angular-cn/modules/angular1_router
Miško Hevery d169c2434e 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
2017-01-17 15:34:54 -06:00
..
lib refactor(facade): inline StringWrapper (#12051) 2016-10-06 15:10:27 -07:00
src feat(core): Add type information to injector.get() (#13785) 2017-01-17 15:34:54 -06:00
test refactor: add license header to JS files & format files (#12081) 2016-10-04 20:39:20 -07:00
build.js refactor: add license header to JS files & format files (#12081) 2016-10-04 20:39:20 -07:00
index.html fix(angular1_router): rename `$route` service to `$rootRouter` 2016-02-24 21:15:34 +00:00
karma-router.conf.js refactor: add license header to JS files & format files (#12081) 2016-10-04 20:39:20 -07:00