indexedducontext.cpp

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/* This file is part of KDevelop
    Copyright 2006 Hamish Rodda <[email protected]>
    Copyright 2007-2009 David Nolden <[email protected]>
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.
 
   This library 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
 */
 
#include "indexedducontext.h"
 
#include "ducontext.h"
#include "ducontextdata.h"
#include "ducontextdynamicdata.h"
#include "topducontext.h"
#include "duchain.h"
#include "topducontextdynamicdata.h"
 
using namespace KDevelop;
 
IndexedDUContext::IndexedDUContext(uint topContext, uint contextIndex)
    : m_topContext(topContext)
    , m_contextIndex(contextIndex)
{
}
 
IndexedDUContext::IndexedDUContext(DUContext* ctx)
{
    if (ctx) {
        m_topContext = ctx->topContext()->ownIndex();
        m_contextIndex = ctx->m_dynamicData->m_indexInTopContext;
    } else {
        m_topContext = 0;
        m_contextIndex = 0;
    }
}
 
IndexedTopDUContext IndexedDUContext::indexedTopContext() const
{
    if (isDummy()) {
        return IndexedTopDUContext();
    }
    return IndexedTopDUContext(m_topContext);
}
 
DUContext* IndexedDUContext::context() const
{
    if (isDummy())
        return nullptr;
//   ENSURE_CHAIN_READ_LOCKED
    if (!m_topContext)
        return nullptr;
 
    TopDUContext* ctx = DUChain::self()->chainForIndex(m_topContext);
    if (!ctx)
        return nullptr;
 
    if (!m_contextIndex)
        return ctx;
 
    return ctx->m_dynamicData->contextForIndex(m_contextIndex);
}