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Diffstat (limited to 'src/qml/qml/v4vm/qv4global_p.h')
| -rw-r--r-- | src/qml/qml/v4vm/qv4global_p.h | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src/qml/qml/v4vm/qv4global_p.h b/src/qml/qml/v4vm/qv4global_p.h new file mode 100644 index 0000000000..5f3f1b6d17 --- /dev/null +++ b/src/qml/qml/v4vm/qv4global_p.h @@ -0,0 +1,169 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the V4VM 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 QV4GLOBAL_H +#define QV4GLOBAL_H + +#include <QtCore/qglobal.h> + +QT_BEGIN_NAMESPACE + +#ifndef QT_STATIC +# if defined(QT_BUILD_V4_LIB) +# define Q_V4_EXPORT Q_DECL_EXPORT +# else +# define Q_V4_EXPORT Q_DECL_IMPORT +# endif +#else +# define Q_V4_EXPORT +#endif + +namespace QQmlJS { +namespace VM { + + +enum PropertyFlag { + Attr_Data = 0, + Attr_Accessor = 0x1, + Attr_NotWritable = 0x2, + Attr_NotEnumerable = 0x4, + Attr_NotConfigurable = 0x8, + Attr_ReadOnly = Attr_NotWritable|Attr_NotEnumerable|Attr_NotConfigurable, + Attr_Invalid = 0xff +}; + +Q_DECLARE_FLAGS(PropertyFlags, PropertyFlag); +Q_DECLARE_OPERATORS_FOR_FLAGS(PropertyFlags); + +struct PropertyAttributes +{ + union { + uchar m_all; + struct { + uchar m_flags : 4; + uchar m_mask : 4; + }; + struct { + uchar m_type : 1; + uchar m_writable : 1; + uchar m_enumerable : 1; + uchar m_configurable : 1; + uchar type_set : 1; + uchar writable_set : 1; + uchar enumerable_set : 1; + uchar configurable_set : 1; + }; + }; + + enum Type { + Data = 0, + Accessor = 1, + Generic = 2 + }; + + PropertyAttributes() : m_all(0) {} + PropertyAttributes(PropertyFlag f) : m_all(0) { + if (f != Attr_Invalid) { + setType(f & Attr_Accessor ? Accessor : Data); + if (!(f & Attr_Accessor)) + setWritable(!(f & Attr_NotWritable)); + setEnumerable(!(f & Attr_NotEnumerable)); + setConfigurable(!(f & Attr_NotConfigurable)); + } + } + PropertyAttributes(PropertyFlags f) : m_all(0) { + if (f != Attr_Invalid) { + setType(f & Attr_Accessor ? Accessor : Data); + if (!(f & Attr_Accessor)) + setWritable(!(f & Attr_NotWritable)); + setEnumerable(!(f & Attr_NotEnumerable)); + setConfigurable(!(f & Attr_NotConfigurable)); + } + } + PropertyAttributes(const PropertyAttributes &other) : m_all(other.m_all) {} + PropertyAttributes & operator=(const PropertyAttributes &other) { m_all = other.m_all; return *this; } + + void setType(Type t) { m_type = t; type_set = true; } + Type type() const { return type_set ? (Type)m_type : Generic; } + + bool isData() const { return type() == PropertyAttributes::Data || writable_set; } + bool isAccessor() const { return type() == PropertyAttributes::Accessor; } + bool isGeneric() const { return type() == PropertyAttributes::Generic && !writable_set; } + + bool hasType() const { return type_set; } + bool hasWritable() const { return writable_set; } + bool hasConfigurable() const { return configurable_set; } + bool hasEnumerable() const { return enumerable_set; } + + void setWritable(bool b) { m_writable = b; writable_set = true; } + void setConfigurable(bool b) { m_configurable = b; configurable_set = true; } + void setEnumerable(bool b) { m_enumerable = b; enumerable_set = true; } + + void resolve() { m_mask = 0xf; if (m_type == Accessor) { m_writable = false; writable_set = false; } } + + bool isWritable() const { return m_type != Data || m_writable; } + bool isEnumerable() const { return m_enumerable; } + bool isConfigurable() const { return m_configurable; } + + void clearType() { m_type = Data; type_set = false; } + void clearWritable() { m_writable = false; writable_set = false; } + void clearEnumerable() { m_enumerable = false; enumerable_set = false; } + void clearConfigurable() { m_configurable = false; configurable_set = false; } + + void clear() { m_all = 0; } + bool isEmpty() const { return !m_all; } + + uint flags() const { return m_flags; } + + bool operator==(PropertyAttributes other) { + return m_all == other.m_all; + } + bool operator!=(PropertyAttributes other) { + return m_all != other.m_all; + } +}; + +} +} + +QT_END_NAMESPACE + +#endif // QV4GLOBAL_H |