During the integration of injection-js into the refactoring of a personal side project, I noticed, that consumers are currently not able to use the (previously introduced) inject() function with abstract types.

A quick look at the source and a comparison with the current implementations of Angular, revealed that the function signature is currently not supporting abstract types.

Angulars provider token type is going to add proper support for this. To be more specific, the AbstractType<T> typing below will do so.

export interface AbstractType<T> extends Function {
  prototype: T;
}

I'll be happy to provide a fix PR for it in a little while. Nevertheless, I created this issue for the sake of it.

Best regards ✌