// Copyright 2018 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_OBJECTS_STRUCT_H_ #define V8_OBJECTS_STRUCT_H_ #include "src/objects/heap-object.h" #include "src/objects/objects.h" // Has to be the last include (doesn't have include guards): #include "src/objects/object-macros.h" namespace v8 { namespace internal { class StructBodyDescriptor; #include "torque-generated/src/objects/struct-tq.inc" // An abstract superclass, a marker class really, for simple structure classes. // It doesn't carry any functionality but allows struct classes to be // identified in the type system. class Struct : public TorqueGeneratedStruct<Struct, HeapObject> { public: void BriefPrintDetails(std::ostream& os); static_assert(kHeaderSize == HeapObject::kHeaderSize); TQ_OBJECT_CONSTRUCTORS(Struct) }; class Tuple2 : public TorqueGeneratedTuple2<Tuple2, Struct> { public: void BriefPrintDetails(std::ostream& os); using BodyDescriptor = StructBodyDescriptor; TQ_OBJECT_CONSTRUCTORS(Tuple2) }; // Support for JavaScript accessors: A pair of a getter and a setter. Each // accessor can either be // * a JavaScript function or proxy: a real accessor // * a FunctionTemplateInfo: a real (lazy) accessor // * undefined: considered an accessor by the spec, too, strangely enough // * null: an accessor which has not been set class AccessorPair : public TorqueGeneratedAccessorPair<AccessorPair, Struct> { public: NEVER_READ_ONLY_SPACE static Handle<AccessorPair> Copy(Isolate* isolate, Handle<AccessorPair> pair); inline Object get(AccessorComponent component); inline void set(AccessorComponent component, Object value); inline void set(AccessorComponent component, Object value, ReleaseStoreTag tag); using TorqueGeneratedAccessorPair::getter; using TorqueGeneratedAccessorPair::set_getter; DECL_RELEASE_ACQUIRE_ACCESSORS(getter, Object) using TorqueGeneratedAccessorPair::set_setter; using TorqueGeneratedAccessorPair::setter; DECL_RELEASE_ACQUIRE_ACCESSORS(setter, Object) // Note: Returns undefined if the component is not set. static Handle<Object> GetComponent(Isolate* isolate, Handle<NativeContext> native_context, Handle<AccessorPair> accessor_pair, AccessorComponent component); // Set both components, skipping arguments which are a JavaScript null. inline void SetComponents(Object getter, Object setter); inline bool Equals(Object getter_value, Object setter_value); using BodyDescriptor = StructBodyDescriptor; TQ_OBJECT_CONSTRUCTORS(AccessorPair) }; class ClassPositions : public TorqueGeneratedClassPositions<ClassPositions, Struct> { public: // Dispatched behavior. void BriefPrintDetails(std::ostream& os); using BodyDescriptor = StructBodyDescriptor; TQ_OBJECT_CONSTRUCTORS(ClassPositions) }; } // namespace internal } // namespace v8 #include "src/objects/object-macros-undef.h" #endif // V8_OBJECTS_STRUCT_H_