JSAPIValueWrapper.h 2.2 KB

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  1. /*
  2. * Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
  3. * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  4. * Copyright (C) 2003-2019 Apple Inc. All rights reserved.
  5. *
  6. * This library is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU Library General Public
  8. * License as published by the Free Software Foundation; either
  9. * version 2 of the License, or (at your option) any later version.
  10. *
  11. * This library is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14. * Library General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU Library General Public License
  17. * along with this library; see the file COPYING.LIB. If not, write to
  18. * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19. * Boston, MA 02110-1301, USA.
  20. *
  21. */
  22. #pragma once
  23. #include "CallFrame.h"
  24. #include "JSCJSValue.h"
  25. #include "JSCast.h"
  26. #include "Structure.h"
  27. namespace JSC {
  28. class JSAPIValueWrapper final : public JSCell {
  29. friend JSValue jsAPIValueWrapper(ExecState*, JSValue);
  30. public:
  31. typedef JSCell Base;
  32. static const unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
  33. JSValue value() const { return m_value.get(); }
  34. static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
  35. {
  36. return Structure::create(vm, globalObject, prototype, TypeInfo(APIValueWrapperType, OverridesGetPropertyNames), info());
  37. }
  38. DECLARE_EXPORT_INFO;
  39. static JSAPIValueWrapper* create(VM& vm, JSValue value)
  40. {
  41. JSAPIValueWrapper* wrapper = new (NotNull, allocateCell<JSAPIValueWrapper>(vm.heap)) JSAPIValueWrapper(vm);
  42. wrapper->finishCreation(vm, value);
  43. return wrapper;
  44. }
  45. protected:
  46. void finishCreation(VM& vm, JSValue value)
  47. {
  48. Base::finishCreation(vm);
  49. m_value.set(vm, this, value);
  50. ASSERT(!value.isCell());
  51. }
  52. private:
  53. JSAPIValueWrapper(VM& vm)
  54. : JSCell(vm, vm.apiWrapperStructure.get())
  55. {
  56. }
  57. WriteBarrier<Unknown> m_value;
  58. };
  59. } // namespace JSC