src/xmlpatterns/expr/qcalltemplate.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
       
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     9 ** $QT_BEGIN_LICENSE:LGPL$
       
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    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
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    20 ** packaging of this file.  Please review the following information to
       
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    29 ** Nokia at qt-info@nokia.com.
       
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    33 **
       
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    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "qcommonsequencetypes_p.h"
       
    43 
       
    44 #include "qcalltemplate_p.h"
       
    45 
       
    46 QT_BEGIN_NAMESPACE
       
    47 
       
    48 using namespace QPatternist;
       
    49 
       
    50 CallTemplate::CallTemplate(const QXmlName &name,
       
    51                            const WithParam::Hash &withParams) : TemplateInvoker(withParams, name)
       
    52 {
       
    53 }
       
    54 
       
    55 Item::Iterator::Ptr CallTemplate::evaluateSequence(const DynamicContext::Ptr &context) const
       
    56 {
       
    57     Q_ASSERT(m_template);
       
    58     return m_template->body->evaluateSequence(m_template->createContext(this, context, true));
       
    59 }
       
    60 
       
    61 bool CallTemplate::evaluateEBV(const DynamicContext::Ptr &context) const
       
    62 {
       
    63     Q_ASSERT(m_template);
       
    64     return m_template->body->evaluateEBV(m_template->createContext(this, context, true));
       
    65 }
       
    66 
       
    67 void CallTemplate::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
       
    68 {
       
    69     Q_ASSERT(m_template);
       
    70     m_template->body->evaluateToSequenceReceiver(m_template->createContext(this, context, true));
       
    71 }
       
    72 
       
    73 Expression::Ptr CallTemplate::typeCheck(const StaticContext::Ptr &context,
       
    74                                         const SequenceType::Ptr &reqType)
       
    75 {
       
    76     /* Check XTSE0680, that every @c xsl:with-param has a corresponding @c
       
    77      * xsl:param declaration. */
       
    78     {
       
    79         const WithParam::Hash::const_iterator end(m_withParams.constEnd());
       
    80 
       
    81         for(WithParam::Hash::const_iterator it(m_withParams.constBegin());
       
    82             it != end;
       
    83             ++it)
       
    84         {
       
    85             if(!VariableDeclaration::contains(m_template->templateParameters, it.value()->name()))
       
    86                 Template::raiseXTSE0680(context, it.value()->name(), this);
       
    87         }
       
    88     }
       
    89 
       
    90     const Expression::Ptr me(TemplateInvoker::typeCheck(context, reqType));
       
    91 
       
    92     const VariableDeclaration::List args(m_template->templateParameters);
       
    93     const VariableDeclaration::List::const_iterator end(args.constEnd());
       
    94     VariableDeclaration::List::const_iterator it(args.constBegin());
       
    95 
       
    96     for(; it != end; ++it)
       
    97     {
       
    98         // TODO
       
    99         Q_ASSERT((*it)->sequenceType);
       
   100     }
       
   101 
       
   102     return me;
       
   103 }
       
   104 
       
   105 Expression::Properties CallTemplate::properties() const
       
   106 {
       
   107     Q_ASSERT(!m_template || m_template->body);
       
   108 
       
   109     /* We may be called before our m_template is resolved, namely when we're
       
   110      * the body of a variable. In that case querytransformparser.ypp will
       
   111      * manually call TypeChecker::applyFunctionConversion(), which is before
       
   112      * ExpressionFactory::createExpression() has resolved us. */
       
   113     if(m_template && !isRecursive())
       
   114         return m_template->properties();
       
   115     else
       
   116         return Properties();
       
   117 }
       
   118 
       
   119 Expression::Properties CallTemplate::dependencies() const
       
   120 {
       
   121     if(m_template && !isRecursive())
       
   122         return m_template->dependencies();
       
   123     else
       
   124         return Properties();
       
   125 }
       
   126 
       
   127 SequenceType::Ptr CallTemplate::staticType() const
       
   128 {
       
   129     return CommonSequenceTypes::ZeroOrMoreItems;
       
   130 }
       
   131 
       
   132 ExpressionVisitorResult::Ptr CallTemplate::accept(const ExpressionVisitor::Ptr &visitor) const
       
   133 {
       
   134     return visitor->visit(this);
       
   135 }
       
   136 
       
   137 bool CallTemplate::configureRecursion(const CallTargetDescription::Ptr &sign)
       
   138 {
       
   139     Q_UNUSED(sign);
       
   140     return false;
       
   141 }
       
   142 
       
   143 Expression::Ptr CallTemplate::body() const
       
   144 {
       
   145     return m_template->body;
       
   146 }
       
   147 
       
   148 CallTargetDescription::Ptr CallTemplate::callTargetDescription() const
       
   149 {
       
   150     return CallTargetDescription::Ptr();
       
   151 }
       
   152 
       
   153 QT_END_NAMESPACE