| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #ifndef VM_SYMBOLS_H_ |
| #define VM_SYMBOLS_H_ |
| |
| #include "vm/object.h" |
| #include "vm/snapshot_ids.h" |
| |
| namespace dart { |
| |
| // Forward declarations. |
| class Isolate; |
| class ObjectPointerVisitor; |
| |
| #define PREDEFINED_SYMBOLS_LIST(V) \ |
| V(Empty, "") \ |
| V(Dot, ".") \ |
| V(Equals, "=") \ |
| V(IndexToken, "[]") \ |
| V(AssignIndexToken, "[]=") \ |
| V(TopLevel, "::") \ |
| V(DefaultLabel, ":L") \ |
| V(This, "this") \ |
| V(HasNext, "hasNext") \ |
| V(Next, "next") \ |
| V(Value, "value") \ |
| V(ExprTemp, ":expr_temp") \ |
| V(AnonymousClosure, "<anonymous closure>") \ |
| V(PhaseParameter, ":phase") \ |
| V(TypeArgumentsParameter, ":type_arguments") \ |
| V(AssertionError, "AssertionErrorImplementation") \ |
| V(TypeError, "TypeErrorImplementation") \ |
| V(FallThroughError, "FallThroughErrorImplementation") \ |
| V(AbstractClassInstantiationError, \ |
| "AbstractClassInstantiationErrorImplementation") \ |
| V(NoSuchMethodError, "NoSuchMethodErrorImplementation") \ |
| V(ThrowNew, "_throwNew") \ |
| V(ListLiteralFactoryClass, "_ListLiteralFactory") \ |
| V(ListLiteralFactory, "List.fromLiteral") \ |
| V(ListImplementation, "ListImplementation") \ |
| V(ListFactory, "List.") \ |
| V(MapLiteralFactoryClass, "_MapLiteralFactory") \ |
| V(MapLiteralFactory, "Map.fromLiteral") \ |
| V(ImmutableMap, "ImmutableMap") \ |
| V(ImmutableMapConstructor, "ImmutableMap._create") \ |
| V(StringBase, "_StringBase") \ |
| V(Interpolate, "_interpolate") \ |
| V(GetIterator, "iterator") \ |
| V(NoSuchMethod, "noSuchMethod") \ |
| V(SavedArgDescVarPrefix, ":saved_args_desc_var") \ |
| V(SavedEntryContextVar, ":saved_entry_context_var") \ |
| V(SavedContextVar, ":saved_context_var") \ |
| V(ExceptionVar, ":exception_var") \ |
| V(StacktraceVar, ":stacktrace_var") \ |
| V(ListLiteralElement, "list literal element") \ |
| V(ForInIter, ":for-in-iter") \ |
| V(Library, "library") \ |
| V(Import, "import") \ |
| V(Source, "source") \ |
| V(Class, "Class") \ |
| V(Null, "Null") \ |
| V(Dynamic, "dynamic") \ |
| V(Void, "void") \ |
| V(UnresolvedClass, "UnresolvedClass") \ |
| V(Type, "_Type") \ |
| V(TypeParameter, "_TypeParameter") \ |
| V(TypeArguments, "TypeArguments") \ |
| V(InstantiatedTypeArguments, "InstantiatedTypeArguments") \ |
| V(PatchClass, "PatchClass") \ |
| V(Function, "Function") \ |
| V(ClosureData, "ClosureData") \ |
| V(RedirectionData, "RedirectionData") \ |
| V(Field, "Field") \ |
| V(LiteralToken, "LiteralToken") \ |
| V(TokenStream, "TokenStream") \ |
| V(Script, "Script") \ |
| V(LibraryClass, "Library") \ |
| V(LibraryPrefix, "LibraryPrefix") \ |
| V(Namespace, "Namespace") \ |
| V(Code, "Code") \ |
| V(Instructions, "Instructions") \ |
| V(PcDescriptors, "PcDescriptors") \ |
| V(Stackmap, "Stackmap") \ |
| V(LocalVarDescriptors, "LocalVarDescriptors") \ |
| V(ExceptionHandlers, "ExceptionHandlers") \ |
| V(DeoptInfo, "DeoptInfo") \ |
| V(Context, "Context") \ |
| V(ContextScope, "ContextScope") \ |
| V(ICData, "ICData") \ |
| V(SubtypeTestCache, "SubtypeTestCache") \ |
| V(ApiError, "ApiError") \ |
| V(LanguageError, "LanguageError") \ |
| V(UnhandledException, "UnhandledException") \ |
| V(UnwindError, "UnwindError") \ |
| V(IntegerImplementation, "_IntegerImplementation") \ |
| V(Number, "num") \ |
| V(Smi, "_Smi") \ |
| V(Mint, "_Mint") \ |
| V(Bigint, "_Bigint") \ |
| V(Double, "_Double") \ |
| V(Bool, "bool") \ |
| V(ObjectArray, "_ObjectArray") \ |
| V(GrowableObjectArray, "_GrowableObjectArray") \ |
| V(ImmutableArray, "_ImmutableArray") \ |
| V(OneByteString, "_OneByteString") \ |
| V(TwoByteString, "_TwoByteString") \ |
| V(FourByteString, "_FourByteString") \ |
| V(ExternalOneByteString, "_ExternalOneByteString") \ |
| V(ExternalTwoByteString, "_ExternalTwoByteString") \ |
| V(ExternalFourByteString, "_ExternalFourByteString") \ |
| V(Stacktrace, "Stacktrace") \ |
| V(JSSyntaxRegExp, "JSSyntaxRegExp") \ |
| V(Object, "Object") \ |
| V(_Int8Array, "_Int8Array") \ |
| V(_Uint8Array, "_Uint8Array") \ |
| V(_Int16Array, "_Int16Array") \ |
| V(_Uint16Array, "_Uint16Array") \ |
| V(_Int32Array, "_Int32Array") \ |
| V(_Uint32Array, "_Uint32Array") \ |
| V(_Int64Array, "_Int64Array") \ |
| V(_Uint64Array, "_Uint64Array") \ |
| V(_Float32Array, "_Float32Array") \ |
| V(_Float64Array, "_Float64Array") \ |
| V(_ExternalInt8Array, "_ExternalInt8Array") \ |
| V(_ExternalUint8Array, "_ExternalUint8Array") \ |
| V(_ExternalInt16Array, "_ExternalInt16Array") \ |
| V(_ExternalUint16Array, "_ExternalUint16Array") \ |
| V(_ExternalInt32Array, "_ExternalInt32Array") \ |
| V(_ExternalUint32Array, "_ExternalUint32Array") \ |
| V(_ExternalInt64Array, "_ExternalInt64Array") \ |
| V(_ExternalUint64Array, "_ExternalUint64Array") \ |
| V(_ExternalFloat32Array, "_ExternalFloat32Array") \ |
| V(_ExternalFloat64Array, "_ExternalFloat64Array") \ |
| V(_WeakProperty, "_WeakProperty") \ |
| |
| // Contains a list of frequently used strings in a canonicalized form. This |
| // list is kept in the vm_isolate in order to share the copy across isolates |
| // without having to maintain copies in each isolate. |
| class Symbols : public AllStatic { |
| public: |
| // List of strings that are pre created in the vm isolate. |
| enum { |
| kIllegal = 0, |
| |
| #define DEFINE_SYMBOL_INDEX(symbol, literal) \ |
| k##symbol, |
| PREDEFINED_SYMBOLS_LIST(DEFINE_SYMBOL_INDEX) |
| #undef DEFINE_SYMBOL_INDEX |
| |
| kMaxId, |
| }; |
| |
| // Access methods for symbols stored in the vm isolate. |
| #define DEFINE_SYMBOL_ACCESSOR(symbol, literal) \ |
| static RawString* symbol() { return predefined_[k##symbol]; } |
| PREDEFINED_SYMBOLS_LIST(DEFINE_SYMBOL_ACCESSOR) |
| #undef DEFINE_SYMBOL_ACCESSOR |
| |
| // Initialize frequently used symbols in the vm isolate. |
| static void InitOnce(Isolate* isolate); |
| |
| // Initialize and setup a symbol table for the isolate. |
| static void SetupSymbolTable(Isolate* isolate); |
| |
| // Get number of symbols in an isolate's symbol table. |
| static intptr_t Size(Isolate* isolate); |
| |
| // Helper functions to create a symbol given a string or set of characters. |
| static RawString* New(const char* str); |
| template<typename T> |
| static RawString* New(const T* characters, intptr_t len); |
| static RawString* New(const String& str); |
| static RawString* New(const String& str, |
| intptr_t begin_index, |
| intptr_t length); |
| |
| // Returns char* of predefined symbol. |
| static const char* Name(intptr_t symbol); |
| |
| private: |
| enum { |
| kInitialVMIsolateSymtabSize = ((Symbols::kMaxId + 15) & -16), |
| kInitialSymtabSize = 256 |
| }; |
| |
| // Add the string into the VM isolate symbol table. |
| static void Add(const Array& symbol_table, const String& str); |
| |
| // Insert symbol into symbol table, growing it if necessary. |
| static void InsertIntoSymbolTable(const Array& symbol_table, |
| const String& symbol, |
| intptr_t index); |
| |
| // Grow the symbol table. |
| static void GrowSymbolTable(const Array& symbol_table); |
| |
| // Return index in symbol table if the symbol already exists or |
| // return the index into which the new symbol can be added. |
| template<typename T> |
| static intptr_t FindIndex(const Array& symbol_table, |
| const T* characters, |
| intptr_t len, |
| intptr_t hash); |
| static intptr_t FindIndex(const Array& symbol_table, |
| const String& str, |
| intptr_t begin_index, |
| intptr_t len, |
| intptr_t hash); |
| static intptr_t LookupVMSymbol(RawObject* obj); |
| static RawObject* GetVMSymbol(intptr_t object_id); |
| static bool IsVMSymbolId(intptr_t object_id) { |
| return (object_id >= kMaxPredefinedObjectIds && |
| object_id < (kMaxPredefinedObjectIds + Symbols::kMaxId)); |
| } |
| |
| // List of symbols that are stored in the vm isolate for easy access. |
| static RawString* predefined_[Symbols::kMaxId]; |
| |
| friend class SnapshotReader; |
| friend class SnapshotWriter; |
| friend class ApiMessageReader; |
| |
| DISALLOW_COPY_AND_ASSIGN(Symbols); |
| }; |
| |
| } // namespace dart |
| |
| #endif // VM_SYMBOLS_H_ |
