Wed, 31 Dec 2014 06:09:35 +0100
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
michael@0 | 2 | /* |
michael@0 | 3 | * Any copyright is dedicated to the Public Domain. |
michael@0 | 4 | * http://creativecommons.org/licenses/publicdomain/ |
michael@0 | 5 | */ |
michael@0 | 6 | |
michael@0 | 7 | function f(s) { |
michael@0 | 8 | eval(s); |
michael@0 | 9 | return function(a) { |
michael@0 | 10 | var d; |
michael@0 | 11 | let (c = 3) { |
michael@0 | 12 | d = function() { a; }; // force Block object to be cloned |
michael@0 | 13 | with({}) {}; // repel JägerMonkey |
michael@0 | 14 | return b; // lookup occurs in scope of Block |
michael@0 | 15 | } |
michael@0 | 16 | }; |
michael@0 | 17 | } |
michael@0 | 18 | |
michael@0 | 19 | var b = 1; |
michael@0 | 20 | var g1 = f(""); |
michael@0 | 21 | var g2 = f("var b = 2;"); |
michael@0 | 22 | |
michael@0 | 23 | /* Call the lambda once, caching a reference to the global b. */ |
michael@0 | 24 | g1(0); |
michael@0 | 25 | |
michael@0 | 26 | /* |
michael@0 | 27 | * If this call sees the above cache entry, then it will erroneously use the |
michael@0 | 28 | * global b. |
michael@0 | 29 | */ |
michael@0 | 30 | assertEq(g2(0), 2); |
michael@0 | 31 | |
michael@0 | 32 | reportCompare(true, true); |