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      1 /*
      2  * Copyright (C) 2008, 2009 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef ScriptInstance_h
     32 #define ScriptInstance_h
     33 
     34 #include <v8.h>
     35 
     36 #include <wtf/PassRefPtr.h>
     37 #include <wtf/RefCounted.h>
     38 #include <wtf/RefPtr.h>
     39 
     40 namespace WebCore {
     41 
     42 class V8ScriptInstance : public RefCounted<V8ScriptInstance> {
     43 public:
     44     static PassRefPtr<V8ScriptInstance> create(v8::Handle<v8::Object> instance)
     45     {
     46         return adoptRef(new V8ScriptInstance(instance));
     47     }
     48     V8ScriptInstance();
     49     V8ScriptInstance(v8::Handle<v8::Object>);
     50     ~V8ScriptInstance();
     51     v8::Persistent<v8::Object> instance();
     52 
     53 private:
     54     void clear();
     55     void set(v8::Handle<v8::Object>);
     56     mutable v8::Persistent<v8::Object> m_instance;
     57 };
     58 
     59 typedef RefPtr<V8ScriptInstance> ScriptInstance;
     60 typedef PassRefPtr<V8ScriptInstance> PassScriptInstance;
     61 
     62 } // namespace WebCore
     63 
     64 #endif // ScriptInstance_h
     65