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 28 var a = []; 29 var new_space_string = ""; 30 for (var i = 0; i < 128; i++) { 31 new_space_string += String.fromCharCode((Math.random() * 26 + 65) | 0); 32 } 33 for (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. 38 json1 = JSON.stringify(a); 39 json2 = JSON.stringify(a); 40 assertTrue(json1 == json2, "GC caused JSON.stringify to fail."); 41 42 // Check that the slow path of JSON.stringify works correctly wrt GC. 43 for (var i = 0; i < 100000; i++) { 44 var s = i.toString(); 45 assertEquals('"' + s + '"', JSON.stringify(s, null, 0)); 46 } 47 48 for (var i = 0; i < 100000; i++) { 49 var s = i.toString() + "\u2603"; 50 assertEquals('"' + s + '"', JSON.stringify(s, null, 0)); 51 } 52
