On 2018-09-04 12:02 PM, Allen Wirfs-Brock wrote:
At one point, early in the development of ES6 the draft spec. had a [[OriginalDescriptor]] field (that may not be the actual name I used) in internal PropertyDescrptors that carried along a reference to the original descriptor object from which the PropertyDescriptor was derived.
It looks like you're talking about [[Origin]]. Working drafts 12 though 25 had this wording or similar: A Property Descriptor may be derived from an object that has properties that directly correspond to the fields of a Property Descriptor. Such a derived Property Descriptor has an additional field named [[Origin]] whose value is the object from which the Property Descriptor was derived. (In case that helps anyone researching this.) -Michael _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
