3].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3;
stages[3].bonus = BONUS_ICO_STAGE1_PRE_SALE3;
stages[3].startsAt = stages[1].startsAt;
stages[3].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 4
stages[4].name = 'ICO Stage 1 pre-sale 4';
stages[4].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4;
stages[4].bonus = BONUS_ICO_STAGE1_PRE_SALE4;
stages[4].startsAt = stages[1].startsAt;
stages[4].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 5
stages[5].name = 'ICO Stage 1 pre-sale 5';
stages[5].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5;
stages[5].bonus = BONUS_ICO_STAGE1_PRE_SALE5;
stages[5].startsAt = stages[1].startsAt;
stages[5].endsAt = stages[1].endsAt;
//ICO Stage 2
stages[6].name = 'ICO Stage 2';
stages[6].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE2;
stages[6].bonus = BONUS_ICO_STAGE2;
if (isDebug) {
stages[6].startsAt = stages[5].endsAt;
stages[6].endsAt = stages[6].startsAt + 30 seconds;
} else {
stages[6].startsAt = 1524250800; //20th of April 2018 at 19:00UTC
stages[6].endsAt = 1526842800; //20th of May 2018 at 19:00UTC
}
}
function _proceedStage()
internal
{
while (true) {
if ( currentStage < stages.length
&& (now >= stages[currentStage].endsAt || getAvailableCoinsForCurrentStage() == 0) ) {
currentStage++;
uint totalTokensForSale = TOKEN_AMOUNT_PRE_ICO
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4
+ TOKEN_AMOUNT_ICO_STAGE2;
if (currentStage >= stages.length) {
//Burning all unsold tokens and proportionally other for deligation
_totalSupply -= ( ( ( stages[(stages.length - 1)].coinsAvailable * DST_BOUNTY ) / 100 )
+ ( ( stages[(stages.length - 1)].coinsAvailable * DST_R_N_B_PROGRAM ) / 100 ) );
balances[BOUNTY_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_BOUNTY)/100);
balances[R_N_D_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_R_N_B_PROGRAM)/100);
totalCoinsAvailable = 0;
break; //ICO ended
}
stages[currentStage].numCoinsStart = totalCoinsAvailable;
if ( currentStage > 0 ) {
//Move all left tokens to last stage
stages[(stages.length - 1)].coinsAvailable += stages[ (currentStage - 1 ) ].coinsAvailable;
StageUpdated(stages[currentStage - 1].name, stages[currentStage].name);
}
} else {
break;
}
}
}
function getTotalCoinsAvailable()
public
view
returns(uint)
{
return totalCoinsAvailable;
}
function getAvailableCoinsForCurrentStage()
public
view
returns(uint)
{
TokenStage memory stage = stages[currentStage];
return stage.coinsAvailable;
}
//------------- ERC20 methods -------------//
function totalSupply()
public
constant
returns (uint256)
{
return _totalSupply;
}
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint256 balance)
{
return balances[_owner];
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_to)
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
onlyAfterICO
isFreezedReserve(_from)
isFreezedReserve(_to)
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_spender)
returns (bool success)
{
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint256 remaining)
{
return allowed[_owner][_spender];
}
//------------- ERC20 Methods END -------------//
//Returns bonus for certain level of reference
function calculateReferralBonus(uint amount, uint level)
public
pure
returns (uint bonus)
{
bonus = 0;
if ( level == 1 ) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL1 ) / 100 );
} else if (level == 2) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL2 ) / 100 );
} else if (level == 3) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL3 ) / 100 );
} else if (level == 4) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL4 ) / 100 );
} else if (level == 5) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL5 ) / 100 );
}
}
function calculateBonus(uint amountOfTokens)
public
view
returns (uint)
{
return ( ( stages[currentStage].bonus * amountOfTokens ) / 100 );
}
event TokenPurchased(string stage, uint valueSubmitted, uint valueRefunded, uint tokensPurchased);
function ()
public
payable
notAdministrator
onlyDuringICO
meetTheCap
{
_proceedStage();
require(currentStage < stages.length);
require(stages[currentStage].startsAt <= now && now < stages[currentStage].endsAt);
require(getAvailableCoinsForCurrentStage() > 0);
uint requestedAmountOfTokens = ( ( msg.value * accuracy ) / price );
uint amountToBuy = requestedAmountOfTokens;
uint refund = 0;
if ( amountToBuy > getAvailableCoinsForCurrentStage() ) {
amountToBuy = getAvailableCoinsForCurrentStage();
refund = ( ( (requestedAmountOfTokens - amountToBuy) / accuracy ) * price );
// Returning ETH
msg.sender.transfer( refund );
}
TokenPurchased(stages[currentStage].name, msg.value, refund, amountToBuy);
stages[currentStage].coinsAvailable -= amountToBuy;
stages[currentStage].balance += (msg.value - refund);
uint amountDelivered = amountToBuy + calculateBonus(amountToBuy);
balances[msg.sender] += amountDelivered;
totalCoinsAvailable -= amountDelivered;
if ( getAvailableCoinsForCurrentStage() == 0 ) {
_proceedStage();
}
STORAGE_WALLET.transfer(this.balance);
}
//It doesn't really close the stage
//It just needed to push transaction to update stage and update block.now
function closeStage()
public
onlyAdministrator
{
_proceedStage();
}
}
|
calculateReferralBonus
|
function calculateReferralBonus(uint amount, uint level)
public
pure
returns (uint bonus)
{
bonus = 0;
if ( level == 1 ) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL1 ) / 100 );
} else if (level == 2) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL2 ) / 100 );
} else if (level == 3) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL3 ) / 100 );
} else if (level == 4) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL4 ) / 100 );
} else if (level == 5) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL5 ) / 100 );
}
}
|
//------------- ERC20 Methods END -------------//
//Returns bonus for certain level of reference
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
14568,
15236
]
}
| 54,617 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UnilotToken
|
contract UnilotToken is ERC20 {
struct TokenStage {
string name;
uint numCoinsStart;
uint coinsAvailable;
uint bonus;
uint startsAt;
uint endsAt;
uint balance; //Amount of ether sent during this stage
}
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//This one duplicates the above but will have to use it because of
//solidity bug with power operation
uint public constant accuracy = 1000000000000000000;
//500 mln tokens
uint256 internal _totalSupply = 500 * (10**6) * accuracy;
//Public investor can buy tokens for 30 ether at maximum
uint256 public constant singleInvestorCap = 30 ether; //30 ether
//Distribution units
uint public constant DST_ICO = 62; //62%
uint public constant DST_RESERVE = 10; //10%
uint public constant DST_BOUNTY = 3; //3%
//Referral and Bonus Program
uint public constant DST_R_N_B_PROGRAM = 10; //10%
uint public constant DST_ADVISERS = 5; //5%
uint public constant DST_TEAM = 10; //10%
//Referral Bonuses
uint public constant REFERRAL_BONUS_LEVEL1 = 5; //5%
uint public constant REFERRAL_BONUS_LEVEL2 = 4; //4%
uint public constant REFERRAL_BONUS_LEVEL3 = 3; //3%
uint public constant REFERRAL_BONUS_LEVEL4 = 2; //2%
uint public constant REFERRAL_BONUS_LEVEL5 = 1; //1%
//Token amount
//25 mln tokens
uint public constant TOKEN_AMOUNT_PRE_ICO = 25 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3 = 5 * (10**6) * accuracy;
//5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4 = 5 * (10**6) * accuracy;
//122.5 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5 = 1225 * (10**5) * accuracy;
//265 mln tokens
uint public constant TOKEN_AMOUNT_ICO_STAGE2 = 1425 * (10**5) * accuracy;
uint public constant BONUS_PRE_ICO = 40; //40%
uint public constant BONUS_ICO_STAGE1_PRE_SALE1 = 35; //35%
uint public constant BONUS_ICO_STAGE1_PRE_SALE2 = 30; //30%
uint public constant BONUS_ICO_STAGE1_PRE_SALE3 = 25; //25%
uint public constant BONUS_ICO_STAGE1_PRE_SALE4 = 20; //20%
uint public constant BONUS_ICO_STAGE1_PRE_SALE5 = 0; //0%
uint public constant BONUS_ICO_STAGE2 = 0; //No bonus
//Token Price on Coin Offer
uint256 public constant price = 79 szabo; //0.000079 ETH
address public constant ADVISORS_WALLET = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
address public constant RESERVE_WALLET = 0x731B47847352fA2cFf83D5251FD6a5266f90878d;
address public constant BOUNTY_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant R_N_D_WALLET = 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb;
address public constant STORAGE_WALLET = 0xE2A8F147fc808738Cab152b01C7245F386fD8d89;
// Owner of this contract
address public administrator;
// Balances for each account
mapping(address => uint256) balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint256)) allowed;
//Mostly needed for internal use
uint256 internal totalCoinsAvailable;
//All token stages. Total 6 stages
TokenStage[7] stages;
//Index of current stage in stage array
uint currentStage;
//Enables or disables debug mode. Debug mode is set only in constructor.
bool isDebug = false;
event StageUpdated(string from, string to);
// Functions with this modifier can only be executed by the owner
modifier onlyAdministrator() {
require(msg.sender == administrator);
_;
}
modifier notAdministrator() {
require(msg.sender != administrator);
_;
}
modifier onlyDuringICO() {
require(currentStage < stages.length);
_;
}
modifier onlyAfterICO(){
require(currentStage >= stages.length);
_;
}
modifier meetTheCap() {
require(msg.value >= price); // At least one token
_;
}
modifier isFreezedReserve(address _address) {
require( ( _address == RESERVE_WALLET ) && now > (stages[ (stages.length - 1) ].endsAt + 182 days));
_;
}
// Constructor
function UnilotToken()
public
{
administrator = msg.sender;
totalCoinsAvailable = _totalSupply;
//Was as fn parameter for debugging
isDebug = false;
_setupStages();
_proceedStage();
}
function prealocateCoins()
public
onlyAdministrator
{
totalCoinsAvailable -= balances[ADVISORS_WALLET] += ( ( _totalSupply * DST_ADVISERS ) / 100 );
totalCoinsAvailable -= balances[RESERVE_WALLET] += ( ( _totalSupply * DST_RESERVE ) / 100 );
address[7] memory teamWallets = getTeamWallets();
uint teamSupply = ( ( _totalSupply * DST_TEAM ) / 100 );
uint memberAmount = teamSupply / teamWallets.length;
for(uint i = 0; i < teamWallets.length; i++) {
if ( i == ( teamWallets.length - 1 ) ) {
memberAmount = teamSupply;
}
balances[teamWallets[i]] += memberAmount;
teamSupply -= memberAmount;
totalCoinsAvailable -= memberAmount;
}
}
function getTeamWallets()
public
pure
returns (address[7] memory result)
{
result[0] = 0x40e3D8fFc46d73Ab5DF878C751D813a4cB7B388D;
result[1] = 0x5E065a80f6635B6a46323e3383057cE6051aAcA0;
result[2] = 0x0cF3585FbAB2a1299F8347a9B87CF7B4fcdCE599;
result[3] = 0x5fDd3BA5B6Ff349d31eB0a72A953E454C99494aC;
result[4] = 0xC9be9818eE1B2cCf2E4f669d24eB0798390Ffb54;
result[5] = 0x77660795BD361Cd43c3627eAdad44dDc2026aD17;
result[6] = 0xd13289203889bD898d49e31a1500388441C03663;
}
function _setupStages()
internal
{
//Presale stage
stages[0].name = 'Presale stage';
stages[0].numCoinsStart = totalCoinsAvailable;
stages[0].coinsAvailable = TOKEN_AMOUNT_PRE_ICO;
stages[0].bonus = BONUS_PRE_ICO;
if (isDebug) {
stages[0].startsAt = now;
stages[0].endsAt = stages[0].startsAt + 30 seconds;
} else {
stages[0].startsAt = 1515610800; //10th of January 2018 at 19:00UTC
stages[0].endsAt = 1518894000; //17th of February 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 1
stages[1].name = 'ICO Stage 1 pre-sale 1';
stages[1].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1;
stages[1].bonus = BONUS_ICO_STAGE1_PRE_SALE1;
if (isDebug) {
stages[1].startsAt = stages[0].endsAt;
stages[1].endsAt = stages[1].startsAt + 30 seconds;
} else {
stages[1].startsAt = 1519326000; //22th of February 2018 at 19:00UTC
stages[1].endsAt = 1521745200; //22th of March 2018 at 19:00UTC
}
//ICO Stage 1 pre-sale 2
stages[2].name = 'ICO Stage 1 pre-sale 2';
stages[2].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2;
stages[2].bonus = BONUS_ICO_STAGE1_PRE_SALE2;
stages[2].startsAt = stages[1].startsAt;
stages[2].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 3
stages[3].name = 'ICO Stage 1 pre-sale 3';
stages[3].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3;
stages[3].bonus = BONUS_ICO_STAGE1_PRE_SALE3;
stages[3].startsAt = stages[1].startsAt;
stages[3].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 4
stages[4].name = 'ICO Stage 1 pre-sale 4';
stages[4].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4;
stages[4].bonus = BONUS_ICO_STAGE1_PRE_SALE4;
stages[4].startsAt = stages[1].startsAt;
stages[4].endsAt = stages[1].endsAt;
//ICO Stage 1 pre-sale 5
stages[5].name = 'ICO Stage 1 pre-sale 5';
stages[5].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE5;
stages[5].bonus = BONUS_ICO_STAGE1_PRE_SALE5;
stages[5].startsAt = stages[1].startsAt;
stages[5].endsAt = stages[1].endsAt;
//ICO Stage 2
stages[6].name = 'ICO Stage 2';
stages[6].coinsAvailable = TOKEN_AMOUNT_ICO_STAGE2;
stages[6].bonus = BONUS_ICO_STAGE2;
if (isDebug) {
stages[6].startsAt = stages[5].endsAt;
stages[6].endsAt = stages[6].startsAt + 30 seconds;
} else {
stages[6].startsAt = 1524250800; //20th of April 2018 at 19:00UTC
stages[6].endsAt = 1526842800; //20th of May 2018 at 19:00UTC
}
}
function _proceedStage()
internal
{
while (true) {
if ( currentStage < stages.length
&& (now >= stages[currentStage].endsAt || getAvailableCoinsForCurrentStage() == 0) ) {
currentStage++;
uint totalTokensForSale = TOKEN_AMOUNT_PRE_ICO
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE1
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE2
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE3
+ TOKEN_AMOUNT_ICO_STAGE1_PRE_SALE4
+ TOKEN_AMOUNT_ICO_STAGE2;
if (currentStage >= stages.length) {
//Burning all unsold tokens and proportionally other for deligation
_totalSupply -= ( ( ( stages[(stages.length - 1)].coinsAvailable * DST_BOUNTY ) / 100 )
+ ( ( stages[(stages.length - 1)].coinsAvailable * DST_R_N_B_PROGRAM ) / 100 ) );
balances[BOUNTY_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_BOUNTY)/100);
balances[R_N_D_WALLET] = (((totalTokensForSale - stages[(stages.length - 1)].coinsAvailable) * DST_R_N_B_PROGRAM)/100);
totalCoinsAvailable = 0;
break; //ICO ended
}
stages[currentStage].numCoinsStart = totalCoinsAvailable;
if ( currentStage > 0 ) {
//Move all left tokens to last stage
stages[(stages.length - 1)].coinsAvailable += stages[ (currentStage - 1 ) ].coinsAvailable;
StageUpdated(stages[currentStage - 1].name, stages[currentStage].name);
}
} else {
break;
}
}
}
function getTotalCoinsAvailable()
public
view
returns(uint)
{
return totalCoinsAvailable;
}
function getAvailableCoinsForCurrentStage()
public
view
returns(uint)
{
TokenStage memory stage = stages[currentStage];
return stage.coinsAvailable;
}
//------------- ERC20 methods -------------//
function totalSupply()
public
constant
returns (uint256)
{
return _totalSupply;
}
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint256 balance)
{
return balances[_owner];
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_to)
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
onlyAfterICO
isFreezedReserve(_from)
isFreezedReserve(_to)
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= _amount;
allowed[_from][msg.sender] -= _amount;
balances[_to] += _amount;
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint256 _amount)
public
onlyAfterICO
isFreezedReserve(_spender)
returns (bool success)
{
allowed[msg.sender][_spender] = _amount;
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint256 remaining)
{
return allowed[_owner][_spender];
}
//------------- ERC20 Methods END -------------//
//Returns bonus for certain level of reference
function calculateReferralBonus(uint amount, uint level)
public
pure
returns (uint bonus)
{
bonus = 0;
if ( level == 1 ) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL1 ) / 100 );
} else if (level == 2) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL2 ) / 100 );
} else if (level == 3) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL3 ) / 100 );
} else if (level == 4) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL4 ) / 100 );
} else if (level == 5) {
bonus = ( ( amount * REFERRAL_BONUS_LEVEL5 ) / 100 );
}
}
function calculateBonus(uint amountOfTokens)
public
view
returns (uint)
{
return ( ( stages[currentStage].bonus * amountOfTokens ) / 100 );
}
event TokenPurchased(string stage, uint valueSubmitted, uint valueRefunded, uint tokensPurchased);
function ()
public
payable
notAdministrator
onlyDuringICO
meetTheCap
{
_proceedStage();
require(currentStage < stages.length);
require(stages[currentStage].startsAt <= now && now < stages[currentStage].endsAt);
require(getAvailableCoinsForCurrentStage() > 0);
uint requestedAmountOfTokens = ( ( msg.value * accuracy ) / price );
uint amountToBuy = requestedAmountOfTokens;
uint refund = 0;
if ( amountToBuy > getAvailableCoinsForCurrentStage() ) {
amountToBuy = getAvailableCoinsForCurrentStage();
refund = ( ( (requestedAmountOfTokens - amountToBuy) / accuracy ) * price );
// Returning ETH
msg.sender.transfer( refund );
}
TokenPurchased(stages[currentStage].name, msg.value, refund, amountToBuy);
stages[currentStage].coinsAvailable -= amountToBuy;
stages[currentStage].balance += (msg.value - refund);
uint amountDelivered = amountToBuy + calculateBonus(amountToBuy);
balances[msg.sender] += amountDelivered;
totalCoinsAvailable -= amountDelivered;
if ( getAvailableCoinsForCurrentStage() == 0 ) {
_proceedStage();
}
STORAGE_WALLET.transfer(this.balance);
}
//It doesn't really close the stage
//It just needed to push transaction to update stage and update block.now
function closeStage()
public
onlyAdministrator
{
_proceedStage();
}
}
|
closeStage
|
function closeStage()
public
onlyAdministrator
{
_proceedStage();
}
|
//It doesn't really close the stage
//It just needed to push transaction to update stage and update block.now
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
17027,
17136
]
}
| 54,618 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
ERC20Contract
|
contract ERC20Contract is ERC20 {
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
// Balances for each account
mapping(address => uint96) public balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint96)) allowed;
function totalSupply()
public
constant
returns (uint);
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
return uint(balances[_owner]);
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint _amount)
public
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= uint96(_amount);
allowed[_from][msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint _amount)
public
returns (bool success)
{
allowed[msg.sender][_spender] = uint96(_amount);
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint remaining)
{
return allowed[_owner][_spender];
}
}
|
balanceOf
|
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
return uint(balances[_owner]);
}
|
// What is the balance of a particular account?
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
621,
780
]
}
| 54,619 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
ERC20Contract
|
contract ERC20Contract is ERC20 {
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
// Balances for each account
mapping(address => uint96) public balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint96)) allowed;
function totalSupply()
public
constant
returns (uint);
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
return uint(balances[_owner]);
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint _amount)
public
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= uint96(_amount);
allowed[_from][msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint _amount)
public
returns (bool success)
{
allowed[msg.sender][_spender] = uint96(_amount);
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint remaining)
{
return allowed[_owner][_spender];
}
}
|
transfer
|
function transfer(address _to, uint _amount)
public
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
|
// Transfer the balance from owner's account to another account
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
854,
1331
]
}
| 54,620 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
ERC20Contract
|
contract ERC20Contract is ERC20 {
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
// Balances for each account
mapping(address => uint96) public balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint96)) allowed;
function totalSupply()
public
constant
returns (uint);
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
return uint(balances[_owner]);
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint _amount)
public
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= uint96(_amount);
allowed[_from][msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint _amount)
public
returns (bool success)
{
allowed[msg.sender][_spender] = uint96(_amount);
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint remaining)
{
return allowed[_owner][_spender];
}
}
|
transferFrom
|
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= uint96(_amount);
allowed[_from][msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
|
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
1814,
2444
]
}
| 54,621 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
ERC20Contract
|
contract ERC20Contract is ERC20 {
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
// Balances for each account
mapping(address => uint96) public balances;
// Owner of account approves the transfer of an amount to another account
mapping(address => mapping (address => uint96)) allowed;
function totalSupply()
public
constant
returns (uint);
// What is the balance of a particular account?
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
return uint(balances[_owner]);
}
// Transfer the balance from owner's account to another account
function transfer(address _to, uint _amount)
public
returns (bool success)
{
if (balances[msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(msg.sender, _to, _amount);
return true;
} else {
return false;
}
}
// Send _value amount of tokens from address _from to address _to
// The transferFrom method is used for a withdraw workflow, allowing contracts to send
// tokens on your behalf, for example to "deposit" to a contract address and/or to charge
// fees in sub-currencies; the command should fail unless the _from account has
// deliberately authorized the sender of the message via some mechanism; we propose
// these standardized APIs for approval:
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
returns (bool success)
{
if (balances[_from] >= _amount
&& allowed[_from][msg.sender] >= _amount
&& _amount > 0
&& balances[_to] + _amount > balances[_to]) {
balances[_from] -= uint96(_amount);
allowed[_from][msg.sender] -= uint96(_amount);
balances[_to] += uint96(_amount);
Transfer(_from, _to, _amount);
return true;
} else {
return false;
}
}
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
function approve(address _spender, uint _amount)
public
returns (bool success)
{
allowed[msg.sender][_spender] = uint96(_amount);
Approval(msg.sender, _spender, _amount);
return true;
}
function allowance(address _owner, address _spender)
public
constant
returns (uint remaining)
{
return allowed[_owner][_spender];
}
}
|
approve
|
function approve(address _spender, uint _amount)
public
returns (bool success)
{
allowed[msg.sender][_spender] = uint96(_amount);
Approval(msg.sender, _spender, _amount);
return true;
}
|
// Allow _spender to withdraw from your account, multiple times, up to the _value amount.
// If this function is called again it overwrites the current allowance with _value.
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
2634,
2879
]
}
| 54,622 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UNITv2
|
contract UNITv2 is ERC20Contract,Administrated {
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//Total supply 500mln in the start
uint96 public _totalSupply = uint96(500000000 * (10**18));
UnilotToken public sourceToken;
Whitelist public transferWhiteList;
Whitelist public paymentGateways;
TokenStagesManager public stagesManager;
bool public unlocked = false;
bool public burned = false;
//tokenImport[tokenHolder][sourceToken] = true/false;
mapping ( address => mapping ( address => bool ) ) public tokenImport;
event TokensImported(address indexed tokenHolder, uint96 amount, address indexed source);
event TokensDelegated(address indexed tokenHolder, uint96 amount, address indexed source);
event Unlocked();
event Burned(uint96 amount);
modifier isLocked() {
require(unlocked == false);
_;
}
modifier isNotBurned() {
require(burned == false);
_;
}
modifier isTransferAllowed(address _from, address _to) {
if ( sourceToken.RESERVE_WALLET() == _from ) {
require( stagesManager.isFreezeTimeout() );
}
require(unlocked
|| ( stagesManager != address(0) && stagesManager.isCanList() )
|| ( transferWhiteList != address(0) && ( transferWhiteList.isInList(_from) || transferWhiteList.isInList(_to) ) )
);
_;
}
function UNITv2(address _sourceToken)
public
{
setAdministrator(tx.origin);
sourceToken = UnilotToken(_sourceToken);
/*Transactions:
0x99c28675adbd0d0cb7bd783ae197492078d4063f40c11139dd07c015a543ffcc
0x86038d11ee8da46703309d2fb45d150f1dc4e2bba6d0a8fee158016111104ff1
0x0340a8a2fb89513c0086a345973470b7bc33424e818ca6a32dcf9ad66bf9d75c
*/
balances[0xd13289203889bD898d49e31a1500388441C03663] += 1400000000000000000 * 3;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xd13289203889bD898d49e31a1500388441C03663);
//Tx: 0xec9b7b4c0f1435282e2e98a66efbd7610de7eacce3b2448cd5f503d70a64a895
balances[0xE33305B2EFbcB302DA513C38671D01646651a868] += 1400000000000000000;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xE33305B2EFbcB302DA513C38671D01646651a868);
//Assigning bounty
balances[0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb] += uint96(
( uint(_totalSupply) * uint8( sourceToken.DST_BOUNTY() ) ) / 100
);
//Don't import bounty and R&B tokens
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(sourceToken, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x91D740D87A8AeED1fc3EA3C346843173c529D63e);
}
function setTransferWhitelist(address whiteListAddress)
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(whiteListAddress);
}
function disableTransferWhitelist()
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(address(0));
}
function setStagesManager(address stagesManagerContract)
public
onlyAdministrator
isNotBurned
{
stagesManager = TokenStagesManager(stagesManagerContract);
}
function setPaymentGatewayList(address paymentGatewayListContract)
public
onlyAdministrator
isNotBurned
{
paymentGateways = Whitelist(paymentGatewayListContract);
}
//START Import related methods
function isImported(address _sourceToken, address _tokenHolder)
internal
constant
returns (bool)
{
return tokenImport[_tokenHolder][_sourceToken];
}
function markAsImported(address _sourceToken, address _tokenHolder)
internal
{
tokenImport[_tokenHolder][_sourceToken] = true;
}
function importFromSource(ERC20 _sourceToken, address _tokenHolder)
internal
{
if ( !isImported(_sourceToken, _tokenHolder) ) {
uint96 oldBalance = uint96(_sourceToken.balanceOf(_tokenHolder));
balances[_tokenHolder] += oldBalance;
markAsImported(_sourceToken, _tokenHolder);
TokensImported(_tokenHolder, oldBalance, _sourceToken);
}
}
//Imports from source token
function importTokensFromSourceToken(address _tokenHolder)
internal
{
importFromSource(ERC20(sourceToken), _tokenHolder);
}
function importFromExternal(ERC20 _sourceToken, address _tokenHolder)
public
onlyAdministrator
isNotBurned
{
return importFromSource(_sourceToken, _tokenHolder);
}
//Imports from provided token
function importTokensSourceBulk(ERC20 _sourceToken, address[] _tokenHolders)
public
onlyAdministrator
isNotBurned
{
require(_tokenHolders.length <= 256);
for (uint8 i = 0; i < _tokenHolders.length; i++) {
importFromSource(_sourceToken, _tokenHolders[i]);
}
}
//END Import related methods
//START ERC20
function totalSupply()
public
constant
returns (uint)
{
return uint(_totalSupply);
}
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
balance = super.balanceOf(_owner);
if (!isImported(sourceToken, _owner)) {
balance += sourceToken.balanceOf(_owner);
}
}
function transfer(address _to, uint _amount)
public
isTransferAllowed(msg.sender, _to)
returns (bool success)
{
return super.transfer(_to, _amount);
}
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
isTransferAllowed(_from, _to)
returns (bool success)
{
return super.transferFrom(_from, _to, _amount);
}
function approve(address _spender, uint _amount)
public
isTransferAllowed(msg.sender, _spender)
returns (bool success)
{
return super.approve(_spender, _amount);
}
//END ERC20
function delegateTokens(address tokenHolder, uint96 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender));
require(stagesManager.isICO());
require(stagesManager.getPool() >= amount);
uint88 bonus = stagesManager.calculateBonus(amount);
stagesManager.delegateFromPool(amount);
balances[tokenHolder] += amount + uint96(bonus);
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateBonusTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getBonusPool() >= amount);
stagesManager.delegateFromBonus(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, uint96(amount), msg.sender);
}
function delegateReferalTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getReferralPool() >= amount);
stagesManager.delegateFromReferral(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateReferralTokensBulk(address[] tokenHolders, uint88[] amounts)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(tokenHolders.length <= 256);
require(tokenHolders.length == amounts.length);
for ( uint8 i = 0; i < tokenHolders.length; i++ ) {
delegateReferalTokens(tokenHolders[i], amounts[i]);
}
}
function unlock()
public
isLocked
onlyAdministrator
{
unlocked = true;
Unlocked();
}
function burn()
public
onlyAdministrator
{
require(!stagesManager.isICO());
uint96 burnAmount = stagesManager.getPool()
+ stagesManager.getBonusPool()
+ stagesManager.getReferralPool();
_totalSupply -= burnAmount;
burned = true;
Burned(burnAmount);
}
}
|
isImported
|
function isImported(address _sourceToken, address _tokenHolder)
internal
constant
returns (bool)
{
return tokenImport[_tokenHolder][_sourceToken];
}
|
//START Import related methods
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
3928,
4127
]
}
| 54,623 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UNITv2
|
contract UNITv2 is ERC20Contract,Administrated {
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//Total supply 500mln in the start
uint96 public _totalSupply = uint96(500000000 * (10**18));
UnilotToken public sourceToken;
Whitelist public transferWhiteList;
Whitelist public paymentGateways;
TokenStagesManager public stagesManager;
bool public unlocked = false;
bool public burned = false;
//tokenImport[tokenHolder][sourceToken] = true/false;
mapping ( address => mapping ( address => bool ) ) public tokenImport;
event TokensImported(address indexed tokenHolder, uint96 amount, address indexed source);
event TokensDelegated(address indexed tokenHolder, uint96 amount, address indexed source);
event Unlocked();
event Burned(uint96 amount);
modifier isLocked() {
require(unlocked == false);
_;
}
modifier isNotBurned() {
require(burned == false);
_;
}
modifier isTransferAllowed(address _from, address _to) {
if ( sourceToken.RESERVE_WALLET() == _from ) {
require( stagesManager.isFreezeTimeout() );
}
require(unlocked
|| ( stagesManager != address(0) && stagesManager.isCanList() )
|| ( transferWhiteList != address(0) && ( transferWhiteList.isInList(_from) || transferWhiteList.isInList(_to) ) )
);
_;
}
function UNITv2(address _sourceToken)
public
{
setAdministrator(tx.origin);
sourceToken = UnilotToken(_sourceToken);
/*Transactions:
0x99c28675adbd0d0cb7bd783ae197492078d4063f40c11139dd07c015a543ffcc
0x86038d11ee8da46703309d2fb45d150f1dc4e2bba6d0a8fee158016111104ff1
0x0340a8a2fb89513c0086a345973470b7bc33424e818ca6a32dcf9ad66bf9d75c
*/
balances[0xd13289203889bD898d49e31a1500388441C03663] += 1400000000000000000 * 3;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xd13289203889bD898d49e31a1500388441C03663);
//Tx: 0xec9b7b4c0f1435282e2e98a66efbd7610de7eacce3b2448cd5f503d70a64a895
balances[0xE33305B2EFbcB302DA513C38671D01646651a868] += 1400000000000000000;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xE33305B2EFbcB302DA513C38671D01646651a868);
//Assigning bounty
balances[0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb] += uint96(
( uint(_totalSupply) * uint8( sourceToken.DST_BOUNTY() ) ) / 100
);
//Don't import bounty and R&B tokens
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(sourceToken, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x91D740D87A8AeED1fc3EA3C346843173c529D63e);
}
function setTransferWhitelist(address whiteListAddress)
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(whiteListAddress);
}
function disableTransferWhitelist()
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(address(0));
}
function setStagesManager(address stagesManagerContract)
public
onlyAdministrator
isNotBurned
{
stagesManager = TokenStagesManager(stagesManagerContract);
}
function setPaymentGatewayList(address paymentGatewayListContract)
public
onlyAdministrator
isNotBurned
{
paymentGateways = Whitelist(paymentGatewayListContract);
}
//START Import related methods
function isImported(address _sourceToken, address _tokenHolder)
internal
constant
returns (bool)
{
return tokenImport[_tokenHolder][_sourceToken];
}
function markAsImported(address _sourceToken, address _tokenHolder)
internal
{
tokenImport[_tokenHolder][_sourceToken] = true;
}
function importFromSource(ERC20 _sourceToken, address _tokenHolder)
internal
{
if ( !isImported(_sourceToken, _tokenHolder) ) {
uint96 oldBalance = uint96(_sourceToken.balanceOf(_tokenHolder));
balances[_tokenHolder] += oldBalance;
markAsImported(_sourceToken, _tokenHolder);
TokensImported(_tokenHolder, oldBalance, _sourceToken);
}
}
//Imports from source token
function importTokensFromSourceToken(address _tokenHolder)
internal
{
importFromSource(ERC20(sourceToken), _tokenHolder);
}
function importFromExternal(ERC20 _sourceToken, address _tokenHolder)
public
onlyAdministrator
isNotBurned
{
return importFromSource(_sourceToken, _tokenHolder);
}
//Imports from provided token
function importTokensSourceBulk(ERC20 _sourceToken, address[] _tokenHolders)
public
onlyAdministrator
isNotBurned
{
require(_tokenHolders.length <= 256);
for (uint8 i = 0; i < _tokenHolders.length; i++) {
importFromSource(_sourceToken, _tokenHolders[i]);
}
}
//END Import related methods
//START ERC20
function totalSupply()
public
constant
returns (uint)
{
return uint(_totalSupply);
}
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
balance = super.balanceOf(_owner);
if (!isImported(sourceToken, _owner)) {
balance += sourceToken.balanceOf(_owner);
}
}
function transfer(address _to, uint _amount)
public
isTransferAllowed(msg.sender, _to)
returns (bool success)
{
return super.transfer(_to, _amount);
}
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
isTransferAllowed(_from, _to)
returns (bool success)
{
return super.transferFrom(_from, _to, _amount);
}
function approve(address _spender, uint _amount)
public
isTransferAllowed(msg.sender, _spender)
returns (bool success)
{
return super.approve(_spender, _amount);
}
//END ERC20
function delegateTokens(address tokenHolder, uint96 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender));
require(stagesManager.isICO());
require(stagesManager.getPool() >= amount);
uint88 bonus = stagesManager.calculateBonus(amount);
stagesManager.delegateFromPool(amount);
balances[tokenHolder] += amount + uint96(bonus);
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateBonusTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getBonusPool() >= amount);
stagesManager.delegateFromBonus(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, uint96(amount), msg.sender);
}
function delegateReferalTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getReferralPool() >= amount);
stagesManager.delegateFromReferral(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateReferralTokensBulk(address[] tokenHolders, uint88[] amounts)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(tokenHolders.length <= 256);
require(tokenHolders.length == amounts.length);
for ( uint8 i = 0; i < tokenHolders.length; i++ ) {
delegateReferalTokens(tokenHolders[i], amounts[i]);
}
}
function unlock()
public
isLocked
onlyAdministrator
{
unlocked = true;
Unlocked();
}
function burn()
public
onlyAdministrator
{
require(!stagesManager.isICO());
uint96 burnAmount = stagesManager.getPool()
+ stagesManager.getBonusPool()
+ stagesManager.getReferralPool();
_totalSupply -= burnAmount;
burned = true;
Burned(burnAmount);
}
}
|
importTokensFromSourceToken
|
function importTokensFromSourceToken(address _tokenHolder)
internal
{
importFromSource(ERC20(sourceToken), _tokenHolder);
}
|
//Imports from source token
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
4761,
4917
]
}
| 54,624 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UNITv2
|
contract UNITv2 is ERC20Contract,Administrated {
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//Total supply 500mln in the start
uint96 public _totalSupply = uint96(500000000 * (10**18));
UnilotToken public sourceToken;
Whitelist public transferWhiteList;
Whitelist public paymentGateways;
TokenStagesManager public stagesManager;
bool public unlocked = false;
bool public burned = false;
//tokenImport[tokenHolder][sourceToken] = true/false;
mapping ( address => mapping ( address => bool ) ) public tokenImport;
event TokensImported(address indexed tokenHolder, uint96 amount, address indexed source);
event TokensDelegated(address indexed tokenHolder, uint96 amount, address indexed source);
event Unlocked();
event Burned(uint96 amount);
modifier isLocked() {
require(unlocked == false);
_;
}
modifier isNotBurned() {
require(burned == false);
_;
}
modifier isTransferAllowed(address _from, address _to) {
if ( sourceToken.RESERVE_WALLET() == _from ) {
require( stagesManager.isFreezeTimeout() );
}
require(unlocked
|| ( stagesManager != address(0) && stagesManager.isCanList() )
|| ( transferWhiteList != address(0) && ( transferWhiteList.isInList(_from) || transferWhiteList.isInList(_to) ) )
);
_;
}
function UNITv2(address _sourceToken)
public
{
setAdministrator(tx.origin);
sourceToken = UnilotToken(_sourceToken);
/*Transactions:
0x99c28675adbd0d0cb7bd783ae197492078d4063f40c11139dd07c015a543ffcc
0x86038d11ee8da46703309d2fb45d150f1dc4e2bba6d0a8fee158016111104ff1
0x0340a8a2fb89513c0086a345973470b7bc33424e818ca6a32dcf9ad66bf9d75c
*/
balances[0xd13289203889bD898d49e31a1500388441C03663] += 1400000000000000000 * 3;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xd13289203889bD898d49e31a1500388441C03663);
//Tx: 0xec9b7b4c0f1435282e2e98a66efbd7610de7eacce3b2448cd5f503d70a64a895
balances[0xE33305B2EFbcB302DA513C38671D01646651a868] += 1400000000000000000;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xE33305B2EFbcB302DA513C38671D01646651a868);
//Assigning bounty
balances[0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb] += uint96(
( uint(_totalSupply) * uint8( sourceToken.DST_BOUNTY() ) ) / 100
);
//Don't import bounty and R&B tokens
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(sourceToken, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x91D740D87A8AeED1fc3EA3C346843173c529D63e);
}
function setTransferWhitelist(address whiteListAddress)
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(whiteListAddress);
}
function disableTransferWhitelist()
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(address(0));
}
function setStagesManager(address stagesManagerContract)
public
onlyAdministrator
isNotBurned
{
stagesManager = TokenStagesManager(stagesManagerContract);
}
function setPaymentGatewayList(address paymentGatewayListContract)
public
onlyAdministrator
isNotBurned
{
paymentGateways = Whitelist(paymentGatewayListContract);
}
//START Import related methods
function isImported(address _sourceToken, address _tokenHolder)
internal
constant
returns (bool)
{
return tokenImport[_tokenHolder][_sourceToken];
}
function markAsImported(address _sourceToken, address _tokenHolder)
internal
{
tokenImport[_tokenHolder][_sourceToken] = true;
}
function importFromSource(ERC20 _sourceToken, address _tokenHolder)
internal
{
if ( !isImported(_sourceToken, _tokenHolder) ) {
uint96 oldBalance = uint96(_sourceToken.balanceOf(_tokenHolder));
balances[_tokenHolder] += oldBalance;
markAsImported(_sourceToken, _tokenHolder);
TokensImported(_tokenHolder, oldBalance, _sourceToken);
}
}
//Imports from source token
function importTokensFromSourceToken(address _tokenHolder)
internal
{
importFromSource(ERC20(sourceToken), _tokenHolder);
}
function importFromExternal(ERC20 _sourceToken, address _tokenHolder)
public
onlyAdministrator
isNotBurned
{
return importFromSource(_sourceToken, _tokenHolder);
}
//Imports from provided token
function importTokensSourceBulk(ERC20 _sourceToken, address[] _tokenHolders)
public
onlyAdministrator
isNotBurned
{
require(_tokenHolders.length <= 256);
for (uint8 i = 0; i < _tokenHolders.length; i++) {
importFromSource(_sourceToken, _tokenHolders[i]);
}
}
//END Import related methods
//START ERC20
function totalSupply()
public
constant
returns (uint)
{
return uint(_totalSupply);
}
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
balance = super.balanceOf(_owner);
if (!isImported(sourceToken, _owner)) {
balance += sourceToken.balanceOf(_owner);
}
}
function transfer(address _to, uint _amount)
public
isTransferAllowed(msg.sender, _to)
returns (bool success)
{
return super.transfer(_to, _amount);
}
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
isTransferAllowed(_from, _to)
returns (bool success)
{
return super.transferFrom(_from, _to, _amount);
}
function approve(address _spender, uint _amount)
public
isTransferAllowed(msg.sender, _spender)
returns (bool success)
{
return super.approve(_spender, _amount);
}
//END ERC20
function delegateTokens(address tokenHolder, uint96 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender));
require(stagesManager.isICO());
require(stagesManager.getPool() >= amount);
uint88 bonus = stagesManager.calculateBonus(amount);
stagesManager.delegateFromPool(amount);
balances[tokenHolder] += amount + uint96(bonus);
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateBonusTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getBonusPool() >= amount);
stagesManager.delegateFromBonus(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, uint96(amount), msg.sender);
}
function delegateReferalTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getReferralPool() >= amount);
stagesManager.delegateFromReferral(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateReferralTokensBulk(address[] tokenHolders, uint88[] amounts)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(tokenHolders.length <= 256);
require(tokenHolders.length == amounts.length);
for ( uint8 i = 0; i < tokenHolders.length; i++ ) {
delegateReferalTokens(tokenHolders[i], amounts[i]);
}
}
function unlock()
public
isLocked
onlyAdministrator
{
unlocked = true;
Unlocked();
}
function burn()
public
onlyAdministrator
{
require(!stagesManager.isICO());
uint96 burnAmount = stagesManager.getPool()
+ stagesManager.getBonusPool()
+ stagesManager.getReferralPool();
_totalSupply -= burnAmount;
burned = true;
Burned(burnAmount);
}
}
|
importTokensSourceBulk
|
function importTokensSourceBulk(ERC20 _sourceToken, address[] _tokenHolders)
public
onlyAdministrator
isNotBurned
{
require(_tokenHolders.length <= 256);
for (uint8 i = 0; i < _tokenHolders.length; i++) {
importFromSource(_sourceToken, _tokenHolders[i]);
}
}
|
//Imports from provided token
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
5172,
5514
]
}
| 54,625 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UNITv2
|
contract UNITv2 is ERC20Contract,Administrated {
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//Total supply 500mln in the start
uint96 public _totalSupply = uint96(500000000 * (10**18));
UnilotToken public sourceToken;
Whitelist public transferWhiteList;
Whitelist public paymentGateways;
TokenStagesManager public stagesManager;
bool public unlocked = false;
bool public burned = false;
//tokenImport[tokenHolder][sourceToken] = true/false;
mapping ( address => mapping ( address => bool ) ) public tokenImport;
event TokensImported(address indexed tokenHolder, uint96 amount, address indexed source);
event TokensDelegated(address indexed tokenHolder, uint96 amount, address indexed source);
event Unlocked();
event Burned(uint96 amount);
modifier isLocked() {
require(unlocked == false);
_;
}
modifier isNotBurned() {
require(burned == false);
_;
}
modifier isTransferAllowed(address _from, address _to) {
if ( sourceToken.RESERVE_WALLET() == _from ) {
require( stagesManager.isFreezeTimeout() );
}
require(unlocked
|| ( stagesManager != address(0) && stagesManager.isCanList() )
|| ( transferWhiteList != address(0) && ( transferWhiteList.isInList(_from) || transferWhiteList.isInList(_to) ) )
);
_;
}
function UNITv2(address _sourceToken)
public
{
setAdministrator(tx.origin);
sourceToken = UnilotToken(_sourceToken);
/*Transactions:
0x99c28675adbd0d0cb7bd783ae197492078d4063f40c11139dd07c015a543ffcc
0x86038d11ee8da46703309d2fb45d150f1dc4e2bba6d0a8fee158016111104ff1
0x0340a8a2fb89513c0086a345973470b7bc33424e818ca6a32dcf9ad66bf9d75c
*/
balances[0xd13289203889bD898d49e31a1500388441C03663] += 1400000000000000000 * 3;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xd13289203889bD898d49e31a1500388441C03663);
//Tx: 0xec9b7b4c0f1435282e2e98a66efbd7610de7eacce3b2448cd5f503d70a64a895
balances[0xE33305B2EFbcB302DA513C38671D01646651a868] += 1400000000000000000;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xE33305B2EFbcB302DA513C38671D01646651a868);
//Assigning bounty
balances[0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb] += uint96(
( uint(_totalSupply) * uint8( sourceToken.DST_BOUNTY() ) ) / 100
);
//Don't import bounty and R&B tokens
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(sourceToken, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x91D740D87A8AeED1fc3EA3C346843173c529D63e);
}
function setTransferWhitelist(address whiteListAddress)
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(whiteListAddress);
}
function disableTransferWhitelist()
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(address(0));
}
function setStagesManager(address stagesManagerContract)
public
onlyAdministrator
isNotBurned
{
stagesManager = TokenStagesManager(stagesManagerContract);
}
function setPaymentGatewayList(address paymentGatewayListContract)
public
onlyAdministrator
isNotBurned
{
paymentGateways = Whitelist(paymentGatewayListContract);
}
//START Import related methods
function isImported(address _sourceToken, address _tokenHolder)
internal
constant
returns (bool)
{
return tokenImport[_tokenHolder][_sourceToken];
}
function markAsImported(address _sourceToken, address _tokenHolder)
internal
{
tokenImport[_tokenHolder][_sourceToken] = true;
}
function importFromSource(ERC20 _sourceToken, address _tokenHolder)
internal
{
if ( !isImported(_sourceToken, _tokenHolder) ) {
uint96 oldBalance = uint96(_sourceToken.balanceOf(_tokenHolder));
balances[_tokenHolder] += oldBalance;
markAsImported(_sourceToken, _tokenHolder);
TokensImported(_tokenHolder, oldBalance, _sourceToken);
}
}
//Imports from source token
function importTokensFromSourceToken(address _tokenHolder)
internal
{
importFromSource(ERC20(sourceToken), _tokenHolder);
}
function importFromExternal(ERC20 _sourceToken, address _tokenHolder)
public
onlyAdministrator
isNotBurned
{
return importFromSource(_sourceToken, _tokenHolder);
}
//Imports from provided token
function importTokensSourceBulk(ERC20 _sourceToken, address[] _tokenHolders)
public
onlyAdministrator
isNotBurned
{
require(_tokenHolders.length <= 256);
for (uint8 i = 0; i < _tokenHolders.length; i++) {
importFromSource(_sourceToken, _tokenHolders[i]);
}
}
//END Import related methods
//START ERC20
function totalSupply()
public
constant
returns (uint)
{
return uint(_totalSupply);
}
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
balance = super.balanceOf(_owner);
if (!isImported(sourceToken, _owner)) {
balance += sourceToken.balanceOf(_owner);
}
}
function transfer(address _to, uint _amount)
public
isTransferAllowed(msg.sender, _to)
returns (bool success)
{
return super.transfer(_to, _amount);
}
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
isTransferAllowed(_from, _to)
returns (bool success)
{
return super.transferFrom(_from, _to, _amount);
}
function approve(address _spender, uint _amount)
public
isTransferAllowed(msg.sender, _spender)
returns (bool success)
{
return super.approve(_spender, _amount);
}
//END ERC20
function delegateTokens(address tokenHolder, uint96 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender));
require(stagesManager.isICO());
require(stagesManager.getPool() >= amount);
uint88 bonus = stagesManager.calculateBonus(amount);
stagesManager.delegateFromPool(amount);
balances[tokenHolder] += amount + uint96(bonus);
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateBonusTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getBonusPool() >= amount);
stagesManager.delegateFromBonus(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, uint96(amount), msg.sender);
}
function delegateReferalTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getReferralPool() >= amount);
stagesManager.delegateFromReferral(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateReferralTokensBulk(address[] tokenHolders, uint88[] amounts)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(tokenHolders.length <= 256);
require(tokenHolders.length == amounts.length);
for ( uint8 i = 0; i < tokenHolders.length; i++ ) {
delegateReferalTokens(tokenHolders[i], amounts[i]);
}
}
function unlock()
public
isLocked
onlyAdministrator
{
unlocked = true;
Unlocked();
}
function burn()
public
onlyAdministrator
{
require(!stagesManager.isICO());
uint96 burnAmount = stagesManager.getPool()
+ stagesManager.getBonusPool()
+ stagesManager.getReferralPool();
_totalSupply -= burnAmount;
burned = true;
Burned(burnAmount);
}
}
|
totalSupply
|
function totalSupply()
public
constant
returns (uint)
{
return uint(_totalSupply);
}
|
//END Import related methods
//START ERC20
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
5570,
5705
]
}
| 54,626 |
|||
UNITSimplePaymentGateway
|
UNITSimplePaymentGateway.sol
|
0x34c8ff4e1cd9a57c54b29e85757a30279efa07aa
|
Solidity
|
UNITv2
|
contract UNITv2 is ERC20Contract,Administrated {
//Token symbol
string public constant symbol = "UNIT";
//Token name
string public constant name = "Unilot token";
//It can be reeeealy small
uint8 public constant decimals = 18;
//Total supply 500mln in the start
uint96 public _totalSupply = uint96(500000000 * (10**18));
UnilotToken public sourceToken;
Whitelist public transferWhiteList;
Whitelist public paymentGateways;
TokenStagesManager public stagesManager;
bool public unlocked = false;
bool public burned = false;
//tokenImport[tokenHolder][sourceToken] = true/false;
mapping ( address => mapping ( address => bool ) ) public tokenImport;
event TokensImported(address indexed tokenHolder, uint96 amount, address indexed source);
event TokensDelegated(address indexed tokenHolder, uint96 amount, address indexed source);
event Unlocked();
event Burned(uint96 amount);
modifier isLocked() {
require(unlocked == false);
_;
}
modifier isNotBurned() {
require(burned == false);
_;
}
modifier isTransferAllowed(address _from, address _to) {
if ( sourceToken.RESERVE_WALLET() == _from ) {
require( stagesManager.isFreezeTimeout() );
}
require(unlocked
|| ( stagesManager != address(0) && stagesManager.isCanList() )
|| ( transferWhiteList != address(0) && ( transferWhiteList.isInList(_from) || transferWhiteList.isInList(_to) ) )
);
_;
}
function UNITv2(address _sourceToken)
public
{
setAdministrator(tx.origin);
sourceToken = UnilotToken(_sourceToken);
/*Transactions:
0x99c28675adbd0d0cb7bd783ae197492078d4063f40c11139dd07c015a543ffcc
0x86038d11ee8da46703309d2fb45d150f1dc4e2bba6d0a8fee158016111104ff1
0x0340a8a2fb89513c0086a345973470b7bc33424e818ca6a32dcf9ad66bf9d75c
*/
balances[0xd13289203889bD898d49e31a1500388441C03663] += 1400000000000000000 * 3;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xd13289203889bD898d49e31a1500388441C03663);
//Tx: 0xec9b7b4c0f1435282e2e98a66efbd7610de7eacce3b2448cd5f503d70a64a895
balances[0xE33305B2EFbcB302DA513C38671D01646651a868] += 1400000000000000000;
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0xE33305B2EFbcB302DA513C38671D01646651a868);
//Assigning bounty
balances[0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb] += uint96(
( uint(_totalSupply) * uint8( sourceToken.DST_BOUNTY() ) ) / 100
);
//Don't import bounty and R&B tokens
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(sourceToken, 0x794EF9c680bDD0bEf48Bef46bA68471e449D67Fb);
markAsImported(0xdBF98dF5DAd9077f457e1dcf85Aa9420BcA8B761, 0x91D740D87A8AeED1fc3EA3C346843173c529D63e);
}
function setTransferWhitelist(address whiteListAddress)
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(whiteListAddress);
}
function disableTransferWhitelist()
public
onlyAdministrator
isNotBurned
{
transferWhiteList = Whitelist(address(0));
}
function setStagesManager(address stagesManagerContract)
public
onlyAdministrator
isNotBurned
{
stagesManager = TokenStagesManager(stagesManagerContract);
}
function setPaymentGatewayList(address paymentGatewayListContract)
public
onlyAdministrator
isNotBurned
{
paymentGateways = Whitelist(paymentGatewayListContract);
}
//START Import related methods
function isImported(address _sourceToken, address _tokenHolder)
internal
constant
returns (bool)
{
return tokenImport[_tokenHolder][_sourceToken];
}
function markAsImported(address _sourceToken, address _tokenHolder)
internal
{
tokenImport[_tokenHolder][_sourceToken] = true;
}
function importFromSource(ERC20 _sourceToken, address _tokenHolder)
internal
{
if ( !isImported(_sourceToken, _tokenHolder) ) {
uint96 oldBalance = uint96(_sourceToken.balanceOf(_tokenHolder));
balances[_tokenHolder] += oldBalance;
markAsImported(_sourceToken, _tokenHolder);
TokensImported(_tokenHolder, oldBalance, _sourceToken);
}
}
//Imports from source token
function importTokensFromSourceToken(address _tokenHolder)
internal
{
importFromSource(ERC20(sourceToken), _tokenHolder);
}
function importFromExternal(ERC20 _sourceToken, address _tokenHolder)
public
onlyAdministrator
isNotBurned
{
return importFromSource(_sourceToken, _tokenHolder);
}
//Imports from provided token
function importTokensSourceBulk(ERC20 _sourceToken, address[] _tokenHolders)
public
onlyAdministrator
isNotBurned
{
require(_tokenHolders.length <= 256);
for (uint8 i = 0; i < _tokenHolders.length; i++) {
importFromSource(_sourceToken, _tokenHolders[i]);
}
}
//END Import related methods
//START ERC20
function totalSupply()
public
constant
returns (uint)
{
return uint(_totalSupply);
}
function balanceOf(address _owner)
public
constant
returns (uint balance)
{
balance = super.balanceOf(_owner);
if (!isImported(sourceToken, _owner)) {
balance += sourceToken.balanceOf(_owner);
}
}
function transfer(address _to, uint _amount)
public
isTransferAllowed(msg.sender, _to)
returns (bool success)
{
return super.transfer(_to, _amount);
}
function transferFrom(
address _from,
address _to,
uint256 _amount
)
public
isTransferAllowed(_from, _to)
returns (bool success)
{
return super.transferFrom(_from, _to, _amount);
}
function approve(address _spender, uint _amount)
public
isTransferAllowed(msg.sender, _spender)
returns (bool success)
{
return super.approve(_spender, _amount);
}
//END ERC20
function delegateTokens(address tokenHolder, uint96 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender));
require(stagesManager.isICO());
require(stagesManager.getPool() >= amount);
uint88 bonus = stagesManager.calculateBonus(amount);
stagesManager.delegateFromPool(amount);
balances[tokenHolder] += amount + uint96(bonus);
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateBonusTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getBonusPool() >= amount);
stagesManager.delegateFromBonus(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, uint96(amount), msg.sender);
}
function delegateReferalTokens(address tokenHolder, uint88 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(stagesManager.getReferralPool() >= amount);
stagesManager.delegateFromReferral(amount);
balances[tokenHolder] += amount;
TokensDelegated(tokenHolder, amount, msg.sender);
}
function delegateReferralTokensBulk(address[] tokenHolders, uint88[] amounts)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender) || tx.origin == administrator);
require(tokenHolders.length <= 256);
require(tokenHolders.length == amounts.length);
for ( uint8 i = 0; i < tokenHolders.length; i++ ) {
delegateReferalTokens(tokenHolders[i], amounts[i]);
}
}
function unlock()
public
isLocked
onlyAdministrator
{
unlocked = true;
Unlocked();
}
function burn()
public
onlyAdministrator
{
require(!stagesManager.isICO());
uint96 burnAmount = stagesManager.getPool()
+ stagesManager.getBonusPool()
+ stagesManager.getReferralPool();
_totalSupply -= burnAmount;
burned = true;
Burned(burnAmount);
}
}
|
delegateTokens
|
function delegateTokens(address tokenHolder, uint96 amount)
public
isNotBurned
{
require(paymentGateways.isInList(msg.sender));
require(stagesManager.isICO());
require(stagesManager.getPool() >= amount);
uint88 bonus = stagesManager.calculateBonus(amount);
stagesManager.delegateFromPool(amount);
balances[tokenHolder] += amount + uint96(bonus);
TokensDelegated(tokenHolder, amount, msg.sender);
}
|
//END ERC20
|
LineComment
|
v0.4.18+commit.9cf6e910
|
bzzr://172dfda8daea622ebf2bc13f44dba330c5860bf5a15ebc736adaac0712ea2ce5
|
{
"func_code_index": [
6695,
7194
]
}
| 54,627 |
|||
BountyAuction
|
contracts/Auction.sol
|
0x5165a6cf99f58aa20032abdf5aaf3f8cd6978617
|
Solidity
|
BountyAuction
|
contract BountyAuction is ReentrancyGuard{
PricingSession public session;
ABCTreasury public treasury;
address public admin;
address public ABCToken;
uint public nonce;
bool public auctionStatus;
bool public firstSession;
/* ======== MAPPINGS ======== */
mapping(uint => uint) public highestBid;
mapping(uint => uint) public endTime;
mapping(uint => address) public winners;
mapping(uint => address) public highestBidder;
mapping(address => uint) bidTime;
mapping(address => uint) tvl;
mapping(uint => mapping(address => AuctionVote)) public userVote;
/* ======== STRUCTS ======== */
struct AuctionVote {
address nftAddress;
uint tokenid;
uint intitialAppraisal;
uint bid;
}
/* ======== Constructor ======== */
constructor() {
admin = msg.sender;
auctionStatus = true;
}
/* ======== ADMIN ======== */
///@notice toggles active status of Auction contract
function toggleAuction() external {
require(msg.sender == admin);
auctionStatus = !auctionStatus;
nonce++;
}
function setSessionContract(address _session) external {
require(msg.sender == admin);
session = PricingSession(payable(_session));
}
function setTreasury(address _treasury) external {
require(msg.sender == admin);
treasury = ABCTreasury(payable(_treasury));
}
function setToken(address _token) external {
require(msg.sender == admin);
ABCToken = _token;
}
function setFirst(bool _state) external {
require(msg.sender == admin);
firstSession = _state;
}
/* ======== AUCTION INTERACTION ======== */
///@notice allow user to submit new bid
function newBid(address _nftAddress, uint _tokenid, uint _initailAppraisal) nonReentrant payable external {
require(
msg.value > highestBid[nonce]
&& auctionStatus
);
bidTime[msg.sender] = block.timestamp;
highestBidder[nonce] = msg.sender;
highestBid[nonce] = msg.value;
tvl[msg.sender] -= userVote[nonce][msg.sender].bid;
(bool sent, ) = payable(msg.sender).call{value: userVote[nonce][msg.sender].bid}("");
require(sent);
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initailAppraisal;
userVote[nonce][msg.sender].bid = msg.value;
tvl[msg.sender] += msg.value;
}
///@notice allow user to change nft that they'd like appraised if they win
function changeInfo(address _nftAddress, uint _tokenid, uint _initialAppraisal) external {
require(userVote[nonce][msg.sender].nftAddress != address(0));
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initialAppraisal;
}
///@notice triggered when auction ends, starts session for highest bidder
function endAuction() nonReentrant external {
if(firstSession) {
require(msg.sender == admin);
}
require(endTime[nonce] < block.timestamp && auctionStatus);
treasury.sendABCToken(address(this), 0.005 ether * session.ethToAbc());
session.createNewSession(
userVote[nonce][highestBidder[nonce]].nftAddress,
userVote[nonce][highestBidder[nonce]].tokenid,
userVote[nonce][highestBidder[nonce]].intitialAppraisal,
86400,
address(0)
);
uint bountySend = userVote[nonce][highestBidder[nonce]].bid;
userVote[nonce][highestBidder[nonce]].bid = 0;
tvl[highestBidder[nonce]] -= bountySend;
endTime[++nonce] = block.timestamp + 86400;
(bool sent, ) = payable(session).call{value: bountySend}("");
require(sent);
}
///@notice allows users to claim non-employed funds
function claim() nonReentrant external {
uint returnValue;
if(highestBidder[nonce] != msg.sender) {
returnValue = tvl[msg.sender];
}
else {
returnValue = tvl[msg.sender] - userVote[nonce][msg.sender].bid;
}
tvl[msg.sender] -= returnValue;
(bool sent, ) = payable(msg.sender).call{value: returnValue}("");
require(sent);
}
}
|
///@author Medici
///@title Bounty auction contract for Abacus
|
NatSpecSingleLine
|
toggleAuction
|
function toggleAuction() external {
require(msg.sender == admin);
auctionStatus = !auctionStatus;
nonce++;
}
|
///@notice toggles active status of Auction contract
|
NatSpecSingleLine
|
v0.8.0+commit.c7dfd78e
|
{
"func_code_index": [
1011,
1151
]
}
| 54,628 |
||
BountyAuction
|
contracts/Auction.sol
|
0x5165a6cf99f58aa20032abdf5aaf3f8cd6978617
|
Solidity
|
BountyAuction
|
contract BountyAuction is ReentrancyGuard{
PricingSession public session;
ABCTreasury public treasury;
address public admin;
address public ABCToken;
uint public nonce;
bool public auctionStatus;
bool public firstSession;
/* ======== MAPPINGS ======== */
mapping(uint => uint) public highestBid;
mapping(uint => uint) public endTime;
mapping(uint => address) public winners;
mapping(uint => address) public highestBidder;
mapping(address => uint) bidTime;
mapping(address => uint) tvl;
mapping(uint => mapping(address => AuctionVote)) public userVote;
/* ======== STRUCTS ======== */
struct AuctionVote {
address nftAddress;
uint tokenid;
uint intitialAppraisal;
uint bid;
}
/* ======== Constructor ======== */
constructor() {
admin = msg.sender;
auctionStatus = true;
}
/* ======== ADMIN ======== */
///@notice toggles active status of Auction contract
function toggleAuction() external {
require(msg.sender == admin);
auctionStatus = !auctionStatus;
nonce++;
}
function setSessionContract(address _session) external {
require(msg.sender == admin);
session = PricingSession(payable(_session));
}
function setTreasury(address _treasury) external {
require(msg.sender == admin);
treasury = ABCTreasury(payable(_treasury));
}
function setToken(address _token) external {
require(msg.sender == admin);
ABCToken = _token;
}
function setFirst(bool _state) external {
require(msg.sender == admin);
firstSession = _state;
}
/* ======== AUCTION INTERACTION ======== */
///@notice allow user to submit new bid
function newBid(address _nftAddress, uint _tokenid, uint _initailAppraisal) nonReentrant payable external {
require(
msg.value > highestBid[nonce]
&& auctionStatus
);
bidTime[msg.sender] = block.timestamp;
highestBidder[nonce] = msg.sender;
highestBid[nonce] = msg.value;
tvl[msg.sender] -= userVote[nonce][msg.sender].bid;
(bool sent, ) = payable(msg.sender).call{value: userVote[nonce][msg.sender].bid}("");
require(sent);
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initailAppraisal;
userVote[nonce][msg.sender].bid = msg.value;
tvl[msg.sender] += msg.value;
}
///@notice allow user to change nft that they'd like appraised if they win
function changeInfo(address _nftAddress, uint _tokenid, uint _initialAppraisal) external {
require(userVote[nonce][msg.sender].nftAddress != address(0));
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initialAppraisal;
}
///@notice triggered when auction ends, starts session for highest bidder
function endAuction() nonReentrant external {
if(firstSession) {
require(msg.sender == admin);
}
require(endTime[nonce] < block.timestamp && auctionStatus);
treasury.sendABCToken(address(this), 0.005 ether * session.ethToAbc());
session.createNewSession(
userVote[nonce][highestBidder[nonce]].nftAddress,
userVote[nonce][highestBidder[nonce]].tokenid,
userVote[nonce][highestBidder[nonce]].intitialAppraisal,
86400,
address(0)
);
uint bountySend = userVote[nonce][highestBidder[nonce]].bid;
userVote[nonce][highestBidder[nonce]].bid = 0;
tvl[highestBidder[nonce]] -= bountySend;
endTime[++nonce] = block.timestamp + 86400;
(bool sent, ) = payable(session).call{value: bountySend}("");
require(sent);
}
///@notice allows users to claim non-employed funds
function claim() nonReentrant external {
uint returnValue;
if(highestBidder[nonce] != msg.sender) {
returnValue = tvl[msg.sender];
}
else {
returnValue = tvl[msg.sender] - userVote[nonce][msg.sender].bid;
}
tvl[msg.sender] -= returnValue;
(bool sent, ) = payable(msg.sender).call{value: returnValue}("");
require(sent);
}
}
|
///@author Medici
///@title Bounty auction contract for Abacus
|
NatSpecSingleLine
|
newBid
|
function newBid(address _nftAddress, uint _tokenid, uint _initailAppraisal) nonReentrant payable external {
require(
msg.value > highestBid[nonce]
&& auctionStatus
);
bidTime[msg.sender] = block.timestamp;
highestBidder[nonce] = msg.sender;
highestBid[nonce] = msg.value;
tvl[msg.sender] -= userVote[nonce][msg.sender].bid;
(bool sent, ) = payable(msg.sender).call{value: userVote[nonce][msg.sender].bid}("");
require(sent);
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initailAppraisal;
userVote[nonce][msg.sender].bid = msg.value;
tvl[msg.sender] += msg.value;
}
|
///@notice allow user to submit new bid
|
NatSpecSingleLine
|
v0.8.0+commit.c7dfd78e
|
{
"func_code_index": [
1800,
2606
]
}
| 54,629 |
||
BountyAuction
|
contracts/Auction.sol
|
0x5165a6cf99f58aa20032abdf5aaf3f8cd6978617
|
Solidity
|
BountyAuction
|
contract BountyAuction is ReentrancyGuard{
PricingSession public session;
ABCTreasury public treasury;
address public admin;
address public ABCToken;
uint public nonce;
bool public auctionStatus;
bool public firstSession;
/* ======== MAPPINGS ======== */
mapping(uint => uint) public highestBid;
mapping(uint => uint) public endTime;
mapping(uint => address) public winners;
mapping(uint => address) public highestBidder;
mapping(address => uint) bidTime;
mapping(address => uint) tvl;
mapping(uint => mapping(address => AuctionVote)) public userVote;
/* ======== STRUCTS ======== */
struct AuctionVote {
address nftAddress;
uint tokenid;
uint intitialAppraisal;
uint bid;
}
/* ======== Constructor ======== */
constructor() {
admin = msg.sender;
auctionStatus = true;
}
/* ======== ADMIN ======== */
///@notice toggles active status of Auction contract
function toggleAuction() external {
require(msg.sender == admin);
auctionStatus = !auctionStatus;
nonce++;
}
function setSessionContract(address _session) external {
require(msg.sender == admin);
session = PricingSession(payable(_session));
}
function setTreasury(address _treasury) external {
require(msg.sender == admin);
treasury = ABCTreasury(payable(_treasury));
}
function setToken(address _token) external {
require(msg.sender == admin);
ABCToken = _token;
}
function setFirst(bool _state) external {
require(msg.sender == admin);
firstSession = _state;
}
/* ======== AUCTION INTERACTION ======== */
///@notice allow user to submit new bid
function newBid(address _nftAddress, uint _tokenid, uint _initailAppraisal) nonReentrant payable external {
require(
msg.value > highestBid[nonce]
&& auctionStatus
);
bidTime[msg.sender] = block.timestamp;
highestBidder[nonce] = msg.sender;
highestBid[nonce] = msg.value;
tvl[msg.sender] -= userVote[nonce][msg.sender].bid;
(bool sent, ) = payable(msg.sender).call{value: userVote[nonce][msg.sender].bid}("");
require(sent);
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initailAppraisal;
userVote[nonce][msg.sender].bid = msg.value;
tvl[msg.sender] += msg.value;
}
///@notice allow user to change nft that they'd like appraised if they win
function changeInfo(address _nftAddress, uint _tokenid, uint _initialAppraisal) external {
require(userVote[nonce][msg.sender].nftAddress != address(0));
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initialAppraisal;
}
///@notice triggered when auction ends, starts session for highest bidder
function endAuction() nonReentrant external {
if(firstSession) {
require(msg.sender == admin);
}
require(endTime[nonce] < block.timestamp && auctionStatus);
treasury.sendABCToken(address(this), 0.005 ether * session.ethToAbc());
session.createNewSession(
userVote[nonce][highestBidder[nonce]].nftAddress,
userVote[nonce][highestBidder[nonce]].tokenid,
userVote[nonce][highestBidder[nonce]].intitialAppraisal,
86400,
address(0)
);
uint bountySend = userVote[nonce][highestBidder[nonce]].bid;
userVote[nonce][highestBidder[nonce]].bid = 0;
tvl[highestBidder[nonce]] -= bountySend;
endTime[++nonce] = block.timestamp + 86400;
(bool sent, ) = payable(session).call{value: bountySend}("");
require(sent);
}
///@notice allows users to claim non-employed funds
function claim() nonReentrant external {
uint returnValue;
if(highestBidder[nonce] != msg.sender) {
returnValue = tvl[msg.sender];
}
else {
returnValue = tvl[msg.sender] - userVote[nonce][msg.sender].bid;
}
tvl[msg.sender] -= returnValue;
(bool sent, ) = payable(msg.sender).call{value: returnValue}("");
require(sent);
}
}
|
///@author Medici
///@title Bounty auction contract for Abacus
|
NatSpecSingleLine
|
changeInfo
|
function changeInfo(address _nftAddress, uint _tokenid, uint _initialAppraisal) external {
require(userVote[nonce][msg.sender].nftAddress != address(0));
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initialAppraisal;
}
|
///@notice allow user to change nft that they'd like appraised if they win
|
NatSpecSingleLine
|
v0.8.0+commit.c7dfd78e
|
{
"func_code_index": [
2687,
3051
]
}
| 54,630 |
||
BountyAuction
|
contracts/Auction.sol
|
0x5165a6cf99f58aa20032abdf5aaf3f8cd6978617
|
Solidity
|
BountyAuction
|
contract BountyAuction is ReentrancyGuard{
PricingSession public session;
ABCTreasury public treasury;
address public admin;
address public ABCToken;
uint public nonce;
bool public auctionStatus;
bool public firstSession;
/* ======== MAPPINGS ======== */
mapping(uint => uint) public highestBid;
mapping(uint => uint) public endTime;
mapping(uint => address) public winners;
mapping(uint => address) public highestBidder;
mapping(address => uint) bidTime;
mapping(address => uint) tvl;
mapping(uint => mapping(address => AuctionVote)) public userVote;
/* ======== STRUCTS ======== */
struct AuctionVote {
address nftAddress;
uint tokenid;
uint intitialAppraisal;
uint bid;
}
/* ======== Constructor ======== */
constructor() {
admin = msg.sender;
auctionStatus = true;
}
/* ======== ADMIN ======== */
///@notice toggles active status of Auction contract
function toggleAuction() external {
require(msg.sender == admin);
auctionStatus = !auctionStatus;
nonce++;
}
function setSessionContract(address _session) external {
require(msg.sender == admin);
session = PricingSession(payable(_session));
}
function setTreasury(address _treasury) external {
require(msg.sender == admin);
treasury = ABCTreasury(payable(_treasury));
}
function setToken(address _token) external {
require(msg.sender == admin);
ABCToken = _token;
}
function setFirst(bool _state) external {
require(msg.sender == admin);
firstSession = _state;
}
/* ======== AUCTION INTERACTION ======== */
///@notice allow user to submit new bid
function newBid(address _nftAddress, uint _tokenid, uint _initailAppraisal) nonReentrant payable external {
require(
msg.value > highestBid[nonce]
&& auctionStatus
);
bidTime[msg.sender] = block.timestamp;
highestBidder[nonce] = msg.sender;
highestBid[nonce] = msg.value;
tvl[msg.sender] -= userVote[nonce][msg.sender].bid;
(bool sent, ) = payable(msg.sender).call{value: userVote[nonce][msg.sender].bid}("");
require(sent);
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initailAppraisal;
userVote[nonce][msg.sender].bid = msg.value;
tvl[msg.sender] += msg.value;
}
///@notice allow user to change nft that they'd like appraised if they win
function changeInfo(address _nftAddress, uint _tokenid, uint _initialAppraisal) external {
require(userVote[nonce][msg.sender].nftAddress != address(0));
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initialAppraisal;
}
///@notice triggered when auction ends, starts session for highest bidder
function endAuction() nonReentrant external {
if(firstSession) {
require(msg.sender == admin);
}
require(endTime[nonce] < block.timestamp && auctionStatus);
treasury.sendABCToken(address(this), 0.005 ether * session.ethToAbc());
session.createNewSession(
userVote[nonce][highestBidder[nonce]].nftAddress,
userVote[nonce][highestBidder[nonce]].tokenid,
userVote[nonce][highestBidder[nonce]].intitialAppraisal,
86400,
address(0)
);
uint bountySend = userVote[nonce][highestBidder[nonce]].bid;
userVote[nonce][highestBidder[nonce]].bid = 0;
tvl[highestBidder[nonce]] -= bountySend;
endTime[++nonce] = block.timestamp + 86400;
(bool sent, ) = payable(session).call{value: bountySend}("");
require(sent);
}
///@notice allows users to claim non-employed funds
function claim() nonReentrant external {
uint returnValue;
if(highestBidder[nonce] != msg.sender) {
returnValue = tvl[msg.sender];
}
else {
returnValue = tvl[msg.sender] - userVote[nonce][msg.sender].bid;
}
tvl[msg.sender] -= returnValue;
(bool sent, ) = payable(msg.sender).call{value: returnValue}("");
require(sent);
}
}
|
///@author Medici
///@title Bounty auction contract for Abacus
|
NatSpecSingleLine
|
endAuction
|
function endAuction() nonReentrant external {
if(firstSession) {
require(msg.sender == admin);
}
require(endTime[nonce] < block.timestamp && auctionStatus);
treasury.sendABCToken(address(this), 0.005 ether * session.ethToAbc());
session.createNewSession(
userVote[nonce][highestBidder[nonce]].nftAddress,
userVote[nonce][highestBidder[nonce]].tokenid,
userVote[nonce][highestBidder[nonce]].intitialAppraisal,
86400,
address(0)
);
uint bountySend = userVote[nonce][highestBidder[nonce]].bid;
userVote[nonce][highestBidder[nonce]].bid = 0;
tvl[highestBidder[nonce]] -= bountySend;
endTime[++nonce] = block.timestamp + 86400;
(bool sent, ) = payable(session).call{value: bountySend}("");
require(sent);
}
|
///@notice triggered when auction ends, starts session for highest bidder
|
NatSpecSingleLine
|
v0.8.0+commit.c7dfd78e
|
{
"func_code_index": [
3131,
4009
]
}
| 54,631 |
||
BountyAuction
|
contracts/Auction.sol
|
0x5165a6cf99f58aa20032abdf5aaf3f8cd6978617
|
Solidity
|
BountyAuction
|
contract BountyAuction is ReentrancyGuard{
PricingSession public session;
ABCTreasury public treasury;
address public admin;
address public ABCToken;
uint public nonce;
bool public auctionStatus;
bool public firstSession;
/* ======== MAPPINGS ======== */
mapping(uint => uint) public highestBid;
mapping(uint => uint) public endTime;
mapping(uint => address) public winners;
mapping(uint => address) public highestBidder;
mapping(address => uint) bidTime;
mapping(address => uint) tvl;
mapping(uint => mapping(address => AuctionVote)) public userVote;
/* ======== STRUCTS ======== */
struct AuctionVote {
address nftAddress;
uint tokenid;
uint intitialAppraisal;
uint bid;
}
/* ======== Constructor ======== */
constructor() {
admin = msg.sender;
auctionStatus = true;
}
/* ======== ADMIN ======== */
///@notice toggles active status of Auction contract
function toggleAuction() external {
require(msg.sender == admin);
auctionStatus = !auctionStatus;
nonce++;
}
function setSessionContract(address _session) external {
require(msg.sender == admin);
session = PricingSession(payable(_session));
}
function setTreasury(address _treasury) external {
require(msg.sender == admin);
treasury = ABCTreasury(payable(_treasury));
}
function setToken(address _token) external {
require(msg.sender == admin);
ABCToken = _token;
}
function setFirst(bool _state) external {
require(msg.sender == admin);
firstSession = _state;
}
/* ======== AUCTION INTERACTION ======== */
///@notice allow user to submit new bid
function newBid(address _nftAddress, uint _tokenid, uint _initailAppraisal) nonReentrant payable external {
require(
msg.value > highestBid[nonce]
&& auctionStatus
);
bidTime[msg.sender] = block.timestamp;
highestBidder[nonce] = msg.sender;
highestBid[nonce] = msg.value;
tvl[msg.sender] -= userVote[nonce][msg.sender].bid;
(bool sent, ) = payable(msg.sender).call{value: userVote[nonce][msg.sender].bid}("");
require(sent);
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initailAppraisal;
userVote[nonce][msg.sender].bid = msg.value;
tvl[msg.sender] += msg.value;
}
///@notice allow user to change nft that they'd like appraised if they win
function changeInfo(address _nftAddress, uint _tokenid, uint _initialAppraisal) external {
require(userVote[nonce][msg.sender].nftAddress != address(0));
userVote[nonce][msg.sender].nftAddress = _nftAddress;
userVote[nonce][msg.sender].tokenid = _tokenid;
userVote[nonce][msg.sender].intitialAppraisal = _initialAppraisal;
}
///@notice triggered when auction ends, starts session for highest bidder
function endAuction() nonReentrant external {
if(firstSession) {
require(msg.sender == admin);
}
require(endTime[nonce] < block.timestamp && auctionStatus);
treasury.sendABCToken(address(this), 0.005 ether * session.ethToAbc());
session.createNewSession(
userVote[nonce][highestBidder[nonce]].nftAddress,
userVote[nonce][highestBidder[nonce]].tokenid,
userVote[nonce][highestBidder[nonce]].intitialAppraisal,
86400,
address(0)
);
uint bountySend = userVote[nonce][highestBidder[nonce]].bid;
userVote[nonce][highestBidder[nonce]].bid = 0;
tvl[highestBidder[nonce]] -= bountySend;
endTime[++nonce] = block.timestamp + 86400;
(bool sent, ) = payable(session).call{value: bountySend}("");
require(sent);
}
///@notice allows users to claim non-employed funds
function claim() nonReentrant external {
uint returnValue;
if(highestBidder[nonce] != msg.sender) {
returnValue = tvl[msg.sender];
}
else {
returnValue = tvl[msg.sender] - userVote[nonce][msg.sender].bid;
}
tvl[msg.sender] -= returnValue;
(bool sent, ) = payable(msg.sender).call{value: returnValue}("");
require(sent);
}
}
|
///@author Medici
///@title Bounty auction contract for Abacus
|
NatSpecSingleLine
|
claim
|
function claim() nonReentrant external {
uint returnValue;
if(highestBidder[nonce] != msg.sender) {
returnValue = tvl[msg.sender];
}
else {
returnValue = tvl[msg.sender] - userVote[nonce][msg.sender].bid;
}
tvl[msg.sender] -= returnValue;
(bool sent, ) = payable(msg.sender).call{value: returnValue}("");
require(sent);
}
|
///@notice allows users to claim non-employed funds
|
NatSpecSingleLine
|
v0.8.0+commit.c7dfd78e
|
{
"func_code_index": [
4067,
4484
]
}
| 54,632 |
||
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
function () external payable {
buyTokens(_msgSender());
}
|
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
2130,
2206
]
}
| 54,633 |
|
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
token
|
function token() public view returns (IERC20) {
return _token;
}
|
/**
* @return the token being sold.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
2265,
2348
]
}
| 54,634 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
wallet
|
function wallet() public view returns (address payable) {
return _wallet;
}
|
/**
* @return the address where funds are collected.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
2424,
2518
]
}
| 54,635 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
rate
|
function rate() public view returns (uint256) {
return _rate;
}
|
/**
* @return the number of token units a buyer gets per wei.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
2603,
2685
]
}
| 54,636 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
weiRaised
|
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
|
/**
* @return the amount of wei raised.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
2748,
2840
]
}
| 54,637 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
buyTokens
|
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
|
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
3100,
3727
]
}
| 54,638 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
_preValidatePurchase
|
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
|
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
4275,
4660
]
}
| 54,639 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
_postValidatePurchase
|
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
|
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
4958,
5114
]
}
| 54,640 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
_deliverTokens
|
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
|
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
5397,
5541
]
}
| 54,641 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
_processPurchase
|
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
|
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
5810,
5951
]
}
| 54,642 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
_updatePurchasingState
|
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
|
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
6224,
6376
]
}
| 54,643 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
_getTokenAmount
|
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
|
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
6627,
6754
]
}
| 54,644 |
TRACIOSale
|
@openzeppelin/contracts/crowdsale/Crowdsale.sol
|
0x38df38810c19f56748d079bbf42a993178f48627
|
Solidity
|
Crowdsale
|
contract Crowdsale is Context, ReentrancyGuard {
using SafeMath for uint256;
using SafeERC20 for IERC20;
// The token being sold
IERC20 private _token;
// Address where funds are collected
address payable private _wallet;
// How many token units a buyer gets per wei.
// The rate is the conversion between wei and the smallest and indivisible token unit.
// So, if you are using a rate of 1 with a ERC20Detailed token with 3 decimals called TOK
// 1 wei will give you 1 unit, or 0.001 TOK.
uint256 private _rate;
// Amount of wei raised
uint256 private _weiRaised;
/**
* Event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokensPurchased(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
/**
* @param rate Number of token units a buyer gets per wei
* @dev The rate is the conversion between wei and the smallest and indivisible
* token unit. So, if you are using a rate of 1 with a ERC20Detailed token
* with 3 decimals called TOK, 1 wei will give you 1 unit, or 0.001 TOK.
* @param wallet Address where collected funds will be forwarded to
* @param token Address of the token being sold
*/
constructor (uint256 rate, address payable wallet, IERC20 token) public {
require(rate > 0, "Crowdsale: rate is 0");
require(wallet != address(0), "Crowdsale: wallet is the zero address");
require(address(token) != address(0), "Crowdsale: token is the zero address");
_rate = rate;
_wallet = wallet;
_token = token;
}
/**
* @dev fallback function ***DO NOT OVERRIDE***
* Note that other contracts will transfer funds with a base gas stipend
* of 2300, which is not enough to call buyTokens. Consider calling
* buyTokens directly when purchasing tokens from a contract.
*/
function () external payable {
buyTokens(_msgSender());
}
/**
* @return the token being sold.
*/
function token() public view returns (IERC20) {
return _token;
}
/**
* @return the address where funds are collected.
*/
function wallet() public view returns (address payable) {
return _wallet;
}
/**
* @return the number of token units a buyer gets per wei.
*/
function rate() public view returns (uint256) {
return _rate;
}
/**
* @return the amount of wei raised.
*/
function weiRaised() public view returns (uint256) {
return _weiRaised;
}
/**
* @dev low level token purchase ***DO NOT OVERRIDE***
* This function has a non-reentrancy guard, so it shouldn't be called by
* another `nonReentrant` function.
* @param beneficiary Recipient of the token purchase
*/
function buyTokens(address beneficiary) public nonReentrant payable {
uint256 weiAmount = msg.value;
_preValidatePurchase(beneficiary, weiAmount);
// calculate token amount to be created
uint256 tokens = _getTokenAmount(weiAmount);
// update state
_weiRaised = _weiRaised.add(weiAmount);
_processPurchase(beneficiary, tokens);
emit TokensPurchased(_msgSender(), beneficiary, weiAmount, tokens);
_updatePurchasingState(beneficiary, weiAmount);
_forwardFunds();
_postValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
* Use `super` in contracts that inherit from Crowdsale to extend their validations.
* Example from CappedCrowdsale.sol's _preValidatePurchase method:
* super._preValidatePurchase(beneficiary, weiAmount);
* require(weiRaised().add(weiAmount) <= cap);
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
require(weiAmount != 0, "Crowdsale: weiAmount is 0");
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
}
/**
* @dev Validation of an executed purchase. Observe state and use revert statements to undo rollback when valid
* conditions are not met.
* @param beneficiary Address performing the token purchase
* @param weiAmount Value in wei involved in the purchase
*/
function _postValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Source of tokens. Override this method to modify the way in which the crowdsale ultimately gets and sends
* its tokens.
* @param beneficiary Address performing the token purchase
* @param tokenAmount Number of tokens to be emitted
*/
function _deliverTokens(address beneficiary, uint256 tokenAmount) internal {
_token.safeTransfer(beneficiary, tokenAmount);
}
/**
* @dev Executed when a purchase has been validated and is ready to be executed. Doesn't necessarily emit/send
* tokens.
* @param beneficiary Address receiving the tokens
* @param tokenAmount Number of tokens to be purchased
*/
function _processPurchase(address beneficiary, uint256 tokenAmount) internal {
_deliverTokens(beneficiary, tokenAmount);
}
/**
* @dev Override for extensions that require an internal state to check for validity (current user contributions,
* etc.)
* @param beneficiary Address receiving the tokens
* @param weiAmount Value in wei involved in the purchase
*/
function _updatePurchasingState(address beneficiary, uint256 weiAmount) internal {
// solhint-disable-previous-line no-empty-blocks
}
/**
* @dev Override to extend the way in which ether is converted to tokens.
* @param weiAmount Value in wei to be converted into tokens
* @return Number of tokens that can be purchased with the specified _weiAmount
*/
function _getTokenAmount(uint256 weiAmount) internal view returns (uint256) {
return weiAmount.mul(_rate);
}
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
}
|
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale,
* allowing investors to purchase tokens with ether. This contract implements
* such functionality in its most fundamental form and can be extended to provide additional
* functionality and/or custom behavior.
* The external interface represents the basic interface for purchasing tokens, and conforms
* the base architecture for crowdsales. It is *not* intended to be modified / overridden.
* The internal interface conforms the extensible and modifiable surface of crowdsales. Override
* the methods to add functionality. Consider using 'super' where appropriate to concatenate
* behavior.
*/
|
NatSpecMultiLine
|
_forwardFunds
|
function _forwardFunds() internal {
_wallet.transfer(msg.value);
}
|
/**
* @dev Determines how ETH is stored/forwarded on purchases.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://2781beccfb7ea08d7ff63bd2d881abb1f0f8be283f813bdf6a9c97974f983a2e
|
{
"func_code_index": [
6841,
6926
]
}
| 54,645 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
Context
|
contract Context {
// Empty internal constructor, to prevent people from mistakenly deploying
// an instance of this contract, which should be used via inheritance.
constructor () internal { }
// solhint-disable-previous-line no-empty-blocks
function _msgSender() internal view returns (address payable) {
return msg.sender;
}
function _msgData() internal view returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
|
/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with GSN meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
|
Comment
|
_msgSender
|
function _msgSender() internal view returns (address payable) {
return msg.sender;
}
|
// solhint-disable-previous-line no-empty-blocks
|
LineComment
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
257,
352
]
}
| 54,646 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
|
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
|
NatSpecMultiLine
|
add
|
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
|
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
241,
411
]
}
| 54,647 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
|
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
|
NatSpecMultiLine
|
sub
|
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
|
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
671,
804
]
}
| 54,648 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
|
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
|
NatSpecMultiLine
|
sub
|
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
|
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
1124,
1305
]
}
| 54,649 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
|
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
|
NatSpecMultiLine
|
mul
|
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
|
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
1541,
1975
]
}
| 54,650 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
|
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
|
NatSpecMultiLine
|
div
|
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
|
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
2426,
2555
]
}
| 54,651 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
|
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
|
NatSpecMultiLine
|
div
|
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
|
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
3066,
3392
]
}
| 54,652 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
|
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
|
NatSpecMultiLine
|
mod
|
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
|
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
3832,
3959
]
}
| 54,653 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
SafeMath
|
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
* - Subtraction cannot overflow.
*
* _Available since v2.4.0._
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
|
/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
|
NatSpecMultiLine
|
mod
|
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
|
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
* - The divisor cannot be zero.
*
* _Available since v2.4.0._
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
4459,
4618
]
}
| 54,654 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
IERC20
|
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
|
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see {ERC20Detailed}.
*/
|
NatSpecMultiLine
|
totalSupply
|
function totalSupply() external view returns (uint256);
|
/**
* @dev Returns the amount of tokens in existence.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
90,
148
]
}
| 54,655 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
IERC20
|
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
|
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see {ERC20Detailed}.
*/
|
NatSpecMultiLine
|
balanceOf
|
function balanceOf(address account) external view returns (uint256);
|
/**
* @dev Returns the amount of tokens owned by `account`.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
227,
298
]
}
| 54,656 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
IERC20
|
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
|
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see {ERC20Detailed}.
*/
|
NatSpecMultiLine
|
transfer
|
function transfer(address recipient, uint256 amount) external returns (bool);
|
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
514,
594
]
}
| 54,657 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
IERC20
|
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
|
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see {ERC20Detailed}.
*/
|
NatSpecMultiLine
|
allowance
|
function allowance(address owner, address spender) external view returns (uint256);
|
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
865,
951
]
}
| 54,658 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
IERC20
|
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
|
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see {ERC20Detailed}.
*/
|
NatSpecMultiLine
|
approve
|
function approve(address spender, uint256 amount) external returns (bool);
|
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
1600,
1677
]
}
| 54,659 |
LGT
|
LGT.sol
|
0xbe960343df2a6ad4eeefe5b655df8591efd30564
|
Solidity
|
IERC20
|
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
|
/**
* @dev Interface of the ERC20 standard as defined in the EIP. Does not include
* the optional functions; to access them see {ERC20Detailed}.
*/
|
NatSpecMultiLine
|
transferFrom
|
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
|
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
|
NatSpecMultiLine
|
v0.5.17+commit.d19bba13
|
MIT
|
bzzr://f53df6fd887ac457db38f009c876b022d2a7d28cae9823d0796f70dd669dab5f
|
{
"func_code_index": [
1980,
2080
]
}
| 54,660 |
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