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Angular-Docs-Cn/packages/forms/src/form_providers.ts
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Andrew Kushnir e88a9c6350 perf(forms): make RadioControlRegistry class tree-shakable (#41126)
This commit makes the `RadioControlRegistry` class tree-shakable by adding the `providedIn` property to its
`@Injectable` decorator. Now if the radio buttons are not used in the app (thus no `RadioControlValueAccessor`
directive is initialized), the `RadioControlRegistry` should not be included into application's prod bundle.

PR Close #41126
2021-03-16 09:35:14 -07:00

69 lines
2.0 KiB
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 {ModuleWithProviders, NgModule} from '@angular/core';
import {InternalFormsSharedModule, NG_MODEL_WITH_FORM_CONTROL_WARNING, REACTIVE_DRIVEN_DIRECTIVES, TEMPLATE_DRIVEN_DIRECTIVES} from './directives';
/**
* Exports the required providers and directives for template-driven forms,
* making them available for import by NgModules that import this module.
*
* Providers associated with this module:
* * `RadioControlRegistry`
*
* @see [Forms Overview](/guide/forms-overview)
* @see [Template-driven Forms Guide](/guide/forms)
*
* @publicApi
*/
@NgModule({
declarations: TEMPLATE_DRIVEN_DIRECTIVES,
exports: [InternalFormsSharedModule, TEMPLATE_DRIVEN_DIRECTIVES]
})
export class FormsModule {
}
/**
* Exports the required infrastructure and directives for reactive forms,
* making them available for import by NgModules that import this module.
*
* Providers associated with this module:
* * `FormBuilder`
* * `RadioControlRegistry`
*
* @see [Forms Overview](guide/forms-overview)
* @see [Reactive Forms Guide](guide/reactive-forms)
*
* @publicApi
*/
@NgModule({
declarations: [REACTIVE_DRIVEN_DIRECTIVES],
exports: [InternalFormsSharedModule, REACTIVE_DRIVEN_DIRECTIVES]
})
export class ReactiveFormsModule {
/**
* @description
* Provides options for configuring the reactive forms module.
*
* @param opts An object of configuration options
* * `warnOnNgModelWithFormControl` Configures when to emit a warning when an `ngModel`
* binding is used with reactive form directives.
*/
static withConfig(opts: {
/** @deprecated as of v6 */ warnOnNgModelWithFormControl: 'never'|'once'|'always'
}): ModuleWithProviders<ReactiveFormsModule> {
return {
ngModule: ReactiveFormsModule,
providers: [
{provide: NG_MODEL_WITH_FORM_CONTROL_WARNING, useValue: opts.warnOnNgModelWithFormControl}
]
};
}
}