From cc1ef75953fc33e178ac6102ec7f21536a7753c7 Mon Sep 17 00:00:00 2001
From: pscott <30843220+pscott@users.noreply.github.com>
Date: Tue, 10 Oct 2023 15:19:32 +0200
Subject: [PATCH] audit: L-02 No Gap Variable (#591)

* fix: use gaps in SimpleQuorumExecutionStrategy and StarnketSpaceManager
---------

Co-authored-by: Orland0x <37511817+Orland0x@users.noreply.github.com>
---
 .../execution-strategies/SimpleQuorumExecutionStrategy.sol   | 5 +++++
 ethereum/src/execution-strategies/StarknetSpaceManager.sol   | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/ethereum/src/execution-strategies/SimpleQuorumExecutionStrategy.sol b/ethereum/src/execution-strategies/SimpleQuorumExecutionStrategy.sol
index a4c827b98..dfba4a911 100644
--- a/ethereum/src/execution-strategies/SimpleQuorumExecutionStrategy.sol
+++ b/ethereum/src/execution-strategies/SimpleQuorumExecutionStrategy.sol
@@ -76,4 +76,9 @@ abstract contract SimpleQuorumExecutionStrategy is IExecutionStrategy, StarknetS
     }
 
     function getStrategyType() external view virtual override returns (string memory);
+
+    /// @dev This empty reserved space is put in place to allow future versions to add new
+    ///      variables without shifting down storage in the inheritance chain.
+    ///      See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
+    uint256[49] private __gap;
 }
diff --git a/ethereum/src/execution-strategies/StarknetSpaceManager.sol b/ethereum/src/execution-strategies/StarknetSpaceManager.sol
index a2383f433..d8f594bc1 100644
--- a/ethereum/src/execution-strategies/StarknetSpaceManager.sol
+++ b/ethereum/src/execution-strategies/StarknetSpaceManager.sol
@@ -57,4 +57,9 @@ contract StarknetSpaceManager is OwnableUpgradeable {
         if (spaces[space] == FALSE) revert InvalidSpace();
         _;
     }
+
+    /// @dev This empty reserved space is put in place to allow future versions to add new
+    ///      variables without shifting down storage in the inheritance chain.
+    ///      See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
+    uint256[49] private __gap;
 }