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openzeppelin-contracts/contracts/governance/extensions/GovernorProposalThreshold.sol

34 lines
1021 B

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../Governor.sol";
/**
* @dev Extension of {Governor} for proposal restriction to token holders with a minimum balance.
*
* _Available since v4.3._
*/
abstract contract GovernorProposalThreshold is Governor {
/**
* @dev See {IGovernor-propose}.
*/
function propose(
address[] memory targets,
uint256[] memory values,
bytes[] memory calldatas,
string memory description
) public virtual override returns (uint256) {
require(
getVotes(msg.sender, block.number - 1) >= proposalThreshold(),
"GovernorCompatibilityBravo: proposer votes below proposal threshold"
);
return super.propose(targets, values, calldatas, description);
}
/**
* @dev Part of the Governor Bravo's interface: _"The number of votes required in order for a voter to become a proposer"_.
*/
function proposalThreshold() public view virtual returns (uint256);
}