Files
angular__angular/packages/zone.js/lib/browser/message-port.ts
Doug Parker 7c1991048b refactor(zone.js): wrap Zone.__load_patch calls in exported functions (#53443)
This removes top-level side effects from each of these files and drops the dependency on global `Zone`, instead allowing it to be provided to each patch as a parameter.

Most of these are pure mechanical transformations. A couple notable files which were somewhat unique:

* `async-test.ts`, `fake-async-test.ts`, and `wtf.ts` had unique IIFE usage and patch `Zone` itself. This removes the IIFE and exports the function instead.
* `jest.ts` and `jasmine.ts` have a unique `jest` global usage which needs to be declared.

PR Close #53443
2024-03-15 18:11:33 -07:00

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782 B
TypeScript

/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {ZoneType} from '../zone-impl';
export function patchMessagePort(Zone: ZoneType): void {
/**
* Monkey patch `MessagePort.prototype.onmessage` and `MessagePort.prototype.onmessageerror`
* properties to make the callback in the zone when the value are set.
*/
Zone.__load_patch('MessagePort', (global: any, Zone: ZoneType, api: _ZonePrivate) => {
const MessagePort = global['MessagePort'];
if (typeof MessagePort !== 'undefined' && MessagePort.prototype) {
api.patchOnProperties(MessagePort.prototype, ['message', 'messageerror']);
}
});
}