Status: Accepted
Owner: ----
Labels: Type-Bug Priority-Medium ES5
New issue 1365 by [email protected]: Calling functions through
variables doesn't use undefined as receiver.
http://code.google.com/p/v8/issues/detail?id=1365
When you call a function through an environment variable, e.g.
var v = Object.prototype.valueOf
v(); // <-- this call
the ES5 specification says that the this-value of the call should be the
undefined value. We optimistically convert that to the global object, even
for strict mode functions and builtin functions.
The above call should throw an exception (attempt to use ToObject on
undefined) but instead returns the global object.
Ditto for
"use strict";
function foo() { return this; }
foo(); // returns global object
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