-
Notifications
You must be signed in to change notification settings - Fork 25.3k
/
injectable.ts
102 lines (91 loc) · 3.31 KB
/
injectable.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
/**
* @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
*/
import {Type} from '../interface/type';
import {TypeDecorator, makeDecorator} from '../util/decorators';
import {InjectableType, getInjectableDef, ɵɵInjectableDef, ɵɵdefineInjectable} from './interface/defs';
import {ClassSansProvider, ConstructorSansProvider, ExistingSansProvider, FactorySansProvider, StaticClassSansProvider, ValueSansProvider} from './interface/provider';
import {compileInjectable as render3CompileInjectable} from './jit/injectable';
import {convertInjectableProviderToFactory} from './util';
/**
* Injectable providers used in `@Injectable` decorator.
*
* @publicApi
*/
export type InjectableProvider = ValueSansProvider | ExistingSansProvider |
StaticClassSansProvider | ConstructorSansProvider | FactorySansProvider | ClassSansProvider;
/**
* Type of the Injectable decorator / constructor function.
*
* @publicApi
*/
export interface InjectableDecorator {
/**
* Marks a class as available to `Injector` for creation.
*
* @see [Introduction to Services and DI](guide/architecture-services)
* @see [Dependency Injection Guide](guide/dependency-injection)
*
* @usageNotes
*
* The following example shows how service classes are properly marked as
* injectable.
*Z
* <code-example path="core/di/ts/metadata_spec.ts" region="Injectable"></code-example>
*
*/
(): TypeDecorator;
(options?: {providedIn: Type<any>| 'root' | null}&InjectableProvider): TypeDecorator;
new (): Injectable;
new (options?: {providedIn: Type<any>| 'root' | null}&InjectableProvider): Injectable;
}
/**
* Type of the Injectable metadata.
*
* @publicApi
*/
export interface Injectable {
/**
* Determines which injectors will provide the injectable,
* by either associating it with an @NgModule or other `InjectorType`,
* or by specifying that this injectable should be provided in the
* 'root' injector, which will be the application-level injector in most apps.
*/
providedIn?: Type<any>|'root'|null;
}
/**
* Injectable decorator and metadata.
*
* @Annotation
* @publicApi
*/
export const Injectable: InjectableDecorator = makeDecorator(
'Injectable', undefined, undefined, undefined,
(type: Type<any>, meta: Injectable) => SWITCH_COMPILE_INJECTABLE(type as any, meta));
/**
* Type representing injectable service.
*
* @publicApi
*/
export interface InjectableType<T> extends Type<T> { ngInjectableDef: ɵɵInjectableDef<T>; }
/**
* Supports @Injectable() in JIT mode for Render2.
*/
function render2CompileInjectable(
injectableType: InjectableType<any>,
options: {providedIn?: Type<any>| 'root' | null} & InjectableProvider): void {
if (options && options.providedIn !== undefined && !getInjectableDef(injectableType)) {
injectableType.ngInjectableDef = ɵɵdefineInjectable({
providedIn: options.providedIn,
factory: convertInjectableProviderToFactory(injectableType, options),
});
}
}
export const SWITCH_COMPILE_INJECTABLE__POST_R3__ = render3CompileInjectable;
const SWITCH_COMPILE_INJECTABLE__PRE_R3__ = render2CompileInjectable;
const SWITCH_COMPILE_INJECTABLE: typeof render3CompileInjectable =
SWITCH_COMPILE_INJECTABLE__PRE_R3__;