QPatternist::Boolean Class Reference

Implements the value instance of the xs:boolean type. More...

#include <qboolean_p.h>

Inheritance diagram for QPatternist::Boolean:

Public Types
typedef AtomicValue::Ptr	Ptr
Public Types inherited from QPatternist::AtomicValue
typedef QList< AtomicValue::Ptr >	List
typedef QExplicitlySharedDataPointer< AtomicValue >	Ptr

Public Functions
virtual bool	evaluateEBV (const QExplicitlySharedDataPointer< DynamicContext > &) const
virtual QString	stringValue () const
virtual ItemType::Ptr	type () const
bool	value () const
Public Functions inherited from QPatternist::AtomicValue
virtual bool	hasError () const
virtual	~AtomicValue ()
Public Functions inherited from QSharedData
	QSharedData ()
	Constructs a QSharedData object with a reference count of 0. More...
	QSharedData (const QSharedData &)
	Constructs a QSharedData object with reference count 0. More...
Public Functions inherited from QPatternist::CppCastingHelper< AtomicValue >
const TCastTarget *	as () const
TCastTarget *	as ()

Static Public Functions
static bool	evaluateEBV (const Item::Iterator::Ptr &e, const QExplicitlySharedDataPointer< DynamicContext > &)
static bool	evaluateEBV (const Item &first, const Item::Iterator::Ptr &e, const QExplicitlySharedDataPointer< DynamicContext > &)
static bool	evaluateEBV (const Item &item, const QExplicitlySharedDataPointer< DynamicContext > &context)
static AtomicValue::Ptr	fromLexical (const QString &val)
static Boolean::Ptr	fromValue (const bool value)
Static Public Functions inherited from QPatternist::AtomicValue
static ItemType::Ptr	qtToXDMType (const QXmlItem &item)
static QVariant	toQt (const AtomicValue *const value)
static QVariant	toQt (const AtomicValue::Ptr &value)
static Item	toXDM (const QVariant &value)

Protected Functions
	Boolean (const bool value)
Protected Functions inherited from QPatternist::AtomicValue
	AtomicValue ()
Protected Functions inherited from QPatternist::CppCastingHelper< AtomicValue >
	CppCastingHelper ()

Properties
const bool	m_value

Friends
class	CommonValues

Additional Inherited Members
Public Variables inherited from QSharedData
QAtomicInt	ref

Detailed Description

Implements the value instance of the xs:boolean type.

Author

Frans Englich frans.nosp@m..eng.nosp@m.lich@.nosp@m.noki.nosp@m.a.com

Definition at line 69 of file qboolean_p.h.

Typedefs

Ptr

typedef AtomicValue::Ptr QPatternist::Boolean::Ptr

Definition at line 72 of file qboolean_p.h.

Constructors and Destructors

Boolean()

Boolean::Boolean ( const bool  value )

protected

Definition at line 99 of file qboolean.cpp.

                                 : m_value(value)
{
}

Functions

evaluateEBV() [1/4]

bool Boolean::evaluateEBV ( const Item::Iterator::Ptr &  e, const QExplicitlySharedDataPointer< DynamicContext > &  context  )

static

Returns

the boolean value this Boolean represents

Definition at line 55 of file qboolean.cpp.

Referenced by evaluateEBV(), QPatternist::RangeVariableReference::evaluateEBV(), QPatternist::Literal::evaluateEBV(), QPatternist::ExternalVariableLoader::evaluateEBV(), QPatternist::Expression::evaluateEBV(), and QPatternist::GenericPredicate::mapToItem().

{
    return evaluateEBV(it->next(), it, context);
}

evaluateEBV() [2/4]

bool Boolean::evaluateEBV ( const Item &  first, const Item::Iterator::Ptr &  e, const QExplicitlySharedDataPointer< DynamicContext > &  context  )

static

Definition at line 61 of file qboolean.cpp.

{
    Q_ASSERT(it);
    Q_ASSERT(context);

    if(!first)
        return false;
    else if(first.isNode())
        return true;

    const Item second(it->next());

    if(second)
    {
        Q_ASSERT(context);
        context->error(QtXmlPatterns::tr("Effective Boolean Value cannot be calculated for a sequence "
                                         "containing two or more atomic values."),
                          ReportContext::FORG0006,
                          QSourceLocation());
        return false;
    }
    else
        return first.as<AtomicValue>()->evaluateEBV(context);
}

evaluateEBV() [3/4]

bool Boolean::evaluateEBV ( const Item &  item, const QExplicitlySharedDataPointer< DynamicContext > &  context  )

static

Definition at line 88 of file qboolean.cpp.

{
    if(!item)
        return false;
    else if(item.isNode())
        return true;
    else
        return item.as<AtomicValue>()->evaluateEBV(context);
}

evaluateEBV() [4/4]

bool Boolean::evaluateEBV ( const QExplicitlySharedDataPointer< DynamicContext > &  ) const

virtual

Get the Effective Boolean Value of this boolean value. For xs:boolean, this is simply the value.

Reimplemented from QPatternist::AtomicValue.

Definition at line 110 of file qboolean.cpp.

{
    return m_value;
}

fromLexical()

AtomicValue::Ptr Boolean::fromLexical ( const QString &  val )

static

Creates a boolean value from a lexical representation. "true" and "1" becomes true, while "false" and "0" becomes false.

Definition at line 120 of file qboolean.cpp.

Referenced by QPatternist::StringToBooleanCaster::castFrom(), QPatternist::XsdSchemaParser::parseComplexContent(), QPatternist::XsdSchemaParser::parseDefaultOpenContent(), QPatternist::XsdSchemaParser::parseFractionDigitsFacet(), QPatternist::XsdSchemaParser::parseGlobalComplexType(), QPatternist::XsdSchemaParser::parseGlobalElement(), QPatternist::XsdSchemaParser::parseLengthFacet(), QPatternist::XsdSchemaParser::parseLocalComplexType(), QPatternist::XsdSchemaParser::parseLocalElement(), QPatternist::XsdSchemaParser::parseMaxExclusiveFacet(), QPatternist::XsdSchemaParser::parseMaxInclusiveFacet(), QPatternist::XsdSchemaParser::parseMaxLengthFacet(), QPatternist::XsdSchemaParser::parseMinExclusiveFacet(), QPatternist::XsdSchemaParser::parseMinInclusiveFacet(), QPatternist::XsdSchemaParser::parseMinLengthFacet(), QPatternist::XsdSchemaParser::parseTotalDigitsFacet(), QPatternist::XsdSchemaParser::parseWhiteSpaceFacet(), and QPatternist::XsdValidatingInstanceReader::validateElement().

{
    const QString val(lexical.trimmed()); /* Apply the whitespace facet. */

    if(val == QLatin1String("true") || val == QChar(QLatin1Char('1')))
        return CommonValues::BooleanTrue;
    else if(val == QLatin1String("false") || val == QChar(QLatin1Char('0')))
        return CommonValues::BooleanFalse;
    else
        return ValidationError::createError();
}

fromValue()

Boolean::Ptr Boolean::fromValue ( const bool  value )

static

Returns

a Boolean object instantiating value. Use True() or False() if you already know what value you need.

Definition at line 115 of file qboolean.cpp.

Referenced by QPatternist::FunctionAvailableFN::evaluateSingleton(), QPatternist::TypeAvailableFN::evaluateSingleton(), QPatternist::ContainsFN::evaluateSingleton(), QPatternist::CodepointEqualFN::evaluateSingleton(), QPatternist::MatchesFN::evaluateSingleton(), QPatternist::ValueComparison::evaluateSingleton(), QPatternist::StartsWithFN::evaluateSingleton(), QPatternist::EndsWithFN::evaluateSingleton(), QPatternist::ExternalVariableLoader::evaluateSingleton(), QPatternist::Expression::evaluateSingleton(), and QPatternist::AtomicValue::toXDM().

{
    return value ? CommonValues::BooleanTrue : CommonValues::BooleanFalse;
}

stringValue()

QString Boolean::stringValue ( ) const

virtual

Implements QPatternist::AtomicValue.

Definition at line 103 of file qboolean.cpp.

{
    return m_value
            ? CommonValues::TrueString->stringValue()
            : CommonValues::FalseString->stringValue();
}

type()

ItemType::Ptr Boolean::type ( ) const

virtual

Implements QPatternist::AtomicValue.

Definition at line 132 of file qboolean.cpp.

{
    return BuiltinTypes::xsBoolean;
}

value()

bool QPatternist::Boolean::value ( ) const

inline

Definition at line 109 of file qboolean_p.h.

Referenced by QPatternist::XsdTypeChecker::checkConstrainingFacets(), QPatternist::XsdSchemaParser::parseFractionDigitsFacet(), QPatternist::XsdSchemaParser::parseGlobalComplexType(), QPatternist::XsdSchemaParser::parseGlobalElement(), QPatternist::XsdSchemaParser::parseLengthFacet(), QPatternist::XsdSchemaParser::parseLocalElement(), QPatternist::XsdSchemaParser::parseMaxExclusiveFacet(), QPatternist::XsdSchemaParser::parseMaxInclusiveFacet(), QPatternist::XsdSchemaParser::parseMaxLengthFacet(), QPatternist::XsdSchemaParser::parseMinExclusiveFacet(), QPatternist::XsdSchemaParser::parseMinInclusiveFacet(), QPatternist::XsdSchemaParser::parseMinLengthFacet(), QPatternist::XsdSchemaParser::parseTotalDigitsFacet(), QPatternist::XsdSchemaParser::parseWhiteSpaceFacet(), QPatternist::AtomicValue::toQt(), and QPatternist::XsdValidatingInstanceReader::validateElement().

        {
            return m_value;
        }

Friends and Related Functions

CommonValues

friend class CommonValues

friend

Definition at line 115 of file qboolean_p.h.

Properties

m_value

const bool QPatternist::Boolean::m_value

private

Definition at line 119 of file qboolean_p.h.

Referenced by evaluateEBV(), and stringValue().

---

The documentation for this class was generated from the following files:

• /src/xmlpatterns/data/qboolean_p.h
• /src/xmlpatterns/data/qboolean.cpp