| 1 | /**************************************************************************** | 
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| 2 | ** | 
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| 3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). | 
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| 4 | ** Contact: Qt Software Information (qt-info@nokia.com) | 
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| 5 | ** | 
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| 6 | ** This file is part of the QtScript module of the Qt Toolkit. | 
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| 7 | ** | 
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| 8 | ** $QT_BEGIN_LICENSE:LGPL$ | 
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| 9 | ** Commercial Usage | 
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| 10 | ** Licensees holding valid Qt Commercial licenses may use this file in | 
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| 11 | ** accordance with the Qt Commercial License Agreement provided with the | 
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| 12 | ** Software or, alternatively, in accordance with the terms contained in | 
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| 13 | ** a written agreement between you and Nokia. | 
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| 14 | ** | 
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| 15 | ** GNU Lesser General Public License Usage | 
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| 16 | ** Alternatively, this file may be used under the terms of the GNU Lesser | 
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| 17 | ** General Public License version 2.1 as published by the Free Software | 
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| 18 | ** Foundation and appearing in the file LICENSE.LGPL included in the | 
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| 19 | ** packaging of this file.  Please review the following information to | 
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| 20 | ** ensure the GNU Lesser General Public License version 2.1 requirements | 
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| 21 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. | 
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| 22 | ** | 
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| 23 | ** In addition, as a special exception, Nokia gives you certain | 
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| 24 | ** additional rights. These rights are described in the Nokia Qt LGPL | 
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| 25 | ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this | 
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| 26 | ** package. | 
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| 27 | ** | 
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| 28 | ** GNU General Public License Usage | 
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| 29 | ** Alternatively, this file may be used under the terms of the GNU | 
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| 30 | ** General Public License version 3.0 as published by the Free Software | 
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the | 
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| 32 | ** packaging of this file.  Please review the following information to | 
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be | 
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html. | 
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| 35 | ** | 
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| 36 | ** If you are unsure which license is appropriate for your use, please | 
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| 37 | ** contact the sales department at qt-sales@nokia.com. | 
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| 38 | ** $QT_END_LICENSE$ | 
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| 39 | ** | 
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| 40 | ****************************************************************************/ | 
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| 41 |  | 
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| 42 | #ifndef QSCRIPTENGINE_P_H | 
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| 43 | #define QSCRIPTENGINE_P_H | 
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| 44 |  | 
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| 45 | #include "qscriptenginefwd_p.h" | 
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| 46 |  | 
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| 47 | #ifndef QT_NO_SCRIPT | 
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| 48 |  | 
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| 49 | #include <QtCore/QDateTime> | 
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| 50 | #include <QtCore/QMutex> | 
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| 51 | #include <QtCore/QLinkedList> | 
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| 52 | #include <QtCore/QString> | 
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| 53 | #include <QtCore/QVector> | 
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| 54 | #include <QtCore/QHash> | 
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| 55 | #include <QtCore/qnumeric.h> | 
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| 56 |  | 
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| 57 | #include "qscriptengine.h" | 
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| 58 | #include "qscriptnameid_p.h" | 
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| 59 | #include "qscriptobjectfwd_p.h" | 
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| 60 | #include "qscriptrepository_p.h" | 
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| 61 | #include "qscriptgc_p.h" | 
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| 62 | #include "qscriptecmaarray_p.h" | 
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| 63 | #include "qscriptecmadate_p.h" | 
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| 64 | #include "qscriptecmaobject_p.h" | 
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| 65 | #include "qscriptecmaboolean_p.h" | 
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| 66 | #include "qscriptecmanumber_p.h" | 
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| 67 | #include "qscriptecmastring_p.h" | 
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| 68 | #include "qscriptecmafunction_p.h" | 
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| 69 | #include "qscriptextvariant_p.h" | 
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| 70 | #include "qscriptextqobject_p.h" | 
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| 71 | #include "qscriptvalue_p.h" | 
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| 72 | #include "qscriptcontextfwd_p.h" | 
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| 73 |  | 
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| 74 | #include <math.h> | 
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| 75 |  | 
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| 76 | QT_BEGIN_NAMESPACE | 
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| 77 |  | 
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| 78 | // | 
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| 79 | //  W A R N I N G | 
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| 80 | //  ------------- | 
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| 81 | // | 
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| 82 | // This file is not part of the Qt API.  It exists purely as an | 
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| 83 | // implementation detail.  This header file may change from version to | 
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| 84 | // version without notice, or even be removed. | 
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| 85 | // | 
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| 86 | // We mean it. | 
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| 87 | // | 
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| 88 |  | 
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| 89 | namespace QScript { | 
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| 90 |  | 
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| 91 | class ArgumentsObjectData: public QScriptObjectData | 
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| 92 | { | 
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| 93 | public: | 
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| 94 | ArgumentsObjectData() : length(0) {} | 
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| 95 | virtual ~ArgumentsObjectData() {} | 
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| 96 |  | 
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| 97 | public: // attributes | 
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| 98 | QScriptValueImpl activation; | 
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| 99 | uint length; | 
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| 100 | }; | 
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| 101 |  | 
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| 102 | } // namespace QScript | 
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| 103 |  | 
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| 104 | inline QScriptEnginePrivate *QScriptEnginePrivate::get(QScriptEngine *q) | 
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| 105 | { | 
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| 106 | if (q) | 
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| 107 | return q->d_func(); | 
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| 108 | return 0; | 
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| 109 | } | 
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| 110 |  | 
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| 111 | inline const QScriptEnginePrivate *QScriptEnginePrivate::get(const QScriptEngine *q) | 
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| 112 | { | 
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| 113 | if (q) | 
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| 114 | return q->d_func(); | 
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| 115 | return 0; | 
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| 116 | } | 
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| 117 |  | 
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| 118 | inline QScriptEngine *QScriptEnginePrivate::get(QScriptEnginePrivate *d) | 
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| 119 | { | 
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| 120 | return d->q_func(); | 
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| 121 | } | 
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| 122 |  | 
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| 123 | inline QString QScriptEnginePrivate::toString(QScriptNameIdImpl *id) | 
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| 124 | { | 
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| 125 | if (! id) | 
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| 126 | return QString(); | 
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| 127 |  | 
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| 128 | return id->s; | 
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| 129 | } | 
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| 130 |  | 
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| 131 | inline QString QScriptEnginePrivate::memberName(const QScript::Member &member) const | 
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| 132 | { | 
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| 133 | return toString(member.nameId()); | 
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| 134 | } | 
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| 135 |  | 
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| 136 | inline void QScriptEnginePrivate::newReference(QScriptValueImpl *o, int mode) | 
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| 137 | { | 
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| 138 | Q_ASSERT(o); | 
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| 139 | o->m_type = QScript::ReferenceType; | 
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| 140 | o->m_int_value = (mode); | 
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| 141 | } | 
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| 142 |  | 
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| 143 | inline void QScriptEnginePrivate::newActivation(QScriptValueImpl *o) | 
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| 144 | { | 
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| 145 | Q_ASSERT(o); | 
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| 146 | newObject(o, nullValue(), m_class_activation); | 
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| 147 | } | 
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| 148 |  | 
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| 149 | inline void QScriptEnginePrivate::newPointer(QScriptValueImpl *o, void *ptr) | 
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| 150 | { | 
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| 151 | Q_ASSERT(o); | 
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| 152 | o->m_type = QScript::PointerType; | 
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| 153 | o->m_ptr_value = ptr; | 
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| 154 | } | 
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| 155 |  | 
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| 156 | inline void QScriptEnginePrivate::newInteger(QScriptValueImpl *o, int i) | 
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| 157 | { | 
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| 158 | Q_ASSERT(o); | 
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| 159 | o->m_type = QScript::IntegerType; | 
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| 160 | o->m_int_value = (i); | 
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| 161 | } | 
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| 162 |  | 
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| 163 | inline void QScriptEnginePrivate::newNameId(QScriptValueImpl *o, const QString &s) | 
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| 164 | { | 
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| 165 | Q_ASSERT(o); | 
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| 166 | o->m_type = QScript::StringType; | 
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| 167 | o->m_string_value = (nameId(s, /*persistent=*/false)); | 
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| 168 | } | 
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| 169 |  | 
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| 170 | inline void QScriptEnginePrivate::newString(QScriptValueImpl *o, const QString &s) | 
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| 171 | { | 
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| 172 | Q_ASSERT(o); | 
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| 173 | o->m_type = QScript::StringType; | 
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| 174 | QScriptNameIdImpl *entry = new QScriptNameIdImpl(s); | 
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| 175 | m_tempStringRepository.append(entry); | 
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| 176 | o->m_string_value = (entry); | 
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| 177 | m_newAllocatedTempStringRepositoryChars += s.length(); | 
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| 178 | } | 
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| 179 |  | 
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| 180 | inline void QScriptEnginePrivate::newNameId(QScriptValueImpl *o, QScriptNameIdImpl *id) | 
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| 181 | { | 
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| 182 | Q_ASSERT(o); | 
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| 183 | o->m_type = QScript::StringType; | 
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| 184 | o->m_string_value = (id); | 
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| 185 | } | 
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| 186 |  | 
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| 187 | inline const QScript::IdTable *QScriptEnginePrivate::idTable() const | 
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| 188 | { | 
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| 189 | return &m_id_table; | 
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| 190 | } | 
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| 191 |  | 
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| 192 | inline qsreal QScriptEnginePrivate::convertToNativeDouble(const QScriptValueImpl &value) | 
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| 193 | { | 
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| 194 | Q_ASSERT (value.isValid()); | 
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| 195 |  | 
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| 196 | if (value.isNumber()) | 
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| 197 | return value.m_number_value; | 
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| 198 |  | 
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| 199 | return convertToNativeDouble_helper(value); | 
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| 200 | } | 
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| 201 |  | 
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| 202 | inline qint32 QScriptEnginePrivate::convertToNativeInt32(const QScriptValueImpl &value) | 
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| 203 | { | 
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| 204 | Q_ASSERT (value.isValid()); | 
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| 205 |  | 
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| 206 | return toInt32 (convertToNativeDouble(value)); | 
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| 207 | } | 
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| 208 |  | 
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| 209 |  | 
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| 210 | inline bool QScriptEnginePrivate::convertToNativeBoolean(const QScriptValueImpl &value) | 
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| 211 | { | 
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| 212 | Q_ASSERT (value.isValid()); | 
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| 213 |  | 
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| 214 | if (value.isBoolean()) | 
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| 215 | return value.m_bool_value; | 
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| 216 |  | 
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| 217 | return convertToNativeBoolean_helper(value); | 
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| 218 | } | 
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| 219 |  | 
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| 220 | inline QString QScriptEnginePrivate::convertToNativeString(const QScriptValueImpl &value) | 
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| 221 | { | 
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| 222 | Q_ASSERT (value.isValid()); | 
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| 223 |  | 
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| 224 | if (value.isString()) | 
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| 225 | return value.m_string_value->s; | 
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| 226 |  | 
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| 227 | return convertToNativeString_helper(value); | 
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| 228 | } | 
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| 229 |  | 
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| 230 | inline qsreal QScriptEnginePrivate::toInteger(qsreal n) | 
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| 231 | { | 
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| 232 | if (qIsNaN(n)) | 
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| 233 | return 0; | 
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| 234 |  | 
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| 235 | if (n == 0 || qIsInf(n)) | 
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| 236 | return n; | 
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| 237 |  | 
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| 238 | int sign = n < 0 ? -1 : 1; | 
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| 239 | return sign * ::floor(::fabs(n)); | 
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| 240 | } | 
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| 241 |  | 
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| 242 | inline qint32 QScriptEnginePrivate::toInt32(qsreal n) | 
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| 243 | { | 
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| 244 | if (qIsNaN(n) || qIsInf(n) || (n == 0)) | 
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| 245 | return 0; | 
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| 246 |  | 
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| 247 | double sign = (n < 0) ? -1.0 : 1.0; | 
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| 248 | qsreal abs_n = fabs(n); | 
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| 249 |  | 
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| 250 | n = ::fmod(sign * ::floor(abs_n), D32); | 
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| 251 | const double D31 = D32 / 2.0; | 
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| 252 |  | 
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| 253 | if (sign == -1 && n < -D31) | 
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| 254 | n += D32; | 
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| 255 |  | 
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| 256 | else if (sign != -1 && n >= D31) | 
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| 257 | n -= D32; | 
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| 258 |  | 
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| 259 | return qint32 (n); | 
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| 260 | } | 
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| 261 |  | 
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| 262 | inline quint32 QScriptEnginePrivate::toUint32(qsreal n) | 
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| 263 | { | 
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| 264 | if (qIsNaN(n) || qIsInf(n) || (n == 0)) | 
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| 265 | return 0; | 
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| 266 |  | 
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| 267 | double sign = (n < 0) ? -1.0 : 1.0; | 
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| 268 | qsreal abs_n = fabs(n); | 
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| 269 |  | 
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| 270 | n = ::fmod(sign * ::floor(abs_n), D32); | 
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| 271 |  | 
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| 272 | if (n < 0) | 
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| 273 | n += D32; | 
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| 274 |  | 
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| 275 | return quint32 (n); | 
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| 276 | } | 
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| 277 |  | 
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| 278 | inline quint16 QScriptEnginePrivate::toUint16(qsreal n) | 
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| 279 | { | 
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| 280 | if (qIsNaN(n) || qIsInf(n) || (n == 0)) | 
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| 281 | return 0; | 
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| 282 |  | 
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| 283 | double sign = (n < 0) ? -1.0 : 1.0; | 
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| 284 | qsreal abs_n = fabs(n); | 
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| 285 |  | 
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| 286 | n = ::fmod(sign * ::floor(abs_n), D16); | 
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| 287 |  | 
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| 288 | if (n < 0) | 
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| 289 | n += D16; | 
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| 290 |  | 
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| 291 | return quint16 (n); | 
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| 292 | } | 
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| 293 |  | 
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| 294 | inline QScript::AST::Node *QScriptEnginePrivate::abstractSyntaxTree() const | 
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| 295 | { | 
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| 296 | return m_abstractSyntaxTree; | 
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| 297 | } | 
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| 298 |  | 
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| 299 | inline QScript::MemoryPool *QScriptEnginePrivate::nodePool() | 
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| 300 | { | 
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| 301 | return m_pool; | 
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| 302 | } | 
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| 303 |  | 
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| 304 | inline void QScriptEnginePrivate::setNodePool(QScript::MemoryPool *pool) | 
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| 305 | { | 
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| 306 | m_pool = pool; | 
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| 307 | } | 
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| 308 |  | 
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| 309 | inline QScript::Lexer *QScriptEnginePrivate::lexer() | 
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| 310 | { | 
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| 311 | return m_lexer; | 
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| 312 | } | 
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| 313 |  | 
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| 314 | inline void QScriptEnginePrivate::setLexer(QScript::Lexer *lexer) | 
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| 315 | { | 
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| 316 | m_lexer = lexer; | 
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| 317 | } | 
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| 318 |  | 
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| 319 | inline QScriptObject *QScriptEnginePrivate::allocObject() | 
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| 320 | { | 
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| 321 | return objectAllocator(m_objectGeneration); | 
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| 322 | } | 
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| 323 |  | 
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| 324 | inline QScriptContextPrivate *QScriptEnginePrivate::currentContext() const | 
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| 325 | { | 
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| 326 | return m_context; | 
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| 327 | } | 
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| 328 |  | 
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| 329 | inline QScriptContextPrivate *QScriptEnginePrivate::pushContext() | 
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| 330 | { | 
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| 331 | QScriptContext *context = m_frameRepository.get(); | 
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| 332 | QScriptContextPrivate *ctx_p = QScriptContextPrivate::get(context); | 
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| 333 | ctx_p->init(m_context); | 
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| 334 | m_context = ctx_p; | 
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| 335 | #ifndef Q_SCRIPT_NO_EVENT_NOTIFY | 
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| 336 | notifyContextPush(); | 
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| 337 | #endif | 
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| 338 | return m_context; | 
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| 339 | } | 
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| 340 |  | 
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| 341 | inline void QScriptEnginePrivate::popContext() | 
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| 342 | { | 
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| 343 | Q_ASSERT(m_context != 0); | 
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| 344 | #ifndef Q_SCRIPT_NO_EVENT_NOTIFY | 
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| 345 | notifyContextPop(); | 
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| 346 | #endif | 
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| 347 | QScriptContextPrivate *context = m_context; | 
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| 348 | m_context = context->parentContext(); | 
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| 349 | if (m_context) { | 
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| 350 | QScriptContextPrivate *p1 = m_context; | 
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| 351 | QScriptContextPrivate *p2 = context; | 
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| 352 | if ((p1->m_state != QScriptContext::ExceptionState) | 
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| 353 | || (p2->m_state == QScriptContext::ExceptionState)) { | 
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| 354 | // propagate the state | 
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| 355 | p1->m_result = p2->m_result; | 
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| 356 | p1->m_state = p2->m_state; | 
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| 357 | // only update errorLineNumber if there actually was an exception | 
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| 358 | if (p2->m_state == QScriptContext::ExceptionState) { | 
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| 359 | if (p2->errorLineNumber != -1) | 
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| 360 | p1->errorLineNumber = p2->errorLineNumber; | 
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| 361 | else | 
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| 362 | p1->errorLineNumber = p1->currentLine; | 
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| 363 | } | 
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| 364 | } | 
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| 365 | } | 
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| 366 | m_frameRepository.release(QScriptContextPrivate::get(context)); | 
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| 367 | } | 
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| 368 |  | 
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| 369 | inline void QScriptEnginePrivate::maybeGC() | 
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| 370 | { | 
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| 371 | if (objectAllocator.blocked()) | 
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| 372 | return; | 
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| 373 |  | 
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| 374 | bool do_string_gc = ((m_stringRepository.size() - m_oldStringRepositorySize) > 256) | 
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| 375 | || (m_newAllocatedStringRepositoryChars > 0x800000); | 
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| 376 | do_string_gc |= ((m_tempStringRepository.size() - m_oldTempStringRepositorySize) > 1024) | 
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| 377 | || (m_newAllocatedTempStringRepositoryChars > 0x800000); | 
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| 378 |  | 
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| 379 | if (! do_string_gc && ! objectAllocator.poll()) | 
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| 380 | return; | 
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| 381 |  | 
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| 382 | maybeGC_helper(do_string_gc); | 
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| 383 | } | 
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| 384 |  | 
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| 385 | inline void QScriptEnginePrivate::adjustBytesAllocated(int bytes) | 
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| 386 | { | 
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| 387 | objectAllocator.adjustBytesAllocated(bytes); | 
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| 388 | } | 
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| 389 |  | 
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| 390 | inline bool QScriptEnginePrivate::blockGC(bool block) | 
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| 391 | { | 
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| 392 | return objectAllocator.blockGC(block); | 
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| 393 | } | 
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| 394 |  | 
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| 395 | inline void QScriptEnginePrivate::markString(QScriptNameIdImpl *id, int /*generation*/) | 
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| 396 | { | 
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| 397 | id->used = true; | 
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| 398 | } | 
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| 399 |  | 
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| 400 | inline QScriptValueImpl QScriptEnginePrivate::createFunction(QScriptFunction *fun) | 
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| 401 | { | 
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| 402 | QScriptValueImpl v; | 
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| 403 | newFunction(&v, fun); | 
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| 404 | return v; | 
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| 405 | } | 
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| 406 |  | 
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| 407 | inline QScriptValueImpl QScriptEnginePrivate::newArray(const QScript::Array &value) | 
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| 408 | { | 
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| 409 | QScriptValueImpl v; | 
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| 410 | newArray(&v, value); | 
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| 411 | return v; | 
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| 412 | } | 
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| 413 |  | 
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| 414 | inline QScriptValueImpl QScriptEnginePrivate::newArray(uint length) | 
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| 415 | { | 
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| 416 | QScriptValueImpl v; | 
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| 417 | QScript::Array a(this); | 
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| 418 | a.resize(length); | 
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| 419 | newArray(&v, a); | 
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| 420 | return v; | 
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| 421 | } | 
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| 422 |  | 
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| 423 | inline QScriptClassInfo *QScriptEnginePrivate::registerClass(const QString &pname, int type) | 
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| 424 | { | 
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| 425 | if (type == -1) | 
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| 426 | type = ++m_class_prev_id; | 
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| 427 |  | 
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| 428 | QScriptClassInfo *oc = new QScriptClassInfo(this, QScriptClassInfo::Type(type), pname); | 
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| 429 | m_allocated_classes.append(oc); | 
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| 430 |  | 
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| 431 | return oc; | 
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| 432 | } | 
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| 433 |  | 
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| 434 | inline QScriptClassInfo *QScriptEnginePrivate::registerClass(const QString &name) | 
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| 435 | { | 
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| 436 | return registerClass(name, -1); | 
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| 437 | } | 
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| 438 |  | 
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| 439 | inline QScriptValueImpl QScriptEnginePrivate::createFunction(QScriptInternalFunctionSignature fun, | 
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| 440 | int length, QScriptClassInfo *classInfo, const QString &name) | 
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| 441 | { | 
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| 442 | return createFunction(new QScript::C2Function(fun, length, classInfo, name)); | 
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| 443 | } | 
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| 444 |  | 
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| 445 | inline void QScriptEnginePrivate::newFunction(QScriptValueImpl *o, QScriptFunction *function) | 
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| 446 | { | 
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| 447 | QScriptValueImpl proto; | 
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| 448 | if (functionConstructor) | 
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| 449 | proto = functionConstructor->publicPrototype; | 
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| 450 | else { | 
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| 451 | // creating the Function prototype object | 
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| 452 | Q_ASSERT(objectConstructor); | 
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| 453 | proto = objectConstructor->publicPrototype; | 
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| 454 | } | 
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| 455 | newObject(o, proto, m_class_function); | 
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| 456 | o->setObjectData(function); | 
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| 457 | } | 
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| 458 |  | 
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| 459 | inline void QScriptEnginePrivate::newConstructor(QScriptValueImpl *ctor, | 
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| 460 | QScriptFunction *function, | 
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| 461 | QScriptValueImpl &proto) | 
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| 462 | { | 
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| 463 | newFunction(ctor, function); | 
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| 464 | ctor->setProperty(m_id_table.id_prototype, proto, | 
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| 465 | QScriptValue::Undeletable | 
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| 466 | | QScriptValue::ReadOnly | 
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| 467 | | QScriptValue::SkipInEnumeration); | 
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| 468 | proto.setProperty(m_id_table.id_constructor, *ctor, | 
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| 469 | QScriptValue::Undeletable | 
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| 470 | | QScriptValue::SkipInEnumeration); | 
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| 471 | } | 
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| 472 |  | 
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| 473 | inline void QScriptEnginePrivate::newArguments(QScriptValueImpl *object, | 
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| 474 | const QScriptValueImpl &activation, | 
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| 475 | uint length, | 
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| 476 | const QScriptValueImpl &callee) | 
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| 477 | { | 
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| 478 | QScript::ArgumentsObjectData *data = new QScript::ArgumentsObjectData(); | 
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| 479 | data->activation = activation; | 
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| 480 | data->length = length; | 
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| 481 | newObject(object, m_class_arguments); | 
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| 482 | object->setObjectData(data); | 
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| 483 | object->setProperty(m_id_table.id_callee, callee, | 
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| 484 | QScriptValue::SkipInEnumeration); | 
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| 485 | object->setProperty(m_id_table.id_length, QScriptValueImpl(length), | 
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| 486 | QScriptValue::SkipInEnumeration); | 
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| 487 | } | 
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| 488 |  | 
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| 489 | inline QScriptFunction *QScriptEnginePrivate::convertToNativeFunction(const QScriptValueImpl &object) | 
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| 490 | { | 
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| 491 | if (object.isFunction()) | 
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| 492 | return static_cast<QScriptFunction*> (object.objectData()); | 
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| 493 | return 0; | 
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| 494 | } | 
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| 495 |  | 
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| 496 | inline QScriptValue QScriptEnginePrivate::toPublic(const QScriptValueImpl &value) | 
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| 497 | { | 
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| 498 | if (!value.isValid()) | 
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| 499 | return QScriptValue(); | 
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| 500 |  | 
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| 501 | QScriptValuePrivate *p = registerValue(value); | 
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| 502 | QScriptValue v; | 
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| 503 | QScriptValuePrivate::init(v, p); | 
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| 504 | return v; | 
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| 505 | } | 
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| 506 |  | 
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| 507 | inline QScriptValueImpl QScriptEnginePrivate::toImpl(const QScriptValue &value) | 
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| 508 | { | 
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| 509 | QScriptValuePrivate *p = QScriptValuePrivate::get(value); | 
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| 510 | if (!p) | 
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| 511 | return QScriptValueImpl(); | 
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| 512 | if (p->value.type() == QScript::LazyStringType) | 
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| 513 | return toImpl_helper(value); | 
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| 514 | return p->value; | 
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| 515 | } | 
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| 516 |  | 
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| 517 | inline QScriptValueImplList QScriptEnginePrivate::toImplList(const QScriptValueList &lst) | 
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| 518 | { | 
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| 519 | QScriptValueImplList result; | 
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| 520 | QScriptValueList::const_iterator it; | 
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| 521 | for (it = lst.constBegin(); it != lst.constEnd(); ++it) | 
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| 522 | result.append(toImpl(*it)); | 
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| 523 | return result; | 
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| 524 | } | 
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| 525 |  | 
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| 526 | inline QScriptValueImpl QScriptEnginePrivate::toObject(const QScriptValueImpl &value) | 
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| 527 | { | 
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| 528 | if (value.isObject() || !value.isValid()) | 
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| 529 | return value; | 
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| 530 | return toObject_helper(value); | 
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| 531 | } | 
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| 532 |  | 
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| 533 | inline QScriptValueImpl QScriptEnginePrivate::toPrimitive(const QScriptValueImpl &object, | 
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| 534 | QScriptValueImpl::TypeHint hint) | 
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| 535 | { | 
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| 536 | Q_ASSERT(object.isValid()); | 
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| 537 |  | 
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| 538 | if (! object.isObject()) | 
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| 539 | return object; | 
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| 540 |  | 
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| 541 | return toPrimitive_helper(object, hint); | 
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| 542 | } | 
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| 543 |  | 
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| 544 | inline QDateTime QScriptEnginePrivate::toDateTime(const QScriptValueImpl &value) const | 
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| 545 | { | 
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| 546 | return dateConstructor->toDateTime(value); | 
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| 547 | } | 
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| 548 |  | 
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| 549 | inline void QScriptEnginePrivate::newArray(QScriptValueImpl *object, const QScript::Array &value) | 
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| 550 | { | 
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| 551 | arrayConstructor->newArray(object, value); | 
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| 552 | } | 
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| 553 |  | 
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| 554 | inline void QScriptEnginePrivate::newObject(QScriptValueImpl *o, const QScriptValueImpl &proto, | 
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| 555 | QScriptClassInfo *oc) | 
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| 556 | { | 
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| 557 | Q_ASSERT(o != 0); | 
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| 558 |  | 
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| 559 | QScriptObject *od = allocObject(); | 
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| 560 | od->reset(); | 
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| 561 | od->m_id = ++m_next_object_id; | 
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| 562 | if (proto.isValid()) | 
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| 563 | od->m_prototype = proto; | 
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| 564 | else { | 
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| 565 | Q_ASSERT(objectConstructor); | 
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| 566 | od->m_prototype = objectConstructor->publicPrototype; | 
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| 567 | } | 
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| 568 |  | 
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| 569 | o->m_type = QScript::ObjectType; | 
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| 570 | od->m_class = (oc ? oc : m_class_object); | 
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| 571 | o->m_object_value = od; | 
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| 572 | } | 
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| 573 |  | 
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| 574 | inline void QScriptEnginePrivate::newObject(QScriptValueImpl *o, QScriptClassInfo *oc) | 
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| 575 | { | 
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| 576 | newObject(o, objectConstructor->publicPrototype, oc); | 
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| 577 | } | 
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| 578 |  | 
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| 579 | inline QScriptValueImpl QScriptEnginePrivate::newObject() | 
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| 580 | { | 
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| 581 | QScriptValueImpl v; | 
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| 582 | newObject(&v); | 
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| 583 | return v; | 
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| 584 | } | 
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| 585 |  | 
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| 586 | inline void QScriptEnginePrivate::newVariant(QScriptValueImpl *out, | 
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| 587 | const QVariant &value, | 
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| 588 | bool setDefaultPrototype) | 
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| 589 | { | 
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| 590 | Q_ASSERT(variantConstructor != 0); | 
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| 591 | variantConstructor->newVariant(out, value); | 
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| 592 | if (setDefaultPrototype) { | 
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| 593 | QScriptValueImpl proto = defaultPrototype(value.userType()); | 
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| 594 | if (proto.isValid()) | 
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| 595 | out->setPrototype(proto); | 
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| 596 | } | 
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| 597 | } | 
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| 598 |  | 
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| 599 | #ifndef QT_NO_QOBJECT | 
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| 600 | #  ifndef Q_SCRIPT_NO_QMETAOBJECT_CACHE | 
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| 601 | inline QScriptMetaObject *QScriptEnginePrivate::cachedMetaObject(const QMetaObject *meta) | 
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| 602 | { | 
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| 603 | QScriptMetaObject *value = m_cachedMetaObjects.value(meta); | 
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| 604 | if (!value) { | 
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| 605 | value = new QScriptMetaObject; | 
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| 606 | m_cachedMetaObjects.insert(meta, value); | 
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| 607 | } | 
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| 608 | return value; | 
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| 609 | } | 
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| 610 | #  endif | 
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| 611 | #endif // !QT_NO_QOBJECT | 
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| 612 |  | 
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| 613 | inline QScriptNameIdImpl *QScriptEnginePrivate::nameId(const QString &str, bool persistent) | 
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| 614 | { | 
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| 615 | QScriptNameIdImpl *entry = toStringEntry(str); | 
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| 616 | if (! entry) | 
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| 617 | entry = insertStringEntry(str); | 
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| 618 |  | 
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| 619 | Q_ASSERT(entry->unique); | 
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| 620 |  | 
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| 621 | if (persistent) | 
|---|
| 622 | entry->persistent = true; | 
|---|
| 623 |  | 
|---|
| 624 | return entry; | 
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| 625 | } | 
|---|
| 626 |  | 
|---|
| 627 | inline QScriptNameIdImpl *QScriptEnginePrivate::intern(const QChar *u, int s) | 
|---|
| 628 | { | 
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| 629 | QString tmp(u, s); | 
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| 630 | return nameId(tmp, /*persistent=*/ true); | 
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| 631 | } | 
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| 632 |  | 
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| 633 | inline QScriptValueImpl QScriptEnginePrivate::valueFromVariant(const QVariant &v) | 
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| 634 | { | 
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| 635 | QScriptValueImpl result = create(v.userType(), v.data()); | 
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| 636 | Q_ASSERT(result.isValid()); | 
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| 637 | return result; | 
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| 638 | } | 
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| 639 |  | 
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| 640 | inline QScriptValueImpl QScriptEnginePrivate::undefinedValue() | 
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| 641 | { | 
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| 642 | return m_undefinedValue; | 
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| 643 | } | 
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| 644 |  | 
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| 645 | inline QScriptValueImpl QScriptEnginePrivate::nullValue() | 
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| 646 | { | 
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| 647 | return m_nullValue; | 
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| 648 | } | 
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| 649 |  | 
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| 650 | inline QScriptValueImpl QScriptEnginePrivate::defaultPrototype(int metaTypeId) const | 
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| 651 | { | 
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| 652 | QScriptCustomTypeInfo info = m_customTypes.value(metaTypeId); | 
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| 653 | return info.prototype; | 
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| 654 | } | 
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| 655 |  | 
|---|
| 656 | inline void QScriptEnginePrivate::setDefaultPrototype(int metaTypeId, const QScriptValueImpl &prototype) | 
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| 657 | { | 
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| 658 | QScriptCustomTypeInfo info = m_customTypes.value(metaTypeId); | 
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| 659 | info.prototype = prototype; | 
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| 660 | m_customTypes.insert(metaTypeId, info); | 
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| 661 | } | 
|---|
| 662 |  | 
|---|
| 663 | inline uint _q_scriptHash(const QString &key) | 
|---|
| 664 | { | 
|---|
| 665 | const QChar *p = key.unicode(); | 
|---|
| 666 | int n = qMin(key.size(), 128); | 
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| 667 | uint h = key.size(); | 
|---|
| 668 | uint g; | 
|---|
| 669 |  | 
|---|
| 670 | while (n--) { | 
|---|
| 671 | h = (h << 4) + (*p++).unicode(); | 
|---|
| 672 | if ((g = (h & 0xf0000000)) != 0) | 
|---|
| 673 | h ^= g >> 23; | 
|---|
| 674 | h &= ~g; | 
|---|
| 675 | } | 
|---|
| 676 | return h; | 
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| 677 | } | 
|---|
| 678 |  | 
|---|
| 679 | inline QScriptNameIdImpl *QScriptEnginePrivate::toStringEntry(const QString &s) | 
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| 680 | { | 
|---|
| 681 | uint h = _q_scriptHash(s) % m_string_hash_size; | 
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| 682 |  | 
|---|
| 683 | for (QScriptNameIdImpl *entry = m_string_hash_base[h]; entry && entry->h == h; entry = entry->next) { | 
|---|
| 684 | if (entry->s == s) | 
|---|
| 685 | return entry; | 
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| 686 | } | 
|---|
| 687 |  | 
|---|
| 688 | return 0; | 
|---|
| 689 | } | 
|---|
| 690 |  | 
|---|
| 691 | inline bool QScriptEnginePrivate::lessThan(const QScriptValueImpl &lhs, const QScriptValueImpl &rhs) | 
|---|
| 692 | { | 
|---|
| 693 | return QScriptContextPrivate::lt_cmp(lhs, rhs); | 
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| 694 | } | 
|---|
| 695 |  | 
|---|
| 696 | inline bool QScriptEnginePrivate::equals(const QScriptValueImpl &lhs, const QScriptValueImpl &rhs) | 
|---|
| 697 | { | 
|---|
| 698 | return QScriptContextPrivate::eq_cmp(lhs, rhs); | 
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| 699 | } | 
|---|
| 700 |  | 
|---|
| 701 | inline bool QScriptEnginePrivate::strictlyEquals(const QScriptValueImpl &lhs, const QScriptValueImpl &rhs) | 
|---|
| 702 | { | 
|---|
| 703 | return QScriptContextPrivate::strict_eq_cmp(lhs, rhs); | 
|---|
| 704 | } | 
|---|
| 705 |  | 
|---|
| 706 | inline void QScriptEnginePrivate::unregisterValue(QScriptValuePrivate *p) | 
|---|
| 707 | { | 
|---|
| 708 | QScriptValueImpl &v = p->value; | 
|---|
| 709 | Q_ASSERT(v.isValid()); | 
|---|
| 710 | if (v.isString()) { | 
|---|
| 711 | QScriptNameIdImpl *id = v.stringValue(); | 
|---|
| 712 | m_stringHandles.remove(id); | 
|---|
| 713 | } else if (v.isObject()) { | 
|---|
| 714 | QScriptObject *instance = v.objectValue(); | 
|---|
| 715 | m_objectHandles.remove(instance); | 
|---|
| 716 | } else { | 
|---|
| 717 | int i = m_otherHandles.indexOf(p); | 
|---|
| 718 | Q_ASSERT(i != -1); | 
|---|
| 719 | m_otherHandles.remove(i); | 
|---|
| 720 | } | 
|---|
| 721 | m_handleRepository.release(p); | 
|---|
| 722 | } | 
|---|
| 723 |  | 
|---|
| 724 | inline QScriptValueImpl QScriptEnginePrivate::globalObject() const | 
|---|
| 725 | { | 
|---|
| 726 | return m_globalObject; | 
|---|
| 727 | } | 
|---|
| 728 |  | 
|---|
| 729 | inline bool QScriptEnginePrivate::hasUncaughtException() const | 
|---|
| 730 | { | 
|---|
| 731 | return (currentContext()->state() == QScriptContext::ExceptionState); | 
|---|
| 732 | } | 
|---|
| 733 |  | 
|---|
| 734 | inline QScriptValueImpl QScriptEnginePrivate::uncaughtException() const | 
|---|
| 735 | { | 
|---|
| 736 | if (!hasUncaughtException()) | 
|---|
| 737 | return QScriptValueImpl(); | 
|---|
| 738 | return currentContext()->returnValue(); | 
|---|
| 739 | } | 
|---|
| 740 |  | 
|---|
| 741 | inline void QScriptEnginePrivate::maybeProcessEvents() | 
|---|
| 742 | { | 
|---|
| 743 | if (m_processEventsInterval > 0 && ++m_processEventIncr > 512) { | 
|---|
| 744 | m_processEventIncr = 0; | 
|---|
| 745 | processEvents(); | 
|---|
| 746 | } | 
|---|
| 747 | } | 
|---|
| 748 |  | 
|---|
| 749 | inline bool QScriptEnginePrivate::shouldAbort() const | 
|---|
| 750 | { | 
|---|
| 751 | return m_abort; | 
|---|
| 752 | } | 
|---|
| 753 |  | 
|---|
| 754 | inline void QScriptEnginePrivate::resetAbortFlag() | 
|---|
| 755 | { | 
|---|
| 756 | m_abort = false; | 
|---|
| 757 | } | 
|---|
| 758 |  | 
|---|
| 759 | #ifndef Q_SCRIPT_NO_EVENT_NOTIFY | 
|---|
| 760 |  | 
|---|
| 761 | inline bool QScriptEnginePrivate::shouldNotify() const | 
|---|
| 762 | { | 
|---|
| 763 | return m_agent != 0; | 
|---|
| 764 | } | 
|---|
| 765 |  | 
|---|
| 766 | inline void QScriptEnginePrivate::notifyScriptLoad( | 
|---|
| 767 | qint64 id, const QString &program, | 
|---|
| 768 | const QString &fileName, int lineNumber) | 
|---|
| 769 | { | 
|---|
| 770 | if (shouldNotify()) | 
|---|
| 771 | notifyScriptLoad_helper(id, program, fileName, lineNumber); | 
|---|
| 772 | } | 
|---|
| 773 |  | 
|---|
| 774 | inline void QScriptEnginePrivate::notifyScriptUnload(qint64 id) | 
|---|
| 775 | { | 
|---|
| 776 | if (shouldNotify()) | 
|---|
| 777 | notifyScriptUnload_helper(id); | 
|---|
| 778 | } | 
|---|
| 779 |  | 
|---|
| 780 | inline void QScriptEnginePrivate::notifyPositionChange(QScriptContextPrivate *ctx) | 
|---|
| 781 | { | 
|---|
| 782 | Q_ASSERT(m_agent != 0); | 
|---|
| 783 | notifyPositionChange_helper(ctx); | 
|---|
| 784 | } | 
|---|
| 785 |  | 
|---|
| 786 | inline void QScriptEnginePrivate::notifyContextPush() | 
|---|
| 787 | { | 
|---|
| 788 | if (shouldNotify()) | 
|---|
| 789 | notifyContextPush_helper(); | 
|---|
| 790 | } | 
|---|
| 791 |  | 
|---|
| 792 | inline void QScriptEnginePrivate::notifyContextPop() | 
|---|
| 793 | { | 
|---|
| 794 | if (shouldNotify()) | 
|---|
| 795 | notifyContextPop_helper(); | 
|---|
| 796 | } | 
|---|
| 797 |  | 
|---|
| 798 | inline void QScriptEnginePrivate::notifyFunctionEntry(QScriptContextPrivate *ctx) | 
|---|
| 799 | { | 
|---|
| 800 | if (shouldNotify()) | 
|---|
| 801 | notifyFunctionEntry_helper(ctx); | 
|---|
| 802 | } | 
|---|
| 803 |  | 
|---|
| 804 | inline void QScriptEnginePrivate::notifyFunctionExit(QScriptContextPrivate *ctx) | 
|---|
| 805 | { | 
|---|
| 806 | if (shouldNotify()) | 
|---|
| 807 | notifyFunctionExit_helper(ctx); | 
|---|
| 808 | } | 
|---|
| 809 |  | 
|---|
| 810 | inline void QScriptEnginePrivate::notifyException(QScriptContextPrivate *ctx) | 
|---|
| 811 | { | 
|---|
| 812 | if (shouldNotify()) | 
|---|
| 813 | notifyException_helper(ctx); | 
|---|
| 814 | } | 
|---|
| 815 |  | 
|---|
| 816 | inline void QScriptEnginePrivate::notifyExceptionCatch(QScriptContextPrivate *ctx) | 
|---|
| 817 | { | 
|---|
| 818 | if (shouldNotify()) | 
|---|
| 819 | notifyExceptionCatch_helper(ctx); | 
|---|
| 820 | } | 
|---|
| 821 |  | 
|---|
| 822 | #endif // Q_SCRIPT_NO_EVENT_NOTIFY | 
|---|
| 823 |  | 
|---|
| 824 | QT_END_NAMESPACE | 
|---|
| 825 |  | 
|---|
| 826 | #endif // QT_NO_SCRIPT | 
|---|
| 827 |  | 
|---|
| 828 | #endif | 
|---|