[Webkit-unassigned] [Bug 151812] New: Numeric properties of an object will not use accessors defined on the object's prototype

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=151812

            Bug ID: 151812
           Summary: Numeric properties of an object will not use accessors
                    defined on the object's prototype
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dfreedm at google.com

Reproduction:

var proto = Object.create(null);
Object.defineProperty(proto, '0', {
  get: function(){console.log('get')},
  set: function(){console.log('set')}
});
var o = Object.create(proto);
o[0] = 3;
o[0] === undefined

Expected:
Console prints 'set', 'get', and 'true', as o[0] === undefined.

Actual:
Console prints 'false', as o[0] === 3


Chrome, Firefox, and IE/Edge will show the expected behavior.

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