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 "ArrayValue.h" 28 29#include "Dictionary.h" 30#include <runtime/JSArray.h> 31 32using namespace JSC; 33 34namespace WebCore { 35 36ArrayValue::ArrayValue() 37 : m_exec(0) 38{ 39} 40 41ArrayValue::ArrayValue(JSC::ExecState* exec, JSC::JSValue value) 42 : m_exec(exec) 43{ 44 if (!value.isUndefinedOrNull() && isJSArray(value)) 45 m_value = value; 46} 47 48ArrayValue& ArrayValue::operator=(const ArrayValue& other) 49{ 50 m_exec = other.m_exec; 51 m_value = other.m_value; 52 return *this; 53} 54 55bool ArrayValue::isUndefinedOrNull() const 56{ 57 return m_value.isEmpty() || m_value.isUndefinedOrNull(); 58} 59 60bool ArrayValue::length(size_t& length) const 61{ 62 if (isUndefinedOrNull()) 63 return false; 64 65 JSArray* array = asArray(m_value); 66 length = array->length(); 67 return true; 68} 69 70bool ArrayValue::get(size_t index, Dictionary& value) const 71{ 72 if (isUndefinedOrNull()) 73 return false; 74 75 JSValue indexedValue = asArray(m_value)->getIndex(m_exec, index); 76 if (indexedValue.isUndefinedOrNull() || !indexedValue.isObject()) 77 return false; 78 79 value = Dictionary(m_exec, indexedValue); 80 return true; 81} 82 83} // namespace WebCore 84