source: trunk/src/xmlpatterns/expr/qqnameconstructor.cpp@ 651

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** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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#include "qcommonsequencetypes_p.h"
#include "qpatternistlocale_p.h"
#include "qqnamevalue_p.h"

#include "qqnameconstructor_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

QNameConstructor::QNameConstructor(const Expression::Ptr &source,
                                   const NamespaceResolver::Ptr &nsResolver) : SingleContainer(source),
                                                                               m_nsResolver(nsResolver)
{
    Q_ASSERT(m_nsResolver);
}

Item QNameConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    Q_ASSERT(context);
    const QString lexQName(m_operand->evaluateSingleton(context).stringValue());

    const QXmlName expQName(expandQName<DynamicContext::Ptr,
                                        ReportContext::XQDY0074,
                                        ReportContext::XQDY0074>(lexQName,
                                                                 context,
                                                                 m_nsResolver,
                                                                 this));
    return toItem(QNameValue::fromValue(context->namePool(), expQName));
}

QXmlName::NamespaceCode QNameConstructor::namespaceForPrefix(const QXmlName::PrefixCode prefix,
                                                          const StaticContext::Ptr &context,
                                                          const SourceLocationReflection *const r)
{
    Q_ASSERT(context);
    const QXmlName::NamespaceCode ns(context->namespaceBindings()->lookupNamespaceURI(prefix));

    if(ns == NamespaceResolver::NoBinding)
    {
        context->error(QtXmlPatterns::tr("No namespace binding exists for the prefix %1")
                          .arg(formatKeyword(context->namePool()->stringForPrefix(prefix))),
                       ReportContext::XPST0081,
                       r);
        return NamespaceResolver::NoBinding;
    }
    else
        return ns;
}

SequenceType::Ptr QNameConstructor::staticType() const
{
    return CommonSequenceTypes::ExactlyOneQName;
}

SequenceType::List QNameConstructor::expectedOperandTypes() const
{
    SequenceType::List result;
    result.append(CommonSequenceTypes::ExactlyOneString);
    return result;
}

ExpressionVisitorResult::Ptr QNameConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
{
    return visitor->visit(this);
}

const SourceLocationReflection *QNameConstructor::actualReflection() const
{
    return m_operand.data();
}

QT_END_NAMESPACE