That is added relatively recent.
And thanks for pointing the documentation issue; add a issue to review all
before the final release.
On Thu, Sep 1, 2016 at 10:08 PM, Arnaud TOURNIER <ltea...@gmail.com> wrote:
> Thanks a lot for your answer.
>
> I tried the solution with defender methods earlier but it did not work, as
> far as i remember the compiler refused @JsOverlay defender methods on the
> JsFunction. The @JsFunction documentation says that : "A JsFunction
> interface cannot have defender methods."
> I will try again in this direction and let you know if i find a bug.
>
> Thanks
> Arnaud
>
> Le ven. 2 sept. 2016 à 05:28, 'Goktug Gokdogan' via GWT Contributors <
> google-web-toolkit-contributors@googlegroups.com> a écrit :
>
>> The limitation around @JsFunction is basically driven from the
>> limitations of being a function. I think there was an earlier discussion in
>> the contibutor list where we explained this in more detail.
>>
>> Being said that, you can handle some overloading in JsFunction interfaces
>> via defender methods marked with @JsOverlay that are delegating to a main
>> method. Something like:
>>
>>
>> @JsFunction
>> public interface Resolver<T> {
>>
>> void resolve(Object value);
>>
>> @JsOverlay
>> default void resolve() { resolve(null); }
>> @JsOverlay
>> default void resolve(T value) { resolve(value); }
>> @JsOverlay
>> default void resolve(Promise<T> value) { resolve(value); }
>> }
>>
>> Let's us know before it is too late if you hit any bugs around this :)
>>
>>
>> On Tue, Aug 30, 2016 at 7:13 AM, Arnaud TOURNIER <ltea...@gmail.com>
>> wrote:
>>
>>> Oh thanks! I'll try that.
>>> Once I think we need to merge our work on those topics...
>>> Thanks!
>>>
>>> Le mar. 30 août 2016 16:06, Paul Stockley <pstockl...@gmail.com> a
>>> écrit :
>>>
>>>> If you are passing Resolver<T> into some function. You could instead
>>>> create 3 Resolver interfaces and then overload the function so that it took
>>>> each of the resolver interfaces.
>>>>
>>>>
>>>> On Saturday, August 27, 2016 at 9:51:50 AM UTC-4, Arnaud TOURNIER wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> I am playing with js Promises and maybe there's a problem with
>>>>> JsInterop or i don't understand something.
>>>>>
>>>>> When wrapping the promises with JsInterop, i come to define the
>>>>> Resolver interface which represents the resolving callback that is given
>>>>> when constructing a promise. In Javascript it is a function and not an
>>>>> object, so the interface has the @JsFunction annotation.
>>>>>
>>>>> Here is the Resolver interface (inspired from the TypeScript
>>>>> definition of Promises...) :
>>>>>
>>>>> @JsFunction
>>>>> @FunctionalInterface
>>>>> public interface Resolver<T>
>>>>> {
>>>>> void resolve( T value );
>>>>> }
>>>>>
>>>>> Since the Javascript "resolve" function can be called without
>>>>> parameters and also with a Promise instead of a value, i would like to
>>>>> make
>>>>> those versions available in the interface.
>>>>>
>>>>> But the @JsFunction annotation prevents from having this :
>>>>>
>>>>> @JsFunction
>>>>> public interface Resolver<T>
>>>>> {
>>>>> void resolve();
>>>>>
>>>>> void resolve( T value );
>>>>>
>>>>> void resolve( Promise<T> value );
>>>>> }
>>>>>
>>>>> That's because it allows only one method in the annotated interface.
>>>>>
>>>>> That is what i don't understand : AFAIK, the gwt compiler has to call
>>>>> the same function in the same way for the three declared methods (because
>>>>> of the semantic of the @JsFunction annotation), just changing the calling
>>>>> parameters. So i don't understand why is there the limitation of having
>>>>> only one method allowed in @JsFunction interfaces... If it would it would
>>>>> give even much power to JsInterop !
>>>>>
>>>>> Could you please bring light to my misunderstanding ?
>>>>>
>>>>> Thanks !
>>>>>
>>>>> Arnaud
>>>>>
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