@angular/core
Version:
Angular - the core framework
138 lines (136 loc) • 4.39 kB
TypeScript
import { Type } from '../type';
import { ReflectiveInjector } from './reflective_injector';
import { ReflectiveKey } from './reflective_key';
export interface InjectionError extends Error {
keys: ReflectiveKey[];
injectors: ReflectiveInjector[];
constructResolvingMessage: (keys: ReflectiveKey[]) => string;
addKey(injector: ReflectiveInjector, key: ReflectiveKey): void;
}
/**
* Thrown when trying to retrieve a dependency by key from {@link Injector}, but the
* {@link Injector} does not have a {@link Provider} for the given key.
*
* ### Example ([live demo](http://plnkr.co/edit/vq8D3FRB9aGbnWJqtEPE?p=preview))
*
* ```typescript
* class A {
* constructor(b:B) {}
* }
*
* expect(() => Injector.resolveAndCreate([A])).toThrowError();
* ```
*/
export declare function noProviderError(injector: ReflectiveInjector, key: ReflectiveKey): InjectionError;
/**
* Thrown when dependencies form a cycle.
*
* ### Example ([live demo](http://plnkr.co/edit/wYQdNos0Tzql3ei1EV9j?p=info))
*
* ```typescript
* var injector = Injector.resolveAndCreate([
* {provide: "one", useFactory: (two) => "two", deps: [[new Inject("two")]]},
* {provide: "two", useFactory: (one) => "one", deps: [[new Inject("one")]]}
* ]);
*
* expect(() => injector.get("one")).toThrowError();
* ```
*
* Retrieving `A` or `B` throws a `CyclicDependencyError` as the graph above cannot be constructed.
*/
export declare function cyclicDependencyError(injector: ReflectiveInjector, key: ReflectiveKey): InjectionError;
/**
* Thrown when a constructing type returns with an Error.
*
* The `InstantiationError` class contains the original error plus the dependency graph which caused
* this object to be instantiated.
*
* ### Example ([live demo](http://plnkr.co/edit/7aWYdcqTQsP0eNqEdUAf?p=preview))
*
* ```typescript
* class A {
* constructor() {
* throw new Error('message');
* }
* }
*
* var injector = Injector.resolveAndCreate([A]);
* try {
* injector.get(A);
* } catch (e) {
* expect(e instanceof InstantiationError).toBe(true);
* expect(e.originalException.message).toEqual("message");
* expect(e.originalStack).toBeDefined();
* }
* ```
*/
export declare function instantiationError(injector: ReflectiveInjector, originalException: any, originalStack: any, key: ReflectiveKey): InjectionError;
/**
* Thrown when an object other then {@link Provider} (or `Type`) is passed to {@link Injector}
* creation.
*
* ### Example ([live demo](http://plnkr.co/edit/YatCFbPAMCL0JSSQ4mvH?p=preview))
*
* ```typescript
* expect(() => Injector.resolveAndCreate(["not a type"])).toThrowError();
* ```
*/
export declare function invalidProviderError(provider: any): Error;
/**
* Thrown when the class has no annotation information.
*
* Lack of annotation information prevents the {@link Injector} from determining which dependencies
* need to be injected into the constructor.
*
* ### Example ([live demo](http://plnkr.co/edit/rHnZtlNS7vJOPQ6pcVkm?p=preview))
*
* ```typescript
* class A {
* constructor(b) {}
* }
*
* expect(() => Injector.resolveAndCreate([A])).toThrowError();
* ```
*
* This error is also thrown when the class not marked with {@link Injectable} has parameter types.
*
* ```typescript
* class B {}
*
* class A {
* constructor(b:B) {} // no information about the parameter types of A is available at runtime.
* }
*
* expect(() => Injector.resolveAndCreate([A,B])).toThrowError();
* ```
* @stable
*/
export declare function noAnnotationError(typeOrFunc: Type<any> | Function, params: any[][]): Error;
/**
* Thrown when getting an object by index.
*
* ### Example ([live demo](http://plnkr.co/edit/bRs0SX2OTQiJzqvjgl8P?p=preview))
*
* ```typescript
* class A {}
*
* var injector = Injector.resolveAndCreate([A]);
*
* expect(() => injector.getAt(100)).toThrowError();
* ```
* @stable
*/
export declare function outOfBoundsError(index: number): Error;
/**
* Thrown when a multi provider and a regular provider are bound to the same token.
*
* ### Example
*
* ```typescript
* expect(() => Injector.resolveAndCreate([
* { provide: "Strings", useValue: "string1", multi: true},
* { provide: "Strings", useValue: "string2", multi: false}
* ])).toThrowError();
* ```
*/
export declare function mixingMultiProvidersWithRegularProvidersError(provider1: any, provider2: any): Error;