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Diffstat (limited to 'src/qml/jsruntime/qv4string_p.h')
| -rw-r--r-- | src/qml/jsruntime/qv4string_p.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4string_p.h b/src/qml/jsruntime/qv4string_p.h new file mode 100644 index 0000000000..31e5c2a5f7 --- /dev/null +++ b/src/qml/jsruntime/qv4string_p.h @@ -0,0 +1,146 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#ifndef QV4STRING_H +#define QV4STRING_H + +#include <QtCore/qstring.h> +#include "qv4managed_p.h" + +QT_BEGIN_NAMESPACE + +namespace QV4 { + +struct ExecutionEngine; +struct Identifier; + +struct Q_QML_EXPORT String : public Managed { + enum StringType { + StringType_Unknown, + StringType_Regular, + StringType_UInt, + StringType_ArrayIndex + }; + + String() : Managed(0), identifier(0), stringHash(UINT_MAX) + { vtbl = &static_vtbl; type = Type_String; subtype = StringType_Unknown; } + String(ExecutionEngine *engine, const QString &text); + ~String() { _data = 0; } + + inline bool isEqualTo(const String *other) const { + if (this == other) + return true; + if (hashValue() != other->hashValue()) + return false; + if (identifier && identifier == other->identifier) + return true; + if (subtype >= StringType_UInt && subtype == other->subtype) + return true; + + return toQString() == other->toQString(); + } + inline bool compare(const String *other) { + return toQString() < other->toQString(); + } + + inline bool isEmpty() const { return _text.isEmpty(); } + inline const QString &toQString() const { + return _text; + } + + inline unsigned hashValue() const { + if (subtype == StringType_Unknown) + createHashValue(); + + return stringHash; + } + uint asArrayIndex() const { + if (subtype == StringType_Unknown) + createHashValue(); + if (subtype == StringType_ArrayIndex) + return stringHash; + return UINT_MAX; + } + uint toUInt(bool *ok) const; + + void makeIdentifier() { + if (identifier) + return; + makeIdentifierImpl(); + } + + void makeIdentifierImpl(); + + void createHashValue() const; + static uint createHashValue(const QChar *ch, int length); + static uint createHashValue(const char *ch, int length); + + bool startsWithUpper() const { + return _text.length() && _text.at(0).isUpper(); + } + int length() const { + return _text.length(); + } + + QString _text; + mutable Identifier *identifier; + mutable uint stringHash; + + +protected: + static void destroy(Managed *); + static Value get(Managed *m, String *name, bool *hasProperty); + static Value getIndexed(Managed *m, uint index, bool *hasProperty); + static void put(Managed *m, String *name, const Value &value); + static void putIndexed(Managed *m, uint index, const Value &value); + static PropertyAttributes query(const Managed *m, String *name); + static PropertyAttributes queryIndexed(const Managed *m, uint index); + static bool deleteProperty(Managed *, String *); + static bool deleteIndexedProperty(Managed *m, uint index); + static bool isEqualTo(Managed *that, Managed *o); + + static const ManagedVTable static_vtbl; +}; + +} + +QT_END_NAMESPACE + +#endif |