bootstrap: lazy-load Performance.prototype.timeOrigin

joyeecheung · Jan 31, 2023 · 4d7d200 · 4d7d200
1 parent fcfde34
commit 4d7d200
Show file tree

Hide file tree

Showing 2 changed files with 14 additions and 16 deletions.
diff --git a/lib/internal/perf/performance.js b/lib/internal/perf/performance.js
@@ -206,15 +206,24 @@ ObjectDefineProperties(Performance.prototype, {
     enumerable: false,
     value: timerify,
   },
-  // This would be updated during pre-execution in case
-  // the process is launched from a snapshot.
-  // TODO(joyeecheung): we may want to warn about access to
-  // this during snapshot building.
   timeOrigin: {
     __proto__: null,
     configurable: true,
     enumerable: true,
-    value: getTimeOriginTimestamp(),
+    get() {
+      let value = getTimeOriginTimestamp();
+      ObjectDefineProperty(Performance.prototype, 'timeOrigin', {
+        __proto__: null,
+        value,
+      });
+      return value;
+    },
+    set(value) {
+      ObjectDefineProperty(Performance.prototype, 'timeOrigin', {
+        __proto__: null,
+        value,
+      });
+    }
   },
   toJSON: {
     __proto__: null,
@@ -224,15 +233,6 @@ ObjectDefineProperties(Performance.prototype, {
   }
 });
 
-function refreshTimeOrigin() {
-  ObjectDefineProperty(Performance.prototype, 'timeOrigin', {
-    __proto__: null,
-    configurable: true,
-    enumerable: true,
-    value: getTimeOriginTimestamp(),
-  });
-}
-
 const performance = new InternalPerformance();
 
 function dispatchBufferFull(type) {
@@ -246,5 +246,4 @@ setDispatchBufferFull(dispatchBufferFull);
 module.exports = {
   Performance,
   performance,
-  refreshTimeOrigin
 };
diff --git a/lib/internal/process/pre_execution.js b/lib/internal/process/pre_execution.js
@@ -386,7 +386,6 @@ function setupTraceCategoryState() {
 }
 
 function setupPerfHooks() {
-  require('internal/perf/performance').refreshTimeOrigin();
   require('internal/perf/utils').refreshTimeOrigin();
 }