@angular/core
Version:
Angular - the core framework
255 lines • 22.9 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,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
*/
/** @type {?} */
export const TNODE = 8;
/** @type {?} */
export const PARENT_INJECTOR = 8;
/** @type {?} */
export const INJECTOR_BLOOM_PARENT_SIZE = 9;
/**
* Represents a relative location of parent injector.
*
* The interfaces encodes number of parents `LView`s to traverse and index in the `LView`
* pointing to the parent injector.
* @record
*/
export function RelativeInjectorLocation() { }
if (false) {
/** @type {?} */
RelativeInjectorLocation.prototype.__brand__;
}
/** @enum {number} */
const RelativeInjectorLocationFlags = {
InjectorIndexMask: 32767,
ViewOffsetShift: 16,
NO_PARENT: -1,
};
export { RelativeInjectorLocationFlags };
/** @type {?} */
export const NO_PARENT_INJECTOR = (/** @type {?} */ (-1));
/**
* Each injector is saved in 9 contiguous slots in `LView` and 9 contiguous slots in
* `TView.data`. This allows us to store information about the current node's tokens (which
* can be shared in `TView`) as well as the tokens of its ancestor nodes (which cannot be
* shared, so they live in `LView`).
*
* Each of these slots (aside from the last slot) contains a bloom filter. This bloom filter
* determines whether a directive is available on the associated node or not. This prevents us
* from searching the directives array at this level unless it's probable the directive is in it.
*
* See: https://en.wikipedia.org/wiki/Bloom_filter for more about bloom filters.
*
* Because all injectors have been flattened into `LView` and `TViewData`, they cannot typed
* using interfaces as they were previously. The start index of each `LInjector` and `TInjector`
* will differ based on where it is flattened into the main array, so it's not possible to know
* the indices ahead of time and save their types here. The interfaces are still included here
* for documentation purposes.
*
* export interface LInjector extends Array<any> {
*
* // Cumulative bloom for directive IDs 0-31 (IDs are % BLOOM_SIZE)
* [0]: number;
*
* // Cumulative bloom for directive IDs 32-63
* [1]: number;
*
* // Cumulative bloom for directive IDs 64-95
* [2]: number;
*
* // Cumulative bloom for directive IDs 96-127
* [3]: number;
*
* // Cumulative bloom for directive IDs 128-159
* [4]: number;
*
* // Cumulative bloom for directive IDs 160 - 191
* [5]: number;
*
* // Cumulative bloom for directive IDs 192 - 223
* [6]: number;
*
* // Cumulative bloom for directive IDs 224 - 255
* [7]: number;
*
* // We need to store a reference to the injector's parent so DI can keep looking up
* // the injector tree until it finds the dependency it's looking for.
* [PARENT_INJECTOR]: number;
* }
*
* export interface TInjector extends Array<any> {
*
* // Shared node bloom for directive IDs 0-31 (IDs are % BLOOM_SIZE)
* [0]: number;
*
* // Shared node bloom for directive IDs 32-63
* [1]: number;
*
* // Shared node bloom for directive IDs 64-95
* [2]: number;
*
* // Shared node bloom for directive IDs 96-127
* [3]: number;
*
* // Shared node bloom for directive IDs 128-159
* [4]: number;
*
* // Shared node bloom for directive IDs 160 - 191
* [5]: number;
*
* // Shared node bloom for directive IDs 192 - 223
* [6]: number;
*
* // Shared node bloom for directive IDs 224 - 255
* [7]: number;
*
* // Necessary to find directive indices for a particular node.
* [TNODE]: TElementNode|TElementContainerNode|TContainerNode;
* }
*/
/**
* Factory for creating instances of injectors in the NodeInjector.
*
* This factory is complicated by the fact that it can resolve `multi` factories as well.
*
* NOTE: Some of the fields are optional which means that this class has two hidden classes.
* - One without `multi` support (most common)
* - One with `multi` values, (rare).
*
* Since VMs can cache up to 4 inline hidden classes this is OK.
*
* - Single factory: Only `resolving` and `factory` is defined.
* - `providers` factory: `componentProviders` is a number and `index = -1`.
* - `viewProviders` factory: `componentProviders` is a number and `index` points to `providers`.
*/
export class NodeInjectorFactory {
/**
* @param {?} factory
* @param {?} isViewProvider
* @param {?} injectImplementation
*/
constructor(factory,
/**
* Set to `true` if the token is declared in `viewProviders` (or if it is component).
*/
isViewProvider, injectImplementation) {
this.factory = factory;
/**
* Marker set to true during factory invocation to see if we get into recursive loop.
* Recursive loop causes an error to be displayed.
*/
this.resolving = false;
this.canSeeViewProviders = isViewProvider;
this.injectImpl = injectImplementation;
}
}
if (false) {
/**
* The inject implementation to be activated when using the factory.
* @type {?}
*/
NodeInjectorFactory.prototype.injectImpl;
/**
* Marker set to true during factory invocation to see if we get into recursive loop.
* Recursive loop causes an error to be displayed.
* @type {?}
*/
NodeInjectorFactory.prototype.resolving;
/**
* Marks that the token can see other Tokens declared in `viewProviders` on the same node.
* @type {?}
*/
NodeInjectorFactory.prototype.canSeeViewProviders;
/**
* An array of factories to use in case of `multi` provider.
* @type {?}
*/
NodeInjectorFactory.prototype.multi;
/**
* Number of `multi`-providers which belong to the component.
*
* This is needed because when multiple components and directives declare the `multi` provider
* they have to be concatenated in the correct order.
*
* Example:
*
* If we have a component and directive active an a single element as declared here
* ```
* component:
* provides: [ {provide: String, useValue: 'component', multi: true} ],
* viewProvides: [ {provide: String, useValue: 'componentView', multi: true} ],
*
* directive:
* provides: [ {provide: String, useValue: 'directive', multi: true} ],
* ```
*
* Then the expected results are:
*
* ```
* providers: ['component', 'directive']
* viewProviders: ['component', 'componentView', 'directive']
* ```
*
* The way to think about it is that the `viewProviders` have been inserted after the component
* but before the directives, which is why we need to know how many `multi`s have been declared by
* the component.
* @type {?}
*/
NodeInjectorFactory.prototype.componentProviders;
/**
* Current index of the Factory in the `data`. Needed for `viewProviders` and `providers` merging.
* See `providerFactory`.
* @type {?}
*/
NodeInjectorFactory.prototype.index;
/**
* Because the same `multi` provider can be declared in `provides` and `viewProvides` it is
* possible for `viewProvides` to shadow the `provides`. For this reason we store the
* `provideFactory` of the `providers` so that `providers` can be extended with `viewProviders`.
*
* Example:
*
* Given:
* ```
* provides: [ {provide: String, useValue: 'all', multi: true} ],
* viewProvides: [ {provide: String, useValue: 'viewOnly', multi: true} ],
* ```
*
* We have to return `['all']` in case of content injection, but `['all', 'viewOnly']` in case
* of view injection. We further have to make sure that the shared instances (in our case
* `all`) are the exact same instance in both the content as well as the view injection. (We
* have to make sure that we don't double instantiate.) For this reason the `viewProvides`
* `Factory` has a pointer to the shadowed `provides` factory so that it can instantiate the
* `providers` (`['all']`) and then extend it with `viewProviders` (`['all'] + ['viewOnly'] =
* ['all', 'viewOnly']`).
* @type {?}
*/
NodeInjectorFactory.prototype.providerFactory;
/**
* Factory to invoke in order to create a new instance.
* @type {?}
*/
NodeInjectorFactory.prototype.factory;
}
/**
* @param {?} obj
* @return {?}
*/
export function isFactory(obj) {
// See: https://jsperf.com/instanceof-vs-getprototypeof
return obj !== null && typeof obj == 'object' &&
Object.getPrototypeOf(obj) == NodeInjectorFactory.prototype;
}
// Note: This hack is necessary so we don't erroneously get a circular dependency
// failure based on types.
/** @type {?} */
export const unusedValueExportToPlacateAjd = 1;
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All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {InjectionToken} from '../../di/injection_token';\nimport {InjectFlags} from '../../di/interface/injector';\nimport {Type} from '../../interface/type';\n\nimport {TElementNode} from './node';\nimport {LView, TData} from './view';\n\nexport const TNODE = 8;\nexport const PARENT_INJECTOR = 8;\nexport const INJECTOR_BLOOM_PARENT_SIZE = 9;\n\n/**\n * Represents a relative location of parent injector.\n *\n * The interfaces encodes number of parents `LView`s to traverse and index in the `LView`\n * pointing to the parent injector.\n */\nexport interface RelativeInjectorLocation { __brand__: 'RelativeInjectorLocationFlags'; }\n\nexport const enum RelativeInjectorLocationFlags {\n  InjectorIndexMask = 0b111111111111111,\n  ViewOffsetShift = 16,\n  NO_PARENT = -1,\n}\n\nexport const NO_PARENT_INJECTOR: RelativeInjectorLocation = -1 as any;\n\n/**\n * Each injector is saved in 9 contiguous slots in `LView` and 9 contiguous slots in\n * `TView.data`. This allows us to store information about the current node's tokens (which\n * can be shared in `TView`) as well as the tokens of its ancestor nodes (which cannot be\n * shared, so they live in `LView`).\n *\n * Each of these slots (aside from the last slot) contains a bloom filter. This bloom filter\n * determines whether a directive is available on the associated node or not. This prevents us\n * from searching the directives array at this level unless it's probable the directive is in it.\n *\n * See: https://en.wikipedia.org/wiki/Bloom_filter for more about bloom filters.\n *\n * Because all injectors have been flattened into `LView` and `TViewData`, they cannot typed\n * using interfaces as they were previously. The start index of each `LInjector` and `TInjector`\n * will differ based on where it is flattened into the main array, so it's not possible to know\n * the indices ahead of time and save their types here. The interfaces are still included here\n * for documentation purposes.\n *\n * export interface LInjector extends Array<any> {\n *\n *    // Cumulative bloom for directive IDs 0-31  (IDs are % BLOOM_SIZE)\n *    [0]: number;\n *\n *    // Cumulative bloom for directive IDs 32-63\n *    [1]: number;\n *\n *    // Cumulative bloom for directive IDs 64-95\n *    [2]: number;\n *\n *    // Cumulative bloom for directive IDs 96-127\n *    [3]: number;\n *\n *    // Cumulative bloom for directive IDs 128-159\n *    [4]: number;\n *\n *    // Cumulative bloom for directive IDs 160 - 191\n *    [5]: number;\n *\n *    // Cumulative bloom for directive IDs 192 - 223\n *    [6]: number;\n *\n *    // Cumulative bloom for directive IDs 224 - 255\n *    [7]: number;\n *\n *    // We need to store a reference to the injector's parent so DI can keep looking up\n *    // the injector tree until it finds the dependency it's looking for.\n *    [PARENT_INJECTOR]: number;\n * }\n *\n * export interface TInjector extends Array<any> {\n *\n *    // Shared node bloom for directive IDs 0-31  (IDs are % BLOOM_SIZE)\n *    [0]: number;\n *\n *    // Shared node bloom for directive IDs 32-63\n *    [1]: number;\n *\n *    // Shared node bloom for directive IDs 64-95\n *    [2]: number;\n *\n *    // Shared node bloom for directive IDs 96-127\n *    [3]: number;\n *\n *    // Shared node bloom for directive IDs 128-159\n *    [4]: number;\n *\n *    // Shared node bloom for directive IDs 160 - 191\n *    [5]: number;\n *\n *    // Shared node bloom for directive IDs 192 - 223\n *    [6]: number;\n *\n *    // Shared node bloom for directive IDs 224 - 255\n *    [7]: number;\n *\n *    // Necessary to find directive indices for a particular node.\n *    [TNODE]: TElementNode|TElementContainerNode|TContainerNode;\n *  }\n */\n\n/**\n* Factory for creating instances of injectors in the NodeInjector.\n*\n* This factory is complicated by the fact that it can resolve `multi` factories as well.\n*\n* NOTE: Some of the fields are optional which means that this class has two hidden classes.\n* - One without `multi` support (most common)\n* - One with `multi` values, (rare).\n*\n* Since VMs can cache up to 4 inline hidden classes this is OK.\n*\n* - Single factory: Only `resolving` and `factory` is defined.\n* - `providers` factory: `componentProviders` is a number and `index = -1`.\n* - `viewProviders` factory: `componentProviders` is a number and `index` points to `providers`.\n*/\nexport class NodeInjectorFactory {\n  /**\n   * The inject implementation to be activated when using the factory.\n   */\n  injectImpl: null|(<T>(token: Type<T>|InjectionToken<T>, flags: InjectFlags) => T);\n\n  /**\n   * Marker set to true during factory invocation to see if we get into recursive loop.\n   * Recursive loop causes an error to be displayed.\n   */\n  resolving = false;\n\n  /**\n   * Marks that the token can see other Tokens declared in `viewProviders` on the same node.\n   */\n  canSeeViewProviders: boolean;\n\n  /**\n   * An array of factories to use in case of `multi` provider.\n   */\n  multi?: Array<() => any>;\n\n  /**\n   * Number of `multi`-providers which belong to the component.\n   *\n   * This is needed because when multiple components and directives declare the `multi` provider\n   * they have to be concatenated in the correct order.\n   *\n   * Example:\n   *\n   * If we have a component and directive active an a single element as declared here\n   * ```\n   * component:\n   *   provides: [ {provide: String, useValue: 'component', multi: true} ],\n   *   viewProvides: [ {provide: String, useValue: 'componentView', multi: true} ],\n   *\n   * directive:\n   *   provides: [ {provide: String, useValue: 'directive', multi: true} ],\n   * ```\n   *\n   * Then the expected results are:\n   *\n   * ```\n   * providers: ['component', 'directive']\n   * viewProviders: ['component', 'componentView', 'directive']\n   * ```\n   *\n   * The way to think about it is that the `viewProviders` have been inserted after the component\n   * but before the directives, which is why we need to know how many `multi`s have been declared by\n   * the component.\n   */\n  componentProviders?: number;\n\n  /**\n   * Current index of the Factory in the `data`. Needed for `viewProviders` and `providers` merging.\n   * See `providerFactory`.\n   */\n  index?: number;\n\n  /**\n   * Because the same `multi` provider can be declared in `provides` and `viewProvides` it is\n   * possible for `viewProvides` to shadow the `provides`. For this reason we store the\n   * `provideFactory` of the `providers` so that `providers` can be extended with `viewProviders`.\n   *\n   * Example:\n   *\n   * Given:\n   * ```\n   * provides: [ {provide: String, useValue: 'all', multi: true} ],\n   * viewProvides: [ {provide: String, useValue: 'viewOnly', multi: true} ],\n   * ```\n   *\n   * We have to return `['all']` in case of content injection, but `['all', 'viewOnly']` in case\n   * of view injection. We further have to make sure that the shared instances (in our case\n   * `all`) are the exact same instance in both the content as well as the view injection. (We\n   * have to make sure that we don't double instantiate.) For this reason the `viewProvides`\n   * `Factory` has a pointer to the shadowed `provides` factory so that it can instantiate the\n   * `providers` (`['all']`) and then extend it with `viewProviders` (`['all'] + ['viewOnly'] =\n   * ['all', 'viewOnly']`).\n   */\n  providerFactory?: NodeInjectorFactory|null;\n\n\n  constructor(\n      /**\n       * Factory to invoke in order to create a new instance.\n       */\n      public factory:\n          (this: NodeInjectorFactory, _: null,\n           /**\n            * array where injectables tokens are stored. This is used in\n            * case of an error reporting to produce friendlier errors.\n            */\n           tData: TData,\n           /**\n            * array where existing instances of injectables are stored. This is used in case\n            * of multi shadow is needed. See `multi` field documentation.\n            */\n           lView: LView,\n           /**\n            * The TNode of the same element injector.\n            */\n           tNode: TElementNode) => any,\n      /**\n       * Set to `true` if the token is declared in `viewProviders` (or if it is component).\n       */\n      isViewProvider: boolean,\n      injectImplementation: null|(<T>(token: Type<T>|InjectionToken<T>, flags: InjectFlags) => T)) {\n    this.canSeeViewProviders = isViewProvider;\n    this.injectImpl = injectImplementation;\n  }\n}\n\nexport function isFactory(obj: any): obj is NodeInjectorFactory {\n  // See: https://jsperf.com/instanceof-vs-getprototypeof\n  return obj !== null && typeof obj == 'object' &&\n      Object.getPrototypeOf(obj) == NodeInjectorFactory.prototype;\n}\n\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\nexport const unusedValueExportToPlacateAjd = 1;\n"]}