src/objects/js-shared-array.h

// Copyright 2022 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_JS_SHARED_ARRAY_H_
#define V8_OBJECTS_JS_SHARED_ARRAY_H_

#include "src/objects/js-objects.h"
#include "src/objects/js-struct.h"

// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"

namespace v8 {
namespace internal {

V8_OBJECT class JSSharedArray : public AlwaysSharedSpaceJSObject {
 public:
  DECL_PRINTER(JSSharedArray)
  EXPORT_DECL_VERIFIER(JSSharedArray)

  // In-object fields.
  enum {
    // The length field is constant and is equal to elements().length().
    //
    // TODO(v8:12547): We can save the space for this field by making it
    // possible to put AccessorInfo in shared or RO space.
    kLengthFieldIndex = 0,
    kInObjectFieldCount,
  };

  // Defined out-of-line below the class so `sizeof` on the still-incomplete
  // type can appear in an initializer.
  static const int kHeaderSize;
  static const int kSize;
} V8_OBJECT_END;

inline constexpr int JSSharedArray::kHeaderSize = sizeof(JSSharedArray);
inline constexpr int JSSharedArray::kSize =
    JSSharedArray::kHeaderSize +
    (kTaggedSize * JSSharedArray::kInObjectFieldCount);

}  // namespace internal
}  // namespace v8

#include "src/objects/object-macros-undef.h"

#endif  // V8_OBJECTS_JS_SHARED_ARRAY_H_