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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 Technology Preview License Agreement accompanying
** this package.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qpatternistlocale_p.h"
#include "qabstractfunctionfactory_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
Expression::Ptr AbstractFunctionFactory::createFunctionCall(const QXmlName name,
const Expression::List &args,
const StaticContext::Ptr &context,
const SourceLocationReflection *const r)
{
const FunctionSignature::Ptr sign(retrieveFunctionSignature(context->namePool(), name));
if(!sign) /* The function doesn't exist(at least not in this factory). */
return Expression::Ptr();
/* May throw. */
verifyArity(sign, context, args.count(), r);
/* Ok, the function does exist and the arity is correct. */
return retrieveExpression(name, args, sign);
}
void AbstractFunctionFactory::verifyArity(const FunctionSignature::Ptr &s,
const StaticContext::Ptr &context,
const xsInteger arity,
const SourceLocationReflection *const r) const
{
/* Same code in both branches, but more specific error messages in order
* to improve usability. */
if(s->maximumArguments() != FunctionSignature::UnlimitedArity &&
arity > s->maximumArguments())
{
context->error(QtXmlPatterns::tr("%1 takes at most %n argument(s). "
"%2 is therefore invalid.", 0, s->maximumArguments())
.arg(formatFunction(context->namePool(), s))
.arg(arity),
ReportContext::XPST0017,
r);
return;
}
if(arity < s->minimumArguments())
{
context->error(QtXmlPatterns::tr("%1 requires at least %n argument(s). "
"%2 is therefore invalid.", 0, s->minimumArguments())
.arg(formatFunction(context->namePool(), s))
.arg(arity),
ReportContext::XPST0017,
r);
return;
}
}
FunctionSignature::Hash AbstractFunctionFactory::functionSignatures() const
{
return m_signatures;
}
QT_END_NAMESPACE
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