API/ObjCCallbackFunction.h

   1 /*
   2  * Copyright (C) 2013 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 ObjCCallbackFunction_h
  26 #define ObjCCallbackFunction_h
  27
  28 #include <JavaScriptCore/JSBase.h>
  29
  30 #if JSC_OBJC_API_ENABLED
  31
  32 #import <JavaScriptCore/JSCallbackFunction.h>
  33
  34 #if defined(__OBJC__)
  35 JSObjectRef objCCallbackFunctionForMethod(JSContext *, Class, Protocol *, BOOL isInstanceMethod, SEL, const char* types);
  36 JSObjectRef objCCallbackFunctionForBlock(JSContext *, id);
  37 JSObjectRef objCCallbackFunctionForInit(JSContext *, Class, Protocol *, SEL, const char* types);
  38
  39 id tryUnwrapConstructor(JSObjectRef);
  40 #endif
  41
  42 namespace JSC {
  43
  44 class ObjCCallbackFunctionImpl;
  45
  46 class ObjCCallbackFunction : public InternalFunction {
  47     friend struct APICallbackFunction;
  48 public:
  49     typedef InternalFunction Base;
  50
  51     static ObjCCallbackFunction* create(VM&, JSGlobalObject*, const String& name, std::unique_ptr<ObjCCallbackFunctionImpl>);
  52     static void destroy(JSCell*);
  53
  54     static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
  55     {
  56         ASSERT(globalObject);
  57         return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
  58     }
  59
  60     DECLARE_EXPORT_INFO;
  61
  62     ObjCCallbackFunctionImpl* impl() const { return m_impl.get(); }
  63
  64 protected:
  65     ObjCCallbackFunction(VM&, JSGlobalObject*, JSObjectCallAsFunctionCallback, JSObjectCallAsConstructorCallback, std::unique_ptr<ObjCCallbackFunctionImpl>);
  66
  67 private:
  68     static CallType getCallData(JSCell*, CallData&);
  69     static ConstructType getConstructData(JSCell*, ConstructData&);
  70
  71     JSObjectCallAsFunctionCallback functionCallback() { return m_functionCallback; }
  72     JSObjectCallAsConstructorCallback constructCallback() { return m_constructCallback; }
  73
  74     JSObjectCallAsFunctionCallback m_functionCallback;
  75     JSObjectCallAsConstructorCallback m_constructCallback;
  76     std::unique_ptr<ObjCCallbackFunctionImpl> m_impl;
  77 };
  78
  79 } // namespace JSC
  80
  81 #endif
  82
  83 #endif // ObjCCallbackFunction_h