third_party/WebKit/Source/bindings/core/v8/V8ObjectConstructor.h

/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
*     * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*     * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef V8ObjectConstructor_h
#define V8ObjectConstructor_h

#include "bindings/core/v8/V8PerIsolateData.h"
#include "core/CoreExport.h"
#include "wtf/Allocator.h"

#include <v8.h>

namespace blink {

class Document;

class ConstructorMode {
  STACK_ALLOCATED();

 public:
  enum Mode { WrapExistingObject, CreateNewObject };

  ConstructorMode(v8::Isolate* isolate) : m_isolate(isolate) {
    V8PerIsolateData* data = V8PerIsolateData::from(m_isolate);
    m_previous = data->m_constructorMode;
    data->m_constructorMode = WrapExistingObject;
  }

  ~ConstructorMode() {
    V8PerIsolateData* data = V8PerIsolateData::from(m_isolate);
    data->m_constructorMode = m_previous;
  }

  static bool current(v8::Isolate* isolate) {
    return V8PerIsolateData::from(isolate)->m_constructorMode;
  }

 private:
  v8::Isolate* m_isolate;
  bool m_previous;
};

class CORE_EXPORT V8ObjectConstructor {
  STATIC_ONLY(V8ObjectConstructor);

 public:
  static v8::MaybeLocal<v8::Object> newInstance(v8::Isolate*,
                                                v8::Local<v8::Function>);
  static v8::MaybeLocal<v8::Object> newInstance(v8::Isolate*,
                                                v8::Local<v8::Function>,
                                                int,
                                                v8::Local<v8::Value> argv[]);
  static v8::MaybeLocal<v8::Object> newInstanceInDocument(
      v8::Isolate*,
      v8::Local<v8::Function>,
      int,
      v8::Local<v8::Value> argv[],
      Document*);

  static void isValidConstructorMode(
      const v8::FunctionCallbackInfo<v8::Value>&);
};

}  // namespace blink

#endif  // V8ObjectConstructor_h