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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 |
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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. | 30 // Test JSON.stringify on the global object. |
31 var a = 12345; | 31 var a = 12345; |
32 assertTrue(JSON.stringify(this).indexOf('"a":12345') > 0); | 32 assertTrue(JSON.stringify(this).indexOf('"a":12345') > 0); |
| 33 assertTrue(JSON.stringify(this, null, 0).indexOf('"a":12345') > 0); |
33 | 34 |
34 // Test JSON.stringify of array in dictionary mode. | 35 // Test JSON.stringify of array in dictionary mode. |
| 36 function TestStringify(expected, input) { |
| 37 assertEquals(expected, JSON.stringify(input)); |
| 38 assertEquals(expected, JSON.stringify(input, null, 0)); |
| 39 } |
| 40 |
35 var array_1 = []; | 41 var array_1 = []; |
36 var array_2 = []; | 42 var array_2 = []; |
37 array_1[100000] = 1; | 43 array_1[100000] = 1; |
38 array_2[100000] = function() { return 1; }; | 44 array_2[100000] = function() { return 1; }; |
39 var nulls = ""; | 45 var nulls = ""; |
40 for (var i = 0; i < 100000; i++) { | 46 for (var i = 0; i < 100000; i++) { |
41 nulls += 'null,'; | 47 nulls += 'null,'; |
42 } | 48 } |
43 expected_1 = '[' + nulls + '1]'; | 49 expected_1 = '[' + nulls + '1]'; |
44 expected_2 = '[' + nulls + 'null]'; | 50 expected_2 = '[' + nulls + 'null]'; |
45 assertEquals(expected_1, JSON.stringify(array_1)); | 51 TestStringify(expected_1, array_1); |
46 assertEquals(expected_2, JSON.stringify(array_2)); | 52 TestStringify(expected_2, array_2); |
47 | 53 |
48 // Test JSValue with custom prototype. | 54 // Test JSValue with custom prototype. |
49 var num_wrapper = Object(42); | 55 var num_wrapper = Object(42); |
50 num_wrapper.__proto__ = { __proto__: null, | 56 num_wrapper.__proto__ = { __proto__: null, |
51 toString: function() { return true; } }; | 57 toString: function() { return true; } }; |
52 assertEquals('1', JSON.stringify(num_wrapper)); | 58 TestStringify('1', num_wrapper); |
53 | 59 |
54 var str_wrapper = Object('2'); | 60 var str_wrapper = Object('2'); |
55 str_wrapper.__proto__ = { __proto__: null, | 61 str_wrapper.__proto__ = { __proto__: null, |
56 toString: function() { return true; } }; | 62 toString: function() { return true; } }; |
57 assertEquals('"true"', JSON.stringify(str_wrapper)); | 63 TestStringify('"true"', str_wrapper); |
58 | 64 |
59 var bool_wrapper = Object(false); | 65 var bool_wrapper = Object(false); |
60 bool_wrapper.__proto__ = { __proto__: null, | 66 bool_wrapper.__proto__ = { __proto__: null, |
61 toString: function() { return true; } }; | 67 toString: function() { return true; } }; |
62 // Note that toString function is not evaluated here! | 68 // Note that toString function is not evaluated here! |
63 assertEquals('false', JSON.stringify(bool_wrapper)); | 69 TestStringify('false', bool_wrapper); |
64 | 70 |
65 // Test getters. | 71 // Test getters. |
66 var counter = 0; | 72 var counter = 0; |
67 var getter_obj = { get getter() { | 73 var getter_obj = { get getter() { |
68 counter++; | 74 counter++; |
69 return 123; | 75 return 123; |
70 } }; | 76 } }; |
71 assertEquals('{"getter":123}', JSON.stringify(getter_obj)); | 77 TestStringify('{"getter":123}', getter_obj); |
72 assertEquals(1, counter); | 78 assertEquals(2, counter); |
73 | 79 |
74 // Test toJSON function. | 80 // Test toJSON function. |
75 var tojson_obj = { toJSON: function() { | 81 var tojson_obj = { toJSON: function() { |
76 counter++; | 82 counter++; |
77 return [1, 2]; | 83 return [1, 2]; |
78 }, | 84 }, |
79 a: 1}; | 85 a: 1}; |
80 assertEquals('[1,2]', JSON.stringify(tojson_obj)); | 86 TestStringify('[1,2]', tojson_obj); |
81 assertEquals(2, counter); | 87 assertEquals(4, counter); |
82 | 88 |
83 // Test that we don't recursively look for the toJSON function. | 89 // Test that we don't recursively look for the toJSON function. |
84 var tojson_proto_obj = { a: 'fail' }; | 90 var tojson_proto_obj = { a: 'fail' }; |
85 tojson_proto_obj.__proto__ = { toJSON: function() { | 91 tojson_proto_obj.__proto__ = { toJSON: function() { |
86 counter++; | 92 counter++; |
87 return tojson_obj; | 93 return tojson_obj; |
88 } }; | 94 } }; |
89 assertEquals('{"a":1}', JSON.stringify(tojson_proto_obj)); | 95 TestStringify('{"a":1}', tojson_proto_obj); |
90 | 96 |
91 // Test toJSON produced by a getter. | 97 // Test toJSON produced by a getter. |
92 var tojson_via_getter = { get toJSON() { | 98 var tojson_via_getter = { get toJSON() { |
93 return function(x) { | 99 return function(x) { |
94 counter++; | 100 counter++; |
95 return 321; | 101 return 321; |
96 }; | 102 }; |
97 }, | 103 }, |
98 a: 1 }; | 104 a: 1 }; |
99 assertEquals('321', JSON.stringify(tojson_via_getter)); | 105 TestStringify('321', tojson_via_getter); |
100 | 106 |
101 // Test toJSON with key. | 107 // Test toJSON with key. |
102 tojson_obj = { toJSON: function(key) { return key + key; } }; | 108 tojson_obj = { toJSON: function(key) { return key + key; } }; |
103 var tojson_with_key_1 = { a: tojson_obj, b: tojson_obj }; | 109 var tojson_with_key_1 = { a: tojson_obj, b: tojson_obj }; |
104 assertEquals('{"a":"aa","b":"bb"}', JSON.stringify(tojson_with_key_1)); | 110 TestStringify('{"a":"aa","b":"bb"}', tojson_with_key_1); |
105 var tojson_with_key_2 = [ tojson_obj, tojson_obj ]; | 111 var tojson_with_key_2 = [ tojson_obj, tojson_obj ]; |
106 assertEquals('["00","11"]', JSON.stringify(tojson_with_key_2)); | 112 TestStringify('["00","11"]', tojson_with_key_2); |
107 | 113 |
108 // Test toJSON with exception. | 114 // Test toJSON with exception. |
109 var tojson_ex = { toJSON: function(key) { throw "123" } }; | 115 var tojson_ex = { toJSON: function(key) { throw "123" } }; |
110 assertThrows(function() { JSON.stringify(tojson_ex); }); | 116 assertThrows(function() { JSON.stringify(tojson_ex); }); |
| 117 assertThrows(function() { JSON.stringify(tojson_ex, null, 0); }); |
111 | 118 |
112 // Test toJSON with access to this. | 119 // Test toJSON with access to this. |
113 var obj = { toJSON: function(key) { return this.a + key; }, a: "x" }; | 120 var obj = { toJSON: function(key) { return this.a + key; }, a: "x" }; |
114 assertEquals('{"y":"xy"}', JSON.stringify({y: obj})); | 121 TestStringify('{"y":"xy"}', {y: obj}); |
115 | 122 |
116 // Test holes in arrays. | 123 // Test holes in arrays. |
117 var fast_smi = [1, 2, 3, 4]; | 124 var fast_smi = [1, 2, 3, 4]; |
118 fast_smi.__proto__ = [7, 7, 7, 7]; | 125 fast_smi.__proto__ = [7, 7, 7, 7]; |
119 delete fast_smi[2]; | 126 delete fast_smi[2]; |
120 assertTrue(%HasFastSmiElements(fast_smi)); | 127 assertTrue(%HasFastSmiElements(fast_smi)); |
121 assertEquals("[1,2,7,4]", JSON.stringify(fast_smi)); | 128 TestStringify("[1,2,7,4]", fast_smi); |
122 | 129 |
123 var fast_double = [1.1, 2, 3, 4]; | 130 var fast_double = [1.1, 2, 3, 4]; |
124 fast_double.__proto__ = [7, 7, 7, 7]; | 131 fast_double.__proto__ = [7, 7, 7, 7]; |
125 | 132 |
126 delete fast_double[2]; | 133 delete fast_double[2]; |
127 assertTrue(%HasFastDoubleElements(fast_double)); | 134 assertTrue(%HasFastDoubleElements(fast_double)); |
128 assertEquals("[1.1,2,7,4]", JSON.stringify(fast_double)); | 135 TestStringify("[1.1,2,7,4]", fast_double); |
129 | 136 |
130 var fast_obj = [1, 2, {}, {}]; | 137 var fast_obj = [1, 2, {}, {}]; |
131 fast_obj.__proto__ = [7, 7, 7, 7]; | 138 fast_obj.__proto__ = [7, 7, 7, 7]; |
132 | 139 |
133 delete fast_obj[2]; | 140 delete fast_obj[2]; |
134 assertTrue(%HasFastObjectElements(fast_obj)); | 141 assertTrue(%HasFastObjectElements(fast_obj)); |
135 assertEquals("[1,2,7,{}]", JSON.stringify(fast_obj)); | 142 TestStringify("[1,2,7,{}]", fast_obj); |
136 | 143 |
137 var getter_side_effect = { a: 1, | 144 var getter_side_effect = { a: 1, |
138 get b() { | 145 get b() { |
139 delete this.a; | 146 delete this.a; |
140 delete this.c; | 147 delete this.c; |
141 this.e = 5; | 148 this.e = 5; |
142 return 2; | 149 return 2; |
143 }, | 150 }, |
144 c: 3, | 151 c: 3, |
145 d: 4 }; | 152 d: 4 }; |
146 assertEquals('{"a":1,"b":2,"d":4}', JSON.stringify(getter_side_effect)); | 153 assertEquals('{"a":1,"b":2,"d":4}', JSON.stringify(getter_side_effect)); |
147 assertEquals('{"b":2,"d":4,"e":5}', JSON.stringify(getter_side_effect)); | 154 assertEquals('{"b":2,"d":4,"e":5}', JSON.stringify(getter_side_effect)); |
148 | 155 |
| 156 getter_side_effect = { a: 1, |
| 157 get b() { |
| 158 delete this.a; |
| 159 delete this.c; |
| 160 this.e = 5; |
| 161 return 2; |
| 162 }, |
| 163 c: 3, |
| 164 d: 4 }; |
| 165 assertEquals('{"a":1,"b":2,"d":4}', |
| 166 JSON.stringify(getter_side_effect, null, 0)); |
| 167 assertEquals('{"b":2,"d":4,"e":5}', |
| 168 JSON.stringify(getter_side_effect, null, 0)); |
| 169 |
149 var non_enum = {}; | 170 var non_enum = {}; |
150 non_enum.a = 1; | 171 non_enum.a = 1; |
151 Object.defineProperty(non_enum, "b", { value: 2, enumerable: false }); | 172 Object.defineProperty(non_enum, "b", { value: 2, enumerable: false }); |
152 non_enum.c = 3; | 173 non_enum.c = 3; |
153 assertEquals('{"a":1,"c":3}', JSON.stringify(non_enum)); | 174 TestStringify('{"a":1,"c":3}', non_enum); |
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