1// Copyright 2012 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28var a = []; 29var new_space_string = "a"; 30for (var i = 0; i < 8; i++) { 31 new_space_string += new_space_string; 32} 33for (var i = 0; i < 10000; i++) a.push(new_space_string); 34 35// At some point during the first stringify, allocation causes a GC and 36// new_space_string is moved to old space. Make sure that this does not 37// screw up reading from the correct location. 38json1 = JSON.stringify(a); 39json2 = JSON.stringify(a); 40assertTrue(json1 == json2, "GC caused JSON.stringify to fail."); 41 42// Check that the slow path of JSON.stringify works correctly wrt GC. 43for (var i = 0; i < 10000; i++) { 44 var s = i.toString(); 45 assertEquals('"' + s + '"', JSON.stringify(s, null, 0)); 46} 47 48for (var i = 0; i < 10000; i++) { 49 var s = i.toString() + "\u2603"; 50 assertEquals('"' + s + '"', JSON.stringify(s, null, 0)); 51} 52