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46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
52 #ifndef Patternist_Integer_H
53 #define Patternist_Integer_H
55 #include <private/qschemanumeric_p.h>
64 * @short Implements the value instance of the @c xs:integer type.
66 * @author Frans Englich <frans.englich@nokia.com>
67 * @ingroup Patternist_xdm
68 * @todo Documentation is missing
70 class Integer : public Numeric
74 typedef Numeric::Ptr Ptr;
77 * Constructs an instance from the lexical
78 * representation @p strNumeric.
80 * @todo Type error handling.
82 static AtomicValue::Ptr fromLexical(const QString &strNumeric);
84 static Item fromValue(const xsInteger num);
87 * Determines the Effective %Boolean Value of this number.
89 * @returns @c false if the number is 0, otherwise @c true.
91 bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const;
93 virtual QString stringValue() const;
96 * @returns always BuiltinTypes::xsInteger
98 virtual ItemType::Ptr type() const;
100 virtual xsDouble toDouble() const;
101 virtual xsInteger toInteger() const;
102 virtual xsFloat toFloat() const;
103 virtual xsDecimal toDecimal() const;
105 virtual Numeric::Ptr round() const;
106 virtual Numeric::Ptr roundHalfToEven(const xsInteger scale) const;
107 virtual Numeric::Ptr floor() const;
108 virtual Numeric::Ptr ceiling() const;
109 virtual Numeric::Ptr abs() const;
110 virtual qulonglong toUnsignedInteger() const;
113 * @returns always @c false, @c xs:integer doesn't have
114 * not-a-number in its value space.
116 virtual bool isNaN() const;
119 * @returns always @c false, @c xs:integer doesn't have
120 * infinity in its value space.
122 virtual bool isInf() const;
123 virtual Item toNegated() const;
126 * @short Returns always @c true.
128 virtual bool isSigned() const;
130 Integer(const xsInteger num);
133 const xsInteger m_value;