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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
**************************************************************************/
#ifndef CDBSYMBOLGROUPCONTEXT_TPL_H
#define CDBSYMBOLGROUPCONTEXT_TPL_H
#include <QtCore/QDebug>
namespace Debugger {
namespace Internal {
enum { debugSgRecursion = 0 };
/* inline static */ bool CdbSymbolGroupContext::isSymbolDisplayable(const DEBUG_SYMBOL_PARAMETERS &p)
{
if (p.Flags & (DEBUG_SYMBOL_IS_LOCAL|DEBUG_SYMBOL_IS_ARGUMENT))
return true;
// Do not display static members.
if (p.Flags & DEBUG_SYMBOL_READ_ONLY)
return false;
return true;
}
template <class OutputIterator>
bool CdbSymbolGroupContext::getChildSymbols(const QString &prefix, OutputIterator it, QString *errorMessage)
{
unsigned long start;
unsigned long parentId;
if (!getChildSymbolsPosition(prefix, &start, &parentId, errorMessage))
return false;
// Skip over expanded children
const unsigned long end = m_symbolParameters.size();
for (unsigned long s = start; s < end; ++s) {
const DEBUG_SYMBOL_PARAMETERS &p = m_symbolParameters.at(s);
if (p.ParentSymbol == parentId && isSymbolDisplayable(p)) {
*it = symbolAt(s);
++it;
}
}
return true;
}
template <class OutputIterator>
bool insertChildrenRecursion(const QString &iname,
CdbSymbolGroupContext *sg,
OutputIterator it,
int maxRecursionLevel,
int level,
QString *errorMessage,
int *childCount = 0);
// Insert a symbol (and its first level children depending on forceRecursion)
template <class OutputIterator>
bool insertSymbolRecursion(WatchData wd,
CdbSymbolGroupContext *sg,
OutputIterator it,
int maxRecursionLevel,
int level,
QString *errorMessage)
{
// Find out whether to recurse (has children or at least knows it has children)
// Open next level if specified by recursion depth or child is already expanded
// (Sometimes, some root children are already expanded after creating the context).
const bool hasChildren = wd.childCount > 0 || wd.isChildrenNeeded();
const bool recurse = hasChildren && (level < maxRecursionLevel || sg->isExpanded(wd.iname));
if (debugSgRecursion)
qDebug() << Q_FUNC_INFO << '\n' << wd.iname << "level=" << level << "recurse=" << recurse;
bool rc = true;
if (recurse) { // Determine number of children and indicate in model
int childCount;
rc = insertChildrenRecursion(wd.iname, sg, it, maxRecursionLevel, level, errorMessage, &childCount);
if (rc) {
wd.setChildCount(childCount);
wd.setChildrenUnneeded();
}
} else {
// No further recursion at this level, pretend entry is complete
if (wd.isChildrenNeeded()) {
wd.setChildCount(1);
wd.setChildrenUnneeded();
}
}
if (debugSgRecursion)
qDebug() << " INSERTING: at " << level << wd.toString();
*it = wd;
++it;
return rc;
}
// Insert the children of prefix.
template <class OutputIterator>
bool insertChildrenRecursion(const QString &iname,
CdbSymbolGroupContext *sg,
OutputIterator it,
int maxRecursionLevel,
int level,
QString *errorMessage,
int *childCountPtr)
{
if (debugSgRecursion > 1)
qDebug() << Q_FUNC_INFO << '\n' << iname << level;
QList<WatchData> watchList;
// This implicitly enforces expansion
if (!sg->getChildSymbols(iname, WatchDataBackInserter(watchList), errorMessage))
return false;
const int childCount = watchList.size();
if (childCountPtr)
*childCountPtr = childCount;
int succeededChildCount = 0;
for (int c = 0; c < childCount; c++) {
const WatchData &wd = watchList.at(c);
if (wd.isValid()) { // We sometimes get empty names for deeply nested data
if (!insertSymbolRecursion(wd, sg, it, maxRecursionLevel, level + 1, errorMessage))
return false;
succeededChildCount++;
} else {
const QString msg = QString::fromLatin1("WARNING: Skipping invalid child symbol #%2 (type %3) of '%4'.").
arg(QLatin1String(Q_FUNC_INFO)).arg(c).arg(wd.type, iname);
qWarning("%s\n", qPrintable(msg));
}
}
if (childCountPtr)
*childCountPtr = succeededChildCount;
return true;
}
template <class OutputIterator>
bool CdbSymbolGroupContext::populateModelInitially(CdbSymbolGroupContext *sg,
QSet<QString> expandedINames,
OutputIterator it,
QString *errorMessage)
{
if (debugSgRecursion)
qDebug() << "###" << Q_FUNC_INFO;
// Insert root items
QList<WatchData> watchList;
if (!sg->getChildSymbols(sg->prefix(), WatchDataBackInserter(watchList), errorMessage))
return false;
// (Recursively) expand symbols stored as expanded in the history until no more matches
// are found.
while (!expandedINames.empty()) {
unsigned matchCount = 0;
for (QSet<QString>::iterator it = expandedINames.begin(); it != expandedINames.end(); ) {
// Try to expand. We might hit on a leaf due to name mismatches, ignore errors.
unsigned long index;
if (sg->lookupPrefix(*it, &index)) {
if (!sg->expandSymbol(*it, index, errorMessage))
qWarning("%s\n", qPrintable(*errorMessage));
matchCount++;
it = expandedINames.erase(it);
} else {
++it;
}
} // loop set
if (matchCount == 0)
break;
}
// Insert data
foreach(const WatchData &wd, watchList)
if (!insertSymbolRecursion(wd, sg, it, 0, 0, errorMessage))
return false;
return true;
}
template <class OutputIterator>
bool CdbSymbolGroupContext::completeModel(CdbSymbolGroupContext *sg,
const QList<WatchData> &incompleteLocals,
OutputIterator it,
QString *errorMessage)
{
if (debugSgRecursion)
qDebug().nospace() << "###>" << Q_FUNC_INFO << ' ' << incompleteLocals.size() << '\n';
// The view reinserts any node being expanded with flag 'ChildrenNeeded'.
// Recurse down one level in context unless this is already the case.
foreach(WatchData wd, incompleteLocals) {
const bool contextExpanded = sg->isExpanded(wd.iname);
if (debugSgRecursion)
qDebug() << " " << wd.iname << "CE=" << contextExpanded;
if (contextExpanded) { // You know that already.
wd.setChildrenUnneeded();
*it = wd;
++it;
} else {
if (!insertSymbolRecursion(wd, sg, it, 1, 0, errorMessage))
return false;
}
}
return true;
}
} // namespace Internal
} // namespace Debugger
#endif // CDBSYMBOLGROUPCONTEXT_TPL_H
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