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feat(core): Add "AbstractType<T>" interface #29295

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feat(core): Add "AbstractType<T>" interface #29295

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2 changes: 1 addition & 1 deletion packages/core/src/core.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ export * from './platform_core_providers';
export {TRANSLATIONS, TRANSLATIONS_FORMAT, LOCALE_ID, MissingTranslationStrategy} from './i18n/tokens';
export {ApplicationModule} from './application_module';
export {wtfCreateScope, wtfLeave, wtfStartTimeRange, wtfEndTimeRange, WtfScopeFn} from './profile/profile';
export {Type} from './interface/type';
export {AbstractType, Type} from './interface/type';
export {EventEmitter} from './event_emitter';
export {ErrorHandler} from './error_handler';
export * from './core_private_export';
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10 changes: 10 additions & 0 deletions packages/core/src/interface/type.ts
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Expand Up @@ -22,6 +22,16 @@ export function isType(v: any): v is Type<any> {
return typeof v === 'function';
}

/**
* @description
*
* Represents an abstract class `T`, if applied to a concrete class it would stop being
* instantiatable.
*
* @publicApi
*/
export interface AbstractType<T> extends Function { prototype: T; }

export interface Type<T> extends Function { new (...args: any[]): T; }

export type Mutable<T extends{[x: string]: any}, K extends string> = {
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4 changes: 4 additions & 0 deletions tools/public_api_guard/core/core.d.ts
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@@ -1,3 +1,7 @@
export interface AbstractType<T> extends Function {
prototype: T;
}

export interface AfterContentChecked {
ngAfterContentChecked(): void;
}
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