https://people.mozilla.org/~jorendorff/es6-draft.html#sec-createfromconstructor
<https://people.mozilla.org/~jorendorff/es6-draft.html#sec-createfromconstructor>
Isn’t the name of that operation misleading? How about the following changes?
* Rename `CreateFromConstructor` to `CreateViaCreateAction`.
* Throw an exception in step 3.
CreateFromConstructor is only used in two locations:
* 7.3.18 Construct (F, argumentsList)
* Change step 2 so that `CreateViaCreateAction` is called if `F` has a
property `[[CreateAction]]` and `OrdinaryCreateFromConstructor` otherwise.
* 25.4.1.6 NewPromiseCapability ( C )
* `CreateFromConstructor` being used here effectively means that you must
subclass `Promise` (the note sounds like that is desired).
`CreatePromiseCapabilityRecord` re-implements the constructor protocol. I’d
prefer it if that duplication of functionality didn’t happen and (e.g.)
`Construct()` could be used, but that may be too complicated a change.
--
Dr. Axel Rauschmayer
a...@rauschma.de
rauschma.de
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