From 6c7e1e61c69959f86dc856a4e0b63f8fc8ea3b2c Mon Sep 17 00:00:00 2001
From: Doug Parker <dgp1130@users.noreply.github.com>
Date: Thu, 7 Dec 2023 17:28:13 -0800
Subject: [PATCH] refactor(zone.js): export Zone initialization function
 instead of invoking it as an IIFE (#53443)

This removes the top-level side effects from this file. Indenting is left as-is to minimize changes.

PR Close #53443
---
 packages/zone.js/lib/zone-impl.ts | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/packages/zone.js/lib/zone-impl.ts b/packages/zone.js/lib/zone-impl.ts
index 73ebe43d94f..545c2c2d54e 100644
--- a/packages/zone.js/lib/zone-impl.ts
+++ b/packages/zone.js/lib/zone-impl.ts
@@ -676,7 +676,7 @@ export type AmbientZone = Zone;
 
 // Initialize global `Zone` constant.
 const global = globalThis as any;
-(function() {
+export function initZone(): ZoneType {
 const performance: {mark(name: string): void; measure(name: string, label: string): void;} =
     global['performance'];
 function mark(name: string) {
@@ -1448,7 +1448,5 @@ let _numberOfNestedTaskFrames = 0;
 function noop() {}
 
 performanceMeasure('Zone', 'Zone');
-return global['Zone'] = ZoneImpl;
-})();
-
-export {};
+return ZoneImpl;
+}