Closed Bug 1314083 Opened 8 years ago Closed 8 years ago

CoverInitName not supported in async arrow function parameters

Categories

(Core :: JavaScript Engine, defect)

defect
Not set
normal

Tracking

()

RESOLVED FIXED
mozilla52
Tracking Status
firefox52 --- fixed

People

(Reporter: anba, Assigned: anba)

Details

Attachments

(1 file, 1 obsolete file)

Test case: --- async({a = 0}) => {} --- Expected: No syntax error Actual: Throws syntax error "missing : after property id"
Assignee: nobody → andrebargull
Attached patch Bug1314083.patch (obsolete) — Splinter Review
The detection of unparenthesized "async" in Parser::memberExpr() isn't necessary to fix this bug, I've only added it to give better error messages in some cases.
Attachment #8806375 - Flags: review?(arai.unmht)
Comment on attachment 8806375 [details] [diff] [review] Bug1314083.patch Review of attachment 8806375 [details] [diff] [review]: ----------------------------------------------------------------- Thank you :D ::: js/src/tests/ecma_2017/AsyncFunctions/cover-init-name-syntax.js @@ +44,5 @@ > + typeof async({a = 1}, {b = 2}, {c = 3} = {}); > +`), SyntaxError); > +assertThrowsInstanceOf(() => eval(` > + typeof async({a = 1}, {b = 2} = {}, {c = 3} = {}); > +`), SyntaxError); would be nice to add |a.async({a = 1});| case too.
Attachment #8806375 - Flags: review?(arai.unmht) → review+
Updated patch to include additional test per review comment. Carrying r+ from arai.
Attachment #8806375 - Attachment is obsolete: true
Attachment #8807090 - Flags: review+
Keywords: checkin-needed
Pushed by cbook@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/8a36d67577d8 Handle destructuring-only syntax when initially parsing async arrow parameters. r=arai
Keywords: checkin-needed
Status: NEW → RESOLVED
Closed: 8 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla52
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