refactor(contracts): optimize gas

semaphore-protocol · Jan 16, 2024 · b0f40ef · b0f40ef
1 parent dd1e3a1
commit b0f40ef
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/contracts/contracts/base/SemaphoreGroups.sol b/packages/contracts/contracts/base/SemaphoreGroups.sol
@@ -68,8 +68,8 @@ abstract contract SemaphoreGroups is ISemaphoreGroups {
         uint256 groupId,
         uint256 identityCommitment
     ) internal virtual onlyExistingGroup(groupId) onlyGroupAdmin(groupId) {
+        uint256 leafIndex = getMerkleTreeSize(groupId);
         uint256 merkleTreeRoot = merkleTrees[groupId]._insert(identityCommitment);
-        uint256 leafIndex = getMerkleTreeSize(groupId) - 1;
 
         emit MemberAdded(groupId, leafIndex, identityCommitment, merkleTreeRoot);
     }