JSCallbackFunction.h 2.5 KB

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  1. /*
  2. * Copyright (C) 2006-2019 Apple Inc. All rights reserved.
  3. *
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions
  6. * are met:
  7. * 1. Redistributions of source code must retain the above copyright
  8. * notice, this list of conditions and the following disclaimer.
  9. * 2. Redistributions in binary form must reproduce the above copyright
  10. * notice, this list of conditions and the following disclaimer in the
  11. * documentation and/or other materials provided with the distribution.
  12. *
  13. * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14. * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
  17. * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18. * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19. * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20. * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21. * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24. */
  25. #ifndef JSCallbackFunction_h
  26. #define JSCallbackFunction_h
  27. #include "InternalFunction.h"
  28. #include "JSObjectRef.h"
  29. namespace JSC {
  30. class JSCallbackFunction final : public InternalFunction {
  31. friend struct APICallbackFunction;
  32. public:
  33. typedef InternalFunction Base;
  34. template<typename CellType, SubspaceAccess mode>
  35. static IsoSubspace* subspaceFor(VM& vm)
  36. {
  37. return vm.callbackFunctionSpace<mode>();
  38. }
  39. static JSCallbackFunction* create(VM&, JSGlobalObject*, JSObjectCallAsFunctionCallback, const String& name);
  40. DECLARE_INFO;
  41. // InternalFunction mish-mashes constructor and function behavior -- we should
  42. // refactor the code so this override isn't necessary
  43. static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue proto)
  44. {
  45. return Structure::create(vm, globalObject, proto, TypeInfo(InternalFunctionType, StructureFlags), info());
  46. }
  47. private:
  48. JSCallbackFunction(VM&, Structure*, JSObjectCallAsFunctionCallback);
  49. void finishCreation(VM&, const String& name);
  50. JSObjectCallAsFunctionCallback functionCallback() { return m_callback; }
  51. JSObjectCallAsFunctionCallback m_callback { nullptr };
  52. };
  53. } // namespace JSC
  54. #endif // JSCallbackFunction_h