const {resolve} = Promise; // fails

[Andrea Giammarchi]

sorry, that'd be `public get resolve()` and also `public #resolve()` so
nobody should be confused about the fact I'm talking about public static
methods.

On Thu, Jul 19, 2018 at 4:32 PM Andrea Giammarchi <
andrea.giammarchi at gmail.com> wrote:

> I know it's about subclassing, which is why I've asked why, once there's
> no context, the default/base one is not considered, but since everyone came
> back with the subclassing issue, which is actually what I've said myself on
> twitter about the current state, how about changing all public static
> methods that need it, to be getters ?
>
> ```js
> class Promise {
>   #resolve(...args) {
>     return this.nativeImplementation(...args);
>   }
>   get resolve() {
>     return #resolve.bind(this);
>   }
> }
> ```
>
> we could argue `Promise.resolve === Promise.resolve` should be preserved,
> as behavior, so that we need a lazy defined getter ... **but** why not
> making public static restructuring from known constructors work regardless,
> under all circumstances ?
>
>
> On Thu, Jul 19, 2018 at 4:11 PM T.J. Crowder <
> tj.crowder at farsightsoftware.com> wrote:
>
>> On Thu, Jul 19, 2018 at 12:56 PM, Andrea Giammarchi
>> <andrea.giammarchi at gmail.com> wrote:
>> > Why cannot Promise methods fallback to Promise constructor when the
>> > class/context is not available?
>>
>> That sounds reasonable on first glance, but I'd be concerned about what
>> happens when you do it after subclassing:
>>
>> ```js
>> class MyPromise extends Promise {
>>     // ...and adds some important feature...
>> }
>> // ...
>> const {resolve, reject} = MyPromise;
>> const p = resolve();
>> p.someImportantFeature(/*...*/); // TypeError: undefined is not a function
>> ```
>>
>> ...since `resolve` fell back to `Promise`. That feels like a footgun.
>> Either subclassers would have to handle that, which they will forget to do,
>> or it has to be a bit more complicated than just a simple fallback to `
>> Promise` (I don't immediately know what that "more complicated" answer
>> would be.)
>>
>> -- T.J. Crowder
>>
>>
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