1/* 2 * Copyright (C) 2006, 2007, 2008, 2013 Apple Inc. All rights reserved. 3 * Copyright (c) 2011 Google Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of Apple Inc. ("Apple") nor the names of 15 * its contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#include "config.h" 31#include "ScriptValue.h" 32 33#include "APICast.h" 34#include "InspectorValues.h" 35#include "JSLock.h" 36#include "StructureInlines.h" 37 38using namespace JSC; 39using namespace Inspector; 40 41namespace Deprecated { 42 43ScriptValue::~ScriptValue() 44{ 45} 46 47bool ScriptValue::getString(ExecState* scriptState, String& result) const 48{ 49 if (!m_value) 50 return false; 51 JSLockHolder lock(scriptState); 52 if (!m_value.get().getString(scriptState, result)) 53 return false; 54 return true; 55} 56 57String ScriptValue::toString(ExecState* scriptState) const 58{ 59 String result = m_value.get().toString(scriptState)->value(scriptState); 60 // Handle the case where an exception is thrown as part of invoking toString on the object. 61 if (scriptState->hadException()) 62 scriptState->clearException(); 63 return result; 64} 65 66bool ScriptValue::isEqual(ExecState* scriptState, const ScriptValue& anotherValue) const 67{ 68 if (hasNoValue()) 69 return anotherValue.hasNoValue(); 70 return JSValueIsEqual(toRef(scriptState), toRef(scriptState, jsValue()), toRef(scriptState, anotherValue.jsValue()), nullptr); 71} 72 73bool ScriptValue::isNull() const 74{ 75 if (!m_value) 76 return false; 77 return m_value.get().isNull(); 78} 79 80bool ScriptValue::isUndefined() const 81{ 82 if (!m_value) 83 return false; 84 return m_value.get().isUndefined(); 85} 86 87bool ScriptValue::isObject() const 88{ 89 if (!m_value) 90 return false; 91 return m_value.get().isObject(); 92} 93 94bool ScriptValue::isFunction() const 95{ 96 CallData callData; 97 return getCallData(m_value.get(), callData) != CallTypeNone; 98} 99 100#if ENABLE(INSPECTOR) 101static PassRefPtr<InspectorValue> jsToInspectorValue(ExecState* scriptState, JSValue value, int maxDepth) 102{ 103 if (!value) { 104 ASSERT_NOT_REACHED(); 105 return nullptr; 106 } 107 108 if (!maxDepth) 109 return nullptr; 110 111 maxDepth--; 112 113 if (value.isNull() || value.isUndefined()) 114 return InspectorValue::null(); 115 if (value.isBoolean()) 116 return InspectorBasicValue::create(value.asBoolean()); 117 if (value.isNumber()) 118 return InspectorBasicValue::create(value.asNumber()); 119 if (value.isString()) 120 return InspectorString::create(value.getString(scriptState)); 121 122 if (value.isObject()) { 123 if (isJSArray(value)) { 124 RefPtr<InspectorArray> inspectorArray = InspectorArray::create(); 125 JSArray* array = asArray(value); 126 unsigned length = array->length(); 127 for (unsigned i = 0; i < length; i++) { 128 JSValue element = array->getIndex(scriptState, i); 129 RefPtr<InspectorValue> elementValue = jsToInspectorValue(scriptState, element, maxDepth); 130 if (!elementValue) 131 return nullptr; 132 inspectorArray->pushValue(elementValue); 133 } 134 return inspectorArray; 135 } 136 RefPtr<InspectorObject> inspectorObject = InspectorObject::create(); 137 JSObject* object = value.getObject(); 138 PropertyNameArray propertyNames(scriptState); 139 object->methodTable()->getOwnPropertyNames(object, scriptState, propertyNames, ExcludeDontEnumProperties); 140 for (size_t i = 0; i < propertyNames.size(); i++) { 141 const Identifier& name = propertyNames[i]; 142 JSValue propertyValue = object->get(scriptState, name); 143 RefPtr<InspectorValue> inspectorValue = jsToInspectorValue(scriptState, propertyValue, maxDepth); 144 if (!inspectorValue) 145 return nullptr; 146 inspectorObject->setValue(name.string(), inspectorValue); 147 } 148 return inspectorObject; 149 } 150 151 ASSERT_NOT_REACHED(); 152 return nullptr; 153} 154 155PassRefPtr<InspectorValue> ScriptValue::toInspectorValue(ExecState* scriptState) const 156{ 157 JSLockHolder holder(scriptState); 158 return jsToInspectorValue(scriptState, m_value.get(), InspectorValue::maxDepth); 159} 160#endif // ENABLE(INSPECTOR) 161 162} // namespace Deprecated 163