Files
openzeppelin-contracts/certora/specs/GovernorChanges.spec
2023-03-13 17:26:38 +01:00

28 lines
1.8 KiB
Ruby

import "helpers.spec"
import "methods/IGovernor.spec"
import "Governor.helpers.spec"
/*
┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ Rule: internal variables can only change though specific functions calls │
└─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
*/
rule changes(uint256 pId, env e) {
require nonpayable(e);
require clockSanity(e);
address user;
bool isExecutedBefore = isExecuted(pId);
bool isCanceledBefore = isCanceled(pId);
bool isQueuedBefore = isQueued(pId);
bool hasVotedBefore = hasVoted(pId, user);
method f; calldataarg args; f(e, args);
assert isExecuted(pId) != isExecutedBefore => (!isExecutedBefore && f.selector == execute(address[],uint256[],bytes[],bytes32).selector);
assert isCanceled(pId) != isCanceledBefore => (!isCanceledBefore && f.selector == cancel(address[],uint256[],bytes[],bytes32).selector);
assert isQueued(pId) != isQueuedBefore => (!isQueuedBefore && f.selector == queue(address[],uint256[],bytes[],bytes32).selector);
assert hasVoted(pId, user) != hasVotedBefore => (!hasVotedBefore && voting(f));
}