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      1 /*
      2  * Copyright (C) 2007-2009 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 V8PersistentValueVector_h
     32 #define V8PersistentValueVector_h
     33 
     34 #include "wtf/Vector.h"
     35 #include <v8-util.h>
     36 #include <v8.h>
     37 
     38 namespace WebCore {
     39 
     40 class WTFVectorPersistentValueVectorTraits {
     41 public:
     42     typedef Vector<v8::PersistentContainerValue> Impl;
     43     static void Append(Impl* impl, v8::PersistentContainerValue value)
     44     {
     45         impl->append(value);
     46     }
     47     static bool IsEmpty(const Impl* impl)
     48     {
     49         return impl->isEmpty();
     50     }
     51     static size_t Size(const Impl* impl)
     52     {
     53         return impl->size();
     54     }
     55     static v8::PersistentContainerValue Get(const Impl* impl, size_t i)
     56     {
     57         return (i < impl->size()) ? impl->at(i) : v8::kPersistentContainerNotFound;
     58     }
     59     static void ReserveCapacity(Impl* impl, size_t capacity)
     60     {
     61         impl->reserveCapacity(capacity);
     62     }
     63     static void Clear(Impl* impl)
     64     {
     65         impl->clear();
     66     }
     67 };
     68 
     69 template<class ValueType>
     70 class V8PersistentValueVector : public v8::PersistentValueVector<ValueType, WTFVectorPersistentValueVectorTraits> {
     71 public:
     72     explicit V8PersistentValueVector(v8::Isolate* isolate) : v8::PersistentValueVector<ValueType, WTFVectorPersistentValueVectorTraits>(isolate) { }
     73 };
     74 
     75 } // namespace WebCore
     76 
     77 #endif // V8PersistentValueVector_h
     78