[Webkit-unassigned] [Bug 77340] New: Unexpected syntax error

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=77340

           Summary: Unexpected syntax error
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
        OS/Version: Mac OS X 10.7
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: sander at react.nl


A single line of JS triggers a syntax error which I wouldn't expect since the code within the function is correct and should not be executed at all.

> function a() { new x('x'+y).c = ''; }

Results in a syntax error:

> SyntaxError: Unexpected token '='

Upon removing variable y within this function, the syntax error magically disappears:

> function a() { new x('x').c = ''; }

Also reproducible in stable versions of Safari. Executing this code in Firefox / Chrome works just fine.

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