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2866355872
In general, we can't assume all applications implement the full `ng` contract as many are older Angular application which pre-date the current interface. As a result, it is safer to type this as a `Partial`. For now, I just added non-null assertions at all current usage locations, as we do generally feature detect before using these fields. However, hopefully this `Partial` type will make it harder to accidentally call a function which might not be supported. PR Close #60209
51 lines
1.3 KiB
TypeScript
51 lines
1.3 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.dev/license
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*/
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import type {ɵGlobalDevModeUtils as GlobalDevModeUtils} from '@angular/core';
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/**
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* Returns a handle to window.ng APIs (global angular debugging).
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*
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* @returns window.ng
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*/
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export const ngDebugClient = () => (window as any).ng as Partial<GlobalDevModeUtils['ng']>;
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/**
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* Checks whether a given debug API is supported within window.ng
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*
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* @returns boolean
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*/
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export function ngDebugApiIsSupported(api: keyof GlobalDevModeUtils['ng']): boolean {
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const ng = ngDebugClient();
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return typeof ng[api] === 'function';
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}
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/**
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* Checks whether Dependency Injection debug API is supported within window.ng
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*
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* @returns boolean
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*/
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export function ngDebugDependencyInjectionApiIsSupported(): boolean {
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if (!ngDebugApiIsSupported('getInjector')) {
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return false;
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}
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if (!ngDebugApiIsSupported('ɵgetInjectorResolutionPath')) {
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return false;
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}
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if (!ngDebugApiIsSupported('ɵgetDependenciesFromInjectable')) {
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return false;
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}
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if (!ngDebugApiIsSupported('ɵgetInjectorProviders')) {
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return false;
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}
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if (!ngDebugApiIsSupported('ɵgetInjectorMetadata')) {
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return false;
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}
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return true;
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}
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