@angular/core
Version:
Angular - the core framework
81 lines • 7.31 kB
JavaScript
/**
* @fileoverview added by tsickle
* Generated from: packages/core/src/change_detection/constants.ts
* @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
*/
/**
* @license
* Copyright Google Inc. 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
*/
/** @enum {number} */
const ChangeDetectionStrategy = {
/**
* Use the `CheckOnce` strategy, meaning that automatic change detection is deactivated
* until reactivated by setting the strategy to `Default` (`CheckAlways`).
* Change detection can still be explicitly invoked.
* This strategy applies to all child directives and cannot be overridden.
*/
OnPush: 0,
/**
* Use the default `CheckAlways` strategy, in which change detection is automatic until
* explicitly deactivated.
*/
Default: 1,
};
export { ChangeDetectionStrategy };
ChangeDetectionStrategy[ChangeDetectionStrategy.OnPush] = 'OnPush';
ChangeDetectionStrategy[ChangeDetectionStrategy.Default] = 'Default';
/** @enum {number} */
const ChangeDetectorStatus = {
/**
* A state in which, after calling `detectChanges()`, the change detector
* state becomes `Checked`, and must be explicitly invoked or reactivated.
*/
CheckOnce: 0,
/**
* A state in which change detection is skipped until the change detector mode
* becomes `CheckOnce`.
*/
Checked: 1,
/**
* A state in which change detection continues automatically until explicitly
* deactivated.
*/
CheckAlways: 2,
/**
* A state in which a change detector sub tree is not a part of the main tree and
* should be skipped.
*/
Detached: 3,
/**
* Indicates that the change detector encountered an error checking a binding
* or calling a directive lifecycle method and is now in an inconsistent state. Change
* detectors in this state do not detect changes.
*/
Errored: 4,
/**
* Indicates that the change detector has been destroyed.
*/
Destroyed: 5,
};
export { ChangeDetectorStatus };
ChangeDetectorStatus[ChangeDetectorStatus.CheckOnce] = 'CheckOnce';
ChangeDetectorStatus[ChangeDetectorStatus.Checked] = 'Checked';
ChangeDetectorStatus[ChangeDetectorStatus.CheckAlways] = 'CheckAlways';
ChangeDetectorStatus[ChangeDetectorStatus.Detached] = 'Detached';
ChangeDetectorStatus[ChangeDetectorStatus.Errored] = 'Errored';
ChangeDetectorStatus[ChangeDetectorStatus.Destroyed] = 'Destroyed';
/**
* Reports whether a given strategy is currently the default for change detection.
* @see `ChangeDetectorStatus` / `ChangeDetectorRef`
* @param {?} changeDetectionStrategy The strategy to check.
* @return {?} True if the given strategy is the current default, false otherwise.
*/
export function isDefaultChangeDetectionStrategy(changeDetectionStrategy) {
return changeDetectionStrategy == null ||
changeDetectionStrategy === ChangeDetectionStrategy.Default;
}
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