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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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 are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qforclause_p.h"
#include "qfunctionfactory_p.h"
#include "qrangevariablereference_p.h"
#include "qdocumentfn_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
Expression::Ptr DocumentFN::typeCheck(const StaticContext::Ptr &context,
const SequenceType::Ptr &reqType)
{
/* See the class documentation for the rewrite that we're doing here. */
/* Generate type checking code for our operands such that they match. */
typeCheckOperands(context);
const QSourceLocation myLocation(context->locationFor(this));
const FunctionFactory::Ptr functions(context->functionSignatures());
Expression::Ptr uriSource;
{
Expression::List distinctValuesArgs;
distinctValuesArgs.append(m_operands.first());
uriSource = functions->createFunctionCall(QXmlName(StandardNamespaces::fn, StandardLocalNames::distinct_values),
distinctValuesArgs,
context,
this);
context->addLocation(uriSource.data(), myLocation);
}
const VariableSlotID rangeSlot = context->allocateRangeSlot();
const Expression::Ptr uriReference(new RangeVariableReference(uriSource, rangeSlot));
context->addLocation(uriReference.data(), myLocation);
Expression::List docArgs;
if(m_operands.count() == 2)
{
Expression::List baseUriArgs;
baseUriArgs.append(uriReference);
baseUriArgs.append(m_operands.at(1));
const Expression::Ptr fnBaseUri(functions->createFunctionCall(QXmlName(StandardNamespaces::fn, StandardLocalNames::resolve_uri),
baseUriArgs,
context,
this));
context->addLocation(fnBaseUri.data(), myLocation);
docArgs.append(fnBaseUri);
}
else
docArgs.append(uriReference);
const Expression::Ptr fnDoc(functions->createFunctionCall(QXmlName(StandardNamespaces::fn, StandardLocalNames::doc),
docArgs,
context,
this));
context->addLocation(fnDoc.data(), myLocation);
Expression::Ptr newMe(new ForClause(rangeSlot,
uriSource,
fnDoc,
-1 /* We have no position variable. */));
Expression::Ptr oldMe(this);
rewrite(oldMe, newMe, context);
return newMe->typeCheck(context, reqType);
}
QT_END_NAMESPACE
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