@venusprotocol/governance-contracts/artifacts/build-info/5ef7ba07b1e4b96d9b02042d36d229c2.json

### Prerequisites

{"id":"5ef7ba07b1e4b96d9b02042d36d229c2","_format":"hh-sol-build-info-1","solcVersion":"0.5.16","solcLongVersion":"0.5.16+commit.9c3226ce","input":{"language":"Solidity","sources":{"contracts/legacy/GovernorAlpha2.sol":{"content":"pragma solidity ^0.5.16;\npragma experimental ABIEncoderV2;\n\ncontract GovernorAlpha2 {\n    /// @notice The name of this contract\n    string public constant name = \"Venus Governor Alpha\";\n\n    /// @notice The number of votes in support of a proposal required in order for a quorum to be reached and for a vote to succeed\n    function quorumVotes() public pure returns (uint) {\n        return 600000e18;\n    } // 600,000 = 2% of XVS\n\n    /// @notice The number of votes required in order for a voter to become a proposer\n    function proposalThreshold() public pure returns (uint) {\n        return 300000e18;\n    } // 300,000 = 1% of XVS\n\n    /// @notice The maximum number of actions that can be included in a proposal\n    function proposalMaxOperations() public pure returns (uint) {\n        return 30;\n    } // 30 actions\n\n    /// @notice The delay before voting on a proposal may take place, once proposed\n    function votingDelay() public pure returns (uint) {\n        return 1;\n    } // 1 block\n\n    /// @notice The duration of voting on a proposal, in blocks\n    function votingPeriod() public pure returns (uint) {\n        return (60 * 60 * 24 * 3) / 3;\n    } // ~3 days in blocks (assuming 3s blocks)\n\n    /// @notice The address of the Venus Protocol Timelock\n    TimelockInterface public timelock;\n\n    /// @notice The address of the Venus governance token\n    XVSInterface public xvs;\n\n    /// @notice The address of the Governor Guardian\n    address public guardian;\n\n    /// @notice The total number of proposals\n    uint public proposalCount;\n\n    struct Proposal {\n        /// @notice Unique id for looking up a proposal\n        uint id;\n        /// @notice Creator of the proposal\n        address proposer;\n        /// @notice The timestamp that the proposal will be available for execution, set once the vote succeeds\n        uint eta;\n        /// @notice the ordered list of target addresses for calls to be made\n        address[] targets;\n        /// @notice The ordered list of values (i.e. msg.value) to be passed to the calls to be made\n        uint[] values;\n        /// @notice The ordered list of function signatures to be called\n        string[] signatures;\n        /// @notice The ordered list of calldata to be passed to each call\n        bytes[] calldatas;\n        /// @notice The block at which voting begins: holders must delegate their votes prior to this block\n        uint startBlock;\n        /// @notice The block at which voting ends: votes must be cast prior to this block\n        uint endBlock;\n        /// @notice Current number of votes in favor of this proposal\n        uint forVotes;\n        /// @notice Current number of votes in opposition to this proposal\n        uint againstVotes;\n        /// @notice Flag marking whether the proposal has been canceled\n        bool canceled;\n        /// @notice Flag marking whether the proposal has been executed\n        bool executed;\n        /// @notice Receipts of ballots for the entire set of voters\n        mapping(address => Receipt) receipts;\n    }\n\n    /// @notice Ballot receipt record for a voter\n    struct Receipt {\n        /// @notice Whether or not a vote has been cast\n        bool hasVoted;\n        /// @notice Whether or not the voter supports the proposal\n        bool support;\n        /// @notice The number of votes the voter had, which were cast\n        uint96 votes;\n    }\n\n    /// @notice Possible states that a proposal may be in\n    enum ProposalState {\n        Pending,\n        Active,\n        Canceled,\n        Defeated,\n        Succeeded,\n        Queued,\n        Expired,\n        Executed\n    }\n\n    /// @notice The official record of all proposals ever proposed\n    mapping(uint => Proposal) public proposals;\n\n    /// @notice The latest proposal for each proposer\n    mapping(address => uint) public latestProposalIds;\n\n    /// @notice The EIP-712 typehash for the contract's domain\n    bytes32 public constant DOMAIN_TYPEHASH =\n        keccak256(\"EIP712Domain(string name,uint256 chainId,address verifyingContract)\");\n\n    /// @notice The EIP-712 typehash for the ballot struct used by the contract\n    bytes32 public constant BALLOT_TYPEHASH = keccak256(\"Ballot(uint256 proposalId,bool support)\");\n\n    /// @notice An event emitted when a new proposal is created\n    event ProposalCreated(\n        uint id,\n        address proposer,\n        address[] targets,\n        uint[] values,\n        string[] signatures,\n        bytes[] calldatas,\n        uint startBlock,\n        uint endBlock,\n        string description\n    );\n\n    /// @notice An event emitted when a vote has been cast on a proposal\n    event VoteCast(address voter, uint proposalId, bool support, uint votes);\n\n    /// @notice An event emitted when a proposal has been canceled\n    event ProposalCanceled(uint id);\n\n    /// @notice An event emitted when a proposal has been queued in the Timelock\n    event ProposalQueued(uint id, uint eta);\n\n    /// @notice An event emitted when a proposal has been executed in the Timelock\n    event ProposalExecuted(uint id);\n\n    constructor(address timelock_, address xvs_, address guardian_, uint256 lastProposalId_) public {\n        timelock = TimelockInterface(timelock_);\n        xvs = XVSInterface(xvs_);\n        guardian = guardian_;\n        proposalCount = lastProposalId_;\n    }\n\n    function propose(\n        address[] memory targets,\n        uint[] memory values,\n        string[] memory signatures,\n        bytes[] memory calldatas,\n        string memory description\n    ) public returns (uint) {\n        require(\n            xvs.getPriorVotes(msg.sender, sub256(block.number, 1)) > proposalThreshold(),\n            \"GovernorAlpha::propose: proposer votes below proposal threshold\"\n        );\n        require(\n            targets.length == values.length &&\n                targets.length == signatures.length &&\n                targets.length == calldatas.length,\n            \"GovernorAlpha::propose: proposal function information arity mismatch\"\n        );\n        require(targets.length != 0, \"GovernorAlpha::propose: must provide actions\");\n        require(targets.length <= proposalMaxOperations(), \"GovernorAlpha::propose: too many actions\");\n\n        uint latestProposalId = latestProposalIds[msg.sender];\n        if (latestProposalId != 0) {\n            ProposalState proposersLatestProposalState = state(latestProposalId);\n            require(\n                proposersLatestProposalState != ProposalState.Active,\n                \"GovernorAlpha::propose: found an already active proposal\"\n            );\n            require(\n                proposersLatestProposalState != ProposalState.Pending,\n                \"GovernorAlpha::propose: found an already pending proposal\"\n            );\n        }\n\n        uint startBlock = add256(block.number, votingDelay());\n        uint endBlock = add256(startBlock, votingPeriod());\n\n        proposalCount++;\n        Proposal memory newProposal = Proposal({\n            id: proposalCount,\n            proposer: msg.sender,\n            eta: 0,\n            targets: targets,\n            values: values,\n            signatures: signatures,\n            calldatas: calldatas,\n            startBlock: startBlock,\n            endBlock: endBlock,\n            forVotes: 0,\n            againstVotes: 0,\n            canceled: false,\n            executed: false\n        });\n\n        proposals[newProposal.id] = newProposal;\n        latestProposalIds[newProposal.proposer] = newProposal.id;\n\n        emit ProposalCreated(\n            newProposal.id,\n            msg.sender,\n            targets,\n            values,\n            signatures,\n            calldatas,\n            startBlock,\n            endBlock,\n            description\n        );\n        return newProposal.id;\n    }\n\n    function queue(uint proposalId) public {\n        require(\n            state(proposalId) == ProposalState.Succeeded,\n            \"GovernorAlpha::queue: proposal can only be queued if it is succeeded\"\n        );\n        Proposal storage proposal = proposals[proposalId];\n        uint eta = add256(block.timestamp, timelock.delay());\n        for (uint i = 0; i < proposal.targets.length; i++) {\n            _queueOrRevert(proposal.targets[i], proposal.values[i], proposal.signatures[i], proposal.calldatas[i], eta);\n        }\n        proposal.eta = eta;\n        emit ProposalQueued(proposalId, eta);\n    }\n\n    function _queueOrRevert(address target, uint value, string memory signature, bytes memory data, uint eta) internal {\n        require(\n            !timelock.queuedTransactions(keccak256(abi.encode(target, value, signature, data, eta))),\n            \"GovernorAlpha::_queueOrRevert: proposal action already queued at eta\"\n        );\n        timelock.queueTransaction(target, value, signature, data, eta);\n    }\n\n    function execute(uint proposalId) public payable {\n        require(\n            state(proposalId) == ProposalState.Queued,\n            \"GovernorAlpha::execute: proposal can only be executed if it is queued\"\n        );\n        Proposal storage proposal = proposals[proposalId];\n        proposal.executed = true;\n        for (uint i = 0; i < proposal.targets.length; i++) {\n            timelock.executeTransaction.value(proposal.values[i])(\n                proposal.targets[i],\n                proposal.values[i],\n                proposal.signatures[i],\n                proposal.calldatas[i],\n                proposal.eta\n            );\n        }\n        emit ProposalExecuted(proposalId);\n    }\n\n    function cancel(uint proposalId) public {\n        ProposalState state = state(proposalId);\n        require(state != ProposalState.Executed, \"GovernorAlpha::cancel: cannot cancel executed proposal\");\n\n        Proposal storage proposal = proposals[proposalId];\n        require(\n            msg.sender == guardian ||\n                xvs.getPriorVotes(proposal.proposer, sub256(block.number, 1)) < proposalThreshold(),\n            \"GovernorAlpha::cancel: proposer above threshold\"\n        );\n\n        proposal.canceled = true;\n        for (uint i = 0; i < proposal.targets.length; i++) {\n            timelock.cancelTransaction(\n                proposal.targets[i],\n                proposal.values[i],\n                proposal.signatures[i],\n                proposal.calldatas[i],\n                proposal.eta\n            );\n        }\n\n        emit ProposalCanceled(proposalId);\n    }\n\n    function getActions(\n        uint proposalId\n    )\n        public\n        view\n        returns (address[] memory targets, uint[] memory values, string[] memory signatures, bytes[] memory calldatas)\n    {\n        Proposal storage p = proposals[proposalId];\n        return (p.targets, p.values, p.signatures, p.calldatas);\n    }\n\n    function getReceipt(uint proposalId, address voter) public view returns (Receipt memory) {\n        return proposals[proposalId].receipts[voter];\n    }\n\n    function state(uint proposalId) public view returns (ProposalState) {\n        require(proposalCount >= proposalId && proposalId > 0, \"GovernorAlpha::state: invalid proposal id\");\n        Proposal storage proposal = proposals[proposalId];\n        if (proposal.canceled) {\n            return ProposalState.Canceled;\n        } else if (block.number <= proposal.startBlock) {\n            return ProposalState.Pending;\n        } else if (block.number <= proposal.endBlock) {\n            return ProposalState.Active;\n        } else if (proposal.forVotes <= proposal.againstVotes || proposal.forVotes < quorumVotes()) {\n            return ProposalState.Defeated;\n        } else if (proposal.eta == 0) {\n            return ProposalState.Succeeded;\n        } else if (proposal.executed) {\n            return ProposalState.Executed;\n        } else if (block.timestamp >= add256(proposal.eta, timelock.GRACE_PERIOD())) {\n            return ProposalState.Expired;\n        } else {\n            return ProposalState.Queued;\n        }\n    }\n\n    function castVote(uint proposalId, bool support) public {\n        return _castVote(msg.sender, proposalId, support);\n    }\n\n    function castVoteBySig(uint proposalId, bool support, uint8 v, bytes32 r, bytes32 s) public {\n        bytes32 domainSeparator = keccak256(\n            abi.encode(DOMAIN_TYPEHASH, keccak256(bytes(name)), getChainId(), address(this))\n        );\n        bytes32 structHash = keccak256(abi.encode(BALLOT_TYPEHASH, proposalId, support));\n        bytes32 digest = keccak256(abi.encodePacked(\"\\x19\\x01\", domainSeparator, structHash));\n        address signatory = ecrecover(digest, v, r, s);\n        require(signatory != address(0), \"GovernorAlpha::castVoteBySig: invalid signature\");\n        return _castVote(signatory, proposalId, support);\n    }\n\n    function _castVote(address voter, uint proposalId, bool support) internal {\n        require(state(proposalId) == ProposalState.Active, \"GovernorAlpha::_castVote: voting is closed\");\n        Proposal storage proposal = proposals[proposalId];\n        Receipt storage receipt = proposal.receipts[voter];\n        require(receipt.hasVoted == false, \"GovernorAlpha::_castVote: voter already voted\");\n        uint96 votes = xvs.getPriorVotes(voter, proposal.startBlock);\n\n        if (support) {\n            proposal.forVotes = add256(proposal.forVotes, votes);\n        } else {\n            proposal.againstVotes = add256(proposal.againstVotes, votes);\n        }\n\n        receipt.hasVoted = true;\n        receipt.support = support;\n        receipt.votes = votes;\n\n        emit VoteCast(voter, proposalId, support, votes);\n    }\n\n    function __acceptAdmin() public {\n        require(msg.sender == guardian, \"GovernorAlpha::__acceptAdmin: sender must be gov guardian\");\n        timelock.acceptAdmin();\n    }\n\n    function __abdicate() public {\n        require(msg.sender == guardian, \"GovernorAlpha::__abdicate: sender must be gov guardian\");\n        guardian = address(0);\n    }\n\n    function __queueSetTimelockPendingAdmin(address newPendingAdmin, uint eta) public {\n        require(msg.sender == guardian, \"GovernorAlpha::__queueSetTimelockPendingAdmin: sender must be gov guardian\");\n        timelock.queueTransaction(address(timelock), 0, \"setPendingAdmin(address)\", abi.encode(newPendingAdmin), eta);\n    }\n\n    function __executeSetTimelockPendingAdmin(address newPendingAdmin, uint eta) public {\n        require(msg.sender == guardian, \"GovernorAlpha::__executeSetTimelockPendingAdmin: sender must be gov guardian\");\n        timelock.executeTransaction(address(timelock), 0, \"setPendingAdmin(address)\", abi.encode(newPendingAdmin), eta);\n    }\n\n    function add256(uint256 a, uint256 b) internal pure returns (uint) {\n        uint c = a + b;\n        require(c >= a, \"addition overflow\");\n        return c;\n    }\n\n    function sub256(uint256 a, uint256 b) internal pure returns (uint) {\n        require(b <= a, \"subtraction underflow\");\n        return a - b;\n    }\n\n    function getChainId() internal pure returns (uint) {\n        uint chainId;\n        assembly {\n            chainId := chainid()\n        }\n        return chainId;\n    }\n}\n\ninterface TimelockInterface {\n    function delay() external view returns (uint);\n\n    function GRACE_PERIOD() external view returns (uint);\n\n    function acceptAdmin() external;\n\n    function queuedTransactions(bytes32 hash) external view returns (bool);\n\n 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