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Diffstat (limited to 'src/xmlpatterns/functions/qabstractfunctionfactory.cpp')
| -rw-r--r-- | src/xmlpatterns/functions/qabstractfunctionfactory.cpp | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/xmlpatterns/functions/qabstractfunctionfactory.cpp b/src/xmlpatterns/functions/qabstractfunctionfactory.cpp new file mode 100644 index 0000000..6d901aa --- /dev/null +++ b/src/xmlpatterns/functions/qabstractfunctionfactory.cpp @@ -0,0 +1,103 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 qt-sales@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 |