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