From c7bdf5b508bd0dbfb48eaf23ce9feb6fdebb8380 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Sat, 21 Feb 2026 12:00:19 +0100
Subject: [PATCH] Use `Map.prototype.getOrInsertComputed()` in the
 `ensureDebugMetadata` helper

Also, shorten the function by using optional chaining.
---
 src/display/canvas_dependency_tracker.js | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/src/display/canvas_dependency_tracker.js b/src/display/canvas_dependency_tracker.js
index 0d391c406..a8cc33505 100644
--- a/src/display/canvas_dependency_tracker.js
+++ b/src/display/canvas_dependency_tracker.js
@@ -50,17 +50,11 @@ class BBoxReader {
   }
 }
 
-const ensureDebugMetadata = (map, key) => {
-  if (!map) {
-    return undefined;
-  }
-  let value = map.get(key);
-  if (!value) {
-    value = { dependencies: new Set(), isRenderingOperation: false };
-    map.set(key, value);
-  }
-  return value;
-};
+const ensureDebugMetadata = (map, key) =>
+  map?.getOrInsertComputed(key, () => ({
+    dependencies: new Set(),
+    isRenderingOperation: false,
+  }));
 
 /**
  * @typedef {"lineWidth" | "lineCap" | "lineJoin" | "miterLimit" | "dash" |