1 files changed, 54 insertions, 0 deletions
diff --git a/src/aliased_struct-inl.h b/src/aliased_struct-inl.h
new file mode 100644
index 0000000000..17d5ff5809
--- /dev/null
+++ b/src/aliased_struct-inl.h
@@ -0,0 +1,54 @@
+#ifndef SRC_ALIASED_STRUCT_INL_H_
+#define SRC_ALIASED_STRUCT_INL_H_
+
+#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
+
+#include "aliased_struct.h"
+#include "v8.h"
+#include <memory>
+
+namespace node {
+
+template <typename T>
+template <typename... Args>
+AliasedStruct<T>::AliasedStruct(v8::Isolate* isolate, Args&&... args)
+    : isolate_(isolate) {
+  const v8::HandleScope handle_scope(isolate);
+
+  store_ = v8::ArrayBuffer::NewBackingStore(isolate, sizeof(T));
+  ptr_ = new (store_->Data()) T(std::forward<Args>(args)...);
+  DCHECK_NOT_NULL(ptr_);
+
+  v8::Local<v8::ArrayBuffer> buffer = v8::ArrayBuffer::New(isolate, store_);
+  buffer_ = v8::Global<v8::ArrayBuffer>(isolate, buffer);
+}
+
+template <typename T>
+AliasedStruct<T>::AliasedStruct(const AliasedStruct& that)
+    : AliasedStruct(that.isolate_, *that) {}
+
+template <typename T>
+AliasedStruct<T>& AliasedStruct<T>::operator=(
+    AliasedStruct<T>&& that) noexcept {
+  this->~AliasedStruct();
+  isolate_ = that.isolate_;
+  store_ = that.store_;
+  ptr_ = that.ptr_;
+
+  buffer_ = std::move(that.buffer_);
+
+  that.ptr_ = nullptr;
+  that.store_.reset();
+  return *this;
+}
+
+template <typename T>
+AliasedStruct<T>::~AliasedStruct() {
+  if (ptr_ != nullptr) ptr_->~T();
+}
+
+}  // namespace node
+
+#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
+
+#endif  // SRC_ALIASED_STRUCT_INL_H_