[Webkit-unassigned] [Bug 185197] New: Iterator of Array.keys() returns object in wrong order

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=185197

            Bug ID: 185197
           Summary: Iterator of Array.keys() returns object in wrong order
           Product: WebKit
           Version: Safari 11
          Hardware: Unspecified
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: afa3 at cin.ufpe.br

Hi everyone,

according to ES6 specification (https://www.ecma-international.org/ecma-262/8.0/index.html#sec-createiterresultobject), the Iterator
of a TypedArray.keys() or an Array.keys() should return an object on this order {value: Integer, done: Boolean}.

Step to reproduce:
    var arr = new Int8Array([1,2,3]);
    var iterator = arr.keys();
    var a = iterator.next();
    var toString = JSON.stringify(a); // just to check if it is the same string
    if (!(toString === JSON.stringify({value: 0, done: false})))
        throw new Error('expected {"value": 0, "done": false}, got ' + toString)

Actual results:
Error: expected {"value": 0, "done": false}, got {"done": false, "value": 0}

Expected results:
Pass without failures

Other JavaScript engines such as V8, SpiderMonkey and Chakra works as expected.

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