1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
11 ** License version 2.1 as published by the Free Software Foundation and
12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
14 ** General Public License version 2.1 requirements will be met:
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17 ** In addition, as a special exception, Nokia gives you certain additional
18 ** rights. These rights are described in the Nokia Qt LGPL Exception
19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
24 ** and appearing in the file LICENSE.GPL included in the packaging of this
25 ** file. Please review the following information to ensure the GNU General
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40 ****************************************************************************/
42 #include "qboolean_p.h"
43 #include "qdelegatingnamespaceresolver_p.h"
44 #include "qinteger_p.h"
45 #include "qqnameconstructor_p.h"
47 #include "qfunctionavailablefn_p.h"
51 using namespace QPatternist;
53 Item FunctionAvailableFN::evaluateSingleton(const DynamicContext::Ptr &context) const
55 const QString lexQName(m_operands.first()->evaluateSingleton(context).stringValue());
57 NamespaceResolver::Bindings override;
58 override.insert(StandardPrefixes::empty, m_defFuncNS);
60 const NamespaceResolver::Ptr resolver(new DelegatingNamespaceResolver(staticNamespaces(), override));
63 (QNameConstructor::expandQName<DynamicContext::Ptr,
64 ReportContext::XTDE1400,
65 ReportContext::XTDE1400>(lexQName,
72 if(m_operands.count() == 2)
73 arity = m_operands.at(1)->evaluateSingleton(context).as<Numeric>()->toInteger();
75 arity = FunctionSignature::UnlimitedArity;
77 return Boolean::fromValue(m_functionFactory->isAvailable(context->namePool(), name, arity));
80 Expression::Ptr FunctionAvailableFN::typeCheck(const StaticContext::Ptr &context,
81 const SequenceType::Ptr &reqType)
83 m_functionFactory = context->functionSignatures();
84 Q_ASSERT(m_functionFactory);
85 m_defFuncNS = context->namePool()->allocateNamespace(context->defaultFunctionNamespace());
86 /* m_defFuncNS can be empty/null or an actual value. */
88 return StaticNamespacesContainer::typeCheck(context, reqType);