(四) - 分析 QXmlStream.h 文件框架 - TokenType - QXmlStreamAttribute

Q_CORE_EXPORT QXmlStreamStringRef 
Q_CORE_EXPORT QXmlStreamAttribute 
Q_CORE_EXPORT QXmlStreamAttributes : public QVector<QXmlStreamAttribute>
Q_CORE_EXPORT QXmlStreamNamespaceDeclaration 
Q_CORE_EXPORT QXmlStreamNotationDeclaration 
Q_CORE_EXPORT QXmlStreamEntityDeclaration 
Q_CORE_EXPORT QXmlStreamEntityResolver
Q_CORE_EXPORT QXmlStreamReader 
Q_CORE_EXPORT QXmlStreamWrite

STEP1、分析代码

class Q_CORE_EXPORT QXmlStreamAttribute {
	
    QXmlStreamStringRef m_name, m_namespaceUri, m_qualifiedName, m_value;
    void *reserved;
    uint m_isDefault : 1;
    friend class QXmlStreamReaderPrivate;
    friend class QXmlStreamAttributes;
		
public:

	QXmlStreamAttribute();
    QXmlStreamAttribute(const QString &qualifiedName, const QString &value);
    QXmlStreamAttribute(const QString &namespaceUri, const QString &name, const QString &value);
    QXmlStreamAttribute(const QXmlStreamAttribute &);
    QXmlStreamAttribute& operator=(const QXmlStreamAttribute &);
    ~QXmlStreamAttribute();


    inline QStringRef namespaceUri() const { return m_namespaceUri; }
    inline QStringRef name() const { return m_name; }
    inline QStringRef qualifiedName() const { return m_qualifiedName; }
    inline QStringRef prefix() const {
        return QStringRef(m_qualifiedName.string(),
                          m_qualifiedName.position(),
                          qMax(0, m_qualifiedName.size() - m_name.size() - 1));
    }
    inline QStringRef value() const { return m_value; }
    inline bool isDefault() const { return m_isDefault; }
    inline bool operator==(const QXmlStreamAttribute &other) const {
        return (value() == other.value()
                && (namespaceUri().isNull() ? (qualifiedName() == other.qualifiedName())
                    : (namespaceUri() == other.namespaceUri() && name() == other.name())));
    }
    inline bool operator!=(const QXmlStreamAttribute &other) const
        { return !operator==(other); }

};

Q_DECLARE_TYPEINFO(QXmlStreamAttribute, Q_MOVABLE_TYPE);

class Q_CORE_EXPORT QXmlStreamAttributes : public QVector<QXmlStreamAttribute>
{
public:
    inline QXmlStreamAttributes() {}
    QStringRef value(const QString &namespaceUri, const QString &name) const;
    QStringRef value(const QString &namespaceUri, QLatin1String name) const;
    QStringRef value(QLatin1String namespaceUri, QLatin1String name) const;
    QStringRef value(const QString &qualifiedName) const;
    QStringRef value(QLatin1String qualifiedName) const;
    void append(const QString &namespaceUri, const QString &name, const QString &value);
    void append(const QString &qualifiedName, const QString &value);

    inline bool hasAttribute(const QString &qualifiedName) const
    {
        return !value(qualifiedName).isNull();
    }

    inline bool hasAttribute(QLatin1String qualifiedName) const
    {
        return !value(qualifiedName).isNull();
    }

    inline bool hasAttribute(const QString &namespaceUri, const QString &name) const
    {
        return !value(namespaceUri, name).isNull();
    }

    using QVector<QXmlStreamAttribute>::append;
};