Bug 64875

Summary:

Use of `yield` keyword is broken

Product:

WebKit

Reporter:

lekensteyn

Component:

JavaScriptCore

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Major

CC:

barraclough

Priority:

Version:

528+ (Nightly build)

Hardware:

OS:

Linux

Attachments:

Description	Flags
Testcases which should all be OK, not FAIL	none
The patch	sam: review+

Description lekensteyn 2011-07-20 08:46:53 PDT

Created attachment 101475 [details]
Testcases which should all be OK, not FAIL

The use of `yield` as variable name is impossible, even when not in strict mode. This was confirmed in build 91186 (r91186.tar.bz2">http://builds.nightly.webkit.org/files/trunk/src/WebKit-r91186.tar.bz2)

Although the keyword cannot be used, it does neither work. The example from https://developer.mozilla.org/en/New_in_JavaScript_1.7#Generators gives a parse error:

    SyntaxError: Expected an identifier but found 'i' instead

The attached testcase provides some example code that demonstrates that yield cannot be used in some cases.

Comment 1 Gavin Barraclough 2011-07-20 11:04:45 PDT

Thanks for the bug report - yep, that's a nasty bug, will get on it asap.

Comment 2 Gavin Barraclough 2011-07-21 18:16:41 PDT

Created attachment 101682 [details]
The patch

Comment 3 Gavin Barraclough 2011-07-21 22:30:21 PDT

Fixed in r91553