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| 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 // Flags: --harmony |
| 29 |
| 30 function testStringify(expected, object) { |
| 31 // Test fast case that bails out to slow case. |
| 32 assertEquals(expected, JSON.stringify(object)); |
| 33 // Test slow case. |
| 34 assertEquals(expected, JSON.stringify(object, undefined, 0)); |
| 35 } |
| 36 |
| 37 // Test serializing a proxy, function proxy and objects that contain them. |
| 38 var handler1 = { |
| 39 get: function(target, name) { |
| 40 return name.toUpperCase(); |
| 41 }, |
| 42 enumerate: function(target) { |
| 43 return ['a', 'b', 'c']; |
| 44 }, |
| 45 getOwnPropertyDescriptor: function(target, name) { |
| 46 return { enumerable: true }; |
| 47 } |
| 48 } |
| 49 |
| 50 var proxy1 = Proxy.create(handler1); |
| 51 testStringify('{"a":"A","b":"B","c":"C"}', proxy1); |
| 52 |
| 53 var proxy_fun = Proxy.createFunction(handler1, function() { return 1; }); |
| 54 testStringify(undefined, proxy_fun); |
| 55 testStringify('[1,null]', [1, proxy_fun]); |
| 56 |
| 57 var parent1a = { b: proxy1 }; |
| 58 testStringify('{"b":{"a":"A","b":"B","c":"C"}}', parent1a); |
| 59 |
| 60 var parent1b = { a: 123, b: proxy1, c: true }; |
| 61 testStringify('{"a":123,"b":{"a":"A","b":"B","c":"C"},"c":true}', parent1b); |
| 62 |
| 63 var parent1c = [123, proxy1, true]; |
| 64 testStringify('[123,{"a":"A","b":"B","c":"C"},true]', parent1c); |
| 65 |
| 66 // Proxy with side effect. |
| 67 var handler2 = { |
| 68 get: function(target, name) { |
| 69 delete parent2.c; |
| 70 return name.toUpperCase(); |
| 71 }, |
| 72 enumerate: function(target) { |
| 73 return ['a', 'b', 'c']; |
| 74 }, |
| 75 getOwnPropertyDescriptor: function(target, name) { |
| 76 return { enumerable: true }; |
| 77 } |
| 78 } |
| 79 |
| 80 var proxy2 = Proxy.create(handler2); |
| 81 var parent2 = { a: "delete", b: proxy2, c: "remove" }; |
| 82 var expected2 = '{"a":"delete","b":{"a":"A","b":"B","c":"C"}}'; |
| 83 assertEquals(expected2, JSON.stringify(parent2)); |
| 84 parent2.c = "remove"; // Revert side effect. |
| 85 assertEquals(expected2, JSON.stringify(parent2, undefined, 0)); |
| 86 |
| 87 // Proxy with a get function that uses the first argument. |
| 88 var handler3 = { |
| 89 get: function(target, name) { |
| 90 if (name == 'valueOf') return function() { return "proxy" }; |
| 91 return name + "(" + target + ")"; |
| 92 }, |
| 93 enumerate: function(target) { |
| 94 return ['a', 'b', 'c']; |
| 95 }, |
| 96 getOwnPropertyDescriptor: function(target, name) { |
| 97 return { enumerable: true }; |
| 98 } |
| 99 } |
| 100 |
| 101 var proxy3 = Proxy.create(handler3); |
| 102 var parent3 = { x: 123, y: proxy3 } |
| 103 testStringify('{"x":123,"y":{"a":"a(proxy)","b":"b(proxy)","c":"c(proxy)"}}', |
| 104 parent3); |
| 105 |
| 106 // Empty proxy. |
| 107 var handler4 = { |
| 108 get: function(target, name) { |
| 109 return 0; |
| 110 }, |
| 111 enumerate: function(target) { |
| 112 return []; |
| 113 }, |
| 114 getOwnPropertyDescriptor: function(target, name) { |
| 115 return { enumerable: false }; |
| 116 } |
| 117 } |
| 118 |
| 119 var proxy4 = Proxy.create(handler4); |
| 120 testStringify('{}', proxy4); |
| 121 testStringify('{"a":{}}', { a: proxy4 }); |
| 122 |
| 123 // Proxy that provides a toJSON function that uses this. |
| 124 var handler5 = { |
| 125 get: function(target, name) { |
| 126 if (name == 'z') return 97000; |
| 127 return function(key) { return key.charCodeAt(0) + this.z; }; |
| 128 }, |
| 129 enumerate: function(target) { |
| 130 return ['toJSON', 'z']; |
| 131 }, |
| 132 getOwnPropertyDescriptor: function(target, name) { |
| 133 return { enumerable: true }; |
| 134 } |
| 135 } |
| 136 |
| 137 var proxy5 = Proxy.create(handler5); |
| 138 testStringify('{"a":97097}', { a: proxy5 }); |
| 139 |
| 140 // Proxy that provides a toJSON function that returns undefined. |
| 141 var handler6 = { |
| 142 get: function(target, name) { |
| 143 return function(key) { return undefined; }; |
| 144 }, |
| 145 enumerate: function(target) { |
| 146 return ['toJSON']; |
| 147 }, |
| 148 getOwnPropertyDescriptor: function(target, name) { |
| 149 return { enumerable: true }; |
| 150 } |
| 151 } |
| 152 |
| 153 var proxy6 = Proxy.create(handler6); |
| 154 testStringify('[1,null,true]', [1, proxy6, true]); |
| 155 testStringify('{"a":1,"c":true}', {a: 1, b: proxy6, c: true}); |
| 156 |
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