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// 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/growable_array.h"
#include "vm/object.h"
#include "vm/snapshot_ids.h"
namespace dart {
// Forward declarations.
class Isolate;
class ObjectPointerVisitor;
// One-character symbols are added implicitly.
#define PREDEFINED_SYMBOLS_LIST(V) \
V(EqualOperator, "==") \
V(GreaterEqualOperator, ">=") \
V(LessEqualOperator, "<=") \
V(LeftShiftOperator, "<<") \
V(RightShiftOperator, ">>") \
V(TruncDivOperator, "~/") \
V(UnaryMinus, "unary-") \
V(Identical, "identical") \
V(Length, "length") \
V(_setLength, "_setLength") \
V(IndexToken, "[]") \
V(AssignIndexToken, "[]=") \
V(TopLevel, "::") \
V(DefaultLabel, ":L") \
V(Other, "other") \
V(Call, "call") \
V(Current, "current") \
V(MoveNext, "moveNext") \
V(IsYieldEach, "isYieldEach") \
V(Value, "value") \
V(_EnumHelper, "_EnumHelper") \
V(_SyncIterable, "_SyncIterable") \
V(_SyncIterableConstructor, "_SyncIterable.") \
V(_SyncIterator, "_SyncIterator") \
V(IteratorParameter, ":iterator") \
V(_AsyncStarStreamController, "_AsyncStarStreamController") \
V(_AsyncStarStreamControllerConstructor, "_AsyncStarStreamController.") \
V(Controller, ":controller") \
V(Stream, "stream") \
V(isPaused, "isPaused") \
V(AddError, "addError") \
V(AddStream, "addStream") \
V(Cancel, "cancel") \
V(Close, "close") \
V(Values, "values") \
V(_EnumNames, "_enum_names") \
V(ExprTemp, ":expr_temp") \
V(AnonymousClosure, "<anonymous closure>") \
V(ImplicitClosure, "<implicit closure>") \
V(ClosureParameter, ":closure") \
V(PhaseParameter, ":phase") \
V(TypeArgumentsParameter, ":type_arguments") \
V(AssertionError, "_AssertionError") \
V(CastError, "_CastError") \
V(TypeError, "_TypeError") \
V(FallThroughError, "FallThroughError") \
V(AbstractClassInstantiationError, "AbstractClassInstantiationError") \
V(NoSuchMethodError, "NoSuchMethodError") \
V(CyclicInitializationError, "CyclicInitializationError") \
V(ThrowNew, "_throwNew") \
V(ThrowNewIfNotLoaded, "_throwNewIfNotLoaded") \
V(Symbol, "Symbol") \
V(SymbolCtor, "Symbol.") \
V(List, "List") \
V(ListLiteralFactory, "List._fromLiteral") \
V(ListFactory, "List.") \
V(Map, "Map") \
V(MapLiteralFactory, "Map._fromLiteral") \
V(ImmutableMap, "ImmutableMap") \
V(ImmutableMapConstructor, "ImmutableMap._create") \
V(StringBase, "_StringBase") \
V(Interpolate, "_interpolate") \
V(InterpolateSingle, "_interpolateSingle") \
V(Iterator, "iterator") \
V(NoSuchMethod, "noSuchMethod") \
V(CurrentContextVar, ":current_context_var") \
V(SavedTryContextVar, ":saved_try_context_var") \
V(ExceptionParameter, ":exception") \
V(StackTraceParameter, ":stack_trace") \
V(ExceptionVar, ":exception_var") \
V(StackTraceVar, ":stack_trace_var") \
V(SavedExceptionVar, ":saved_exception_var") \
V(SavedStackTraceVar, ":saved_stack_trace_var") \
V(ListLiteralElement, "list literal element") \
V(ForInIter, ":for-in-iter") \
V(LoadLibrary, "loadLibrary") \
V(_LibraryPrefix, "_LibraryPrefix") \
V(On, "on") \
V(Of, "of") \
V(Deferred, "deferred") \
V(Show, "show") \
V(Hide, "hide") \
V(Async, "async") \
V(Sync, "sync") \
V(YieldKw, "yield") \
V(AsyncCompleter, ":async_completer") \
V(AsyncOperation, ":async_op") \
V(AsyncThenCallback, ":async_op_then") \
V(AsyncCatchErrorCallback, ":async_op_catch_error") \
V(AsyncOperationParam, ":async_result") \
V(AsyncOperationErrorParam, ":async_error_param") \
V(AsyncOperationStackTraceParam, ":async_stack_trace_param") \
V(AsyncSavedTryCtxVarPrefix, ":async_saved_try_ctx_var_") \
V(AsyncCatchHelper, "_asyncCatchHelper") \
V(AsyncThenWrapperHelper, "_asyncThenWrapperHelper") \
V(AsyncErrorWrapperHelper, "_asyncErrorWrapperHelper") \
V(AsyncAwaitHelper, "_awaitHelper") \
V(Await, "await") \
V(AwaitTempVarPrefix, ":await_temp_var_") \
V(AwaitContextVar, ":await_ctx_var") \
V(AwaitJumpVar, ":await_jump_var") \
V(Future, "Future") \
V(FutureMicrotask, "Future.microtask") \
V(FutureValue, "Future.value") \
V(FutureThen, "then") \
V(FutureCatchError, "catchError") \
V(Completer, "Completer") \
V(CompleterComplete, "complete") \
V(CompleterCompleteError, "completeError") \
V(CompleterSyncConstructor, "Completer.sync") \
V(CompleterFuture, "future") \
V(StreamIterator, "StreamIterator") \
V(StreamIteratorConstructor, "StreamIterator.") \
V(Native, "native") \
V(Class, "Class") \
V(Null, "Null") \
V(Dynamic, "dynamic") \
V(UnresolvedClass, "UnresolvedClass") \
V(Type, "_Type") \
V(TypeRef, "_TypeRef") \
V(TypeParameter, "_TypeParameter") \
V(BoundedType, "_BoundedType") \
V(MixinAppType, "_MixinAppType") \
V(TypeArguments, "TypeArguments") \
V(Patch, "patch") \
V(PatchClass, "PatchClass") \
V(Function, "Function") \
V(FunctionImpl, "_FunctionImpl") \
V(FunctionResult, "function result") \
V(FactoryResult, "factory result") \
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(ObjectPool, "ObjectPool") \
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(MegamorphicCache, "MegamorphicCache") \
V(SubtypeTestCache, "SubtypeTestCache") \
V(Error, "Error") \
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(_List, "_List") \
V(_ListFactory, "_List.") \
V(_GrowableList, "_GrowableList") \
V(_GrowableListFactory, "_GrowableList.") \
V(_GrowableListWithData, "_GrowableList.withData") \
V(_ImmutableList, "_ImmutableList") \
V(_LinkedHashMap, "_InternalLinkedHashMap") \
V(_String, "String") \
V(OneByteString, "_OneByteString") \
V(TwoByteString, "_TwoByteString") \
V(ExternalOneByteString, "_ExternalOneByteString") \
V(ExternalTwoByteString, "_ExternalTwoByteString") \
V(_CapabilityImpl, "_CapabilityImpl") \
V(_RawReceivePortImpl, "_RawReceivePortImpl") \
V(_SendPortImpl, "_SendPortImpl") \
V(_StackTrace, "_StackTrace") \
V(JSSyntaxRegExp, "_JSSyntaxRegExp") \
V(RegExp, "RegExp") \
V(Irregexp, ":irregexp") \
V(Object, "Object") \
V(Int, "int") \
V(Double, "double") \
V(_Float32x4, "_Float32x4") \
V(_Float64x2, "_Float64x2") \
V(_Int32x4, "_Int32x4") \
V(Float32x4, "Float32x4") \
V(Float64x2, "Float64x2") \
V(Int32x4, "Int32x4") \
V(Int8List, "Int8List") \
V(Uint8List, "Uint8List") \
V(Uint8ClampedList, "Uint8ClampedList") \
V(Int16List, "Int16List") \
V(Uint16List, "Uint16List") \
V(Int32List, "Int32List") \
V(Uint32List, "Uint32List") \
V(Int64List, "Int64List") \
V(Uint64List, "Uint64List") \
V(Float32x4List, "Float32x4List") \
V(Int32x4List, "Int32x4List") \
V(Float64x2List, "Float64x2List") \
V(Float32List, "Float32List") \
V(Float64List, "Float64List") \
V(_Int8Array, "_Int8Array") \
V(_Int8ArrayFactory, "_Int8Array.") \
V(_Uint8Array, "_Uint8Array") \
V(_Uint8ArrayFactory, "_Uint8Array.") \
V(_Uint8ClampedArray, "_Uint8ClampedArray") \
V(_Uint8ClampedArrayFactory, "_Uint8ClampedArray.") \
V(_Int16Array, "_Int16Array") \
V(_Int16ArrayFactory, "_Int16Array.") \
V(_Uint16Array, "_Uint16Array") \
V(_Uint16ArrayFactory, "_Uint16Array.") \
V(_Int32Array, "_Int32Array") \
V(_Int32ArrayFactory, "_Int32Array.") \
V(_Uint32Array, "_Uint32Array") \
V(_Uint32ArrayFactory, "_Uint32Array.") \
V(_Int64Array, "_Int64Array") \
V(_Int64ArrayFactory, "_Int64Array.") \
V(_Uint64Array, "_Uint64Array") \
V(_Uint64ArrayFactory, "_Uint64Array.") \
V(_Float32x4Array, "_Float32x4Array") \
V(_Float32x4ArrayFactory, "_Float32x4Array.") \
V(_Int32x4Array, "_Int32x4Array") \
V(_Int32x4ArrayFactory, "_Int32x4Array.") \
V(_Float64x2Array, "_Float64x2Array") \
V(_Float64x2ArrayFactory, "_Float64x2Array.") \
V(_Float32Array, "_Float32Array") \
V(_Float32ArrayFactory, "_Float32Array.") \
V(_Float64Array, "_Float64Array") \
V(_Float64ArrayFactory, "_Float64Array.") \
V(_Int8ArrayView, "_Int8ArrayView") \
V(_Uint8ArrayView, "_Uint8ArrayView") \
V(_Uint8ClampedArrayView, "_Uint8ClampedArrayView") \
V(_Int16ArrayView, "_Int16ArrayView") \
V(_Uint16ArrayView, "_Uint16ArrayView") \
V(_Int32ArrayView, "_Int32ArrayView") \
V(_Uint32ArrayView, "_Uint32ArrayView") \
V(_Int64ArrayView, "_Int64ArrayView") \
V(_Uint64ArrayView, "_Uint64ArrayView") \
V(_Float32ArrayView, "_Float32ArrayView") \
V(_Float64ArrayView, "_Float64ArrayView") \
V(_Float32x4ArrayView, "_Float32x4ArrayView") \
V(_Int32x4ArrayView, "_Int32x4ArrayView") \
V(_Float64x2ArrayView, "_Float64x2ArrayView") \
V(_ExternalInt8Array, "_ExternalInt8Array") \
V(_ExternalUint8Array, "_ExternalUint8Array") \
V(_ExternalUint8ClampedArray, "_ExternalUint8ClampedArray") \
V(_ExternalInt16Array, "_ExternalInt16Array") \
V(_ExternalUint16Array, "_ExternalUint16Array") \
V(_ExternalInt32Array, "_ExternalInt32Array") \
V(_ExternalUint32Array, "_ExternalUint32Array") \
V(_ExternalInt64Array, "_ExternalInt64Array") \
V(_ExternalUint64Array, "_ExternalUint64Array") \
V(_ExternalFloat32x4Array, "_ExternalFloat32x4Array") \
V(_ExternalInt32x4Array, "_ExternalInt32x4Array") \
V(_ExternalFloat32Array, "_ExternalFloat32Array") \
V(_ExternalFloat64Array, "_ExternalFloat64Array") \
V(_ExternalFloat64x2Array, "_ExternalFloat64x2Array") \
V(ByteData, "ByteData") \
V(ByteDataDot, "ByteData.") \
V(ByteDataDot_view, "ByteData._view") \
V(_ByteDataView, "_ByteDataView") \
V(_ByteBuffer, "_ByteBuffer") \
V(_ByteBufferDot_New, "_ByteBuffer._New") \
V(_WeakProperty, "_WeakProperty") \
V(_MirrorReference, "_MirrorReference") \
V(InvocationMirror, "_InvocationMirror") \
V(AllocateInvocationMirror, "_allocateInvocationMirror") \
V(toString, "toString") \
V(_lookupHandler, "_lookupHandler") \
V(_handleMessage, "_handleMessage") \
V(DotCreate, "._create") \
V(DotWithType, "._withType") \
V(_get, "_get") \
V(RangeError, "RangeError") \
V(DotRange, ".range") \
V(ArgumentError, "ArgumentError") \
V(DotValue, ".value") \
V(FormatException, "FormatException") \
V(UnsupportedError, "UnsupportedError") \
V(StackOverflowError, "StackOverflowError") \
V(OutOfMemoryError, "OutOfMemoryError") \
V(NullThrownError, "NullThrownError") \
V(IsolateSpawnException, "IsolateSpawnException") \
V(IsolateUnhandledException, "_IsolateUnhandledException") \
V(JavascriptIntegerOverflowError, "_JavascriptIntegerOverflowError") \
V(JavascriptCompatibilityError, "_JavascriptCompatibilityError") \
V(BooleanExpression, "boolean expression") \
V(Malformed, "malformed") \
V(Malbounded, "malbounded") \
V(MegamorphicMiss, "megamorphic_miss") \
V(CommaSpace, ", ") \
V(ColonSpace, ": ") \
V(RParenArrow, ") => ") \
V(SpaceExtendsSpace, " extends ") \
V(SwitchExpr, ":switch_expr") \
V(TwoNewlines, "\n\n") \
V(TwoSpaces, " ") \
V(_instanceOf, "_instanceOf") \
V(_instanceOfSmi, "_instanceOfSmi") \
V(_instanceOfNum, "_instanceOfNum") \
V(_instanceOfInt, "_instanceOfInt") \
V(_instanceOfDouble, "_instanceOfDouble") \
V(_instanceOfString, "_instanceOfString") \
V(_as, "_as") \
V(GetterPrefix, "get:") \
V(ClosurizePrefix, "get:#") \
V(SetterPrefix, "set:") \
V(InitPrefix, "init:") \
V(_New, "_new") \
V(Index, "index") \
V(DartScheme, "dart:") \
V(DartSchemePrivate, "dart:_") \
V(DartNativeWrappers, "dart:nativewrappers") \
V(DartNativeWrappersLibName, "dart.nativewrappers") \
V(DartCore, "dart:core") \
V(DartCollection, "dart:collection") \
V(DartDeveloper, "dart:developer") \
V(DartInternal, "dart:_internal") \
V(DartIsolate, "dart:isolate") \
V(DartMirrors, "dart:mirrors") \
V(DartTypedData, "dart:typed_data") \
V(DartVMService, "dart:_vmservice") \
V(DartIOLibName, "dart.io") \
V(EvalSourceUri, "evaluate:source") \
V(_Random, "_Random") \
V(_state, "_state") \
V(_A, "_A") \
V(_stackTrace, "_stackTrace") \
V(_SpecialTypeMirror, "_SpecialTypeMirror") \
V(_LocalClassMirror, "_LocalClassMirror") \
V(_LocalFunctionTypeMirror, "_LocalFunctionTypeMirror") \
V(_LocalLibraryMirror, "_LocalLibraryMirror") \
V(_LocalLibraryDependencyMirror, "_LocalLibraryDependencyMirror") \
V(_LocalCombinatorMirror, "_LocalCombinatorMirror") \
V(_LocalMethodMirror, "_LocalMethodMirror") \
V(_LocalVariableMirror, "_LocalVariableMirror") \
V(_LocalParameterMirror, "_LocalParameterMirror") \
V(_LocalIsolateMirror, "_LocalIsolateMirror") \
V(_LocalMirrorSystem, "_LocalMirrorSystem") \
V(_LocalTypedefMirror, "_LocalTypedefMirror") \
V(_LocalTypeVariableMirror, "_LocalTypeVariableMirror") \
V(_SourceLocation, "_SourceLocation") \
V(hashCode, "get:hashCode") \
V(_leftShiftWithMask32, "_leftShiftWithMask32") \
V(OptimizedOut, "<optimized out>") \
V(NotInitialized, "<not initialized>") \
V(AllocationStubFor, "[Stub] Allocate ") \
V(TempParam, ":temp_param") \
V(_UserTag, "_UserTag") \
V(Default, "Default") \
V(StubPrefix, "[Stub] ") \
V(ClassID, "ClassID") \
V(DartIsVM, "dart.isVM") \
V(stack, ":stack") \
V(stack_pointer, ":stack_pointer") \
V(current_character, ":current_character") \
V(current_position, ":current_position") \
V(string_param_length, ":string_param_length") \
V(capture_length, ":capture_length") \
V(word_character_map, ":word_character_map") \
V(match_start_index, ":match_start_index") \
V(capture_start_index, ":capture_start_index") \
V(match_end_index, ":match_end_index") \
V(char_in_capture, ":char_in_capture") \
V(char_in_match, ":char_in_match") \
V(index_temp, ":index_temp") \
V(result, ":result") \
V(position_registers, ":position_registers") \
V(string_param, ":string_param") \
V(start_index_param, ":start_index_param") \
V(clear, "clear") \
V(_wordCharacterMap, "_wordCharacterMap") \
V(print, "print") \
V(last, "last") \
V(removeLast, "removeLast") \
V(add, "add") \
V(ConstructorClosurePrefix, "new#") \
V(_runExtension, "_runExtension") \
V(_runPendingImmediateCallback, "_runPendingImmediateCallback") \
// 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:
enum { kMaxOneCharCodeSymbol = 0xFF };
// List of strings that are pre created in the vm isolate.
enum SymbolId {
kIllegal = 0,
#define DEFINE_SYMBOL_INDEX(symbol, literal) \
k##symbol##Id,
PREDEFINED_SYMBOLS_LIST(DEFINE_SYMBOL_INDEX)
#undef DEFINE_SYMBOL_INDEX
kKwTableStart, // First keyword at kKwTableStart + 1.
#define DEFINE_KEYWORD_SYMBOL_INDEX(t, s, p, a) \
t##Id,
DART_KEYWORD_LIST(DEFINE_KEYWORD_SYMBOL_INDEX)
#undef DEFINE_KEYWORD_SYMBOL_INDEX
kNullCharId, // One char code symbol starts here and takes up 256 entries.
kMaxPredefinedId = kNullCharId + kMaxOneCharCodeSymbol + 1,
};
// Number of one character symbols being predefined in the predefined_ array.
static const int kNumberOfOneCharCodeSymbols =
(kMaxPredefinedId - kNullCharId);
// Offset of Null character which is the predefined character symbol.
static const int kNullCharCodeSymbolOffset = 0;
static const String& Symbol(intptr_t index) {
ASSERT((index > kIllegal) && (index < kMaxPredefinedId));
return *(symbol_handles_[index]);
}
// Access methods for one byte character symbols stored in the vm isolate.
static const String& Dot() {
return *(symbol_handles_[kNullCharId + '.']);
}
static const String& Equals() {
return *(symbol_handles_[kNullCharId + '=']);
}
static const String& Plus() {
return *(symbol_handles_[kNullCharId + '+']);
}
static const String& Minus() {
return *(symbol_handles_[kNullCharId + '-']);
}
static const String& BitOr() {
return *(symbol_handles_[kNullCharId + '|']);
}
static const String& BitAnd() {
return *(symbol_handles_[kNullCharId + '&']);
}
static const String& LAngleBracket() {
return *(symbol_handles_[kNullCharId + '<']);
}
static const String& RAngleBracket() {
return *(symbol_handles_[kNullCharId + '>']);
}
static const String& LParen() {
return *(symbol_handles_[kNullCharId + '(']);
}
static const String& RParen() {
return *(symbol_handles_[kNullCharId + ')']);
}
static const String& LBracket() {
return *(symbol_handles_[kNullCharId + '[']);
}
static const String& RBracket() {
return *(symbol_handles_[kNullCharId + ']']);
}
static const String& LBrace() {
return *(symbol_handles_[kNullCharId + '{']);
}
static const String& RBrace() {
return *(symbol_handles_[kNullCharId + '}']);
}
static const String& Blank() {
return *(symbol_handles_[kNullCharId + ' ']);
}
static const String& Dollar() {
return *(symbol_handles_[kNullCharId + '$']);
}
static const String& NewLine() {
return *(symbol_handles_[kNullCharId + '\n']);
}
static const String& DoubleQuotes() {
return *(symbol_handles_[kNullCharId + '"']);
}
static const String& LowercaseR() {
return *(symbol_handles_[kNullCharId + 'r']);
}
static const String& Dash() {
return *(symbol_handles_[kNullCharId + '-']);
}
static const String& Ampersand() {
return *(symbol_handles_[kNullCharId + '&']);
}
static const String& Backtick() {
return *(symbol_handles_[kNullCharId + '`']);
}
static const String& Slash() {
return *(symbol_handles_[kNullCharId + '/']);
}
static const String& At() {
return *(symbol_handles_[kNullCharId + '@']);
}
static const String& HashMark() {
return *(symbol_handles_[kNullCharId + '#']);
}
static const String& Semicolon() {
return *(symbol_handles_[kNullCharId + ';']);
}
static const String& Star() {
return *(symbol_handles_[kNullCharId + '*']);
}
static const String& Percent() {
return *(symbol_handles_[kNullCharId + '%']);
}
static const String& Caret() {
return *(symbol_handles_[kNullCharId + '^']);
}
static const String& Tilde() {
return *(symbol_handles_[kNullCharId + '~']);
}
static const String& Empty() { return *(symbol_handles_[kKwTableStart]); }
static const String& False() { return *(symbol_handles_[kFALSEId]); }
static const String& Library() { return *(symbol_handles_[kLIBRARYId]); }
static const String& Super() { return *(symbol_handles_[kSUPERId]); }
static const String& This() { return *(symbol_handles_[kTHISId]); }
static const String& True() { return *(symbol_handles_[kTRUEId]); }
static const String& Void() { return *(symbol_handles_[kVOIDId]); }
// Access methods for symbol handles stored in the vm isolate for predefined
// symbols.
#define DEFINE_SYMBOL_HANDLE_ACCESSOR(symbol, literal) \
static const String& symbol() { return *(symbol_handles_[k##symbol##Id]); }
PREDEFINED_SYMBOLS_LIST(DEFINE_SYMBOL_HANDLE_ACCESSOR)
#undef DEFINE_SYMBOL_HANDLE_ACCESSOR
// Access methods for symbol handles stored in the vm isolate for keywords.
#define DEFINE_SYMBOL_HANDLE_ACCESSOR(t, s, p, a) \
static const String& t() { return *(symbol_handles_[t##Id]); }
DART_KEYWORD_LIST(DEFINE_SYMBOL_HANDLE_ACCESSOR)
#undef DEFINE_SYMBOL_HANDLE_ACCESSOR
// Get symbol for scanner keyword.
static const String& Keyword(Token::Kind keyword);
// Initialize frequently used symbols in the vm isolate.
static void InitOnce(Isolate* isolate);
static void InitOnceFromSnapshot(Isolate* isolate);
// Add all the symbols that were cached in the VM isolate to this isolate,
// we do this when an Isolate is not created from the snapshot so that
// we get a unified symbol table that can be be dumped into the VM isolate
// snapshot.
static void AddPredefinedSymbolsToIsolate();
// Initialize and setup a symbol table for the isolate.
static void SetupSymbolTable(Isolate* isolate);
// Creates a Symbol given a C string that is assumed to contain
// UTF-8 encoded characters and '\0' is considered a termination character.
// TODO(7123) - Rename this to FromCString(....).
static RawString* New(const char* cstr) {
return New(cstr, strlen(cstr));
}
static RawString* New(const char* cstr, intptr_t length);
// Creates a new Symbol from an array of UTF-8 encoded characters.
static RawString* FromUTF8(const uint8_t* utf8_array, intptr_t len);
// Creates a new Symbol from an array of Latin-1 encoded characters.
static RawString* FromLatin1(const uint8_t* latin1_array, intptr_t len);
// Creates a new Symbol from an array of UTF-16 encoded characters.
static RawString* FromUTF16(const uint16_t* utf16_array, intptr_t len);
// Creates a new Symbol from an array of UTF-32 encoded characters.
static RawString* FromUTF32(const int32_t* utf32_array, intptr_t len);
static RawString* New(const String& str);
static RawString* New(const String& str,
intptr_t begin_index,
intptr_t length);
static RawString* NewFormatted(const char* format, ...)
PRINTF_ATTRIBUTE(1, 2);
static RawString* NewFormattedV(const char* format, va_list args);
static RawString* FromConcat(const String& str1, const String& str2);
static RawString* FromConcatAll(
const GrowableHandlePtrArray<const String>& strs);
// Returns char* of predefined symbol.
static const char* Name(SymbolId symbol);
static RawString* FromCharCode(int32_t char_code);
static RawString** PredefinedAddress() {
return reinterpret_cast<RawString**>(&predefined_);
}
static void DumpStats();
// Returns Symbol::Null if no symbol is found.
template<typename StringType>
static RawString* Lookup(const StringType& str);
// Returns Symbol::Null if no symbol is found.
static RawString* LookupFromConcat(const String& str1, const String& str2);
private:
enum {
kInitialVMIsolateSymtabSize = 1024,
kInitialSymtabSize = 2048
};
static void GetStats(Isolate* isolate,
intptr_t* size,
intptr_t* capacity);
template<typename StringType>
static RawString* NewSymbol(const StringType& str);
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 + kMaxPredefinedId));
}
// List of Latin1 characters stored in the vm isolate as symbols
// in order to make Symbols::FromCharCode fast. This structure is
// used in generated dart code for direct access to these objects.
static RawString* predefined_[kNumberOfOneCharCodeSymbols];
// List of handles for predefined symbols.
static String* symbol_handles_[kMaxPredefinedId];
friend class Dart;
friend class String;
friend class SnapshotReader;
friend class SnapshotWriter;
friend class ApiMessageReader;
DISALLOW_COPY_AND_ASSIGN(Symbols);
};
} // namespace dart
#endif // VM_SYMBOLS_H_