angular-cn/packages/benchpress/src/sample_description.ts

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/**
* @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
*/
feat(core): Add type information to injector.get() (#13785) - Introduce `InjectionToken<T>` which is a parameterized and type-safe version of `OpaqueToken`. DEPRECATION: - `OpaqueToken` is now deprecated, use `InjectionToken<T>` instead. - `Injector.get(token: any, notFoundValue?: any): any` is now deprecated use the same method which is now overloaded as `Injector.get<T>(token: Type<T>|InjectionToken<T>, notFoundValue?: T): T;`. Migration - Replace `OpaqueToken` with `InjectionToken<?>` and parameterize it. - Migrate your code to only use `Type<?>` or `InjectionToken<?>` as injection tokens. Using other tokens will not be supported in the future. BREAKING CHANGE: - Because `injector.get()` is now parameterize it is possible that code which used to work no longer type checks. Example would be if one injects `Foo` but configures it as `{provide: Foo, useClass: MockFoo}`. The injection instance will be that of `MockFoo` but the type will be `Foo` instead of `any` as in the past. This means that it was possible to call a method on `MockFoo` in the past which now will fail type check. See this example: ``` class Foo {} class MockFoo extends Foo { setupMock(); } var PROVIDERS = [ {provide: Foo, useClass: MockFoo} ]; ... function myTest(injector: Injector) { var foo = injector.get(Foo); // This line used to work since `foo` used to be `any` before this // change, it will now be `Foo`, and `Foo` does not have `setUpMock()`. // The fix is to downcast: `injector.get(Foo) as MockFoo`. foo.setUpMock(); } ``` PR Close #13785
2017-01-03 19:54:46 -05:00
import {InjectionToken} from '@angular/core';
import {Options} from './common_options';
import {Metric} from './metric';
import {Validator} from './validator';
/**
* SampleDescription merges all available descriptions about a sample
*/
export class SampleDescription {
static PROVIDERS = [{
provide: SampleDescription,
useFactory:
(metric: Metric, id: string, forceGc: boolean, userAgent: string, validator: Validator,
defaultDesc: {[key: string]: string}, userDesc: {[key: string]: string}) =>
new SampleDescription(
id,
[
{'forceGc': forceGc, 'userAgent': userAgent}, validator.describe(), defaultDesc,
userDesc
],
metric.describe()),
deps: [
Metric, Options.SAMPLE_ID, Options.FORCE_GC, Options.USER_AGENT, Validator,
Options.DEFAULT_DESCRIPTION, Options.SAMPLE_DESCRIPTION
]
}];
description: {[key: string]: any};
constructor(
public id: string, descriptions: Array<{[key: string]: any}>,
public metrics: {[key: string]: any}) {
this.description = {};
descriptions.forEach(description => {
Object.keys(description).forEach(prop => { this.description[prop] = description[prop]; });
});
}
toJson() { return {'id': this.id, 'description': this.description, 'metrics': this.metrics}; }
}