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Merge branch 'certora/erc20' of github.com:Certora/openzeppelin-contracts into remotes/origin/certora/erc20

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This commit is contained in:
Nick Armstrong
2022-03-08 18:23:38 -08:00
parent 56e4ae9f4a 1900c86c99
commit 2be84e627b
2 changed files with 0 additions and 27 deletions
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23
certora/harnesses/ERC20VotesHarness.sol
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@ -2,27 +2,4 @@ import "../munged/token/ERC20/extensions/ERC20Votes.sol";
contract ERC20VotesHarness is ERC20Votes {
constructor(string memory name, string memory symbol) ERC20Permit(name) ERC20(name, symbol) {}
mapping(address => mapping(uint256 => uint256)) public _getPastVotes;
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual override {
super._afterTokenTransfer(from, to, amount);
_getPastVotes[from][block.number] -= amount;
_getPastVotes[to][block.number] += amount;
}
/**
* @dev Change delegation for `delegator` to `delegatee`.
*
* Emits events {DelegateChanged} and {DelegateVotesChanged}.
*/
function _delegate(address delegator, address delegatee) internal virtual override{
super._delegate(delegator, delegatee);
_getPastVotes[delegator][block.number] -= balanceOf(delegator);
_getPastVotes[delegatee][block.number] += balanceOf(delegator);
}
}

4
certora/specs/GovernorCountingSimple.spec
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@ -1,7 +1,5 @@
import "GovernorBase.spec"
using ERC20VotesHarness as erc20votes
methods {
ghost_sum_vote_power_by_id(uint256) returns uint256 envfree
@ -11,8 +9,6 @@ methods {
quorumNumerator() returns uint256
_executor() returns address
erc20votes._getPastVotes(address, uint256) returns uint256
getExecutor() returns address
timelock() returns address