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Bridge | contracts/Bridge.sol | 0x27ef066f3a3758ff8ee0cf5b86c7dbc0348f77e2 | Solidity | Bridge | contract Bridge is IBridgeV1, Ownable {
using SafeMath for uint256;
// token for the bridge
address public token;
// List of TXs from the other chain that were processed
mapping (bytes32 => bool) txHashes;
// Current Fee Rate
uint public fee = 5 * 1e18;
constructor(address _tokenAddress) {
token = _tokenAddress;
}
/**
* @dev Initiates a token transfer from the given ledger to another Ethereum-compliant ledger.
* @param amount The amount of tokens getting locked and swapped from the ledger
* @param swapInAddress The address (on another ledger) to which the tokens are swapped
*/
function SwapOut(uint256 amount, address swapInAddress)
external
override
returns (bool) {
require(swapInAddress != address(0), "Bridge: swapInAddress");
require(amount > 0, "Bridge: amount");
require(
IERC20(token).transferFrom(msg.sender, address(this), amount),
"Bridge: transfer"
);
emit LogSwapOut(msg.sender, swapInAddress, amount);
return true;
}
/**
* @dev Initiates a token transfer from the given ledger to another Ethereum-compliant ledger.
* @param txHash Transaction hash on the ledger where the swap has beed initiated.
* @param to The address to which the tokens are swapped
* @param amount The amount of tokens released
*/
function SwapIn(
bytes32 txHash,
address to,
uint256 amount
)
external
override
onlyOwner
returns (bool) {
require (txHash != bytes32(0), "Bridge: invalid tx");
require (to != address(0), "Bridge: invalid addr");
require (txHashes[txHash] == false, "Bridge: dup tx");
txHashes[txHash] = true;
require(
IERC20(token).transfer(to, amount.sub(fee, "Bridge: invalid amount")), // automatically checks for amount > fee otherwise throw safemath
"Bridge: transfer"
);
emit LogSwapIn(txHash, to, amount.sub(fee), fee);
return true;
}
/**
* @dev Initiates a withdrawal transfer from the bridge contract to an address. Only call-able by the owner
* @param to The address to which the tokens are swapped
* @param amount The amount of tokens released
*/
function withdraw(address to, uint256 amount) external onlyOwner {
IERC20(token).transfer(to, amount);
}
/**
* @dev Update the fee on the current chain. Only call-able by the owner
* @param newFee uint - the new fee that applies to the current side bridge
*/
function updateFee(uint newFee) external onlyOwner {
uint oldFee = fee;
fee = newFee;
emit LogFeeUpdate(oldFee, newFee);
}
/**
* @dev Add Liquidity to the Bridge contract
* @param amount uint256 - the amount added to the liquidity in the bridge
*/
function addLiquidity(uint256 amount) external {
IERC20(token).transferFrom(msg.sender, address(this), amount);
emit LogLiquidityAdded(msg.sender, amount);
}
} | addLiquidity | function addLiquidity(uint256 amount) external {
IERC20(token).transferFrom(msg.sender, address(this), amount);
emit LogLiquidityAdded(msg.sender, amount);
}
| /**
* @dev Add Liquidity to the Bridge contract
* @param amount uint256 - the amount added to the liquidity in the bridge
*/ | NatSpecMultiLine | v0.8.0+commit.c7dfd78e | {
"func_code_index": [
2928,
3109
]
} | 58,761 |
||||
MineBee | contracts\mine.sol | 0x8d8129963291740dddd917ab01af18c7aed4ba58 | Solidity | MineBee | contract MineBee is ERC20 {
string public constant name = "MineBee"; // solium-disable-line uppercase
string public constant symbol = "MB"; // solium-disable-line uppercase
uint8 public constant decimals = 18; // solium-disable-line uppercase
uint256 public constant initialSupply = 5000000000 * (10 ** uint256(decimals));
constructor() public {
super._mint(msg.sender, initialSupply);
owner = msg.sender;
}
//ownership
address public owner;
event OwnershipRenounced(address indexed previousOwner);
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
modifier onlyOwner() {
require(msg.sender == owner, "Not owner");
_;
}
/**
* @dev Allows the current owner to relinquish control of the contract.
* @notice Renouncing to ownership will leave the contract without an owner.
* It will not be possible to call the functions with the `onlyOwner`
* modifier anymore.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(owner);
owner = address(0);
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0), "Already owner");
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
//pausable
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*/
modifier whenNotPaused() {
require(!paused, "Paused by owner");
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*/
modifier whenPaused() {
require(paused, "Not paused now");
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
//freezable
event Frozen(address target);
event Unfrozen(address target);
mapping(address => bool) internal freezes;
modifier whenNotFrozen() {
require(!freezes[msg.sender], "Sender account is locked.");
_;
}
function freeze(address _target) public onlyOwner {
freezes[_target] = true;
emit Frozen(_target);
}
function unfreeze(address _target) public onlyOwner {
freezes[_target] = false;
emit Unfrozen(_target);
}
function isFrozen(address _target) public view returns (bool) {
return freezes[_target];
}
function transfer(
address _to,
uint256 _value
)
public
whenNotFrozen
whenNotPaused
returns (bool)
{
releaseLock(msg.sender);
return super.transfer(_to, _value);
}
function transferFrom(
address _from,
address _to,
uint256 _value
)
public
whenNotPaused
returns (bool)
{
require(!freezes[_from], "From account is locked.");
releaseLock(_from);
return super.transferFrom(_from, _to, _value);
}
//mintable
event Mint(address indexed to, uint256 amount);
function mint(
address _to,
uint256 _amount
)
public
onlyOwner
returns (bool)
{
super._mint(_to, _amount);
emit Mint(_to, _amount);
return true;
}
//burnable
event Burn(address indexed burner, uint256 value);
function burn(address _who, uint256 _value) public onlyOwner {
require(_value <= super.balanceOf(_who), "Balance is too small.");
_burn(_who, _value);
emit Burn(_who, _value);
}
//lockable
struct LockInfo {
uint256 releaseTime;
uint256 balance;
}
mapping(address => LockInfo[]) internal lockInfo;
event Lock(address indexed holder, uint256 value, uint256 releaseTime);
event Unlock(address indexed holder, uint256 value);
function balanceOf(address _holder) public view returns (uint256 balance) {
uint256 lockedBalance = 0;
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
lockedBalance = lockedBalance.add(lockInfo[_holder][i].balance);
}
return super.balanceOf(_holder).add(lockedBalance);
}
function releaseLock(address _holder) internal {
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
if (lockInfo[_holder][i].releaseTime <= now) {
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
i--;
}
lockInfo[_holder].length--;
}
}
}
function lockCount(address _holder) public view returns (uint256) {
return lockInfo[_holder].length;
}
function lockState(address _holder, uint256 _idx) public view returns (uint256, uint256) {
return (lockInfo[_holder][_idx].releaseTime, lockInfo[_holder][_idx].balance);
}
function lock(address _holder, uint256 _amount, uint256 _releaseTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(_releaseTime, _amount)
);
emit Lock(_holder, _amount, _releaseTime);
}
function lockAfter(address _holder, uint256 _amount, uint256 _afterTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(now + _afterTime, _amount)
);
emit Lock(_holder, _amount, now + _afterTime);
}
function unlock(address _holder, uint256 i) public onlyOwner {
require(i < lockInfo[_holder].length, "No lock information.");
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
}
lockInfo[_holder].length--;
}
function transferWithLock(address _to, uint256 _value, uint256 _releaseTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(_releaseTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, _releaseTime);
return true;
}
function transferWithLockAfter(address _to, uint256 _value, uint256 _afterTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(now + _afterTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, now + _afterTime);
return true;
}
function currentTime() public view returns (uint256) {
return now;
}
function afterTime(uint256 _value) public view returns (uint256) {
return now + _value;
}
} | renounceOwnership | function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(owner);
owner = address(0);
}
| /**
* @dev Allows the current owner to relinquish control of the contract.
* @notice Renouncing to ownership will leave the contract without an owner.
* It will not be possible to call the functions with the `onlyOwner`
* modifier anymore.
*/ | NatSpecMultiLine | v0.5.4+commit.9549d8ff | bzzr://419a8ce13d86a8a2550e594d21bfdaa2aa44c7d3784a624060f21fb5d920e78d | {
"func_code_index": [
1049,
1178
]
} | 58,762 |
|||
MineBee | contracts\mine.sol | 0x8d8129963291740dddd917ab01af18c7aed4ba58 | Solidity | MineBee | contract MineBee is ERC20 {
string public constant name = "MineBee"; // solium-disable-line uppercase
string public constant symbol = "MB"; // solium-disable-line uppercase
uint8 public constant decimals = 18; // solium-disable-line uppercase
uint256 public constant initialSupply = 5000000000 * (10 ** uint256(decimals));
constructor() public {
super._mint(msg.sender, initialSupply);
owner = msg.sender;
}
//ownership
address public owner;
event OwnershipRenounced(address indexed previousOwner);
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
modifier onlyOwner() {
require(msg.sender == owner, "Not owner");
_;
}
/**
* @dev Allows the current owner to relinquish control of the contract.
* @notice Renouncing to ownership will leave the contract without an owner.
* It will not be possible to call the functions with the `onlyOwner`
* modifier anymore.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(owner);
owner = address(0);
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0), "Already owner");
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
//pausable
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*/
modifier whenNotPaused() {
require(!paused, "Paused by owner");
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*/
modifier whenPaused() {
require(paused, "Not paused now");
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
//freezable
event Frozen(address target);
event Unfrozen(address target);
mapping(address => bool) internal freezes;
modifier whenNotFrozen() {
require(!freezes[msg.sender], "Sender account is locked.");
_;
}
function freeze(address _target) public onlyOwner {
freezes[_target] = true;
emit Frozen(_target);
}
function unfreeze(address _target) public onlyOwner {
freezes[_target] = false;
emit Unfrozen(_target);
}
function isFrozen(address _target) public view returns (bool) {
return freezes[_target];
}
function transfer(
address _to,
uint256 _value
)
public
whenNotFrozen
whenNotPaused
returns (bool)
{
releaseLock(msg.sender);
return super.transfer(_to, _value);
}
function transferFrom(
address _from,
address _to,
uint256 _value
)
public
whenNotPaused
returns (bool)
{
require(!freezes[_from], "From account is locked.");
releaseLock(_from);
return super.transferFrom(_from, _to, _value);
}
//mintable
event Mint(address indexed to, uint256 amount);
function mint(
address _to,
uint256 _amount
)
public
onlyOwner
returns (bool)
{
super._mint(_to, _amount);
emit Mint(_to, _amount);
return true;
}
//burnable
event Burn(address indexed burner, uint256 value);
function burn(address _who, uint256 _value) public onlyOwner {
require(_value <= super.balanceOf(_who), "Balance is too small.");
_burn(_who, _value);
emit Burn(_who, _value);
}
//lockable
struct LockInfo {
uint256 releaseTime;
uint256 balance;
}
mapping(address => LockInfo[]) internal lockInfo;
event Lock(address indexed holder, uint256 value, uint256 releaseTime);
event Unlock(address indexed holder, uint256 value);
function balanceOf(address _holder) public view returns (uint256 balance) {
uint256 lockedBalance = 0;
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
lockedBalance = lockedBalance.add(lockInfo[_holder][i].balance);
}
return super.balanceOf(_holder).add(lockedBalance);
}
function releaseLock(address _holder) internal {
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
if (lockInfo[_holder][i].releaseTime <= now) {
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
i--;
}
lockInfo[_holder].length--;
}
}
}
function lockCount(address _holder) public view returns (uint256) {
return lockInfo[_holder].length;
}
function lockState(address _holder, uint256 _idx) public view returns (uint256, uint256) {
return (lockInfo[_holder][_idx].releaseTime, lockInfo[_holder][_idx].balance);
}
function lock(address _holder, uint256 _amount, uint256 _releaseTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(_releaseTime, _amount)
);
emit Lock(_holder, _amount, _releaseTime);
}
function lockAfter(address _holder, uint256 _amount, uint256 _afterTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(now + _afterTime, _amount)
);
emit Lock(_holder, _amount, now + _afterTime);
}
function unlock(address _holder, uint256 i) public onlyOwner {
require(i < lockInfo[_holder].length, "No lock information.");
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
}
lockInfo[_holder].length--;
}
function transferWithLock(address _to, uint256 _value, uint256 _releaseTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(_releaseTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, _releaseTime);
return true;
}
function transferWithLockAfter(address _to, uint256 _value, uint256 _afterTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(now + _afterTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, now + _afterTime);
return true;
}
function currentTime() public view returns (uint256) {
return now;
}
function afterTime(uint256 _value) public view returns (uint256) {
return now + _value;
}
} | transferOwnership | function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
| /**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/ | NatSpecMultiLine | v0.5.4+commit.9549d8ff | bzzr://419a8ce13d86a8a2550e594d21bfdaa2aa44c7d3784a624060f21fb5d920e78d | {
"func_code_index": [
1343,
1459
]
} | 58,763 |
|||
MineBee | contracts\mine.sol | 0x8d8129963291740dddd917ab01af18c7aed4ba58 | Solidity | MineBee | contract MineBee is ERC20 {
string public constant name = "MineBee"; // solium-disable-line uppercase
string public constant symbol = "MB"; // solium-disable-line uppercase
uint8 public constant decimals = 18; // solium-disable-line uppercase
uint256 public constant initialSupply = 5000000000 * (10 ** uint256(decimals));
constructor() public {
super._mint(msg.sender, initialSupply);
owner = msg.sender;
}
//ownership
address public owner;
event OwnershipRenounced(address indexed previousOwner);
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
modifier onlyOwner() {
require(msg.sender == owner, "Not owner");
_;
}
/**
* @dev Allows the current owner to relinquish control of the contract.
* @notice Renouncing to ownership will leave the contract without an owner.
* It will not be possible to call the functions with the `onlyOwner`
* modifier anymore.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(owner);
owner = address(0);
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0), "Already owner");
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
//pausable
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*/
modifier whenNotPaused() {
require(!paused, "Paused by owner");
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*/
modifier whenPaused() {
require(paused, "Not paused now");
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
//freezable
event Frozen(address target);
event Unfrozen(address target);
mapping(address => bool) internal freezes;
modifier whenNotFrozen() {
require(!freezes[msg.sender], "Sender account is locked.");
_;
}
function freeze(address _target) public onlyOwner {
freezes[_target] = true;
emit Frozen(_target);
}
function unfreeze(address _target) public onlyOwner {
freezes[_target] = false;
emit Unfrozen(_target);
}
function isFrozen(address _target) public view returns (bool) {
return freezes[_target];
}
function transfer(
address _to,
uint256 _value
)
public
whenNotFrozen
whenNotPaused
returns (bool)
{
releaseLock(msg.sender);
return super.transfer(_to, _value);
}
function transferFrom(
address _from,
address _to,
uint256 _value
)
public
whenNotPaused
returns (bool)
{
require(!freezes[_from], "From account is locked.");
releaseLock(_from);
return super.transferFrom(_from, _to, _value);
}
//mintable
event Mint(address indexed to, uint256 amount);
function mint(
address _to,
uint256 _amount
)
public
onlyOwner
returns (bool)
{
super._mint(_to, _amount);
emit Mint(_to, _amount);
return true;
}
//burnable
event Burn(address indexed burner, uint256 value);
function burn(address _who, uint256 _value) public onlyOwner {
require(_value <= super.balanceOf(_who), "Balance is too small.");
_burn(_who, _value);
emit Burn(_who, _value);
}
//lockable
struct LockInfo {
uint256 releaseTime;
uint256 balance;
}
mapping(address => LockInfo[]) internal lockInfo;
event Lock(address indexed holder, uint256 value, uint256 releaseTime);
event Unlock(address indexed holder, uint256 value);
function balanceOf(address _holder) public view returns (uint256 balance) {
uint256 lockedBalance = 0;
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
lockedBalance = lockedBalance.add(lockInfo[_holder][i].balance);
}
return super.balanceOf(_holder).add(lockedBalance);
}
function releaseLock(address _holder) internal {
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
if (lockInfo[_holder][i].releaseTime <= now) {
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
i--;
}
lockInfo[_holder].length--;
}
}
}
function lockCount(address _holder) public view returns (uint256) {
return lockInfo[_holder].length;
}
function lockState(address _holder, uint256 _idx) public view returns (uint256, uint256) {
return (lockInfo[_holder][_idx].releaseTime, lockInfo[_holder][_idx].balance);
}
function lock(address _holder, uint256 _amount, uint256 _releaseTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(_releaseTime, _amount)
);
emit Lock(_holder, _amount, _releaseTime);
}
function lockAfter(address _holder, uint256 _amount, uint256 _afterTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(now + _afterTime, _amount)
);
emit Lock(_holder, _amount, now + _afterTime);
}
function unlock(address _holder, uint256 i) public onlyOwner {
require(i < lockInfo[_holder].length, "No lock information.");
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
}
lockInfo[_holder].length--;
}
function transferWithLock(address _to, uint256 _value, uint256 _releaseTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(_releaseTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, _releaseTime);
return true;
}
function transferWithLockAfter(address _to, uint256 _value, uint256 _afterTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(now + _afterTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, now + _afterTime);
return true;
}
function currentTime() public view returns (uint256) {
return now;
}
function afterTime(uint256 _value) public view returns (uint256) {
return now + _value;
}
} | _transferOwnership | function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0), "Already owner");
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
| /**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/ | NatSpecMultiLine | v0.5.4+commit.9549d8ff | bzzr://419a8ce13d86a8a2550e594d21bfdaa2aa44c7d3784a624060f21fb5d920e78d | {
"func_code_index": [
1597,
1808
]
} | 58,764 |
|||
MineBee | contracts\mine.sol | 0x8d8129963291740dddd917ab01af18c7aed4ba58 | Solidity | MineBee | contract MineBee is ERC20 {
string public constant name = "MineBee"; // solium-disable-line uppercase
string public constant symbol = "MB"; // solium-disable-line uppercase
uint8 public constant decimals = 18; // solium-disable-line uppercase
uint256 public constant initialSupply = 5000000000 * (10 ** uint256(decimals));
constructor() public {
super._mint(msg.sender, initialSupply);
owner = msg.sender;
}
//ownership
address public owner;
event OwnershipRenounced(address indexed previousOwner);
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
modifier onlyOwner() {
require(msg.sender == owner, "Not owner");
_;
}
/**
* @dev Allows the current owner to relinquish control of the contract.
* @notice Renouncing to ownership will leave the contract without an owner.
* It will not be possible to call the functions with the `onlyOwner`
* modifier anymore.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(owner);
owner = address(0);
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0), "Already owner");
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
//pausable
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*/
modifier whenNotPaused() {
require(!paused, "Paused by owner");
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*/
modifier whenPaused() {
require(paused, "Not paused now");
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
//freezable
event Frozen(address target);
event Unfrozen(address target);
mapping(address => bool) internal freezes;
modifier whenNotFrozen() {
require(!freezes[msg.sender], "Sender account is locked.");
_;
}
function freeze(address _target) public onlyOwner {
freezes[_target] = true;
emit Frozen(_target);
}
function unfreeze(address _target) public onlyOwner {
freezes[_target] = false;
emit Unfrozen(_target);
}
function isFrozen(address _target) public view returns (bool) {
return freezes[_target];
}
function transfer(
address _to,
uint256 _value
)
public
whenNotFrozen
whenNotPaused
returns (bool)
{
releaseLock(msg.sender);
return super.transfer(_to, _value);
}
function transferFrom(
address _from,
address _to,
uint256 _value
)
public
whenNotPaused
returns (bool)
{
require(!freezes[_from], "From account is locked.");
releaseLock(_from);
return super.transferFrom(_from, _to, _value);
}
//mintable
event Mint(address indexed to, uint256 amount);
function mint(
address _to,
uint256 _amount
)
public
onlyOwner
returns (bool)
{
super._mint(_to, _amount);
emit Mint(_to, _amount);
return true;
}
//burnable
event Burn(address indexed burner, uint256 value);
function burn(address _who, uint256 _value) public onlyOwner {
require(_value <= super.balanceOf(_who), "Balance is too small.");
_burn(_who, _value);
emit Burn(_who, _value);
}
//lockable
struct LockInfo {
uint256 releaseTime;
uint256 balance;
}
mapping(address => LockInfo[]) internal lockInfo;
event Lock(address indexed holder, uint256 value, uint256 releaseTime);
event Unlock(address indexed holder, uint256 value);
function balanceOf(address _holder) public view returns (uint256 balance) {
uint256 lockedBalance = 0;
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
lockedBalance = lockedBalance.add(lockInfo[_holder][i].balance);
}
return super.balanceOf(_holder).add(lockedBalance);
}
function releaseLock(address _holder) internal {
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
if (lockInfo[_holder][i].releaseTime <= now) {
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
i--;
}
lockInfo[_holder].length--;
}
}
}
function lockCount(address _holder) public view returns (uint256) {
return lockInfo[_holder].length;
}
function lockState(address _holder, uint256 _idx) public view returns (uint256, uint256) {
return (lockInfo[_holder][_idx].releaseTime, lockInfo[_holder][_idx].balance);
}
function lock(address _holder, uint256 _amount, uint256 _releaseTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(_releaseTime, _amount)
);
emit Lock(_holder, _amount, _releaseTime);
}
function lockAfter(address _holder, uint256 _amount, uint256 _afterTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(now + _afterTime, _amount)
);
emit Lock(_holder, _amount, now + _afterTime);
}
function unlock(address _holder, uint256 i) public onlyOwner {
require(i < lockInfo[_holder].length, "No lock information.");
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
}
lockInfo[_holder].length--;
}
function transferWithLock(address _to, uint256 _value, uint256 _releaseTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(_releaseTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, _releaseTime);
return true;
}
function transferWithLockAfter(address _to, uint256 _value, uint256 _afterTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(now + _afterTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, now + _afterTime);
return true;
}
function currentTime() public view returns (uint256) {
return now;
}
function afterTime(uint256 _value) public view returns (uint256) {
return now + _value;
}
} | pause | function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
| /**
* @dev called by the owner to pause, triggers stopped state
*/ | NatSpecMultiLine | v0.5.4+commit.9549d8ff | bzzr://419a8ce13d86a8a2550e594d21bfdaa2aa44c7d3784a624060f21fb5d920e78d | {
"func_code_index": [
2389,
2497
]
} | 58,765 |
|||
MineBee | contracts\mine.sol | 0x8d8129963291740dddd917ab01af18c7aed4ba58 | Solidity | MineBee | contract MineBee is ERC20 {
string public constant name = "MineBee"; // solium-disable-line uppercase
string public constant symbol = "MB"; // solium-disable-line uppercase
uint8 public constant decimals = 18; // solium-disable-line uppercase
uint256 public constant initialSupply = 5000000000 * (10 ** uint256(decimals));
constructor() public {
super._mint(msg.sender, initialSupply);
owner = msg.sender;
}
//ownership
address public owner;
event OwnershipRenounced(address indexed previousOwner);
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
modifier onlyOwner() {
require(msg.sender == owner, "Not owner");
_;
}
/**
* @dev Allows the current owner to relinquish control of the contract.
* @notice Renouncing to ownership will leave the contract without an owner.
* It will not be possible to call the functions with the `onlyOwner`
* modifier anymore.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(owner);
owner = address(0);
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function transferOwnership(address _newOwner) public onlyOwner {
_transferOwnership(_newOwner);
}
/**
* @dev Transfers control of the contract to a newOwner.
* @param _newOwner The address to transfer ownership to.
*/
function _transferOwnership(address _newOwner) internal {
require(_newOwner != address(0), "Already owner");
emit OwnershipTransferred(owner, _newOwner);
owner = _newOwner;
}
//pausable
event Pause();
event Unpause();
bool public paused = false;
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*/
modifier whenNotPaused() {
require(!paused, "Paused by owner");
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*/
modifier whenPaused() {
require(paused, "Not paused now");
_;
}
/**
* @dev called by the owner to pause, triggers stopped state
*/
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
/**
* @dev called by the owner to unpause, returns to normal state
*/
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
//freezable
event Frozen(address target);
event Unfrozen(address target);
mapping(address => bool) internal freezes;
modifier whenNotFrozen() {
require(!freezes[msg.sender], "Sender account is locked.");
_;
}
function freeze(address _target) public onlyOwner {
freezes[_target] = true;
emit Frozen(_target);
}
function unfreeze(address _target) public onlyOwner {
freezes[_target] = false;
emit Unfrozen(_target);
}
function isFrozen(address _target) public view returns (bool) {
return freezes[_target];
}
function transfer(
address _to,
uint256 _value
)
public
whenNotFrozen
whenNotPaused
returns (bool)
{
releaseLock(msg.sender);
return super.transfer(_to, _value);
}
function transferFrom(
address _from,
address _to,
uint256 _value
)
public
whenNotPaused
returns (bool)
{
require(!freezes[_from], "From account is locked.");
releaseLock(_from);
return super.transferFrom(_from, _to, _value);
}
//mintable
event Mint(address indexed to, uint256 amount);
function mint(
address _to,
uint256 _amount
)
public
onlyOwner
returns (bool)
{
super._mint(_to, _amount);
emit Mint(_to, _amount);
return true;
}
//burnable
event Burn(address indexed burner, uint256 value);
function burn(address _who, uint256 _value) public onlyOwner {
require(_value <= super.balanceOf(_who), "Balance is too small.");
_burn(_who, _value);
emit Burn(_who, _value);
}
//lockable
struct LockInfo {
uint256 releaseTime;
uint256 balance;
}
mapping(address => LockInfo[]) internal lockInfo;
event Lock(address indexed holder, uint256 value, uint256 releaseTime);
event Unlock(address indexed holder, uint256 value);
function balanceOf(address _holder) public view returns (uint256 balance) {
uint256 lockedBalance = 0;
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
lockedBalance = lockedBalance.add(lockInfo[_holder][i].balance);
}
return super.balanceOf(_holder).add(lockedBalance);
}
function releaseLock(address _holder) internal {
for(uint256 i = 0; i < lockInfo[_holder].length ; i++ ) {
if (lockInfo[_holder][i].releaseTime <= now) {
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
i--;
}
lockInfo[_holder].length--;
}
}
}
function lockCount(address _holder) public view returns (uint256) {
return lockInfo[_holder].length;
}
function lockState(address _holder, uint256 _idx) public view returns (uint256, uint256) {
return (lockInfo[_holder][_idx].releaseTime, lockInfo[_holder][_idx].balance);
}
function lock(address _holder, uint256 _amount, uint256 _releaseTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(_releaseTime, _amount)
);
emit Lock(_holder, _amount, _releaseTime);
}
function lockAfter(address _holder, uint256 _amount, uint256 _afterTime) public onlyOwner {
require(super.balanceOf(_holder) >= _amount, "Balance is too small.");
_balances[_holder] = _balances[_holder].sub(_amount);
lockInfo[_holder].push(
LockInfo(now + _afterTime, _amount)
);
emit Lock(_holder, _amount, now + _afterTime);
}
function unlock(address _holder, uint256 i) public onlyOwner {
require(i < lockInfo[_holder].length, "No lock information.");
_balances[_holder] = _balances[_holder].add(lockInfo[_holder][i].balance);
emit Unlock(_holder, lockInfo[_holder][i].balance);
lockInfo[_holder][i].balance = 0;
if (i != lockInfo[_holder].length - 1) {
lockInfo[_holder][i] = lockInfo[_holder][lockInfo[_holder].length - 1];
}
lockInfo[_holder].length--;
}
function transferWithLock(address _to, uint256 _value, uint256 _releaseTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(_releaseTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, _releaseTime);
return true;
}
function transferWithLockAfter(address _to, uint256 _value, uint256 _afterTime) public onlyOwner returns (bool) {
require(_to != address(0), "wrong address");
require(_value <= super.balanceOf(owner), "Not enough balance");
_balances[owner] = _balances[owner].sub(_value);
lockInfo[_to].push(
LockInfo(now + _afterTime, _value)
);
emit Transfer(owner, _to, _value);
emit Lock(_to, _value, now + _afterTime);
return true;
}
function currentTime() public view returns (uint256) {
return now;
}
function afterTime(uint256 _value) public view returns (uint256) {
return now + _value;
}
} | unpause | function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
| /**
* @dev called by the owner to unpause, returns to normal state
*/ | NatSpecMultiLine | v0.5.4+commit.9549d8ff | bzzr://419a8ce13d86a8a2550e594d21bfdaa2aa44c7d3784a624060f21fb5d920e78d | {
"func_code_index": [
2585,
2695
]
} | 58,766 |
|||
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | totalSupply | function totalSupply() external view returns (uint256);
| /**
* @dev Returns the amount of tokens in existence.
*/ | NatSpecMultiLine | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
94,
154
]
} | 58,767 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | balanceOf | function balanceOf(address account) external view returns (uint256);
| /**
* @dev Returns the amount of tokens owned by `account`.
*/ | NatSpecMultiLine | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
237,
310
]
} | 58,768 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | transfer | function transfer(address recipient, uint256 amount) external returns (bool);
| /**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/ | NatSpecMultiLine | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
534,
616
]
} | 58,769 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | allowance | function allowance(address owner, address spender) external view returns (uint256);
| /**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/ | NatSpecMultiLine | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
895,
983
]
} | 58,770 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | approve | function approve(address spender, uint256 amount) external returns (bool);
| /**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/ | NatSpecMultiLine | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
1647,
1726
]
} | 58,771 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | transferFrom | function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
| /**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/ | NatSpecMultiLine | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
2039,
2141
]
} | 58,772 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
100,
159
]
} | 58,773 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
226,
287
]
} | 58,774 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
363,
418
]
} | 58,775 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
779,
884
]
} | 58,776 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
998,
1107
]
} | 58,777 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 18;
}
| /**
* @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 18, 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
1741,
1839
]
} | 58,778 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
1899,
2012
]
} | 58,779 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
2070,
2202
]
} | 58,780 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
2410,
2590
]
} | 58,781 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
2648,
2804
]
} | 58,782 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
2946,
3120
]
} | 58,783 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - 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`.
*/ | NatSpecMultiLine | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
3597,
4024
]
} | 58,784 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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] + 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
4428,
4648
]
} | 58,785 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
5146,
5528
]
} | 58,786 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
6013,
6622
]
} | 58,787 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 += amount;
_balances[account] += 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:
*
* - `to` cannot be the zero address.
*/ | NatSpecMultiLine | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
6899,
7242
]
} | 58,788 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
7570,
8069
]
} | 58,789 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
8502,
8853
]
} | 58,790 |
NiftyToken | NiftyToken.sol | 0xf08ed21ce4f49eb9a93f9af745e7beeeca6e49cc | Solidity | ERC20 | contract ERC20 is Context, IERC20, IERC20Metadata {
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 defaut value of {decimals} is 18. 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 18, 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 18;
}
/**
* @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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
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] + 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) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
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);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += 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:
*
* - `to` 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 += amount;
_balances[account] += 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);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), 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 | v0.8.2+commit.661d1103 | None | ipfs://460d4208d7497d2e10a0493d70940826df3698010159966d92038dc5506103da | {
"func_code_index": [
9451,
9548
]
} | 58,791 |
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
94,
154
]
} | 58,792 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
237,
310
]
} | 58,793 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
534,
616
]
} | 58,794 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
895,
983
]
} | 58,795 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
1647,
1726
]
} | 58,796 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
2039,
2141
]
} | 58,797 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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;
}
} | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
259,
445
]
} | 58,798 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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;
}
} | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
723,
864
]
} | 58,799 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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;
}
} | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
1162,
1359
]
} | 58,800 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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;
}
} | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
1613,
2089
]
} | 58,801 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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;
}
} | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
2560,
2697
]
} | 58,802 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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;
}
} | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
3188,
3471
]
} | 58,803 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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;
}
} | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
3931,
4066
]
} | 58,804 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | 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;
}
} | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
4546,
4717
]
} | 58,805 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | isContract | function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
| /**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/ | NatSpecMultiLine | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
606,
1230
]
} | 58,806 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | sendValue | function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
| /**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/ | NatSpecMultiLine | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
2160,
2562
]
} | 58,807 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | functionCall | function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
| /**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
3318,
3496
]
} | 58,808 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | functionCall | function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
| /**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
3721,
3922
]
} | 58,809 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | functionCallWithValue | function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
| /**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
4292,
4523
]
} | 58,810 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | Solidity | Address | library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
} | functionCallWithValue | function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}
| /**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/ | NatSpecMultiLine | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
4774,
5095
]
} | 58,811 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | Solidity | Ownable | contract Ownable is Context {
address private _owner;
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 {
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;
}
} | owner | function owner() public view returns (address) {
return _owner;
}
| /**
* @dev Returns the address of the current owner.
*/ | NatSpecMultiLine | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
488,
572
]
} | 58,812 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | Solidity | Ownable | contract Ownable is Context {
address private _owner;
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 {
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;
}
} | renounceOwnership | function renounceOwnership() public virtual onlyOwner {
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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
1130,
1283
]
} | 58,813 |
||
PROGE | PROGE.sol | 0x149fdd2436bb835460277422c7bf17f3b57cffc0 | Solidity | Ownable | contract Ownable is Context {
address private _owner;
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 {
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;
}
} | 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 | v0.8.1+commit.df193b15 | Unlicense | ipfs://d83e49de1cb60e18b1c0fe135960a118ca85dcf6ebe951cae0c96557753d869a | {
"func_code_index": [
1433,
1682
]
} | 58,814 |
||
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | owned | contract owned {
address public owner;
/**
* 初台化构造函数
*/
function owned () public {
owner = msg.sender;
}
/**
* 判断当前合约调用者是否是合约的所有者
*/
modifier onlyOwner {
require (msg.sender == owner);
_;
}
/**
* 合约的所有者指派一个新的管理员
* @param newOwner address 新的管理员帐户地址
*/
function transferOwnership(address newOwner) onlyOwner public {
if (newOwner != address(0)) {
owner = newOwner;
}
}
} | /**
* owned是合约的管理者
*/ | NatSpecMultiLine | owned | function owned () public {
owner = msg.sender;
}
| /**
* 初台化构造函数
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
82,
149
]
} | 58,815 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | owned | contract owned {
address public owner;
/**
* 初台化构造函数
*/
function owned () public {
owner = msg.sender;
}
/**
* 判断当前合约调用者是否是合约的所有者
*/
modifier onlyOwner {
require (msg.sender == owner);
_;
}
/**
* 合约的所有者指派一个新的管理员
* @param newOwner address 新的管理员帐户地址
*/
function transferOwnership(address newOwner) onlyOwner public {
if (newOwner != address(0)) {
owner = newOwner;
}
}
} | /**
* owned是合约的管理者
*/ | NatSpecMultiLine | transferOwnership | function transferOwnership(address newOwner) onlyOwner public {
if (newOwner != address(0)) {
owner = newOwner;
}
}
| /**
* 合约的所有者指派一个新的管理员
* @param newOwner address 新的管理员帐户地址
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
371,
521
]
} | 58,816 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | TokenERC20 | contract TokenERC20 {
string public name; //发行的代币名称
string public symbol; //发行的代币符号
uint8 public decimals = 18; //代币单位，展示的小数点后面多少个0。
uint256 public totalSupply; //发行的代币总量
/*记录所有余额的映射*/
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* 在区块链上创建一个事件，用以通知客户端*/
//转帐通知事件
event Transfer(address indexed from, address indexed to, uint256 value);
event Burn(address indexed from, uint256 value); //减去用户余额事件
/* 初始化合约，并且把初始的所有代币都给这合约的创建者
* @param initialSupply 代币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
//初始化总量
totalSupply = initialSupply * 10 ** uint256(decimals);
//给指定帐户初始化代币总量，初始化用于奖励合约创建者
balanceOf[msg.sender] = totalSupply;
name = tokenName;
symbol = tokenSymbol;
}
/**
* 私有方法从一个帐户发送给另一个帐户代币
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint256 _value) internal {
//避免转帐的地址是0x0
require(_to != 0x0);
//检查发送者是否拥有足够余额
require(balanceOf[_from] >= _value);
//检查是否溢出
require(balanceOf[_to] + _value > balanceOf[_to]);
//保存数据用于后面的判断
uint previousBalances = balanceOf[_from] + balanceOf[_to];
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
//判断买、卖双方的数据是否和转换前一致
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* 从主帐户合约调用者发送给别人代币
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* 从某个指定的帐户中，向另一个帐户发送代币
* 调用过程，会检查设置的允许最大交易额
* @param _from address 发送者地址
* @param _to address 接受者地址
* @param _value uint256 要转移的代币数量
* @return success 是否交易成功
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//检查发送者是否拥有足够余额
require(_value <= allowance[_from][msg.sender]);
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险
* @param _spender 帐户地址
* @param _value 金额
*/
function approve(address _spender, uint256 _value) public returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险，加入时间参数，可以在 tokenRecipient 中做其他操作
* @param _spender 帐户地址
* @param _value 金额
* @param _extraData 操作的时间
*/
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;
}
}
/**
* 减少代币调用者的余额
* 操作以后是不可逆的
* @param _value 要删除的数量
*/
function burn(uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[msg.sender] >= _value);
//给指定帐户减去余额
balanceOf[msg.sender] -= _value;
//代币问题做相应扣除
totalSupply -= _value;
Burn(msg.sender, _value);
return true;
}
/**
* 删除帐户的余额（含其他帐户）
* 删除以后是不可逆的
* @param _from 要操作的帐户地址
* @param _value 要减去的数量
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[_from] >= _value);
//检查 其他帐户 的余额是否够使用
require(_value <= allowance[_from][msg.sender]);
//减掉代币
balanceOf[_from] -= _value;
allowance[_from][msg.sender] -= _value;
//更新总量
totalSupply -= _value;
Burn(_from, _value);
return true;
}
} | /**
* 基础代币合约
*/ | NatSpecMultiLine | TokenERC20 | function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
//初始化总量
totalSupply = initialSupply * 10 ** uint256(decimals);
//给指定帐户初始化代币总量，初始化用于奖励合约创建者
balanceOf[msg.sender] = totalSupply;
name = tokenName;
symbol = tokenSymbol;
}
| /* 初始化合约，并且把初始的所有代币都给这合约的创建者
* @param initialSupply 代币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/ | Comment | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
676,
1002
]
} | 58,817 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | TokenERC20 | contract TokenERC20 {
string public name; //发行的代币名称
string public symbol; //发行的代币符号
uint8 public decimals = 18; //代币单位，展示的小数点后面多少个0。
uint256 public totalSupply; //发行的代币总量
/*记录所有余额的映射*/
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* 在区块链上创建一个事件，用以通知客户端*/
//转帐通知事件
event Transfer(address indexed from, address indexed to, uint256 value);
event Burn(address indexed from, uint256 value); //减去用户余额事件
/* 初始化合约，并且把初始的所有代币都给这合约的创建者
* @param initialSupply 代币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
//初始化总量
totalSupply = initialSupply * 10 ** uint256(decimals);
//给指定帐户初始化代币总量，初始化用于奖励合约创建者
balanceOf[msg.sender] = totalSupply;
name = tokenName;
symbol = tokenSymbol;
}
/**
* 私有方法从一个帐户发送给另一个帐户代币
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint256 _value) internal {
//避免转帐的地址是0x0
require(_to != 0x0);
//检查发送者是否拥有足够余额
require(balanceOf[_from] >= _value);
//检查是否溢出
require(balanceOf[_to] + _value > balanceOf[_to]);
//保存数据用于后面的判断
uint previousBalances = balanceOf[_from] + balanceOf[_to];
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
//判断买、卖双方的数据是否和转换前一致
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* 从主帐户合约调用者发送给别人代币
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* 从某个指定的帐户中，向另一个帐户发送代币
* 调用过程，会检查设置的允许最大交易额
* @param _from address 发送者地址
* @param _to address 接受者地址
* @param _value uint256 要转移的代币数量
* @return success 是否交易成功
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//检查发送者是否拥有足够余额
require(_value <= allowance[_from][msg.sender]);
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险
* @param _spender 帐户地址
* @param _value 金额
*/
function approve(address _spender, uint256 _value) public returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险，加入时间参数，可以在 tokenRecipient 中做其他操作
* @param _spender 帐户地址
* @param _value 金额
* @param _extraData 操作的时间
*/
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;
}
}
/**
* 减少代币调用者的余额
* 操作以后是不可逆的
* @param _value 要删除的数量
*/
function burn(uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[msg.sender] >= _value);
//给指定帐户减去余额
balanceOf[msg.sender] -= _value;
//代币问题做相应扣除
totalSupply -= _value;
Burn(msg.sender, _value);
return true;
}
/**
* 删除帐户的余额（含其他帐户）
* 删除以后是不可逆的
* @param _from 要操作的帐户地址
* @param _value 要减去的数量
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[_from] >= _value);
//检查 其他帐户 的余额是否够使用
require(_value <= allowance[_from][msg.sender]);
//减掉代币
balanceOf[_from] -= _value;
allowance[_from][msg.sender] -= _value;
//更新总量
totalSupply -= _value;
Burn(_from, _value);
return true;
}
} | /**
* 基础代币合约
*/ | NatSpecMultiLine | _transfer | function _transfer(address _from, address _to, uint256 _value) internal {
//避免转帐的地址是0x0
require(_to != 0x0);
//检查发送者是否拥有足够余额
require(balanceOf[_from] >= _value);
//检查是否溢出
require(balanceOf[_to] + _value > balanceOf[_to]);
//保存数据用于后面的判断
uint previousBalances = balanceOf[_from] + balanceOf[_to];
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
//判断买、卖双方的数据是否和转换前一致
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
| /**
* 私有方法从一个帐户发送给另一个帐户代币
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
1168,
1822
]
} | 58,818 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | TokenERC20 | contract TokenERC20 {
string public name; //发行的代币名称
string public symbol; //发行的代币符号
uint8 public decimals = 18; //代币单位，展示的小数点后面多少个0。
uint256 public totalSupply; //发行的代币总量
/*记录所有余额的映射*/
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* 在区块链上创建一个事件，用以通知客户端*/
//转帐通知事件
event Transfer(address indexed from, address indexed to, uint256 value);
event Burn(address indexed from, uint256 value); //减去用户余额事件
/* 初始化合约，并且把初始的所有代币都给这合约的创建者
* @param initialSupply 代币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
//初始化总量
totalSupply = initialSupply * 10 ** uint256(decimals);
//给指定帐户初始化代币总量，初始化用于奖励合约创建者
balanceOf[msg.sender] = totalSupply;
name = tokenName;
symbol = tokenSymbol;
}
/**
* 私有方法从一个帐户发送给另一个帐户代币
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint256 _value) internal {
//避免转帐的地址是0x0
require(_to != 0x0);
//检查发送者是否拥有足够余额
require(balanceOf[_from] >= _value);
//检查是否溢出
require(balanceOf[_to] + _value > balanceOf[_to]);
//保存数据用于后面的判断
uint previousBalances = balanceOf[_from] + balanceOf[_to];
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
//判断买、卖双方的数据是否和转换前一致
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* 从主帐户合约调用者发送给别人代币
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* 从某个指定的帐户中，向另一个帐户发送代币
* 调用过程，会检查设置的允许最大交易额
* @param _from address 发送者地址
* @param _to address 接受者地址
* @param _value uint256 要转移的代币数量
* @return success 是否交易成功
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//检查发送者是否拥有足够余额
require(_value <= allowance[_from][msg.sender]);
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险
* @param _spender 帐户地址
* @param _value 金额
*/
function approve(address _spender, uint256 _value) public returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险，加入时间参数，可以在 tokenRecipient 中做其他操作
* @param _spender 帐户地址
* @param _value 金额
* @param _extraData 操作的时间
*/
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;
}
}
/**
* 减少代币调用者的余额
* 操作以后是不可逆的
* @param _value 要删除的数量
*/
function burn(uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[msg.sender] >= _value);
//给指定帐户减去余额
balanceOf[msg.sender] -= _value;
//代币问题做相应扣除
totalSupply -= _value;
Burn(msg.sender, _value);
return true;
}
/**
* 删除帐户的余额（含其他帐户）
* 删除以后是不可逆的
* @param _from 要操作的帐户地址
* @param _value 要减去的数量
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[_from] >= _value);
//检查 其他帐户 的余额是否够使用
require(_value <= allowance[_from][msg.sender]);
//减掉代币
balanceOf[_from] -= _value;
allowance[_from][msg.sender] -= _value;
//更新总量
totalSupply -= _value;
Burn(_from, _value);
return true;
}
} | /**
* 基础代币合约
*/ | NatSpecMultiLine | transfer | function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
| /**
* 从主帐户合约调用者发送给别人代币
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
1944,
2056
]
} | 58,819 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | TokenERC20 | contract TokenERC20 {
string public name; //发行的代币名称
string public symbol; //发行的代币符号
uint8 public decimals = 18; //代币单位，展示的小数点后面多少个0。
uint256 public totalSupply; //发行的代币总量
/*记录所有余额的映射*/
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* 在区块链上创建一个事件，用以通知客户端*/
//转帐通知事件
event Transfer(address indexed from, address indexed to, uint256 value);
event Burn(address indexed from, uint256 value); //减去用户余额事件
/* 初始化合约，并且把初始的所有代币都给这合约的创建者
* @param initialSupply 代币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
//初始化总量
totalSupply = initialSupply * 10 ** uint256(decimals);
//给指定帐户初始化代币总量，初始化用于奖励合约创建者
balanceOf[msg.sender] = totalSupply;
name = tokenName;
symbol = tokenSymbol;
}
/**
* 私有方法从一个帐户发送给另一个帐户代币
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint256 _value) internal {
//避免转帐的地址是0x0
require(_to != 0x0);
//检查发送者是否拥有足够余额
require(balanceOf[_from] >= _value);
//检查是否溢出
require(balanceOf[_to] + _value > balanceOf[_to]);
//保存数据用于后面的判断
uint previousBalances = balanceOf[_from] + balanceOf[_to];
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
//判断买、卖双方的数据是否和转换前一致
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* 从主帐户合约调用者发送给别人代币
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* 从某个指定的帐户中，向另一个帐户发送代币
* 调用过程，会检查设置的允许最大交易额
* @param _from address 发送者地址
* @param _to address 接受者地址
* @param _value uint256 要转移的代币数量
* @return success 是否交易成功
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//检查发送者是否拥有足够余额
require(_value <= allowance[_from][msg.sender]);
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险
* @param _spender 帐户地址
* @param _value 金额
*/
function approve(address _spender, uint256 _value) public returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险，加入时间参数，可以在 tokenRecipient 中做其他操作
* @param _spender 帐户地址
* @param _value 金额
* @param _extraData 操作的时间
*/
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;
}
}
/**
* 减少代币调用者的余额
* 操作以后是不可逆的
* @param _value 要删除的数量
*/
function burn(uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[msg.sender] >= _value);
//给指定帐户减去余额
balanceOf[msg.sender] -= _value;
//代币问题做相应扣除
totalSupply -= _value;
Burn(msg.sender, _value);
return true;
}
/**
* 删除帐户的余额（含其他帐户）
* 删除以后是不可逆的
* @param _from 要操作的帐户地址
* @param _value 要减去的数量
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[_from] >= _value);
//检查 其他帐户 的余额是否够使用
require(_value <= allowance[_from][msg.sender]);
//减掉代币
balanceOf[_from] -= _value;
allowance[_from][msg.sender] -= _value;
//更新总量
totalSupply -= _value;
Burn(_from, _value);
return true;
}
} | /**
* 基础代币合约
*/ | NatSpecMultiLine | transferFrom | function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//检查发送者是否拥有足够余额
require(_value <= allowance[_from][msg.sender]);
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
| /**
* 从某个指定的帐户中，向另一个帐户发送代币
* 调用过程，会检查设置的允许最大交易额
* @param _from address 发送者地址
* @param _to address 接受者地址
* @param _value uint256 要转移的代币数量
* @return success 是否交易成功
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
2282,
2585
]
} | 58,820 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | TokenERC20 | contract TokenERC20 {
string public name; //发行的代币名称
string public symbol; //发行的代币符号
uint8 public decimals = 18; //代币单位，展示的小数点后面多少个0。
uint256 public totalSupply; //发行的代币总量
/*记录所有余额的映射*/
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* 在区块链上创建一个事件，用以通知客户端*/
//转帐通知事件
event Transfer(address indexed from, address indexed to, uint256 value);
event Burn(address indexed from, uint256 value); //减去用户余额事件
/* 初始化合约，并且把初始的所有代币都给这合约的创建者
* @param initialSupply 代币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
//初始化总量
totalSupply = initialSupply * 10 ** uint256(decimals);
//给指定帐户初始化代币总量，初始化用于奖励合约创建者
balanceOf[msg.sender] = totalSupply;
name = tokenName;
symbol = tokenSymbol;
}
/**
* 私有方法从一个帐户发送给另一个帐户代币
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint256 _value) internal {
//避免转帐的地址是0x0
require(_to != 0x0);
//检查发送者是否拥有足够余额
require(balanceOf[_from] >= _value);
//检查是否溢出
require(balanceOf[_to] + _value > balanceOf[_to]);
//保存数据用于后面的判断
uint previousBalances = balanceOf[_from] + balanceOf[_to];
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
//判断买、卖双方的数据是否和转换前一致
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* 从主帐户合约调用者发送给别人代币
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* 从某个指定的帐户中，向另一个帐户发送代币
* 调用过程，会检查设置的允许最大交易额
* @param _from address 发送者地址
* @param _to address 接受者地址
* @param _value uint256 要转移的代币数量
* @return success 是否交易成功
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//检查发送者是否拥有足够余额
require(_value <= allowance[_from][msg.sender]);
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险
* @param _spender 帐户地址
* @param _value 金额
*/
function approve(address _spender, uint256 _value) public returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险，加入时间参数，可以在 tokenRecipient 中做其他操作
* @param _spender 帐户地址
* @param _value 金额
* @param _extraData 操作的时间
*/
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;
}
}
/**
* 减少代币调用者的余额
* 操作以后是不可逆的
* @param _value 要删除的数量
*/
function burn(uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[msg.sender] >= _value);
//给指定帐户减去余额
balanceOf[msg.sender] -= _value;
//代币问题做相应扣除
totalSupply -= _value;
Burn(msg.sender, _value);
return true;
}
/**
* 删除帐户的余额（含其他帐户）
* 删除以后是不可逆的
* @param _from 要操作的帐户地址
* @param _value 要减去的数量
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[_from] >= _value);
//检查 其他帐户 的余额是否够使用
require(_value <= allowance[_from][msg.sender]);
//减掉代币
balanceOf[_from] -= _value;
allowance[_from][msg.sender] -= _value;
//更新总量
totalSupply -= _value;
Burn(_from, _value);
return true;
}
} | /**
* 基础代币合约
*/ | NatSpecMultiLine | approve | function approve(address _spender, uint256 _value) public returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
| /**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险
* @param _spender 帐户地址
* @param _value 金额
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
2714,
2881
]
} | 58,821 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | TokenERC20 | contract TokenERC20 {
string public name; //发行的代币名称
string public symbol; //发行的代币符号
uint8 public decimals = 18; //代币单位，展示的小数点后面多少个0。
uint256 public totalSupply; //发行的代币总量
/*记录所有余额的映射*/
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* 在区块链上创建一个事件，用以通知客户端*/
//转帐通知事件
event Transfer(address indexed from, address indexed to, uint256 value);
event Burn(address indexed from, uint256 value); //减去用户余额事件
/* 初始化合约，并且把初始的所有代币都给这合约的创建者
* @param initialSupply 代币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
//初始化总量
totalSupply = initialSupply * 10 ** uint256(decimals);
//给指定帐户初始化代币总量，初始化用于奖励合约创建者
balanceOf[msg.sender] = totalSupply;
name = tokenName;
symbol = tokenSymbol;
}
/**
* 私有方法从一个帐户发送给另一个帐户代币
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint256 _value) internal {
//避免转帐的地址是0x0
require(_to != 0x0);
//检查发送者是否拥有足够余额
require(balanceOf[_from] >= _value);
//检查是否溢出
require(balanceOf[_to] + _value > balanceOf[_to]);
//保存数据用于后面的判断
uint previousBalances = balanceOf[_from] + balanceOf[_to];
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
//判断买、卖双方的数据是否和转换前一致
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* 从主帐户合约调用者发送给别人代币
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* 从某个指定的帐户中，向另一个帐户发送代币
* 调用过程，会检查设置的允许最大交易额
* @param _from address 发送者地址
* @param _to address 接受者地址
* @param _value uint256 要转移的代币数量
* @return success 是否交易成功
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//检查发送者是否拥有足够余额
require(_value <= allowance[_from][msg.sender]);
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险
* @param _spender 帐户地址
* @param _value 金额
*/
function approve(address _spender, uint256 _value) public returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险，加入时间参数，可以在 tokenRecipient 中做其他操作
* @param _spender 帐户地址
* @param _value 金额
* @param _extraData 操作的时间
*/
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;
}
}
/**
* 减少代币调用者的余额
* 操作以后是不可逆的
* @param _value 要删除的数量
*/
function burn(uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[msg.sender] >= _value);
//给指定帐户减去余额
balanceOf[msg.sender] -= _value;
//代币问题做相应扣除
totalSupply -= _value;
Burn(msg.sender, _value);
return true;
}
/**
* 删除帐户的余额（含其他帐户）
* 删除以后是不可逆的
* @param _from 要操作的帐户地址
* @param _value 要减去的数量
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[_from] >= _value);
//检查 其他帐户 的余额是否够使用
require(_value <= allowance[_from][msg.sender]);
//减掉代币
balanceOf[_from] -= _value;
allowance[_from][msg.sender] -= _value;
//更新总量
totalSupply -= _value;
Burn(_from, _value);
return true;
}
} | /**
* 基础代币合约
*/ | NatSpecMultiLine | 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;
}
}
| /**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险，加入时间参数，可以在 tokenRecipient 中做其他操作
* @param _spender 帐户地址
* @param _value 金额
* @param _extraData 操作的时间
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
3075,
3409
]
} | 58,822 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | TokenERC20 | contract TokenERC20 {
string public name; //发行的代币名称
string public symbol; //发行的代币符号
uint8 public decimals = 18; //代币单位，展示的小数点后面多少个0。
uint256 public totalSupply; //发行的代币总量
/*记录所有余额的映射*/
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* 在区块链上创建一个事件，用以通知客户端*/
//转帐通知事件
event Transfer(address indexed from, address indexed to, uint256 value);
event Burn(address indexed from, uint256 value); //减去用户余额事件
/* 初始化合约，并且把初始的所有代币都给这合约的创建者
* @param initialSupply 代币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
//初始化总量
totalSupply = initialSupply * 10 ** uint256(decimals);
//给指定帐户初始化代币总量，初始化用于奖励合约创建者
balanceOf[msg.sender] = totalSupply;
name = tokenName;
symbol = tokenSymbol;
}
/**
* 私有方法从一个帐户发送给另一个帐户代币
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint256 _value) internal {
//避免转帐的地址是0x0
require(_to != 0x0);
//检查发送者是否拥有足够余额
require(balanceOf[_from] >= _value);
//检查是否溢出
require(balanceOf[_to] + _value > balanceOf[_to]);
//保存数据用于后面的判断
uint previousBalances = balanceOf[_from] + balanceOf[_to];
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
//判断买、卖双方的数据是否和转换前一致
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* 从主帐户合约调用者发送给别人代币
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* 从某个指定的帐户中，向另一个帐户发送代币
* 调用过程，会检查设置的允许最大交易额
* @param _from address 发送者地址
* @param _to address 接受者地址
* @param _value uint256 要转移的代币数量
* @return success 是否交易成功
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//检查发送者是否拥有足够余额
require(_value <= allowance[_from][msg.sender]);
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险
* @param _spender 帐户地址
* @param _value 金额
*/
function approve(address _spender, uint256 _value) public returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险，加入时间参数，可以在 tokenRecipient 中做其他操作
* @param _spender 帐户地址
* @param _value 金额
* @param _extraData 操作的时间
*/
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;
}
}
/**
* 减少代币调用者的余额
* 操作以后是不可逆的
* @param _value 要删除的数量
*/
function burn(uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[msg.sender] >= _value);
//给指定帐户减去余额
balanceOf[msg.sender] -= _value;
//代币问题做相应扣除
totalSupply -= _value;
Burn(msg.sender, _value);
return true;
}
/**
* 删除帐户的余额（含其他帐户）
* 删除以后是不可逆的
* @param _from 要操作的帐户地址
* @param _value 要减去的数量
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[_from] >= _value);
//检查 其他帐户 的余额是否够使用
require(_value <= allowance[_from][msg.sender]);
//减掉代币
balanceOf[_from] -= _value;
allowance[_from][msg.sender] -= _value;
//更新总量
totalSupply -= _value;
Burn(_from, _value);
return true;
}
} | /**
* 基础代币合约
*/ | NatSpecMultiLine | burn | function burn(uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[msg.sender] >= _value);
//给指定帐户减去余额
balanceOf[msg.sender] -= _value;
//代币问题做相应扣除
totalSupply -= _value;
Burn(msg.sender, _value);
return true;
}
| /**
* 减少代币调用者的余额
* 操作以后是不可逆的
* @param _value 要删除的数量
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
3497,
3821
]
} | 58,823 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | TokenERC20 | contract TokenERC20 {
string public name; //发行的代币名称
string public symbol; //发行的代币符号
uint8 public decimals = 18; //代币单位，展示的小数点后面多少个0。
uint256 public totalSupply; //发行的代币总量
/*记录所有余额的映射*/
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
/* 在区块链上创建一个事件，用以通知客户端*/
//转帐通知事件
event Transfer(address indexed from, address indexed to, uint256 value);
event Burn(address indexed from, uint256 value); //减去用户余额事件
/* 初始化合约，并且把初始的所有代币都给这合约的创建者
* @param initialSupply 代币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function TokenERC20(uint256 initialSupply, string tokenName, string tokenSymbol) public {
//初始化总量
totalSupply = initialSupply * 10 ** uint256(decimals);
//给指定帐户初始化代币总量，初始化用于奖励合约创建者
balanceOf[msg.sender] = totalSupply;
name = tokenName;
symbol = tokenSymbol;
}
/**
* 私有方法从一个帐户发送给另一个帐户代币
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint256 _value) internal {
//避免转帐的地址是0x0
require(_to != 0x0);
//检查发送者是否拥有足够余额
require(balanceOf[_from] >= _value);
//检查是否溢出
require(balanceOf[_to] + _value > balanceOf[_to]);
//保存数据用于后面的判断
uint previousBalances = balanceOf[_from] + balanceOf[_to];
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
//判断买、卖双方的数据是否和转换前一致
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* 从主帐户合约调用者发送给别人代币
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* 从某个指定的帐户中，向另一个帐户发送代币
* 调用过程，会检查设置的允许最大交易额
* @param _from address 发送者地址
* @param _to address 接受者地址
* @param _value uint256 要转移的代币数量
* @return success 是否交易成功
*/
function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
//检查发送者是否拥有足够余额
require(_value <= allowance[_from][msg.sender]);
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险
* @param _spender 帐户地址
* @param _value 金额
*/
function approve(address _spender, uint256 _value) public returns (bool success) {
allowance[msg.sender][_spender] = _value;
return true;
}
/**
* 设置帐户允许支付的最大金额
* 一般在智能合约的时候，避免支付过多，造成风险，加入时间参数，可以在 tokenRecipient 中做其他操作
* @param _spender 帐户地址
* @param _value 金额
* @param _extraData 操作的时间
*/
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;
}
}
/**
* 减少代币调用者的余额
* 操作以后是不可逆的
* @param _value 要删除的数量
*/
function burn(uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[msg.sender] >= _value);
//给指定帐户减去余额
balanceOf[msg.sender] -= _value;
//代币问题做相应扣除
totalSupply -= _value;
Burn(msg.sender, _value);
return true;
}
/**
* 删除帐户的余额（含其他帐户）
* 删除以后是不可逆的
* @param _from 要操作的帐户地址
* @param _value 要减去的数量
*/
function burnFrom(address _from, uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[_from] >= _value);
//检查 其他帐户 的余额是否够使用
require(_value <= allowance[_from][msg.sender]);
//减掉代币
balanceOf[_from] -= _value;
allowance[_from][msg.sender] -= _value;
//更新总量
totalSupply -= _value;
Burn(_from, _value);
return true;
}
} | /**
* 基础代币合约
*/ | NatSpecMultiLine | burnFrom | function burnFrom(address _from, uint256 _value) public returns (bool success) {
//检查帐户余额是否大于要减去的值
require(balanceOf[_from] >= _value);
//检查 其他帐户 的余额是否够使用
require(_value <= allowance[_from][msg.sender]);
//减掉代币
balanceOf[_from] -= _value;
allowance[_from][msg.sender] -= _value;
//更新总量
totalSupply -= _value;
Burn(_from, _value);
return true;
}
| /**
* 删除帐户的余额（含其他帐户）
* 删除以后是不可逆的
* @param _from 要操作的帐户地址
* @param _value 要减去的数量
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
3943,
4396
]
} | 58,824 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | MyAdvancedToken | contract MyAdvancedToken is owned, TokenERC20 {
//卖出的汇率,一个代币，可以卖出多少个以太币，单位是wei
uint256 public sellPrice;
//买入的汇率,1个以太币，可以买几个代币
uint256 public buyPrice;
/*初始化合约，并且把初始的所有的令牌都给这合约的创建者
* @param initialSupply 所有币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function MyAdvancedToken(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/**
* 私有方法，从指定帐户转出余额
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint _value) internal {
//避免转帐的地址是0x0
require (_to != 0x0);
//检查发送者是否拥有足够余额
require (balanceOf[_from] > _value);
//检查是否溢出
require (balanceOf[_to] + _value > balanceOf[_to]);
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
}
/**
* 合约拥有者，可以为指定帐户创造一些代币
* @param target address 帐户地址
* @param mintedAmount uint256 增加的金额(单位是wei)
*/
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
//给指定地址增加代币，同时总量也相加
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/**
* 设置买卖价格
*
* 如果你想让ether(或其他代币)为你的代币进行背书,以便可以市场价自动化买卖代币,我们可以这么做。如果要使用浮动的价格，也可以在这里设置
*
* @param newSellPrice 新的卖出价格
* @param newBuyPrice 新的买入价格
*/
function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public {
sellPrice = newSellPrice;
buyPrice = newBuyPrice;
}
/**
* 使用以太币购买代币
*/
function buy() payable public {
uint amount = msg.value / buyPrice;
_transfer(this, msg.sender, amount);
}
/**
* @dev 卖出代币
* @return 要卖出的数量(单位是wei)
*/
function sell(uint256 amount) public {
//检查合约的余额是否充足
require(this.balance >= amount * sellPrice);
_transfer(msg.sender, this, amount);
msg.sender.transfer(amount * sellPrice);
}
} | /**
* 代币增发、
* 代币自动销售和购买、
* 高级代币功能
*/ | NatSpecMultiLine | MyAdvancedToken | function MyAdvancedToken(
uint256 initialSupply,
string tokenName,
string tokenSymbol
kenERC20(initialSupply, tokenName, tokenSymbol) public {}
| /*初始化合约，并且把初始的所有的令牌都给这合约的创建者
* @param initialSupply 所有币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/ | Comment | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
326,
514
]
} | 58,825 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | MyAdvancedToken | contract MyAdvancedToken is owned, TokenERC20 {
//卖出的汇率,一个代币，可以卖出多少个以太币，单位是wei
uint256 public sellPrice;
//买入的汇率,1个以太币，可以买几个代币
uint256 public buyPrice;
/*初始化合约，并且把初始的所有的令牌都给这合约的创建者
* @param initialSupply 所有币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function MyAdvancedToken(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/**
* 私有方法，从指定帐户转出余额
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint _value) internal {
//避免转帐的地址是0x0
require (_to != 0x0);
//检查发送者是否拥有足够余额
require (balanceOf[_from] > _value);
//检查是否溢出
require (balanceOf[_to] + _value > balanceOf[_to]);
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
}
/**
* 合约拥有者，可以为指定帐户创造一些代币
* @param target address 帐户地址
* @param mintedAmount uint256 增加的金额(单位是wei)
*/
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
//给指定地址增加代币，同时总量也相加
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/**
* 设置买卖价格
*
* 如果你想让ether(或其他代币)为你的代币进行背书,以便可以市场价自动化买卖代币,我们可以这么做。如果要使用浮动的价格，也可以在这里设置
*
* @param newSellPrice 新的卖出价格
* @param newBuyPrice 新的买入价格
*/
function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public {
sellPrice = newSellPrice;
buyPrice = newBuyPrice;
}
/**
* 使用以太币购买代币
*/
function buy() payable public {
uint amount = msg.value / buyPrice;
_transfer(this, msg.sender, amount);
}
/**
* @dev 卖出代币
* @return 要卖出的数量(单位是wei)
*/
function sell(uint256 amount) public {
//检查合约的余额是否充足
require(this.balance >= amount * sellPrice);
_transfer(msg.sender, this, amount);
msg.sender.transfer(amount * sellPrice);
}
} | /**
* 代币增发、
* 代币自动销售和购买、
* 高级代币功能
*/ | NatSpecMultiLine | _transfer | function _transfer(address _from, address _to, uint _value) internal {
//避免转帐的地址是0x0
require (_to != 0x0);
//检查发送者是否拥有足够余额
require (balanceOf[_from] > _value);
//检查是否溢出
require (balanceOf[_to] + _value > balanceOf[_to]);
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
}
| /**
* 私有方法，从指定帐户转出余额
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
675,
1161
]
} | 58,826 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | MyAdvancedToken | contract MyAdvancedToken is owned, TokenERC20 {
//卖出的汇率,一个代币，可以卖出多少个以太币，单位是wei
uint256 public sellPrice;
//买入的汇率,1个以太币，可以买几个代币
uint256 public buyPrice;
/*初始化合约，并且把初始的所有的令牌都给这合约的创建者
* @param initialSupply 所有币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function MyAdvancedToken(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/**
* 私有方法，从指定帐户转出余额
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint _value) internal {
//避免转帐的地址是0x0
require (_to != 0x0);
//检查发送者是否拥有足够余额
require (balanceOf[_from] > _value);
//检查是否溢出
require (balanceOf[_to] + _value > balanceOf[_to]);
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
}
/**
* 合约拥有者，可以为指定帐户创造一些代币
* @param target address 帐户地址
* @param mintedAmount uint256 增加的金额(单位是wei)
*/
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
//给指定地址增加代币，同时总量也相加
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/**
* 设置买卖价格
*
* 如果你想让ether(或其他代币)为你的代币进行背书,以便可以市场价自动化买卖代币,我们可以这么做。如果要使用浮动的价格，也可以在这里设置
*
* @param newSellPrice 新的卖出价格
* @param newBuyPrice 新的买入价格
*/
function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public {
sellPrice = newSellPrice;
buyPrice = newBuyPrice;
}
/**
* 使用以太币购买代币
*/
function buy() payable public {
uint amount = msg.value / buyPrice;
_transfer(this, msg.sender, amount);
}
/**
* @dev 卖出代币
* @return 要卖出的数量(单位是wei)
*/
function sell(uint256 amount) public {
//检查合约的余额是否充足
require(this.balance >= amount * sellPrice);
_transfer(msg.sender, this, amount);
msg.sender.transfer(amount * sellPrice);
}
} | /**
* 代币增发、
* 代币自动销售和购买、
* 高级代币功能
*/ | NatSpecMultiLine | mintToken | function mintToken(address target, uint256 mintedAmount) onlyOwner public {
//给指定地址增加代币，同时总量也相加
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
| /**
* 合约拥有者，可以为指定帐户创造一些代币
* @param target address 帐户地址
* @param mintedAmount uint256 增加的金额(单位是wei)
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
1298,
1594
]
} | 58,827 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | MyAdvancedToken | contract MyAdvancedToken is owned, TokenERC20 {
//卖出的汇率,一个代币，可以卖出多少个以太币，单位是wei
uint256 public sellPrice;
//买入的汇率,1个以太币，可以买几个代币
uint256 public buyPrice;
/*初始化合约，并且把初始的所有的令牌都给这合约的创建者
* @param initialSupply 所有币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function MyAdvancedToken(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/**
* 私有方法，从指定帐户转出余额
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint _value) internal {
//避免转帐的地址是0x0
require (_to != 0x0);
//检查发送者是否拥有足够余额
require (balanceOf[_from] > _value);
//检查是否溢出
require (balanceOf[_to] + _value > balanceOf[_to]);
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
}
/**
* 合约拥有者，可以为指定帐户创造一些代币
* @param target address 帐户地址
* @param mintedAmount uint256 增加的金额(单位是wei)
*/
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
//给指定地址增加代币，同时总量也相加
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/**
* 设置买卖价格
*
* 如果你想让ether(或其他代币)为你的代币进行背书,以便可以市场价自动化买卖代币,我们可以这么做。如果要使用浮动的价格，也可以在这里设置
*
* @param newSellPrice 新的卖出价格
* @param newBuyPrice 新的买入价格
*/
function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public {
sellPrice = newSellPrice;
buyPrice = newBuyPrice;
}
/**
* 使用以太币购买代币
*/
function buy() payable public {
uint amount = msg.value / buyPrice;
_transfer(this, msg.sender, amount);
}
/**
* @dev 卖出代币
* @return 要卖出的数量(单位是wei)
*/
function sell(uint256 amount) public {
//检查合约的余额是否充足
require(this.balance >= amount * sellPrice);
_transfer(msg.sender, this, amount);
msg.sender.transfer(amount * sellPrice);
}
} | /**
* 代币增发、
* 代币自动销售和购买、
* 高级代币功能
*/ | NatSpecMultiLine | setPrices | function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public {
sellPrice = newSellPrice;
buyPrice = newBuyPrice;
}
| /**
* 设置买卖价格
*
* 如果你想让ether(或其他代币)为你的代币进行背书,以便可以市场价自动化买卖代币,我们可以这么做。如果要使用浮动的价格，也可以在这里设置
*
* @param newSellPrice 新的卖出价格
* @param newBuyPrice 新的买入价格
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
1797,
1957
]
} | 58,828 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | MyAdvancedToken | contract MyAdvancedToken is owned, TokenERC20 {
//卖出的汇率,一个代币，可以卖出多少个以太币，单位是wei
uint256 public sellPrice;
//买入的汇率,1个以太币，可以买几个代币
uint256 public buyPrice;
/*初始化合约，并且把初始的所有的令牌都给这合约的创建者
* @param initialSupply 所有币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function MyAdvancedToken(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/**
* 私有方法，从指定帐户转出余额
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint _value) internal {
//避免转帐的地址是0x0
require (_to != 0x0);
//检查发送者是否拥有足够余额
require (balanceOf[_from] > _value);
//检查是否溢出
require (balanceOf[_to] + _value > balanceOf[_to]);
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
}
/**
* 合约拥有者，可以为指定帐户创造一些代币
* @param target address 帐户地址
* @param mintedAmount uint256 增加的金额(单位是wei)
*/
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
//给指定地址增加代币，同时总量也相加
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/**
* 设置买卖价格
*
* 如果你想让ether(或其他代币)为你的代币进行背书,以便可以市场价自动化买卖代币,我们可以这么做。如果要使用浮动的价格，也可以在这里设置
*
* @param newSellPrice 新的卖出价格
* @param newBuyPrice 新的买入价格
*/
function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public {
sellPrice = newSellPrice;
buyPrice = newBuyPrice;
}
/**
* 使用以太币购买代币
*/
function buy() payable public {
uint amount = msg.value / buyPrice;
_transfer(this, msg.sender, amount);
}
/**
* @dev 卖出代币
* @return 要卖出的数量(单位是wei)
*/
function sell(uint256 amount) public {
//检查合约的余额是否充足
require(this.balance >= amount * sellPrice);
_transfer(msg.sender, this, amount);
msg.sender.transfer(amount * sellPrice);
}
} | /**
* 代币增发、
* 代币自动销售和购买、
* 高级代币功能
*/ | NatSpecMultiLine | buy | function buy() payable public {
uint amount = msg.value / buyPrice;
_transfer(this, msg.sender, amount);
}
| /**
* 使用以太币购买代币
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
1997,
2130
]
} | 58,829 |
MyAdvancedToken | MyAdvancedToken.sol | 0xb68b4bb27861dcdcad76e39323a4da62269586d4 | Solidity | MyAdvancedToken | contract MyAdvancedToken is owned, TokenERC20 {
//卖出的汇率,一个代币，可以卖出多少个以太币，单位是wei
uint256 public sellPrice;
//买入的汇率,1个以太币，可以买几个代币
uint256 public buyPrice;
/*初始化合约，并且把初始的所有的令牌都给这合约的创建者
* @param initialSupply 所有币的总数
* @param tokenName 代币名称
* @param tokenSymbol 代币符号
*/
function MyAdvancedToken(
uint256 initialSupply,
string tokenName,
string tokenSymbol
) TokenERC20(initialSupply, tokenName, tokenSymbol) public {}
/**
* 私有方法，从指定帐户转出余额
* @param _from address 发送代币的地址
* @param _to address 接受代币的地址
* @param _value uint256 接受代币的数量
*/
function _transfer(address _from, address _to, uint _value) internal {
//避免转帐的地址是0x0
require (_to != 0x0);
//检查发送者是否拥有足够余额
require (balanceOf[_from] > _value);
//检查是否溢出
require (balanceOf[_to] + _value > balanceOf[_to]);
//从发送者减掉发送额
balanceOf[_from] -= _value;
//给接收者加上相同的量
balanceOf[_to] += _value;
//通知任何监听该交易的客户端
Transfer(_from, _to, _value);
}
/**
* 合约拥有者，可以为指定帐户创造一些代币
* @param target address 帐户地址
* @param mintedAmount uint256 增加的金额(单位是wei)
*/
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
//给指定地址增加代币，同时总量也相加
balanceOf[target] += mintedAmount;
totalSupply += mintedAmount;
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}
/**
* 设置买卖价格
*
* 如果你想让ether(或其他代币)为你的代币进行背书,以便可以市场价自动化买卖代币,我们可以这么做。如果要使用浮动的价格，也可以在这里设置
*
* @param newSellPrice 新的卖出价格
* @param newBuyPrice 新的买入价格
*/
function setPrices(uint256 newSellPrice, uint256 newBuyPrice) onlyOwner public {
sellPrice = newSellPrice;
buyPrice = newBuyPrice;
}
/**
* 使用以太币购买代币
*/
function buy() payable public {
uint amount = msg.value / buyPrice;
_transfer(this, msg.sender, amount);
}
/**
* @dev 卖出代币
* @return 要卖出的数量(单位是wei)
*/
function sell(uint256 amount) public {
//检查合约的余额是否充足
require(this.balance >= amount * sellPrice);
_transfer(msg.sender, this, amount);
msg.sender.transfer(amount * sellPrice);
}
} | /**
* 代币增发、
* 代币自动销售和购买、
* 高级代币功能
*/ | NatSpecMultiLine | sell | function sell(uint256 amount) public {
//检查合约的余额是否充足
require(this.balance >= amount * sellPrice);
_transfer(msg.sender, this, amount);
msg.sender.transfer(amount * sellPrice);
}
| /**
* @dev 卖出代币
* @return 要卖出的数量(单位是wei)
*/ | NatSpecMultiLine | v0.4.16+commit.d7661dd9 | MIT | bzzr://90d34bb66329f86d4171331463de8c9f346c57ccd941490586ed719dd3bf2eb1 | {
"func_code_index": [
2201,
2433
]
} | 58,830 |
RoboBitAI | RoboBitAI.sol | 0xcc4f0effdb46729c047064372d0bb196d035896d | Solidity | RoboBitAI | contract RoboBitAI {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 8;
// 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 generates a public event on the blockchain that will notify clients
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constructor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor(
uint256 initialSupply,
string memory tokenName,
string memory tokenSymbol
) public {
totalSupply = 15000000000000000; // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = "RoboBit AI"; // Set the name for display purposes
symbol = "RBAI"; // 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 != address(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;
emit 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 returns (bool success) {
_transfer(msg.sender, _to, _value);
return true;
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` on 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 on 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;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens on 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 memory _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, address(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
emit 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
emit 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 != address(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;
emit 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 | v0.5.15+commit.6a57276f | MIT | bzzr://9c7939f932ee510bdcb56b77153098ef6e8cbc82e6b10e9c811209c242d09e14 | {
"func_code_index": [
1624,
2481
]
} | 58,831 |
||
RoboBitAI | RoboBitAI.sol | 0xcc4f0effdb46729c047064372d0bb196d035896d | Solidity | RoboBitAI | contract RoboBitAI {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 8;
// 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 generates a public event on the blockchain that will notify clients
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constructor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor(
uint256 initialSupply,
string memory tokenName,
string memory tokenSymbol
) public {
totalSupply = 15000000000000000; // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = "RoboBit AI"; // Set the name for display purposes
symbol = "RBAI"; // 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 != address(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;
emit 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 returns (bool success) {
_transfer(msg.sender, _to, _value);
return true;
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` on 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 on 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;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens on 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 memory _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, address(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
emit 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
emit Burn(_from, _value);
return true;
}
} | transfer | function transfer(address _to, uint256 _value) public returns (bool success) {
_transfer(msg.sender, _to, _value);
return true;
}
| /**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/ | NatSpecMultiLine | v0.5.15+commit.6a57276f | MIT | bzzr://9c7939f932ee510bdcb56b77153098ef6e8cbc82e6b10e9c811209c242d09e14 | {
"func_code_index": [
2687,
2844
]
} | 58,832 |
||
RoboBitAI | RoboBitAI.sol | 0xcc4f0effdb46729c047064372d0bb196d035896d | Solidity | RoboBitAI | contract RoboBitAI {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 8;
// 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 generates a public event on the blockchain that will notify clients
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constructor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor(
uint256 initialSupply,
string memory tokenName,
string memory tokenSymbol
) public {
totalSupply = 15000000000000000; // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = "RoboBit AI"; // Set the name for display purposes
symbol = "RBAI"; // 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 != address(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;
emit 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 returns (bool success) {
_transfer(msg.sender, _to, _value);
return true;
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` on 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 on 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;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens on 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 memory _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, address(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
emit 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
emit 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` on behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/ | NatSpecMultiLine | v0.5.15+commit.6a57276f | MIT | bzzr://9c7939f932ee510bdcb56b77153098ef6e8cbc82e6b10e9c811209c242d09e14 | {
"func_code_index": [
3119,
3420
]
} | 58,833 |
||
RoboBitAI | RoboBitAI.sol | 0xcc4f0effdb46729c047064372d0bb196d035896d | Solidity | RoboBitAI | contract RoboBitAI {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 8;
// 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 generates a public event on the blockchain that will notify clients
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constructor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor(
uint256 initialSupply,
string memory tokenName,
string memory tokenSymbol
) public {
totalSupply = 15000000000000000; // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = "RoboBit AI"; // Set the name for display purposes
symbol = "RBAI"; // 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 != address(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;
emit 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 returns (bool success) {
_transfer(msg.sender, _to, _value);
return true;
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` on 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 on 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;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens on 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 memory _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, address(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
emit 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
emit Burn(_from, _value);
return true;
}
} | approve | function approve(address _spender, uint256 _value) public
returns (bool success) {
allowance[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
| /**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens on your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/ | NatSpecMultiLine | v0.5.15+commit.6a57276f | MIT | bzzr://9c7939f932ee510bdcb56b77153098ef6e8cbc82e6b10e9c811209c242d09e14 | {
"func_code_index": [
3684,
3914
]
} | 58,834 |
||
RoboBitAI | RoboBitAI.sol | 0xcc4f0effdb46729c047064372d0bb196d035896d | Solidity | RoboBitAI | contract RoboBitAI {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 8;
// 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 generates a public event on the blockchain that will notify clients
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constructor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor(
uint256 initialSupply,
string memory tokenName,
string memory tokenSymbol
) public {
totalSupply = 15000000000000000; // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = "RoboBit AI"; // Set the name for display purposes
symbol = "RBAI"; // 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 != address(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;
emit 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 returns (bool success) {
_transfer(msg.sender, _to, _value);
return true;
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` on 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 on 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;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens on 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 memory _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, address(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
emit 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
emit Burn(_from, _value);
return true;
}
} | approveAndCall | function approveAndCall(address _spender, uint256 _value, bytes memory _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, address(this), _extraData);
return true;
}
}
| /**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens on 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 | v0.5.15+commit.6a57276f | MIT | bzzr://9c7939f932ee510bdcb56b77153098ef6e8cbc82e6b10e9c811209c242d09e14 | {
"func_code_index": [
4308,
4676
]
} | 58,835 |
||
RoboBitAI | RoboBitAI.sol | 0xcc4f0effdb46729c047064372d0bb196d035896d | Solidity | RoboBitAI | contract RoboBitAI {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 8;
// 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 generates a public event on the blockchain that will notify clients
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constructor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor(
uint256 initialSupply,
string memory tokenName,
string memory tokenSymbol
) public {
totalSupply = 15000000000000000; // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = "RoboBit AI"; // Set the name for display purposes
symbol = "RBAI"; // 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 != address(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;
emit 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 returns (bool success) {
_transfer(msg.sender, _to, _value);
return true;
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` on 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 on 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;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens on 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 memory _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, address(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
emit 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
emit 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
emit Burn(msg.sender, _value);
return true;
}
| /**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/ | NatSpecMultiLine | v0.5.15+commit.6a57276f | MIT | bzzr://9c7939f932ee510bdcb56b77153098ef6e8cbc82e6b10e9c811209c242d09e14 | {
"func_code_index": [
4846,
5225
]
} | 58,836 |
||
RoboBitAI | RoboBitAI.sol | 0xcc4f0effdb46729c047064372d0bb196d035896d | Solidity | RoboBitAI | contract RoboBitAI {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 8;
// 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 generates a public event on the blockchain that will notify clients
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constructor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
constructor(
uint256 initialSupply,
string memory tokenName,
string memory tokenSymbol
) public {
totalSupply = 15000000000000000; // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name = "RoboBit AI"; // Set the name for display purposes
symbol = "RBAI"; // 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 != address(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;
emit 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 returns (bool success) {
_transfer(msg.sender, _to, _value);
return true;
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` on 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 on 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;
emit Approval(msg.sender, _spender, _value);
return true;
}
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens on 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 memory _extraData)
public
returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, address(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
emit 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
emit 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
emit 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 | v0.5.15+commit.6a57276f | MIT | bzzr://9c7939f932ee510bdcb56b77153098ef6e8cbc82e6b10e9c811209c242d09e14 | {
"func_code_index": [
5483,
6099
]
} | 58,837 |
||
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IVaultsCore | interface IVaultsCore {
event Opened(uint256 indexed vaultId, address indexed collateralType, address indexed owner);
event Deposited(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Withdrawn(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Borrowed(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Repaid(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Liquidated(
uint256 indexed vaultId,
uint256 debtRepaid,
uint256 collateralLiquidated,
address indexed owner,
address indexed sender
);
event CumulativeRateUpdated(
address indexed collateralType,
uint256 elapsedTime,
uint256 newCumulativeRate
); //cumulative interest rate from deployment time T0
event InsurancePaid(uint256 indexed vaultId, uint256 insuranceAmount, address indexed sender);
function a() external view returns (IAddressProvider);
function deposit(address _collateralType, uint256 _amount) external;
function withdraw(uint256 _vaultId, uint256 _amount) external;
function withdrawAll(uint256 _vaultId) external;
function borrow(uint256 _vaultId, uint256 _amount) external;
function repayAll(uint256 _vaultId) external;
function repay(uint256 _vaultId, uint256 _amount) external;
function liquidate(uint256 _vaultId) external;
//Read only
function availableIncome() external view returns (uint256);
function cumulativeRates(address _collateralType) external view returns (uint256);
function lastRefresh(address _collateralType) external view returns (uint256);
//Refresh
function initializeRates(address _collateralType) external;
function refresh() external;
function refreshCollateral(address collateralType) external;
//upgrade
function upgrade(address _newVaultsCore) external;
} | // | LineComment | availableIncome | function availableIncome() external view returns (uint256);
| //Read only | LineComment | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
1385,
1446
]
} | 58,838 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IVaultsCore | interface IVaultsCore {
event Opened(uint256 indexed vaultId, address indexed collateralType, address indexed owner);
event Deposited(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Withdrawn(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Borrowed(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Repaid(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Liquidated(
uint256 indexed vaultId,
uint256 debtRepaid,
uint256 collateralLiquidated,
address indexed owner,
address indexed sender
);
event CumulativeRateUpdated(
address indexed collateralType,
uint256 elapsedTime,
uint256 newCumulativeRate
); //cumulative interest rate from deployment time T0
event InsurancePaid(uint256 indexed vaultId, uint256 insuranceAmount, address indexed sender);
function a() external view returns (IAddressProvider);
function deposit(address _collateralType, uint256 _amount) external;
function withdraw(uint256 _vaultId, uint256 _amount) external;
function withdrawAll(uint256 _vaultId) external;
function borrow(uint256 _vaultId, uint256 _amount) external;
function repayAll(uint256 _vaultId) external;
function repay(uint256 _vaultId, uint256 _amount) external;
function liquidate(uint256 _vaultId) external;
//Read only
function availableIncome() external view returns (uint256);
function cumulativeRates(address _collateralType) external view returns (uint256);
function lastRefresh(address _collateralType) external view returns (uint256);
//Refresh
function initializeRates(address _collateralType) external;
function refresh() external;
function refreshCollateral(address collateralType) external;
//upgrade
function upgrade(address _newVaultsCore) external;
} | // | LineComment | initializeRates | function initializeRates(address _collateralType) external;
| //Refresh | LineComment | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
1628,
1689
]
} | 58,839 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IVaultsCore | interface IVaultsCore {
event Opened(uint256 indexed vaultId, address indexed collateralType, address indexed owner);
event Deposited(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Withdrawn(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Borrowed(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Repaid(uint256 indexed vaultId, uint256 amount, address indexed sender);
event Liquidated(
uint256 indexed vaultId,
uint256 debtRepaid,
uint256 collateralLiquidated,
address indexed owner,
address indexed sender
);
event CumulativeRateUpdated(
address indexed collateralType,
uint256 elapsedTime,
uint256 newCumulativeRate
); //cumulative interest rate from deployment time T0
event InsurancePaid(uint256 indexed vaultId, uint256 insuranceAmount, address indexed sender);
function a() external view returns (IAddressProvider);
function deposit(address _collateralType, uint256 _amount) external;
function withdraw(uint256 _vaultId, uint256 _amount) external;
function withdrawAll(uint256 _vaultId) external;
function borrow(uint256 _vaultId, uint256 _amount) external;
function repayAll(uint256 _vaultId) external;
function repay(uint256 _vaultId, uint256 _amount) external;
function liquidate(uint256 _vaultId) external;
//Read only
function availableIncome() external view returns (uint256);
function cumulativeRates(address _collateralType) external view returns (uint256);
function lastRefresh(address _collateralType) external view returns (uint256);
//Refresh
function initializeRates(address _collateralType) external;
function refresh() external;
function refreshCollateral(address collateralType) external;
//upgrade
function upgrade(address _newVaultsCore) external;
} | // | LineComment | upgrade | function upgrade(address _newVaultsCore) external;
| //upgrade | LineComment | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
1799,
1851
]
} | 58,840 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | totalSupply | function totalSupply() external view returns (uint256);
| /**
* @dev Returns the amount of tokens in existence.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
90,
149
]
} | 58,841 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | balanceOf | function balanceOf(address account) external view returns (uint256);
| /**
* @dev Returns the amount of tokens owned by `account`.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
228,
300
]
} | 58,842 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | transfer | function transfer(address recipient, uint256 amount) external returns (bool);
| /**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
516,
597
]
} | 58,843 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | allowance | function allowance(address owner, address spender) external view returns (uint256);
| /**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
868,
955
]
} | 58,844 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | approve | function approve(address spender, uint256 amount) external returns (bool);
| /**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
1604,
1682
]
} | 58,845 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IERC20 | interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
} | /**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/ | NatSpecMultiLine | transferFrom | function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
| /**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/ | NatSpecMultiLine | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
1985,
2086
]
} | 58,846 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IRatesManager | interface IRatesManager {
function a() external view returns (IAddressProvider);
//current annualized borrow rate
function annualizedBorrowRate(uint256 _currentBorrowRate) external pure returns (uint256);
//uses current cumulative rate to calculate totalDebt based on baseDebt at time T0
function calculateDebt(uint256 _baseDebt, uint256 _cumulativeRate) external pure returns (uint256);
//uses current cumulative rate to calculate baseDebt at time T0
function calculateBaseDebt(uint256 _debt, uint256 _cumulativeRate) external pure returns (uint256);
//calculate a new cumulative rate
function calculateCumulativeRate(
uint256 _borrowRate,
uint256 _cumulativeRate,
uint256 _timeElapsed
) external view returns (uint256);
} | // | LineComment | annualizedBorrowRate | function annualizedBorrowRate(uint256 _currentBorrowRate) external pure returns (uint256);
| //current annualized borrow rate | LineComment | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
119,
211
]
} | 58,847 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IRatesManager | interface IRatesManager {
function a() external view returns (IAddressProvider);
//current annualized borrow rate
function annualizedBorrowRate(uint256 _currentBorrowRate) external pure returns (uint256);
//uses current cumulative rate to calculate totalDebt based on baseDebt at time T0
function calculateDebt(uint256 _baseDebt, uint256 _cumulativeRate) external pure returns (uint256);
//uses current cumulative rate to calculate baseDebt at time T0
function calculateBaseDebt(uint256 _debt, uint256 _cumulativeRate) external pure returns (uint256);
//calculate a new cumulative rate
function calculateCumulativeRate(
uint256 _borrowRate,
uint256 _cumulativeRate,
uint256 _timeElapsed
) external view returns (uint256);
} | // | LineComment | calculateDebt | function calculateDebt(uint256 _baseDebt, uint256 _cumulativeRate) external pure returns (uint256);
| //uses current cumulative rate to calculate totalDebt based on baseDebt at time T0 | LineComment | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
298,
399
]
} | 58,848 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IRatesManager | interface IRatesManager {
function a() external view returns (IAddressProvider);
//current annualized borrow rate
function annualizedBorrowRate(uint256 _currentBorrowRate) external pure returns (uint256);
//uses current cumulative rate to calculate totalDebt based on baseDebt at time T0
function calculateDebt(uint256 _baseDebt, uint256 _cumulativeRate) external pure returns (uint256);
//uses current cumulative rate to calculate baseDebt at time T0
function calculateBaseDebt(uint256 _debt, uint256 _cumulativeRate) external pure returns (uint256);
//calculate a new cumulative rate
function calculateCumulativeRate(
uint256 _borrowRate,
uint256 _cumulativeRate,
uint256 _timeElapsed
) external view returns (uint256);
} | // | LineComment | calculateBaseDebt | function calculateBaseDebt(uint256 _debt, uint256 _cumulativeRate) external pure returns (uint256);
| //uses current cumulative rate to calculate baseDebt at time T0 | LineComment | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
467,
568
]
} | 58,849 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IRatesManager | interface IRatesManager {
function a() external view returns (IAddressProvider);
//current annualized borrow rate
function annualizedBorrowRate(uint256 _currentBorrowRate) external pure returns (uint256);
//uses current cumulative rate to calculate totalDebt based on baseDebt at time T0
function calculateDebt(uint256 _baseDebt, uint256 _cumulativeRate) external pure returns (uint256);
//uses current cumulative rate to calculate baseDebt at time T0
function calculateBaseDebt(uint256 _debt, uint256 _cumulativeRate) external pure returns (uint256);
//calculate a new cumulative rate
function calculateCumulativeRate(
uint256 _borrowRate,
uint256 _cumulativeRate,
uint256 _timeElapsed
) external view returns (uint256);
} | // | LineComment | calculateCumulativeRate | function calculateCumulativeRate(
uint256 _borrowRate,
uint256 _cumulativeRate,
uint256 _timeElapsed
) external view returns (uint256);
| //calculate a new cumulative rate | LineComment | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
606,
757
]
} | 58,850 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IVaultsDataProvider | interface IVaultsDataProvider {
struct Vault {
// borrowedType support USDX / PAR
address collateralType;
address owner;
uint256 collateralBalance;
uint256 baseDebt;
uint256 createdAt;
}
function a() external view returns (IAddressProvider);
// Read
function baseDebt(address _collateralType) external view returns (uint256);
function vaultCount() external view returns (uint256);
function vaults(uint256 _id) external view returns (Vault memory);
function vaultOwner(uint256 _id) external view returns (address);
function vaultCollateralType(uint256 _id) external view returns (address);
function vaultCollateralBalance(uint256 _id) external view returns (uint256);
function vaultBaseDebt(uint256 _id) external view returns (uint256);
function vaultId(address _collateralType, address _owner) external view returns (uint256);
function vaultExists(uint256 _id) external view returns (bool);
function vaultDebt(uint256 _vaultId) external view returns (uint256);
function debt() external view returns (uint256);
function collateralDebt(address _collateralType) external view returns (uint256);
//Write
function createVault(address _collateralType, address _owner) external returns (uint256);
function setCollateralBalance(uint256 _id, uint256 _balance) external;
function setBaseDebt(uint256 _id, uint256 _newBaseDebt) external;
} | // | LineComment | baseDebt | function baseDebt(address _collateralType) external view returns (uint256);
| // Read | LineComment | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
284,
361
]
} | 58,851 |
|
AddressProvider | AddressProvider.sol | 0x6fae125de41c03fa7d917ccfa17ba54ef4feb014 | Solidity | IVaultsDataProvider | interface IVaultsDataProvider {
struct Vault {
// borrowedType support USDX / PAR
address collateralType;
address owner;
uint256 collateralBalance;
uint256 baseDebt;
uint256 createdAt;
}
function a() external view returns (IAddressProvider);
// Read
function baseDebt(address _collateralType) external view returns (uint256);
function vaultCount() external view returns (uint256);
function vaults(uint256 _id) external view returns (Vault memory);
function vaultOwner(uint256 _id) external view returns (address);
function vaultCollateralType(uint256 _id) external view returns (address);
function vaultCollateralBalance(uint256 _id) external view returns (uint256);
function vaultBaseDebt(uint256 _id) external view returns (uint256);
function vaultId(address _collateralType, address _owner) external view returns (uint256);
function vaultExists(uint256 _id) external view returns (bool);
function vaultDebt(uint256 _vaultId) external view returns (uint256);
function debt() external view returns (uint256);
function collateralDebt(address _collateralType) external view returns (uint256);
//Write
function createVault(address _collateralType, address _owner) external returns (uint256);
function setCollateralBalance(uint256 _id, uint256 _balance) external;
function setBaseDebt(uint256 _id, uint256 _newBaseDebt) external;
} | // | LineComment | createVault | function createVault(address _collateralType, address _owner) external returns (uint256);
| //Write | LineComment | v0.6.12+commit.27d51765 | MIT | {
"func_code_index": [
1172,
1263
]
} | 58,852 |
|
GasToken | GasToken.sol | 0xde299038830f2bc6f20c8e9603586f4438e93ad6 | Solidity | GasToken | contract GasToken is ERC20 {
// Coin Defaults
string public name = "Vether Gas Coin";
string public symbol = "VGC";
uint256 public decimals = 18;
uint256 public override totalSupply = (2 ** 256) - 1;
address public burnAddress;
// Mapping
mapping(address => uint256) public override balanceOf;
mapping(address => mapping(address => uint256)) public override allowance;
mapping(uint => string) public gasStorage;
// Events
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint256 value);
// Minting event
constructor() public{
burnAddress = 0x0111011001100001011011000111010101100101;
balanceOf[msg.sender] = totalSupply;
emit Transfer(address(0), msg.sender, totalSupply);
}
// ERC20
function transfer(address to, uint256 value) public override returns (bool success) {
_transfer(msg.sender, to, value);
return true;
}
// ERC20
function approve(address spender, uint256 value) public override returns (bool success) {
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
// ERC20
function transferFrom(address from, address to, uint256 value) public override returns (bool success) {
require(value <= allowance[from][msg.sender]);
allowance[from][msg.sender] -= value;
_transfer(from, to, value);
return true;
}
// Transfer function which includes the gas storage
function _transfer(address _from, address _to, uint _value) internal {
require(balanceOf[_from] >= _value);
require(balanceOf[_to] + _value >= balanceOf[_to]);
balanceOf[_from] = balanceOf[_from] - _value;
balanceOf[_to] = balanceOf[_to] + _value;
if (_to == burnAddress) {
for(uint i = 0; i < 100; i++){
gasStorage[i]="GASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGE";
// 8.7kb total
}
}
emit Transfer(_from, _to, _value);
}
function resetGas() public {
for(uint i = 0; i < 100; i++){
gasStorage[i]="0";
}
}
} | // Token Contract | LineComment | transfer | function transfer(address to, uint256 value) public override returns (bool success) {
_transfer(msg.sender, to, value);
return true;
}
| // ERC20 | LineComment | v0.6.4+commit.1dca32f3 | None | ipfs://1eb08e950396fa69ad945e78ff711fc515475f961c1983f13c5e85293882f828 | {
"func_code_index": [
899,
1061
]
} | 58,853 |
GasToken | GasToken.sol | 0xde299038830f2bc6f20c8e9603586f4438e93ad6 | Solidity | GasToken | contract GasToken is ERC20 {
// Coin Defaults
string public name = "Vether Gas Coin";
string public symbol = "VGC";
uint256 public decimals = 18;
uint256 public override totalSupply = (2 ** 256) - 1;
address public burnAddress;
// Mapping
mapping(address => uint256) public override balanceOf;
mapping(address => mapping(address => uint256)) public override allowance;
mapping(uint => string) public gasStorage;
// Events
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint256 value);
// Minting event
constructor() public{
burnAddress = 0x0111011001100001011011000111010101100101;
balanceOf[msg.sender] = totalSupply;
emit Transfer(address(0), msg.sender, totalSupply);
}
// ERC20
function transfer(address to, uint256 value) public override returns (bool success) {
_transfer(msg.sender, to, value);
return true;
}
// ERC20
function approve(address spender, uint256 value) public override returns (bool success) {
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
// ERC20
function transferFrom(address from, address to, uint256 value) public override returns (bool success) {
require(value <= allowance[from][msg.sender]);
allowance[from][msg.sender] -= value;
_transfer(from, to, value);
return true;
}
// Transfer function which includes the gas storage
function _transfer(address _from, address _to, uint _value) internal {
require(balanceOf[_from] >= _value);
require(balanceOf[_to] + _value >= balanceOf[_to]);
balanceOf[_from] = balanceOf[_from] - _value;
balanceOf[_to] = balanceOf[_to] + _value;
if (_to == burnAddress) {
for(uint i = 0; i < 100; i++){
gasStorage[i]="GASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGE";
// 8.7kb total
}
}
emit Transfer(_from, _to, _value);
}
function resetGas() public {
for(uint i = 0; i < 100; i++){
gasStorage[i]="0";
}
}
} | // Token Contract | LineComment | approve | function approve(address spender, uint256 value) public override returns (bool success) {
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
| // ERC20 | LineComment | v0.6.4+commit.1dca32f3 | None | ipfs://1eb08e950396fa69ad945e78ff711fc515475f961c1983f13c5e85293882f828 | {
"func_code_index": [
1078,
1302
]
} | 58,854 |
GasToken | GasToken.sol | 0xde299038830f2bc6f20c8e9603586f4438e93ad6 | Solidity | GasToken | contract GasToken is ERC20 {
// Coin Defaults
string public name = "Vether Gas Coin";
string public symbol = "VGC";
uint256 public decimals = 18;
uint256 public override totalSupply = (2 ** 256) - 1;
address public burnAddress;
// Mapping
mapping(address => uint256) public override balanceOf;
mapping(address => mapping(address => uint256)) public override allowance;
mapping(uint => string) public gasStorage;
// Events
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint256 value);
// Minting event
constructor() public{
burnAddress = 0x0111011001100001011011000111010101100101;
balanceOf[msg.sender] = totalSupply;
emit Transfer(address(0), msg.sender, totalSupply);
}
// ERC20
function transfer(address to, uint256 value) public override returns (bool success) {
_transfer(msg.sender, to, value);
return true;
}
// ERC20
function approve(address spender, uint256 value) public override returns (bool success) {
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
// ERC20
function transferFrom(address from, address to, uint256 value) public override returns (bool success) {
require(value <= allowance[from][msg.sender]);
allowance[from][msg.sender] -= value;
_transfer(from, to, value);
return true;
}
// Transfer function which includes the gas storage
function _transfer(address _from, address _to, uint _value) internal {
require(balanceOf[_from] >= _value);
require(balanceOf[_to] + _value >= balanceOf[_to]);
balanceOf[_from] = balanceOf[_from] - _value;
balanceOf[_to] = balanceOf[_to] + _value;
if (_to == burnAddress) {
for(uint i = 0; i < 100; i++){
gasStorage[i]="GASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGE";
// 8.7kb total
}
}
emit Transfer(_from, _to, _value);
}
function resetGas() public {
for(uint i = 0; i < 100; i++){
gasStorage[i]="0";
}
}
} | // Token Contract | LineComment | transferFrom | function transferFrom(address from, address to, uint256 value) public override returns (bool success) {
require(value <= allowance[from][msg.sender]);
allowance[from][msg.sender] -= value;
_transfer(from, to, value);
return true;
}
| // ERC20 | LineComment | v0.6.4+commit.1dca32f3 | None | ipfs://1eb08e950396fa69ad945e78ff711fc515475f961c1983f13c5e85293882f828 | {
"func_code_index": [
1319,
1596
]
} | 58,855 |
GasToken | GasToken.sol | 0xde299038830f2bc6f20c8e9603586f4438e93ad6 | Solidity | GasToken | contract GasToken is ERC20 {
// Coin Defaults
string public name = "Vether Gas Coin";
string public symbol = "VGC";
uint256 public decimals = 18;
uint256 public override totalSupply = (2 ** 256) - 1;
address public burnAddress;
// Mapping
mapping(address => uint256) public override balanceOf;
mapping(address => mapping(address => uint256)) public override allowance;
mapping(uint => string) public gasStorage;
// Events
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint256 value);
// Minting event
constructor() public{
burnAddress = 0x0111011001100001011011000111010101100101;
balanceOf[msg.sender] = totalSupply;
emit Transfer(address(0), msg.sender, totalSupply);
}
// ERC20
function transfer(address to, uint256 value) public override returns (bool success) {
_transfer(msg.sender, to, value);
return true;
}
// ERC20
function approve(address spender, uint256 value) public override returns (bool success) {
allowance[msg.sender][spender] = value;
emit Approval(msg.sender, spender, value);
return true;
}
// ERC20
function transferFrom(address from, address to, uint256 value) public override returns (bool success) {
require(value <= allowance[from][msg.sender]);
allowance[from][msg.sender] -= value;
_transfer(from, to, value);
return true;
}
// Transfer function which includes the gas storage
function _transfer(address _from, address _to, uint _value) internal {
require(balanceOf[_from] >= _value);
require(balanceOf[_to] + _value >= balanceOf[_to]);
balanceOf[_from] = balanceOf[_from] - _value;
balanceOf[_to] = balanceOf[_to] + _value;
if (_to == burnAddress) {
for(uint i = 0; i < 100; i++){
gasStorage[i]="GASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGE";
// 8.7kb total
}
}
emit Transfer(_from, _to, _value);
}
function resetGas() public {
for(uint i = 0; i < 100; i++){
gasStorage[i]="0";
}
}
} | // Token Contract | LineComment | _transfer | function _transfer(address _from, address _to, uint _value) internal {
require(balanceOf[_from] >= _value);
require(balanceOf[_to] + _value >= balanceOf[_to]);
balanceOf[_from] = balanceOf[_from] - _value;
balanceOf[_to] = balanceOf[_to] + _value;
if (_to == burnAddress) {
for(uint i = 0; i < 100; i++){
gasStorage[i]="GASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGEGASSTORAGEGASSTORAGEGASTORAGE";
// 8.7kb total
}
}
emit Transfer(_from, _to, _value);
}
| // Transfer function which includes the gas storage | LineComment | v0.6.4+commit.1dca32f3 | None | ipfs://1eb08e950396fa69ad945e78ff711fc515475f961c1983f13c5e85293882f828 | {
"func_code_index": [
1656,
2277
]
} | 58,856 |
LiquidityMiningFactory | contracts\liquidity-mining\LiquidityMiningFactory.sol | 0x9df4e915d093f03169270857cf9a0a5d1ef26388 | Solidity | LiquidityMiningFactory | contract LiquidityMiningFactory is ILiquidityMiningFactory {
// liquidity mining contract implementation address
address public liquidityMiningImplementationAddress;
// liquidity mining default extension
address public override liquidityMiningDefaultExtension;
// double proxy address of the linked DFO
address public _doubleProxy;
// linked DFO exit fee
uint256 private _feePercentage;
// liquidity mining collection uri
string public liquidityFarmTokenCollectionURI;
// liquidity mining farm token uri
string public liquidityFarmTokenURI;
// event that tracks liquidity mining contracts deployed
event LiquidityMiningDeployed(address indexed liquidityMiningAddress, address indexed sender, bytes liquidityMiningInitResultData);
// event that tracks logic contract address change
event LiquidityMiningLogicSet(address indexed newAddress);
// event that tracks default extension contract address change
event LiquidityMiningDefaultExtensionSet(address indexed newAddress);
// event that tracks wallet changes
event FeePercentageSet(uint256 newFeePercentage);
constructor(address doubleProxy, address _liquidityMiningImplementationAddress, address _liquidityMiningDefaultExtension, uint256 feePercentage, string memory liquidityFarmTokenCollectionUri, string memory liquidityFarmTokenUri) {
_doubleProxy = doubleProxy;
liquidityFarmTokenCollectionURI = liquidityFarmTokenCollectionUri;
liquidityFarmTokenURI = liquidityFarmTokenUri;
emit LiquidityMiningLogicSet(liquidityMiningImplementationAddress = _liquidityMiningImplementationAddress);
emit LiquidityMiningDefaultExtensionSet(liquidityMiningDefaultExtension = _liquidityMiningDefaultExtension);
emit FeePercentageSet(_feePercentage = feePercentage);
}
/** PUBLIC METHODS */
function feePercentageInfo() public override view returns (uint256, address) {
return (_feePercentage, IMVDProxy(IDoubleProxy(_doubleProxy).proxy()).getMVDWalletAddress());
}
/** @dev allows the DFO to update the double proxy address.
* @param newDoubleProxy new double proxy address.
*/
function setDoubleProxy(address newDoubleProxy) public onlyDFO {
_doubleProxy = newDoubleProxy;
}
/** @dev change the fee percentage
* @param feePercentage new fee percentage.
*/
function updateFeePercentage(uint256 feePercentage) public onlyDFO {
emit FeePercentageSet(_feePercentage = feePercentage);
}
/** @dev allows the factory owner to update the logic contract address.
* @param _liquidityMiningImplementationAddress new liquidity mining implementation address.
*/
function updateLogicAddress(address _liquidityMiningImplementationAddress) public onlyDFO {
emit LiquidityMiningLogicSet(liquidityMiningImplementationAddress = _liquidityMiningImplementationAddress);
}
/** @dev allows the factory owner to update the default extension contract address.
* @param _liquidityMiningDefaultExtensionAddress new liquidity mining extension address.
*/
function updateDefaultExtensionAddress(address _liquidityMiningDefaultExtensionAddress) public onlyDFO {
emit LiquidityMiningDefaultExtensionSet(liquidityMiningDefaultExtension = _liquidityMiningDefaultExtensionAddress);
}
/** @dev allows the factory owner to update the liquidity farm token collection uri.
* @param liquidityFarmTokenCollectionUri new liquidity farm token collection uri.
*/
function updateLiquidityFarmTokenCollectionURI(string memory liquidityFarmTokenCollectionUri) public onlyDFO {
liquidityFarmTokenCollectionURI = liquidityFarmTokenCollectionUri;
}
/** @dev allows the factory owner to update the liquidity farm token collection uri.
* @param liquidityFarmTokenUri new liquidity farm token collection uri.
*/
function updateLiquidityFarmTokenURI(string memory liquidityFarmTokenUri) public onlyDFO {
liquidityFarmTokenURI = liquidityFarmTokenUri;
}
/** @dev returns the liquidity farm token collection uri.
* @return liquidity farm token collection uri.
*/
function getLiquidityFarmTokenCollectionURI() public override view returns (string memory) {
return liquidityFarmTokenCollectionURI;
}
/** @dev returns the liquidity farm token uri.
* @return liquidity farm token uri.
*/
function getLiquidityFarmTokenURI() public override view returns (string memory) {
return liquidityFarmTokenURI;
}
/** @dev utlity method to clone default extension
* @return clonedExtension the address of the actually-cloned liquidity mining extension
*/
function cloneLiquidityMiningDefaultExtension() public override returns(address clonedExtension) {
emit ExtensionCloned(clonedExtension = _clone(liquidityMiningDefaultExtension));
}
/** @dev this function deploys a new LiquidityMining contract and calls the encoded function passed as data.
* @param data encoded initialize function for the liquidity mining contract (check LiquidityMining contract code).
* @return contractAddress new liquidity mining contract address.
* @return initResultData new liquidity mining contract call result.
*/
function deploy(bytes memory data) public returns (address contractAddress, bytes memory initResultData) {
initResultData = _call(contractAddress = _clone(liquidityMiningImplementationAddress), data);
emit LiquidityMiningDeployed(contractAddress, msg.sender, initResultData);
}
/** PRIVATE METHODS */
/** @dev clones the input contract address and returns the copied contract address.
* @param original address of the original contract.
* @return copy copied contract address.
*/
function _clone(address original) private returns (address copy) {
assembly {
mstore(
0,
or(
0x5880730000000000000000000000000000000000000000803b80938091923cF3,
mul(original, 0x1000000000000000000)
)
)
copy := create(0, 0, 32)
switch extcodesize(copy)
case 0 {
invalid()
}
}
}
/** @dev calls the contract at the given location using the given payload and returns the returnData.
* @param location location to call.
* @param payload call payload.
* @return returnData call return data.
*/
function _call(address location, bytes memory payload) private returns(bytes memory returnData) {
assembly {
let result := call(gas(), location, 0, add(payload, 0x20), mload(payload), 0, 0)
let size := returndatasize()
returnData := mload(0x40)
mstore(returnData, size)
let returnDataPayloadStart := add(returnData, 0x20)
returndatacopy(returnDataPayloadStart, 0, size)
mstore(0x40, add(returnDataPayloadStart, size))
switch result case 0 {revert(returnDataPayloadStart, size)}
}
}
/** @dev onlyDFO modifier used to check for unauthorized accesses. */
modifier onlyDFO() {
require(IMVDFunctionalitiesManager(IMVDProxy(IDoubleProxy(_doubleProxy).proxy()).getMVDFunctionalitiesManagerAddress()).isAuthorizedFunctionality(msg.sender), "Unauthorized.");
_;
}
} | feePercentageInfo | function feePercentageInfo() public override view returns (uint256, address) {
return (_feePercentage, IMVDProxy(IDoubleProxy(_doubleProxy).proxy()).getMVDWalletAddress());
}
| /** PUBLIC METHODS */ | NatSpecMultiLine | v0.7.6+commit.7338295f | MIT | ipfs://f058c01d1a28d1984b20f4a56b451c5333cbb324fde2ceba602ca7e5b331c64a | {
"func_code_index": [
1906,
2099
]
} | 58,857 |
||
LiquidityMiningFactory | contracts\liquidity-mining\LiquidityMiningFactory.sol | 0x9df4e915d093f03169270857cf9a0a5d1ef26388 | Solidity | LiquidityMiningFactory | contract LiquidityMiningFactory is ILiquidityMiningFactory {
// liquidity mining contract implementation address
address public liquidityMiningImplementationAddress;
// liquidity mining default extension
address public override liquidityMiningDefaultExtension;
// double proxy address of the linked DFO
address public _doubleProxy;
// linked DFO exit fee
uint256 private _feePercentage;
// liquidity mining collection uri
string public liquidityFarmTokenCollectionURI;
// liquidity mining farm token uri
string public liquidityFarmTokenURI;
// event that tracks liquidity mining contracts deployed
event LiquidityMiningDeployed(address indexed liquidityMiningAddress, address indexed sender, bytes liquidityMiningInitResultData);
// event that tracks logic contract address change
event LiquidityMiningLogicSet(address indexed newAddress);
// event that tracks default extension contract address change
event LiquidityMiningDefaultExtensionSet(address indexed newAddress);
// event that tracks wallet changes
event FeePercentageSet(uint256 newFeePercentage);
constructor(address doubleProxy, address _liquidityMiningImplementationAddress, address _liquidityMiningDefaultExtension, uint256 feePercentage, string memory liquidityFarmTokenCollectionUri, string memory liquidityFarmTokenUri) {
_doubleProxy = doubleProxy;
liquidityFarmTokenCollectionURI = liquidityFarmTokenCollectionUri;
liquidityFarmTokenURI = liquidityFarmTokenUri;
emit LiquidityMiningLogicSet(liquidityMiningImplementationAddress = _liquidityMiningImplementationAddress);
emit LiquidityMiningDefaultExtensionSet(liquidityMiningDefaultExtension = _liquidityMiningDefaultExtension);
emit FeePercentageSet(_feePercentage = feePercentage);
}
/** PUBLIC METHODS */
function feePercentageInfo() public override view returns (uint256, address) {
return (_feePercentage, IMVDProxy(IDoubleProxy(_doubleProxy).proxy()).getMVDWalletAddress());
}
/** @dev allows the DFO to update the double proxy address.
* @param newDoubleProxy new double proxy address.
*/
function setDoubleProxy(address newDoubleProxy) public onlyDFO {
_doubleProxy = newDoubleProxy;
}
/** @dev change the fee percentage
* @param feePercentage new fee percentage.
*/
function updateFeePercentage(uint256 feePercentage) public onlyDFO {
emit FeePercentageSet(_feePercentage = feePercentage);
}
/** @dev allows the factory owner to update the logic contract address.
* @param _liquidityMiningImplementationAddress new liquidity mining implementation address.
*/
function updateLogicAddress(address _liquidityMiningImplementationAddress) public onlyDFO {
emit LiquidityMiningLogicSet(liquidityMiningImplementationAddress = _liquidityMiningImplementationAddress);
}
/** @dev allows the factory owner to update the default extension contract address.
* @param _liquidityMiningDefaultExtensionAddress new liquidity mining extension address.
*/
function updateDefaultExtensionAddress(address _liquidityMiningDefaultExtensionAddress) public onlyDFO {
emit LiquidityMiningDefaultExtensionSet(liquidityMiningDefaultExtension = _liquidityMiningDefaultExtensionAddress);
}
/** @dev allows the factory owner to update the liquidity farm token collection uri.
* @param liquidityFarmTokenCollectionUri new liquidity farm token collection uri.
*/
function updateLiquidityFarmTokenCollectionURI(string memory liquidityFarmTokenCollectionUri) public onlyDFO {
liquidityFarmTokenCollectionURI = liquidityFarmTokenCollectionUri;
}
/** @dev allows the factory owner to update the liquidity farm token collection uri.
* @param liquidityFarmTokenUri new liquidity farm token collection uri.
*/
function updateLiquidityFarmTokenURI(string memory liquidityFarmTokenUri) public onlyDFO {
liquidityFarmTokenURI = liquidityFarmTokenUri;
}
/** @dev returns the liquidity farm token collection uri.
* @return liquidity farm token collection uri.
*/
function getLiquidityFarmTokenCollectionURI() public override view returns (string memory) {
return liquidityFarmTokenCollectionURI;
}
/** @dev returns the liquidity farm token uri.
* @return liquidity farm token uri.
*/
function getLiquidityFarmTokenURI() public override view returns (string memory) {
return liquidityFarmTokenURI;
}
/** @dev utlity method to clone default extension
* @return clonedExtension the address of the actually-cloned liquidity mining extension
*/
function cloneLiquidityMiningDefaultExtension() public override returns(address clonedExtension) {
emit ExtensionCloned(clonedExtension = _clone(liquidityMiningDefaultExtension));
}
/** @dev this function deploys a new LiquidityMining contract and calls the encoded function passed as data.
* @param data encoded initialize function for the liquidity mining contract (check LiquidityMining contract code).
* @return contractAddress new liquidity mining contract address.
* @return initResultData new liquidity mining contract call result.
*/
function deploy(bytes memory data) public returns (address contractAddress, bytes memory initResultData) {
initResultData = _call(contractAddress = _clone(liquidityMiningImplementationAddress), data);
emit LiquidityMiningDeployed(contractAddress, msg.sender, initResultData);
}
/** PRIVATE METHODS */
/** @dev clones the input contract address and returns the copied contract address.
* @param original address of the original contract.
* @return copy copied contract address.
*/
function _clone(address original) private returns (address copy) {
assembly {
mstore(
0,
or(
0x5880730000000000000000000000000000000000000000803b80938091923cF3,
mul(original, 0x1000000000000000000)
)
)
copy := create(0, 0, 32)
switch extcodesize(copy)
case 0 {
invalid()
}
}
}
/** @dev calls the contract at the given location using the given payload and returns the returnData.
* @param location location to call.
* @param payload call payload.
* @return returnData call return data.
*/
function _call(address location, bytes memory payload) private returns(bytes memory returnData) {
assembly {
let result := call(gas(), location, 0, add(payload, 0x20), mload(payload), 0, 0)
let size := returndatasize()
returnData := mload(0x40)
mstore(returnData, size)
let returnDataPayloadStart := add(returnData, 0x20)
returndatacopy(returnDataPayloadStart, 0, size)
mstore(0x40, add(returnDataPayloadStart, size))
switch result case 0 {revert(returnDataPayloadStart, size)}
}
}
/** @dev onlyDFO modifier used to check for unauthorized accesses. */
modifier onlyDFO() {
require(IMVDFunctionalitiesManager(IMVDProxy(IDoubleProxy(_doubleProxy).proxy()).getMVDFunctionalitiesManagerAddress()).isAuthorizedFunctionality(msg.sender), "Unauthorized.");
_;
}
} | setDoubleProxy | function setDoubleProxy(address newDoubleProxy) public onlyDFO {
_doubleProxy = newDoubleProxy;
}
| /** @dev allows the DFO to update the double proxy address.
* @param newDoubleProxy new double proxy address.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | MIT | ipfs://f058c01d1a28d1984b20f4a56b451c5333cbb324fde2ceba602ca7e5b331c64a | {
"func_code_index": [
2232,
2348
]
} | 58,858 |
||
LiquidityMiningFactory | contracts\liquidity-mining\LiquidityMiningFactory.sol | 0x9df4e915d093f03169270857cf9a0a5d1ef26388 | Solidity | LiquidityMiningFactory | contract LiquidityMiningFactory is ILiquidityMiningFactory {
// liquidity mining contract implementation address
address public liquidityMiningImplementationAddress;
// liquidity mining default extension
address public override liquidityMiningDefaultExtension;
// double proxy address of the linked DFO
address public _doubleProxy;
// linked DFO exit fee
uint256 private _feePercentage;
// liquidity mining collection uri
string public liquidityFarmTokenCollectionURI;
// liquidity mining farm token uri
string public liquidityFarmTokenURI;
// event that tracks liquidity mining contracts deployed
event LiquidityMiningDeployed(address indexed liquidityMiningAddress, address indexed sender, bytes liquidityMiningInitResultData);
// event that tracks logic contract address change
event LiquidityMiningLogicSet(address indexed newAddress);
// event that tracks default extension contract address change
event LiquidityMiningDefaultExtensionSet(address indexed newAddress);
// event that tracks wallet changes
event FeePercentageSet(uint256 newFeePercentage);
constructor(address doubleProxy, address _liquidityMiningImplementationAddress, address _liquidityMiningDefaultExtension, uint256 feePercentage, string memory liquidityFarmTokenCollectionUri, string memory liquidityFarmTokenUri) {
_doubleProxy = doubleProxy;
liquidityFarmTokenCollectionURI = liquidityFarmTokenCollectionUri;
liquidityFarmTokenURI = liquidityFarmTokenUri;
emit LiquidityMiningLogicSet(liquidityMiningImplementationAddress = _liquidityMiningImplementationAddress);
emit LiquidityMiningDefaultExtensionSet(liquidityMiningDefaultExtension = _liquidityMiningDefaultExtension);
emit FeePercentageSet(_feePercentage = feePercentage);
}
/** PUBLIC METHODS */
function feePercentageInfo() public override view returns (uint256, address) {
return (_feePercentage, IMVDProxy(IDoubleProxy(_doubleProxy).proxy()).getMVDWalletAddress());
}
/** @dev allows the DFO to update the double proxy address.
* @param newDoubleProxy new double proxy address.
*/
function setDoubleProxy(address newDoubleProxy) public onlyDFO {
_doubleProxy = newDoubleProxy;
}
/** @dev change the fee percentage
* @param feePercentage new fee percentage.
*/
function updateFeePercentage(uint256 feePercentage) public onlyDFO {
emit FeePercentageSet(_feePercentage = feePercentage);
}
/** @dev allows the factory owner to update the logic contract address.
* @param _liquidityMiningImplementationAddress new liquidity mining implementation address.
*/
function updateLogicAddress(address _liquidityMiningImplementationAddress) public onlyDFO {
emit LiquidityMiningLogicSet(liquidityMiningImplementationAddress = _liquidityMiningImplementationAddress);
}
/** @dev allows the factory owner to update the default extension contract address.
* @param _liquidityMiningDefaultExtensionAddress new liquidity mining extension address.
*/
function updateDefaultExtensionAddress(address _liquidityMiningDefaultExtensionAddress) public onlyDFO {
emit LiquidityMiningDefaultExtensionSet(liquidityMiningDefaultExtension = _liquidityMiningDefaultExtensionAddress);
}
/** @dev allows the factory owner to update the liquidity farm token collection uri.
* @param liquidityFarmTokenCollectionUri new liquidity farm token collection uri.
*/
function updateLiquidityFarmTokenCollectionURI(string memory liquidityFarmTokenCollectionUri) public onlyDFO {
liquidityFarmTokenCollectionURI = liquidityFarmTokenCollectionUri;
}
/** @dev allows the factory owner to update the liquidity farm token collection uri.
* @param liquidityFarmTokenUri new liquidity farm token collection uri.
*/
function updateLiquidityFarmTokenURI(string memory liquidityFarmTokenUri) public onlyDFO {
liquidityFarmTokenURI = liquidityFarmTokenUri;
}
/** @dev returns the liquidity farm token collection uri.
* @return liquidity farm token collection uri.
*/
function getLiquidityFarmTokenCollectionURI() public override view returns (string memory) {
return liquidityFarmTokenCollectionURI;
}
/** @dev returns the liquidity farm token uri.
* @return liquidity farm token uri.
*/
function getLiquidityFarmTokenURI() public override view returns (string memory) {
return liquidityFarmTokenURI;
}
/** @dev utlity method to clone default extension
* @return clonedExtension the address of the actually-cloned liquidity mining extension
*/
function cloneLiquidityMiningDefaultExtension() public override returns(address clonedExtension) {
emit ExtensionCloned(clonedExtension = _clone(liquidityMiningDefaultExtension));
}
/** @dev this function deploys a new LiquidityMining contract and calls the encoded function passed as data.
* @param data encoded initialize function for the liquidity mining contract (check LiquidityMining contract code).
* @return contractAddress new liquidity mining contract address.
* @return initResultData new liquidity mining contract call result.
*/
function deploy(bytes memory data) public returns (address contractAddress, bytes memory initResultData) {
initResultData = _call(contractAddress = _clone(liquidityMiningImplementationAddress), data);
emit LiquidityMiningDeployed(contractAddress, msg.sender, initResultData);
}
/** PRIVATE METHODS */
/** @dev clones the input contract address and returns the copied contract address.
* @param original address of the original contract.
* @return copy copied contract address.
*/
function _clone(address original) private returns (address copy) {
assembly {
mstore(
0,
or(
0x5880730000000000000000000000000000000000000000803b80938091923cF3,
mul(original, 0x1000000000000000000)
)
)
copy := create(0, 0, 32)
switch extcodesize(copy)
case 0 {
invalid()
}
}
}
/** @dev calls the contract at the given location using the given payload and returns the returnData.
* @param location location to call.
* @param payload call payload.
* @return returnData call return data.
*/
function _call(address location, bytes memory payload) private returns(bytes memory returnData) {
assembly {
let result := call(gas(), location, 0, add(payload, 0x20), mload(payload), 0, 0)
let size := returndatasize()
returnData := mload(0x40)
mstore(returnData, size)
let returnDataPayloadStart := add(returnData, 0x20)
returndatacopy(returnDataPayloadStart, 0, size)
mstore(0x40, add(returnDataPayloadStart, size))
switch result case 0 {revert(returnDataPayloadStart, size)}
}
}
/** @dev onlyDFO modifier used to check for unauthorized accesses. */
modifier onlyDFO() {
require(IMVDFunctionalitiesManager(IMVDProxy(IDoubleProxy(_doubleProxy).proxy()).getMVDFunctionalitiesManagerAddress()).isAuthorizedFunctionality(msg.sender), "Unauthorized.");
_;
}
} | updateFeePercentage | function updateFeePercentage(uint256 feePercentage) public onlyDFO {
emit FeePercentageSet(_feePercentage = feePercentage);
}
| /** @dev change the fee percentage
* @param feePercentage new fee percentage.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | MIT | ipfs://f058c01d1a28d1984b20f4a56b451c5333cbb324fde2ceba602ca7e5b331c64a | {
"func_code_index": [
2449,
2593
]
} | 58,859 |
||
LiquidityMiningFactory | contracts\liquidity-mining\LiquidityMiningFactory.sol | 0x9df4e915d093f03169270857cf9a0a5d1ef26388 | Solidity | LiquidityMiningFactory | contract LiquidityMiningFactory is ILiquidityMiningFactory {
// liquidity mining contract implementation address
address public liquidityMiningImplementationAddress;
// liquidity mining default extension
address public override liquidityMiningDefaultExtension;
// double proxy address of the linked DFO
address public _doubleProxy;
// linked DFO exit fee
uint256 private _feePercentage;
// liquidity mining collection uri
string public liquidityFarmTokenCollectionURI;
// liquidity mining farm token uri
string public liquidityFarmTokenURI;
// event that tracks liquidity mining contracts deployed
event LiquidityMiningDeployed(address indexed liquidityMiningAddress, address indexed sender, bytes liquidityMiningInitResultData);
// event that tracks logic contract address change
event LiquidityMiningLogicSet(address indexed newAddress);
// event that tracks default extension contract address change
event LiquidityMiningDefaultExtensionSet(address indexed newAddress);
// event that tracks wallet changes
event FeePercentageSet(uint256 newFeePercentage);
constructor(address doubleProxy, address _liquidityMiningImplementationAddress, address _liquidityMiningDefaultExtension, uint256 feePercentage, string memory liquidityFarmTokenCollectionUri, string memory liquidityFarmTokenUri) {
_doubleProxy = doubleProxy;
liquidityFarmTokenCollectionURI = liquidityFarmTokenCollectionUri;
liquidityFarmTokenURI = liquidityFarmTokenUri;
emit LiquidityMiningLogicSet(liquidityMiningImplementationAddress = _liquidityMiningImplementationAddress);
emit LiquidityMiningDefaultExtensionSet(liquidityMiningDefaultExtension = _liquidityMiningDefaultExtension);
emit FeePercentageSet(_feePercentage = feePercentage);
}
/** PUBLIC METHODS */
function feePercentageInfo() public override view returns (uint256, address) {
return (_feePercentage, IMVDProxy(IDoubleProxy(_doubleProxy).proxy()).getMVDWalletAddress());
}
/** @dev allows the DFO to update the double proxy address.
* @param newDoubleProxy new double proxy address.
*/
function setDoubleProxy(address newDoubleProxy) public onlyDFO {
_doubleProxy = newDoubleProxy;
}
/** @dev change the fee percentage
* @param feePercentage new fee percentage.
*/
function updateFeePercentage(uint256 feePercentage) public onlyDFO {
emit FeePercentageSet(_feePercentage = feePercentage);
}
/** @dev allows the factory owner to update the logic contract address.
* @param _liquidityMiningImplementationAddress new liquidity mining implementation address.
*/
function updateLogicAddress(address _liquidityMiningImplementationAddress) public onlyDFO {
emit LiquidityMiningLogicSet(liquidityMiningImplementationAddress = _liquidityMiningImplementationAddress);
}
/** @dev allows the factory owner to update the default extension contract address.
* @param _liquidityMiningDefaultExtensionAddress new liquidity mining extension address.
*/
function updateDefaultExtensionAddress(address _liquidityMiningDefaultExtensionAddress) public onlyDFO {
emit LiquidityMiningDefaultExtensionSet(liquidityMiningDefaultExtension = _liquidityMiningDefaultExtensionAddress);
}
/** @dev allows the factory owner to update the liquidity farm token collection uri.
* @param liquidityFarmTokenCollectionUri new liquidity farm token collection uri.
*/
function updateLiquidityFarmTokenCollectionURI(string memory liquidityFarmTokenCollectionUri) public onlyDFO {
liquidityFarmTokenCollectionURI = liquidityFarmTokenCollectionUri;
}
/** @dev allows the factory owner to update the liquidity farm token collection uri.
* @param liquidityFarmTokenUri new liquidity farm token collection uri.
*/
function updateLiquidityFarmTokenURI(string memory liquidityFarmTokenUri) public onlyDFO {
liquidityFarmTokenURI = liquidityFarmTokenUri;
}
/** @dev returns the liquidity farm token collection uri.
* @return liquidity farm token collection uri.
*/
function getLiquidityFarmTokenCollectionURI() public override view returns (string memory) {
return liquidityFarmTokenCollectionURI;
}
/** @dev returns the liquidity farm token uri.
* @return liquidity farm token uri.
*/
function getLiquidityFarmTokenURI() public override view returns (string memory) {
return liquidityFarmTokenURI;
}
/** @dev utlity method to clone default extension
* @return clonedExtension the address of the actually-cloned liquidity mining extension
*/
function cloneLiquidityMiningDefaultExtension() public override returns(address clonedExtension) {
emit ExtensionCloned(clonedExtension = _clone(liquidityMiningDefaultExtension));
}
/** @dev this function deploys a new LiquidityMining contract and calls the encoded function passed as data.
* @param data encoded initialize function for the liquidity mining contract (check LiquidityMining contract code).
* @return contractAddress new liquidity mining contract address.
* @return initResultData new liquidity mining contract call result.
*/
function deploy(bytes memory data) public returns (address contractAddress, bytes memory initResultData) {
initResultData = _call(contractAddress = _clone(liquidityMiningImplementationAddress), data);
emit LiquidityMiningDeployed(contractAddress, msg.sender, initResultData);
}
/** PRIVATE METHODS */
/** @dev clones the input contract address and returns the copied contract address.
* @param original address of the original contract.
* @return copy copied contract address.
*/
function _clone(address original) private returns (address copy) {
assembly {
mstore(
0,
or(
0x5880730000000000000000000000000000000000000000803b80938091923cF3,
mul(original, 0x1000000000000000000)
)
)
copy := create(0, 0, 32)
switch extcodesize(copy)
case 0 {
invalid()
}
}
}
/** @dev calls the contract at the given location using the given payload and returns the returnData.
* @param location location to call.
* @param payload call payload.
* @return returnData call return data.
*/
function _call(address location, bytes memory payload) private returns(bytes memory returnData) {
assembly {
let result := call(gas(), location, 0, add(payload, 0x20), mload(payload), 0, 0)
let size := returndatasize()
returnData := mload(0x40)
mstore(returnData, size)
let returnDataPayloadStart := add(returnData, 0x20)
returndatacopy(returnDataPayloadStart, 0, size)
mstore(0x40, add(returnDataPayloadStart, size))
switch result case 0 {revert(returnDataPayloadStart, size)}
}
}
/** @dev onlyDFO modifier used to check for unauthorized accesses. */
modifier onlyDFO() {
require(IMVDFunctionalitiesManager(IMVDProxy(IDoubleProxy(_doubleProxy).proxy()).getMVDFunctionalitiesManagerAddress()).isAuthorizedFunctionality(msg.sender), "Unauthorized.");
_;
}
} | updateLogicAddress | function updateLogicAddress(address _liquidityMiningImplementationAddress) public onlyDFO {
emit LiquidityMiningLogicSet(liquidityMiningImplementationAddress = _liquidityMiningImplementationAddress);
}
| /** @dev allows the factory owner to update the logic contract address.
* @param _liquidityMiningImplementationAddress new liquidity mining implementation address.
*/ | NatSpecMultiLine | v0.7.6+commit.7338295f | MIT | ipfs://f058c01d1a28d1984b20f4a56b451c5333cbb324fde2ceba602ca7e5b331c64a | {
"func_code_index": [
2780,
3000
]
} | 58,860 |
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