Make ERC20Votes independent from ERC20Permit (#3816)

Co-authored-by: Francisco <frangio.1@gmail.com>
2022-11-29 10:25:52 -04:00
parent bc8f442d00
commit e2d2ebc8fc
18 changed files with 231 additions and 343 deletions
--- a/contracts/utils/Checkpoints.sol
+++ b/contracts/utils/Checkpoints.sol
@ -68,6 +68,13 @@ library Checkpoints {
        return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value;
    }

+    /**
+     * @dev Returns checkpoint at given position.
+     */
+    function getAtPosition(History storage self, uint32 pos) internal view returns (Checkpoint memory) {
+        return self._checkpoints[pos];
+    }
+
    /**
     * @dev Pushes a value onto a History so that it is stored as the checkpoint for the current block.
     *