src/accessors.h
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00001 // Copyright 2006-2008 the V8 project authors. All rights reserved. 00002 // Redistribution and use in source and binary forms, with or without 00003 // modification, are permitted provided that the following conditions are 00004 // met: 00005 // 00006 // * Redistributions of source code must retain the above copyright 00007 // notice, this list of conditions and the following disclaimer. 00008 // * Redistributions in binary form must reproduce the above 00009 // copyright notice, this list of conditions and the following 00010 // disclaimer in the documentation and/or other materials provided 00011 // with the distribution. 00012 // * Neither the name of Google Inc. nor the names of its 00013 // contributors may be used to endorse or promote products derived 00014 // from this software without specific prior written permission. 00015 // 00016 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00017 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00018 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00019 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00020 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00021 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00022 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00023 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00024 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00025 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00026 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 00028 #ifndef V8_ACCESSORS_H_ 00029 #define V8_ACCESSORS_H_ 00030 00031 namespace v8 { namespace internal { 00032 00033 // The list of accessor descriptors. This is a second-order macro 00034 // taking a macro to be applied to all accessor descriptor names. 00035 #define ACCESSOR_DESCRIPTOR_LIST(V) \ 00036 V(FunctionPrototype) \ 00037 V(FunctionLength) \ 00038 V(FunctionName) \ 00039 V(FunctionArguments) \ 00040 V(FunctionCaller) \ 00041 V(ArrayLength) \ 00042 V(StringLength) \ 00043 V(ScriptSource) \ 00044 V(ScriptName) \ 00045 V(ScriptLineOffset) \ 00046 V(ScriptColumnOffset) \ 00047 V(ScriptType) \ 00048 V(ObjectPrototype) 00049 00050 // Accessors contains all predefined proxy accessors. 00051 00052 class Accessors : public AllStatic { 00053 public: 00054 // Accessor descriptors. 00055 #define ACCESSOR_DESCRIPTOR_DECLARATION(name) \ 00056 static const AccessorDescriptor name; 00057 ACCESSOR_DESCRIPTOR_LIST(ACCESSOR_DESCRIPTOR_DECLARATION) 00058 #undef ACCESSOR_DESCRIPTOR_DECLARATION 00059 00060 enum DescriptorId { 00061 #define ACCESSOR_DESCRIPTOR_DECLARATION(name) \ 00062 k##name, 00063 ACCESSOR_DESCRIPTOR_LIST(ACCESSOR_DESCRIPTOR_DECLARATION) 00064 #undef ACCESSOR_DESCRIPTOR_DECLARATION 00065 descriptorCount 00066 }; 00067 00068 // Accessor functions called directly from the runtime system. 00069 static Object* FunctionGetPrototype(Object* object, void*); 00070 static Object* FunctionSetPrototype(JSObject* object, Object* value, void*); 00071 private: 00072 // Accessor functions only used through the descriptor. 00073 static Object* FunctionGetLength(Object* object, void*); 00074 static Object* FunctionGetName(Object* object, void*); 00075 static Object* FunctionGetArguments(Object* object, void*); 00076 static Object* FunctionGetCaller(Object* object, void*); 00077 static Object* ArraySetLength(JSObject* object, Object* value, void*); 00078 static Object* ArrayGetLength(Object* object, void*); 00079 static Object* StringGetLength(Object* object, void*); 00080 static Object* ScriptGetName(Object* object, void*); 00081 static Object* ScriptGetSource(Object* object, void*); 00082 static Object* ScriptGetLineOffset(Object* object, void*); 00083 static Object* ScriptGetColumnOffset(Object* object, void*); 00084 static Object* ScriptGetType(Object* object, void*); 00085 static Object* ObjectGetPrototype(Object* receiver, void*); 00086 static Object* ObjectSetPrototype(JSObject* receiver, Object* value, void*); 00087 00088 // Helper functions. 00089 static Object* FlattenNumber(Object* value); 00090 static Object* IllegalSetter(JSObject*, Object*, void*); 00091 static Object* IllegalGetAccessor(Object* object, void*); 00092 static Object* ReadOnlySetAccessor(JSObject*, Object* value, void*); 00093 }; 00094 00095 } } // namespace v8::internal 00096 00097 #endif // V8_ACCESSORS_H_
