Files
openzeppelin-contracts/contracts/token/ERC20/TokenTimelock.sol
Francisco Giordano 2e0713becb Rename ERC interfaces to I prefix (#1252)
* rename ERC20 to IERC20

* move ERC20.sol to IERC20.sol

* rename StandardToken to ERC20

* rename StandardTokenMock to ERC20Mock

* move StandardToken.sol to ERC20.sol, likewise test and mock files

* rename MintableToken to ERC20Mintable

* move MintableToken.sol to ERC20Mintable.sol, likewise test and mock files

* rename BurnableToken to ERC20Burnable

* move BurnableToken.sol to ERC20Burnable.sol, likewise for related files

* rename CappedToken to ERC20Capped

* move CappedToken.sol to ERC20Capped.sol, likewise for related files

* rename PausableToken to ERC20Pausable

* move PausableToken.sol to ERC20Pausable.sol, likewise for related files

* rename DetailedERC20 to ERC20Detailed

* move DetailedERC20.sol to ERC20Detailed.sol, likewise for related files

* rename ERC721 to IERC721, and likewise for other related interfaces

* move ERC721.sol to IERC721.sol, likewise for other 721 interfaces

* rename ERC721Token to ERC721

* move ERC721Token.sol to ERC721.sol, likewise for related files

* rename ERC721BasicToken to ERC721Basic

* move ERC721BasicToken.sol to ERC721Basic.sol, likewise for related files

* rename ERC721PausableToken to ERC721Pausable

* move ERC721PausableToken.sol to ERC721Pausable.sol

* rename ERC165 to IERC165

* move ERC165.sol to IERC165.sol

* amend comment that ERC20 is based on FirstBlood

* fix comments mentioning IERC721Receiver
2018-08-31 16:13:07 -03:00

50 lines
1.1 KiB
Solidity

pragma solidity ^0.4.24;
import "./SafeERC20.sol";
/**
* @title TokenTimelock
* @dev TokenTimelock is a token holder contract that will allow a
* beneficiary to extract the tokens after a given release time
*/
contract TokenTimelock {
using SafeERC20 for IERC20;
// ERC20 basic token contract being held
IERC20 public token;
// beneficiary of tokens after they are released
address public beneficiary;
// timestamp when token release is enabled
uint256 public releaseTime;
constructor(
IERC20 _token,
address _beneficiary,
uint256 _releaseTime
)
public
{
// solium-disable-next-line security/no-block-members
require(_releaseTime > block.timestamp);
token = _token;
beneficiary = _beneficiary;
releaseTime = _releaseTime;
}
/**
* @notice Transfers tokens held by timelock to beneficiary.
*/
function release() public {
// solium-disable-next-line security/no-block-members
require(block.timestamp >= releaseTime);
uint256 amount = token.balanceOf(address(this));
require(amount > 0);
token.safeTransfer(beneficiary, amount);
}
}