File indexing completed on 2024-04-28 04:34:21

 /***************************************************************************
  *   Copyright 2009 Sandro Andrade <sandroandrade@kde.org>                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU Library General Public License as       *
  *   published by the Free Software Foundation; either version 2 of the    *
  *   License, or (at your option) any later version.                       *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU Library General Public     *
  *   License along with this program; if not, write to the                 *
  *   Free Software Foundation, Inc.,                                       *
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  ***************************************************************************/
 
 #include "controlflowgraphusescollector.h"
 
 #include <language/duchain/use.h>
 #include <language/duchain/duchain.h>
 #include <language/duchain/declaration.h>
 #include <language/duchain/duchainlock.h>
 
 using namespace KDevelop;
 
 ControlFlowGraphUsesCollector::ControlFlowGraphUsesCollector(IndexedDeclaration declaration)
  : UsesCollector(declaration), m_declaration(declaration)
 {
 }
 
 ControlFlowGraphUsesCollector::~ControlFlowGraphUsesCollector()
 {
 }
 
 void ControlFlowGraphUsesCollector::processUses(ReferencedTopDUContext topContext)
 {
     if (topContext.data())
     {
         DUChainReadLocker lock(DUChain::lock());
         CodeRepresentation::Ptr code = createCodeRepresentation(topContext.data()->url());
         processContext(topContext.data(), code);
     }
 }
 
 void ControlFlowGraphUsesCollector::processContext(DUContext *context, CodeRepresentation::Ptr code)
 {
     foreach (const IndexedDeclaration &ideclaration, declarations())
     {
         Declaration *declaration = ideclaration.data();
         if (!declaration)
             continue;
         
         int declarationIndex = context->topContext()->indexForUsedDeclaration(declaration, false);
         if (declarationIndex == std::numeric_limits<int>::max())
             continue;
         
         int usesCount = context->usesCount();
         for (int useIndex = 0; useIndex < usesCount; ++useIndex)
         {
             if (context->uses()[useIndex].m_declarationIndex == declarationIndex)
             {
                 // Navigate to uppermost executable context
                 DUContext *uppermostExecutableContext = context;
                 while (uppermostExecutableContext->parentContext() && uppermostExecutableContext->parentContext()->type() == DUContext::Other)
                     uppermostExecutableContext = uppermostExecutableContext->parentContext();
 
                 // Get the definition
                 Declaration* definition = 0;
                 if (!uppermostExecutableContext || !uppermostExecutableContext->owner())
                     continue;
                 else
                     definition = uppermostExecutableContext->owner();
 
                 if (!definition) continue;
 
                 emit processFunctionCall(definition, m_declaration.data(), context->uses()[useIndex]);
             }
         }
     }
     foreach (DUContext *child, context->childContexts())
         processContext(child, code);
 }