blob: d6d491f4331b81f2f82a34217a6411d0ed7a7fe2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
// Overview:
// - The outer function is an IIFE which gets marked as a singleton.
// - The |fn| inner function is then also marked as a singleton.
// - The |self| inner function uses |Function.prototype.caller| to reinvoke the outer function.
//
// When we reinvoke outer, we end up cloning a previously reused, i.e. non-cloned,
// function.
(function(index) {
var fn = function() {};
// Accessing |.name| sets the resolved-name flag, which should not be
// copied over to the function clone.
assertEq(fn.name, "fn");
// Reinvoke the IIFE through |Function.prototype.caller|.
if (index === 0) {
(function self() {
self.caller(1);
})();
}
})(0);
|
