1#ifndef SRC_ALIASED_STRUCT_INL_H_ 2#define SRC_ALIASED_STRUCT_INL_H_ 3 4#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS 5 6#include "aliased_struct.h" 7#include "v8.h" 8#include <memory> 9 10namespace node { 11 12template <typename T> 13template <typename... Args> 14AliasedStruct<T>::AliasedStruct(v8::Isolate* isolate, Args&&... args) 15 : isolate_(isolate) { 16 const v8::HandleScope handle_scope(isolate); 17 18 store_ = v8::ArrayBuffer::NewBackingStore(isolate, sizeof(T)); 19 ptr_ = new (store_->Data()) T(std::forward<Args>(args)...); 20 DCHECK_NOT_NULL(ptr_); 21 22 v8::Local<v8::ArrayBuffer> buffer = v8::ArrayBuffer::New(isolate, store_); 23 buffer_ = v8::Global<v8::ArrayBuffer>(isolate, buffer); 24} 25 26template <typename T> 27AliasedStruct<T>::AliasedStruct(const AliasedStruct& that) 28 : AliasedStruct(that.isolate_, *that) {} 29 30template <typename T> 31AliasedStruct<T>& AliasedStruct<T>::operator=( 32 AliasedStruct<T>&& that) noexcept { 33 this->~AliasedStruct(); 34 isolate_ = that.isolate_; 35 store_ = that.store_; 36 ptr_ = that.ptr_; 37 38 buffer_ = std::move(that.buffer_); 39 40 that.ptr_ = nullptr; 41 that.store_.reset(); 42 return *this; 43} 44 45template <typename T> 46AliasedStruct<T>::~AliasedStruct() { 47 if (ptr_ != nullptr) ptr_->~T(); 48} 49 50} // namespace node 51 52#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS 53 54#endif // SRC_ALIASED_STRUCT_INL_H_ 55