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Diffstat (limited to 'src/xmlpatterns/functions/qfunctionavailablefn.cpp')
| -rw-r--r-- | src/xmlpatterns/functions/qfunctionavailablefn.cpp | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/xmlpatterns/functions/qfunctionavailablefn.cpp b/src/xmlpatterns/functions/qfunctionavailablefn.cpp new file mode 100644 index 0000000..20c08fa --- /dev/null +++ b/src/xmlpatterns/functions/qfunctionavailablefn.cpp @@ -0,0 +1,91 @@ +/**************************************************************************** +** +** 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 "qboolean_p.h" +#include "qdelegatingnamespaceresolver_p.h" +#include "qinteger_p.h" +#include "qqnameconstructor_p.h" + +#include "qfunctionavailablefn_p.h" + +QT_BEGIN_NAMESPACE + +using namespace QPatternist; + +Item FunctionAvailableFN::evaluateSingleton(const DynamicContext::Ptr &context) const +{ + const QString lexQName(m_operands.first()->evaluateSingleton(context).stringValue()); + + NamespaceResolver::Bindings override; + override.insert(StandardPrefixes::empty, m_defFuncNS); + + const NamespaceResolver::Ptr resolver(new DelegatingNamespaceResolver(staticNamespaces(), override)); + + const QXmlName name + (QNameConstructor::expandQName<DynamicContext::Ptr, + ReportContext::XTDE1400, + ReportContext::XTDE1400>(lexQName, + context, + resolver, + this)); + + xsInteger arity; + + if(m_operands.count() == 2) + arity = m_operands.at(1)->evaluateSingleton(context).as<Numeric>()->toInteger(); + else + arity = FunctionSignature::UnlimitedArity; + + return Boolean::fromValue(m_functionFactory->isAvailable(context->namePool(), name, arity)); +} + +Expression::Ptr FunctionAvailableFN::typeCheck(const StaticContext::Ptr &context, + const SequenceType::Ptr &reqType) +{ + m_functionFactory = context->functionSignatures(); + Q_ASSERT(m_functionFactory); + m_defFuncNS = context->namePool()->allocateNamespace(context->defaultFunctionNamespace()); + /* m_defFuncNS can be empty/null or an actual value. */ + + return StaticNamespacesContainer::typeCheck(context, reqType); +} + +QT_END_NAMESPACE |