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

#include "qbuiltintypes_p.h"
#include "qcommonsequencetypes_p.h"
#include "qatomicstring_p.h"

#include "qncnameconstructor_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

NCNameConstructor::NCNameConstructor(const Expression::Ptr &source) : SingleContainer(source)
{
}

Item NCNameConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    Q_ASSERT(context);
    /* Apply the whitespace facet for when casting to xs:NCName. */
    const QString lexNCName(m_operand->evaluateSingleton(context).stringValue().trimmed());

    validateTargetName<DynamicContext::Ptr,
                       ReportContext::XQDY0064,
                       ReportContext::XQDY0041>(lexNCName,
                                                context,
                                                this);
    return AtomicString::fromValue(lexNCName);
}

Expression::Ptr NCNameConstructor::typeCheck(const StaticContext::Ptr &context,
                                             const SequenceType::Ptr &reqType)
{
    if(BuiltinTypes::xsNCName->xdtTypeMatches(m_operand->staticType()->itemType()))
        return m_operand->typeCheck(context, reqType);
    else
        return SingleContainer::typeCheck(context, reqType);
}

SequenceType::Ptr NCNameConstructor::staticType() const
{
    return CommonSequenceTypes::ExactlyOneString;
}

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

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

QT_END_NAMESPACE