From 8783dd017861b3ff13af7f69d5af0da042a6f365 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Sun, 17 Nov 2024 11:57:45 +0100
Subject: [PATCH] Avoid redundant CMap-value lookup in `extendCMap` (PR 5101
 follow-up)

When iterating through `useCMap` the value is already available, without having to manually invoke the `lookup`-method.
While this will likely not affect performance in any noticeable way, it's nonetheless unnecessary to lookup an already available value twice.
---
 src/core/cmap.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/cmap.js b/src/core/cmap.js
index 5e7040c6d2a4e..6c0cab60cc6ae 100644
--- a/src/core/cmap.js
+++ b/src/core/cmap.js
@@ -662,7 +662,7 @@ async function extendCMap(cMap, fetchBuiltInCMap, useCMap) {
   // any previously defined entries.
   cMap.useCMap.forEach(function (key, value) {
     if (!cMap.contains(key)) {
-      cMap.mapOne(key, cMap.useCMap.lookup(key));
+      cMap.mapOne(key, value);
     }
   });