| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_FACTORY_H_ |
| #define V8_FACTORY_H_ |
| |
| #include "src/isolate.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| // Interface for handle based allocation. |
| |
| class Factory FINAL { |
| public: |
| Handle<Oddball> NewOddball(Handle<Map> map, |
| const char* to_string, |
| Handle<Object> to_number, |
| byte kind); |
| |
| // Allocates a fixed array initialized with undefined values. |
| Handle<FixedArray> NewFixedArray( |
| int size, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| // Allocate a new fixed array with non-existing entries (the hole). |
| Handle<FixedArray> NewFixedArrayWithHoles( |
| int size, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| // Allocates an uninitialized fixed array. It must be filled by the caller. |
| Handle<FixedArray> NewUninitializedFixedArray(int size); |
| |
| // Allocate a new uninitialized fixed double array. |
| // The function returns a pre-allocated empty fixed array for capacity = 0, |
| // so the return type must be the general fixed array class. |
| Handle<FixedArrayBase> NewFixedDoubleArray( |
| int size, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| // Allocate a new fixed double array with hole values. |
| Handle<FixedArrayBase> NewFixedDoubleArrayWithHoles( |
| int size, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| Handle<ConstantPoolArray> NewConstantPoolArray( |
| const ConstantPoolArray::NumberOfEntries& small); |
| |
| Handle<ConstantPoolArray> NewExtendedConstantPoolArray( |
| const ConstantPoolArray::NumberOfEntries& small, |
| const ConstantPoolArray::NumberOfEntries& extended); |
| |
| Handle<OrderedHashSet> NewOrderedHashSet(); |
| Handle<OrderedHashMap> NewOrderedHashMap(); |
| |
| // Create a new boxed value. |
| Handle<Box> NewBox(Handle<Object> value); |
| |
| // Create a pre-tenured empty AccessorPair. |
| Handle<AccessorPair> NewAccessorPair(); |
| |
| // Create an empty TypeFeedbackInfo. |
| Handle<TypeFeedbackInfo> NewTypeFeedbackInfo(); |
| |
| // Finds the internalized copy for string in the string table. |
| // If not found, a new string is added to the table and returned. |
| Handle<String> InternalizeUtf8String(Vector<const char> str); |
| Handle<String> InternalizeUtf8String(const char* str) { |
| return InternalizeUtf8String(CStrVector(str)); |
| } |
| Handle<String> InternalizeString(Handle<String> str); |
| Handle<String> InternalizeOneByteString(Vector<const uint8_t> str); |
| Handle<String> InternalizeOneByteString( |
| Handle<SeqOneByteString>, int from, int length); |
| |
| Handle<String> InternalizeTwoByteString(Vector<const uc16> str); |
| |
| template<class StringTableKey> |
| Handle<String> InternalizeStringWithKey(StringTableKey* key); |
| |
| |
| // String creation functions. Most of the string creation functions take |
| // a Heap::PretenureFlag argument to optionally request that they be |
| // allocated in the old generation. The pretenure flag defaults to |
| // DONT_TENURE. |
| // |
| // Creates a new String object. There are two String encodings: one-byte and |
| // two-byte. One should choose between the three string factory functions |
| // based on the encoding of the string buffer that the string is |
| // initialized from. |
| // - ...FromOneByte initializes the string from a buffer that is Latin1 |
| // encoded (it does not check that the buffer is Latin1 encoded) and |
| // the result will be Latin1 encoded. |
| // - ...FromUtf8 initializes the string from a buffer that is UTF-8 |
| // encoded. If the characters are all ASCII characters, the result |
| // will be Latin1 encoded, otherwise it will converted to two-byte. |
| // - ...FromTwoByte initializes the string from a buffer that is two-byte |
| // encoded. If the characters are all Latin1 characters, the result |
| // will be converted to Latin1, otherwise it will be left as two-byte. |
| // |
| // One-byte strings are pretenured when used as keys in the SourceCodeCache. |
| MUST_USE_RESULT MaybeHandle<String> NewStringFromOneByte( |
| Vector<const uint8_t> str, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| template <size_t N> |
| inline Handle<String> NewStringFromStaticChars( |
| const char (&str)[N], PretenureFlag pretenure = NOT_TENURED) { |
| DCHECK(N == StrLength(str) + 1); |
| return NewStringFromOneByte(STATIC_CHAR_VECTOR(str), pretenure) |
| .ToHandleChecked(); |
| } |
| |
| inline Handle<String> NewStringFromAsciiChecked( |
| const char* str, |
| PretenureFlag pretenure = NOT_TENURED) { |
| return NewStringFromOneByte( |
| OneByteVector(str), pretenure).ToHandleChecked(); |
| } |
| |
| |
| // Allocates and fully initializes a String. There are two String encodings: |
| // one-byte and two-byte. One should choose between the threestring |
| // allocation functions based on the encoding of the string buffer used to |
| // initialized the string. |
| // - ...FromOneByte initializes the string from a buffer that is Latin1 |
| // encoded (it does not check that the buffer is Latin1 encoded) and the |
| // result will be Latin1 encoded. |
| // - ...FromUTF8 initializes the string from a buffer that is UTF-8 |
| // encoded. If the characters are all ASCII characters, the result |
| // will be Latin1 encoded, otherwise it will converted to two-byte. |
| // - ...FromTwoByte initializes the string from a buffer that is two-byte |
| // encoded. If the characters are all Latin1 characters, the |
| // result will be converted to Latin1, otherwise it will be left as |
| // two-byte. |
| |
| // TODO(dcarney): remove this function. |
| MUST_USE_RESULT inline MaybeHandle<String> NewStringFromAscii( |
| Vector<const char> str, |
| PretenureFlag pretenure = NOT_TENURED) { |
| return NewStringFromOneByte(Vector<const uint8_t>::cast(str), pretenure); |
| } |
| |
| // UTF8 strings are pretenured when used for regexp literal patterns and |
| // flags in the parser. |
| MUST_USE_RESULT MaybeHandle<String> NewStringFromUtf8( |
| Vector<const char> str, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| MUST_USE_RESULT MaybeHandle<String> NewStringFromTwoByte( |
| Vector<const uc16> str, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| // Allocates an internalized string in old space based on the character |
| // stream. |
| MUST_USE_RESULT Handle<String> NewInternalizedStringFromUtf8( |
| Vector<const char> str, |
| int chars, |
| uint32_t hash_field); |
| |
| MUST_USE_RESULT Handle<String> NewOneByteInternalizedString( |
| Vector<const uint8_t> str, uint32_t hash_field); |
| |
| MUST_USE_RESULT Handle<String> NewOneByteInternalizedSubString( |
| Handle<SeqOneByteString> string, int offset, int length, |
| uint32_t hash_field); |
| |
| MUST_USE_RESULT Handle<String> NewTwoByteInternalizedString( |
| Vector<const uc16> str, |
| uint32_t hash_field); |
| |
| MUST_USE_RESULT Handle<String> NewInternalizedStringImpl( |
| Handle<String> string, int chars, uint32_t hash_field); |
| |
| // Compute the matching internalized string map for a string if possible. |
| // Empty handle is returned if string is in new space or not flattened. |
| MUST_USE_RESULT MaybeHandle<Map> InternalizedStringMapForString( |
| Handle<String> string); |
| |
| // Allocates and partially initializes an one-byte or two-byte String. The |
| // characters of the string are uninitialized. Currently used in regexp code |
| // only, where they are pretenured. |
| MUST_USE_RESULT MaybeHandle<SeqOneByteString> NewRawOneByteString( |
| int length, |
| PretenureFlag pretenure = NOT_TENURED); |
| MUST_USE_RESULT MaybeHandle<SeqTwoByteString> NewRawTwoByteString( |
| int length, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| // Creates a single character string where the character has given code. |
| // A cache is used for Latin1 codes. |
| Handle<String> LookupSingleCharacterStringFromCode(uint32_t code); |
| |
| // Create a new cons string object which consists of a pair of strings. |
| MUST_USE_RESULT MaybeHandle<String> NewConsString(Handle<String> left, |
| Handle<String> right); |
| |
| // Create a new string object which holds a proper substring of a string. |
| Handle<String> NewProperSubString(Handle<String> str, |
| int begin, |
| int end); |
| |
| // Create a new string object which holds a substring of a string. |
| Handle<String> NewSubString(Handle<String> str, int begin, int end) { |
| if (begin == 0 && end == str->length()) return str; |
| return NewProperSubString(str, begin, end); |
| } |
| |
| // Creates a new external String object. There are two String encodings |
| // in the system: one-byte and two-byte. Unlike other String types, it does |
| // not make sense to have a UTF-8 factory function for external strings, |
| // because we cannot change the underlying buffer. Note that these strings |
| // are backed by a string resource that resides outside the V8 heap. |
| MUST_USE_RESULT MaybeHandle<String> NewExternalStringFromOneByte( |
| const ExternalOneByteString::Resource* resource); |
| MUST_USE_RESULT MaybeHandle<String> NewExternalStringFromTwoByte( |
| const ExternalTwoByteString::Resource* resource); |
| |
| // Create a symbol. |
| Handle<Symbol> NewSymbol(); |
| Handle<Symbol> NewPrivateSymbol(); |
| Handle<Symbol> NewPrivateOwnSymbol(); |
| |
| // Create a global (but otherwise uninitialized) context. |
| Handle<Context> NewNativeContext(); |
| |
| // Create a global context. |
| Handle<Context> NewGlobalContext(Handle<JSFunction> function, |
| Handle<ScopeInfo> scope_info); |
| |
| // Create a module context. |
| Handle<Context> NewModuleContext(Handle<ScopeInfo> scope_info); |
| |
| // Create a function context. |
| Handle<Context> NewFunctionContext(int length, Handle<JSFunction> function); |
| |
| // Create a catch context. |
| Handle<Context> NewCatchContext(Handle<JSFunction> function, |
| Handle<Context> previous, |
| Handle<String> name, |
| Handle<Object> thrown_object); |
| |
| // Create a 'with' context. |
| Handle<Context> NewWithContext(Handle<JSFunction> function, |
| Handle<Context> previous, |
| Handle<JSReceiver> extension); |
| |
| // Create a block context. |
| Handle<Context> NewBlockContext(Handle<JSFunction> function, |
| Handle<Context> previous, |
| Handle<ScopeInfo> scope_info); |
| |
| // Allocate a new struct. The struct is pretenured (allocated directly in |
| // the old generation). |
| Handle<Struct> NewStruct(InstanceType type); |
| |
| Handle<CodeCache> NewCodeCache(); |
| |
| Handle<AliasedArgumentsEntry> NewAliasedArgumentsEntry( |
| int aliased_context_slot); |
| |
| Handle<DeclaredAccessorDescriptor> NewDeclaredAccessorDescriptor(); |
| |
| Handle<DeclaredAccessorInfo> NewDeclaredAccessorInfo(); |
| |
| Handle<ExecutableAccessorInfo> NewExecutableAccessorInfo(); |
| |
| Handle<Script> NewScript(Handle<String> source); |
| |
| // Foreign objects are pretenured when allocated by the bootstrapper. |
| Handle<Foreign> NewForeign(Address addr, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| // Allocate a new foreign object. The foreign is pretenured (allocated |
| // directly in the old generation). |
| Handle<Foreign> NewForeign(const AccessorDescriptor* foreign); |
| |
| Handle<ByteArray> NewByteArray(int length, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| Handle<ExternalArray> NewExternalArray( |
| int length, |
| ExternalArrayType array_type, |
| void* external_pointer, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| Handle<FixedTypedArrayBase> NewFixedTypedArray( |
| int length, |
| ExternalArrayType array_type, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| Handle<Cell> NewCell(Handle<Object> value); |
| |
| Handle<PropertyCell> NewPropertyCellWithHole(); |
| |
| Handle<PropertyCell> NewPropertyCell(Handle<Object> value); |
| |
| Handle<WeakCell> NewWeakCell(Handle<HeapObject> value); |
| |
| // Allocate a tenured AllocationSite. It's payload is null. |
| Handle<AllocationSite> NewAllocationSite(); |
| |
| Handle<Map> NewMap( |
| InstanceType type, |
| int instance_size, |
| ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND); |
| |
| Handle<HeapObject> NewFillerObject(int size, |
| bool double_align, |
| AllocationSpace space); |
| |
| Handle<JSObject> NewFunctionPrototype(Handle<JSFunction> function); |
| |
| Handle<JSObject> CopyJSObject(Handle<JSObject> object); |
| |
| Handle<JSObject> CopyJSObjectWithAllocationSite(Handle<JSObject> object, |
| Handle<AllocationSite> site); |
| |
| Handle<FixedArray> CopyFixedArrayWithMap(Handle<FixedArray> array, |
| Handle<Map> map); |
| |
| Handle<FixedArray> CopyFixedArray(Handle<FixedArray> array); |
| |
| // This method expects a COW array in new space, and creates a copy |
| // of it in old space. |
| Handle<FixedArray> CopyAndTenureFixedCOWArray(Handle<FixedArray> array); |
| |
| Handle<FixedDoubleArray> CopyFixedDoubleArray( |
| Handle<FixedDoubleArray> array); |
| |
| Handle<ConstantPoolArray> CopyConstantPoolArray( |
| Handle<ConstantPoolArray> array); |
| |
| // Numbers (e.g. literals) are pretenured by the parser. |
| // The return value may be a smi or a heap number. |
| Handle<Object> NewNumber(double value, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| Handle<Object> NewNumberFromInt(int32_t value, |
| PretenureFlag pretenure = NOT_TENURED); |
| Handle<Object> NewNumberFromUint(uint32_t value, |
| PretenureFlag pretenure = NOT_TENURED); |
| Handle<Object> NewNumberFromSize(size_t value, |
| PretenureFlag pretenure = NOT_TENURED) { |
| if (Smi::IsValid(static_cast<intptr_t>(value))) { |
| return Handle<Object>(Smi::FromIntptr(static_cast<intptr_t>(value)), |
| isolate()); |
| } |
| return NewNumber(static_cast<double>(value), pretenure); |
| } |
| Handle<HeapNumber> NewHeapNumber(double value, |
| MutableMode mode = IMMUTABLE, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| // These objects are used by the api to create env-independent data |
| // structures in the heap. |
| inline Handle<JSObject> NewNeanderObject() { |
| return NewJSObjectFromMap(neander_map()); |
| } |
| |
| Handle<JSObject> NewArgumentsObject(Handle<JSFunction> callee, int length); |
| |
| // JS objects are pretenured when allocated by the bootstrapper and |
| // runtime. |
| Handle<JSObject> NewJSObject(Handle<JSFunction> constructor, |
| PretenureFlag pretenure = NOT_TENURED); |
| // JSObject that should have a memento pointing to the allocation site. |
| Handle<JSObject> NewJSObjectWithMemento(Handle<JSFunction> constructor, |
| Handle<AllocationSite> site); |
| |
| // Global objects are pretenured and initialized based on a constructor. |
| Handle<GlobalObject> NewGlobalObject(Handle<JSFunction> constructor); |
| |
| // JS objects are pretenured when allocated by the bootstrapper and |
| // runtime. |
| Handle<JSObject> NewJSObjectFromMap( |
| Handle<Map> map, |
| PretenureFlag pretenure = NOT_TENURED, |
| bool allocate_properties = true, |
| Handle<AllocationSite> allocation_site = Handle<AllocationSite>::null()); |
| |
| // JS modules are pretenured. |
| Handle<JSModule> NewJSModule(Handle<Context> context, |
| Handle<ScopeInfo> scope_info); |
| |
| // JS arrays are pretenured when allocated by the parser. |
| |
| // Create a JSArray with no elements. |
| Handle<JSArray> NewJSArray( |
| ElementsKind elements_kind, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| // Create a JSArray with a specified length and elements initialized |
| // according to the specified mode. |
| Handle<JSArray> NewJSArray( |
| ElementsKind elements_kind, int length, int capacity, |
| ArrayStorageAllocationMode mode = DONT_INITIALIZE_ARRAY_ELEMENTS, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| Handle<JSArray> NewJSArray( |
| int capacity, |
| ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND, |
| PretenureFlag pretenure = NOT_TENURED) { |
| if (capacity != 0) { |
| elements_kind = GetHoleyElementsKind(elements_kind); |
| } |
| return NewJSArray(elements_kind, 0, capacity, |
| INITIALIZE_ARRAY_ELEMENTS_WITH_HOLE, pretenure); |
| } |
| |
| // Create a JSArray with the given elements. |
| Handle<JSArray> NewJSArrayWithElements( |
| Handle<FixedArrayBase> elements, |
| ElementsKind elements_kind, |
| int length, |
| PretenureFlag pretenure = NOT_TENURED); |
| |
| Handle<JSArray> NewJSArrayWithElements( |
| Handle<FixedArrayBase> elements, |
| ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND, |
| PretenureFlag pretenure = NOT_TENURED) { |
| return NewJSArrayWithElements( |
| elements, elements_kind, elements->length(), pretenure); |
| } |
| |
| void NewJSArrayStorage( |
| Handle<JSArray> array, |
| int length, |
| int capacity, |
| ArrayStorageAllocationMode mode = DONT_INITIALIZE_ARRAY_ELEMENTS); |
| |
| Handle<JSGeneratorObject> NewJSGeneratorObject(Handle<JSFunction> function); |
| |
| Handle<JSArrayBuffer> NewJSArrayBuffer(); |
| |
| Handle<JSTypedArray> NewJSTypedArray(ExternalArrayType type); |
| |
| // Creates a new JSTypedArray with the specified buffer. |
| Handle<JSTypedArray> NewJSTypedArray(ExternalArrayType type, |
| Handle<JSArrayBuffer> buffer, |
| size_t byte_offset, size_t length); |
| |
| Handle<JSDataView> NewJSDataView(); |
| Handle<JSDataView> NewJSDataView(Handle<JSArrayBuffer> buffer, |
| size_t byte_offset, size_t byte_length); |
| |
| // TODO(aandrey): Maybe these should take table, index and kind arguments. |
| Handle<JSMapIterator> NewJSMapIterator(); |
| Handle<JSSetIterator> NewJSSetIterator(); |
| |
| // Allocates a Harmony proxy. |
| Handle<JSProxy> NewJSProxy(Handle<Object> handler, Handle<Object> prototype); |
| |
| // Allocates a Harmony function proxy. |
| Handle<JSProxy> NewJSFunctionProxy(Handle<Object> handler, |
| Handle<Object> call_trap, |
| Handle<Object> construct_trap, |
| Handle<Object> prototype); |
| |
| // Reinitialize an JSGlobalProxy based on a constructor. The object |
| // must have the same size as objects allocated using the |
| // constructor. The object is reinitialized and behaves as an |
| // object that has been freshly allocated using the constructor. |
| void ReinitializeJSGlobalProxy(Handle<JSGlobalProxy> global, |
| Handle<JSFunction> constructor); |
| |
| // Change the type of the argument into a JS object/function and reinitialize. |
| void BecomeJSObject(Handle<JSProxy> object); |
| void BecomeJSFunction(Handle<JSProxy> object); |
| |
| Handle<JSFunction> NewFunction(Handle<String> name, |
| Handle<Code> code, |
| Handle<Object> prototype, |
| bool read_only_prototype = false); |
| Handle<JSFunction> NewFunction(Handle<String> name); |
| Handle<JSFunction> NewFunctionWithoutPrototype(Handle<String> name, |
| Handle<Code> code); |
| |
| Handle<JSFunction> NewFunctionFromSharedFunctionInfo( |
| Handle<SharedFunctionInfo> function_info, |
| Handle<Context> context, |
| PretenureFlag pretenure = TENURED); |
| |
| Handle<JSFunction> NewFunction(Handle<String> name, |
| Handle<Code> code, |
| Handle<Object> prototype, |
| InstanceType type, |
| int instance_size, |
| bool read_only_prototype = false); |
| Handle<JSFunction> NewFunction(Handle<String> name, |
| Handle<Code> code, |
| InstanceType type, |
| int instance_size); |
| |
| // Create a serialized scope info. |
| Handle<ScopeInfo> NewScopeInfo(int length); |
| |
| // Create an External object for V8's external API. |
| Handle<JSObject> NewExternal(void* value); |
| |
| // The reference to the Code object is stored in self_reference. |
| // This allows generated code to reference its own Code object |
| // by containing this handle. |
| Handle<Code> NewCode(const CodeDesc& desc, |
| Code::Flags flags, |
| Handle<Object> self_reference, |
| bool immovable = false, |
| bool crankshafted = false, |
| int prologue_offset = Code::kPrologueOffsetNotSet, |
| bool is_debug = false); |
| |
| Handle<Code> CopyCode(Handle<Code> code); |
| |
| Handle<Code> CopyCode(Handle<Code> code, Vector<byte> reloc_info); |
| |
| // Interface for creating error objects. |
| |
| MaybeHandle<Object> NewError(const char* maker, const char* message, |
| Handle<JSArray> args); |
| Handle<String> EmergencyNewError(const char* message, Handle<JSArray> args); |
| MaybeHandle<Object> NewError(const char* maker, const char* message, |
| Vector<Handle<Object> > args); |
| MaybeHandle<Object> NewError(const char* message, |
| Vector<Handle<Object> > args); |
| MaybeHandle<Object> NewError(Handle<String> message); |
| MaybeHandle<Object> NewError(const char* constructor, Handle<String> message); |
| |
| MaybeHandle<Object> NewTypeError(const char* message, |
| Vector<Handle<Object> > args); |
| MaybeHandle<Object> NewTypeError(Handle<String> message); |
| |
| MaybeHandle<Object> NewRangeError(const char* message, |
| Vector<Handle<Object> > args); |
| MaybeHandle<Object> NewRangeError(Handle<String> message); |
| |
| MaybeHandle<Object> NewInvalidStringLengthError() { |
| return NewRangeError("invalid_string_length", |
| HandleVector<Object>(NULL, 0)); |
| } |
| |
| MaybeHandle<Object> NewSyntaxError(const char* message, Handle<JSArray> args); |
| MaybeHandle<Object> NewSyntaxError(Handle<String> message); |
| |
| MaybeHandle<Object> NewReferenceError(const char* message, |
| Vector<Handle<Object> > args); |
| MaybeHandle<Object> NewReferenceError(const char* message, |
| Handle<JSArray> args); |
| MaybeHandle<Object> NewReferenceError(Handle<String> message); |
| |
| MaybeHandle<Object> NewEvalError(const char* message, |
| Vector<Handle<Object> > args); |
| |
| Handle<String> NumberToString(Handle<Object> number, |
| bool check_number_string_cache = true); |
| |
| Handle<String> Uint32ToString(uint32_t value) { |
| return NumberToString(NewNumberFromUint(value)); |
| } |
| |
| enum ApiInstanceType { |
| JavaScriptObjectType, |
| GlobalObjectType, |
| GlobalProxyType |
| }; |
| |
| Handle<JSFunction> CreateApiFunction( |
| Handle<FunctionTemplateInfo> data, |
| Handle<Object> prototype, |
| ApiInstanceType type = JavaScriptObjectType); |
| |
| Handle<JSFunction> InstallMembers(Handle<JSFunction> function); |
| |
| // Installs interceptors on the instance. 'desc' is a function template, |
| // and instance is an object instance created by the function of this |
| // function template. |
| MUST_USE_RESULT MaybeHandle<FunctionTemplateInfo> ConfigureInstance( |
| Handle<FunctionTemplateInfo> desc, Handle<JSObject> instance); |
| |
| #define ROOT_ACCESSOR(type, name, camel_name) \ |
| inline Handle<type> name() { \ |
| return Handle<type>(bit_cast<type**>( \ |
| &isolate()->heap()->roots_[Heap::k##camel_name##RootIndex])); \ |
| } |
| ROOT_LIST(ROOT_ACCESSOR) |
| #undef ROOT_ACCESSOR |
| |
| #define STRUCT_MAP_ACCESSOR(NAME, Name, name) \ |
| inline Handle<Map> name##_map() { \ |
| return Handle<Map>(bit_cast<Map**>( \ |
| &isolate()->heap()->roots_[Heap::k##Name##MapRootIndex])); \ |
| } |
| STRUCT_LIST(STRUCT_MAP_ACCESSOR) |
| #undef STRUCT_MAP_ACCESSOR |
| |
| #define STRING_ACCESSOR(name, str) \ |
| inline Handle<String> name() { \ |
| return Handle<String>(bit_cast<String**>( \ |
| &isolate()->heap()->roots_[Heap::k##name##RootIndex])); \ |
| } |
| INTERNALIZED_STRING_LIST(STRING_ACCESSOR) |
| #undef STRING_ACCESSOR |
| |
| #define SYMBOL_ACCESSOR(name) \ |
| inline Handle<Symbol> name() { \ |
| return Handle<Symbol>(bit_cast<Symbol**>( \ |
| &isolate()->heap()->roots_[Heap::k##name##RootIndex])); \ |
| } |
| PRIVATE_SYMBOL_LIST(SYMBOL_ACCESSOR) |
| #undef SYMBOL_ACCESSOR |
| |
| inline void set_string_table(Handle<StringTable> table) { |
| isolate()->heap()->set_string_table(*table); |
| } |
| |
| Handle<String> hidden_string() { |
| return Handle<String>(&isolate()->heap()->hidden_string_); |
| } |
| |
| // Allocates a new SharedFunctionInfo object. |
| Handle<SharedFunctionInfo> NewSharedFunctionInfo( |
| Handle<String> name, int number_of_literals, FunctionKind kind, |
| Handle<Code> code, Handle<ScopeInfo> scope_info, |
| Handle<TypeFeedbackVector> feedback_vector); |
| Handle<SharedFunctionInfo> NewSharedFunctionInfo(Handle<String> name, |
| MaybeHandle<Code> code); |
| |
| // Allocate a new type feedback vector |
| Handle<TypeFeedbackVector> NewTypeFeedbackVector(int slot_count, |
| int ic_slot_count); |
| |
| // Allocates a new JSMessageObject object. |
| Handle<JSMessageObject> NewJSMessageObject( |
| Handle<String> type, |
| Handle<JSArray> arguments, |
| int start_position, |
| int end_position, |
| Handle<Object> script, |
| Handle<Object> stack_frames); |
| |
| Handle<DebugInfo> NewDebugInfo(Handle<SharedFunctionInfo> shared); |
| |
| // Return a map using the map cache in the native context. |
| // The key the an ordered set of property names. |
| Handle<Map> ObjectLiteralMapFromCache(Handle<Context> context, |
| Handle<FixedArray> keys); |
| |
| // Creates a new FixedArray that holds the data associated with the |
| // atom regexp and stores it in the regexp. |
| void SetRegExpAtomData(Handle<JSRegExp> regexp, |
| JSRegExp::Type type, |
| Handle<String> source, |
| JSRegExp::Flags flags, |
| Handle<Object> match_pattern); |
| |
| // Creates a new FixedArray that holds the data associated with the |
| // irregexp regexp and stores it in the regexp. |
| void SetRegExpIrregexpData(Handle<JSRegExp> regexp, |
| JSRegExp::Type type, |
| Handle<String> source, |
| JSRegExp::Flags flags, |
| int capture_count); |
| |
| // Returns the value for a known global constant (a property of the global |
| // object which is neither configurable nor writable) like 'undefined'. |
| // Returns a null handle when the given name is unknown. |
| Handle<Object> GlobalConstantFor(Handle<String> name); |
| |
| // Converts the given boolean condition to JavaScript boolean value. |
| Handle<Object> ToBoolean(bool value); |
| |
| private: |
| Isolate* isolate() { return reinterpret_cast<Isolate*>(this); } |
| |
| // Creates a heap object based on the map. The fields of the heap object are |
| // not initialized by New<>() functions. It's the responsibility of the caller |
| // to do that. |
| template<typename T> |
| Handle<T> New(Handle<Map> map, AllocationSpace space); |
| |
| template<typename T> |
| Handle<T> New(Handle<Map> map, |
| AllocationSpace space, |
| Handle<AllocationSite> allocation_site); |
| |
| // Creates a code object that is not yet fully initialized yet. |
| inline Handle<Code> NewCodeRaw(int object_size, bool immovable); |
| |
| // Create a new map cache. |
| Handle<MapCache> NewMapCache(int at_least_space_for); |
| |
| // Update the map cache in the native context with (keys, map) |
| Handle<MapCache> AddToMapCache(Handle<Context> context, |
| Handle<FixedArray> keys, |
| Handle<Map> map); |
| |
| // Attempt to find the number in a small cache. If we finds it, return |
| // the string representation of the number. Otherwise return undefined. |
| Handle<Object> GetNumberStringCache(Handle<Object> number); |
| |
| // Update the cache with a new number-string pair. |
| void SetNumberStringCache(Handle<Object> number, Handle<String> string); |
| |
| // Initializes a function with a shared part and prototype. |
| // Note: this code was factored out of NewFunction such that other parts of |
| // the VM could use it. Specifically, a function that creates instances of |
| // type JS_FUNCTION_TYPE benefit from the use of this function. |
| inline void InitializeFunction(Handle<JSFunction> function, |
| Handle<SharedFunctionInfo> info, |
| Handle<Context> context); |
| |
| // Creates a function initialized with a shared part. |
| Handle<JSFunction> NewFunction(Handle<Map> map, |
| Handle<SharedFunctionInfo> info, |
| Handle<Context> context, |
| PretenureFlag pretenure = TENURED); |
| |
| Handle<JSFunction> NewFunction(Handle<Map> map, |
| Handle<String> name, |
| MaybeHandle<Code> maybe_code); |
| |
| // Reinitialize a JSProxy into an (empty) JS object of respective type and |
| // size, but keeping the original prototype. The receiver must have at least |
| // the size of the new object. The object is reinitialized and behaves as an |
| // object that has been freshly allocated. |
| void ReinitializeJSProxy(Handle<JSProxy> proxy, InstanceType type, int size); |
| }; |
| |
| } } // namespace v8::internal |
| |
| #endif // V8_FACTORY_H_ |