The previous code that had `try/catch` statements in methods could not be optimized by Chrome.
This change separates `AppView` (no `try/catch`) form `DebugAppView` (always `try/catch`). Our codegen will use `AppView` in production mode and `DebugAppView` in debug mode.
Closes#8338
BREAKING CHANGE:
- `DynamicComponentLoader` is deprecated. Use `ComponentResolver` and `ViewContainerRef` directly.
- `DebugNode.inject` is deprecated. use `DebugNode.injector.get` instead.
BREAKING CHANGE:
- Before, a `EmbeddedViewRef` used to have methods for
setting variables. Now, a user has to pass in a context
object that represents all variables when an `EmbeddedViewRef`
should be created.
- `ViewContainerRef.createEmbeddedViewRef` now takes
a context object as 2nd argument.
- `EmbeddedViewRef.setLocal` and `getLocal` have been removed.
Use `EmbeddedViewRef.context` to access the context.
- `DebugNode.locals` has been removed. Use the new methods `DebugElement.references`
to get the references that are present on this element,
or `DebugElement.context` to get the context of the `EmbeddedViewRef` or the component to which the element belongs.
Closes#8321
These worked in Dart because they were effectively exported even without the export keyword.
Without exporting these symbols, they are not produced in .metadata.json files, which leaves
dangling references from the Decorators that use them.
Instantiating the test component within an NgZone will let us track async tasks in event handlers and change detection.
We can also do auto change detection when triggering events through dispatchEvent and not have to do fixture.detectChange() manually in the test.
New API:
ComponentFixture.autoDetectChanges() - This puts the fixture in auto detect mode that automatically calls detectChanges when the microtask queue is empty (Similar to how change detection is triggered in an actual application).
ComponentFixture.isStable() - This returns a boolean whether the fixture is currently stable or has some async tasks that need to be completed.
ComponentFixture.whenStable() - This returns a promise that is resolved when the fixture is stable after all async tasks are complete.
Closes#8301
Tobias Bosch
Martin Probst
Misko Hevery
Alex Eagle
vsavkin
Vikram Subramanian