--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/data/qatomiccasters_p.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,705 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtXmlPatterns module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_AtomicCasters_H
+#define Patternist_AtomicCasters_H
+
+#include "qatomiccaster_p.h"
+#include "qdecimal_p.h"
+#include "qderivedinteger_p.h"
+#include "qderivedstring_p.h"
+#include "qinteger_p.h"
+#include "qvalidationerror_p.h"
+
+/**
+ * @file
+ * @short Contains classes sub-classing AtomicCaster and which
+ * are responsible of casting an atomic value to another type.
+ */
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+
+ /**
+ * @short Casts any atomic value to @c xs:string.
+ *
+ * This class uses Item::stringValue() for retrieving a string
+ * representation, and thus supports casting from atomic values
+ * of any type.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ template<TypeOfDerivedString DerivedType>
+ class ToStringCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+ {
+ Q_ASSERT(from);
+ return DerivedString<DerivedType>::fromLexical(context->namePool(), from.stringValue());
+ }
+ };
+
+ /**
+ * @short Casts any atomic value to @c xs:untypedAtomic.
+ *
+ * This class uses Item::stringValue() for retrieving a string
+ * representation, and thus supports casting from atomic values
+ * of any type. The implementation is similar to ToStringCaster.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class ToUntypedAtomicCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a string value to @c xs:anyURI.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class ToAnyURICaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:hexBinary atomic value to @c xs:base64Binary.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class HexBinaryToBase64BinaryCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:base64Binary atomic value to @c xs:hexBinary.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class Base64BinaryToHexBinaryCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:base64Binary.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToBase64BinaryCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:hexBinary.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToHexBinaryCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts any @c numeric value to @c xs:boolean.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class NumericToBooleanCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts any string value, @c xs:string or @c xs:untypedAtomic, to @c xs:boolean.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToBooleanCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c numeric value, such as @c xs:double or @c xs:decimal, to @c xs:integer or
+ * @c xs:decimal, depending on IsInteger.
+ *
+ * castFrom() uses Numeric::toInteger() for doing the actual casting.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ template <const bool IsInteger>
+ class NumericToDecimalCaster : public AtomicCaster
+ {
+ public:
+ /**
+ * Used by NumericToDerivedIntegerCaster in addition to this class.
+ */
+ static inline QString errorMessage()
+ {
+ return QtXmlPatterns::tr("When casting to %1 from %2, the source value cannot be %3.");
+ }
+
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+ {
+ const ItemType::Ptr t(from.type());
+ const Numeric *const num = from.template as<Numeric>();
+
+ if(BuiltinTypes::xsDouble->xdtTypeMatches(t) || BuiltinTypes::xsFloat->xdtTypeMatches(t))
+ {
+ if(num->isInf() || num->isNaN())
+ {
+ return ValidationError::createError(errorMessage()
+ .arg(formatType(context->namePool(), IsInteger ? BuiltinTypes::xsInteger : BuiltinTypes::xsDecimal))
+ .arg(formatType(context->namePool(), t))
+ .arg(formatData(num->stringValue())),
+ ReportContext::FOCA0002);
+ }
+ }
+
+ if(IsInteger)
+ return Integer::fromValue(num->toInteger());
+ else
+ return toItem(Decimal::fromValue(num->toDecimal()));
+ }
+ };
+
+ /**
+ * @short Casts a string value, @c xs:string or @c xs:untypedAtomic, to @c xs:decimal.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToDecimalCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a string value, @c xs:string or @c xs:untypedAtomic, to @c xs:integer.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToIntegerCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a value of type @c xs:boolean to @c xs:decimal.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class BooleanToDecimalCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a value of type @c xs:boolean to @c xs:integer.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class BooleanToIntegerCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a value to itself. Essentially, this AtomicCaster does nothing.
+ *
+ * Casting a value to the type of itself is defined to be a noop,
+ * no operation. When it can be statically detected that will be done,
+ * CastAs rewrites itself appropriately during compilation, but
+ * in some cases insufficent data is available at compile time and then
+ * is this class need on a case-per-case base at evaluation time.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class SelfToSelfCaster : public AtomicCaster
+ {
+ public:
+
+ /**
+ * This function simply returns @p from.
+ */
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gYear.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToGYearCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gDay.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToGDayCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gMonth.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToGMonthCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gYearMonth.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToGYearMonthCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:gYearMonth.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToGMonthDayCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:dateTime.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToDateTimeCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:time.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToTimeCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:date.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToDateCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:duration.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToDurationCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:dayTimeDuration.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToDayTimeDurationCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:string or @c xs:untypedAtomic atomic value to @c xs:yearMonthDuration.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class StringToYearMonthDurationCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+
+ /**
+ * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gYear.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDateTimeToGYearCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gYearMonth.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDateTimeToGYearMonthCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gMonth.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDateTimeToGMonthCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gMonthDay.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDateTimeToGMonthDayCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts a @c xs:date or @c xs:dateTime atomic value to @c xs:gDay.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDateTimeToGDayCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts an AbstractDateTime instance to DateTime.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDateTimeToDateTimeCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts an AbstractDateTime instance to SchemaTime.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDateTimeToDateCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts an AbstractDateTime instance to SchemaTime.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDateTimeToTimeCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts an AbstractDuration instance to Duration.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDurationToDurationCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts an AbstractDuration instance to DayTimeDuration.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDurationToDayTimeDurationCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts an AbstractDuration instance to YearMonthDuration.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ class AbstractDurationToYearMonthDurationCaster : public AtomicCaster
+ {
+ public:
+ virtual Item castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const;
+ };
+
+ /**
+ * @short Casts an @c xs:string instance to a derived type of @c xs:integer.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ template<TypeOfDerivedInteger type>
+ class StringToDerivedIntegerCaster : public AtomicCaster
+ {
+ public:
+ virtual Item
+ castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+ {
+ return DerivedInteger<type>::fromLexical(context->namePool(), from.stringValue());
+ }
+ };
+
+ /**
+ * @short Casts an @c xs:boolean instance to a derived type of @c xs:integer.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ template<TypeOfDerivedInteger type>
+ class BooleanToDerivedIntegerCaster : public AtomicCaster
+ {
+ public:
+ virtual Item
+ castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+ {
+ return DerivedInteger<type>::fromValue(context->namePool(), from.template as<AtomicValue>()->evaluateEBV(context) ? 1 : 0);
+ }
+ };
+
+ /**
+ * @short Casts an @c xs:boolean instance to a derived type of @c xs:integer.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ template<TypeOfDerivedString type>
+ class AnyToDerivedStringCaster : public AtomicCaster
+ {
+ public:
+ virtual Item
+ castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+ {
+ return DerivedString<type>::fromLexical(context->namePool(), from.stringValue());
+ }
+ };
+
+ /**
+ * @short Casts any @c numeric instance to a derived type of @c xs:integer.
+ *
+ * @ingroup Patternist_xdm
+ * @author Frans Englich <frans.englich@nokia.com>
+ */
+ template<TypeOfDerivedInteger type>
+ class NumericToDerivedIntegerCaster : public AtomicCaster
+ {
+ public:
+ virtual Item
+ castFrom(const Item &from,
+ const QExplicitlySharedDataPointer<DynamicContext> &context) const
+ {
+ const ItemType::Ptr t(from.type());
+ const Numeric *const num = from.template as<Numeric>();
+
+ if(BuiltinTypes::xsDouble->xdtTypeMatches(t) || BuiltinTypes::xsFloat->xdtTypeMatches(t))
+ {
+ if(num->isInf() || num->isNaN())
+ {
+ return ValidationError::createError(NumericToDecimalCaster<false>::errorMessage()
+ .arg(formatType(context->namePool(), DerivedInteger<type>::itemType()))
+ .arg(formatType(context->namePool(), t))
+ .arg(formatData(num->stringValue())),
+ ReportContext::FOCA0002);
+ }
+ }
+
+ return toItem(DerivedInteger<type>::fromValue(context->namePool(), from.template as<Numeric>()->toInteger()));
+ }
+ };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif