API/JSCallbackFunction.h

   1 /*
   2  * Copyright (C) 2006, 2008 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 COMPUTER, 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 COMPUTER, 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
  26 #ifndef JSCallbackFunction_h
  27 #define JSCallbackFunction_h
  28
  29 #include "InternalFunction.h"
  30 #include "JSObjectRef.h"
  31
  32 namespace JSC {
  33
  34 class JSCallbackFunction : public InternalFunction {
  35 protected:
  36     JSCallbackFunction(JSGlobalObject*, Structure*, JSObjectCallAsFunctionCallback);
  37     void finishCreation(VM&, const String& name);
  38
  39 public:
  40     typedef InternalFunction Base;
  41
  42     static JSCallbackFunction* create(ExecState*, JSGlobalObject*, JSObjectCallAsFunctionCallback, const String& name);
  43
  44     static const ClassInfo s_info;
  45
  46     // InternalFunction mish-mashes constructor and function behavior -- we should
  47     // refactor the code so this override isn't necessary
  48     static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue proto)
  49     {
  50         return Structure::create(vm, globalObject, proto, TypeInfo(ObjectType, StructureFlags), &s_info);
  51     }
  52
  53 protected:
  54     static CallType getCallData(JSCell*, CallData&);
  55
  56 private:
  57     static EncodedJSValue JSC_HOST_CALL call(ExecState*);
  58
  59     JSObjectCallAsFunctionCallback m_callback;
  60 };
  61
  62 } // namespace JSC
  63
  64 #endif // JSCallbackFunction_h