1310394 - for-in loops with a name declaration with an initializer should be forbidden in strict mode code

Status: RESOLVED FIXED

(Core :: JavaScript Engine, defect)

Description

[Jeff Walden [:Waldo]]

https://kangax.github.io/compat-table/es6/ yells at us for this.  https://tc39.github.io/ecma262/#sec-initializers-in-forin-statement-heads sez this only applies when parsing non-strict code.  Oops.

Comment 1

[Jeff Walden [:Waldo]]

Attachment: Patch

Comment 2

[André Bargull [:anba]]

Comment on attachment 8801446 [details] [diff] [review]
Patch

Review of attachment 8801446 [details] [diff] [review]:
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Thanks!

r=me

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/90651995f07f
for-in loops with a name declaration with an initializer, in strict mode code, should be a syntax error.  r=anba

Comment 4

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/90651995f07f