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39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists purely as an
45// implementation detail. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49
50#ifndef Patternist_Integer_H
51#define Patternist_Integer_H
52
53#include <private/qschemanumeric_p.h>
54
55QT_BEGIN_NAMESPACE
56
57namespace QPatternist
58{
59 /**
60 * @short Implements the value instance of the @c xs:integer type.
61 *
62 * @author Frans Englich <frans.englich@nokia.com>
63 * @ingroup Patternist_xdm
64 * @todo Documentation is missing
65 */
66 class Integer : public Numeric
67 {
68 public:
69
70 typedef Numeric::Ptr Ptr;
71
72 /**
73 * Constructs an instance from the lexical
74 * representation @p strNumeric.
75 *
76 * @todo Type error handling.
77 */
78 static AtomicValue::Ptr fromLexical(const QString &strNumeric);
79
80 static Item fromValue(const xsInteger num);
81
82 /**
83 * Determines the Effective %Boolean Value of this number.
84 *
85 * @returns @c false if the number is 0, otherwise @c true.
86 */
87 bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const;
88
89 virtual QString stringValue() const;
90
91 /**
92 * @returns always BuiltinTypes::xsInteger
93 */
94 virtual ItemType::Ptr type() const;
95
96 virtual xsDouble toDouble() const;
97 virtual xsInteger toInteger() const;
98 virtual xsFloat toFloat() const;
99 virtual xsDecimal toDecimal() const;
100
101 virtual Numeric::Ptr round() const;
102 virtual Numeric::Ptr roundHalfToEven(const xsInteger scale) const;
103 virtual Numeric::Ptr floor() const;
104 virtual Numeric::Ptr ceiling() const;
105 virtual Numeric::Ptr abs() const;
106 virtual qulonglong toUnsignedInteger() const;
107
108 /**
109 * @returns always @c false, @c xs:integer doesn't have
110 * not-a-number in its value space.
111 */
112 virtual bool isNaN() const;
113
114 /**
115 * @returns always @c false, @c xs:integer doesn't have
116 * infinity in its value space.
117 */
118 virtual bool isInf() const;
119 virtual Item toNegated() const;
120
121 /**
122 * @short Returns always @c true.
123 */
124 virtual bool isSigned() const;
125 protected:
126 Integer(const xsInteger num);
127
128 private:
129 const xsInteger m_value;
130 };
131}
132
133QT_END_NAMESPACE
134
135#endif
136

source code of qtxmlpatterns/src/xmlpatterns/data/qinteger_p.h