Where Online Learning is simpler!

The C and C++ Include Header Files

/usr/include/node/v8-embedder-state-scope.h


$ cat -n /usr/include/node/v8-embedder-state-scope.h

     1	// Copyright 2021 the V8 project authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style license that can be
     3	// found in the LICENSE file.
     4	
     5	#ifndef INCLUDE_V8_EMBEDDER_STATE_SCOPE_H_
     6	#define INCLUDE_V8_EMBEDDER_STATE_SCOPE_H_
     7	
     8	#include <memory>
     9	
    10	#include "v8-internal.h"      // NOLINT(build/include_directory)
    11	#include "v8-local-handle.h"  // NOLINT(build/include_directory)
    12	
    13	namespace v8 {
    14	
    15	class Context;
    16	
    17	namespace internal {
    18	class EmbedderState;
    19	}  // namespace internal
    20	
    21	// A StateTag represents a possible state of the embedder.
    22	enum class EmbedderStateTag : uint8_t {
    23	  // reserved
    24	  EMPTY = 0,
    25	  OTHER = 1,
    26	  // embedder can define any state after
    27	};
    28	
    29	// A stack-allocated class that manages an embedder state on the isolate.
    30	// After an EmbedderState scope has been created, a new embedder state will be
    31	// pushed on the isolate stack.
    32	class V8_EXPORT EmbedderStateScope {
    33	 public:
    34	  EmbedderStateScope(Isolate* isolate, Local<v8::Context> context,
    35	                     EmbedderStateTag tag);
    36	
    37	  ~EmbedderStateScope();
    38	
    39	 private:
    40	  // Declaring operator new and delete as deleted is not spec compliant.
    41	  // Therefore declare them private instead to disable dynamic alloc
    42	  void* operator new(size_t size);
    43	  void* operator new[](size_t size);
    44	  void operator delete(void*, size_t);
    45	  void operator delete[](void*, size_t);
    46	
    47	  std::unique_ptr<internal::EmbedderState> embedder_state_;
    48	};
    49	
    50	}  // namespace v8
    51	
    52	#endif  // INCLUDE_V8_EMBEDDER_STATE_SCOPE_H_