From 18fc01d102bbd76096e5edfef4040b596570bf99 Mon Sep 17 00:00:00 2001
From: Melvillian <alex.melville@uniswap.org>
Date: Fri, 22 Aug 2025 14:40:45 -0400
Subject: [PATCH] cache nonce value in
 FlashtestationRegistry:invalidatePreviousSignature for small gas improvement

---
 src/FlashtestationRegistry.sol | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/FlashtestationRegistry.sol b/src/FlashtestationRegistry.sol
index 40535a1..647a832 100644
--- a/src/FlashtestationRegistry.sol
+++ b/src/FlashtestationRegistry.sol
@@ -245,9 +245,10 @@ contract FlashtestationRegistry is
 
     /// @inheritdoc IFlashtestationRegistry
     function invalidatePreviousSignature(uint256 _nonce) external override {
-        require(_nonce == nonces[msg.sender], InvalidNonce(nonces[msg.sender], _nonce));
+        uint256 nonce = nonces[msg.sender];
+        require(_nonce == nonce, InvalidNonce(nonce, _nonce));
         nonces[msg.sender]++;
-        emit PreviousSignatureInvalidated(msg.sender, _nonce);
+        emit PreviousSignatureInvalidated(msg.sender, nonce);
     }
 
     /// @inheritdoc IFlashtestationRegistry