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DestroyRef represents a concept of lifecycle scope where destroy callbacks can be registered. Such callbacks are automatically executed when a given scope ends it lifecycle. In practice the most common lifecycle scopes would be represented by: - a component or en embedded view; - instance of `EnvironnementInjector`. PR Close #49158
33 lines
1.6 KiB
TypeScript
33 lines
1.6 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.io/license
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*/
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import {getClosureSafeProperty} from '../util/property';
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export const NG_COMP_DEF = getClosureSafeProperty({ɵcmp: getClosureSafeProperty});
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export const NG_DIR_DEF = getClosureSafeProperty({ɵdir: getClosureSafeProperty});
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export const NG_PIPE_DEF = getClosureSafeProperty({ɵpipe: getClosureSafeProperty});
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export const NG_MOD_DEF = getClosureSafeProperty({ɵmod: getClosureSafeProperty});
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export const NG_FACTORY_DEF = getClosureSafeProperty({ɵfac: getClosureSafeProperty});
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/**
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* If a directive is diPublic, bloomAdd sets a property on the type with this constant as
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* the key and the directive's unique ID as the value. This allows us to map directives to their
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* bloom filter bit for DI.
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*/
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// TODO(misko): This is wrong. The NG_ELEMENT_ID should never be minified.
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export const NG_ELEMENT_ID = getClosureSafeProperty({__NG_ELEMENT_ID__: getClosureSafeProperty});
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/**
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* The `NG_ENV_ID` field on a DI token indicates special processing in the `EnvironmentInjector`:
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* getting such tokens from the `EnvironmentInjector` will bypass the standard DI resolution
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* strategy and instead will return implementation produced by the `NG_ENV_ID` factory function.
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*
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* This particular retrieval of DI tokens is mostly done to eliminate circular dependencies and
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* improve tree-shaking.
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*/
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export const NG_ENV_ID = getClosureSafeProperty({__NG_ENV_ID__: getClosureSafeProperty});
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