[Webkit-unassigned] [Bug 105282] New: Date.prototype.toJSON does not execute steps 1-2

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=105282

           Summary: Date.prototype.toJSON does not execute steps 1-2
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: andre.bargull at gmail.com


test case:
---
> this.toISOString = function(){print("global toISOString")}
function () {print("global toISOString");}

> Date.prototype.toJSON.call(null)
global toISOString

> Date.prototype.toJSON.call(void 0)
global toISOString

> Date.prototype.toJSON.call({ valueOf: function(){print("ToPrimitive(valueOf) called"); return 0}, toISOString: function(){print("toISOString called")} })
toISOString called
---

[ES5.1 - 15.9.5.44 Date.prototype.toJSON] steps 1-2 aren't executed properly:
- the first two calls should raise a TypeError because ToObject() is called with an incompatible argument (step 1 of 15.9.5.44)
- the last call should invoke the supplied valueOf() function (step 2 of 15.9.5.44)

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