[Webkit-unassigned] [Bug 138857] Updating a non-writable property of a coerced primitive object does not throw a TypeError exception in a strict mode

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=138857

Daejun Park <daejunpark at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Daejun Park <daejunpark at gmail.com> ---
I'm sorry for the noise. It turns out that I've missed how Web Inspector works. The above example works correctly when I wrapped the code with a function, ensuring the strict mode, as follows:

function f() {
  "use strict";
  Object.defineProperty(Number.prototype, "x", { "value" : 0, "writable" : false, "enumerable" : true, "configurable" : true });
  1["x"] = 10; // TypeError
}
f();

I close this issue.

Thanks,
Daejun

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