From 3fa9b08a5277b45e1787fcd80e71c806e523fade Mon Sep 17 00:00:00 2001
From: Mathias Agopian <mathias@google.com>
Date: Fri, 6 Aug 2021 13:57:45 -0700
Subject: [PATCH] don't do a hashmap lookup while iterating the hashmap

---
 libs/matdbg/src/DebugServer.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/libs/matdbg/src/DebugServer.cpp b/libs/matdbg/src/DebugServer.cpp
index 8da80637d0..d9e867a9f6 100644
--- a/libs/matdbg/src/DebugServer.cpp
+++ b/libs/matdbg/src/DebugServer.cpp
@@ -563,9 +563,13 @@ const DebugServer::MaterialRecord* DebugServer::getRecord(const MaterialKey& key
 
 void DebugServer::updateActiveVariants() {
     if (mQueryCallback) {
-        for (auto& pair : mMaterialRecords) {
-            VariantList& result = mMaterialRecords[pair.first].activeVariants;
-            mQueryCallback(pair.second.userdata, &result);
+        auto curr = mMaterialRecords.begin();
+        auto end = mMaterialRecords.end();
+        while (curr != end) {
+            auto& value = curr.value();
+            VariantList& result = value.activeVariants;
+            mQueryCallback(value.userdata, &result);
+            ++curr;
         }
     }
 }