js/src/tests/js1_5/GC/regress-383269-02.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 // |reftest| skip -- unreliable - based on GC timing
michael@0 2 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 3 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 6
michael@0 7 //-----------------------------------------------------------------------------
michael@0 8 var BUGNUMBER = 383269;
michael@0 9 var summary = 'Leak related to arguments object';
michael@0 10 var actual = 'No Leak';
michael@0 11 var expect = 'No Leak';
michael@0 12
michael@0 13
michael@0 14 //-----------------------------------------------------------------------------
michael@0 15 test();
michael@0 16 //-----------------------------------------------------------------------------
michael@0 17
michael@0 18 function test()
michael@0 19 {
michael@0 20 enterFunc ('test');
michael@0 21 printBugNumber(BUGNUMBER);
michael@0 22 printStatus (summary);
michael@0 23
michael@0 24 function generate_big_object_graph()
michael@0 25 {
michael@0 26 var root = {};
michael@0 27 f(root, 17);
michael@0 28 return root;
michael@0 29 function f(parent, depth) {
michael@0 30 if (depth == 0)
michael@0 31 return;
michael@0 32 --depth;
michael@0 33 f(parent.a = {}, depth);
michael@0 34 f(parent.b = {}, depth);
michael@0 35 }
michael@0 36 }
michael@0 37
michael@0 38 function f(obj) {
michael@0 39 with (obj)
michael@0 40 return arguments;
michael@0 41 }
michael@0 42
michael@0 43 function timed_gc()
michael@0 44 {
michael@0 45 var t1 = Date.now();
michael@0 46 gc();
michael@0 47 return Date.now() - t1;
michael@0 48 }
michael@0 49
michael@0 50 var x = f({});
michael@0 51 x = null;
michael@0 52 gc();
michael@0 53 var base_time = timed_gc();
michael@0 54
michael@0 55 x = f(generate_big_object_graph());
michael@0 56 x = null;
michael@0 57 gc();
michael@0 58 var time = timed_gc();
michael@0 59
michael@0 60 if (time > (base_time + 10) * 3)
michael@0 61 actual = "generate_big_object_graph() leaked, base_gc_time="+base_time+", last_gc_time="+time;
michael@0 62
michael@0 63 reportCompare(expect, actual, summary);
michael@0 64
michael@0 65 exitFunc ('test');
michael@0 66 }

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