On 11/17/16, 2:42 PM, "Harbs" <harbs.li...@gmail.com> wrote:
> >On Nov 17, 2016, at 11:46 PM, Alex Harui <aha...@adobe.com> wrote: > >> >> >> On 11/17/16, 11:21 AM, "Harbs" <harbs.li...@gmail.com> wrote: >> >>>> It looks like Promise does implement Ithenable. >>> Yes. I know. >>> >>> I did not word that very well. I’m not sure what I meant. I was >>>probably >>> talking about the AS3 implementation. I’m currently thinking that >>>Promise >>> should implement IPromise which inherits from IThenable and ICatchable. >>> Is there a way of declaring static functions in interfaces (i.e. >>> IPromise.resolve(), IPromise.reject(), IPromise.all())? >> >> Static functions? Why wouldn't they be instance methods. Interfaces in >> AS3 can only handle public instance functions. > >Promise has 4 static methods which return Promise objects: all(), race(), >reject() and resolve().[1] The most important of these is probably >reject() which is the only way I know of to force a catch in the middle >of a promise chain. all() is also very useful. > >The method of these which is problematic when using the externs is >resolve() because it returns an Object instead of a Promise.\ MDN says resolve() returns a Promise. So you could just modify the extern to do so. I'm not familiar with Promises. Maybe they aren't type-safe? It sounds like some APIs that return a Promise may actually return a value in some cases and maybe that's why the extern uses Object? -Alex
