|  | // 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 RUNTIME_VM_SYMBOLS_H_ | 
|  | #define RUNTIME_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(UnsafeCast, "unsafeCast")                                                  \ | 
|  | V(Length, "length")                                                          \ | 
|  | V(_setLength, "_setLength")                                                  \ | 
|  | V(IndexToken, "[]")                                                          \ | 
|  | V(AssignIndexToken, "[]=")                                                   \ | 
|  | V(TopLevel, "::")                                                            \ | 
|  | V(DefaultLabel, ":L")                                                        \ | 
|  | V(Other, "other")                                                            \ | 
|  | V(Call, "call")                                                              \ | 
|  | V(GetCall, "get:call")                                                       \ | 
|  | V(Current, "current")                                                        \ | 
|  | V(_current, "_current")                                                      \ | 
|  | V(MoveNext, "moveNext")                                                      \ | 
|  | V(_yieldEachIterable, "_yieldEachIterable")                                  \ | 
|  | 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(ColonController, ":controller")                                            \ | 
|  | V(ControllerStream, ":controller_stream")                                    \ | 
|  | V(Stream, "stream")                                                          \ | 
|  | V(_StreamImpl, "_StreamImpl")                                                \ | 
|  | V(isPaused, "isPaused")                                                      \ | 
|  | V(AddError, "addError")                                                      \ | 
|  | V(AddStream, "addStream")                                                    \ | 
|  | V(Cancel, "cancel")                                                          \ | 
|  | V(Close, "close")                                                            \ | 
|  | V(Values, "values")                                                          \ | 
|  | V(_EnumNames, "_enum_names")                                                 \ | 
|  | V(_DeletedEnumSentinel, "_deleted_enum_sentinel")                            \ | 
|  | V(_DeletedEnumPrefix, "Deleted enum value from ")                            \ | 
|  | V(ExprTemp, ":expr_temp")                                                    \ | 
|  | V(EntryPointsTemp, ":entry_points_temp")                                     \ | 
|  | V(FinallyRetVal, ":finally_ret_val")                                         \ | 
|  | V(AnonymousClosure, "<anonymous closure>")                                   \ | 
|  | V(AnonymousSignature, "<anonymous signature>")                               \ | 
|  | V(ImplicitClosure, "<implicit closure>")                                     \ | 
|  | V(ClosureParameter, ":closure")                                              \ | 
|  | V(TypeArgumentsParameter, ":type_arguments")                                 \ | 
|  | V(FunctionTypeArgumentsVar, ":function_type_arguments_var")                  \ | 
|  | V(AssertionError, "_AssertionError")                                         \ | 
|  | V(CastError, "_CastError")                                                   \ | 
|  | V(TypeError, "_TypeError")                                                   \ | 
|  | V(FallThroughError, "FallThroughError")                                      \ | 
|  | V(AbstractClassInstantiationError, "AbstractClassInstantiationError")        \ | 
|  | V(NoSuchMethodError, "NoSuchMethodError")                                    \ | 
|  | V(IntegerDivisionByZeroException, "IntegerDivisionByZeroException")          \ | 
|  | V(CyclicInitializationError, "CyclicInitializationError")                    \ | 
|  | V(_CompileTimeError, "_CompileTimeError")                                    \ | 
|  | V(ThrowNew, "_throwNew")                                                     \ | 
|  | V(ThrowNewInvocation, "_throwNewInvocation")                                 \ | 
|  | V(ThrowNewIfNotLoaded, "_throwNewIfNotLoaded")                               \ | 
|  | V(EvaluateAssertion, "_evaluateAssertion")                                   \ | 
|  | 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(ArgDescVar, ":arg_desc")                                                   \ | 
|  | V(CurrentContextVar, ":current_context_var")                                 \ | 
|  | V(SavedTryContextVar, ":saved_try_context_var")                              \ | 
|  | V(TryFinallyReturnValue, ":try_finally_return_value")                        \ | 
|  | 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(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(AsyncStackTraceVar, ":async_stack_trace")                                  \ | 
|  | V(ClearAsyncThreadStackTrace, "_clearAsyncThreadStackTrace")                 \ | 
|  | V(SetAsyncThreadStackTrace, "_setAsyncThreadStackTrace")                     \ | 
|  | V(AsyncCatchHelper, "_asyncCatchHelper")                                     \ | 
|  | V(_CompleteOnAsyncReturn, "_completeOnAsyncReturn")                          \ | 
|  | V(AsyncThenWrapperHelper, "_asyncThenWrapperHelper")                         \ | 
|  | V(AsyncErrorWrapperHelper, "_asyncErrorWrapperHelper")                       \ | 
|  | V(AsyncStarMoveNextHelper, "_asyncStarMoveNextHelper")                       \ | 
|  | V(AsyncStackTraceHelper, "_asyncStackTraceHelper")                           \ | 
|  | V(AsyncAwaitHelper, "_awaitHelper")                                          \ | 
|  | V(Await, "await")                                                            \ | 
|  | V(_Awaiter, "_awaiter")                                                      \ | 
|  | V(AwaitTempVarPrefix, ":await_temp_var_")                                    \ | 
|  | V(AwaitContextVar, ":await_ctx_var")                                         \ | 
|  | V(AwaitJumpVar, ":await_jump_var")                                           \ | 
|  | V(FutureImpl, "_Future")                                                     \ | 
|  | V(Future, "Future")                                                          \ | 
|  | V(FutureOr, "FutureOr")                                                      \ | 
|  | 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(_AsyncAwaitCompleter, "_AsyncAwaitCompleter")                              \ | 
|  | V(_AsyncAwaitCompleterConstructor, "_AsyncAwaitCompleter.")                  \ | 
|  | V(_AsyncAwaitCompleterStart, "_AsyncAwaitCompleter.start")                   \ | 
|  | V(_AsyncAwaitStart, "start")                                                 \ | 
|  | V(CompleterFuture, "future")                                                 \ | 
|  | V(CompleterGetFuture, "get:future")                                          \ | 
|  | V(StreamIterator, "StreamIterator")                                          \ | 
|  | V(StreamIteratorConstructor, "StreamIterator.")                              \ | 
|  | V(Native, "native")                                                          \ | 
|  | V(Class, "Class")                                                            \ | 
|  | V(Null, "Null")                                                              \ | 
|  | V(null, "null")                                                              \ | 
|  | V(Dynamic, "dynamic")                                                        \ | 
|  | V(Type, "Type")                                                              \ | 
|  | V(_Type, "_Type")                                                            \ | 
|  | V(_TypeRef, "_TypeRef")                                                      \ | 
|  | V(_TypeParameter, "_TypeParameter")                                          \ | 
|  | V(_BoundedType, "_BoundedType")                                              \ | 
|  | V(_MixinAppType, "_MixinAppType")                                            \ | 
|  | V(TypeArguments, "TypeArguments")                                            \ | 
|  | V(Patch, "patch")                                                            \ | 
|  | V(Pragma, "pragma")                                                          \ | 
|  | V(PatchClass, "PatchClass")                                                  \ | 
|  | V(Function, "Function")                                                      \ | 
|  | V(_Closure, "_Closure")                                                      \ | 
|  | V(_ClosureCall, "_Closure.call")                                             \ | 
|  | V(FunctionResult, "function result")                                         \ | 
|  | V(FactoryResult, "factory result")                                           \ | 
|  | V(ClosureData, "ClosureData")                                                \ | 
|  | V(SignatureData, "SignatureData")                                            \ | 
|  | V(RedirectionData, "RedirectionData")                                        \ | 
|  | V(Field, "Field")                                                            \ | 
|  | V(Script, "Script")                                                          \ | 
|  | V(LibraryClass, "Library")                                                   \ | 
|  | V(LibraryPrefix, "LibraryPrefix")                                            \ | 
|  | V(Namespace, "Namespace")                                                    \ | 
|  | V(KernelProgramInfo, "KernelProgramInfo")                                    \ | 
|  | V(Code, "Code")                                                              \ | 
|  | V(Bytecode, "Bytecode")                                                      \ | 
|  | V(Instructions, "Instructions")                                              \ | 
|  | V(ObjectPool, "ObjectPool")                                                  \ | 
|  | V(PcDescriptors, "PcDescriptors")                                            \ | 
|  | V(CodeSourceMap, "CodeSourceMap")                                            \ | 
|  | V(StackMap, "StackMap")                                                      \ | 
|  | V(LocalVarDescriptors, "LocalVarDescriptors")                                \ | 
|  | V(ExceptionHandlers, "ExceptionHandlers")                                    \ | 
|  | V(DeoptInfo, "DeoptInfo")                                                    \ | 
|  | V(Context, "Context")                                                        \ | 
|  | V(ContextScope, "ContextScope")                                              \ | 
|  | V(SingleTargetCache, "SingleTargetCache")                                    \ | 
|  | V(UnlinkedCall, "UnlinkedCall")                                              \ | 
|  | 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(_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(_rehashObjects, "_rehashObjects")                                          \ | 
|  | 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(_RegExp, "_RegExp")                                                        \ | 
|  | V(RegExp, "RegExp")                                                          \ | 
|  | V(ColonMatcher, ":matcher")                                                  \ | 
|  | V(ColonStream, ":stream")                                                    \ | 
|  | 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(_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(_Int8ArrayFactory, "Int8List.")                                            \ | 
|  | V(_Uint8ArrayFactory, "Uint8List.")                                          \ | 
|  | V(_Uint8ClampedArrayFactory, "Uint8ClampedList.")                            \ | 
|  | V(_Int16ArrayFactory, "Int16List.")                                          \ | 
|  | V(_Uint16ArrayFactory, "Uint16List.")                                        \ | 
|  | V(_Int32ArrayFactory, "Int32List.")                                          \ | 
|  | V(_Uint32ArrayFactory, "Uint32List.")                                        \ | 
|  | V(_Int64ArrayFactory, "Int64List.")                                          \ | 
|  | V(_Uint64ArrayFactory, "Uint64List.")                                        \ | 
|  | V(_Float32x4ArrayFactory, "Float32x4List.")                                  \ | 
|  | V(_Int32x4ArrayFactory, "Int32x4List.")                                      \ | 
|  | V(_Float64x2ArrayFactory, "Float64x2List.")                                  \ | 
|  | V(_Float32ArrayFactory, "Float32List.")                                      \ | 
|  | V(_Float64ArrayFactory, "Float64List.")                                      \ | 
|  | 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(FreeListElement, "FreeListElement")                                        \ | 
|  | V(ForwardingCorpse, "ForwardingCorpse")                                      \ | 
|  | V(InvocationMirror, "_InvocationMirror")                                     \ | 
|  | V(AllocateInvocationMirror, "_allocateInvocationMirror")                     \ | 
|  | V(AllocateInvocationMirrorForClosure, "_allocateInvocationMirrorForClosure") \ | 
|  | 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(BooleanExpression, "boolean expression")                                   \ | 
|  | V(MegamorphicMiss, "megamorphic_miss")                                       \ | 
|  | V(CommaSpace, ", ")                                                          \ | 
|  | V(RParenArrow, ") => ")                                                      \ | 
|  | V(SpaceExtendsSpace, " extends ")                                            \ | 
|  | V(SpaceWhereNewLine, " where\n")                                             \ | 
|  | V(SpaceIsFromSpace, " is from ")                                             \ | 
|  | V(InTypeCast, " in type cast")                                               \ | 
|  | V(TypeQuote, "type '")                                                       \ | 
|  | V(QuoteIsNotASubtypeOf, "' is not a subtype of ")                            \ | 
|  | V(SpaceOfSpace, " of ")                                                      \ | 
|  | V(SwitchExpr, ":switch_expr")                                                \ | 
|  | V(TwoNewlines, "\n\n")                                                       \ | 
|  | V(TwoSpaces, "  ")                                                           \ | 
|  | V(_instanceOf, "_instanceOf")                                                \ | 
|  | V(_simpleInstanceOf, "_simpleInstanceOf")                                    \ | 
|  | V(_simpleInstanceOfTrue, "_simpleInstanceOfTrue")                            \ | 
|  | V(_simpleInstanceOfFalse, "_simpleInstanceOfFalse")                          \ | 
|  | V(GetterPrefix, "get:")                                                      \ | 
|  | V(SetterPrefix, "set:")                                                      \ | 
|  | V(InitPrefix, "init:")                                                       \ | 
|  | V(DynamicPrefix, "dyn:")                                                     \ | 
|  | V(Index, "index")                                                            \ | 
|  | V(DartScheme, "dart:")                                                       \ | 
|  | V(DartSchemePrivate, "dart:_")                                               \ | 
|  | V(DartInternalPackage, "package:dart_internal/")                             \ | 
|  | V(DartNativeWrappers, "dart:nativewrappers")                                 \ | 
|  | V(DartNativeWrappersLibName, "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(DartVMProduct, "dart.vm.product")                                          \ | 
|  | V(EvalSourceUri, "evaluate:source")                                          \ | 
|  | V(ExternalName, "ExternalName")                                              \ | 
|  | V(_Random, "_Random")                                                        \ | 
|  | V(_state, "_state")                                                          \ | 
|  | 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(identityHashCode, "identityHashCode")                                      \ | 
|  | V(OptimizedOut, "<optimized out>")                                           \ | 
|  | V(NotInitialized, "<not initialized>")                                       \ | 
|  | V(NotNamed, "<not named>")                                                   \ | 
|  | V(OriginalParam, ":original:")                                               \ | 
|  | V(TempParam, ":temp_param")                                                  \ | 
|  | V(_UserTag, "_UserTag")                                                      \ | 
|  | V(Default, "Default")                                                        \ | 
|  | V(ClassID, "ClassID")                                                        \ | 
|  | V(getID, "getID")                                                            \ | 
|  | 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(ConstructorStacktracePrefix, "new ")                                       \ | 
|  | V(_runExtension, "_runExtension")                                            \ | 
|  | V(_runPendingImmediateCallback, "_runPendingImmediateCallback")              \ | 
|  | V(_ensureScheduleImmediate, "_ensureScheduleImmediate")                      \ | 
|  | V(DartLibrary, "dart.library.")                                              \ | 
|  | V(DartLibraryMirrors, "dart.library.mirrors")                                \ | 
|  | V(_name, "_name")                                                            \ | 
|  | V(name, "name")                                                              \ | 
|  | V(options, "options")                                                        \ | 
|  | V(_classRangeCheck, "_classRangeCheck")                                      \ | 
|  | V(_classRangeCheckNegative, "_classRangeCheckNegative")                      \ | 
|  | V(GetRuntimeType, "get:runtimeType")                                         \ | 
|  | V(HaveSameRuntimeType, "_haveSameRuntimeType")                               \ | 
|  | V(PrependTypeArguments, "_prependTypeArguments")                             \ | 
|  | V(DartDeveloperCausalAsyncStacks, "dart.developer.causal_async_stacks")      \ | 
|  | V(_AsyncStarListenHelper, "_asyncStarListenHelper")                          \ | 
|  | V(GrowRegExpStack, "_growRegExpStack")                                       \ | 
|  | V(DebugProcedureName, ":Eval")                                               \ | 
|  | V(DebugClassName, "#DebugClass")                                             \ | 
|  | V(vm_entry_point, "vm:entry-point")                                          \ | 
|  | V(vm_non_nullable_result_type, "vm:non-nullable-result-type")                \ | 
|  | V(vm_exact_result_type, "vm:exact-result-type")                              \ | 
|  | V(Get, "get")                                                                \ | 
|  | V(Set, "set")                                                                \ | 
|  | V(vm_trace_entrypoints, "vm:testing.unsafe.trace-entrypoints-fn")            \ | 
|  | V(BoundsCheckForPartialInstantiation, "_boundsCheckForPartialInstantiation") | 
|  |  | 
|  | // 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 { | 
|  | // clang-format off | 
|  | kIllegal = 0, | 
|  |  | 
|  | #define DEFINE_SYMBOL_INDEX(symbol, literal) k##symbol##Id, | 
|  | PREDEFINED_SYMBOLS_LIST(DEFINE_SYMBOL_INDEX) | 
|  | #undef DEFINE_SYMBOL_INDEX | 
|  |  | 
|  | kTokenTableStart,  // First token at kTokenTableStart + 1. | 
|  |  | 
|  | #define DEFINE_TOKEN_SYMBOL_INDEX(t, s, p, a) t##Id, | 
|  | DART_TOKEN_LIST(DEFINE_TOKEN_SYMBOL_INDEX) DART_KEYWORD_LIST( | 
|  | DEFINE_TOKEN_SYMBOL_INDEX) | 
|  | #undef DEFINE_TOKEN_SYMBOL_INDEX | 
|  |  | 
|  | kNullCharId,  // One char code symbol starts here and takes up 256 entries. | 
|  | kMaxPredefinedId = kNullCharId + kMaxOneCharCodeSymbol + 1, | 
|  | // clang-format on | 
|  | }; | 
|  |  | 
|  | // 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& DoubleQuote() { | 
|  | return *(symbol_handles_[kNullCharId + '"']); | 
|  | } | 
|  | static const String& SingleQuote() { | 
|  | 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_[kTokenTableStart]); } | 
|  | 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_TOKEN_LIST(DEFINE_SYMBOL_HANDLE_ACCESSOR) | 
|  | DART_KEYWORD_LIST(DEFINE_SYMBOL_HANDLE_ACCESSOR) | 
|  | #undef DEFINE_SYMBOL_HANDLE_ACCESSOR | 
|  |  | 
|  | // Get symbol for scanner token. | 
|  | static const String& Token(Token::Kind token); | 
|  |  | 
|  | // Initialize frequently used symbols in the vm isolate. | 
|  | static void Init(Isolate* isolate); | 
|  | static void InitFromSnapshot(Isolate* isolate); | 
|  |  | 
|  | // Initialize and setup a symbol table for the isolate. | 
|  | static void SetupSymbolTable(Isolate* isolate); | 
|  |  | 
|  | static RawArray* UnifiedSymbolTable(); | 
|  |  | 
|  | // Treat the symbol table as weak and collect garbage. | 
|  | static void Compact(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(Thread* thread, const char* cstr) { | 
|  | return New(thread, cstr, strlen(cstr)); | 
|  | } | 
|  | static RawString* New(Thread* thread, const char* cstr, intptr_t length); | 
|  |  | 
|  | // Creates a new Symbol from an array of UTF-8 encoded characters. | 
|  | static RawString* FromUTF8(Thread* thread, | 
|  | const uint8_t* utf8_array, | 
|  | intptr_t len); | 
|  |  | 
|  | // Creates a new Symbol from an array of Latin-1 encoded characters. | 
|  | static RawString* FromLatin1(Thread* thread, | 
|  | const uint8_t* latin1_array, | 
|  | intptr_t len); | 
|  |  | 
|  | // Creates a new Symbol from an array of UTF-16 encoded characters. | 
|  | static RawString* FromUTF16(Thread* thread, | 
|  | const uint16_t* utf16_array, | 
|  | intptr_t len); | 
|  |  | 
|  | // Creates a new Symbol from an array of UTF-32 encoded characters. | 
|  | static RawString* FromUTF32(Thread* thread, | 
|  | const int32_t* utf32_array, | 
|  | intptr_t len); | 
|  |  | 
|  | static RawString* New(Thread* thread, const String& str); | 
|  | static RawString* New(Thread* thread, | 
|  | const String& str, | 
|  | intptr_t begin_index, | 
|  | intptr_t length); | 
|  |  | 
|  | static RawString* NewFormatted(Thread* thread, const char* format, ...) | 
|  | PRINTF_ATTRIBUTE(2, 3); | 
|  | static RawString* NewFormattedV(Thread* thread, | 
|  | const char* format, | 
|  | va_list args); | 
|  |  | 
|  | static RawString* FromConcat(Thread* thread, | 
|  | const String& str1, | 
|  | const String& str2); | 
|  |  | 
|  | static RawString* FromConcatAll( | 
|  | Thread* thread, | 
|  | const GrowableHandlePtrArray<const String>& strs); | 
|  |  | 
|  | static RawString* FromGet(Thread* thread, const String& str); | 
|  | static RawString* FromSet(Thread* thread, const String& str); | 
|  | static RawString* FromDot(Thread* thread, const String& str); | 
|  |  | 
|  | // Returns char* of predefined symbol. | 
|  | static const char* Name(SymbolId symbol); | 
|  |  | 
|  | static RawString* FromCharCode(Thread* thread, int32_t char_code); | 
|  |  | 
|  | static RawString** PredefinedAddress() { | 
|  | return reinterpret_cast<RawString**>(&predefined_); | 
|  | } | 
|  |  | 
|  | static void DumpStats(Isolate* isolate); | 
|  | static void DumpTable(Isolate* isolate); | 
|  |  | 
|  | // Returns Symbol::Null if no symbol is found. | 
|  | template <typename StringType> | 
|  | static RawString* Lookup(Thread* thread, const StringType& str); | 
|  |  | 
|  | // Returns Symbol::Null if no symbol is found. | 
|  | static RawString* LookupFromConcat(Thread* thread, | 
|  | const String& str1, | 
|  | const String& str2); | 
|  |  | 
|  | static RawString* LookupFromGet(Thread* thread, const String& str); | 
|  | static RawString* LookupFromSet(Thread* thread, const String& str); | 
|  | static RawString* LookupFromDot(Thread* thread, const String& str); | 
|  |  | 
|  | static void GetStats(Isolate* isolate, intptr_t* size, intptr_t* capacity); | 
|  |  | 
|  | private: | 
|  | enum { kInitialVMIsolateSymtabSize = 1024, kInitialSymtabSize = 2048 }; | 
|  |  | 
|  | template <typename StringType> | 
|  | static RawString* NewSymbol(Thread* thread, const StringType& str); | 
|  |  | 
|  | static intptr_t LookupPredefinedSymbol(RawObject* obj); | 
|  | static RawObject* GetPredefinedSymbol(intptr_t object_id); | 
|  | static bool IsPredefinedSymbolId(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 Serializer; | 
|  | friend class Deserializer; | 
|  | friend class ApiMessageReader; | 
|  |  | 
|  | DISALLOW_COPY_AND_ASSIGN(Symbols); | 
|  | }; | 
|  |  | 
|  | }  // namespace dart | 
|  |  | 
|  | #endif  // RUNTIME_VM_SYMBOLS_H_ |