// 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_FOREIGN_H_ #define V8_OBJECTS_FOREIGN_H_ #include "src/objects/heap-object.h" #include "torque-generated/class-definitions-tq.h" // Has to be the last include (doesn't have include guards): #include "src/objects/object-macros.h" namespace v8 { namespace internal { // Foreign describes objects pointing from JavaScript to C structures. class Foreign : public TorqueGeneratedForeign<Foreign, HeapObject> { public: // [address]: field containing the address. DECL_GETTER(foreign_address, Address) static inline bool IsNormalized(Object object); // Dispatched behavior. DECL_PRINTER(Foreign) #ifdef V8_COMPRESS_POINTERS // TODO(ishell, v8:8875): When pointer compression is enabled the // kForeignAddressOffset is only kTaggedSize aligned but we can keep using // unaligned access since both x64 and arm64 architectures (where pointer // compression is supported) allow unaligned access to full words. STATIC_ASSERT(IsAligned(kForeignAddressOffset, kTaggedSize)); #else STATIC_ASSERT(IsAligned(kForeignAddressOffset, kExternalPointerSize)); #endif class BodyDescriptor; private: friend class Factory; friend class SerializerDeserializer; friend class StartupSerializer; inline void set_foreign_address(Isolate* isolate, Address value); TQ_OBJECT_CONSTRUCTORS(Foreign) }; } // namespace internal } // namespace v8 #include "src/objects/object-macros-undef.h" #endif // V8_OBJECTS_FOREIGN_H_