1 // Copyright 2012 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef V8_ACCESSORS_H_ 6 #define V8_ACCESSORS_H_ 7 8 #include "include/v8.h" 9 #include "src/allocation.h" 10 #include "src/globals.h" 11 #include "src/handles.h" 12 #include "src/property-details.h" 13 14 namespace v8 { 15 namespace internal { 16 17 // Forward declarations. 18 class AccessorInfo; 19 20 // The list of accessor descriptors. This is a second-order macro 21 // taking a macro to be applied to all accessor descriptor names. 22 #define ACCESSOR_INFO_LIST(V) \ 23 V(ArgumentsIterator) \ 24 V(ArrayLength) \ 25 V(BoundFunctionLength) \ 26 V(BoundFunctionName) \ 27 V(FunctionArguments) \ 28 V(FunctionCaller) \ 29 V(FunctionName) \ 30 V(FunctionLength) \ 31 V(FunctionPrototype) \ 32 V(ScriptColumnOffset) \ 33 V(ScriptCompilationType) \ 34 V(ScriptContextData) \ 35 V(ScriptEvalFromScript) \ 36 V(ScriptEvalFromScriptPosition) \ 37 V(ScriptEvalFromFunctionName) \ 38 V(ScriptId) \ 39 V(ScriptLineEnds) \ 40 V(ScriptLineOffset) \ 41 V(ScriptName) \ 42 V(ScriptSource) \ 43 V(ScriptType) \ 44 V(ScriptSourceUrl) \ 45 V(ScriptSourceMappingUrl) \ 46 V(ScriptIsEmbedderDebugScript) \ 47 V(StringLength) 48 49 #define ACCESSOR_SETTER_LIST(V) \ 50 V(ReconfigureToDataProperty) \ 51 V(ArrayLengthSetter) \ 52 V(FunctionPrototypeSetter) 53 54 // Accessors contains all predefined proxy accessors. 55 56 class Accessors : public AllStatic { 57 public: 58 // Accessor descriptors. 59 #define ACCESSOR_INFO_DECLARATION(name) \ 60 static void name##Getter( \ 61 v8::Local<v8::Name> name, \ 62 const v8::PropertyCallbackInfo<v8::Value>& info); \ 63 static Handle<AccessorInfo> name##Info( \ 64 Isolate* isolate, \ 65 PropertyAttributes attributes); 66 ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION) 67 #undef ACCESSOR_INFO_DECLARATION 68 69 #define ACCESSOR_SETTER_DECLARATION(name) \ 70 static void name(v8::Local<v8::Name> name, v8::Local<v8::Value> value, \ 71 const v8::PropertyCallbackInfo<void>& info); 72 ACCESSOR_SETTER_LIST(ACCESSOR_SETTER_DECLARATION) 73 #undef ACCESSOR_SETTER_DECLARATION 74 75 enum DescriptorId { 76 #define ACCESSOR_INFO_DECLARATION(name) \ 77 k##name##Getter, \ 78 k##name##Setter, 79 ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION) 80 #undef ACCESSOR_INFO_DECLARATION 81 descriptorCount 82 }; 83 84 // Accessor functions called directly from the runtime system. 85 MUST_USE_RESULT static MaybeHandle<Object> FunctionSetPrototype( 86 Handle<JSFunction> object, Handle<Object> value); 87 static Handle<JSObject> FunctionGetArguments(Handle<JSFunction> object); 88 89 // Accessor infos. 90 static Handle<AccessorInfo> MakeModuleExport( 91 Handle<String> name, int index, PropertyAttributes attributes); 92 93 // Returns true for properties that are accessors to object fields. 94 // If true, *object_offset contains offset of object field. 95 static bool IsJSObjectFieldAccessor(Handle<Map> map, Handle<Name> name, 96 int* object_offset); 97 98 static Handle<AccessorInfo> MakeAccessor( 99 Isolate* isolate, 100 Handle<Name> name, 101 AccessorNameGetterCallback getter, 102 AccessorNameSetterCallback setter, 103 PropertyAttributes attributes); 104 }; 105 106 } // namespace internal 107 } // namespace v8 108 109 #endif // V8_ACCESSORS_H_ 110
