TypeChecker.exactMatchAnnotationsOf

[matanlurey]

/cc @kevmoo for thoughts.

Basically, something like:

$Foo.annotationsOf(someElement, andAssignable: true);

Or we could make this the default behavior, and add onlyExact: true. WDUT?

[natebosch]

What's the use case for onlyExact? Seems to me we'd always be interested in assignable?

[matanlurey]

Angular specifically, at least right now, doesn't want to match sub-classes of @Component.

[natebosch]

Ah ok sounds good.

I think it'd be nicer to have two separate methods rather than a method with a boolean argument.

I'm fine with either annotationsOf and exactMatchAnnotationsOf or annotationsOf and assignableAnnotationsOf depending on which we think is more common.

[matanlurey]

That works for me! It's a FR.