js/src/jit-test/tests/arguments/defaults-scoping.js@ac0c01689b40
js/src/jit-test/tests/arguments/defaults-scoping.js
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 var x = 'global';
2 function f(a=x) { // local variable x
3 var x = 'local';
4 return a;
5 }
6 assertEq(f(), undefined);
8 function g(f=function () { return ++x; }) { // closes on local variable x
9 var x = 0;
10 return f;
11 }
12 var gf = g();
13 assertEq(gf(), 1);
14 assertEq(gf(), 2);
15 gf = g();
16 assertEq(gf(), 1);
18 function h(f=function (s) { return eval(s); }) { // closes on local scope
19 var x = 'hlocal';
20 return f;
21 }
22 var hf = h();
23 assertEq(hf('x'), 'hlocal');
24 assertEq(hf('f'), hf);
25 assertEq(hf('var x = 3; x'), 3);
27 function j(expr, v=eval(expr)) {
28 return v;
29 }
30 assertEq(j("expr"), "expr");
31 assertEq(j("v"), undefined);
32 assertEq(j("Array"), Array);
33 assertEq(j("arguments").length, 1);
