Michael Morami
3 years ago
committed by
GitHub
commit
f2c352366a
@ -0,0 +1,135 @@ |
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// SPDX-License-Identifier: MIT |
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// OpenZeppelin Contracts v4.3.2 (finance/VestingWallet.sol) |
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pragma solidity ^0.8.0; |
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|
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import "../token/ERC20/utils/SafeERC20.sol"; |
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import "../utils/Address.sol"; |
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import "../utils/Context.sol"; |
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import "../utils/math/Math.sol"; |
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|
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/** |
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* @title VestingWallet |
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* @dev This contract handles the vesting of Eth and ERC20 tokens for a given beneficiary. Custody of multiple tokens |
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* can be given to this contract, which will release the token to the beneficiary following a given vesting schedule. |
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* The vesting schedule is customizable through the {vestedAmount} function. |
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* |
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* Any token transferred to this contract will follow the vesting schedule as if they were locked from the beginning. |
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* Consequently, if the vesting has already started, any amount of tokens sent to this contract will (at least partly) |
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* be immediately releasable. |
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*/ |
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contract VestingWallet is Context { |
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event EtherReleased(uint256 amount); |
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event ERC20Released(address token, uint256 amount); |
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|
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uint256 private _released; |
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mapping(address => uint256) private _erc20Released; |
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address private immutable _beneficiary; |
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uint64 private immutable _start; |
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uint64 private immutable _duration; |
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|
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/** |
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* @dev Set the beneficiary, start timestamp and vesting duration of the vesting wallet. |
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*/ |
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constructor( |
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address beneficiaryAddress, |
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uint64 startTimestamp, |
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uint64 durationSeconds |
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) { |
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require(beneficiaryAddress != address(0), "VestingWallet: beneficiary is zero address"); |
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_beneficiary = beneficiaryAddress; |
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_start = startTimestamp; |
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_duration = durationSeconds; |
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} |
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|
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/** |
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* @dev The contract should be able to receive Eth. |
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*/ |
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receive() external payable virtual {} |
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|
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/** |
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* @dev Getter for the beneficiary address. |
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*/ |
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function beneficiary() public view virtual returns (address) { |
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return _beneficiary; |
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} |
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|
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/** |
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* @dev Getter for the start timestamp. |
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*/ |
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function start() public view virtual returns (uint256) { |
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return _start; |
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} |
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|
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/** |
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* @dev Getter for the vesting duration. |
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*/ |
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function duration() public view virtual returns (uint256) { |
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return _duration; |
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} |
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|
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/** |
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* @dev Amount of eth already released |
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*/ |
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function released() public view virtual returns (uint256) { |
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return _released; |
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} |
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|
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/** |
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* @dev Amount of token already released |
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*/ |
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function released(address token) public view virtual returns (uint256) { |
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return _erc20Released[token]; |
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} |
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|
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/** |
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* @dev Release the native token (ether) that have already vested. |
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* |
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* Emits a {TokensReleased} event. |
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*/ |
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function release() public virtual { |
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uint256 releasable = vestedAmount(uint64(block.timestamp)) - released(); |
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_released += releasable; |
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emit EtherReleased(releasable); |
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Address.sendValue(payable(beneficiary()), releasable); |
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} |
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|
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/** |
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* @dev Release the tokens that have already vested. |
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* |
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* Emits a {TokensReleased} event. |
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*/ |
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function release(address token) public virtual { |
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uint256 releasable = vestedAmount(token, uint64(block.timestamp)) - released(token); |
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_erc20Released[token] += releasable; |
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emit ERC20Released(token, releasable); |
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SafeERC20.safeTransfer(IERC20(token), beneficiary(), releasable); |
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} |
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|
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/** |
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* @dev Calculates the amount of ether that has already vested. Default implementation is a linear vesting curve. |
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*/ |
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function vestedAmount(uint64 timestamp) public view virtual returns (uint256) { |
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return _vestingSchedule(address(this).balance + released(), timestamp); |
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} |
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|
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/** |
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* @dev Calculates the amount of tokens that has already vested. Default implementation is a linear vesting curve. |
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*/ |
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function vestedAmount(address token, uint64 timestamp) public view virtual returns (uint256) { |
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return _vestingSchedule(IERC20(token).balanceOf(address(this)) + released(token), timestamp); |
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} |
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|
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/** |
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* @dev Virtual implementation of the vesting formula. This returns the amout vested, as a function of time, for |
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* an asset given its total historical allocation. |
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*/ |
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function _vestingSchedule(uint256 totalAllocation, uint64 timestamp) internal view virtual returns (uint256) { |
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if (timestamp < start()) { |
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return 0; |
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} else if (timestamp > start() + duration()) { |
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return totalAllocation; |
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} else { |
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return (totalAllocation * (timestamp - start())) / duration(); |
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} |
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} |
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} |
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@ -0,0 +1,114 @@ |
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// SPDX-License-Identifier: MIT |
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// OpenZeppelin Contracts v4.3.2 (governance/extensions/GovernorSettings.sol) |
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|
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pragma solidity ^0.8.0; |
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import "../Governor.sol"; |
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/** |
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* @dev Extension of {Governor} for settings updatable through governance. |
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* |
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* _Available since v4.4._ |
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*/ |
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abstract contract GovernorSettings is Governor { |
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uint256 private _votingDelay; |
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uint256 private _votingPeriod; |
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uint256 private _proposalThreshold; |
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|
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event VotingDelaySet(uint256 oldVotingDelay, uint256 newVotingDelay); |
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event VotingPeriodSet(uint256 oldVotingPeriod, uint256 newVotingPeriod); |
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event ProposalThresholdSet(uint256 oldProposalThreshold, uint256 newProposalThreshold); |
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|
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/** |
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* @dev Initialize the governance parameters. |
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*/ |
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constructor( |
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uint256 initialVotingDelay, |
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uint256 initialVotingPeriod, |
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uint256 initialProposalThreshold |
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) { |
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_setVotingDelay(initialVotingDelay); |
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_setVotingPeriod(initialVotingPeriod); |
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_setProposalThreshold(initialProposalThreshold); |
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} |
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|
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/** |
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* @dev See {IGovernor-votingDelay}. |
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*/ |
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function votingDelay() public view virtual override returns (uint256) { |
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return _votingDelay; |
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} |
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|
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/** |
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* @dev See {IGovernor-votingPeriod}. |
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*/ |
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function votingPeriod() public view virtual override returns (uint256) { |
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return _votingPeriod; |
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} |
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|
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/** |
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* @dev See {Governor-proposalThreshold}. |
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*/ |
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function proposalThreshold() public view virtual override returns (uint256) { |
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return _proposalThreshold; |
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} |
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|
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/** |
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* @dev Update the voting delay. This operation can only be performed through a governance proposal. |
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* |
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* Emits a {VotingDelaySet} event. |
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*/ |
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function setVotingDelay(uint256 newVotingDelay) public onlyGovernance { |
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_setVotingDelay(newVotingDelay); |
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} |
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|
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/** |
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* @dev Update the voting period. This operation can only be performed through a governance proposal. |
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* |
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* Emits a {VotingPeriodSet} event. |
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*/ |
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function setVotingPeriod(uint256 newVotingPeriod) public onlyGovernance { |
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_setVotingPeriod(newVotingPeriod); |
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} |
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|
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/** |
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* @dev Update the proposal threshold. This operation can only be performed through a governance proposal. |
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* |
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* Emits a {ProposalThresholdSet} event. |
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*/ |
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function setProposalThreshold(uint256 newProposalThreshold) public onlyGovernance { |
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_setProposalThreshold(newProposalThreshold); |
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} |
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|
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/** |
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* @dev Internal setter for the voting delay. |
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* |
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* Emits a {VotingDelaySet} event. |
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*/ |
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function _setVotingDelay(uint256 newVotingDelay) internal virtual { |
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emit VotingDelaySet(_votingDelay, newVotingDelay); |
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_votingDelay = newVotingDelay; |
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} |
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|
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/** |
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* @dev Internal setter for the voting period. |
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* |
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* Emits a {VotingPeriodSet} event. |
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*/ |
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function _setVotingPeriod(uint256 newVotingPeriod) internal virtual { |
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// voting period must be at least one block long |
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require(newVotingPeriod > 0, "GovernorSettings: voting period too low"); |
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emit VotingPeriodSet(_votingPeriod, newVotingPeriod); |
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_votingPeriod = newVotingPeriod; |
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} |
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|
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/** |
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* @dev Internal setter for the proposal threshold. |
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* |
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* Emits a {ProposalThresholdSet} event. |
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*/ |
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function _setProposalThreshold(uint256 newProposalThreshold) internal virtual { |
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emit ProposalThresholdSet(_proposalThreshold, newProposalThreshold); |
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_proposalThreshold = newProposalThreshold; |
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} |
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} |
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@ -0,0 +1,96 @@ |
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// SPDX-License-Identifier: MIT |
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pragma solidity ^0.8.2; |
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import "../../governance/Governor.sol"; |
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import "../../governance/extensions/GovernorCountingSimple.sol"; |
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import "../../governance/extensions/GovernorVotes.sol"; |
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import "../../governance/extensions/GovernorVotesQuorumFraction.sol"; |
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import "../../governance/extensions/GovernorTimelockControl.sol"; |
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|
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contract MyGovernor1 is |
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Governor, |
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GovernorTimelockControl, |
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GovernorVotes, |
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GovernorVotesQuorumFraction, |
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GovernorCountingSimple |
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{ |
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constructor(ERC20Votes _token, TimelockController _timelock) |
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Governor("MyGovernor") |
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GovernorVotes(_token) |
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GovernorVotesQuorumFraction(4) |
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GovernorTimelockControl(_timelock) |
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{} |
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|
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function votingDelay() public pure override returns (uint256) { |
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return 1; // 1 block |
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} |
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|
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function votingPeriod() public pure override returns (uint256) { |
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return 45818; // 1 week |
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} |
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|
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// The following functions are overrides required by Solidity. |
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|
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function quorum(uint256 blockNumber) |
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public |
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view |
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override(IGovernor, GovernorVotesQuorumFraction) |
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returns (uint256) |
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{ |
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return super.quorum(blockNumber); |
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} |
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|
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function getVotes(address account, uint256 blockNumber) |
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public |
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view |
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override(IGovernor, GovernorVotes) |
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returns (uint256) |
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{ |
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return super.getVotes(account, blockNumber); |
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} |
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|
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function state(uint256 proposalId) public view override(Governor, GovernorTimelockControl) returns (ProposalState) { |
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return super.state(proposalId); |
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} |
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|
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function propose( |
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address[] memory targets, |
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uint256[] memory values, |
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bytes[] memory calldatas, |
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string memory description |
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) public override(Governor, IGovernor) returns (uint256) { |
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return super.propose(targets, values, calldatas, description); |
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} |
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|
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function _execute( |
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uint256 proposalId, |
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address[] memory targets, |
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uint256[] memory values, |
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bytes[] memory calldatas, |
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bytes32 descriptionHash |
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) internal override(Governor, GovernorTimelockControl) { |
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super._execute(proposalId, targets, values, calldatas, descriptionHash); |
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} |
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|
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function _cancel( |
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address[] memory targets, |
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uint256[] memory values, |
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bytes[] memory calldatas, |
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bytes32 descriptionHash |
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) internal override(Governor, GovernorTimelockControl) returns (uint256) { |
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return super._cancel(targets, values, calldatas, descriptionHash); |
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} |
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|
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function _executor() internal view override(Governor, GovernorTimelockControl) returns (address) { |
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return super._executor(); |
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} |
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|
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function supportsInterface(bytes4 interfaceId) |
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public |
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view |
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override(Governor, GovernorTimelockControl) |
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returns (bool) |
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{ |
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return super.supportsInterface(interfaceId); |
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} |
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} |
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@ -0,0 +1,102 @@ |
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// SPDX-License-Identifier: MIT |
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pragma solidity ^0.8.2; |
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|
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import "../../governance/Governor.sol"; |
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import "../../governance/extensions/GovernorProposalThreshold.sol"; |
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import "../../governance/extensions/GovernorCountingSimple.sol"; |
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import "../../governance/extensions/GovernorVotes.sol"; |
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import "../../governance/extensions/GovernorVotesQuorumFraction.sol"; |
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import "../../governance/extensions/GovernorTimelockControl.sol"; |
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|
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contract MyGovernor2 is |
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Governor, |
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GovernorTimelockControl, |
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GovernorProposalThreshold, |
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GovernorVotes, |
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GovernorVotesQuorumFraction, |
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GovernorCountingSimple |
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{ |
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constructor(ERC20Votes _token, TimelockController _timelock) |
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Governor("MyGovernor") |
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GovernorVotes(_token) |
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GovernorVotesQuorumFraction(4) |
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GovernorTimelockControl(_timelock) |
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{} |
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|
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function votingDelay() public pure override returns (uint256) { |
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return 1; // 1 block |
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} |
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|
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function votingPeriod() public pure override returns (uint256) { |
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return 45818; // 1 week |
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} |
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|
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function proposalThreshold() public pure override returns (uint256) { |
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return 1000e18; |
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} |
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|
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// The following functions are overrides required by Solidity. |
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|
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function quorum(uint256 blockNumber) |
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public |
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view |
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override(IGovernor, GovernorVotesQuorumFraction) |
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returns (uint256) |
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{ |
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return super.quorum(blockNumber); |
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} |
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|
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function getVotes(address account, uint256 blockNumber) |
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public |
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view |
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override(IGovernor, GovernorVotes) |
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returns (uint256) |
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{ |
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return super.getVotes(account, blockNumber); |
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} |
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|
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function state(uint256 proposalId) public view override(Governor, GovernorTimelockControl) returns (ProposalState) { |
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return super.state(proposalId); |
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} |
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|
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function propose( |
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address[] memory targets, |
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uint256[] memory values, |
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bytes[] memory calldatas, |
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string memory description |
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) public override(Governor, GovernorProposalThreshold, IGovernor) returns (uint256) { |
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return super.propose(targets, values, calldatas, description); |
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} |
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|
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function _execute( |
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uint256 proposalId, |
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address[] memory targets, |
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uint256[] memory values, |
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bytes[] memory calldatas, |
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bytes32 descriptionHash |
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) internal override(Governor, GovernorTimelockControl) { |
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super._execute(proposalId, targets, values, calldatas, descriptionHash); |
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} |
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|
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function _cancel( |
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address[] memory targets, |
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uint256[] memory values, |
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bytes[] memory calldatas, |
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bytes32 descriptionHash |
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) internal override(Governor, GovernorTimelockControl) returns (uint256) { |
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return super._cancel(targets, values, calldatas, descriptionHash); |
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} |
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|
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function _executor() internal view override(Governor, GovernorTimelockControl) returns (address) { |
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return super._executor(); |
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} |
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|
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function supportsInterface(bytes4 interfaceId) |
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public |
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view |
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override(Governor, GovernorTimelockControl) |
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returns (bool) |
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{ |
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return super.supportsInterface(interfaceId); |
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} |
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} |
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@ -0,0 +1,105 @@ |
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// SPDX-License-Identifier: MIT |
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pragma solidity ^0.8.2; |
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|
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import "../../governance/Governor.sol"; |
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import "../../governance/compatibility/GovernorCompatibilityBravo.sol"; |
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import "../../governance/extensions/GovernorVotes.sol"; |
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import "../../governance/extensions/GovernorVotesQuorumFraction.sol"; |
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import "../../governance/extensions/GovernorTimelockControl.sol"; |
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|
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contract MyGovernor is |
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Governor, |
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GovernorTimelockControl, |
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GovernorCompatibilityBravo, |
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GovernorVotes, |
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GovernorVotesQuorumFraction |
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{ |
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constructor(ERC20Votes _token, TimelockController _timelock) |
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Governor("MyGovernor") |
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GovernorVotes(_token) |
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GovernorVotesQuorumFraction(4) |
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GovernorTimelockControl(_timelock) |
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{} |
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|
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function votingDelay() public pure override returns (uint256) { |
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return 1; // 1 block |
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} |
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|
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function votingPeriod() public pure override returns (uint256) { |
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return 45818; // 1 week |
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} |
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|
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function proposalThreshold() public pure override returns (uint256) { |
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return 1000e18; |
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} |
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|
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// The following functions are overrides required by Solidity. |
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|
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function quorum(uint256 blockNumber) |
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public |
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view |
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override(IGovernor, GovernorVotesQuorumFraction) |
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returns (uint256) |
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{ |
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return super.quorum(blockNumber); |
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} |
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|
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function getVotes(address account, uint256 blockNumber) |
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public |
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view |
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override(IGovernor, GovernorVotes) |
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returns (uint256) |
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{ |
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return super.getVotes(account, blockNumber); |
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} |
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|
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function state(uint256 proposalId) |
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public |
||||
view |
||||
override(Governor, IGovernor, GovernorTimelockControl) |
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returns (ProposalState) |
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{ |
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return super.state(proposalId); |
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} |
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|
||||
function propose( |
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address[] memory targets, |
||||
uint256[] memory values, |
||||
bytes[] memory calldatas, |
||||
string memory description |
||||
) public override(Governor, GovernorCompatibilityBravo, IGovernor) returns (uint256) { |
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return super.propose(targets, values, calldatas, description); |
||||
} |
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|
||||
function _execute( |
||||
uint256 proposalId, |
||||
address[] memory targets, |
||||
uint256[] memory values, |
||||
bytes[] memory calldatas, |
||||
bytes32 descriptionHash |
||||
) internal override(Governor, GovernorTimelockControl) { |
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super._execute(proposalId, targets, values, calldatas, descriptionHash); |
||||
} |
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|
||||
function _cancel( |
||||
address[] memory targets, |
||||
uint256[] memory values, |
||||
bytes[] memory calldatas, |
||||
bytes32 descriptionHash |
||||
) internal override(Governor, GovernorTimelockControl) returns (uint256) { |
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return super._cancel(targets, values, calldatas, descriptionHash); |
||||
} |
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|
||||
function _executor() internal view override(Governor, GovernorTimelockControl) returns (address) { |
||||
return super._executor(); |
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} |
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|
||||
function supportsInterface(bytes4 interfaceId) |
||||
public |
||||
view |
||||
override(Governor, IERC165, GovernorTimelockControl) |
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returns (bool) |
||||
{ |
||||
return super.supportsInterface(interfaceId); |
||||
} |
||||
} |
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