From 1dfcd171d2a9953e5823c8a1f538904842c4aa56 Mon Sep 17 00:00:00 2001
From: JiaLiPassion <JiaLi.Passion@gmail.com>
Date: Sun, 25 Feb 2024 00:43:40 +0000
Subject: [PATCH] fix(zone.js): make sure fakeasync use the same id pool with
 native

Close #54323

fakeAsync should use the same timerId pool with native, so they will not
conflict.
---
 .../zone.js/lib/zone-spec/fake-async-test.ts  | 23 ++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/packages/zone.js/lib/zone-spec/fake-async-test.ts b/packages/zone.js/lib/zone-spec/fake-async-test.ts
index e5fa1da7370630..a2215ddede06ee 100644
--- a/packages/zone.js/lib/zone-spec/fake-async-test.ts
+++ b/packages/zone.js/lib/zone-spec/fake-async-test.ts
@@ -61,12 +61,17 @@ const timers = {
   setTimeout: global.setTimeout,
   setInterval: global.setInterval,
   clearTimeout: global.clearTimeout,
-  clearInterval: global.clearInterval
+  clearInterval: global.clearInterval,
+  nativeSetTimeout: (global.setTimeout as any)[Zone.__symbol__('OriginalDelegate')],
+  nativeClearTimeout: (global.clearTimeout as any)[Zone.__symbol__('OriginalDelegate')],
 };
 
+const timeoutCallback = function() {};
+
 class Scheduler {
   // Next scheduler id.
-  public static nextId: number = 1;
+  public static nextNodeJSId: number = 1;
+  public static nextId: number = Scheduler.getNextId();
 
   // Scheduler queue with the tuple of end time and callback function - sorted by end time.
   private _schedulerQueue: ScheduledFunction[] = [];
@@ -79,6 +84,17 @@ class Scheduler {
 
   constructor() {}
 
+  static getNextId() {
+    const id = timers.nativeSetTimeout.call(global, timeoutCallback);
+    timers.nativeClearTimeout.call(global, id);
+    if (typeof id === 'number') {
+      return id;
+    }
+    // in NodeJS, we just use a number for fakeAsync, since it will not
+    // conflict with native TimeoutId
+    return Scheduler.nextNodeJSId++;
+  }
+
   getCurrentTickTime() {
     return this._currentTickTime;
   }
@@ -112,7 +128,8 @@ class Scheduler {
       },
       ...options
     };
-    let currentId = options.id! < 0 ? Scheduler.nextId++ : options.id!;
+    let currentId = options.id! < 0 ? Scheduler.nextId : options.id!;
+    Scheduler.nextId = Scheduler.getNextId();
     let endTime = this._currentTickTime + delay;
 
     // Insert so that scheduler queue remains sorted by end time.