Status: New
Owner: ----
New issue 3704 by [email protected]: Updating an immutable binding does
not throw a TypeError exception in a strict mode
https://code.google.com/p/v8/issues/detail?id=3704
In a strict mode, it should throw a TypeError exception, when attempting to
update an immutable binding, but v8 does not.
According to ES5, Section 10.2.1.1.3 SetMutableBinding (N,V,S), Step 4,
http://es5.github.io/#x10.2.1.1.3
the following code is supposed to throw a TypeError exception, since "g" is
an immutable binding inside the function body (according to ES5, Section 13
Function Definition, Step 3 of the third block).
"use strict";
var f = function g() {
g = 0;
};
f(); // TypeError
However, v8 does not report any exception, while SpiderMonkey correctly
throws a TypeError exception.
I've tested this using the JavaScript console of Chrome 38.0.2125.122.
Thanks,
Daejun
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