GCC Code Coverage Report
Directory: ../ Exec Total Coverage
File: /home/iojs/build/workspace/node-test-commit-linux-coverage-daily/nodes/benchmark/out/../src/aliased_struct.h Lines: 3 3 100.0 %
Date: 2020-06-24 22:13:30 Branches: 0 0 - %

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#ifndef SRC_ALIASED_STRUCT_H_
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#define SRC_ALIASED_STRUCT_H_
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#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#include "node_internals.h"
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#include "v8.h"
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#include <memory>
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namespace node {
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// AliasedStruct is a utility that allows uses a V8 Backing Store
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// to be exposed to the C++/C side as a struct and to the
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// JavaScript side as an ArrayBuffer to efficiently share
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// data without marshalling. It is similar in nature to
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// AliasedBuffer.
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//
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//   struct Foo { int x; }
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//
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//   AliasedStruct<Foo> foo;
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//   foo->x = 1;
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//
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//   Local<ArrayBuffer> ab = foo.GetArrayBuffer();
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template <typename T>
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class AliasedStruct final {
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 public:
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  template <typename... Args>
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  explicit AliasedStruct(v8::Isolate* isolate, Args&&... args);
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  inline AliasedStruct(const AliasedStruct& that);
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  inline ~AliasedStruct();
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  inline AliasedStruct& operator=(AliasedStruct&& that) noexcept;
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  v8::Local<v8::ArrayBuffer> GetArrayBuffer() const {
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    return buffer_.Get(isolate_);
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  }
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  const T* Data() const { return ptr_; }
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  T* Data() { return ptr_; }
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  const T& operator*() const { return *ptr_; }
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  T& operator*()  { return *ptr_; }
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  const T* operator->() const { return ptr_; }
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  T* operator->() { return ptr_; }
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 private:
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  v8::Isolate* isolate_;
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  std::shared_ptr<v8::BackingStore> store_;
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  T* ptr_;
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  v8::Global<v8::ArrayBuffer> buffer_;
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};
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}  // namespace node
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#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
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#endif  // SRC_ALIASED_STRUCT_H_