Closed Bug 1054758 Opened 6 years ago Closed 6 years ago
Implement ES6 Symbol
.is Concat Spreadable
This entails changing js::array_concat in jsarray.cpp to use the (to-be-introduced) IsConcatSpreadable abstract operation instead of ObjectClassIs in the items loop.
Possibly bug 688852 should land before this changes. Or, possibly we should just drop that patch/bug entirely and fix that bug here with a self-hosted version. :-\
Status: NEW → RESOLVED
Closed: 6 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1041586
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