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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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32 // have only unconfigurable properties on the prototype, and the methods | 32 // have only unconfigurable properties on the prototype, and the methods |
33 // are also non-writable. | 33 // are also non-writable. |
34 | 34 |
35 var names = Object.getOwnPropertyNames(builtins); | 35 var names = Object.getOwnPropertyNames(builtins); |
36 | 36 |
37 function isFunction(obj) { | 37 function isFunction(obj) { |
38 return typeof obj == "function"; | 38 return typeof obj == "function"; |
39 } | 39 } |
40 | 40 |
41 function isV8Native(name) { | 41 function isV8Native(name) { |
42 return name == "GeneratorFunctionPrototype" || | 42 return name == "GeneratorFunction" || |
| 43 name == "GeneratorFunctionPrototype" || |
43 name == "SetIterator" || | 44 name == "SetIterator" || |
44 name == "MapIterator" || | 45 name == "MapIterator" || |
45 name == "ArrayIterator" || | 46 name == "ArrayIterator" || |
46 name == "StringIterator"; | 47 name == "StringIterator"; |
47 } | 48 } |
| 49 var V8NativePrototypes = { |
| 50 GeneratorFunction: Function.prototype, |
| 51 // TODO(jugglinmike): Update the following values to the %IteratorPrototype% |
| 52 // intrinsic once it is implemented. |
| 53 // Issue 3568: Generator Prototype should have an object between itself |
| 54 // and Object.prototype |
| 55 // https://code.google.com/p/v8/issues/detail?id=3568 |
| 56 GeneratorFunctionPrototype: Object.prototype, |
| 57 SetIterator: Object.prototype, |
| 58 MapIterator: Object.prototype, |
| 59 ArrayIterator: Object.prototype, |
| 60 StringIterator: Object.prototype |
| 61 }; |
48 | 62 |
49 function checkConstructor(func, name) { | 63 function checkConstructor(func, name) { |
50 // A constructor is a function with a prototype and properties on the | 64 // A constructor is a function with a prototype and properties on the |
51 // prototype object besides "constructor"; | 65 // prototype object besides "constructor"; |
52 if (name.charAt(0) == "$") return; | 66 if (name.charAt(0) == "$") return; |
53 if (typeof func.prototype != "object") return; | 67 if (typeof func.prototype != "object") return; |
54 var propNames = Object.getOwnPropertyNames(func.prototype); | 68 var propNames = Object.getOwnPropertyNames(func.prototype); |
55 if (propNames.length == 0 || | 69 if (propNames.length == 0 || |
56 (propNames.length == 1 && propNames[0] == "constructor")) { | 70 (propNames.length == 1 && propNames[0] == "constructor")) { |
57 // Not a constructor. | 71 // Not a constructor. |
58 return; | 72 return; |
59 } | 73 } |
60 var proto_desc = Object.getOwnPropertyDescriptor(func, "prototype"); | 74 var proto_desc = Object.getOwnPropertyDescriptor(func, "prototype"); |
61 assertTrue(proto_desc.hasOwnProperty("value"), name); | 75 assertTrue(proto_desc.hasOwnProperty("value"), name); |
62 assertFalse(proto_desc.writable, name); | 76 assertFalse(proto_desc.writable, name); |
63 assertFalse(proto_desc.configurable, name); | 77 assertFalse(proto_desc.configurable, name); |
64 var prototype = proto_desc.value; | 78 var prototype = proto_desc.value; |
65 assertEquals(isV8Native(name) ? Object.prototype : null, | 79 assertEquals(V8NativePrototypes[name] || null, |
66 Object.getPrototypeOf(prototype), | 80 Object.getPrototypeOf(prototype), |
67 name); | 81 name); |
68 for (var i = 0; i < propNames.length; i++) { | 82 for (var i = 0; i < propNames.length; i++) { |
69 var propName = propNames[i]; | 83 var propName = propNames[i]; |
70 if (propName == "constructor") continue; | 84 if (propName == "constructor") continue; |
71 if (isV8Native(name)) continue; | 85 if (isV8Native(name)) continue; |
72 var testName = name + "-" + propName; | 86 var testName = name + "-" + propName; |
73 var propDesc = Object.getOwnPropertyDescriptor(prototype, propName); | 87 var propDesc = Object.getOwnPropertyDescriptor(prototype, propName); |
74 assertTrue(propDesc.hasOwnProperty("value"), testName); | 88 assertTrue(propDesc.hasOwnProperty("value"), testName); |
75 assertFalse(propDesc.configurable, testName); | 89 assertFalse(propDesc.configurable, testName); |
76 if (isFunction(propDesc.value)) { | 90 if (isFunction(propDesc.value)) { |
77 assertFalse(propDesc.writable, testName); | 91 assertFalse(propDesc.writable, testName); |
78 } | 92 } |
79 } | 93 } |
80 } | 94 } |
81 | 95 |
82 for (var i = 0; i < names.length; i++) { | 96 for (var i = 0; i < names.length; i++) { |
83 var name = names[i]; | 97 var name = names[i]; |
84 var desc = Object.getOwnPropertyDescriptor(builtins, name); | 98 var desc = Object.getOwnPropertyDescriptor(builtins, name); |
85 assertTrue(desc.hasOwnProperty("value")); | 99 assertTrue(desc.hasOwnProperty("value")); |
86 var value = desc.value; | 100 var value = desc.value; |
87 if (isFunction(value)) { | 101 if (isFunction(value)) { |
88 checkConstructor(value, name); | 102 checkConstructor(value, name); |
89 } | 103 } |
90 } | 104 } |
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