js/src/tests/js1_7/geniter/gen-with-call-obj.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 var foo;
michael@0 2
michael@0 3 function gen() {
michael@0 4 var x = 0;
michael@0 5 foo = function() { return x++; }
michael@0 6 for (var i = 0; i < 10; ++i)
michael@0 7 yield x++;
michael@0 8 }
michael@0 9
michael@0 10 var j = 0;
michael@0 11 for (i in gen())
michael@0 12 assertEq(i, j++);
michael@0 13
michael@0 14 // now mess up the stack
michael@0 15
michael@0 16 function f1(x) {
michael@0 17 var a, b, c, d, e, f, g;
michael@0 18 return x <= 0 ? 0 : f1(x-1);
michael@0 19 }
michael@0 20 f1(10);
michael@0 21 function f2(x) {
michael@0 22 var a = x, b = x;
michael@0 23 return x <= 0 ? 0 : f2(x-1);
michael@0 24 }
michael@0 25 f2(10);
michael@0 26
michael@0 27 // now observe gen's call object (which should have been put)
michael@0 28
michael@0 29 gc();
michael@0 30 assertEq(foo(), 10);
michael@0 31 gc();
michael@0 32 assertEq(foo(), 11);
michael@0 33 gc();
michael@0 34 assertEq(foo(), 12);
michael@0 35
michael@0 36 reportCompare(true,true);

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