✨ Timelock (#1194)

README.md

@@ -37,6 +37,7 @@ accounts
 ├─ LibERC6551 — "Library for interacting with ERC6551 accounts"
 ├─ LibERC7579 — "Library for handling ERC7579 mode and execution data"
 ├─ Receiver — "Receiver mixin for ETH and safe-transferred ERC721 and ERC1155 tokens"
+├─ Timelock — "Simple timelock"
 auth
 ├─ Ownable — "Simple single owner authorization mixin"
 ├─ OwnableRoles — "Simple single owner and multiroles authorization mixin"

src/Milady.sol

@@ -10,6 +10,7 @@ import "./accounts/ERC7821.sol";
 import "./accounts/LibERC6551.sol";
 import "./accounts/LibERC7579.sol";
 import "./accounts/Receiver.sol";
+import "./accounts/Timelock.sol";
 import "./auth/Ownable.sol";
 import "./auth/OwnableRoles.sol";
 import "./auth/EnumerableRoles.sol";

src/accounts/ERC7821.sol

@@ -76,7 +76,7 @@ contract ERC7821 is Receiver {
                 opData.length := calldataload(q)
             }
         }
-        return _execute(calls, opData);
+        return _execute(mode, executionData, calls, opData);
     }
 
     /// @dev Provided for execution mode support detection.
@@ -107,11 +107,16 @@ contract ERC7821 is Receiver {
 
     /// @dev Executes the `calls` and returns the results.
     /// Reverts and bubbles up error if any call fails.
-    function _execute(Call[] calldata calls, bytes calldata opData)
-        internal
-        virtual
-        returns (bytes[] memory)
-    {
+    /// The `mode` and `executionData` are passed along in case there's a need to use them.
+    function _execute(
+        bytes32 mode,
+        bytes calldata executionData,
+        Call[] calldata calls,
+        bytes calldata opData
+    ) internal virtual returns (bytes[] memory) {
+        // Silence compiler warning on unused variables.
+        mode = mode;
+        executionData = executionData;
         // Very basic auth to only allow this contract to be called by itself.
         // Override this function to perform more complex auth with `opData`.
         if (opData.length == uint256(0)) {