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      1 /*
      2  * Copyright (C) 2012 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
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "bindings/v8/ArrayValue.h"
     28 
     29 #include "bindings/v8/Dictionary.h"
     30 #include "bindings/v8/V8Binding.h"
     31 
     32 namespace WebCore {
     33 
     34 ArrayValue& ArrayValue::operator=(const ArrayValue& other)
     35 {
     36     m_array = other.m_array;
     37     m_isolate = other.m_isolate;
     38     return *this;
     39 }
     40 
     41 bool ArrayValue::isUndefinedOrNull() const
     42 {
     43     return m_array.IsEmpty() || WebCore::isUndefinedOrNull(m_array);
     44 }
     45 
     46 bool ArrayValue::length(size_t& length) const
     47 {
     48     if (isUndefinedOrNull())
     49         return false;
     50 
     51     length = m_array->Length();
     52     return true;
     53 }
     54 
     55 bool ArrayValue::get(size_t index, Dictionary& value) const
     56 {
     57     if (isUndefinedOrNull())
     58         return false;
     59 
     60     if (index >= m_array->Length())
     61         return false;
     62 
     63     ASSERT(m_isolate);
     64     ASSERT(m_isolate == v8::Isolate::GetCurrent());
     65     v8::Local<v8::Value> indexedValue = m_array->Get(v8::Integer::NewFromUnsigned(index, m_isolate));
     66     if (indexedValue.IsEmpty() || !indexedValue->IsObject())
     67         return false;
     68 
     69     value = Dictionary(indexedValue, m_isolate);
     70     return true;
     71 }
     72 
     73 } // namespace WebCore
     74