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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 // Flags: --allow-natives-syntax | 28 // Flags: --allow-natives-syntax |
29 | 29 |
| 30 // Test JSON.stringify on the global object. |
| 31 var a = 12345; |
| 32 assertTrue(JSON.stringify(this).indexOf('"a":12345') > 0); |
| 33 |
| 34 // Test JSON.stringify of array in dictionary mode. |
| 35 var array_1 = []; |
| 36 var array_2 = []; |
| 37 array_1[100000] = 1; |
| 38 array_2[100000] = function() { return 1; }; |
| 39 var nulls = ""; |
| 40 for (var i = 0; i < 100000; i++) { |
| 41 nulls += 'null,'; |
| 42 } |
| 43 expected_1 = '[' + nulls + '1]'; |
| 44 expected_2 = '[' + nulls + 'null]'; |
| 45 assertEquals(expected_1, JSON.stringify(array_1)); |
| 46 assertEquals(expected_2, JSON.stringify(array_2)); |
| 47 |
| 48 // Test JSValue with custom prototype. |
| 49 var num_wrapper = Object(42); |
| 50 num_wrapper.__proto__ = { __proto__: null, |
| 51 toString: function() { return true; } }; |
| 52 assertEquals('1', JSON.stringify(num_wrapper)); |
| 53 |
| 54 var str_wrapper = Object('2'); |
| 55 str_wrapper.__proto__ = { __proto__: null, |
| 56 toString: function() { return true; } }; |
| 57 assertEquals('"true"', JSON.stringify(str_wrapper)); |
| 58 |
| 59 var bool_wrapper = Object(false); |
| 60 bool_wrapper.__proto__ = { __proto__: null, |
| 61 toString: function() { return true; } }; |
| 62 // Note that toString function is not evaluated here! |
| 63 assertEquals('false', JSON.stringify(bool_wrapper)); |
| 64 |
| 65 // Test getters. |
| 66 var counter = 0; |
| 67 var getter_obj = { get getter() { |
| 68 counter++; |
| 69 return 123; |
| 70 } }; |
| 71 assertEquals('{"getter":123}', JSON.stringify(getter_obj)); |
| 72 assertEquals(1, counter); |
| 73 |
| 74 // Test toJSON function. |
| 75 var tojson_obj = { toJSON: function() { |
| 76 counter++; |
| 77 return [1, 2]; |
| 78 }, |
| 79 a: 1}; |
| 80 assertEquals('[1,2]', JSON.stringify(tojson_obj)); |
| 81 assertEquals(2, counter); |
| 82 |
| 83 // Test that we don't recursively look for the toJSON function. |
| 84 var tojson_proto_obj = { a: 'fail' }; |
| 85 tojson_proto_obj.__proto__ = { toJSON: function() { |
| 86 counter++; |
| 87 return tojson_obj; |
| 88 } }; |
| 89 assertEquals('{"a":1}', JSON.stringify(tojson_proto_obj)); |
| 90 |
| 91 // Test toJSON produced by a getter. |
| 92 var tojson_via_getter = { get toJSON() { |
| 93 return function(x) { |
| 94 counter++; |
| 95 return 321; |
| 96 }; |
| 97 }, |
| 98 a: 1 }; |
| 99 assertEquals('321', JSON.stringify(tojson_via_getter)); |
| 100 |
| 101 // Test toJSON with key. |
| 102 tojson_obj = { toJSON: function(key) { return key + key; } }; |
| 103 var tojson_with_key_1 = { a: tojson_obj, b: tojson_obj }; |
| 104 assertEquals('{"a":"aa","b":"bb"}', JSON.stringify(tojson_with_key_1)); |
| 105 var tojson_with_key_2 = [ tojson_obj, tojson_obj ]; |
| 106 assertEquals('["00","11"]', JSON.stringify(tojson_with_key_2)); |
| 107 |
| 108 // Test toJSON with exception. |
| 109 var tojson_ex = { toJSON: function(key) { throw "123" } }; |
| 110 assertThrows(function() { JSON.stringify(tojson_ex); }); |
| 111 |
| 112 // Test holes in arrays. |
30 var fast_smi = [1, 2, 3, 4]; | 113 var fast_smi = [1, 2, 3, 4]; |
31 fast_smi.__proto__ = [7, 7, 7, 7]; | 114 fast_smi.__proto__ = [7, 7, 7, 7]; |
32 delete fast_smi[2]; | 115 delete fast_smi[2]; |
33 assertTrue(%HasFastSmiElements(fast_smi)); | 116 assertTrue(%HasFastSmiElements(fast_smi)); |
34 assertEquals("[1,2,7,4]", JSON.stringify(fast_smi)); | 117 assertEquals("[1,2,7,4]", JSON.stringify(fast_smi)); |
35 | 118 |
36 var fast_double = [1.1, 2, 3, 4]; | 119 var fast_double = [1.1, 2, 3, 4]; |
37 fast_double.__proto__ = [7, 7, 7, 7]; | 120 fast_double.__proto__ = [7, 7, 7, 7]; |
38 | 121 |
39 delete fast_double[2]; | 122 delete fast_double[2]; |
40 assertTrue(%HasFastDoubleElements(fast_double)); | 123 assertTrue(%HasFastDoubleElements(fast_double)); |
41 assertEquals("[1.1,2,7,4]", JSON.stringify(fast_double)); | 124 assertEquals("[1.1,2,7,4]", JSON.stringify(fast_double)); |
42 | 125 |
43 var fast_obj = [1, 2, {}, {}]; | 126 var fast_obj = [1, 2, {}, {}]; |
44 fast_obj.__proto__ = [7, 7, 7, 7]; | 127 fast_obj.__proto__ = [7, 7, 7, 7]; |
45 | 128 |
46 delete fast_obj[2]; | 129 delete fast_obj[2]; |
47 assertTrue(%HasFastObjectElements(fast_obj)); | 130 assertTrue(%HasFastObjectElements(fast_obj)); |
48 assertEquals("[1,2,7,{}]", JSON.stringify(fast_obj)); | 131 assertEquals("[1,2,7,{}]", JSON.stringify(fast_obj)); |
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