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Coverage: property names which are keywords containing escape sequences are allowed #2286

bakkot opened this issue Aug 12, 2019 · 1 comment


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commented Aug 12, 2019

From IRC:

({ def\u0061ult: 0 });


({ def\u{61}ult: 0 });

are both legal, since def\u0061ult and def\u{61}ult are both IdentifierNames and therefore LiteralPropertyNames. The restriction on keywords not containing escape sequences - which prevents export def\u0061ult function (){} from being legal - is not relevant in this context.

This case appears not to be covered by current tests - at least, I couldn't find one at a quick glance.

Currently, out of Chakra, JavascriptCore, SpiderMonkey, V8, and XS, only Chakra and SpiderMonkey allow the first form, and only SpiderMonkey allows the second.


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commented Aug 12, 2019

Closing as a duplicate of #2285.

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