| /**************************************************************************** |
| ** |
| ** Copyright (C) 2011 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. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** 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. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| // |
| // 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_DerivedInteger_H |
| #define Patternist_DerivedInteger_H |
| |
| #include "qbuiltintypes_p.h" |
| #include "qinteger_p.h" |
| #include "qpatternistlocale_p.h" |
| #include "qvalidationerror_p.h" |
| |
| QT_BEGIN_HEADER |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QPatternist |
| { |
| /** |
| * @relates DerivedInteger |
| */ |
| enum DerivedIntegerLimitsUsage |
| { |
| None = 1, |
| LimitUpwards = 2, |
| LimitDownwards = 4, |
| LimitBoth = LimitUpwards | LimitDownwards |
| }; |
| |
| enum |
| { |
| IgnorableSignedValue = 0, |
| IgnorableUnsignedValue = 0 |
| }; |
| |
| template<TypeOfDerivedInteger DerivedType> class DerivedInteger; |
| |
| template<TypeOfDerivedInteger DerivedType> class DerivedIntegerDetails; |
| |
| template<> |
| class DerivedIntegerDetails<TypeByte> |
| { |
| private: |
| friend class DerivedInteger<TypeByte>; |
| typedef qint8 StorageType; |
| typedef xsInteger TemporaryStorageType; |
| static const StorageType maxInclusive = 127; |
| static const StorageType minInclusive = -128; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitBoth; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeInt> |
| { |
| private: |
| friend class DerivedInteger<TypeInt>; |
| typedef qint32 StorageType; |
| typedef xsInteger TemporaryStorageType; |
| static const StorageType maxInclusive = Q_INT64_C(2147483647); |
| static const StorageType minInclusive = Q_INT64_C(-2147483648); |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitBoth; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeLong> |
| { |
| private: |
| friend class DerivedInteger<TypeLong>; |
| typedef qint64 StorageType; |
| typedef StorageType TemporaryStorageType; |
| static const StorageType maxInclusive = Q_INT64_C(9223372036854775807); |
| |
| /** |
| * This messy arithmetic expression ensures that we don't get a warning |
| * on neither GCC nor MSVC. |
| */ |
| static const StorageType minInclusive = -(Q_INT64_C(9223372036854775807)) - 1; |
| |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitBoth; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeNegativeInteger> |
| { |
| private: |
| friend class DerivedInteger<TypeNegativeInteger>; |
| typedef xsInteger StorageType; |
| typedef StorageType TemporaryStorageType; |
| static const StorageType maxInclusive = -1; |
| static const StorageType minInclusive = IgnorableSignedValue; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitUpwards; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeNonNegativeInteger> |
| { |
| private: |
| friend class DerivedInteger<TypeNonNegativeInteger>; |
| typedef xsInteger StorageType; |
| typedef StorageType TemporaryStorageType; |
| static const StorageType maxInclusive = IgnorableSignedValue; |
| static const StorageType minInclusive = 0; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitDownwards; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeNonPositiveInteger> |
| { |
| private: |
| friend class DerivedInteger<TypeNonPositiveInteger>; |
| typedef xsInteger StorageType; |
| typedef StorageType TemporaryStorageType; |
| static const StorageType maxInclusive = 0; |
| static const StorageType minInclusive = IgnorableSignedValue; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitUpwards; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypePositiveInteger> |
| { |
| private: |
| friend class DerivedInteger<TypePositiveInteger>; |
| typedef xsInteger StorageType; |
| typedef StorageType TemporaryStorageType; |
| static const StorageType maxInclusive = IgnorableSignedValue; |
| static const StorageType minInclusive = 1; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitDownwards; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeShort> |
| { |
| private: |
| friend class DerivedInteger<TypeShort>; |
| typedef qint16 StorageType; |
| typedef xsInteger TemporaryStorageType; |
| static const StorageType maxInclusive = 32767; |
| static const StorageType minInclusive = -32768; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitBoth; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeUnsignedByte> |
| { |
| private: |
| friend class DerivedInteger<TypeUnsignedByte>; |
| typedef quint8 StorageType; |
| typedef qint64 TemporaryStorageType; |
| static const StorageType maxInclusive = 255; |
| static const StorageType minInclusive = 0; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitBoth; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeUnsignedInt> |
| { |
| private: |
| friend class DerivedInteger<TypeUnsignedInt>; |
| typedef quint32 StorageType; |
| typedef qint64 TemporaryStorageType; |
| static const StorageType maxInclusive = Q_UINT64_C(4294967295); |
| static const StorageType minInclusive = 0; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitBoth; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeUnsignedLong> |
| { |
| private: |
| friend class DerivedInteger<TypeUnsignedLong>; |
| typedef quint64 StorageType; |
| typedef StorageType TemporaryStorageType; |
| static const StorageType maxInclusive = Q_UINT64_C(18446744073709551615); |
| static const StorageType minInclusive = 0; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitBoth; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| template<> |
| class DerivedIntegerDetails<TypeUnsignedShort> |
| { |
| private: |
| friend class DerivedInteger<TypeUnsignedShort>; |
| typedef quint16 StorageType; |
| typedef qint64 TemporaryStorageType; |
| static const StorageType maxInclusive = 65535; |
| static const StorageType minInclusive = 0; |
| static const DerivedIntegerLimitsUsage limitsUsage = LimitBoth; |
| |
| /** |
| * Disable the default constructor. |
| */ |
| DerivedIntegerDetails() {} |
| |
| Q_DISABLE_COPY(DerivedIntegerDetails) |
| }; |
| |
| /** |
| * @short Represents instances of derived @c xs:integer types, such as @c |
| * xs:byte. |
| * |
| * @author Frans Englich <frans.englich@nokia.com> |
| * @ingroup Patternist_xdm |
| */ |
| template<TypeOfDerivedInteger DerivedType> |
| class DerivedInteger : public Numeric |
| { |
| private: |
| typedef typename DerivedIntegerDetails<DerivedType>::StorageType StorageType; |
| typedef typename DerivedIntegerDetails<DerivedType>::TemporaryStorageType TemporaryStorageType; |
| |
| static const StorageType maxInclusive = DerivedIntegerDetails<DerivedType>::maxInclusive; |
| static const StorageType minInclusive = DerivedIntegerDetails<DerivedType>::minInclusive; |
| static const DerivedIntegerLimitsUsage limitsUsage = DerivedIntegerDetails<DerivedType>::limitsUsage; |
| |
| const StorageType m_value; |
| |
| inline DerivedInteger(const StorageType num) : m_value(num) |
| { |
| } |
| |
| /** |
| * By refactoring out the simple comparison below into a template |
| * function, we avoid the warning "warning: comparison of unsigned expression < 0 is always false" with gcc |
| * when the class is instantiated with TypeUnsignedLong. The warning is |
| * a false positive since we check wehther LimitUpwards is set before |
| * instantiating. |
| * |
| * This template function exists for no other reason. */ |
| template<typename A, typename B> |
| static bool lessThan(const A &a, const B &b) |
| { |
| return a < b; |
| } |
| |
| /** |
| * This function exists for the same reason that lessThan() do. |
| */ |
| template<typename A, typename B> |
| static bool largerOrEqual(const A &a, const B &b) |
| { |
| return qint64(a) >= b; |
| } |
| |
| public: |
| |
| static ItemType::Ptr itemType() |
| { |
| switch(DerivedType) |
| { |
| case TypeByte: return BuiltinTypes::xsByte; |
| case TypeInt: return BuiltinTypes::xsInt; |
| case TypeLong: return BuiltinTypes::xsLong; |
| case TypeNegativeInteger: return BuiltinTypes::xsNegativeInteger; |
| case TypeNonNegativeInteger: return BuiltinTypes::xsNonNegativeInteger; |
| case TypeNonPositiveInteger: return BuiltinTypes::xsNonPositiveInteger; |
| case TypePositiveInteger: return BuiltinTypes::xsPositiveInteger; |
| case TypeShort: return BuiltinTypes::xsShort; |
| case TypeUnsignedByte: return BuiltinTypes::xsUnsignedByte; |
| case TypeUnsignedInt: return BuiltinTypes::xsUnsignedInt; |
| case TypeUnsignedLong: return BuiltinTypes::xsUnsignedLong; |
| case TypeUnsignedShort: return BuiltinTypes::xsUnsignedShort; |
| } |
| |
| Q_ASSERT(false); |
| return ItemType::Ptr(); |
| } |
| |
| static AtomicValue::Ptr fromValue(const NamePool::Ptr &np, const TemporaryStorageType num) |
| { |
| /* If we use minInclusive when calling lessThan(), we for some |
| * reason get a linker error with GCC. Using this temporary |
| * variable solves it. */ |
| const StorageType minimum = minInclusive; |
| |
| if((limitsUsage & LimitUpwards) && |
| num > maxInclusive) |
| { |
| return ValidationError::createError(QtXmlPatterns::tr( |
| "Value %1 of type %2 exceeds maximum (%3).") |
| .arg(QPatternist::formatData(static_cast<xsInteger>(num))) |
| .arg(formatType(np, itemType())) |
| .arg(QPatternist::formatData(static_cast<xsInteger>(maxInclusive)))); |
| } |
| else if((limitsUsage & LimitDownwards) && |
| lessThan(num, minimum)) |
| { |
| return ValidationError::createError(QtXmlPatterns::tr( |
| "Value %1 of type %2 is below minimum (%3).") |
| .arg(QPatternist::formatData(static_cast<xsInteger>(num))) |
| .arg(formatType(np, itemType())) |
| .arg(QPatternist::formatData(static_cast<xsInteger>(minInclusive)))); |
| } |
| else |
| return AtomicValue::Ptr(new DerivedInteger(num)); |
| } |
| |
| static AtomicValue::Ptr fromValueUnchecked(const TemporaryStorageType num) |
| { |
| return AtomicValue::Ptr(new DerivedInteger(num)); |
| } |
| |
| /** |
| * Constructs an instance from the lexical |
| * representation @p strNumeric. |
| */ |
| static AtomicValue::Ptr fromLexical(const NamePool::Ptr &np, const QString &strNumeric) |
| { |
| bool conversionOk = false; |
| TemporaryStorageType num; |
| |
| /* Depending on the type, we need to call different conversion |
| * functions on QString. */ |
| switch(DerivedType) |
| { |
| case TypeUnsignedLong: |
| { |
| /* Qt decides to flag '-' as invalid, so remove it before. */ |
| if(strNumeric.contains(QLatin1Char('-'))) |
| { |
| num = QString(strNumeric).remove(QLatin1Char('-')).toULongLong(&conversionOk); |
| |
| if(num != 0) |
| conversionOk = false; |
| } |
| else |
| num = strNumeric.toULongLong(&conversionOk); |
| |
| break; |
| } |
| default: |
| { |
| num = strNumeric.toLongLong(&conversionOk); |
| break; |
| } |
| } |
| |
| if(conversionOk) |
| return fromValue(np, num); |
| else |
| return ValidationError::createError(); |
| } |
| |
| inline StorageType storedValue() const |
| { |
| return m_value; |
| } |
| |
| /** |
| * Determines the Effective %Boolean Value of this number. |
| * |
| * @returns @c false if the number is 0, otherwise @c true. |
| */ |
| bool evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &) const |
| { |
| return m_value != 0; |
| } |
| |
| virtual QString stringValue() const |
| { |
| return QString::number(m_value); |
| } |
| |
| virtual ItemType::Ptr type() const |
| { |
| return itemType(); |
| } |
| |
| virtual xsDouble toDouble() const |
| { |
| return static_cast<xsDouble>(m_value); |
| } |
| |
| virtual xsInteger toInteger() const |
| { |
| return m_value; |
| } |
| |
| virtual xsFloat toFloat() const |
| { |
| return static_cast<xsFloat>(m_value); |
| } |
| |
| virtual xsDecimal toDecimal() const |
| { |
| return static_cast<xsDecimal>(m_value); |
| } |
| |
| virtual Numeric::Ptr round() const |
| { |
| /* xs:integerS never have a mantissa. */ |
| return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(m_value).asAtomicValue()))); |
| } |
| |
| virtual Numeric::Ptr roundHalfToEven(const xsInteger) const |
| { |
| return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(m_value).asAtomicValue()))); |
| } |
| |
| virtual Numeric::Ptr floor() const |
| { |
| return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(m_value).asAtomicValue()))); |
| } |
| |
| virtual Numeric::Ptr ceiling() const |
| { |
| return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(m_value).asAtomicValue()))); |
| } |
| |
| virtual Numeric::Ptr abs() const |
| { |
| /* We unconditionally create an Integer even if we're a positive |
| * value, because one part of this is the type change to |
| * xs:integer. |
| * |
| * We've manually inlined qAbs() and invoke xsInteger's |
| * constructor. The reason being that we other gets truncation down |
| * to StorageType. See for instance XQTS test case absint1args-1. */ |
| return Numeric::Ptr(static_cast<Numeric *>(const_cast<AtomicValue *>(Integer::fromValue(largerOrEqual(m_value, 0) ? xsInteger(m_value) : -xsInteger(m_value)).asAtomicValue()))); |
| } |
| |
| /** |
| * @returns always @c false, @c xs:DerivedInteger doesn't have |
| * not-a-number in its value space. |
| */ |
| virtual bool isNaN() const |
| { |
| return false; |
| } |
| |
| /** |
| * @returns always @c false, @c xs:DerivedInteger doesn't have |
| * infinity in its value space. |
| */ |
| virtual bool isInf() const |
| { |
| return false; |
| } |
| |
| virtual Item toNegated() const |
| { |
| return Integer::fromValue(-xsInteger(m_value)); |
| } |
| |
| virtual bool isSigned() const |
| { |
| switch(DerivedType) |
| { |
| /* Fallthrough all these. */ |
| case TypeByte: |
| case TypeInt: |
| case TypeLong: |
| case TypeNegativeInteger: |
| case TypeNonNegativeInteger: |
| case TypeNonPositiveInteger: |
| case TypePositiveInteger: |
| case TypeShort: |
| return true; |
| /* Fallthrough all these. */ |
| case TypeUnsignedByte: |
| case TypeUnsignedInt: |
| case TypeUnsignedLong: |
| case TypeUnsignedShort: |
| return false; |
| } |
| return false; |
| } |
| |
| virtual qulonglong toUnsignedInteger() const |
| { |
| switch(DerivedType) |
| { |
| /* Fallthrough all these. */ |
| case TypeByte: |
| case TypeInt: |
| case TypeLong: |
| case TypeNegativeInteger: |
| case TypeNonNegativeInteger: |
| case TypeNonPositiveInteger: |
| case TypePositiveInteger: |
| case TypeShort: |
| Q_ASSERT_X(false, Q_FUNC_INFO, |
| "It makes no sense to call this function, see Numeric::toUnsignedInteger()."); |
| /* Fallthrough all these. */ |
| case TypeUnsignedByte: |
| case TypeUnsignedInt: |
| case TypeUnsignedLong: |
| case TypeUnsignedShort: |
| return m_value; |
| } |
| return 0; |
| } |
| |
| }; |
| } |
| |
| QT_END_NAMESPACE |
| |
| QT_END_HEADER |
| |
| #endif |
