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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.

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    41 

    42 //

    43 //  W A R N I N G

    44 //  -------------

    45 //

    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.

    49 //

    50 // We mean it.

    51 

    52 #ifndef Patternist_Integer_H

    53 #define Patternist_Integer_H

    54 

    55 #include "qschemanumeric_p.h"

    56 

    57 QT_BEGIN_HEADER

    58 

    59 QT_BEGIN_NAMESPACE

    60 

    61 namespace QPatternist

    62 {

    63     /**

    64      * @short Implements the value instance of the @c xs:integer type.

    65      *

    66      * @author Frans Englich <frans.englich@nokia.com>

    67      * @ingroup Patternist_xdm

    68      * @todo Documentation is missing

    69      */

    70     class Integer : public Numeric

    71     {

    72     public:

    73 

    74         typedef Numeric::Ptr Ptr;

    75 

    76         /**

    77          * Constructs an instance from the lexical

    78          * representation @p strNumeric.

    79          *

    80          * @todo Type error handling.

    81          */

    82         static AtomicValue::Ptr fromLexical(const QString &strNumeric);

    83 

    84         static Item fromValue(const xsInteger num);

    85 

    86         /**

    87          * Determines the Effective %Boolean Value of this number.

    88          *

    89          * @returns @c false if the number is 0, otherwise @c true.

    90          */

    91         bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const;

    92 

    93         virtual QString stringValue() const;

    94 

    95         /**

    96          * @returns always BuiltinTypes::xsInteger

    97          */

    98         virtual ItemType::Ptr type() const;

    99 

   100         virtual xsDouble toDouble() const;

   101         virtual xsInteger toInteger() const;

   102         virtual xsFloat toFloat() const;

   103         virtual xsDecimal toDecimal() const;

   104 

   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;

   111 

   112         /**

   113          * @returns always @c false, @c xs:integer doesn't have

   114          * not-a-number in its value space.

   115          */

   116         virtual bool isNaN() const;

   117 

   118         /**

   119          * @returns always @c false, @c xs:integer doesn't have

   120          * infinity in its value space.

   121          */

   122         virtual bool isInf() const;

   123         virtual Item toNegated() const;

   124 

   125         /**

   126          * @short Returns always @c true.

   127          */

   128         virtual bool isSigned() const;

   129     protected:

   130         Integer(const xsInteger num);

   131 

   132     private:

   133         const xsInteger m_value;

   134     };

   135 }

   136 

   137 QT_END_NAMESPACE

   138 

   139 QT_END_HEADER

   140 

   141 #endif