Status: New
Owner: ----
New issue 3702 by [email protected]: Updating a non-writiable property
of a coerced primitive object does not throw a TypeError exception in a
strict mode
https://code.google.com/p/v8/issues/detail?id=3702
In a strict mode, it should throw a TypeError exception, when attempting to
update a non-writiable property of a coerced primitive object, but v8 does
not.
According to ES5, Section 8.7.2 PutValue (V, W), [[Put]] internal method,
Step 2.a,
http://es5.github.io/#x8.7.2
the following code is supposed to throw a TypeError exception, but v8 does
not, while SpiderMonkey correctly throws the exception:
"use strict";
Object.defineProperty(Number.prototype, "x", { "value" : 0, "writable" :
false, "enumerable" : true, "configurable" : true });
1["x"] = 10; // TypeError
I've tested this using the JavaScript console of Chrome 38.0.2125.122.
Thanks,
Daejun
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