source: trunk/src/xmlpatterns/data/qatomicvalue.cpp@ 615

/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation ([email protected])
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at [email protected].
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QVariant>

#include "qabstractdatetime_p.h"
#include "qabstractfloat_p.h"
#include "qatomicstring_p.h"
#include "qatomictype_p.h"
#include "qboolean_p.h"
#include "qbuiltintypes_p.h"
#include "qdate_p.h"
#include "qschemadatetime_p.h"
#include "qderivedinteger_p.h"
#include "qdynamiccontext_p.h"
#include "qgenericsequencetype_p.h"
#include "qhexbinary_p.h"
#include "qinteger_p.h"
#include "qpatternistlocale_p.h"
#include "qqnamevalue_p.h"
#include "qschematime_p.h"
#include "qvalidationerror_p.h"

#include "qitem_p.h"

QT_BEGIN_NAMESPACE

/**
 * @file
 * @short Contains the implementation for AtomicValue. The defintion is in qitem_p.h.
 */

using namespace QPatternist;

AtomicValue::~AtomicValue()
{
}

bool AtomicValue::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &context) const
{
    context->error(QtXmlPatterns::tr("A value of type %1 cannot have an "
                                     "Effective Boolean Value.")
                      .arg(formatType(context->namePool(), type())),
                      ReportContext::FORG0006,
                      QSourceLocation());
    return false; /* Silence GCC warning. */
}

bool AtomicValue::hasError() const
{
    return false;
}

QVariant AtomicValue::toQt(const AtomicValue *const value)
{
    Q_ASSERT_X(value, Q_FUNC_INFO,
               "Internal error, a null pointer cannot be passed.");

    const ItemType::Ptr t(value->type());

    if(BuiltinTypes::xsString->xdtTypeMatches(t)
       || BuiltinTypes::xsUntypedAtomic->xdtTypeMatches(t)
       || BuiltinTypes::xsAnyURI->xdtTypeMatches(t))
        return value->stringValue();
    /* Note, this occurs before the xsInteger test, since xs:unsignedLong
     * is a subtype of it. */
    else if(*BuiltinTypes::xsUnsignedLong == *t)
        return QVariant(value->as<DerivedInteger<TypeUnsignedLong> >()->storedValue());
    else if(BuiltinTypes::xsInteger->xdtTypeMatches(t))
        return QVariant(value->as<Numeric>()->toInteger());
    else if(BuiltinTypes::xsFloat->xdtTypeMatches(t)
            || BuiltinTypes::xsDouble->xdtTypeMatches(t)
            || BuiltinTypes::xsDecimal->xdtTypeMatches(t))
        return QVariant(value->as<Numeric>()->toDouble());
    /* We currently does not support xs:time. */
    else if(BuiltinTypes::xsDateTime->xdtTypeMatches(t))
        return QVariant(value->as<AbstractDateTime>()->toDateTime());
    else if(BuiltinTypes::xsDate->xdtTypeMatches(t))
        return QVariant(value->as<AbstractDateTime>()->toDateTime().toUTC().date());
    else if(BuiltinTypes::xsBoolean->xdtTypeMatches(t))
        return QVariant(value->as<Boolean>()->value());
    else if(BuiltinTypes::xsBase64Binary->xdtTypeMatches(t)
            || BuiltinTypes::xsHexBinary->xdtTypeMatches(t))
        return QVariant(value->as<Base64Binary>()->asByteArray());
    else if(BuiltinTypes::xsQName->xdtTypeMatches(t))
        return qVariantFromValue(value->as<QNameValue>()->qName());
    else
    {
        /* A type we don't support in Qt. Includes xs:time currently. */
        return QVariant();
    }
}

Item AtomicValue::toXDM(const QVariant &value)
{
    Q_ASSERT_X(value.isValid(), Q_FUNC_INFO,
               "QVariants sent to Patternist must be valid.");

    switch(value.userType())
    {
        case QVariant::Char:
        /* Fallthrough. A single codepoint is a string in XQuery. */
        case QVariant::String:
            return AtomicString::fromValue(value.toString());
        case QVariant::Url: