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Parses invalid yield in for-in statement #1894

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ghost opened this Issue Dec 5, 2017 · 0 comments

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ghost commented Dec 5, 2017

When a yield (@mikesherov ) appears within the Initializer of an AssignmentElement outside of a generator function body, it behaves as an IdentifierReference. (For..in statement)

Steps to reproduce

esprima.parse('for ([ x = yield ] in [[]]) ;')

Expected output

Should throw

Actual output

Parses invalid AST

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