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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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29 #define V8_ACCESSORS_H_ | 29 #define V8_ACCESSORS_H_ |
30 | 30 |
31 #include "allocation.h" | 31 #include "allocation.h" |
32 #include "v8globals.h" | 32 #include "v8globals.h" |
33 | 33 |
34 namespace v8 { | 34 namespace v8 { |
35 namespace internal { | 35 namespace internal { |
36 | 36 |
37 // The list of accessor descriptors. This is a second-order macro | 37 // The list of accessor descriptors. This is a second-order macro |
38 // taking a macro to be applied to all accessor descriptor names. | 38 // taking a macro to be applied to all accessor descriptor names. |
39 #define ACCESSOR_DESCRIPTOR_LIST(V) \ | |
40 | |
41 | |
42 #define ACCESSOR_INFO_LIST(V) \ | 39 #define ACCESSOR_INFO_LIST(V) \ |
43 V(ArrayLength) \ | 40 V(ArrayLength) \ |
44 V(FunctionArguments) \ | 41 V(FunctionArguments) \ |
45 V(FunctionCaller) \ | 42 V(FunctionCaller) \ |
46 V(FunctionName) \ | 43 V(FunctionName) \ |
47 V(FunctionLength) \ | 44 V(FunctionLength) \ |
48 V(FunctionPrototype) \ | 45 V(FunctionPrototype) \ |
49 V(ScriptColumnOffset) \ | 46 V(ScriptColumnOffset) \ |
50 V(ScriptCompilationType) \ | 47 V(ScriptCompilationType) \ |
51 V(ScriptContextData) \ | 48 V(ScriptContextData) \ |
52 V(ScriptEvalFromScript) \ | 49 V(ScriptEvalFromScript) \ |
53 V(ScriptEvalFromScriptPosition) \ | 50 V(ScriptEvalFromScriptPosition) \ |
54 V(ScriptEvalFromFunctionName) \ | 51 V(ScriptEvalFromFunctionName) \ |
55 V(ScriptId) \ | 52 V(ScriptId) \ |
56 V(ScriptLineEnds) \ | 53 V(ScriptLineEnds) \ |
57 V(ScriptLineOffset) \ | 54 V(ScriptLineOffset) \ |
58 V(ScriptName) \ | 55 V(ScriptName) \ |
59 V(ScriptSource) \ | 56 V(ScriptSource) \ |
60 V(ScriptType) \ | 57 V(ScriptType) \ |
61 V(StringLength) | 58 V(StringLength) |
62 | 59 |
63 // Accessors contains all predefined proxy accessors. | 60 // Accessors contains all predefined proxy accessors. |
64 | 61 |
65 class Accessors : public AllStatic { | 62 class Accessors : public AllStatic { |
66 public: | 63 public: |
67 // Accessor descriptors. | 64 // Accessor descriptors. |
68 #define ACCESSOR_DESCRIPTOR_DECLARATION(name) \ | |
69 static const AccessorDescriptor name; | |
70 ACCESSOR_DESCRIPTOR_LIST(ACCESSOR_DESCRIPTOR_DECLARATION) | |
71 #undef ACCESSOR_DESCRIPTOR_DECLARATION | |
72 | |
73 #define ACCESSOR_INFO_DECLARATION(name) \ | 65 #define ACCESSOR_INFO_DECLARATION(name) \ |
74 static void name##Getter( \ | 66 static void name##Getter( \ |
75 v8::Local<v8::String> name, \ | 67 v8::Local<v8::String> name, \ |
76 const v8::PropertyCallbackInfo<v8::Value>& info); \ | 68 const v8::PropertyCallbackInfo<v8::Value>& info); \ |
77 static void name##Setter( \ | 69 static void name##Setter( \ |
78 v8::Local<v8::String> name, \ | 70 v8::Local<v8::String> name, \ |
79 v8::Local<v8::Value> value, \ | 71 v8::Local<v8::Value> value, \ |
80 const v8::PropertyCallbackInfo<void>& info); \ | 72 const v8::PropertyCallbackInfo<void>& info); \ |
81 static Handle<AccessorInfo> name##Info( \ | 73 static Handle<AccessorInfo> name##Info( \ |
82 Isolate* isolate, \ | 74 Isolate* isolate, \ |
83 PropertyAttributes attributes); | 75 PropertyAttributes attributes); |
84 ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION) | 76 ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION) |
85 #undef ACCESSOR_INFO_DECLARATION | 77 #undef ACCESSOR_INFO_DECLARATION |
86 | 78 |
87 enum DescriptorId { | 79 enum DescriptorId { |
88 #define ACCESSOR_DESCRIPTOR_DECLARATION(name) \ | |
89 k##name, | |
90 ACCESSOR_DESCRIPTOR_LIST(ACCESSOR_DESCRIPTOR_DECLARATION) | |
91 #undef ACCESSOR_DESCRIPTOR_DECLARATION | |
92 #define ACCESSOR_INFO_DECLARATION(name) \ | 80 #define ACCESSOR_INFO_DECLARATION(name) \ |
93 k##name##Getter, \ | 81 k##name##Getter, \ |
94 k##name##Setter, | 82 k##name##Setter, |
95 ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION) | 83 ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION) |
96 #undef ACCESSOR_INFO_DECLARATION | 84 #undef ACCESSOR_INFO_DECLARATION |
97 descriptorCount | 85 descriptorCount |
98 }; | 86 }; |
99 | 87 |
100 // Accessor functions called directly from the runtime system. | 88 // Accessor functions called directly from the runtime system. |
101 static Handle<Object> FunctionSetPrototype(Handle<JSFunction> object, | 89 static Handle<Object> FunctionSetPrototype(Handle<JSFunction> object, |
102 Handle<Object> value); | 90 Handle<Object> value); |
103 static Handle<Object> FunctionGetPrototype(Handle<JSFunction> object); | 91 static Handle<Object> FunctionGetPrototype(Handle<JSFunction> object); |
104 static Handle<Object> FunctionGetArguments(Handle<JSFunction> object); | 92 static Handle<Object> FunctionGetArguments(Handle<JSFunction> object); |
105 | 93 |
106 // Accessor infos. | 94 // Accessor infos. |
107 static Handle<AccessorInfo> MakeModuleExport( | 95 static Handle<AccessorInfo> MakeModuleExport( |
108 Handle<String> name, int index, PropertyAttributes attributes); | 96 Handle<String> name, int index, PropertyAttributes attributes); |
109 | 97 |
110 // Returns true for properties that are accessors to object fields. | 98 // Returns true for properties that are accessors to object fields. |
111 // If true, *object_offset contains offset of object field. | 99 // If true, *object_offset contains offset of object field. |
112 template <class T> | 100 template <class T> |
113 static bool IsJSObjectFieldAccessor(typename T::TypeHandle type, | 101 static bool IsJSObjectFieldAccessor(typename T::TypeHandle type, |
114 Handle<String> name, | 102 Handle<String> name, |
115 int* object_offset); | 103 int* object_offset); |
116 | 104 |
| 105 static Handle<AccessorInfo> MakeAccessor( |
| 106 Isolate* isolate, |
| 107 Handle<String> name, |
| 108 AccessorGetterCallback getter, |
| 109 AccessorSetterCallback setter, |
| 110 PropertyAttributes attributes); |
| 111 |
117 private: | 112 private: |
118 static Object* FunctionGetCaller(Isolate* isolate, | |
119 Object* object, | |
120 void*); | |
121 static Object* ArraySetLength(Isolate* isolate, | |
122 JSObject* object, | |
123 Object*, | |
124 void*); | |
125 static Object* ArrayGetLength(Isolate* isolate, Object* object, void*); | |
126 | |
127 // Helper functions. | 113 // Helper functions. |
128 static Handle<Object> FlattenNumber(Isolate* isolate, Handle<Object> value); | 114 static Handle<Object> FlattenNumber(Isolate* isolate, Handle<Object> value); |
129 static Object* IllegalSetter(Isolate* isolate, | |
130 JSObject*, | |
131 Object*, | |
132 void*); | |
133 static Object* IllegalGetAccessor(Isolate* isolate, Object* object, void*); | |
134 static Object* ReadOnlySetAccessor(Isolate* isolate, | |
135 JSObject*, | |
136 Object* value, | |
137 void*); | |
138 }; | 115 }; |
139 | 116 |
140 } } // namespace v8::internal | 117 } } // namespace v8::internal |
141 | 118 |
142 #endif // V8_ACCESSORS_H_ | 119 #endif // V8_ACCESSORS_H_ |
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