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      1 /*
      2  * Copyright (C) 2003, 2009 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 BINDINGS_OBJC_INSTANCE_H_
     27 #define BINDINGS_OBJC_INSTANCE_H_
     28 
     29 #include "objc_class.h"
     30 #include "objc_utility.h"
     31 
     32 namespace JSC {
     33 
     34 namespace Bindings {
     35 
     36 class ObjcClass;
     37 
     38 class ObjcInstance : public Instance {
     39 public:
     40     static PassRefPtr<ObjcInstance> create(ObjectStructPtr, PassRefPtr<RootObject>);
     41     virtual ~ObjcInstance();
     42 
     43     static void setGlobalException(NSString*, JSGlobalObject* exceptionEnvironment = 0); // A null exceptionEnvironment means the exception should propogate to any execution environment.
     44 
     45     virtual Class* getClass() const;
     46 
     47     virtual JSValue valueOf(ExecState*) const;
     48     virtual JSValue defaultValue(ExecState*, PreferredPrimitiveType) const;
     49 
     50     virtual JSValue getMethod(ExecState* exec, const Identifier& propertyName);
     51     JSValue invokeObjcMethod(ExecState*, ObjcMethod* method);
     52     virtual JSValue invokeMethod(ExecState*, RuntimeMethod* method);
     53     virtual bool supportsInvokeDefaultMethod() const;
     54     virtual JSValue invokeDefaultMethod(ExecState*);
     55 
     56     JSValue getValueOfUndefinedField(ExecState*, const Identifier&) const;
     57     virtual bool setValueOfUndefinedField(ExecState*, const Identifier&, JSValue);
     58 
     59     ObjectStructPtr getObject() const { return _instance.get(); }
     60 
     61     JSValue stringValue(ExecState*) const;
     62     JSValue numberValue(ExecState*) const;
     63     JSValue booleanValue() const;
     64 
     65 protected:
     66     virtual void virtualBegin();
     67     virtual void virtualEnd();
     68 
     69 private:
     70     static void moveGlobalExceptionToExecState(ExecState*);
     71 
     72     ObjcInstance(ObjectStructPtr, PassRefPtr<RootObject>);
     73 
     74     virtual RuntimeObject* newRuntimeObject(ExecState*);
     75 
     76     RetainPtr<ObjectStructPtr> _instance;
     77     mutable ObjcClass *_class;
     78     ObjectStructPtr _pool;
     79     int _beginCount;
     80 };
     81 
     82 } // namespace Bindings
     83 
     84 } // namespace JSC
     85 
     86 #endif // BINDINGS_OBJC_INSTANCE_H_
     87