Can't bind annotated Injector

[gissuebot]

From zorzella on September 30, 2009 12:29:24

In GuiceBerry, it's common for tests to want to access the server's injector. For
that, I want to be able to do something like:

bind(Injector.class).annotatedWith(ServerSide.class).toInstance(serverInjector);

Unfortunately, Guice currently arbitrarily forbids binding an Injector, even if
annotated.

Original issue: http://code.google.com/p/google-guice/issues/detail?id=433

[gissuebot]

From crazyboblee on September 30, 2009 09:42:50

This was a precaution that I think is fine to take out.

[malcolmr]

I think I just ran across this, where attempting to write something like:

@Provides @Internal Injector provideInjector(...) {...}

@Provides ... provideThingFromInternalInjector(@Internal Injector injector) {...}

silently fails to bind the annotated Injector, resulting in "No implementation for com.google.inject.Injector annotated with @...Internal() was bound."

[mcculls]

@malcolmr Injector is one of the types Guice won't let you bind against, even qualified with an annotation:

https://github.com/google/guice/blob/master/core/src/com/google/inject/internal/AbstractBindingProcessor.java#L43

if you wrote an explicit binding via the fluent Binder API then I'd expect to see a binding error along the lines of Binding to core guice framework type is not allowed, so it sounds like a bug that you don't see that using @Provides

What version of Guice are you using?

[malcolmr]

I'm using Google's upstream, so c. 4.2.3-SNAPSHOT.

Yeah, I think it's a bug that @Provides @Foo Injector is silently ignored (assuming we're not going to resolve this issue to allow annotated injectors to be bound).