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V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | _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 | v0.8.1+commit.df193b15 | {
"func_code_index": [
8781,
8894
]
} | 4,300 |
||||
V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | v3be | function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
| // emits good v3bes | LineComment | v0.8.1+commit.df193b15 | {
"func_code_index": [
9750,
9961
]
} | 4,301 |
||||
V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | hasClaimed | function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
| // checks if a wallet has claimed airdrop | LineComment | v0.8.1+commit.df193b15 | {
"func_code_index": [
10970,
11082
]
} | 4,302 |
||||
V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | _safeMint | function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
| /**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/ | NatSpecMultiLine | v0.8.1+commit.df193b15 | {
"func_code_index": [
11637,
11798
]
} | 4,303 |
||||
V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | _mint | function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/ | NatSpecMultiLine | v0.8.1+commit.df193b15 | {
"func_code_index": [
12041,
13411
]
} | 4,304 |
||||
V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | _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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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 | v0.8.1+commit.df193b15 | {
"func_code_index": [
13649,
15477
]
} | 4,305 |
||||
V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | _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 | v0.8.1+commit.df193b15 | {
"func_code_index": [
15584,
15777
]
} | 4,306 |
||||
V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | _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 ownefr 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 | v0.8.1+commit.df193b15 | {
"func_code_index": [
16327,
17114
]
} | 4,307 |
||||
V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | _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 | v0.8.1+commit.df193b15 | {
"func_code_index": [
17584,
17742
]
} | 4,308 |
||||
V3Artifact | contracts/V3Artifact.sol | 0x5647717e536e4a6d3e6cde2d848fb6d933db7acb | Solidity | V3Artifact | contract V3Artifact is Context, ERC165, IERC721, IERC721Metadata, IERC721Enumerable, Ownable {
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
// merkle root for airdrop
bytes32 public immutable merkleRoot = 0xb89e5dc927d0daa49a33f00f520d9e2eb050c5b31a58f59a0f3bc02dfad66f7e;
uint256 internal currentIndex = 0;
// mint price
uint256 public _price = 69000000000000000;
// Token name
string private _name;
address private _owner = msg.sender;
bool public _isClaimOpen = true;
// 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) internal _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;
// has wallet claimed the airdrop
mapping(address => bool) public _hasWalletClaimed;
event Claimed(address account, uint256 amount);
string public _baseURIPath = 'ipfs://QmVLCj5rs43W46zM1D2LcE9RgnEwGsvV15YY974pjR3Ar3/';
uint256 public _totalClaimed = 0;
bool public _isMintLive = true;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @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(totalSupply). 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);
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
require(_exists(tokenId), 'ERC721A: owner query for nonexistent token');
for (uint256 curr = tokenId; ; 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, tokenId.toString(), '.json')) : '';
}
/**
* @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 _baseURIPath;
}
function setBaseURI(string memory newPath) external onlyOwner {
_baseURIPath = newPath;
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = V3Artifact.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'
);
}
function setPrice(uint256 newPrice) external {
require(msg.sender == _owner);
_price = newPrice;
}
/**
* @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 mint_(address to, uint256 quantity) external {
require(msg.sender == _owner);
_safeMint(to, quantity);
}
function setMintIsLive(bool flag) external {
require(msg.sender == _owner);
_isMintLive = flag;
}
function mint(address to, uint256 quantity) external payable {
require(quantity <= 30 && quantity > 0);
require(_isMintLive, "mint must be live");
require(_price * quantity == msg.value);
// 1411 total artifacts - total claimed = total unclaimed artifacts. leave rest for reserved claimers.
uint256 totalUnclaimed = 1411 - _totalClaimed;
// only allow mints
require(currentIndex + quantity <= 5000 - totalUnclaimed);
payable(_owner).transfer(msg.value);
_safeMint(to, quantity);
}
// emits good v3bes
function v3be(uint256 amountV3bes) external onlyOwner {
for (uint i = 0 ;i<amountV3bes;i++) {
emit Transfer(address(0), 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, 42069);
}
}
function claim(
address account,
uint256 amount,
bytes32[] calldata merkleProof
) public {
require(_isClaimOpen);
require(currentIndex + amount <= 5000);
// Verify the merkle proof.
bytes32 node = keccak256(abi.encodePacked(account, amount));
require(account == msg.sender);
require(!_hasWalletClaimed[msg.sender]);
require(
MerkleProof.verify(merkleProof, merkleRoot, node),
"MerkleDistributor: Invalid proof."
);
_safeMint(account, amount);
_hasWalletClaimed[msg.sender] = true;
// do your logic accordingly here
_totalClaimed += amount;
emit Claimed(account, amount);
}
function isClaimOpen() public view returns (bool) {
return _isClaimOpen;
}
function setClaimIsOpen(bool isOpen) external {
require(msg.sender == _owner);
_isClaimOpen = isOpen;
}
// checks if a wallet has claimed airdrop
function hasClaimed(address addr) public view returns (bool) {
return _hasWalletClaimed[addr];
}
function getTotalClaimed() public view returns(uint256) {
return _totalClaimed;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, '');
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {
_mint(to, quantity, _data, true);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(
address to,
uint256 quantity,
bytes memory _data,
bool safe
) 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 > 0, 'ERC721A: quantity must be greater than 0');
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
_addressData[to].balance += uint128(quantity);
_addressData[to].numberMinted += uint128(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
if (safe) {
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);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
}
_ownerships[tokenId].addr = to;
_ownerships[tokenId].startTimestamp = 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].addr = prevOwnership.addr;
_ownerships[nextTokenId].startTimestamp = 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);
}
/**
* @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 ownefr 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 {}
} | _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 | v0.8.1+commit.df193b15 | {
"func_code_index": [
18136,
18293
]
} | 4,309 |
||||
HegicStaking | contracts/Facade/Facade.sol | 0x956bed5f95d3cfc16581c3892931c0d110376f9f | Solidity | Facade | contract Facade is Ownable {
using SafeERC20 for IERC20;
IWETH public immutable WETH;
IUniswapV2Router01 public immutable exchange;
IOptionsManager public immutable optionsManager;
address public _trustedForwarder;
constructor(
IWETH weth,
IUniswapV2Router01 router,
IOptionsManager manager,
address trustedForwarder
) {
WETH = weth;
exchange = router;
_trustedForwarder = trustedForwarder;
optionsManager = manager;
}
/**
* @notice Used for calculating the option price (the premium) and using
* the swap router (if needed) to convert the tokens with which the user
* pays the premium into the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param total The total premium
* @param baseTotal The part of the premium that
* is distributed among the liquidity providers
* @param settlementFee The part of the premium that
* is distributed among the HEGIC staking participants
**/
function getOptionPrice(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath
)
public
view
returns (
uint256 total,
uint256 baseTotal,
uint256 settlementFee,
uint256 premium
)
{
(uint256 _baseTotal, uint256 baseSettlementFee, uint256 basePremium) =
getBaseOptionCost(pool, period, amount, strike);
if (swappath.length > 1)
total = exchange.getAmountsIn(_baseTotal, swappath)[0];
else total = _baseTotal;
baseTotal = _baseTotal;
settlementFee = (total * baseSettlementFee) / baseTotal;
premium = (total * basePremium) / baseTotal;
}
/**
* @notice Used for calculating the option price (the premium)
* in the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
**/
function getBaseOptionCost(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike
)
public
view
returns (
uint256 total,
uint256 settlementFee,
uint256 premium
)
{
(settlementFee, premium) = pool.calculateTotalPremium(
period,
amount,
strike
);
total = premium + settlementFee;
}
/**
* @notice Used for approving the pools contracts addresses.
**/
function poolApprove(IHegicPool pool) external {
pool.token().safeApprove(address(pool), 0);
pool.token().safeApprove(address(pool), type(uint256).max);
}
/**
* @notice Used for buying the option contract and converting
* the buyer's tokens (the total premium) into the token
* in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param acceptablePrice The highest acceptable price
**/
function createOption(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath,
uint256 acceptablePrice
) external payable {
address buyer = _msgSender();
(uint256 optionPrice, uint256 rawOptionPrice, , ) =
getOptionPrice(pool, period, amount, strike, swappath);
require(
optionPrice <= acceptablePrice,
"Facade Error: The option price is too high"
);
IERC20 paymentToken = IERC20(swappath[0]);
paymentToken.safeTransferFrom(buyer, address(this), optionPrice);
if (swappath.length > 1) {
if (
paymentToken.allowance(address(this), address(exchange)) <
optionPrice
) {
paymentToken.safeApprove(address(exchange), 0);
paymentToken.safeApprove(address(exchange), type(uint256).max);
}
exchange.swapTokensForExactTokens(
rawOptionPrice,
optionPrice,
swappath,
address(this),
block.timestamp
);
}
pool.sellOption(buyer, period, amount, strike);
}
/**
* @notice Used for converting the liquidity provider's Ether (ETH)
* into Wrapped Ether (WETH) and providing the funds into the pool.
* @param hedged The liquidity tranche type: hedged or unhedged (classic)
**/
function provideEthToPool(
IHegicPool pool,
bool hedged,
uint256 minShare
) external payable returns (uint256) {
WETH.deposit{value: msg.value}();
if (WETH.allowance(address(this), address(pool)) < msg.value)
WETH.approve(address(pool), type(uint256).max);
return pool.provideFrom(msg.sender, msg.value, hedged, minShare);
}
/**
* @notice Unlocks the array of options.
* @param optionIDs The array of options
**/
function unlockAll(IHegicPool pool, uint256[] calldata optionIDs) external {
uint256 arrayLength = optionIDs.length;
for (uint256 i = 0; i < arrayLength; i++) {
pool.unlock(optionIDs[i]);
}
}
/**
* @notice Used for granting the GSN (Gas Station Network) contract
* the permission to pay the gas (transaction) fees for the users.
* @param forwarder GSN (Gas Station Network) contract address
**/
function isTrustedForwarder(address forwarder) public view returns (bool) {
return forwarder == _trustedForwarder;
}
function claimAllStakingProfits(
IHegicStaking[] calldata stakings,
address account
) external {
uint256 arrayLength = stakings.length;
for (uint256 i = 0; i < arrayLength; i++) {
IHegicStaking s = stakings[i];
if (s.profitOf(account) > 0) s.claimProfits(account);
}
}
function _msgSender() internal view override returns (address signer) {
signer = msg.sender;
if (msg.data.length >= 20 && isTrustedForwarder(signer)) {
assembly {
signer := shr(96, calldataload(sub(calldatasize(), 20)))
}
}
}
function exercise(uint256 optionId) external {
require(
optionsManager.isApprovedOrOwner(_msgSender(), optionId),
"Facade Error: _msgSender is not eligible to exercise the option"
);
IHegicPool(optionsManager.tokenPool(optionId)).exercise(optionId);
}
} | /**
* @author 0mllwntrmt3
* @title Hegic Protocol V8888 Facade Contract
* @notice The contract that calculates the options prices,
* conducts the process of buying options, converts the premiums
* into the token that the pool is denominated in and grants
* permissions to the contracts such as GSN (Gas Station Network).
**/ | NatSpecMultiLine | getOptionPrice | function getOptionPrice(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath
)
public
view
returns (
uint256 total,
uint256 baseTotal,
uint256 settlementFee,
uint256 premium
)
{
(uint256 _baseTotal, uint256 baseSettlementFee, uint256 basePremium) =
getBaseOptionCost(pool, period, amount, strike);
if (swappath.length > 1)
total = exchange.getAmountsIn(_baseTotal, swappath)[0];
else total = _baseTotal;
baseTotal = _baseTotal;
settlementFee = (total * baseSettlementFee) / baseTotal;
premium = (total * basePremium) / baseTotal;
}
| /**
* @notice Used for calculating the option price (the premium) and using
* the swap router (if needed) to convert the tokens with which the user
* pays the premium into the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param total The total premium
* @param baseTotal The part of the premium that
* is distributed among the liquidity providers
* @param settlementFee The part of the premium that
* is distributed among the HEGIC staking participants
**/ | NatSpecMultiLine | v0.8.6+commit.11564f7e | GNU LGPLv3 | ipfs://9908360c5f827822f17d695dd790dd5c9756c700e0edc1d7bc0c3a36500e2b17 | {
"func_code_index": [
1136,
1917
]
} | 4,310 |
HegicStaking | contracts/Facade/Facade.sol | 0x956bed5f95d3cfc16581c3892931c0d110376f9f | Solidity | Facade | contract Facade is Ownable {
using SafeERC20 for IERC20;
IWETH public immutable WETH;
IUniswapV2Router01 public immutable exchange;
IOptionsManager public immutable optionsManager;
address public _trustedForwarder;
constructor(
IWETH weth,
IUniswapV2Router01 router,
IOptionsManager manager,
address trustedForwarder
) {
WETH = weth;
exchange = router;
_trustedForwarder = trustedForwarder;
optionsManager = manager;
}
/**
* @notice Used for calculating the option price (the premium) and using
* the swap router (if needed) to convert the tokens with which the user
* pays the premium into the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param total The total premium
* @param baseTotal The part of the premium that
* is distributed among the liquidity providers
* @param settlementFee The part of the premium that
* is distributed among the HEGIC staking participants
**/
function getOptionPrice(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath
)
public
view
returns (
uint256 total,
uint256 baseTotal,
uint256 settlementFee,
uint256 premium
)
{
(uint256 _baseTotal, uint256 baseSettlementFee, uint256 basePremium) =
getBaseOptionCost(pool, period, amount, strike);
if (swappath.length > 1)
total = exchange.getAmountsIn(_baseTotal, swappath)[0];
else total = _baseTotal;
baseTotal = _baseTotal;
settlementFee = (total * baseSettlementFee) / baseTotal;
premium = (total * basePremium) / baseTotal;
}
/**
* @notice Used for calculating the option price (the premium)
* in the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
**/
function getBaseOptionCost(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike
)
public
view
returns (
uint256 total,
uint256 settlementFee,
uint256 premium
)
{
(settlementFee, premium) = pool.calculateTotalPremium(
period,
amount,
strike
);
total = premium + settlementFee;
}
/**
* @notice Used for approving the pools contracts addresses.
**/
function poolApprove(IHegicPool pool) external {
pool.token().safeApprove(address(pool), 0);
pool.token().safeApprove(address(pool), type(uint256).max);
}
/**
* @notice Used for buying the option contract and converting
* the buyer's tokens (the total premium) into the token
* in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param acceptablePrice The highest acceptable price
**/
function createOption(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath,
uint256 acceptablePrice
) external payable {
address buyer = _msgSender();
(uint256 optionPrice, uint256 rawOptionPrice, , ) =
getOptionPrice(pool, period, amount, strike, swappath);
require(
optionPrice <= acceptablePrice,
"Facade Error: The option price is too high"
);
IERC20 paymentToken = IERC20(swappath[0]);
paymentToken.safeTransferFrom(buyer, address(this), optionPrice);
if (swappath.length > 1) {
if (
paymentToken.allowance(address(this), address(exchange)) <
optionPrice
) {
paymentToken.safeApprove(address(exchange), 0);
paymentToken.safeApprove(address(exchange), type(uint256).max);
}
exchange.swapTokensForExactTokens(
rawOptionPrice,
optionPrice,
swappath,
address(this),
block.timestamp
);
}
pool.sellOption(buyer, period, amount, strike);
}
/**
* @notice Used for converting the liquidity provider's Ether (ETH)
* into Wrapped Ether (WETH) and providing the funds into the pool.
* @param hedged The liquidity tranche type: hedged or unhedged (classic)
**/
function provideEthToPool(
IHegicPool pool,
bool hedged,
uint256 minShare
) external payable returns (uint256) {
WETH.deposit{value: msg.value}();
if (WETH.allowance(address(this), address(pool)) < msg.value)
WETH.approve(address(pool), type(uint256).max);
return pool.provideFrom(msg.sender, msg.value, hedged, minShare);
}
/**
* @notice Unlocks the array of options.
* @param optionIDs The array of options
**/
function unlockAll(IHegicPool pool, uint256[] calldata optionIDs) external {
uint256 arrayLength = optionIDs.length;
for (uint256 i = 0; i < arrayLength; i++) {
pool.unlock(optionIDs[i]);
}
}
/**
* @notice Used for granting the GSN (Gas Station Network) contract
* the permission to pay the gas (transaction) fees for the users.
* @param forwarder GSN (Gas Station Network) contract address
**/
function isTrustedForwarder(address forwarder) public view returns (bool) {
return forwarder == _trustedForwarder;
}
function claimAllStakingProfits(
IHegicStaking[] calldata stakings,
address account
) external {
uint256 arrayLength = stakings.length;
for (uint256 i = 0; i < arrayLength; i++) {
IHegicStaking s = stakings[i];
if (s.profitOf(account) > 0) s.claimProfits(account);
}
}
function _msgSender() internal view override returns (address signer) {
signer = msg.sender;
if (msg.data.length >= 20 && isTrustedForwarder(signer)) {
assembly {
signer := shr(96, calldataload(sub(calldatasize(), 20)))
}
}
}
function exercise(uint256 optionId) external {
require(
optionsManager.isApprovedOrOwner(_msgSender(), optionId),
"Facade Error: _msgSender is not eligible to exercise the option"
);
IHegicPool(optionsManager.tokenPool(optionId)).exercise(optionId);
}
} | /**
* @author 0mllwntrmt3
* @title Hegic Protocol V8888 Facade Contract
* @notice The contract that calculates the options prices,
* conducts the process of buying options, converts the premiums
* into the token that the pool is denominated in and grants
* permissions to the contracts such as GSN (Gas Station Network).
**/ | NatSpecMultiLine | getBaseOptionCost | function getBaseOptionCost(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike
)
public
view
returns (
uint256 total,
uint256 settlementFee,
uint256 premium
)
{
(settlementFee, premium) = pool.calculateTotalPremium(
period,
amount,
strike
);
total = premium + settlementFee;
}
| /**
* @notice Used for calculating the option price (the premium)
* in the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
**/ | NatSpecMultiLine | v0.8.6+commit.11564f7e | GNU LGPLv3 | ipfs://9908360c5f827822f17d695dd790dd5c9756c700e0edc1d7bc0c3a36500e2b17 | {
"func_code_index": [
2172,
2637
]
} | 4,311 |
HegicStaking | contracts/Facade/Facade.sol | 0x956bed5f95d3cfc16581c3892931c0d110376f9f | Solidity | Facade | contract Facade is Ownable {
using SafeERC20 for IERC20;
IWETH public immutable WETH;
IUniswapV2Router01 public immutable exchange;
IOptionsManager public immutable optionsManager;
address public _trustedForwarder;
constructor(
IWETH weth,
IUniswapV2Router01 router,
IOptionsManager manager,
address trustedForwarder
) {
WETH = weth;
exchange = router;
_trustedForwarder = trustedForwarder;
optionsManager = manager;
}
/**
* @notice Used for calculating the option price (the premium) and using
* the swap router (if needed) to convert the tokens with which the user
* pays the premium into the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param total The total premium
* @param baseTotal The part of the premium that
* is distributed among the liquidity providers
* @param settlementFee The part of the premium that
* is distributed among the HEGIC staking participants
**/
function getOptionPrice(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath
)
public
view
returns (
uint256 total,
uint256 baseTotal,
uint256 settlementFee,
uint256 premium
)
{
(uint256 _baseTotal, uint256 baseSettlementFee, uint256 basePremium) =
getBaseOptionCost(pool, period, amount, strike);
if (swappath.length > 1)
total = exchange.getAmountsIn(_baseTotal, swappath)[0];
else total = _baseTotal;
baseTotal = _baseTotal;
settlementFee = (total * baseSettlementFee) / baseTotal;
premium = (total * basePremium) / baseTotal;
}
/**
* @notice Used for calculating the option price (the premium)
* in the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
**/
function getBaseOptionCost(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike
)
public
view
returns (
uint256 total,
uint256 settlementFee,
uint256 premium
)
{
(settlementFee, premium) = pool.calculateTotalPremium(
period,
amount,
strike
);
total = premium + settlementFee;
}
/**
* @notice Used for approving the pools contracts addresses.
**/
function poolApprove(IHegicPool pool) external {
pool.token().safeApprove(address(pool), 0);
pool.token().safeApprove(address(pool), type(uint256).max);
}
/**
* @notice Used for buying the option contract and converting
* the buyer's tokens (the total premium) into the token
* in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param acceptablePrice The highest acceptable price
**/
function createOption(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath,
uint256 acceptablePrice
) external payable {
address buyer = _msgSender();
(uint256 optionPrice, uint256 rawOptionPrice, , ) =
getOptionPrice(pool, period, amount, strike, swappath);
require(
optionPrice <= acceptablePrice,
"Facade Error: The option price is too high"
);
IERC20 paymentToken = IERC20(swappath[0]);
paymentToken.safeTransferFrom(buyer, address(this), optionPrice);
if (swappath.length > 1) {
if (
paymentToken.allowance(address(this), address(exchange)) <
optionPrice
) {
paymentToken.safeApprove(address(exchange), 0);
paymentToken.safeApprove(address(exchange), type(uint256).max);
}
exchange.swapTokensForExactTokens(
rawOptionPrice,
optionPrice,
swappath,
address(this),
block.timestamp
);
}
pool.sellOption(buyer, period, amount, strike);
}
/**
* @notice Used for converting the liquidity provider's Ether (ETH)
* into Wrapped Ether (WETH) and providing the funds into the pool.
* @param hedged The liquidity tranche type: hedged or unhedged (classic)
**/
function provideEthToPool(
IHegicPool pool,
bool hedged,
uint256 minShare
) external payable returns (uint256) {
WETH.deposit{value: msg.value}();
if (WETH.allowance(address(this), address(pool)) < msg.value)
WETH.approve(address(pool), type(uint256).max);
return pool.provideFrom(msg.sender, msg.value, hedged, minShare);
}
/**
* @notice Unlocks the array of options.
* @param optionIDs The array of options
**/
function unlockAll(IHegicPool pool, uint256[] calldata optionIDs) external {
uint256 arrayLength = optionIDs.length;
for (uint256 i = 0; i < arrayLength; i++) {
pool.unlock(optionIDs[i]);
}
}
/**
* @notice Used for granting the GSN (Gas Station Network) contract
* the permission to pay the gas (transaction) fees for the users.
* @param forwarder GSN (Gas Station Network) contract address
**/
function isTrustedForwarder(address forwarder) public view returns (bool) {
return forwarder == _trustedForwarder;
}
function claimAllStakingProfits(
IHegicStaking[] calldata stakings,
address account
) external {
uint256 arrayLength = stakings.length;
for (uint256 i = 0; i < arrayLength; i++) {
IHegicStaking s = stakings[i];
if (s.profitOf(account) > 0) s.claimProfits(account);
}
}
function _msgSender() internal view override returns (address signer) {
signer = msg.sender;
if (msg.data.length >= 20 && isTrustedForwarder(signer)) {
assembly {
signer := shr(96, calldataload(sub(calldatasize(), 20)))
}
}
}
function exercise(uint256 optionId) external {
require(
optionsManager.isApprovedOrOwner(_msgSender(), optionId),
"Facade Error: _msgSender is not eligible to exercise the option"
);
IHegicPool(optionsManager.tokenPool(optionId)).exercise(optionId);
}
} | /**
* @author 0mllwntrmt3
* @title Hegic Protocol V8888 Facade Contract
* @notice The contract that calculates the options prices,
* conducts the process of buying options, converts the premiums
* into the token that the pool is denominated in and grants
* permissions to the contracts such as GSN (Gas Station Network).
**/ | NatSpecMultiLine | poolApprove | function poolApprove(IHegicPool pool) external {
pool.token().safeApprove(address(pool), 0);
pool.token().safeApprove(address(pool), type(uint256).max);
}
| /**
* @notice Used for approving the pools contracts addresses.
**/ | NatSpecMultiLine | v0.8.6+commit.11564f7e | GNU LGPLv3 | ipfs://9908360c5f827822f17d695dd790dd5c9756c700e0edc1d7bc0c3a36500e2b17 | {
"func_code_index": [
2721,
2899
]
} | 4,312 |
HegicStaking | contracts/Facade/Facade.sol | 0x956bed5f95d3cfc16581c3892931c0d110376f9f | Solidity | Facade | contract Facade is Ownable {
using SafeERC20 for IERC20;
IWETH public immutable WETH;
IUniswapV2Router01 public immutable exchange;
IOptionsManager public immutable optionsManager;
address public _trustedForwarder;
constructor(
IWETH weth,
IUniswapV2Router01 router,
IOptionsManager manager,
address trustedForwarder
) {
WETH = weth;
exchange = router;
_trustedForwarder = trustedForwarder;
optionsManager = manager;
}
/**
* @notice Used for calculating the option price (the premium) and using
* the swap router (if needed) to convert the tokens with which the user
* pays the premium into the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param total The total premium
* @param baseTotal The part of the premium that
* is distributed among the liquidity providers
* @param settlementFee The part of the premium that
* is distributed among the HEGIC staking participants
**/
function getOptionPrice(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath
)
public
view
returns (
uint256 total,
uint256 baseTotal,
uint256 settlementFee,
uint256 premium
)
{
(uint256 _baseTotal, uint256 baseSettlementFee, uint256 basePremium) =
getBaseOptionCost(pool, period, amount, strike);
if (swappath.length > 1)
total = exchange.getAmountsIn(_baseTotal, swappath)[0];
else total = _baseTotal;
baseTotal = _baseTotal;
settlementFee = (total * baseSettlementFee) / baseTotal;
premium = (total * basePremium) / baseTotal;
}
/**
* @notice Used for calculating the option price (the premium)
* in the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
**/
function getBaseOptionCost(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike
)
public
view
returns (
uint256 total,
uint256 settlementFee,
uint256 premium
)
{
(settlementFee, premium) = pool.calculateTotalPremium(
period,
amount,
strike
);
total = premium + settlementFee;
}
/**
* @notice Used for approving the pools contracts addresses.
**/
function poolApprove(IHegicPool pool) external {
pool.token().safeApprove(address(pool), 0);
pool.token().safeApprove(address(pool), type(uint256).max);
}
/**
* @notice Used for buying the option contract and converting
* the buyer's tokens (the total premium) into the token
* in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param acceptablePrice The highest acceptable price
**/
function createOption(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath,
uint256 acceptablePrice
) external payable {
address buyer = _msgSender();
(uint256 optionPrice, uint256 rawOptionPrice, , ) =
getOptionPrice(pool, period, amount, strike, swappath);
require(
optionPrice <= acceptablePrice,
"Facade Error: The option price is too high"
);
IERC20 paymentToken = IERC20(swappath[0]);
paymentToken.safeTransferFrom(buyer, address(this), optionPrice);
if (swappath.length > 1) {
if (
paymentToken.allowance(address(this), address(exchange)) <
optionPrice
) {
paymentToken.safeApprove(address(exchange), 0);
paymentToken.safeApprove(address(exchange), type(uint256).max);
}
exchange.swapTokensForExactTokens(
rawOptionPrice,
optionPrice,
swappath,
address(this),
block.timestamp
);
}
pool.sellOption(buyer, period, amount, strike);
}
/**
* @notice Used for converting the liquidity provider's Ether (ETH)
* into Wrapped Ether (WETH) and providing the funds into the pool.
* @param hedged The liquidity tranche type: hedged or unhedged (classic)
**/
function provideEthToPool(
IHegicPool pool,
bool hedged,
uint256 minShare
) external payable returns (uint256) {
WETH.deposit{value: msg.value}();
if (WETH.allowance(address(this), address(pool)) < msg.value)
WETH.approve(address(pool), type(uint256).max);
return pool.provideFrom(msg.sender, msg.value, hedged, minShare);
}
/**
* @notice Unlocks the array of options.
* @param optionIDs The array of options
**/
function unlockAll(IHegicPool pool, uint256[] calldata optionIDs) external {
uint256 arrayLength = optionIDs.length;
for (uint256 i = 0; i < arrayLength; i++) {
pool.unlock(optionIDs[i]);
}
}
/**
* @notice Used for granting the GSN (Gas Station Network) contract
* the permission to pay the gas (transaction) fees for the users.
* @param forwarder GSN (Gas Station Network) contract address
**/
function isTrustedForwarder(address forwarder) public view returns (bool) {
return forwarder == _trustedForwarder;
}
function claimAllStakingProfits(
IHegicStaking[] calldata stakings,
address account
) external {
uint256 arrayLength = stakings.length;
for (uint256 i = 0; i < arrayLength; i++) {
IHegicStaking s = stakings[i];
if (s.profitOf(account) > 0) s.claimProfits(account);
}
}
function _msgSender() internal view override returns (address signer) {
signer = msg.sender;
if (msg.data.length >= 20 && isTrustedForwarder(signer)) {
assembly {
signer := shr(96, calldataload(sub(calldatasize(), 20)))
}
}
}
function exercise(uint256 optionId) external {
require(
optionsManager.isApprovedOrOwner(_msgSender(), optionId),
"Facade Error: _msgSender is not eligible to exercise the option"
);
IHegicPool(optionsManager.tokenPool(optionId)).exercise(optionId);
}
} | /**
* @author 0mllwntrmt3
* @title Hegic Protocol V8888 Facade Contract
* @notice The contract that calculates the options prices,
* conducts the process of buying options, converts the premiums
* into the token that the pool is denominated in and grants
* permissions to the contracts such as GSN (Gas Station Network).
**/ | NatSpecMultiLine | createOption | function createOption(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath,
uint256 acceptablePrice
) external payable {
address buyer = _msgSender();
(uint256 optionPrice, uint256 rawOptionPrice, , ) =
getOptionPrice(pool, period, amount, strike, swappath);
require(
optionPrice <= acceptablePrice,
"Facade Error: The option price is too high"
);
IERC20 paymentToken = IERC20(swappath[0]);
paymentToken.safeTransferFrom(buyer, address(this), optionPrice);
if (swappath.length > 1) {
if (
paymentToken.allowance(address(this), address(exchange)) <
optionPrice
) {
paymentToken.safeApprove(address(exchange), 0);
paymentToken.safeApprove(address(exchange), type(uint256).max);
}
exchange.swapTokensForExactTokens(
rawOptionPrice,
optionPrice,
swappath,
address(this),
block.timestamp
);
}
pool.sellOption(buyer, period, amount, strike);
}
| /**
* @notice Used for buying the option contract and converting
* the buyer's tokens (the total premium) into the token
* in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param acceptablePrice The highest acceptable price
**/ | NatSpecMultiLine | v0.8.6+commit.11564f7e | GNU LGPLv3 | ipfs://9908360c5f827822f17d695dd790dd5c9756c700e0edc1d7bc0c3a36500e2b17 | {
"func_code_index": [
3260,
4511
]
} | 4,313 |
HegicStaking | contracts/Facade/Facade.sol | 0x956bed5f95d3cfc16581c3892931c0d110376f9f | Solidity | Facade | contract Facade is Ownable {
using SafeERC20 for IERC20;
IWETH public immutable WETH;
IUniswapV2Router01 public immutable exchange;
IOptionsManager public immutable optionsManager;
address public _trustedForwarder;
constructor(
IWETH weth,
IUniswapV2Router01 router,
IOptionsManager manager,
address trustedForwarder
) {
WETH = weth;
exchange = router;
_trustedForwarder = trustedForwarder;
optionsManager = manager;
}
/**
* @notice Used for calculating the option price (the premium) and using
* the swap router (if needed) to convert the tokens with which the user
* pays the premium into the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param total The total premium
* @param baseTotal The part of the premium that
* is distributed among the liquidity providers
* @param settlementFee The part of the premium that
* is distributed among the HEGIC staking participants
**/
function getOptionPrice(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath
)
public
view
returns (
uint256 total,
uint256 baseTotal,
uint256 settlementFee,
uint256 premium
)
{
(uint256 _baseTotal, uint256 baseSettlementFee, uint256 basePremium) =
getBaseOptionCost(pool, period, amount, strike);
if (swappath.length > 1)
total = exchange.getAmountsIn(_baseTotal, swappath)[0];
else total = _baseTotal;
baseTotal = _baseTotal;
settlementFee = (total * baseSettlementFee) / baseTotal;
premium = (total * basePremium) / baseTotal;
}
/**
* @notice Used for calculating the option price (the premium)
* in the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
**/
function getBaseOptionCost(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike
)
public
view
returns (
uint256 total,
uint256 settlementFee,
uint256 premium
)
{
(settlementFee, premium) = pool.calculateTotalPremium(
period,
amount,
strike
);
total = premium + settlementFee;
}
/**
* @notice Used for approving the pools contracts addresses.
**/
function poolApprove(IHegicPool pool) external {
pool.token().safeApprove(address(pool), 0);
pool.token().safeApprove(address(pool), type(uint256).max);
}
/**
* @notice Used for buying the option contract and converting
* the buyer's tokens (the total premium) into the token
* in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param acceptablePrice The highest acceptable price
**/
function createOption(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath,
uint256 acceptablePrice
) external payable {
address buyer = _msgSender();
(uint256 optionPrice, uint256 rawOptionPrice, , ) =
getOptionPrice(pool, period, amount, strike, swappath);
require(
optionPrice <= acceptablePrice,
"Facade Error: The option price is too high"
);
IERC20 paymentToken = IERC20(swappath[0]);
paymentToken.safeTransferFrom(buyer, address(this), optionPrice);
if (swappath.length > 1) {
if (
paymentToken.allowance(address(this), address(exchange)) <
optionPrice
) {
paymentToken.safeApprove(address(exchange), 0);
paymentToken.safeApprove(address(exchange), type(uint256).max);
}
exchange.swapTokensForExactTokens(
rawOptionPrice,
optionPrice,
swappath,
address(this),
block.timestamp
);
}
pool.sellOption(buyer, period, amount, strike);
}
/**
* @notice Used for converting the liquidity provider's Ether (ETH)
* into Wrapped Ether (WETH) and providing the funds into the pool.
* @param hedged The liquidity tranche type: hedged or unhedged (classic)
**/
function provideEthToPool(
IHegicPool pool,
bool hedged,
uint256 minShare
) external payable returns (uint256) {
WETH.deposit{value: msg.value}();
if (WETH.allowance(address(this), address(pool)) < msg.value)
WETH.approve(address(pool), type(uint256).max);
return pool.provideFrom(msg.sender, msg.value, hedged, minShare);
}
/**
* @notice Unlocks the array of options.
* @param optionIDs The array of options
**/
function unlockAll(IHegicPool pool, uint256[] calldata optionIDs) external {
uint256 arrayLength = optionIDs.length;
for (uint256 i = 0; i < arrayLength; i++) {
pool.unlock(optionIDs[i]);
}
}
/**
* @notice Used for granting the GSN (Gas Station Network) contract
* the permission to pay the gas (transaction) fees for the users.
* @param forwarder GSN (Gas Station Network) contract address
**/
function isTrustedForwarder(address forwarder) public view returns (bool) {
return forwarder == _trustedForwarder;
}
function claimAllStakingProfits(
IHegicStaking[] calldata stakings,
address account
) external {
uint256 arrayLength = stakings.length;
for (uint256 i = 0; i < arrayLength; i++) {
IHegicStaking s = stakings[i];
if (s.profitOf(account) > 0) s.claimProfits(account);
}
}
function _msgSender() internal view override returns (address signer) {
signer = msg.sender;
if (msg.data.length >= 20 && isTrustedForwarder(signer)) {
assembly {
signer := shr(96, calldataload(sub(calldatasize(), 20)))
}
}
}
function exercise(uint256 optionId) external {
require(
optionsManager.isApprovedOrOwner(_msgSender(), optionId),
"Facade Error: _msgSender is not eligible to exercise the option"
);
IHegicPool(optionsManager.tokenPool(optionId)).exercise(optionId);
}
} | /**
* @author 0mllwntrmt3
* @title Hegic Protocol V8888 Facade Contract
* @notice The contract that calculates the options prices,
* conducts the process of buying options, converts the premiums
* into the token that the pool is denominated in and grants
* permissions to the contracts such as GSN (Gas Station Network).
**/ | NatSpecMultiLine | provideEthToPool | function provideEthToPool(
IHegicPool pool,
bool hedged,
uint256 minShare
) external payable returns (uint256) {
WETH.deposit{value: msg.value}();
if (WETH.allowance(address(this), address(pool)) < msg.value)
WETH.approve(address(pool), type(uint256).max);
return pool.provideFrom(msg.sender, msg.value, hedged, minShare);
}
| /**
* @notice Used for converting the liquidity provider's Ether (ETH)
* into Wrapped Ether (WETH) and providing the funds into the pool.
* @param hedged The liquidity tranche type: hedged or unhedged (classic)
**/ | NatSpecMultiLine | v0.8.6+commit.11564f7e | GNU LGPLv3 | ipfs://9908360c5f827822f17d695dd790dd5c9756c700e0edc1d7bc0c3a36500e2b17 | {
"func_code_index": [
4752,
5148
]
} | 4,314 |
HegicStaking | contracts/Facade/Facade.sol | 0x956bed5f95d3cfc16581c3892931c0d110376f9f | Solidity | Facade | contract Facade is Ownable {
using SafeERC20 for IERC20;
IWETH public immutable WETH;
IUniswapV2Router01 public immutable exchange;
IOptionsManager public immutable optionsManager;
address public _trustedForwarder;
constructor(
IWETH weth,
IUniswapV2Router01 router,
IOptionsManager manager,
address trustedForwarder
) {
WETH = weth;
exchange = router;
_trustedForwarder = trustedForwarder;
optionsManager = manager;
}
/**
* @notice Used for calculating the option price (the premium) and using
* the swap router (if needed) to convert the tokens with which the user
* pays the premium into the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param total The total premium
* @param baseTotal The part of the premium that
* is distributed among the liquidity providers
* @param settlementFee The part of the premium that
* is distributed among the HEGIC staking participants
**/
function getOptionPrice(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath
)
public
view
returns (
uint256 total,
uint256 baseTotal,
uint256 settlementFee,
uint256 premium
)
{
(uint256 _baseTotal, uint256 baseSettlementFee, uint256 basePremium) =
getBaseOptionCost(pool, period, amount, strike);
if (swappath.length > 1)
total = exchange.getAmountsIn(_baseTotal, swappath)[0];
else total = _baseTotal;
baseTotal = _baseTotal;
settlementFee = (total * baseSettlementFee) / baseTotal;
premium = (total * basePremium) / baseTotal;
}
/**
* @notice Used for calculating the option price (the premium)
* in the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
**/
function getBaseOptionCost(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike
)
public
view
returns (
uint256 total,
uint256 settlementFee,
uint256 premium
)
{
(settlementFee, premium) = pool.calculateTotalPremium(
period,
amount,
strike
);
total = premium + settlementFee;
}
/**
* @notice Used for approving the pools contracts addresses.
**/
function poolApprove(IHegicPool pool) external {
pool.token().safeApprove(address(pool), 0);
pool.token().safeApprove(address(pool), type(uint256).max);
}
/**
* @notice Used for buying the option contract and converting
* the buyer's tokens (the total premium) into the token
* in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param acceptablePrice The highest acceptable price
**/
function createOption(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath,
uint256 acceptablePrice
) external payable {
address buyer = _msgSender();
(uint256 optionPrice, uint256 rawOptionPrice, , ) =
getOptionPrice(pool, period, amount, strike, swappath);
require(
optionPrice <= acceptablePrice,
"Facade Error: The option price is too high"
);
IERC20 paymentToken = IERC20(swappath[0]);
paymentToken.safeTransferFrom(buyer, address(this), optionPrice);
if (swappath.length > 1) {
if (
paymentToken.allowance(address(this), address(exchange)) <
optionPrice
) {
paymentToken.safeApprove(address(exchange), 0);
paymentToken.safeApprove(address(exchange), type(uint256).max);
}
exchange.swapTokensForExactTokens(
rawOptionPrice,
optionPrice,
swappath,
address(this),
block.timestamp
);
}
pool.sellOption(buyer, period, amount, strike);
}
/**
* @notice Used for converting the liquidity provider's Ether (ETH)
* into Wrapped Ether (WETH) and providing the funds into the pool.
* @param hedged The liquidity tranche type: hedged or unhedged (classic)
**/
function provideEthToPool(
IHegicPool pool,
bool hedged,
uint256 minShare
) external payable returns (uint256) {
WETH.deposit{value: msg.value}();
if (WETH.allowance(address(this), address(pool)) < msg.value)
WETH.approve(address(pool), type(uint256).max);
return pool.provideFrom(msg.sender, msg.value, hedged, minShare);
}
/**
* @notice Unlocks the array of options.
* @param optionIDs The array of options
**/
function unlockAll(IHegicPool pool, uint256[] calldata optionIDs) external {
uint256 arrayLength = optionIDs.length;
for (uint256 i = 0; i < arrayLength; i++) {
pool.unlock(optionIDs[i]);
}
}
/**
* @notice Used for granting the GSN (Gas Station Network) contract
* the permission to pay the gas (transaction) fees for the users.
* @param forwarder GSN (Gas Station Network) contract address
**/
function isTrustedForwarder(address forwarder) public view returns (bool) {
return forwarder == _trustedForwarder;
}
function claimAllStakingProfits(
IHegicStaking[] calldata stakings,
address account
) external {
uint256 arrayLength = stakings.length;
for (uint256 i = 0; i < arrayLength; i++) {
IHegicStaking s = stakings[i];
if (s.profitOf(account) > 0) s.claimProfits(account);
}
}
function _msgSender() internal view override returns (address signer) {
signer = msg.sender;
if (msg.data.length >= 20 && isTrustedForwarder(signer)) {
assembly {
signer := shr(96, calldataload(sub(calldatasize(), 20)))
}
}
}
function exercise(uint256 optionId) external {
require(
optionsManager.isApprovedOrOwner(_msgSender(), optionId),
"Facade Error: _msgSender is not eligible to exercise the option"
);
IHegicPool(optionsManager.tokenPool(optionId)).exercise(optionId);
}
} | /**
* @author 0mllwntrmt3
* @title Hegic Protocol V8888 Facade Contract
* @notice The contract that calculates the options prices,
* conducts the process of buying options, converts the premiums
* into the token that the pool is denominated in and grants
* permissions to the contracts such as GSN (Gas Station Network).
**/ | NatSpecMultiLine | unlockAll | function unlockAll(IHegicPool pool, uint256[] calldata optionIDs) external {
uint256 arrayLength = optionIDs.length;
for (uint256 i = 0; i < arrayLength; i++) {
pool.unlock(optionIDs[i]);
}
}
| /**
* @notice Unlocks the array of options.
* @param optionIDs The array of options
**/ | NatSpecMultiLine | v0.8.6+commit.11564f7e | GNU LGPLv3 | ipfs://9908360c5f827822f17d695dd790dd5c9756c700e0edc1d7bc0c3a36500e2b17 | {
"func_code_index": [
5257,
5492
]
} | 4,315 |
HegicStaking | contracts/Facade/Facade.sol | 0x956bed5f95d3cfc16581c3892931c0d110376f9f | Solidity | Facade | contract Facade is Ownable {
using SafeERC20 for IERC20;
IWETH public immutable WETH;
IUniswapV2Router01 public immutable exchange;
IOptionsManager public immutable optionsManager;
address public _trustedForwarder;
constructor(
IWETH weth,
IUniswapV2Router01 router,
IOptionsManager manager,
address trustedForwarder
) {
WETH = weth;
exchange = router;
_trustedForwarder = trustedForwarder;
optionsManager = manager;
}
/**
* @notice Used for calculating the option price (the premium) and using
* the swap router (if needed) to convert the tokens with which the user
* pays the premium into the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param total The total premium
* @param baseTotal The part of the premium that
* is distributed among the liquidity providers
* @param settlementFee The part of the premium that
* is distributed among the HEGIC staking participants
**/
function getOptionPrice(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath
)
public
view
returns (
uint256 total,
uint256 baseTotal,
uint256 settlementFee,
uint256 premium
)
{
(uint256 _baseTotal, uint256 baseSettlementFee, uint256 basePremium) =
getBaseOptionCost(pool, period, amount, strike);
if (swappath.length > 1)
total = exchange.getAmountsIn(_baseTotal, swappath)[0];
else total = _baseTotal;
baseTotal = _baseTotal;
settlementFee = (total * baseSettlementFee) / baseTotal;
premium = (total * basePremium) / baseTotal;
}
/**
* @notice Used for calculating the option price (the premium)
* in the token in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
**/
function getBaseOptionCost(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike
)
public
view
returns (
uint256 total,
uint256 settlementFee,
uint256 premium
)
{
(settlementFee, premium) = pool.calculateTotalPremium(
period,
amount,
strike
);
total = premium + settlementFee;
}
/**
* @notice Used for approving the pools contracts addresses.
**/
function poolApprove(IHegicPool pool) external {
pool.token().safeApprove(address(pool), 0);
pool.token().safeApprove(address(pool), type(uint256).max);
}
/**
* @notice Used for buying the option contract and converting
* the buyer's tokens (the total premium) into the token
* in which the pool is denominated.
* @param period The option period
* @param amount The option size
* @param strike The option strike
* @param acceptablePrice The highest acceptable price
**/
function createOption(
IHegicPool pool,
uint256 period,
uint256 amount,
uint256 strike,
address[] calldata swappath,
uint256 acceptablePrice
) external payable {
address buyer = _msgSender();
(uint256 optionPrice, uint256 rawOptionPrice, , ) =
getOptionPrice(pool, period, amount, strike, swappath);
require(
optionPrice <= acceptablePrice,
"Facade Error: The option price is too high"
);
IERC20 paymentToken = IERC20(swappath[0]);
paymentToken.safeTransferFrom(buyer, address(this), optionPrice);
if (swappath.length > 1) {
if (
paymentToken.allowance(address(this), address(exchange)) <
optionPrice
) {
paymentToken.safeApprove(address(exchange), 0);
paymentToken.safeApprove(address(exchange), type(uint256).max);
}
exchange.swapTokensForExactTokens(
rawOptionPrice,
optionPrice,
swappath,
address(this),
block.timestamp
);
}
pool.sellOption(buyer, period, amount, strike);
}
/**
* @notice Used for converting the liquidity provider's Ether (ETH)
* into Wrapped Ether (WETH) and providing the funds into the pool.
* @param hedged The liquidity tranche type: hedged or unhedged (classic)
**/
function provideEthToPool(
IHegicPool pool,
bool hedged,
uint256 minShare
) external payable returns (uint256) {
WETH.deposit{value: msg.value}();
if (WETH.allowance(address(this), address(pool)) < msg.value)
WETH.approve(address(pool), type(uint256).max);
return pool.provideFrom(msg.sender, msg.value, hedged, minShare);
}
/**
* @notice Unlocks the array of options.
* @param optionIDs The array of options
**/
function unlockAll(IHegicPool pool, uint256[] calldata optionIDs) external {
uint256 arrayLength = optionIDs.length;
for (uint256 i = 0; i < arrayLength; i++) {
pool.unlock(optionIDs[i]);
}
}
/**
* @notice Used for granting the GSN (Gas Station Network) contract
* the permission to pay the gas (transaction) fees for the users.
* @param forwarder GSN (Gas Station Network) contract address
**/
function isTrustedForwarder(address forwarder) public view returns (bool) {
return forwarder == _trustedForwarder;
}
function claimAllStakingProfits(
IHegicStaking[] calldata stakings,
address account
) external {
uint256 arrayLength = stakings.length;
for (uint256 i = 0; i < arrayLength; i++) {
IHegicStaking s = stakings[i];
if (s.profitOf(account) > 0) s.claimProfits(account);
}
}
function _msgSender() internal view override returns (address signer) {
signer = msg.sender;
if (msg.data.length >= 20 && isTrustedForwarder(signer)) {
assembly {
signer := shr(96, calldataload(sub(calldatasize(), 20)))
}
}
}
function exercise(uint256 optionId) external {
require(
optionsManager.isApprovedOrOwner(_msgSender(), optionId),
"Facade Error: _msgSender is not eligible to exercise the option"
);
IHegicPool(optionsManager.tokenPool(optionId)).exercise(optionId);
}
} | /**
* @author 0mllwntrmt3
* @title Hegic Protocol V8888 Facade Contract
* @notice The contract that calculates the options prices,
* conducts the process of buying options, converts the premiums
* into the token that the pool is denominated in and grants
* permissions to the contracts such as GSN (Gas Station Network).
**/ | NatSpecMultiLine | isTrustedForwarder | function isTrustedForwarder(address forwarder) public view returns (bool) {
return forwarder == _trustedForwarder;
}
| /**
* @notice Used for granting the GSN (Gas Station Network) contract
* the permission to pay the gas (transaction) fees for the users.
* @param forwarder GSN (Gas Station Network) contract address
**/ | NatSpecMultiLine | v0.8.6+commit.11564f7e | GNU LGPLv3 | ipfs://9908360c5f827822f17d695dd790dd5c9756c700e0edc1d7bc0c3a36500e2b17 | {
"func_code_index": [
5721,
5853
]
} | 4,316 |
Owned | Owned.sol | 0x2bcd09aedac5833981bda64c0c4425cd2d72e79d | Solidity | SafeDogeInu | contract SafeDogeInu is ERC20Interface, Owned, SafeMath {
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
symbol = "SAFEDOGE";
name = "SafeDoge Inu";
decimals = 10;
_totalSupply = 10000000000000000000000000;
balances[0x805E409133952ee3aD58ED98a02A90a78159D60c] = _totalSupply;
emit Transfer(address(0), 0x805E409133952ee3aD58ED98a02A90a78159D60c, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | // ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ---------------------------------------------------------------------------- | LineComment | totalSupply | function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
| // ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------ | LineComment | v0.5.0+commit.1d4f565a | MIT | bzzr://3d9f370edd6fec0c5b7155e782f4c350d112d1669a8bc53d9b5beda3f68dc7fa | {
"func_code_index": [
990,
1106
]
} | 4,317 |
Owned | Owned.sol | 0x2bcd09aedac5833981bda64c0c4425cd2d72e79d | Solidity | SafeDogeInu | contract SafeDogeInu is ERC20Interface, Owned, SafeMath {
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
symbol = "SAFEDOGE";
name = "SafeDoge Inu";
decimals = 10;
_totalSupply = 10000000000000000000000000;
balances[0x805E409133952ee3aD58ED98a02A90a78159D60c] = _totalSupply;
emit Transfer(address(0), 0x805E409133952ee3aD58ED98a02A90a78159D60c, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | // ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ---------------------------------------------------------------------------- | LineComment | balanceOf | function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
| // ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------ | LineComment | v0.5.0+commit.1d4f565a | MIT | bzzr://3d9f370edd6fec0c5b7155e782f4c350d112d1669a8bc53d9b5beda3f68dc7fa | {
"func_code_index": [
1326,
1451
]
} | 4,318 |
Owned | Owned.sol | 0x2bcd09aedac5833981bda64c0c4425cd2d72e79d | Solidity | SafeDogeInu | contract SafeDogeInu is ERC20Interface, Owned, SafeMath {
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
symbol = "SAFEDOGE";
name = "SafeDoge Inu";
decimals = 10;
_totalSupply = 10000000000000000000000000;
balances[0x805E409133952ee3aD58ED98a02A90a78159D60c] = _totalSupply;
emit Transfer(address(0), 0x805E409133952ee3aD58ED98a02A90a78159D60c, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | // ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ---------------------------------------------------------------------------- | LineComment | transfer | function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
| // ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------ | LineComment | v0.5.0+commit.1d4f565a | MIT | bzzr://3d9f370edd6fec0c5b7155e782f4c350d112d1669a8bc53d9b5beda3f68dc7fa | {
"func_code_index": [
1795,
2077
]
} | 4,319 |
Owned | Owned.sol | 0x2bcd09aedac5833981bda64c0c4425cd2d72e79d | Solidity | SafeDogeInu | contract SafeDogeInu is ERC20Interface, Owned, SafeMath {
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
symbol = "SAFEDOGE";
name = "SafeDoge Inu";
decimals = 10;
_totalSupply = 10000000000000000000000000;
balances[0x805E409133952ee3aD58ED98a02A90a78159D60c] = _totalSupply;
emit Transfer(address(0), 0x805E409133952ee3aD58ED98a02A90a78159D60c, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | // ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ---------------------------------------------------------------------------- | LineComment | approve | function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
| // ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------ | LineComment | v0.5.0+commit.1d4f565a | MIT | bzzr://3d9f370edd6fec0c5b7155e782f4c350d112d1669a8bc53d9b5beda3f68dc7fa | {
"func_code_index": [
2585,
2798
]
} | 4,320 |
Owned | Owned.sol | 0x2bcd09aedac5833981bda64c0c4425cd2d72e79d | Solidity | SafeDogeInu | contract SafeDogeInu is ERC20Interface, Owned, SafeMath {
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
symbol = "SAFEDOGE";
name = "SafeDoge Inu";
decimals = 10;
_totalSupply = 10000000000000000000000000;
balances[0x805E409133952ee3aD58ED98a02A90a78159D60c] = _totalSupply;
emit Transfer(address(0), 0x805E409133952ee3aD58ED98a02A90a78159D60c, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | // ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ---------------------------------------------------------------------------- | LineComment | transferFrom | function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
| // ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------ | LineComment | v0.5.0+commit.1d4f565a | MIT | bzzr://3d9f370edd6fec0c5b7155e782f4c350d112d1669a8bc53d9b5beda3f68dc7fa | {
"func_code_index": [
3329,
3692
]
} | 4,321 |
Owned | Owned.sol | 0x2bcd09aedac5833981bda64c0c4425cd2d72e79d | Solidity | SafeDogeInu | contract SafeDogeInu is ERC20Interface, Owned, SafeMath {
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
symbol = "SAFEDOGE";
name = "SafeDoge Inu";
decimals = 10;
_totalSupply = 10000000000000000000000000;
balances[0x805E409133952ee3aD58ED98a02A90a78159D60c] = _totalSupply;
emit Transfer(address(0), 0x805E409133952ee3aD58ED98a02A90a78159D60c, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | // ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ---------------------------------------------------------------------------- | LineComment | allowance | function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
| // ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------ | LineComment | v0.5.0+commit.1d4f565a | MIT | bzzr://3d9f370edd6fec0c5b7155e782f4c350d112d1669a8bc53d9b5beda3f68dc7fa | {
"func_code_index": [
3975,
4127
]
} | 4,322 |
Owned | Owned.sol | 0x2bcd09aedac5833981bda64c0c4425cd2d72e79d | Solidity | SafeDogeInu | contract SafeDogeInu is ERC20Interface, Owned, SafeMath {
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
symbol = "SAFEDOGE";
name = "SafeDoge Inu";
decimals = 10;
_totalSupply = 10000000000000000000000000;
balances[0x805E409133952ee3aD58ED98a02A90a78159D60c] = _totalSupply;
emit Transfer(address(0), 0x805E409133952ee3aD58ED98a02A90a78159D60c, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | // ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ---------------------------------------------------------------------------- | LineComment | approveAndCall | function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
| // ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------ | LineComment | v0.5.0+commit.1d4f565a | MIT | bzzr://3d9f370edd6fec0c5b7155e782f4c350d112d1669a8bc53d9b5beda3f68dc7fa | {
"func_code_index": [
4482,
4820
]
} | 4,323 |
Owned | Owned.sol | 0x2bcd09aedac5833981bda64c0c4425cd2d72e79d | Solidity | SafeDogeInu | contract SafeDogeInu is ERC20Interface, Owned, SafeMath {
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
symbol = "SAFEDOGE";
name = "SafeDoge Inu";
decimals = 10;
_totalSupply = 10000000000000000000000000;
balances[0x805E409133952ee3aD58ED98a02A90a78159D60c] = _totalSupply;
emit Transfer(address(0), 0x805E409133952ee3aD58ED98a02A90a78159D60c, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | // ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ---------------------------------------------------------------------------- | LineComment | function () external payable {
revert();
}
| // ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------ | LineComment | v0.5.0+commit.1d4f565a | MIT | bzzr://3d9f370edd6fec0c5b7155e782f4c350d112d1669a8bc53d9b5beda3f68dc7fa | {
"func_code_index": [
5012,
5073
]
} | 4,324 |
|
Owned | Owned.sol | 0x2bcd09aedac5833981bda64c0c4425cd2d72e79d | Solidity | SafeDogeInu | contract SafeDogeInu is ERC20Interface, Owned, SafeMath {
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
symbol = "SAFEDOGE";
name = "SafeDoge Inu";
decimals = 10;
_totalSupply = 10000000000000000000000000;
balances[0x805E409133952ee3aD58ED98a02A90a78159D60c] = _totalSupply;
emit Transfer(address(0), 0x805E409133952ee3aD58ED98a02A90a78159D60c, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public view returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account tokenOwner
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public view returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to to account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer tokens from the from account to the to account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the from account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for spender to transferFrom(...) tokens
// from the token owner's account. The spender contract function
// receiveApproval(...) is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () external payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | // ----------------------------------------------------------------------------
// ERC20 Token, with the addition of symbol, name and decimals and assisted
// token transfers
// ---------------------------------------------------------------------------- | LineComment | transferAnyERC20Token | function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
| // ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------ | LineComment | v0.5.0+commit.1d4f565a | MIT | bzzr://3d9f370edd6fec0c5b7155e782f4c350d112d1669a8bc53d9b5beda3f68dc7fa | {
"func_code_index": [
5306,
5495
]
} | 4,325 |
hbeastTuesday | hbeastTuesday.sol | 0x0376411338c0dab5dd5e78b3d717284fa2774eb4 | Solidity | Context | contract Context {
constructor() internal {}
// solhint-disable-previous-line no-empty-blocks
function _msgSender() internal view returns(address payable) {
return msg.sender;
}
} | _msgSender | function _msgSender() internal view returns(address payable) {
return msg.sender;
}
| // solhint-disable-previous-line no-empty-blocks | LineComment | v0.5.17+commit.d19bba13 | Unlicense | bzzr://a5c8f4b92500c7e8f3991ba0746f1dff88a59e2b5d16cb3519d0e21ce3a9be86 | {
"func_code_index": [
105,
207
]
} | 4,326 |
||
Mjolnir | Mjolnir.sol | 0x528ff496ce17650b3b26b1a725671a89a7aa4d0b | Solidity | Token | contract Token {
/* This is the Main Contract For Mjolnir */
/// @return total amount of tokens
function totalSupply() constant returns (uint256 supply) {}
/// @param _owner The address from which the balance will be retrieved
/// @return The balance
function balanceOf(address _owner) constant returns (uint256 balance) {}
/// @notice send `_value` token to `_to` from `msg.sender`
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transfer(address _to, uint256 _value) returns (bool success) {}
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
/// @param _from The address of the sender
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
/// @notice `msg.sender` approves `_addr` to spend `_value` tokens
/// @param _spender The address of the account able to transfer the tokens
/// @param _value The amount of wei to be approved for transfer
/// @return Whether the approval was successful or not
function approve(address _spender, uint256 _value) returns (bool success) {}
/// @param _owner The address of the account owning tokens
/// @param _spender The address of the account able to transfer the tokens
/// @return Amount of remaining tokens allowed to spent
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
} | totalSupply | function totalSupply() constant returns (uint256 supply) {}
| /// @return total amount of tokens | NatSpecSingleLine | v0.4.23+commit.124ca40d | bzzr://5bad320b41c1d1946027425aafda0b505cb59ea6ccad6b0d95311aaf40837239 | {
"func_code_index": [
115,
179
]
} | 4,327 |
|||
Mjolnir | Mjolnir.sol | 0x528ff496ce17650b3b26b1a725671a89a7aa4d0b | Solidity | Token | contract Token {
/* This is the Main Contract For Mjolnir */
/// @return total amount of tokens
function totalSupply() constant returns (uint256 supply) {}
/// @param _owner The address from which the balance will be retrieved
/// @return The balance
function balanceOf(address _owner) constant returns (uint256 balance) {}
/// @notice send `_value` token to `_to` from `msg.sender`
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transfer(address _to, uint256 _value) returns (bool success) {}
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
/// @param _from The address of the sender
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
/// @notice `msg.sender` approves `_addr` to spend `_value` tokens
/// @param _spender The address of the account able to transfer the tokens
/// @param _value The amount of wei to be approved for transfer
/// @return Whether the approval was successful or not
function approve(address _spender, uint256 _value) returns (bool success) {}
/// @param _owner The address of the account owning tokens
/// @param _spender The address of the account able to transfer the tokens
/// @return Amount of remaining tokens allowed to spent
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
} | balanceOf | function balanceOf(address _owner) constant returns (uint256 balance) {}
| /// @param _owner The address from which the balance will be retrieved
/// @return The balance | NatSpecSingleLine | v0.4.23+commit.124ca40d | bzzr://5bad320b41c1d1946027425aafda0b505cb59ea6ccad6b0d95311aaf40837239 | {
"func_code_index": [
287,
364
]
} | 4,328 |
|||
Mjolnir | Mjolnir.sol | 0x528ff496ce17650b3b26b1a725671a89a7aa4d0b | Solidity | Token | contract Token {
/* This is the Main Contract For Mjolnir */
/// @return total amount of tokens
function totalSupply() constant returns (uint256 supply) {}
/// @param _owner The address from which the balance will be retrieved
/// @return The balance
function balanceOf(address _owner) constant returns (uint256 balance) {}
/// @notice send `_value` token to `_to` from `msg.sender`
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transfer(address _to, uint256 _value) returns (bool success) {}
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
/// @param _from The address of the sender
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
/// @notice `msg.sender` approves `_addr` to spend `_value` tokens
/// @param _spender The address of the account able to transfer the tokens
/// @param _value The amount of wei to be approved for transfer
/// @return Whether the approval was successful or not
function approve(address _spender, uint256 _value) returns (bool success) {}
/// @param _owner The address of the account owning tokens
/// @param _spender The address of the account able to transfer the tokens
/// @return Amount of remaining tokens allowed to spent
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
} | transfer | function transfer(address _to, uint256 _value) returns (bool success) {}
| /// @notice send `_value` token to `_to` from `msg.sender`
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not | NatSpecSingleLine | v0.4.23+commit.124ca40d | bzzr://5bad320b41c1d1946027425aafda0b505cb59ea6ccad6b0d95311aaf40837239 | {
"func_code_index": [
601,
678
]
} | 4,329 |
|||
Mjolnir | Mjolnir.sol | 0x528ff496ce17650b3b26b1a725671a89a7aa4d0b | Solidity | Token | contract Token {
/* This is the Main Contract For Mjolnir */
/// @return total amount of tokens
function totalSupply() constant returns (uint256 supply) {}
/// @param _owner The address from which the balance will be retrieved
/// @return The balance
function balanceOf(address _owner) constant returns (uint256 balance) {}
/// @notice send `_value` token to `_to` from `msg.sender`
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transfer(address _to, uint256 _value) returns (bool success) {}
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
/// @param _from The address of the sender
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
/// @notice `msg.sender` approves `_addr` to spend `_value` tokens
/// @param _spender The address of the account able to transfer the tokens
/// @param _value The amount of wei to be approved for transfer
/// @return Whether the approval was successful or not
function approve(address _spender, uint256 _value) returns (bool success) {}
/// @param _owner The address of the account owning tokens
/// @param _spender The address of the account able to transfer the tokens
/// @return Amount of remaining tokens allowed to spent
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
} | transferFrom | function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
| /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
/// @param _from The address of the sender
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not | NatSpecSingleLine | v0.4.23+commit.124ca40d | bzzr://5bad320b41c1d1946027425aafda0b505cb59ea6ccad6b0d95311aaf40837239 | {
"func_code_index": [
1001,
1097
]
} | 4,330 |
|||
Mjolnir | Mjolnir.sol | 0x528ff496ce17650b3b26b1a725671a89a7aa4d0b | Solidity | Token | contract Token {
/* This is the Main Contract For Mjolnir */
/// @return total amount of tokens
function totalSupply() constant returns (uint256 supply) {}
/// @param _owner The address from which the balance will be retrieved
/// @return The balance
function balanceOf(address _owner) constant returns (uint256 balance) {}
/// @notice send `_value` token to `_to` from `msg.sender`
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transfer(address _to, uint256 _value) returns (bool success) {}
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
/// @param _from The address of the sender
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
/// @notice `msg.sender` approves `_addr` to spend `_value` tokens
/// @param _spender The address of the account able to transfer the tokens
/// @param _value The amount of wei to be approved for transfer
/// @return Whether the approval was successful or not
function approve(address _spender, uint256 _value) returns (bool success) {}
/// @param _owner The address of the account owning tokens
/// @param _spender The address of the account able to transfer the tokens
/// @return Amount of remaining tokens allowed to spent
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
} | approve | function approve(address _spender, uint256 _value) returns (bool success) {}
| /// @notice `msg.sender` approves `_addr` to spend `_value` tokens
/// @param _spender The address of the account able to transfer the tokens
/// @param _value The amount of wei to be approved for transfer
/// @return Whether the approval was successful or not | NatSpecSingleLine | v0.4.23+commit.124ca40d | bzzr://5bad320b41c1d1946027425aafda0b505cb59ea6ccad6b0d95311aaf40837239 | {
"func_code_index": [
1381,
1462
]
} | 4,331 |
|||
Mjolnir | Mjolnir.sol | 0x528ff496ce17650b3b26b1a725671a89a7aa4d0b | Solidity | Token | contract Token {
/* This is the Main Contract For Mjolnir */
/// @return total amount of tokens
function totalSupply() constant returns (uint256 supply) {}
/// @param _owner The address from which the balance will be retrieved
/// @return The balance
function balanceOf(address _owner) constant returns (uint256 balance) {}
/// @notice send `_value` token to `_to` from `msg.sender`
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transfer(address _to, uint256 _value) returns (bool success) {}
/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
/// @param _from The address of the sender
/// @param _to The address of the recipient
/// @param _value The amount of token to be transferred
/// @return Whether the transfer was successful or not
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
/// @notice `msg.sender` approves `_addr` to spend `_value` tokens
/// @param _spender The address of the account able to transfer the tokens
/// @param _value The amount of wei to be approved for transfer
/// @return Whether the approval was successful or not
function approve(address _spender, uint256 _value) returns (bool success) {}
/// @param _owner The address of the account owning tokens
/// @param _spender The address of the account able to transfer the tokens
/// @return Amount of remaining tokens allowed to spent
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
} | allowance | function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
| /// @param _owner The address of the account owning tokens
/// @param _spender The address of the account able to transfer the tokens
/// @return Amount of remaining tokens allowed to spent | NatSpecSingleLine | v0.4.23+commit.124ca40d | bzzr://5bad320b41c1d1946027425aafda0b505cb59ea6ccad6b0d95311aaf40837239 | {
"func_code_index": [
1670,
1767
]
} | 4,332 |
|||
Mjolnir | Mjolnir.sol | 0x528ff496ce17650b3b26b1a725671a89a7aa4d0b | Solidity | Mjolnir | contract Mjolnir is StandardToken {
/* Public variables of the token */
/*
NOTE:
The following variables are OPTIONAL vanities. One does not have to include them.
They allow one to customise the token contract & in no way influences the core functionality.
Some wallets/interfaces might not even bother to look at this information.
*/
string public name; // Token Name
uint8 public decimals; // How many decimals to show. To be standard complicant keep it 18
string public symbol; // An identifier: eg SBX, XPR etc..
string public version = 'H1.0';
uint256 public unitsOneEthCanBuy; // How many units of your coin can be bought by 1 ETH?
uint256 public totalEthInWei; // WEI is the smallest unit of ETH (the equivalent of cent in USD or satoshi in BTC). We'll store the total ETH raised via our ICO here.
address public fundsWallet; // Where should the raised ETH go?
// This is a constructor function
// which means the following function name has to match the contract name declared above
function Mjolnir() {
balances[msg.sender] = 8261700000000; // Give the creator all initial tokens. This is set to 1000 for example. If you want your initial tokens to be X and your decimal is 5, set this value to X * 100000.
totalSupply = 8261700000000; // Update total supply (1000 for example)
name = "Mjolnir"; // Set the name for display purposes
decimals = 8; // Amount of decimals for display purposes
symbol = "MJR"; // Set the symbol for display purposes
unitsOneEthCanBuy = 2500; // Set the price of your token for the ICO
fundsWallet = msg.sender; // The owner of the contract gets ETH
}
function() payable{
totalEthInWei = totalEthInWei + msg.value;
uint256 amount = msg.value * unitsOneEthCanBuy;
require(balances[fundsWallet] >= amount);
balances[fundsWallet] = balances[fundsWallet] - amount;
balances[msg.sender] = balances[msg.sender] + amount;
Transfer(fundsWallet, msg.sender, amount); // Broadcast a message to the blockchain
//Transfer ether to fundsWallet
fundsWallet.transfer(msg.value);
}
/* Approves and then calls the receiving contract */
function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
//call the receiveApproval function on the contract you want to be notified. This crafts the function signature manually so one doesn't have to include a contract in here just for this.
//receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
//it is assumed that when does this that the call *should* succeed, otherwise one would use vanilla approve instead.
if(!_spender.call(bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { throw; }
return true;
}
} | Mjolnir | function Mjolnir() {
balances[msg.sender] = 8261700000000; // Give the creator all initial tokens. This is set to 1000 for example. If you want your initial tokens to be X and your decimal is 5, set this value to X * 100000.
totalSupply = 8261700000000; // Update total supply (1000 for example)
name = "Mjolnir"; // Set the name for display purposes
decimals = 8; // Amount of decimals for display purposes
symbol = "MJR"; // Set the symbol for display purposes
unitsOneEthCanBuy = 2500; // Set the price of your token for the ICO
fundsWallet = msg.sender; // The owner of the contract gets ETH
}
| // Where should the raised ETH go?
// This is a constructor function
// which means the following function name has to match the contract name declared above | LineComment | v0.4.23+commit.124ca40d | bzzr://5bad320b41c1d1946027425aafda0b505cb59ea6ccad6b0d95311aaf40837239 | {
"func_code_index": [
1153,
2057
]
} | 4,333 |
|||
Mjolnir | Mjolnir.sol | 0x528ff496ce17650b3b26b1a725671a89a7aa4d0b | Solidity | Mjolnir | contract Mjolnir is StandardToken {
/* Public variables of the token */
/*
NOTE:
The following variables are OPTIONAL vanities. One does not have to include them.
They allow one to customise the token contract & in no way influences the core functionality.
Some wallets/interfaces might not even bother to look at this information.
*/
string public name; // Token Name
uint8 public decimals; // How many decimals to show. To be standard complicant keep it 18
string public symbol; // An identifier: eg SBX, XPR etc..
string public version = 'H1.0';
uint256 public unitsOneEthCanBuy; // How many units of your coin can be bought by 1 ETH?
uint256 public totalEthInWei; // WEI is the smallest unit of ETH (the equivalent of cent in USD or satoshi in BTC). We'll store the total ETH raised via our ICO here.
address public fundsWallet; // Where should the raised ETH go?
// This is a constructor function
// which means the following function name has to match the contract name declared above
function Mjolnir() {
balances[msg.sender] = 8261700000000; // Give the creator all initial tokens. This is set to 1000 for example. If you want your initial tokens to be X and your decimal is 5, set this value to X * 100000.
totalSupply = 8261700000000; // Update total supply (1000 for example)
name = "Mjolnir"; // Set the name for display purposes
decimals = 8; // Amount of decimals for display purposes
symbol = "MJR"; // Set the symbol for display purposes
unitsOneEthCanBuy = 2500; // Set the price of your token for the ICO
fundsWallet = msg.sender; // The owner of the contract gets ETH
}
function() payable{
totalEthInWei = totalEthInWei + msg.value;
uint256 amount = msg.value * unitsOneEthCanBuy;
require(balances[fundsWallet] >= amount);
balances[fundsWallet] = balances[fundsWallet] - amount;
balances[msg.sender] = balances[msg.sender] + amount;
Transfer(fundsWallet, msg.sender, amount); // Broadcast a message to the blockchain
//Transfer ether to fundsWallet
fundsWallet.transfer(msg.value);
}
/* Approves and then calls the receiving contract */
function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
//call the receiveApproval function on the contract you want to be notified. This crafts the function signature manually so one doesn't have to include a contract in here just for this.
//receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
//it is assumed that when does this that the call *should* succeed, otherwise one would use vanilla approve instead.
if(!_spender.call(bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { throw; }
return true;
}
} | approveAndCall | function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
//call the receiveApproval function on the contract you want to be notified. This crafts the function signature manually so one doesn't have to include a contract in here just for this.
//receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
//it is assumed that when does this that the call *should* succeed, otherwise one would use vanilla approve instead.
if(!_spender.call(bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { throw; }
return true;
}
| /* Approves and then calls the receiving contract */ | Comment | v0.4.23+commit.124ca40d | bzzr://5bad320b41c1d1946027425aafda0b505cb59ea6ccad6b0d95311aaf40837239 | {
"func_code_index": [
2653,
3458
]
} | 4,334 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | TokenERC20 | contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function TokenERC20(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` in behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/
function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
/**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
} | TokenERC20 | function TokenERC20(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
| /**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/ | NatSpecMultiLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
840,
1385
]
} | 4,335 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | TokenERC20 | contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function TokenERC20(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` in behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/
function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
/**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
} | _transfer | function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
| /**
* Internal transfer, only can be called by this contract
*/ | NatSpecMultiLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
1469,
2311
]
} | 4,336 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | TokenERC20 | contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function TokenERC20(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` in behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/
function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
/**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
} | transfer | function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
| /**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/ | NatSpecMultiLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
2517,
2629
]
} | 4,337 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | TokenERC20 | contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function TokenERC20(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` in behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/
function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
/**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
} | transferFrom | function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
| /**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` in behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/ | NatSpecMultiLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
2904,
3205
]
} | 4,338 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | TokenERC20 | contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function TokenERC20(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` in behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/
function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
/**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
} | approve | function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
| /**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/ | NatSpecMultiLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
3469,
3645
]
} | 4,339 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | TokenERC20 | contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function TokenERC20(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` in behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/
function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
/**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
} | approveAndCall | function approveAndCall(address _spender, uint256 _value, bytes _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
| /**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/ | NatSpecMultiLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
4039,
4391
]
} | 4,340 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | TokenERC20 | contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function TokenERC20(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` in behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/
function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
/**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
} | burn | function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
| /**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/ | NatSpecMultiLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
4561,
4935
]
} | 4,341 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | TokenERC20 | contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function TokenERC20(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) public {
totalSupply = initialSupply * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` in behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/
function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/
function approveAndCall(address _spender, uint256 _value, bytes _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
/**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
} | burnFrom | function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
| /**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/ | NatSpecMultiLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
5193,
5804
]
} | 4,342 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | Coinquer | contract Coinquer is owned, TokenERC20 {
uint256 public sellPrice;
uint256 public buyPrice;
mapping (address => bool) public frozenAccount;
/* This generates a public event on the blockchain that will notify clients */
event FrozenFunds(address target, bool frozen);
/* Initializes contract with initial supply tokens to the creator of the contract */
function Coinquer(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/* Internal transfer, only can be called by this contract */
function _transfer(address _from, address _to, uint _value) internal {
require (_to != 0x0); // Prevent transfer to 0x0 address. Use burn() instead
require (balanceOf[_from] > _value); // Check if the sender has enough
require (balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows
require(!frozenAccount[_from]); // Check if sender is frozen
require(!frozenAccount[_to]); // Check if recipient is frozen
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
Transfer(_from, _to, _value);
}
/// @notice Create `mintedAmount` tokens and send it to `target`
/// @param target Address to receive the tokens
/// @param mintedAmount the amount of tokens it will receive
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens
/// @param target Address to be frozen
/// @param freeze either to freeze it or not
function freezeAccount(address target, bool freeze) onlyOwner public {
frozenAccount[target] = freeze;
FrozenFunds(target, freeze);
}
} | Coinquer | function Coinquer(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
| /* Initializes contract with initial supply tokens to the creator of the contract */ | Comment | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
391,
568
]
} | 4,343 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | Coinquer | contract Coinquer is owned, TokenERC20 {
uint256 public sellPrice;
uint256 public buyPrice;
mapping (address => bool) public frozenAccount;
/* This generates a public event on the blockchain that will notify clients */
event FrozenFunds(address target, bool frozen);
/* Initializes contract with initial supply tokens to the creator of the contract */
function Coinquer(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/* Internal transfer, only can be called by this contract */
function _transfer(address _from, address _to, uint _value) internal {
require (_to != 0x0); // Prevent transfer to 0x0 address. Use burn() instead
require (balanceOf[_from] > _value); // Check if the sender has enough
require (balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows
require(!frozenAccount[_from]); // Check if sender is frozen
require(!frozenAccount[_to]); // Check if recipient is frozen
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
Transfer(_from, _to, _value);
}
/// @notice Create `mintedAmount` tokens and send it to `target`
/// @param target Address to receive the tokens
/// @param mintedAmount the amount of tokens it will receive
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens
/// @param target Address to be frozen
/// @param freeze either to freeze it or not
function freezeAccount(address target, bool freeze) onlyOwner public {
frozenAccount[target] = freeze;
FrozenFunds(target, freeze);
}
} | _transfer | function _transfer(address _from, address _to, uint _value) internal {
require (_to != 0x0); // Prevent transfer to 0x0 address. Use burn() instead
require (balanceOf[_from] > _value); // Check if the sender has enough
require (balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows
require(!frozenAccount[_from]); // Check if sender is frozen
require(!frozenAccount[_to]); // Check if recipient is frozen
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
Transfer(_from, _to, _value);
}
| /* Internal transfer, only can be called by this contract */ | Comment | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
637,
1419
]
} | 4,344 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | Coinquer | contract Coinquer is owned, TokenERC20 {
uint256 public sellPrice;
uint256 public buyPrice;
mapping (address => bool) public frozenAccount;
/* This generates a public event on the blockchain that will notify clients */
event FrozenFunds(address target, bool frozen);
/* Initializes contract with initial supply tokens to the creator of the contract */
function Coinquer(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/* Internal transfer, only can be called by this contract */
function _transfer(address _from, address _to, uint _value) internal {
require (_to != 0x0); // Prevent transfer to 0x0 address. Use burn() instead
require (balanceOf[_from] > _value); // Check if the sender has enough
require (balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows
require(!frozenAccount[_from]); // Check if sender is frozen
require(!frozenAccount[_to]); // Check if recipient is frozen
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
Transfer(_from, _to, _value);
}
/// @notice Create `mintedAmount` tokens and send it to `target`
/// @param target Address to receive the tokens
/// @param mintedAmount the amount of tokens it will receive
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens
/// @param target Address to be frozen
/// @param freeze either to freeze it or not
function freezeAccount(address target, bool freeze) onlyOwner public {
frozenAccount[target] = freeze;
FrozenFunds(target, freeze);
}
} | mintToken | function mintToken(address target, uint256 mintedAmount) onlyOwner public {
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
| /// @notice Create `mintedAmount` tokens and send it to `target`
/// @param target Address to receive the tokens
/// @param mintedAmount the amount of tokens it will receive | NatSpecSingleLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
1611,
1869
]
} | 4,345 |
|||
Coinquer | Coinquer.sol | 0x1660ef71da631bf8b8bf5656f49bc635c97dfc1c | Solidity | Coinquer | contract Coinquer is owned, TokenERC20 {
uint256 public sellPrice;
uint256 public buyPrice;
mapping (address => bool) public frozenAccount;
/* This generates a public event on the blockchain that will notify clients */
event FrozenFunds(address target, bool frozen);
/* Initializes contract with initial supply tokens to the creator of the contract */
function Coinquer(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/* Internal transfer, only can be called by this contract */
function _transfer(address _from, address _to, uint _value) internal {
require (_to != 0x0); // Prevent transfer to 0x0 address. Use burn() instead
require (balanceOf[_from] > _value); // Check if the sender has enough
require (balanceOf[_to] + _value > balanceOf[_to]); // Check for overflows
require(!frozenAccount[_from]); // Check if sender is frozen
require(!frozenAccount[_to]); // Check if recipient is frozen
balanceOf[_from] -= _value; // Subtract from the sender
balanceOf[_to] += _value; // Add the same to the recipient
Transfer(_from, _to, _value);
}
/// @notice Create `mintedAmount` tokens and send it to `target`
/// @param target Address to receive the tokens
/// @param mintedAmount the amount of tokens it will receive
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens
/// @param target Address to be frozen
/// @param freeze either to freeze it or not
function freezeAccount(address target, bool freeze) onlyOwner public {
frozenAccount[target] = freeze;
FrozenFunds(target, freeze);
}
} | freezeAccount | function freezeAccount(address target, bool freeze) onlyOwner public {
frozenAccount[target] = freeze;
FrozenFunds(target, freeze);
}
| /// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens
/// @param target Address to be frozen
/// @param freeze either to freeze it or not | NatSpecSingleLine | v0.4.19-nightly.2017.11.11+commit.284c3839 | bzzr://f0f06e979ee1182b0f7603acdfe27b9a1692bdf099977a82a0bbf52567cc34e1 | {
"func_code_index": [
2050,
2211
]
} | 4,346 |
|||
LiquidityMining | contracts/IMigrator.sol | 0x8a5827ad1f28d3f397b748ce89895e437b8ef90d | Solidity | IMigrator | interface IMigrator {
// Perform LP token migration from legacy LPMining CompliFi to newer version.
// Take the current LP token address and return the new LP token address.
// Migrator should have full access to the caller's LP token.
// Return the new LP token address.
//
// XXX Migrator must have allowance access to CompliFi LP tokens.
// CompliFi must mint EXACTLY the same amount of ComplFi LP tokens or
// else something bad will happen.
function migrate(IERC20 token) external returns (IERC20);
} | migrate | function migrate(IERC20 token) external returns (IERC20);
| // Perform LP token migration from legacy LPMining CompliFi to newer version.
// Take the current LP token address and return the new LP token address.
// Migrator should have full access to the caller's LP token.
// Return the new LP token address.
//
// XXX Migrator must have allowance access to CompliFi LP tokens.
// CompliFi must mint EXACTLY the same amount of ComplFi LP tokens or
// else something bad will happen. | LineComment | v0.7.6+commit.7338295f | {
"func_code_index": [
478,
539
]
} | 4,347 |
||||
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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);
} | totalSupply | function totalSupply() external view returns (uint256);
| /**
* @dev Returns the amount of tokens in existence.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
94,
154
]
} | 4,348 |
||
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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);
} | balanceOf | function balanceOf(address account) external view returns (uint256);
| /**
* @dev Returns the amount of tokens owned by `account`.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
237,
310
]
} | 4,349 |
||
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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);
} | 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 | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
534,
616
]
} | 4,350 |
||
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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);
} | 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 | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
895,
983
]
} | 4,351 |
||
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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);
} | 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 | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1647,
1726
]
} | 4,352 |
||
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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);
} | 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 | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
2039,
2175
]
} | 4,353 |
||
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | IERC20Metadata | interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
} | /**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/ | NatSpecMultiLine | name | function name() external view returns (string memory);
| /**
* @dev Returns the name of the token.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
100,
159
]
} | 4,354 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | IERC20Metadata | interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
} | /**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/ | NatSpecMultiLine | symbol | function symbol() external view returns (string memory);
| /**
* @dev Returns the symbol of the token.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
226,
287
]
} | 4,355 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | IERC20Metadata | interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
} | /**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/ | NatSpecMultiLine | decimals | function decimals() external view returns (uint8);
| /**
* @dev Returns the decimals places of the token.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
363,
418
]
} | 4,356 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | Ownable | abstract contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_previousOwner = _owner;
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function geUnlockTime() public view returns (uint256) {
return _lockTime;
}
//Locks the contract for owner for the amount of time provided
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = block.timestamp + time;
emit OwnershipTransferred(_owner, address(0));
}
//Unlocks the contract for owner when _lockTime is exceeds
function deleteTimeStamp() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
}
} | // Ownable | LineComment | owner | function owner() public view returns (address) {
return _owner;
}
| /**
* @dev Returns the address of the current owner.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
566,
650
]
} | 4,357 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | Ownable | abstract contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_previousOwner = _owner;
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function geUnlockTime() public view returns (uint256) {
return _lockTime;
}
//Locks the contract for owner for the amount of time provided
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = block.timestamp + time;
emit OwnershipTransferred(_owner, address(0));
}
//Unlocks the contract for owner when _lockTime is exceeds
function deleteTimeStamp() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
}
} | // Ownable | LineComment | renounceOwnership | function renounceOwnership() public virtual onlyOwner {
_previousOwner = _owner;
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
| /**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1208,
1395
]
} | 4,358 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | Ownable | abstract contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_previousOwner = _owner;
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function geUnlockTime() public view returns (uint256) {
return _lockTime;
}
//Locks the contract for owner for the amount of time provided
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = block.timestamp + time;
emit OwnershipTransferred(_owner, address(0));
}
//Unlocks the contract for owner when _lockTime is exceeds
function deleteTimeStamp() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
}
} | // Ownable | LineComment | transferOwnership | function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
| /**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1545,
1794
]
} | 4,359 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | Ownable | abstract contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_previousOwner = _owner;
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function geUnlockTime() public view returns (uint256) {
return _lockTime;
}
//Locks the contract for owner for the amount of time provided
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = block.timestamp + time;
emit OwnershipTransferred(_owner, address(0));
}
//Unlocks the contract for owner when _lockTime is exceeds
function deleteTimeStamp() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
}
} | // Ownable | LineComment | lock | function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = block.timestamp + time;
emit OwnershipTransferred(_owner, address(0));
}
| //Locks the contract for owner for the amount of time provided | LineComment | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1966,
2197
]
} | 4,360 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | Ownable | abstract contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_previousOwner = _owner;
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function geUnlockTime() public view returns (uint256) {
return _lockTime;
}
//Locks the contract for owner for the amount of time provided
function lock(uint256 time) public virtual onlyOwner {
_previousOwner = _owner;
_owner = address(0);
_lockTime = block.timestamp + time;
emit OwnershipTransferred(_owner, address(0));
}
//Unlocks the contract for owner when _lockTime is exceeds
function deleteTimeStamp() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
}
} | // Ownable | LineComment | deleteTimeStamp | function deleteTimeStamp() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
}
| //Unlocks the contract for owner when _lockTime is exceeds | LineComment | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
2268,
2504
]
} | 4,361 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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.
*/
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.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | // SafeMath | LineComment | 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 | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
259,
445
]
} | 4,362 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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.
*/
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.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | // SafeMath | LineComment | 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 | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
723,
864
]
} | 4,363 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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.
*/
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.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | // SafeMath | LineComment | 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.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1162,
1359
]
} | 4,364 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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.
*/
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.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | // SafeMath | LineComment | 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 | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1613,
2089
]
} | 4,365 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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.
*/
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.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | // SafeMath | LineComment | 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 | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
2560,
2697
]
} | 4,366 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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.
*/
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.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | // SafeMath | LineComment | div | function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
3188,
3471
]
} | 4,367 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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.
*/
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.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | // SafeMath | LineComment | 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 | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
3931,
4066
]
} | 4,368 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | 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.
*/
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.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
} | // SafeMath | LineComment | 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.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
4546,
4717
]
} | 4,369 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | SafeMathInt | library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);
/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}
/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);
// Solidity already throws when dividing by 0.
return a / b;
}
/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}
/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
/**
* @dev Converts to absolute value, and fails on overflow.
*/
function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}
function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
} | /**
* @title SafeMathInt
* @dev Math operations for int256 with overflow safety checks.
*/ | NatSpecMultiLine | mul | function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}
| /**
* @dev Multiplies two int256 variables and fails on overflow.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
234,
542
]
} | 4,370 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | SafeMathInt | library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);
/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}
/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);
// Solidity already throws when dividing by 0.
return a / b;
}
/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}
/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
/**
* @dev Converts to absolute value, and fails on overflow.
*/
function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}
function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
} | /**
* @title SafeMathInt
* @dev Math operations for int256 with overflow safety checks.
*/ | NatSpecMultiLine | div | function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);
// Solidity already throws when dividing by 0.
return a / b;
}
| /**
* @dev Division of two int256 variables and fails on overflow.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
632,
896
]
} | 4,371 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | SafeMathInt | library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);
/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}
/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);
// Solidity already throws when dividing by 0.
return a / b;
}
/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}
/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
/**
* @dev Converts to absolute value, and fails on overflow.
*/
function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}
function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
} | /**
* @title SafeMathInt
* @dev Math operations for int256 with overflow safety checks.
*/ | NatSpecMultiLine | sub | function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}
| /**
* @dev Subtracts two int256 variables and fails on overflow.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
984,
1165
]
} | 4,372 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | SafeMathInt | library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);
/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}
/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);
// Solidity already throws when dividing by 0.
return a / b;
}
/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}
/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
/**
* @dev Converts to absolute value, and fails on overflow.
*/
function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}
function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
} | /**
* @title SafeMathInt
* @dev Math operations for int256 with overflow safety checks.
*/ | NatSpecMultiLine | add | function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
| /**
* @dev Adds two int256 variables and fails on overflow.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1248,
1429
]
} | 4,373 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | SafeMathInt | library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);
/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;
// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}
/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);
// Solidity already throws when dividing by 0.
return a / b;
}
/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}
/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a + b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}
/**
* @dev Converts to absolute value, and fails on overflow.
*/
function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}
function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
} | /**
* @title SafeMathInt
* @dev Math operations for int256 with overflow safety checks.
*/ | NatSpecMultiLine | abs | function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}
| /**
* @dev Converts to absolute value, and fails on overflow.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1514,
1648
]
} | 4,374 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | name | function name() public view virtual override returns (string memory) {
return _name;
}
| /**
* @dev Returns the name of the token.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
820,
925
]
} | 4,375 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | symbol | function symbol() public view virtual override returns (string memory) {
return _symbol;
}
| /**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1039,
1148
]
} | 4,376 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | decimals | function decimals() public view virtual override returns (uint8) {
return 9;
}
| /**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1781,
1878
]
} | 4,377 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | totalSupply | function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
| /**
* @dev See {IERC20-totalSupply}.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
1938,
2051
]
} | 4,378 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | balanceOf | function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
| /**
* @dev See {IERC20-balanceOf}.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
2109,
2241
]
} | 4,379 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | transfer | function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
| /**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
2449,
2629
]
} | 4,380 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | allowance | function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
| /**
* @dev See {IERC20-allowance}.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
2687,
2843
]
} | 4,381 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | approve | function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
| /**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
2985,
3159
]
} | 4,382 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | transferFrom | function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
| /**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
3636,
3996
]
} | 4,383 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | increaseAllowance | function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
| /**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
4400,
4623
]
} | 4,384 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | decreaseAllowance | function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
| /**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
5121,
5395
]
} | 4,385 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _transfer | function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
| /**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
5880,
6456
]
} | 4,386 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _mint | function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
| /** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
6738,
7121
]
} | 4,387 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _burn | function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
| /**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
7449,
7872
]
} | 4,388 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _approve | function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
| /**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
8425,
8810
]
} | 4,389 |
ShermanCapital | ShermanCapital.sol | 0xb0b507f7520e2f0a1f14aa2ea05b911a4a09fe44 | Solidity | ERC20 | abstract contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 9. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 9, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
function _createLP(address account, uint256 amount) internal virtual {
_mint(account, amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
} | /**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin guidelines: functions revert instead
* of returning `false` on failure. This behavior is nonetheless conventional
* and does not conflict with the expectations of ERC20 applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/ | NatSpecMultiLine | _beforeTokenTransfer | function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
| /**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | None | ipfs://579a0a3422aa087773ce1415b6a318898cea452078921ec63082d7714657c6f0 | {
"func_code_index": [
9408,
9538
]
} | 4,390 |
NfToken | contracts/NfToken.sol | 0x3146dd9c200421a9c7d7b67bd1b75ba3e2c15310 | Solidity | NfToken | contract NfToken is ERC721Enumerable {
using SafeMath for uint256;
using Library for uint8;
struct Trait {
string traitName;
string traitType;
string pixels;
uint256 pixelCount;
}
//Mappings
mapping(uint256 => Trait[]) public traitTypes;
mapping(string => bool) hashToMinted;
mapping(uint256 => string) internal tokenIdToHash;
//uint256s
uint256 MAX_SUPPLY = 10000;
uint256 MINTS_PER_TIER = 2000;
uint256 SEED_NONCE = 0;
uint256 MINT_START = 1633964400;
uint256 MINT_DELAY = 43200;
uint256 START_PRICE = 30000000000000000;
uint256 PRICE_DIFF = 5000000000000000;
//string arrays
string[] LETTERS = [
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z"
];
//uint arrays
uint16[][8] TIERS;
//address
address tokenAddress;
address _owner;
constructor() ERC721("Moose", "MOOSE") {
_owner = msg.sender;
//Declare all the rarity tiers
//Hat
TIERS[0] = [4700, 3000, 1000, 1000, 200, 50, 50];
//Antlers
TIERS[1] = [250, 500, 2500, 2250, 2250, 2250];
//Neck
TIERS[2] = [4000, 2500, 1500, 1500, 500];
//Eyes
TIERS[3] = [50, 100, 150, 200, 500, 500, 1000, 1500, 3000, 3000];
//Earrings
TIERS[4] = [7000, 2000, 500, 200, 200, 50, 50];
//Mouth
TIERS[5] = [1428, 1428, 1428, 1429, 1429, 1429, 1429];
//Character
TIERS[6] = [1950, 1950, 1950, 1950, 1950, 200, 50];
//Accessory
TIERS[7] = [9700, 200, 50, 50];
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/
function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
/**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/
function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
/**
* @dev Returns the current cost of minting.
*/
function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
/**
* @dev Returns the current ETH price to mint
*/
function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
/**
* @dev Mint internal, this is to avoid code duplication.
*/
function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
/**
* @dev Mints new tokens.
*/
function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
/**
* @dev Mint for token
*/
function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
/**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/
function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Helper function to reduce pixel size within contract
*/
function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
/**
* @dev Hash to SVG function
*/
function hashToSVG(string memory _hash)
public
view
returns (string memory)
{
string memory svgString;
bool[24][24] memory placedPixels;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
for (
uint16 j = 0;
j < traitTypes[i][thisTraitIndex].pixelCount;
j++
) {
string memory thisPixel = Library.substring(
traitTypes[i][thisTraitIndex].pixels,
j * 4,
j * 4 + 4
);
uint8 x = letterToNumber(
Library.substring(thisPixel, 0, 1)
);
uint8 y = letterToNumber(
Library.substring(thisPixel, 1, 2)
);
if (placedPixels[x][y]) continue;
svgString = string(
abi.encodePacked(
svgString,
"<rect class='c",
Library.substring(thisPixel, 2, 4),
"' x='",
x.toString(),
"' y='",
y.toString(),
"'/>"
)
);
placedPixels[x][y] = true;
}
}
svgString = string(
abi.encodePacked(
'<svg id="mouse-svg" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 24 24"> <rect class="bg" x="0" y="0" />',
svgString,
"<style>rect.bg{width:24px;height:24px;fill:#B6EAFF} rect{width:1px;height:1px;} #mouse-svg{shape-rendering: crispedges;} .c00{fill:#000000}.c01{fill:#B1ADAC}.c02{fill:#D7D7D7}.c03{fill:#FFA6A6}.c04{fill:#FFD4D5}.c05{fill:#B9AD95}.c06{fill:#E2D6BE}.c07{fill:#7F625A}.c08{fill:#A58F82}.c09{fill:#4B1E0B}.c10{fill:#6D2C10}.c11{fill:#D8D8D8}.c12{fill:#F5F5F5}.c13{fill:#433D4B}.c14{fill:#8D949C}.c15{fill:#05FF00}.c16{fill:#01C700}.c17{fill:#0B8F08}.c18{fill:#421C13}.c19{fill:#6B392A}.c20{fill:#A35E40}.c21{fill:#DCBD91}.c22{fill:#777777}.c23{fill:#848484}.c24{fill:#ABABAB}.c25{fill:#BABABA}.c26{fill:#C7C7C7}.c27{fill:#EAEAEA}.c28{fill:#0C76AA}.c29{fill:#0E97DB}.c30{fill:#10A4EC}.c31{fill:#13B0FF}.c32{fill:#2EB9FE}.c33{fill:#54CCFF}.c34{fill:#50C0F2}.c35{fill:#54CCFF}.c36{fill:#72DAFF}.c37{fill:#B6EAFF}.c38{fill:#FFFFFF}.c39{fill:#954546}.c40{fill:#0B87F7}.c41{fill:#FF2626}.c42{fill:#180F02}.c43{fill:#2B2319}.c44{fill:#FBDD4B}.c45{fill:#F5B923}.c46{fill:#CC8A18}.c47{fill:#3C2203}.c48{fill:#53320B}.c49{fill:#7B501D}.c50{fill:#FFE646}.c51{fill:#FFD627}.c52{fill:#F5B700}.c53{fill:#242424}.c54{fill:#4A4A4A}.c55{fill:#676767}.c56{fill:#F08306}.c57{fill:#FCA30E}.c58{fill:#FEBC0E}.c59{fill:#FBEC1C}.c60{fill:#14242F}.c61{fill:#B06837}.c62{fill:#8F4B0E}.c63{fill:#D88227}.c64{fill:#B06837}</style></svg>"
)
);
return svgString;
}
/**
* @dev Hash to metadata function
*/
function hashToMetadata(string memory _hash)
public
view
returns (string memory)
{
string memory metadataString;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
metadataString = string(
abi.encodePacked(
metadataString,
'{"trait_type":"',
traitTypes[i][thisTraitIndex].traitType,
'","value":"',
traitTypes[i][thisTraitIndex].traitName,
'"}'
)
);
if (i != 8)
metadataString = string(abi.encodePacked(metadataString, ","));
}
return string(abi.encodePacked("[", metadataString, "]"));
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory tokenHash = _tokenIdToHash(_tokenId);
return
string(
abi.encodePacked(
"data:application/json;base64,",
Library.encode(
bytes(
string(
abi.encodePacked(
'{"name": "NfToken #',
Library.toString(_tokenId),
'", "description": "This is a collection of 10,000 unique images. All the metadata and images are generated and stored 100% on-chain. No IPFS, no API.", "image": "data:image/svg+xml;base64,',
Library.encode(
bytes(hashToSVG(tokenHash))
),
'","attributes":',
hashToMetadata(tokenHash),
"}"
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToHash(uint256 _tokenId)
public
view
returns (string memory)
{
string memory tokenHash = tokenIdToHash[_tokenId];
//If this is a burned token, override the previous hash
if (ownerOf(_tokenId) == 0x000000000000000000000000000000000000dEaD) {
tokenHash = string(
abi.encodePacked(
"1",
Library.substring(tokenHash, 1, 9)
)
);
}
return tokenHash;
}
/**
* @dev Returns the wallet of a given wallet. Mainly for ease for frontend devs.
* @param _wallet The wallet to get the tokens of.
*/
function walletOfOwner(address _wallet)
public
view
returns (uint256[] memory)
{
uint256 tokenCount = balanceOf(_wallet);
uint256[] memory tokensId = new uint256[](tokenCount);
for (uint256 i; i < tokenCount; i++) {
tokensId[i] = tokenOfOwnerByIndex(_wallet, i);
}
return tokensId;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Clears the traits.
*/
function clearTraits() public onlyOwner {
for (uint256 i = 0; i < 9; i++) {
delete traitTypes[i];
}
}
/**
* @dev Add a trait type
* @param _traitTypeIndex The trait type index
* @param traits Array of traits to add
*/
function addTraitType(uint256 _traitTypeIndex, Trait[] memory traits)
public
onlyOwner
{
for (uint256 i = 0; i < traits.length; i++) {
traitTypes[_traitTypeIndex].push(
Trait(
traits[i].traitName,
traits[i].traitType,
traits[i].pixels,
traits[i].pixelCount
)
);
}
return;
}
/**
* @dev Sets the ERC20 token address
* @param _tokenAddress The token address
*/
function setTokenAddress(address _tokenAddress) public onlyOwner {
tokenAddress = _tokenAddress;
}
/**
* @dev Transfers ownership
* @param _newOwner The new owner
*/
function transferOwnership(address _newOwner) public onlyOwner {
_owner = _newOwner;
}
/**
* @dev Withdraw ETH to owner
*/
function withdraw() public onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
/**
* @dev Modifier to only allow owner to call functions
*/
modifier onlyOwner() {
require(_owner == msg.sender);
_;
}
} | rarityGen | function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
| /**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | None | ipfs://95df3398ec2a2913850d0e25d77bea187e5bc19916b0df9ae930719f2d8b641f | {
"func_code_index": [
2562,
3139
]
} | 4,391 |
||
NfToken | contracts/NfToken.sol | 0x3146dd9c200421a9c7d7b67bd1b75ba3e2c15310 | Solidity | NfToken | contract NfToken is ERC721Enumerable {
using SafeMath for uint256;
using Library for uint8;
struct Trait {
string traitName;
string traitType;
string pixels;
uint256 pixelCount;
}
//Mappings
mapping(uint256 => Trait[]) public traitTypes;
mapping(string => bool) hashToMinted;
mapping(uint256 => string) internal tokenIdToHash;
//uint256s
uint256 MAX_SUPPLY = 10000;
uint256 MINTS_PER_TIER = 2000;
uint256 SEED_NONCE = 0;
uint256 MINT_START = 1633964400;
uint256 MINT_DELAY = 43200;
uint256 START_PRICE = 30000000000000000;
uint256 PRICE_DIFF = 5000000000000000;
//string arrays
string[] LETTERS = [
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z"
];
//uint arrays
uint16[][8] TIERS;
//address
address tokenAddress;
address _owner;
constructor() ERC721("Moose", "MOOSE") {
_owner = msg.sender;
//Declare all the rarity tiers
//Hat
TIERS[0] = [4700, 3000, 1000, 1000, 200, 50, 50];
//Antlers
TIERS[1] = [250, 500, 2500, 2250, 2250, 2250];
//Neck
TIERS[2] = [4000, 2500, 1500, 1500, 500];
//Eyes
TIERS[3] = [50, 100, 150, 200, 500, 500, 1000, 1500, 3000, 3000];
//Earrings
TIERS[4] = [7000, 2000, 500, 200, 200, 50, 50];
//Mouth
TIERS[5] = [1428, 1428, 1428, 1429, 1429, 1429, 1429];
//Character
TIERS[6] = [1950, 1950, 1950, 1950, 1950, 200, 50];
//Accessory
TIERS[7] = [9700, 200, 50, 50];
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/
function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
/**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/
function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
/**
* @dev Returns the current cost of minting.
*/
function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
/**
* @dev Returns the current ETH price to mint
*/
function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
/**
* @dev Mint internal, this is to avoid code duplication.
*/
function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
/**
* @dev Mints new tokens.
*/
function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
/**
* @dev Mint for token
*/
function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
/**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/
function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Helper function to reduce pixel size within contract
*/
function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
/**
* @dev Hash to SVG function
*/
function hashToSVG(string memory _hash)
public
view
returns (string memory)
{
string memory svgString;
bool[24][24] memory placedPixels;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
for (
uint16 j = 0;
j < traitTypes[i][thisTraitIndex].pixelCount;
j++
) {
string memory thisPixel = Library.substring(
traitTypes[i][thisTraitIndex].pixels,
j * 4,
j * 4 + 4
);
uint8 x = letterToNumber(
Library.substring(thisPixel, 0, 1)
);
uint8 y = letterToNumber(
Library.substring(thisPixel, 1, 2)
);
if (placedPixels[x][y]) continue;
svgString = string(
abi.encodePacked(
svgString,
"<rect class='c",
Library.substring(thisPixel, 2, 4),
"' x='",
x.toString(),
"' y='",
y.toString(),
"'/>"
)
);
placedPixels[x][y] = true;
}
}
svgString = string(
abi.encodePacked(
'<svg id="mouse-svg" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 24 24"> <rect class="bg" x="0" y="0" />',
svgString,
"<style>rect.bg{width:24px;height:24px;fill:#B6EAFF} rect{width:1px;height:1px;} #mouse-svg{shape-rendering: crispedges;} .c00{fill:#000000}.c01{fill:#B1ADAC}.c02{fill:#D7D7D7}.c03{fill:#FFA6A6}.c04{fill:#FFD4D5}.c05{fill:#B9AD95}.c06{fill:#E2D6BE}.c07{fill:#7F625A}.c08{fill:#A58F82}.c09{fill:#4B1E0B}.c10{fill:#6D2C10}.c11{fill:#D8D8D8}.c12{fill:#F5F5F5}.c13{fill:#433D4B}.c14{fill:#8D949C}.c15{fill:#05FF00}.c16{fill:#01C700}.c17{fill:#0B8F08}.c18{fill:#421C13}.c19{fill:#6B392A}.c20{fill:#A35E40}.c21{fill:#DCBD91}.c22{fill:#777777}.c23{fill:#848484}.c24{fill:#ABABAB}.c25{fill:#BABABA}.c26{fill:#C7C7C7}.c27{fill:#EAEAEA}.c28{fill:#0C76AA}.c29{fill:#0E97DB}.c30{fill:#10A4EC}.c31{fill:#13B0FF}.c32{fill:#2EB9FE}.c33{fill:#54CCFF}.c34{fill:#50C0F2}.c35{fill:#54CCFF}.c36{fill:#72DAFF}.c37{fill:#B6EAFF}.c38{fill:#FFFFFF}.c39{fill:#954546}.c40{fill:#0B87F7}.c41{fill:#FF2626}.c42{fill:#180F02}.c43{fill:#2B2319}.c44{fill:#FBDD4B}.c45{fill:#F5B923}.c46{fill:#CC8A18}.c47{fill:#3C2203}.c48{fill:#53320B}.c49{fill:#7B501D}.c50{fill:#FFE646}.c51{fill:#FFD627}.c52{fill:#F5B700}.c53{fill:#242424}.c54{fill:#4A4A4A}.c55{fill:#676767}.c56{fill:#F08306}.c57{fill:#FCA30E}.c58{fill:#FEBC0E}.c59{fill:#FBEC1C}.c60{fill:#14242F}.c61{fill:#B06837}.c62{fill:#8F4B0E}.c63{fill:#D88227}.c64{fill:#B06837}</style></svg>"
)
);
return svgString;
}
/**
* @dev Hash to metadata function
*/
function hashToMetadata(string memory _hash)
public
view
returns (string memory)
{
string memory metadataString;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
metadataString = string(
abi.encodePacked(
metadataString,
'{"trait_type":"',
traitTypes[i][thisTraitIndex].traitType,
'","value":"',
traitTypes[i][thisTraitIndex].traitName,
'"}'
)
);
if (i != 8)
metadataString = string(abi.encodePacked(metadataString, ","));
}
return string(abi.encodePacked("[", metadataString, "]"));
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory tokenHash = _tokenIdToHash(_tokenId);
return
string(
abi.encodePacked(
"data:application/json;base64,",
Library.encode(
bytes(
string(
abi.encodePacked(
'{"name": "NfToken #',
Library.toString(_tokenId),
'", "description": "This is a collection of 10,000 unique images. All the metadata and images are generated and stored 100% on-chain. No IPFS, no API.", "image": "data:image/svg+xml;base64,',
Library.encode(
bytes(hashToSVG(tokenHash))
),
'","attributes":',
hashToMetadata(tokenHash),
"}"
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToHash(uint256 _tokenId)
public
view
returns (string memory)
{
string memory tokenHash = tokenIdToHash[_tokenId];
//If this is a burned token, override the previous hash
if (ownerOf(_tokenId) == 0x000000000000000000000000000000000000dEaD) {
tokenHash = string(
abi.encodePacked(
"1",
Library.substring(tokenHash, 1, 9)
)
);
}
return tokenHash;
}
/**
* @dev Returns the wallet of a given wallet. Mainly for ease for frontend devs.
* @param _wallet The wallet to get the tokens of.
*/
function walletOfOwner(address _wallet)
public
view
returns (uint256[] memory)
{
uint256 tokenCount = balanceOf(_wallet);
uint256[] memory tokensId = new uint256[](tokenCount);
for (uint256 i; i < tokenCount; i++) {
tokensId[i] = tokenOfOwnerByIndex(_wallet, i);
}
return tokensId;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Clears the traits.
*/
function clearTraits() public onlyOwner {
for (uint256 i = 0; i < 9; i++) {
delete traitTypes[i];
}
}
/**
* @dev Add a trait type
* @param _traitTypeIndex The trait type index
* @param traits Array of traits to add
*/
function addTraitType(uint256 _traitTypeIndex, Trait[] memory traits)
public
onlyOwner
{
for (uint256 i = 0; i < traits.length; i++) {
traitTypes[_traitTypeIndex].push(
Trait(
traits[i].traitName,
traits[i].traitType,
traits[i].pixels,
traits[i].pixelCount
)
);
}
return;
}
/**
* @dev Sets the ERC20 token address
* @param _tokenAddress The token address
*/
function setTokenAddress(address _tokenAddress) public onlyOwner {
tokenAddress = _tokenAddress;
}
/**
* @dev Transfers ownership
* @param _newOwner The new owner
*/
function transferOwnership(address _newOwner) public onlyOwner {
_owner = _newOwner;
}
/**
* @dev Withdraw ETH to owner
*/
function withdraw() public onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
/**
* @dev Modifier to only allow owner to call functions
*/
modifier onlyOwner() {
require(_owner == msg.sender);
_;
}
} | hash | function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
| /**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | None | ipfs://95df3398ec2a2913850d0e25d77bea187e5bc19916b0df9ae930719f2d8b641f | {
"func_code_index": [
3422,
4544
]
} | 4,392 |
||
NfToken | contracts/NfToken.sol | 0x3146dd9c200421a9c7d7b67bd1b75ba3e2c15310 | Solidity | NfToken | contract NfToken is ERC721Enumerable {
using SafeMath for uint256;
using Library for uint8;
struct Trait {
string traitName;
string traitType;
string pixels;
uint256 pixelCount;
}
//Mappings
mapping(uint256 => Trait[]) public traitTypes;
mapping(string => bool) hashToMinted;
mapping(uint256 => string) internal tokenIdToHash;
//uint256s
uint256 MAX_SUPPLY = 10000;
uint256 MINTS_PER_TIER = 2000;
uint256 SEED_NONCE = 0;
uint256 MINT_START = 1633964400;
uint256 MINT_DELAY = 43200;
uint256 START_PRICE = 30000000000000000;
uint256 PRICE_DIFF = 5000000000000000;
//string arrays
string[] LETTERS = [
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z"
];
//uint arrays
uint16[][8] TIERS;
//address
address tokenAddress;
address _owner;
constructor() ERC721("Moose", "MOOSE") {
_owner = msg.sender;
//Declare all the rarity tiers
//Hat
TIERS[0] = [4700, 3000, 1000, 1000, 200, 50, 50];
//Antlers
TIERS[1] = [250, 500, 2500, 2250, 2250, 2250];
//Neck
TIERS[2] = [4000, 2500, 1500, 1500, 500];
//Eyes
TIERS[3] = [50, 100, 150, 200, 500, 500, 1000, 1500, 3000, 3000];
//Earrings
TIERS[4] = [7000, 2000, 500, 200, 200, 50, 50];
//Mouth
TIERS[5] = [1428, 1428, 1428, 1429, 1429, 1429, 1429];
//Character
TIERS[6] = [1950, 1950, 1950, 1950, 1950, 200, 50];
//Accessory
TIERS[7] = [9700, 200, 50, 50];
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/
function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
/**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/
function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
/**
* @dev Returns the current cost of minting.
*/
function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
/**
* @dev Returns the current ETH price to mint
*/
function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
/**
* @dev Mint internal, this is to avoid code duplication.
*/
function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
/**
* @dev Mints new tokens.
*/
function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
/**
* @dev Mint for token
*/
function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
/**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/
function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Helper function to reduce pixel size within contract
*/
function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
/**
* @dev Hash to SVG function
*/
function hashToSVG(string memory _hash)
public
view
returns (string memory)
{
string memory svgString;
bool[24][24] memory placedPixels;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
for (
uint16 j = 0;
j < traitTypes[i][thisTraitIndex].pixelCount;
j++
) {
string memory thisPixel = Library.substring(
traitTypes[i][thisTraitIndex].pixels,
j * 4,
j * 4 + 4
);
uint8 x = letterToNumber(
Library.substring(thisPixel, 0, 1)
);
uint8 y = letterToNumber(
Library.substring(thisPixel, 1, 2)
);
if (placedPixels[x][y]) continue;
svgString = string(
abi.encodePacked(
svgString,
"<rect class='c",
Library.substring(thisPixel, 2, 4),
"' x='",
x.toString(),
"' y='",
y.toString(),
"'/>"
)
);
placedPixels[x][y] = true;
}
}
svgString = string(
abi.encodePacked(
'<svg id="mouse-svg" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 24 24"> <rect class="bg" x="0" y="0" />',
svgString,
"<style>rect.bg{width:24px;height:24px;fill:#B6EAFF} rect{width:1px;height:1px;} #mouse-svg{shape-rendering: crispedges;} .c00{fill:#000000}.c01{fill:#B1ADAC}.c02{fill:#D7D7D7}.c03{fill:#FFA6A6}.c04{fill:#FFD4D5}.c05{fill:#B9AD95}.c06{fill:#E2D6BE}.c07{fill:#7F625A}.c08{fill:#A58F82}.c09{fill:#4B1E0B}.c10{fill:#6D2C10}.c11{fill:#D8D8D8}.c12{fill:#F5F5F5}.c13{fill:#433D4B}.c14{fill:#8D949C}.c15{fill:#05FF00}.c16{fill:#01C700}.c17{fill:#0B8F08}.c18{fill:#421C13}.c19{fill:#6B392A}.c20{fill:#A35E40}.c21{fill:#DCBD91}.c22{fill:#777777}.c23{fill:#848484}.c24{fill:#ABABAB}.c25{fill:#BABABA}.c26{fill:#C7C7C7}.c27{fill:#EAEAEA}.c28{fill:#0C76AA}.c29{fill:#0E97DB}.c30{fill:#10A4EC}.c31{fill:#13B0FF}.c32{fill:#2EB9FE}.c33{fill:#54CCFF}.c34{fill:#50C0F2}.c35{fill:#54CCFF}.c36{fill:#72DAFF}.c37{fill:#B6EAFF}.c38{fill:#FFFFFF}.c39{fill:#954546}.c40{fill:#0B87F7}.c41{fill:#FF2626}.c42{fill:#180F02}.c43{fill:#2B2319}.c44{fill:#FBDD4B}.c45{fill:#F5B923}.c46{fill:#CC8A18}.c47{fill:#3C2203}.c48{fill:#53320B}.c49{fill:#7B501D}.c50{fill:#FFE646}.c51{fill:#FFD627}.c52{fill:#F5B700}.c53{fill:#242424}.c54{fill:#4A4A4A}.c55{fill:#676767}.c56{fill:#F08306}.c57{fill:#FCA30E}.c58{fill:#FEBC0E}.c59{fill:#FBEC1C}.c60{fill:#14242F}.c61{fill:#B06837}.c62{fill:#8F4B0E}.c63{fill:#D88227}.c64{fill:#B06837}</style></svg>"
)
);
return svgString;
}
/**
* @dev Hash to metadata function
*/
function hashToMetadata(string memory _hash)
public
view
returns (string memory)
{
string memory metadataString;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
metadataString = string(
abi.encodePacked(
metadataString,
'{"trait_type":"',
traitTypes[i][thisTraitIndex].traitType,
'","value":"',
traitTypes[i][thisTraitIndex].traitName,
'"}'
)
);
if (i != 8)
metadataString = string(abi.encodePacked(metadataString, ","));
}
return string(abi.encodePacked("[", metadataString, "]"));
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory tokenHash = _tokenIdToHash(_tokenId);
return
string(
abi.encodePacked(
"data:application/json;base64,",
Library.encode(
bytes(
string(
abi.encodePacked(
'{"name": "NfToken #',
Library.toString(_tokenId),
'", "description": "This is a collection of 10,000 unique images. All the metadata and images are generated and stored 100% on-chain. No IPFS, no API.", "image": "data:image/svg+xml;base64,',
Library.encode(
bytes(hashToSVG(tokenHash))
),
'","attributes":',
hashToMetadata(tokenHash),
"}"
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToHash(uint256 _tokenId)
public
view
returns (string memory)
{
string memory tokenHash = tokenIdToHash[_tokenId];
//If this is a burned token, override the previous hash
if (ownerOf(_tokenId) == 0x000000000000000000000000000000000000dEaD) {
tokenHash = string(
abi.encodePacked(
"1",
Library.substring(tokenHash, 1, 9)
)
);
}
return tokenHash;
}
/**
* @dev Returns the wallet of a given wallet. Mainly for ease for frontend devs.
* @param _wallet The wallet to get the tokens of.
*/
function walletOfOwner(address _wallet)
public
view
returns (uint256[] memory)
{
uint256 tokenCount = balanceOf(_wallet);
uint256[] memory tokensId = new uint256[](tokenCount);
for (uint256 i; i < tokenCount; i++) {
tokensId[i] = tokenOfOwnerByIndex(_wallet, i);
}
return tokensId;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Clears the traits.
*/
function clearTraits() public onlyOwner {
for (uint256 i = 0; i < 9; i++) {
delete traitTypes[i];
}
}
/**
* @dev Add a trait type
* @param _traitTypeIndex The trait type index
* @param traits Array of traits to add
*/
function addTraitType(uint256 _traitTypeIndex, Trait[] memory traits)
public
onlyOwner
{
for (uint256 i = 0; i < traits.length; i++) {
traitTypes[_traitTypeIndex].push(
Trait(
traits[i].traitName,
traits[i].traitType,
traits[i].pixels,
traits[i].pixelCount
)
);
}
return;
}
/**
* @dev Sets the ERC20 token address
* @param _tokenAddress The token address
*/
function setTokenAddress(address _tokenAddress) public onlyOwner {
tokenAddress = _tokenAddress;
}
/**
* @dev Transfers ownership
* @param _newOwner The new owner
*/
function transferOwnership(address _newOwner) public onlyOwner {
_owner = _newOwner;
}
/**
* @dev Withdraw ETH to owner
*/
function withdraw() public onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
/**
* @dev Modifier to only allow owner to call functions
*/
modifier onlyOwner() {
require(_owner == msg.sender);
_;
}
} | currentTokenCost | function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
| /**
* @dev Returns the current cost of minting.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | None | ipfs://95df3398ec2a2913850d0e25d77bea187e5bc19916b0df9ae930719f2d8b641f | {
"func_code_index": [
4615,
5216
]
} | 4,393 |
||
NfToken | contracts/NfToken.sol | 0x3146dd9c200421a9c7d7b67bd1b75ba3e2c15310 | Solidity | NfToken | contract NfToken is ERC721Enumerable {
using SafeMath for uint256;
using Library for uint8;
struct Trait {
string traitName;
string traitType;
string pixels;
uint256 pixelCount;
}
//Mappings
mapping(uint256 => Trait[]) public traitTypes;
mapping(string => bool) hashToMinted;
mapping(uint256 => string) internal tokenIdToHash;
//uint256s
uint256 MAX_SUPPLY = 10000;
uint256 MINTS_PER_TIER = 2000;
uint256 SEED_NONCE = 0;
uint256 MINT_START = 1633964400;
uint256 MINT_DELAY = 43200;
uint256 START_PRICE = 30000000000000000;
uint256 PRICE_DIFF = 5000000000000000;
//string arrays
string[] LETTERS = [
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z"
];
//uint arrays
uint16[][8] TIERS;
//address
address tokenAddress;
address _owner;
constructor() ERC721("Moose", "MOOSE") {
_owner = msg.sender;
//Declare all the rarity tiers
//Hat
TIERS[0] = [4700, 3000, 1000, 1000, 200, 50, 50];
//Antlers
TIERS[1] = [250, 500, 2500, 2250, 2250, 2250];
//Neck
TIERS[2] = [4000, 2500, 1500, 1500, 500];
//Eyes
TIERS[3] = [50, 100, 150, 200, 500, 500, 1000, 1500, 3000, 3000];
//Earrings
TIERS[4] = [7000, 2000, 500, 200, 200, 50, 50];
//Mouth
TIERS[5] = [1428, 1428, 1428, 1429, 1429, 1429, 1429];
//Character
TIERS[6] = [1950, 1950, 1950, 1950, 1950, 200, 50];
//Accessory
TIERS[7] = [9700, 200, 50, 50];
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/
function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
/**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/
function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
/**
* @dev Returns the current cost of minting.
*/
function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
/**
* @dev Returns the current ETH price to mint
*/
function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
/**
* @dev Mint internal, this is to avoid code duplication.
*/
function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
/**
* @dev Mints new tokens.
*/
function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
/**
* @dev Mint for token
*/
function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
/**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/
function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Helper function to reduce pixel size within contract
*/
function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
/**
* @dev Hash to SVG function
*/
function hashToSVG(string memory _hash)
public
view
returns (string memory)
{
string memory svgString;
bool[24][24] memory placedPixels;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
for (
uint16 j = 0;
j < traitTypes[i][thisTraitIndex].pixelCount;
j++
) {
string memory thisPixel = Library.substring(
traitTypes[i][thisTraitIndex].pixels,
j * 4,
j * 4 + 4
);
uint8 x = letterToNumber(
Library.substring(thisPixel, 0, 1)
);
uint8 y = letterToNumber(
Library.substring(thisPixel, 1, 2)
);
if (placedPixels[x][y]) continue;
svgString = string(
abi.encodePacked(
svgString,
"<rect class='c",
Library.substring(thisPixel, 2, 4),
"' x='",
x.toString(),
"' y='",
y.toString(),
"'/>"
)
);
placedPixels[x][y] = true;
}
}
svgString = string(
abi.encodePacked(
'<svg id="mouse-svg" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 24 24"> <rect class="bg" x="0" y="0" />',
svgString,
"<style>rect.bg{width:24px;height:24px;fill:#B6EAFF} rect{width:1px;height:1px;} #mouse-svg{shape-rendering: crispedges;} .c00{fill:#000000}.c01{fill:#B1ADAC}.c02{fill:#D7D7D7}.c03{fill:#FFA6A6}.c04{fill:#FFD4D5}.c05{fill:#B9AD95}.c06{fill:#E2D6BE}.c07{fill:#7F625A}.c08{fill:#A58F82}.c09{fill:#4B1E0B}.c10{fill:#6D2C10}.c11{fill:#D8D8D8}.c12{fill:#F5F5F5}.c13{fill:#433D4B}.c14{fill:#8D949C}.c15{fill:#05FF00}.c16{fill:#01C700}.c17{fill:#0B8F08}.c18{fill:#421C13}.c19{fill:#6B392A}.c20{fill:#A35E40}.c21{fill:#DCBD91}.c22{fill:#777777}.c23{fill:#848484}.c24{fill:#ABABAB}.c25{fill:#BABABA}.c26{fill:#C7C7C7}.c27{fill:#EAEAEA}.c28{fill:#0C76AA}.c29{fill:#0E97DB}.c30{fill:#10A4EC}.c31{fill:#13B0FF}.c32{fill:#2EB9FE}.c33{fill:#54CCFF}.c34{fill:#50C0F2}.c35{fill:#54CCFF}.c36{fill:#72DAFF}.c37{fill:#B6EAFF}.c38{fill:#FFFFFF}.c39{fill:#954546}.c40{fill:#0B87F7}.c41{fill:#FF2626}.c42{fill:#180F02}.c43{fill:#2B2319}.c44{fill:#FBDD4B}.c45{fill:#F5B923}.c46{fill:#CC8A18}.c47{fill:#3C2203}.c48{fill:#53320B}.c49{fill:#7B501D}.c50{fill:#FFE646}.c51{fill:#FFD627}.c52{fill:#F5B700}.c53{fill:#242424}.c54{fill:#4A4A4A}.c55{fill:#676767}.c56{fill:#F08306}.c57{fill:#FCA30E}.c58{fill:#FEBC0E}.c59{fill:#FBEC1C}.c60{fill:#14242F}.c61{fill:#B06837}.c62{fill:#8F4B0E}.c63{fill:#D88227}.c64{fill:#B06837}</style></svg>"
)
);
return svgString;
}
/**
* @dev Hash to metadata function
*/
function hashToMetadata(string memory _hash)
public
view
returns (string memory)
{
string memory metadataString;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
metadataString = string(
abi.encodePacked(
metadataString,
'{"trait_type":"',
traitTypes[i][thisTraitIndex].traitType,
'","value":"',
traitTypes[i][thisTraitIndex].traitName,
'"}'
)
);
if (i != 8)
metadataString = string(abi.encodePacked(metadataString, ","));
}
return string(abi.encodePacked("[", metadataString, "]"));
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory tokenHash = _tokenIdToHash(_tokenId);
return
string(
abi.encodePacked(
"data:application/json;base64,",
Library.encode(
bytes(
string(
abi.encodePacked(
'{"name": "NfToken #',
Library.toString(_tokenId),
'", "description": "This is a collection of 10,000 unique images. All the metadata and images are generated and stored 100% on-chain. No IPFS, no API.", "image": "data:image/svg+xml;base64,',
Library.encode(
bytes(hashToSVG(tokenHash))
),
'","attributes":',
hashToMetadata(tokenHash),
"}"
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToHash(uint256 _tokenId)
public
view
returns (string memory)
{
string memory tokenHash = tokenIdToHash[_tokenId];
//If this is a burned token, override the previous hash
if (ownerOf(_tokenId) == 0x000000000000000000000000000000000000dEaD) {
tokenHash = string(
abi.encodePacked(
"1",
Library.substring(tokenHash, 1, 9)
)
);
}
return tokenHash;
}
/**
* @dev Returns the wallet of a given wallet. Mainly for ease for frontend devs.
* @param _wallet The wallet to get the tokens of.
*/
function walletOfOwner(address _wallet)
public
view
returns (uint256[] memory)
{
uint256 tokenCount = balanceOf(_wallet);
uint256[] memory tokensId = new uint256[](tokenCount);
for (uint256 i; i < tokenCount; i++) {
tokensId[i] = tokenOfOwnerByIndex(_wallet, i);
}
return tokensId;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Clears the traits.
*/
function clearTraits() public onlyOwner {
for (uint256 i = 0; i < 9; i++) {
delete traitTypes[i];
}
}
/**
* @dev Add a trait type
* @param _traitTypeIndex The trait type index
* @param traits Array of traits to add
*/
function addTraitType(uint256 _traitTypeIndex, Trait[] memory traits)
public
onlyOwner
{
for (uint256 i = 0; i < traits.length; i++) {
traitTypes[_traitTypeIndex].push(
Trait(
traits[i].traitName,
traits[i].traitType,
traits[i].pixels,
traits[i].pixelCount
)
);
}
return;
}
/**
* @dev Sets the ERC20 token address
* @param _tokenAddress The token address
*/
function setTokenAddress(address _tokenAddress) public onlyOwner {
tokenAddress = _tokenAddress;
}
/**
* @dev Transfers ownership
* @param _newOwner The new owner
*/
function transferOwnership(address _newOwner) public onlyOwner {
_owner = _newOwner;
}
/**
* @dev Withdraw ETH to owner
*/
function withdraw() public onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
/**
* @dev Modifier to only allow owner to call functions
*/
modifier onlyOwner() {
require(_owner == msg.sender);
_;
}
} | currentPrice | function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
| /**
* @dev Returns the current ETH price to mint
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | None | ipfs://95df3398ec2a2913850d0e25d77bea187e5bc19916b0df9ae930719f2d8b641f | {
"func_code_index": [
5288,
5714
]
} | 4,394 |
||
NfToken | contracts/NfToken.sol | 0x3146dd9c200421a9c7d7b67bd1b75ba3e2c15310 | Solidity | NfToken | contract NfToken is ERC721Enumerable {
using SafeMath for uint256;
using Library for uint8;
struct Trait {
string traitName;
string traitType;
string pixels;
uint256 pixelCount;
}
//Mappings
mapping(uint256 => Trait[]) public traitTypes;
mapping(string => bool) hashToMinted;
mapping(uint256 => string) internal tokenIdToHash;
//uint256s
uint256 MAX_SUPPLY = 10000;
uint256 MINTS_PER_TIER = 2000;
uint256 SEED_NONCE = 0;
uint256 MINT_START = 1633964400;
uint256 MINT_DELAY = 43200;
uint256 START_PRICE = 30000000000000000;
uint256 PRICE_DIFF = 5000000000000000;
//string arrays
string[] LETTERS = [
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z"
];
//uint arrays
uint16[][8] TIERS;
//address
address tokenAddress;
address _owner;
constructor() ERC721("Moose", "MOOSE") {
_owner = msg.sender;
//Declare all the rarity tiers
//Hat
TIERS[0] = [4700, 3000, 1000, 1000, 200, 50, 50];
//Antlers
TIERS[1] = [250, 500, 2500, 2250, 2250, 2250];
//Neck
TIERS[2] = [4000, 2500, 1500, 1500, 500];
//Eyes
TIERS[3] = [50, 100, 150, 200, 500, 500, 1000, 1500, 3000, 3000];
//Earrings
TIERS[4] = [7000, 2000, 500, 200, 200, 50, 50];
//Mouth
TIERS[5] = [1428, 1428, 1428, 1429, 1429, 1429, 1429];
//Character
TIERS[6] = [1950, 1950, 1950, 1950, 1950, 200, 50];
//Accessory
TIERS[7] = [9700, 200, 50, 50];
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/
function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
/**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/
function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
/**
* @dev Returns the current cost of minting.
*/
function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
/**
* @dev Returns the current ETH price to mint
*/
function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
/**
* @dev Mint internal, this is to avoid code duplication.
*/
function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
/**
* @dev Mints new tokens.
*/
function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
/**
* @dev Mint for token
*/
function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
/**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/
function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Helper function to reduce pixel size within contract
*/
function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
/**
* @dev Hash to SVG function
*/
function hashToSVG(string memory _hash)
public
view
returns (string memory)
{
string memory svgString;
bool[24][24] memory placedPixels;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
for (
uint16 j = 0;
j < traitTypes[i][thisTraitIndex].pixelCount;
j++
) {
string memory thisPixel = Library.substring(
traitTypes[i][thisTraitIndex].pixels,
j * 4,
j * 4 + 4
);
uint8 x = letterToNumber(
Library.substring(thisPixel, 0, 1)
);
uint8 y = letterToNumber(
Library.substring(thisPixel, 1, 2)
);
if (placedPixels[x][y]) continue;
svgString = string(
abi.encodePacked(
svgString,
"<rect class='c",
Library.substring(thisPixel, 2, 4),
"' x='",
x.toString(),
"' y='",
y.toString(),
"'/>"
)
);
placedPixels[x][y] = true;
}
}
svgString = string(
abi.encodePacked(
'<svg id="mouse-svg" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 24 24"> <rect class="bg" x="0" y="0" />',
svgString,
"<style>rect.bg{width:24px;height:24px;fill:#B6EAFF} rect{width:1px;height:1px;} #mouse-svg{shape-rendering: crispedges;} .c00{fill:#000000}.c01{fill:#B1ADAC}.c02{fill:#D7D7D7}.c03{fill:#FFA6A6}.c04{fill:#FFD4D5}.c05{fill:#B9AD95}.c06{fill:#E2D6BE}.c07{fill:#7F625A}.c08{fill:#A58F82}.c09{fill:#4B1E0B}.c10{fill:#6D2C10}.c11{fill:#D8D8D8}.c12{fill:#F5F5F5}.c13{fill:#433D4B}.c14{fill:#8D949C}.c15{fill:#05FF00}.c16{fill:#01C700}.c17{fill:#0B8F08}.c18{fill:#421C13}.c19{fill:#6B392A}.c20{fill:#A35E40}.c21{fill:#DCBD91}.c22{fill:#777777}.c23{fill:#848484}.c24{fill:#ABABAB}.c25{fill:#BABABA}.c26{fill:#C7C7C7}.c27{fill:#EAEAEA}.c28{fill:#0C76AA}.c29{fill:#0E97DB}.c30{fill:#10A4EC}.c31{fill:#13B0FF}.c32{fill:#2EB9FE}.c33{fill:#54CCFF}.c34{fill:#50C0F2}.c35{fill:#54CCFF}.c36{fill:#72DAFF}.c37{fill:#B6EAFF}.c38{fill:#FFFFFF}.c39{fill:#954546}.c40{fill:#0B87F7}.c41{fill:#FF2626}.c42{fill:#180F02}.c43{fill:#2B2319}.c44{fill:#FBDD4B}.c45{fill:#F5B923}.c46{fill:#CC8A18}.c47{fill:#3C2203}.c48{fill:#53320B}.c49{fill:#7B501D}.c50{fill:#FFE646}.c51{fill:#FFD627}.c52{fill:#F5B700}.c53{fill:#242424}.c54{fill:#4A4A4A}.c55{fill:#676767}.c56{fill:#F08306}.c57{fill:#FCA30E}.c58{fill:#FEBC0E}.c59{fill:#FBEC1C}.c60{fill:#14242F}.c61{fill:#B06837}.c62{fill:#8F4B0E}.c63{fill:#D88227}.c64{fill:#B06837}</style></svg>"
)
);
return svgString;
}
/**
* @dev Hash to metadata function
*/
function hashToMetadata(string memory _hash)
public
view
returns (string memory)
{
string memory metadataString;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
metadataString = string(
abi.encodePacked(
metadataString,
'{"trait_type":"',
traitTypes[i][thisTraitIndex].traitType,
'","value":"',
traitTypes[i][thisTraitIndex].traitName,
'"}'
)
);
if (i != 8)
metadataString = string(abi.encodePacked(metadataString, ","));
}
return string(abi.encodePacked("[", metadataString, "]"));
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory tokenHash = _tokenIdToHash(_tokenId);
return
string(
abi.encodePacked(
"data:application/json;base64,",
Library.encode(
bytes(
string(
abi.encodePacked(
'{"name": "NfToken #',
Library.toString(_tokenId),
'", "description": "This is a collection of 10,000 unique images. All the metadata and images are generated and stored 100% on-chain. No IPFS, no API.", "image": "data:image/svg+xml;base64,',
Library.encode(
bytes(hashToSVG(tokenHash))
),
'","attributes":',
hashToMetadata(tokenHash),
"}"
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToHash(uint256 _tokenId)
public
view
returns (string memory)
{
string memory tokenHash = tokenIdToHash[_tokenId];
//If this is a burned token, override the previous hash
if (ownerOf(_tokenId) == 0x000000000000000000000000000000000000dEaD) {
tokenHash = string(
abi.encodePacked(
"1",
Library.substring(tokenHash, 1, 9)
)
);
}
return tokenHash;
}
/**
* @dev Returns the wallet of a given wallet. Mainly for ease for frontend devs.
* @param _wallet The wallet to get the tokens of.
*/
function walletOfOwner(address _wallet)
public
view
returns (uint256[] memory)
{
uint256 tokenCount = balanceOf(_wallet);
uint256[] memory tokensId = new uint256[](tokenCount);
for (uint256 i; i < tokenCount; i++) {
tokensId[i] = tokenOfOwnerByIndex(_wallet, i);
}
return tokensId;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Clears the traits.
*/
function clearTraits() public onlyOwner {
for (uint256 i = 0; i < 9; i++) {
delete traitTypes[i];
}
}
/**
* @dev Add a trait type
* @param _traitTypeIndex The trait type index
* @param traits Array of traits to add
*/
function addTraitType(uint256 _traitTypeIndex, Trait[] memory traits)
public
onlyOwner
{
for (uint256 i = 0; i < traits.length; i++) {
traitTypes[_traitTypeIndex].push(
Trait(
traits[i].traitName,
traits[i].traitType,
traits[i].pixels,
traits[i].pixelCount
)
);
}
return;
}
/**
* @dev Sets the ERC20 token address
* @param _tokenAddress The token address
*/
function setTokenAddress(address _tokenAddress) public onlyOwner {
tokenAddress = _tokenAddress;
}
/**
* @dev Transfers ownership
* @param _newOwner The new owner
*/
function transferOwnership(address _newOwner) public onlyOwner {
_owner = _newOwner;
}
/**
* @dev Withdraw ETH to owner
*/
function withdraw() public onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
/**
* @dev Modifier to only allow owner to call functions
*/
modifier onlyOwner() {
require(_owner == msg.sender);
_;
}
} | mintInternal | function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
| /**
* @dev Mint internal, this is to avoid code duplication.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | None | ipfs://95df3398ec2a2913850d0e25d77bea187e5bc19916b0df9ae930719f2d8b641f | {
"func_code_index": [
5798,
6211
]
} | 4,395 |
||
NfToken | contracts/NfToken.sol | 0x3146dd9c200421a9c7d7b67bd1b75ba3e2c15310 | Solidity | NfToken | contract NfToken is ERC721Enumerable {
using SafeMath for uint256;
using Library for uint8;
struct Trait {
string traitName;
string traitType;
string pixels;
uint256 pixelCount;
}
//Mappings
mapping(uint256 => Trait[]) public traitTypes;
mapping(string => bool) hashToMinted;
mapping(uint256 => string) internal tokenIdToHash;
//uint256s
uint256 MAX_SUPPLY = 10000;
uint256 MINTS_PER_TIER = 2000;
uint256 SEED_NONCE = 0;
uint256 MINT_START = 1633964400;
uint256 MINT_DELAY = 43200;
uint256 START_PRICE = 30000000000000000;
uint256 PRICE_DIFF = 5000000000000000;
//string arrays
string[] LETTERS = [
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z"
];
//uint arrays
uint16[][8] TIERS;
//address
address tokenAddress;
address _owner;
constructor() ERC721("Moose", "MOOSE") {
_owner = msg.sender;
//Declare all the rarity tiers
//Hat
TIERS[0] = [4700, 3000, 1000, 1000, 200, 50, 50];
//Antlers
TIERS[1] = [250, 500, 2500, 2250, 2250, 2250];
//Neck
TIERS[2] = [4000, 2500, 1500, 1500, 500];
//Eyes
TIERS[3] = [50, 100, 150, 200, 500, 500, 1000, 1500, 3000, 3000];
//Earrings
TIERS[4] = [7000, 2000, 500, 200, 200, 50, 50];
//Mouth
TIERS[5] = [1428, 1428, 1428, 1429, 1429, 1429, 1429];
//Character
TIERS[6] = [1950, 1950, 1950, 1950, 1950, 200, 50];
//Accessory
TIERS[7] = [9700, 200, 50, 50];
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/
function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
/**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/
function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
/**
* @dev Returns the current cost of minting.
*/
function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
/**
* @dev Returns the current ETH price to mint
*/
function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
/**
* @dev Mint internal, this is to avoid code duplication.
*/
function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
/**
* @dev Mints new tokens.
*/
function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
/**
* @dev Mint for token
*/
function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
/**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/
function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Helper function to reduce pixel size within contract
*/
function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
/**
* @dev Hash to SVG function
*/
function hashToSVG(string memory _hash)
public
view
returns (string memory)
{
string memory svgString;
bool[24][24] memory placedPixels;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
for (
uint16 j = 0;
j < traitTypes[i][thisTraitIndex].pixelCount;
j++
) {
string memory thisPixel = Library.substring(
traitTypes[i][thisTraitIndex].pixels,
j * 4,
j * 4 + 4
);
uint8 x = letterToNumber(
Library.substring(thisPixel, 0, 1)
);
uint8 y = letterToNumber(
Library.substring(thisPixel, 1, 2)
);
if (placedPixels[x][y]) continue;
svgString = string(
abi.encodePacked(
svgString,
"<rect class='c",
Library.substring(thisPixel, 2, 4),
"' x='",
x.toString(),
"' y='",
y.toString(),
"'/>"
)
);
placedPixels[x][y] = true;
}
}
svgString = string(
abi.encodePacked(
'<svg id="mouse-svg" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 24 24"> <rect class="bg" x="0" y="0" />',
svgString,
"<style>rect.bg{width:24px;height:24px;fill:#B6EAFF} rect{width:1px;height:1px;} #mouse-svg{shape-rendering: crispedges;} .c00{fill:#000000}.c01{fill:#B1ADAC}.c02{fill:#D7D7D7}.c03{fill:#FFA6A6}.c04{fill:#FFD4D5}.c05{fill:#B9AD95}.c06{fill:#E2D6BE}.c07{fill:#7F625A}.c08{fill:#A58F82}.c09{fill:#4B1E0B}.c10{fill:#6D2C10}.c11{fill:#D8D8D8}.c12{fill:#F5F5F5}.c13{fill:#433D4B}.c14{fill:#8D949C}.c15{fill:#05FF00}.c16{fill:#01C700}.c17{fill:#0B8F08}.c18{fill:#421C13}.c19{fill:#6B392A}.c20{fill:#A35E40}.c21{fill:#DCBD91}.c22{fill:#777777}.c23{fill:#848484}.c24{fill:#ABABAB}.c25{fill:#BABABA}.c26{fill:#C7C7C7}.c27{fill:#EAEAEA}.c28{fill:#0C76AA}.c29{fill:#0E97DB}.c30{fill:#10A4EC}.c31{fill:#13B0FF}.c32{fill:#2EB9FE}.c33{fill:#54CCFF}.c34{fill:#50C0F2}.c35{fill:#54CCFF}.c36{fill:#72DAFF}.c37{fill:#B6EAFF}.c38{fill:#FFFFFF}.c39{fill:#954546}.c40{fill:#0B87F7}.c41{fill:#FF2626}.c42{fill:#180F02}.c43{fill:#2B2319}.c44{fill:#FBDD4B}.c45{fill:#F5B923}.c46{fill:#CC8A18}.c47{fill:#3C2203}.c48{fill:#53320B}.c49{fill:#7B501D}.c50{fill:#FFE646}.c51{fill:#FFD627}.c52{fill:#F5B700}.c53{fill:#242424}.c54{fill:#4A4A4A}.c55{fill:#676767}.c56{fill:#F08306}.c57{fill:#FCA30E}.c58{fill:#FEBC0E}.c59{fill:#FBEC1C}.c60{fill:#14242F}.c61{fill:#B06837}.c62{fill:#8F4B0E}.c63{fill:#D88227}.c64{fill:#B06837}</style></svg>"
)
);
return svgString;
}
/**
* @dev Hash to metadata function
*/
function hashToMetadata(string memory _hash)
public
view
returns (string memory)
{
string memory metadataString;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
metadataString = string(
abi.encodePacked(
metadataString,
'{"trait_type":"',
traitTypes[i][thisTraitIndex].traitType,
'","value":"',
traitTypes[i][thisTraitIndex].traitName,
'"}'
)
);
if (i != 8)
metadataString = string(abi.encodePacked(metadataString, ","));
}
return string(abi.encodePacked("[", metadataString, "]"));
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory tokenHash = _tokenIdToHash(_tokenId);
return
string(
abi.encodePacked(
"data:application/json;base64,",
Library.encode(
bytes(
string(
abi.encodePacked(
'{"name": "NfToken #',
Library.toString(_tokenId),
'", "description": "This is a collection of 10,000 unique images. All the metadata and images are generated and stored 100% on-chain. No IPFS, no API.", "image": "data:image/svg+xml;base64,',
Library.encode(
bytes(hashToSVG(tokenHash))
),
'","attributes":',
hashToMetadata(tokenHash),
"}"
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToHash(uint256 _tokenId)
public
view
returns (string memory)
{
string memory tokenHash = tokenIdToHash[_tokenId];
//If this is a burned token, override the previous hash
if (ownerOf(_tokenId) == 0x000000000000000000000000000000000000dEaD) {
tokenHash = string(
abi.encodePacked(
"1",
Library.substring(tokenHash, 1, 9)
)
);
}
return tokenHash;
}
/**
* @dev Returns the wallet of a given wallet. Mainly for ease for frontend devs.
* @param _wallet The wallet to get the tokens of.
*/
function walletOfOwner(address _wallet)
public
view
returns (uint256[] memory)
{
uint256 tokenCount = balanceOf(_wallet);
uint256[] memory tokensId = new uint256[](tokenCount);
for (uint256 i; i < tokenCount; i++) {
tokensId[i] = tokenOfOwnerByIndex(_wallet, i);
}
return tokensId;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Clears the traits.
*/
function clearTraits() public onlyOwner {
for (uint256 i = 0; i < 9; i++) {
delete traitTypes[i];
}
}
/**
* @dev Add a trait type
* @param _traitTypeIndex The trait type index
* @param traits Array of traits to add
*/
function addTraitType(uint256 _traitTypeIndex, Trait[] memory traits)
public
onlyOwner
{
for (uint256 i = 0; i < traits.length; i++) {
traitTypes[_traitTypeIndex].push(
Trait(
traits[i].traitName,
traits[i].traitType,
traits[i].pixels,
traits[i].pixelCount
)
);
}
return;
}
/**
* @dev Sets the ERC20 token address
* @param _tokenAddress The token address
*/
function setTokenAddress(address _tokenAddress) public onlyOwner {
tokenAddress = _tokenAddress;
}
/**
* @dev Transfers ownership
* @param _newOwner The new owner
*/
function transferOwnership(address _newOwner) public onlyOwner {
_owner = _newOwner;
}
/**
* @dev Withdraw ETH to owner
*/
function withdraw() public onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
/**
* @dev Modifier to only allow owner to call functions
*/
modifier onlyOwner() {
require(_owner == msg.sender);
_;
}
} | mintNfToken | function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
| /**
* @dev Mints new tokens.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | None | ipfs://95df3398ec2a2913850d0e25d77bea187e5bc19916b0df9ae930719f2d8b641f | {
"func_code_index": [
6263,
6703
]
} | 4,396 |
||
NfToken | contracts/NfToken.sol | 0x3146dd9c200421a9c7d7b67bd1b75ba3e2c15310 | Solidity | NfToken | contract NfToken is ERC721Enumerable {
using SafeMath for uint256;
using Library for uint8;
struct Trait {
string traitName;
string traitType;
string pixels;
uint256 pixelCount;
}
//Mappings
mapping(uint256 => Trait[]) public traitTypes;
mapping(string => bool) hashToMinted;
mapping(uint256 => string) internal tokenIdToHash;
//uint256s
uint256 MAX_SUPPLY = 10000;
uint256 MINTS_PER_TIER = 2000;
uint256 SEED_NONCE = 0;
uint256 MINT_START = 1633964400;
uint256 MINT_DELAY = 43200;
uint256 START_PRICE = 30000000000000000;
uint256 PRICE_DIFF = 5000000000000000;
//string arrays
string[] LETTERS = [
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z"
];
//uint arrays
uint16[][8] TIERS;
//address
address tokenAddress;
address _owner;
constructor() ERC721("Moose", "MOOSE") {
_owner = msg.sender;
//Declare all the rarity tiers
//Hat
TIERS[0] = [4700, 3000, 1000, 1000, 200, 50, 50];
//Antlers
TIERS[1] = [250, 500, 2500, 2250, 2250, 2250];
//Neck
TIERS[2] = [4000, 2500, 1500, 1500, 500];
//Eyes
TIERS[3] = [50, 100, 150, 200, 500, 500, 1000, 1500, 3000, 3000];
//Earrings
TIERS[4] = [7000, 2000, 500, 200, 200, 50, 50];
//Mouth
TIERS[5] = [1428, 1428, 1428, 1429, 1429, 1429, 1429];
//Character
TIERS[6] = [1950, 1950, 1950, 1950, 1950, 200, 50];
//Accessory
TIERS[7] = [9700, 200, 50, 50];
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/
function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
/**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/
function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
/**
* @dev Returns the current cost of minting.
*/
function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
/**
* @dev Returns the current ETH price to mint
*/
function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
/**
* @dev Mint internal, this is to avoid code duplication.
*/
function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
/**
* @dev Mints new tokens.
*/
function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
/**
* @dev Mint for token
*/
function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
/**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/
function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Helper function to reduce pixel size within contract
*/
function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
/**
* @dev Hash to SVG function
*/
function hashToSVG(string memory _hash)
public
view
returns (string memory)
{
string memory svgString;
bool[24][24] memory placedPixels;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
for (
uint16 j = 0;
j < traitTypes[i][thisTraitIndex].pixelCount;
j++
) {
string memory thisPixel = Library.substring(
traitTypes[i][thisTraitIndex].pixels,
j * 4,
j * 4 + 4
);
uint8 x = letterToNumber(
Library.substring(thisPixel, 0, 1)
);
uint8 y = letterToNumber(
Library.substring(thisPixel, 1, 2)
);
if (placedPixels[x][y]) continue;
svgString = string(
abi.encodePacked(
svgString,
"<rect class='c",
Library.substring(thisPixel, 2, 4),
"' x='",
x.toString(),
"' y='",
y.toString(),
"'/>"
)
);
placedPixels[x][y] = true;
}
}
svgString = string(
abi.encodePacked(
'<svg id="mouse-svg" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 24 24"> <rect class="bg" x="0" y="0" />',
svgString,
"<style>rect.bg{width:24px;height:24px;fill:#B6EAFF} rect{width:1px;height:1px;} #mouse-svg{shape-rendering: crispedges;} .c00{fill:#000000}.c01{fill:#B1ADAC}.c02{fill:#D7D7D7}.c03{fill:#FFA6A6}.c04{fill:#FFD4D5}.c05{fill:#B9AD95}.c06{fill:#E2D6BE}.c07{fill:#7F625A}.c08{fill:#A58F82}.c09{fill:#4B1E0B}.c10{fill:#6D2C10}.c11{fill:#D8D8D8}.c12{fill:#F5F5F5}.c13{fill:#433D4B}.c14{fill:#8D949C}.c15{fill:#05FF00}.c16{fill:#01C700}.c17{fill:#0B8F08}.c18{fill:#421C13}.c19{fill:#6B392A}.c20{fill:#A35E40}.c21{fill:#DCBD91}.c22{fill:#777777}.c23{fill:#848484}.c24{fill:#ABABAB}.c25{fill:#BABABA}.c26{fill:#C7C7C7}.c27{fill:#EAEAEA}.c28{fill:#0C76AA}.c29{fill:#0E97DB}.c30{fill:#10A4EC}.c31{fill:#13B0FF}.c32{fill:#2EB9FE}.c33{fill:#54CCFF}.c34{fill:#50C0F2}.c35{fill:#54CCFF}.c36{fill:#72DAFF}.c37{fill:#B6EAFF}.c38{fill:#FFFFFF}.c39{fill:#954546}.c40{fill:#0B87F7}.c41{fill:#FF2626}.c42{fill:#180F02}.c43{fill:#2B2319}.c44{fill:#FBDD4B}.c45{fill:#F5B923}.c46{fill:#CC8A18}.c47{fill:#3C2203}.c48{fill:#53320B}.c49{fill:#7B501D}.c50{fill:#FFE646}.c51{fill:#FFD627}.c52{fill:#F5B700}.c53{fill:#242424}.c54{fill:#4A4A4A}.c55{fill:#676767}.c56{fill:#F08306}.c57{fill:#FCA30E}.c58{fill:#FEBC0E}.c59{fill:#FBEC1C}.c60{fill:#14242F}.c61{fill:#B06837}.c62{fill:#8F4B0E}.c63{fill:#D88227}.c64{fill:#B06837}</style></svg>"
)
);
return svgString;
}
/**
* @dev Hash to metadata function
*/
function hashToMetadata(string memory _hash)
public
view
returns (string memory)
{
string memory metadataString;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
metadataString = string(
abi.encodePacked(
metadataString,
'{"trait_type":"',
traitTypes[i][thisTraitIndex].traitType,
'","value":"',
traitTypes[i][thisTraitIndex].traitName,
'"}'
)
);
if (i != 8)
metadataString = string(abi.encodePacked(metadataString, ","));
}
return string(abi.encodePacked("[", metadataString, "]"));
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory tokenHash = _tokenIdToHash(_tokenId);
return
string(
abi.encodePacked(
"data:application/json;base64,",
Library.encode(
bytes(
string(
abi.encodePacked(
'{"name": "NfToken #',
Library.toString(_tokenId),
'", "description": "This is a collection of 10,000 unique images. All the metadata and images are generated and stored 100% on-chain. No IPFS, no API.", "image": "data:image/svg+xml;base64,',
Library.encode(
bytes(hashToSVG(tokenHash))
),
'","attributes":',
hashToMetadata(tokenHash),
"}"
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToHash(uint256 _tokenId)
public
view
returns (string memory)
{
string memory tokenHash = tokenIdToHash[_tokenId];
//If this is a burned token, override the previous hash
if (ownerOf(_tokenId) == 0x000000000000000000000000000000000000dEaD) {
tokenHash = string(
abi.encodePacked(
"1",
Library.substring(tokenHash, 1, 9)
)
);
}
return tokenHash;
}
/**
* @dev Returns the wallet of a given wallet. Mainly for ease for frontend devs.
* @param _wallet The wallet to get the tokens of.
*/
function walletOfOwner(address _wallet)
public
view
returns (uint256[] memory)
{
uint256 tokenCount = balanceOf(_wallet);
uint256[] memory tokensId = new uint256[](tokenCount);
for (uint256 i; i < tokenCount; i++) {
tokensId[i] = tokenOfOwnerByIndex(_wallet, i);
}
return tokensId;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Clears the traits.
*/
function clearTraits() public onlyOwner {
for (uint256 i = 0; i < 9; i++) {
delete traitTypes[i];
}
}
/**
* @dev Add a trait type
* @param _traitTypeIndex The trait type index
* @param traits Array of traits to add
*/
function addTraitType(uint256 _traitTypeIndex, Trait[] memory traits)
public
onlyOwner
{
for (uint256 i = 0; i < traits.length; i++) {
traitTypes[_traitTypeIndex].push(
Trait(
traits[i].traitName,
traits[i].traitType,
traits[i].pixels,
traits[i].pixelCount
)
);
}
return;
}
/**
* @dev Sets the ERC20 token address
* @param _tokenAddress The token address
*/
function setTokenAddress(address _tokenAddress) public onlyOwner {
tokenAddress = _tokenAddress;
}
/**
* @dev Transfers ownership
* @param _newOwner The new owner
*/
function transferOwnership(address _newOwner) public onlyOwner {
_owner = _newOwner;
}
/**
* @dev Withdraw ETH to owner
*/
function withdraw() public onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
/**
* @dev Modifier to only allow owner to call functions
*/
modifier onlyOwner() {
require(_owner == msg.sender);
_;
}
} | mintWithToken | function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
| /**
* @dev Mint for token
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | None | ipfs://95df3398ec2a2913850d0e25d77bea187e5bc19916b0df9ae930719f2d8b641f | {
"func_code_index": [
6750,
6939
]
} | 4,397 |
||
NfToken | contracts/NfToken.sol | 0x3146dd9c200421a9c7d7b67bd1b75ba3e2c15310 | Solidity | NfToken | contract NfToken is ERC721Enumerable {
using SafeMath for uint256;
using Library for uint8;
struct Trait {
string traitName;
string traitType;
string pixels;
uint256 pixelCount;
}
//Mappings
mapping(uint256 => Trait[]) public traitTypes;
mapping(string => bool) hashToMinted;
mapping(uint256 => string) internal tokenIdToHash;
//uint256s
uint256 MAX_SUPPLY = 10000;
uint256 MINTS_PER_TIER = 2000;
uint256 SEED_NONCE = 0;
uint256 MINT_START = 1633964400;
uint256 MINT_DELAY = 43200;
uint256 START_PRICE = 30000000000000000;
uint256 PRICE_DIFF = 5000000000000000;
//string arrays
string[] LETTERS = [
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z"
];
//uint arrays
uint16[][8] TIERS;
//address
address tokenAddress;
address _owner;
constructor() ERC721("Moose", "MOOSE") {
_owner = msg.sender;
//Declare all the rarity tiers
//Hat
TIERS[0] = [4700, 3000, 1000, 1000, 200, 50, 50];
//Antlers
TIERS[1] = [250, 500, 2500, 2250, 2250, 2250];
//Neck
TIERS[2] = [4000, 2500, 1500, 1500, 500];
//Eyes
TIERS[3] = [50, 100, 150, 200, 500, 500, 1000, 1500, 3000, 3000];
//Earrings
TIERS[4] = [7000, 2000, 500, 200, 200, 50, 50];
//Mouth
TIERS[5] = [1428, 1428, 1428, 1429, 1429, 1429, 1429];
//Character
TIERS[6] = [1950, 1950, 1950, 1950, 1950, 200, 50];
//Accessory
TIERS[7] = [9700, 200, 50, 50];
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/
function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
/**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/
function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
/**
* @dev Returns the current cost of minting.
*/
function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
/**
* @dev Returns the current ETH price to mint
*/
function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
/**
* @dev Mint internal, this is to avoid code duplication.
*/
function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
/**
* @dev Mints new tokens.
*/
function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
/**
* @dev Mint for token
*/
function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
/**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/
function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Helper function to reduce pixel size within contract
*/
function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
/**
* @dev Hash to SVG function
*/
function hashToSVG(string memory _hash)
public
view
returns (string memory)
{
string memory svgString;
bool[24][24] memory placedPixels;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
for (
uint16 j = 0;
j < traitTypes[i][thisTraitIndex].pixelCount;
j++
) {
string memory thisPixel = Library.substring(
traitTypes[i][thisTraitIndex].pixels,
j * 4,
j * 4 + 4
);
uint8 x = letterToNumber(
Library.substring(thisPixel, 0, 1)
);
uint8 y = letterToNumber(
Library.substring(thisPixel, 1, 2)
);
if (placedPixels[x][y]) continue;
svgString = string(
abi.encodePacked(
svgString,
"<rect class='c",
Library.substring(thisPixel, 2, 4),
"' x='",
x.toString(),
"' y='",
y.toString(),
"'/>"
)
);
placedPixels[x][y] = true;
}
}
svgString = string(
abi.encodePacked(
'<svg id="mouse-svg" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 24 24"> <rect class="bg" x="0" y="0" />',
svgString,
"<style>rect.bg{width:24px;height:24px;fill:#B6EAFF} rect{width:1px;height:1px;} #mouse-svg{shape-rendering: crispedges;} .c00{fill:#000000}.c01{fill:#B1ADAC}.c02{fill:#D7D7D7}.c03{fill:#FFA6A6}.c04{fill:#FFD4D5}.c05{fill:#B9AD95}.c06{fill:#E2D6BE}.c07{fill:#7F625A}.c08{fill:#A58F82}.c09{fill:#4B1E0B}.c10{fill:#6D2C10}.c11{fill:#D8D8D8}.c12{fill:#F5F5F5}.c13{fill:#433D4B}.c14{fill:#8D949C}.c15{fill:#05FF00}.c16{fill:#01C700}.c17{fill:#0B8F08}.c18{fill:#421C13}.c19{fill:#6B392A}.c20{fill:#A35E40}.c21{fill:#DCBD91}.c22{fill:#777777}.c23{fill:#848484}.c24{fill:#ABABAB}.c25{fill:#BABABA}.c26{fill:#C7C7C7}.c27{fill:#EAEAEA}.c28{fill:#0C76AA}.c29{fill:#0E97DB}.c30{fill:#10A4EC}.c31{fill:#13B0FF}.c32{fill:#2EB9FE}.c33{fill:#54CCFF}.c34{fill:#50C0F2}.c35{fill:#54CCFF}.c36{fill:#72DAFF}.c37{fill:#B6EAFF}.c38{fill:#FFFFFF}.c39{fill:#954546}.c40{fill:#0B87F7}.c41{fill:#FF2626}.c42{fill:#180F02}.c43{fill:#2B2319}.c44{fill:#FBDD4B}.c45{fill:#F5B923}.c46{fill:#CC8A18}.c47{fill:#3C2203}.c48{fill:#53320B}.c49{fill:#7B501D}.c50{fill:#FFE646}.c51{fill:#FFD627}.c52{fill:#F5B700}.c53{fill:#242424}.c54{fill:#4A4A4A}.c55{fill:#676767}.c56{fill:#F08306}.c57{fill:#FCA30E}.c58{fill:#FEBC0E}.c59{fill:#FBEC1C}.c60{fill:#14242F}.c61{fill:#B06837}.c62{fill:#8F4B0E}.c63{fill:#D88227}.c64{fill:#B06837}</style></svg>"
)
);
return svgString;
}
/**
* @dev Hash to metadata function
*/
function hashToMetadata(string memory _hash)
public
view
returns (string memory)
{
string memory metadataString;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
metadataString = string(
abi.encodePacked(
metadataString,
'{"trait_type":"',
traitTypes[i][thisTraitIndex].traitType,
'","value":"',
traitTypes[i][thisTraitIndex].traitName,
'"}'
)
);
if (i != 8)
metadataString = string(abi.encodePacked(metadataString, ","));
}
return string(abi.encodePacked("[", metadataString, "]"));
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory tokenHash = _tokenIdToHash(_tokenId);
return
string(
abi.encodePacked(
"data:application/json;base64,",
Library.encode(
bytes(
string(
abi.encodePacked(
'{"name": "NfToken #',
Library.toString(_tokenId),
'", "description": "This is a collection of 10,000 unique images. All the metadata and images are generated and stored 100% on-chain. No IPFS, no API.", "image": "data:image/svg+xml;base64,',
Library.encode(
bytes(hashToSVG(tokenHash))
),
'","attributes":',
hashToMetadata(tokenHash),
"}"
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToHash(uint256 _tokenId)
public
view
returns (string memory)
{
string memory tokenHash = tokenIdToHash[_tokenId];
//If this is a burned token, override the previous hash
if (ownerOf(_tokenId) == 0x000000000000000000000000000000000000dEaD) {
tokenHash = string(
abi.encodePacked(
"1",
Library.substring(tokenHash, 1, 9)
)
);
}
return tokenHash;
}
/**
* @dev Returns the wallet of a given wallet. Mainly for ease for frontend devs.
* @param _wallet The wallet to get the tokens of.
*/
function walletOfOwner(address _wallet)
public
view
returns (uint256[] memory)
{
uint256 tokenCount = balanceOf(_wallet);
uint256[] memory tokensId = new uint256[](tokenCount);
for (uint256 i; i < tokenCount; i++) {
tokensId[i] = tokenOfOwnerByIndex(_wallet, i);
}
return tokensId;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Clears the traits.
*/
function clearTraits() public onlyOwner {
for (uint256 i = 0; i < 9; i++) {
delete traitTypes[i];
}
}
/**
* @dev Add a trait type
* @param _traitTypeIndex The trait type index
* @param traits Array of traits to add
*/
function addTraitType(uint256 _traitTypeIndex, Trait[] memory traits)
public
onlyOwner
{
for (uint256 i = 0; i < traits.length; i++) {
traitTypes[_traitTypeIndex].push(
Trait(
traits[i].traitName,
traits[i].traitType,
traits[i].pixels,
traits[i].pixelCount
)
);
}
return;
}
/**
* @dev Sets the ERC20 token address
* @param _tokenAddress The token address
*/
function setTokenAddress(address _tokenAddress) public onlyOwner {
tokenAddress = _tokenAddress;
}
/**
* @dev Transfers ownership
* @param _newOwner The new owner
*/
function transferOwnership(address _newOwner) public onlyOwner {
_owner = _newOwner;
}
/**
* @dev Withdraw ETH to owner
*/
function withdraw() public onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
/**
* @dev Modifier to only allow owner to call functions
*/
modifier onlyOwner() {
require(_owner == msg.sender);
_;
}
} | burnForMint | function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
| /**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | None | ipfs://95df3398ec2a2913850d0e25d77bea187e5bc19916b0df9ae930719f2d8b641f | {
"func_code_index": [
7037,
7334
]
} | 4,398 |
||
NfToken | contracts/NfToken.sol | 0x3146dd9c200421a9c7d7b67bd1b75ba3e2c15310 | Solidity | NfToken | contract NfToken is ERC721Enumerable {
using SafeMath for uint256;
using Library for uint8;
struct Trait {
string traitName;
string traitType;
string pixels;
uint256 pixelCount;
}
//Mappings
mapping(uint256 => Trait[]) public traitTypes;
mapping(string => bool) hashToMinted;
mapping(uint256 => string) internal tokenIdToHash;
//uint256s
uint256 MAX_SUPPLY = 10000;
uint256 MINTS_PER_TIER = 2000;
uint256 SEED_NONCE = 0;
uint256 MINT_START = 1633964400;
uint256 MINT_DELAY = 43200;
uint256 START_PRICE = 30000000000000000;
uint256 PRICE_DIFF = 5000000000000000;
//string arrays
string[] LETTERS = [
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z"
];
//uint arrays
uint16[][8] TIERS;
//address
address tokenAddress;
address _owner;
constructor() ERC721("Moose", "MOOSE") {
_owner = msg.sender;
//Declare all the rarity tiers
//Hat
TIERS[0] = [4700, 3000, 1000, 1000, 200, 50, 50];
//Antlers
TIERS[1] = [250, 500, 2500, 2250, 2250, 2250];
//Neck
TIERS[2] = [4000, 2500, 1500, 1500, 500];
//Eyes
TIERS[3] = [50, 100, 150, 200, 500, 500, 1000, 1500, 3000, 3000];
//Earrings
TIERS[4] = [7000, 2000, 500, 200, 200, 50, 50];
//Mouth
TIERS[5] = [1428, 1428, 1428, 1429, 1429, 1429, 1429];
//Character
TIERS[6] = [1950, 1950, 1950, 1950, 1950, 200, 50];
//Accessory
TIERS[7] = [9700, 200, 50, 50];
}
/*
__ __ _ _ _ ___ _ _
| \/ (_)_ _| |_(_)_ _ __ _ | __| _ _ _ __| |_(_)___ _ _ ___
| |\/| | | ' \ _| | ' \/ _` | | _| || | ' \/ _| _| / _ \ ' \(_-<
|_| |_|_|_||_\__|_|_||_\__, | |_| \_,_|_||_\__|\__|_\___/_||_/__/
|___/
*/
/**
* @dev Converts a digit from 0 - 10000 into its corresponding rarity based on the given rarity tier.
* @param _randinput The input from 0 - 10000 to use for rarity gen.
* @param _rarityTier The tier to use.
*/
function rarityGen(uint256 _randinput, uint8 _rarityTier)
internal
view
returns (string memory)
{
uint16 currentLowerBound = 0;
for (uint8 i = 0; i < TIERS[_rarityTier].length; i++) {
uint16 thisPercentage = TIERS[_rarityTier][i];
if (
_randinput >= currentLowerBound &&
_randinput < currentLowerBound + thisPercentage
) return i.toString();
currentLowerBound = currentLowerBound + thisPercentage;
}
revert();
}
/**
* @dev Generates a 9 digit hash from a tokenId, address, and random number.
* @param _t The token id to be used within the hash.
* @param _a The address to be used within the hash.
* @param _c The custom nonce to be used within the hash.
*/
function hash(
uint256 _t,
address _a,
uint256 _c
) internal returns (string memory) {
require(_c < 10);
// This will generate a 9 character string.
//The last 8 digits are random, the first is 0, due to the mouse not being burned.
string memory currentHash = "0";
for (uint8 i = 0; i < 8; i++) {
SEED_NONCE++;
uint16 _randinput = uint16(
uint256(
keccak256(
abi.encodePacked(
block.timestamp,
block.difficulty,
_t,
_a,
_c,
SEED_NONCE
)
)
) % 10000
);
currentHash = string(
abi.encodePacked(currentHash, rarityGen(_randinput, i))
);
}
if (hashToMinted[currentHash]) return hash(_t, _a, _c + 1);
return currentHash;
}
/**
* @dev Returns the current cost of minting.
*/
function currentTokenCost() public view returns (uint256) {
uint256 _totalSupply = totalSupply();
if (_totalSupply <= 2000) return 1000000000000000000;
if (_totalSupply > 2000 && _totalSupply <= 4000)
return 1000000000000000000;
if (_totalSupply > 4000 && _totalSupply <= 6000)
return 2000000000000000000;
if (_totalSupply > 6000 && _totalSupply <= 8000)
return 3000000000000000000;
if (_totalSupply > 8000 && _totalSupply <= 10000)
return 4000000000000000000;
revert();
}
/**
* @dev Returns the current ETH price to mint
*/
function currentPrice() public view returns (uint256) {
if(block.timestamp < MINT_START) {
return START_PRICE;
}
uint256 _mintTiersComplete = (block.timestamp - MINT_START).div(MINT_DELAY);
if(PRICE_DIFF * _mintTiersComplete >= START_PRICE) {
return 0;
} else {
return START_PRICE - (PRICE_DIFF * _mintTiersComplete);
}
}
/**
* @dev Mint internal, this is to avoid code duplication.
*/
function mintInternal() internal {
uint256 _totalSupply = totalSupply();
require(_totalSupply < MAX_SUPPLY);
require(!Library.isContract(msg.sender));
uint256 thisTokenId = _totalSupply;
tokenIdToHash[thisTokenId] = hash(thisTokenId, msg.sender, 0);
hashToMinted[tokenIdToHash[thisTokenId]] = true;
_mint(msg.sender, thisTokenId);
}
/**
* @dev Mints new tokens.
*/
function mintNfToken(uint256 _times) public payable {
uint256 _totalSupply = totalSupply();
uint256 _price = currentPrice();
require((_times > 0 && _times <= 5));
require(msg.value >= _times * _price);
require(_totalSupply < MINTS_PER_TIER);
require(block.timestamp >= MINT_START);
for(uint256 i=0; i< _times; i++){
mintInternal();
}
}
/**
* @dev Mint for token
*/
function mintWithToken() public {
//Burn this much token
IToken(tokenAddress).burnFrom(msg.sender, currentTokenCost());
return mintInternal();
}
/**
* @dev Burns and mints new.
* @param _tokenId The token to burn.
*/
function burnForMint(uint256 _tokenId) public {
require(ownerOf(_tokenId) == msg.sender);
//Burn token
_transfer(
msg.sender,
0x000000000000000000000000000000000000dEaD,
_tokenId
);
mintInternal();
}
/*
____ ___ ____ ___ _____ __ __ ____ __ ______ ____ ___ ____ _____
| \ / _] / || \ | || | || \ / ] || |/ \ | \ / ___/
| D ) / [_ | o || \ | __|| | || _ | / /| | | || || _ ( \_
| / | _]| || D | | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| \ | [_ | _ || | | _] | : || | / \_ | | | || || | |/ \ |
| . \| || | || | | | | || | \ | | | | || || | |\ |
|__|\_||_____||__|__||_____| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Helper function to reduce pixel size within contract
*/
function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
/**
* @dev Hash to SVG function
*/
function hashToSVG(string memory _hash)
public
view
returns (string memory)
{
string memory svgString;
bool[24][24] memory placedPixels;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
for (
uint16 j = 0;
j < traitTypes[i][thisTraitIndex].pixelCount;
j++
) {
string memory thisPixel = Library.substring(
traitTypes[i][thisTraitIndex].pixels,
j * 4,
j * 4 + 4
);
uint8 x = letterToNumber(
Library.substring(thisPixel, 0, 1)
);
uint8 y = letterToNumber(
Library.substring(thisPixel, 1, 2)
);
if (placedPixels[x][y]) continue;
svgString = string(
abi.encodePacked(
svgString,
"<rect class='c",
Library.substring(thisPixel, 2, 4),
"' x='",
x.toString(),
"' y='",
y.toString(),
"'/>"
)
);
placedPixels[x][y] = true;
}
}
svgString = string(
abi.encodePacked(
'<svg id="mouse-svg" xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="xMinYMin meet" viewBox="0 0 24 24"> <rect class="bg" x="0" y="0" />',
svgString,
"<style>rect.bg{width:24px;height:24px;fill:#B6EAFF} rect{width:1px;height:1px;} #mouse-svg{shape-rendering: crispedges;} .c00{fill:#000000}.c01{fill:#B1ADAC}.c02{fill:#D7D7D7}.c03{fill:#FFA6A6}.c04{fill:#FFD4D5}.c05{fill:#B9AD95}.c06{fill:#E2D6BE}.c07{fill:#7F625A}.c08{fill:#A58F82}.c09{fill:#4B1E0B}.c10{fill:#6D2C10}.c11{fill:#D8D8D8}.c12{fill:#F5F5F5}.c13{fill:#433D4B}.c14{fill:#8D949C}.c15{fill:#05FF00}.c16{fill:#01C700}.c17{fill:#0B8F08}.c18{fill:#421C13}.c19{fill:#6B392A}.c20{fill:#A35E40}.c21{fill:#DCBD91}.c22{fill:#777777}.c23{fill:#848484}.c24{fill:#ABABAB}.c25{fill:#BABABA}.c26{fill:#C7C7C7}.c27{fill:#EAEAEA}.c28{fill:#0C76AA}.c29{fill:#0E97DB}.c30{fill:#10A4EC}.c31{fill:#13B0FF}.c32{fill:#2EB9FE}.c33{fill:#54CCFF}.c34{fill:#50C0F2}.c35{fill:#54CCFF}.c36{fill:#72DAFF}.c37{fill:#B6EAFF}.c38{fill:#FFFFFF}.c39{fill:#954546}.c40{fill:#0B87F7}.c41{fill:#FF2626}.c42{fill:#180F02}.c43{fill:#2B2319}.c44{fill:#FBDD4B}.c45{fill:#F5B923}.c46{fill:#CC8A18}.c47{fill:#3C2203}.c48{fill:#53320B}.c49{fill:#7B501D}.c50{fill:#FFE646}.c51{fill:#FFD627}.c52{fill:#F5B700}.c53{fill:#242424}.c54{fill:#4A4A4A}.c55{fill:#676767}.c56{fill:#F08306}.c57{fill:#FCA30E}.c58{fill:#FEBC0E}.c59{fill:#FBEC1C}.c60{fill:#14242F}.c61{fill:#B06837}.c62{fill:#8F4B0E}.c63{fill:#D88227}.c64{fill:#B06837}</style></svg>"
)
);
return svgString;
}
/**
* @dev Hash to metadata function
*/
function hashToMetadata(string memory _hash)
public
view
returns (string memory)
{
string memory metadataString;
for (uint8 i = 0; i < 9; i++) {
uint8 thisTraitIndex = Library.parseInt(
Library.substring(_hash, i, i + 1)
);
metadataString = string(
abi.encodePacked(
metadataString,
'{"trait_type":"',
traitTypes[i][thisTraitIndex].traitType,
'","value":"',
traitTypes[i][thisTraitIndex].traitName,
'"}'
)
);
if (i != 8)
metadataString = string(abi.encodePacked(metadataString, ","));
}
return string(abi.encodePacked("[", metadataString, "]"));
}
/**
* @dev Returns the SVG and metadata for a token Id
* @param _tokenId The tokenId to return the SVG and metadata for.
*/
function tokenURI(uint256 _tokenId)
public
view
override
returns (string memory)
{
require(_exists(_tokenId));
string memory tokenHash = _tokenIdToHash(_tokenId);
return
string(
abi.encodePacked(
"data:application/json;base64,",
Library.encode(
bytes(
string(
abi.encodePacked(
'{"name": "NfToken #',
Library.toString(_tokenId),
'", "description": "This is a collection of 10,000 unique images. All the metadata and images are generated and stored 100% on-chain. No IPFS, no API.", "image": "data:image/svg+xml;base64,',
Library.encode(
bytes(hashToSVG(tokenHash))
),
'","attributes":',
hashToMetadata(tokenHash),
"}"
)
)
)
)
)
);
}
/**
* @dev Returns a hash for a given tokenId
* @param _tokenId The tokenId to return the hash for.
*/
function _tokenIdToHash(uint256 _tokenId)
public
view
returns (string memory)
{
string memory tokenHash = tokenIdToHash[_tokenId];
//If this is a burned token, override the previous hash
if (ownerOf(_tokenId) == 0x000000000000000000000000000000000000dEaD) {
tokenHash = string(
abi.encodePacked(
"1",
Library.substring(tokenHash, 1, 9)
)
);
}
return tokenHash;
}
/**
* @dev Returns the wallet of a given wallet. Mainly for ease for frontend devs.
* @param _wallet The wallet to get the tokens of.
*/
function walletOfOwner(address _wallet)
public
view
returns (uint256[] memory)
{
uint256 tokenCount = balanceOf(_wallet);
uint256[] memory tokensId = new uint256[](tokenCount);
for (uint256 i; i < tokenCount; i++) {
tokensId[i] = tokenOfOwnerByIndex(_wallet, i);
}
return tokensId;
}
/*
___ __ __ ____ ___ ____ _____ __ __ ____ __ ______ ____ ___ ____ _____
/ \ | |__| || \ / _]| \ | || | || \ / ] || |/ \ | \ / ___/
| || | | || _ | / [_ | D ) | __|| | || _ | / /| | | || || _ ( \_
| O || | | || | || _]| / | |_ | | || | |/ / |_| |_| | || O || | |\__ |
| || ` ' || | || [_ | \ | _] | : || | / \_ | | | || || | |/ \ |
| | \ / | | || || . \ | | | || | \ | | | | || || | |\ |
\___/ \_/\_/ |__|__||_____||__|\_| |__| \__,_||__|__|\____| |__| |____|\___/ |__|__| \___|
*/
/**
* @dev Clears the traits.
*/
function clearTraits() public onlyOwner {
for (uint256 i = 0; i < 9; i++) {
delete traitTypes[i];
}
}
/**
* @dev Add a trait type
* @param _traitTypeIndex The trait type index
* @param traits Array of traits to add
*/
function addTraitType(uint256 _traitTypeIndex, Trait[] memory traits)
public
onlyOwner
{
for (uint256 i = 0; i < traits.length; i++) {
traitTypes[_traitTypeIndex].push(
Trait(
traits[i].traitName,
traits[i].traitType,
traits[i].pixels,
traits[i].pixelCount
)
);
}
return;
}
/**
* @dev Sets the ERC20 token address
* @param _tokenAddress The token address
*/
function setTokenAddress(address _tokenAddress) public onlyOwner {
tokenAddress = _tokenAddress;
}
/**
* @dev Transfers ownership
* @param _newOwner The new owner
*/
function transferOwnership(address _newOwner) public onlyOwner {
_owner = _newOwner;
}
/**
* @dev Withdraw ETH to owner
*/
function withdraw() public onlyOwner {
uint256 balance = address(this).balance;
payable(msg.sender).transfer(balance);
}
/**
* @dev Modifier to only allow owner to call functions
*/
modifier onlyOwner() {
require(_owner == msg.sender);
_;
}
} | letterToNumber | function letterToNumber(string memory _inputLetter)
internal
view
returns (uint8)
{
for (uint8 i = 0; i < LETTERS.length; i++) {
if (
keccak256(abi.encodePacked((LETTERS[i]))) ==
keccak256(abi.encodePacked((_inputLetter)))
) return (i);
}
revert();
}
| /**
* @dev Helper function to reduce pixel size within contract
*/ | NatSpecMultiLine | v0.8.4+commit.c7e474f2 | None | ipfs://95df3398ec2a2913850d0e25d77bea187e5bc19916b0df9ae930719f2d8b641f | {
"func_code_index": [
8179,
8558
]
} | 4,399 |
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