{
    "Function": "propose",
    "File": "contracts/governance/GovernorAlpha.sol",
    "Parent Contracts": [],
    "High-Level Calls": [
        "IXVader"
    ],
    "Internal Calls": [
        "require(bool,string)",
        "require(bool,string)",
        "votingPeriod",
        "require(bool,string)",
        "require(bool,string)",
        "require(bool,string)",
        "votingDelay",
        "proposalMaxOperations",
        "state"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "function propose(\n        address[] memory targets,\n        uint256[] memory values,\n        string[] memory signatures,\n        bytes[] memory calldatas,\n        string memory description\n    ) public returns (uint256 proposalId) {\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(\n            targets.length != 0,\n            \"GovernorAlpha::propose: must provide actions\"\n        );\n        require(\n            targets.length <= proposalMaxOperations(),\n            \"GovernorAlpha::propose: too many actions\"\n        );\n\n        xVader.transferFrom(msg.sender, feeReceiver, feeAmount);\n\n        uint256 latestProposalId = latestProposalIds[msg.sender];\n        if (latestProposalId != 0) {\n            ProposalState proposersLatestProposalState = state(\n                latestProposalId\n            );\n            require(\n                proposersLatestProposalState != ProposalState.Active,\n                \"GovernorAlpha::propose: one live proposal per proposer, found an already active proposal\"\n            );\n            require(\n                proposersLatestProposalState != ProposalState.Pending,\n                \"GovernorAlpha::propose: one live proposal per proposer, found an already pending proposal\"\n            );\n        }\n\n        uint256 startBlock = block.number + votingDelay();\n        uint256 endBlock = startBlock + votingPeriod();\n\n        proposalId = ++proposalCount;\n        Proposal storage newProposal = proposals[proposalId];\n        newProposal.id = proposalId;\n        newProposal.proposer = msg.sender;\n        newProposal.targets = targets;\n        newProposal.values = values;\n        newProposal.signatures = signatures;\n        newProposal.calldatas = calldatas;\n        newProposal.startBlock = startBlock;\n        newProposal.endBlock = endBlock;\n\n        latestProposalIds[msg.sender] = proposalId;\n\n        emit ProposalCreated(\n            proposalId,\n            msg.sender,\n            targets,\n            values,\n            signatures,\n            calldatas,\n            startBlock,\n            endBlock,\n            description\n        );\n    }"
}