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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 var a = []; | 28 var a = []; |
29 var new_space_string = ""; | 29 var new_space_string = "a"; |
30 for (var i = 0; i < 128; i++) { | 30 for (var i = 0; i < 8; i++) { |
31 new_space_string += String.fromCharCode((Math.random() * 26 + 65) | 0); | 31 new_space_string += new_space_string; |
32 } | 32 } |
33 for (var i = 0; i < 10000; i++) a.push(new_space_string); | 33 for (var i = 0; i < 10000; i++) a.push(new_space_string); |
34 | 34 |
35 // At some point during the first stringify, allocation causes a GC and | 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 | 36 // new_space_string is moved to old space. Make sure that this does not |
37 // screw up reading from the correct location. | 37 // screw up reading from the correct location. |
38 json1 = JSON.stringify(a); | 38 json1 = JSON.stringify(a); |
39 json2 = JSON.stringify(a); | 39 json2 = JSON.stringify(a); |
40 assertTrue(json1 == json2, "GC caused JSON.stringify to fail."); | 40 assertTrue(json1 == json2, "GC caused JSON.stringify to fail."); |
41 | 41 |
42 // Check that the slow path of JSON.stringify works correctly wrt GC. | 42 // Check that the slow path of JSON.stringify works correctly wrt GC. |
43 for (var i = 0; i < 100000; i++) { | 43 for (var i = 0; i < 10000; i++) { |
44 var s = i.toString(); | 44 var s = i.toString(); |
45 assertEquals('"' + s + '"', JSON.stringify(s, null, 0)); | 45 assertEquals('"' + s + '"', JSON.stringify(s, null, 0)); |
46 } | 46 } |
47 | 47 |
48 for (var i = 0; i < 100000; i++) { | 48 for (var i = 0; i < 10000; i++) { |
49 var s = i.toString() + "\u2603"; | 49 var s = i.toString() + "\u2603"; |
50 assertEquals('"' + s + '"', JSON.stringify(s, null, 0)); | 50 assertEquals('"' + s + '"', JSON.stringify(s, null, 0)); |
51 } | 51 } |
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