[Webkit-unassigned] [Bug 91270] New: a = data[a]++; sets the wrong key in data

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=91270

           Summary: a = data[a]++; sets the wrong key in data
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: malteubl at google.com


Hey,

this code has different behavior in JSC from all other engines.

var data = {'test': 0};
var a = 'test';
a = data[a]++;

Data now contains {"test":0,"0":1} instead of  {"test":1}

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.