d169c2434e
- 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 |
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.. | ||
_common | ||
common | ||
compiler/ts/url_resolver | ||
core | ||
facade/ts/async | ||
forms/ts | ||
http/ts | ||
platform-browser/dom/debug/ts | ||
testing/ts | ||
upgrade/static/ts | ||
web_workers/ts | ||
README.md | ||
build.sh | ||
test.sh | ||
tsconfig-build.json |
README.md
API Examples
This folder contains small example apps that get in-lined into our API docs. Each example contains tests for application behavior (as opposed to testing Angular's behavior) just like an Angular application developer would write.
Running the examples
# # execute the following command only when framework code changes
./build.sh
# run when test change
./modules/@angular/examples/build.sh
# start server
$(npm bin)/gulp serve-examples
navigate to http://localhost:8001
Running the tests
# run only when framework code changes
./build.sh
# run to compile tests and run them
./modules/@angular/examples/test.sh
NOTE: sometimes the http server does not exit properly and it retains the 8001
port.
in such a case you can use lsof -i:8001
to see which process it is and then use kill
to remove it. (Or in single command: lsof -i:8001 -t | xargs kill
)