2ebe2bcb2f
Previously, injector definitions contained a `factory` property that
was used to create a new instance of the associated NgModule class.
Now this factory has been moved to its own `ɵfac` static property on the
NgModule class itself. This is inline with how directives, components and
pipes are created.
There is a small size increase to bundle sizes for each NgModule class,
because the `ɵfac` takes up a bit more space:
Before:
```js
let a = (() => {
class n {}
return n.\u0275mod = c.Cb({type: n}),
n.\u0275inj = c.Bb({factory: function(t) { return new (t || n) }, imports: [[e.a.forChild(s)], e.a]}),
n
})(),
```
After:
```js
let a = (() => {
class n {}
return n.\u0275fac = function(t) { return new (t || n) },
n.\u0275mod = c.Cb({type: n}),
n.\u0275inj = c.Bb({imports: [[r.a.forChild(s)], r.a]}),
n
})(),
```
In other words `n.\u0275fac = ` is longer than `factory: ` (by 5 characters)
and only because the tooling insists on encoding `ɵ` as `\u0275`.
This can be mitigated in a future PR by only generating the `ɵfac` property
if it is actually needed.
PR Close #41022
39 lines
933 B
TypeScript
39 lines
933 B
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.io/license
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*/
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import {ɵcreateInjector as createInjector, ɵɵdefineInjectable, ɵɵdefineInjector} from '@angular/core';
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export class RootService {
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static ɵprov = ɵɵdefineInjectable({
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token: RootService,
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providedIn: 'root',
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factory: () => new RootService(),
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});
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}
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export class ScopedService {
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static ɵprov = ɵɵdefineInjectable({
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token: ScopedService,
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providedIn: null,
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factory: () => new ScopedService(),
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});
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doSomething(): void {
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// tslint:disable-next-line:no-console
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console.log('Ensure this isn\'t tree-shaken.');
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}
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}
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export class DefinedInjector {
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static ɵinj = ɵɵdefineInjector({
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providers: [ScopedService],
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});
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}
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export const INJECTOR = createInjector(DefinedInjector);
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