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/*
SPDX-FileCopyrightText: 2012 Sven Brauch <svenbrauch@googlemail.com>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "variablecontroller.h"
#include "variable.h"
#include "debugsession.h"
#include "pdbframestackmodel.h"
#include <codehelpers.h>
#include <language/duchain/duchainlock.h>
#include <language/duchain/declaration.h>
#include <language/duchain/duchain.h>
#include <interfaces/ilanguagecontroller.h>
#include <debugger/variable/variablecollection.h>
#include <debugger/framestack/framestackmodel.h>
#include <interfaces/icore.h>
#include <QStack>
#include <KMessageBox>
#include <KLocalizedString>
#include <QDebug>
#include <QRegularExpression>
#include "debuggerdebug.h"
using namespace KDevelop;
namespace Python {
VariableController::VariableController(IDebugSession* parent) : IVariableController(parent)
{
m_updateTimer.setSingleShot(true);
m_updateTimer.setInterval(100);
QObject::connect(&m_updateTimer, &QTimer::timeout,
this, &VariableController::_update);
}
void VariableController::addWatch(KDevelop::Variable* variable)
{
variableCollection()->watches()->add(variable->expression());
}
void VariableController::addWatchpoint(KDevelop::Variable* /*variable*/)
{
qCWarning(KDEV_PYTHON_DEBUGGER) << "addWatchpoint requested (not implemented)";
}
void VariableController::handleEvent(IDebugSession::event_t event)
{
if ( event == IDebugSession::thread_or_frame_changed ) {
DebugSession* s = static_cast<DebugSession*>(session());
PdbFrameStackModel* model = static_cast<PdbFrameStackModel*>(s->frameStackModel());
int delta = model->currentFrame() - model->debuggerAtFrame();
model->setDebuggerAtFrame(model->currentFrame());
bool positive = delta > 0;
qCDebug(KDEV_PYTHON_DEBUGGER) << "changing frame by" << delta;
for ( int i = delta; i != 0; i += ( positive ? -1 : 1 ) ) {
qCDebug(KDEV_PYTHON_DEBUGGER) << ( positive ? "up" : "down" ) << model->currentFrame() << model->debuggerAtFrame();
s->addSimpleInternalCommand(positive ? QStringLiteral("up") : QStringLiteral("down"));
}
}
KDevelop::IVariableController::handleEvent(event);
}
KDevelop::Variable* VariableController::createVariable(KDevelop::TreeModel* model, KDevelop::TreeItem* parent, const QString& expression, const QString& display)
{
return new Variable(model, parent, expression, display);
}
KTextEditor::Range VariableController::expressionRangeUnderCursor(KTextEditor::Document* doc, const KTextEditor::Cursor& cursor)
{
QString prefix;
DUChainReadLocker lock;
if ( ! doc->isModified() ) {
if ( TopDUContext* context = DUChain::self()->chainForDocument(doc->url()) ) {
DUContext* contextAtCursor = context->findContextAt(CursorInRevision(cursor.line(), cursor.column()));
if ( contextAtCursor && contextAtCursor->type() == DUContext::Class ) {
if ( contextAtCursor->owner() && ! contextAtCursor->owner()->identifier().isEmpty() ) {
prefix = contextAtCursor->owner()->identifier().toString() + QStringLiteral(".");
}
}
}
}
else {
qCDebug(KDEV_PYTHON_DEBUGGER) << "duchain unavailable for document" << doc->url() << "or document out of date";
}
TextDocumentLazyLineFetcher linefetcher(doc);
KTextEditor::Cursor startCursor;
auto text = QString(prefix + CodeHelpers::expressionUnderCursor(linefetcher, cursor, startCursor));
return {startCursor, startCursor + KTextEditor::Cursor{0, static_cast<int>(text.length())}};
}
void VariableController::localsUpdateReady(QByteArray rawData)
{
static QRegularExpression formatExtract(
QRegularExpression::anchoredPattern(QStringLiteral("([a-zA-Z0-9_]+) \\=\\> (.*)")));
QList<QByteArray> data = rawData.split('\n');
data.removeAll({});
qCDebug(KDEV_PYTHON_DEBUGGER) << "locals update:" << data;
int i = 0;
QStringList vars;
QMap<QString, QString> values;
while ( i < data.length() ) {
QByteArray d = data.at(i);
auto match = formatExtract.match(QString::fromLatin1(d));
if ( match.hasMatch() ) {
QString key = match.captured(1);
vars << key;
values[key] = match.captured(2);
}
else qCWarning(KDEV_PYTHON_DEBUGGER) << "mismatch:" << d;
i++;
}
QList<KDevelop::Variable*> variableObjects = KDevelop::ICore::self()->debugController()->variableCollection()
->locals()->updateLocals(vars);
for ( int i = 0; i < variableObjects.length(); i++ ) {
KDevelop::Variable* v = variableObjects[i];
auto model = v->model();
auto parent = model->indexForItem(v, 0);
auto childCount = v->model()->rowCount(parent);
qCDebug(KDEV_PYTHON_DEBUGGER) << "updating:" << v->expression() << "active children:" << childCount;
for ( int j = 0; j < childCount; j++ ) {
auto index = model->index(j, 0, parent);
auto child = static_cast<KDevelop::TreeItem*>(index.internalPointer());
if ( auto childVariable = qobject_cast<Variable*>(child) ) {
qCDebug(KDEV_PYTHON_DEBUGGER) << " got child var:" << childVariable->expression();
v->fetchMoreChildren();
break;
}
}
v->setValue(values[v->expression()]);
v->setHasMoreInitial(true);
}
}
void VariableController::update() {
m_updateTimer.start();
}
void VariableController::_update()
{
qCDebug(KDEV_PYTHON_DEBUGGER) << " ************************* update requested";
DebugSession* d = static_cast<DebugSession*>(parent());
if (autoUpdate() & UpdateWatches) {
variableCollection()->watches()->reinstall();
}
if (autoUpdate() & UpdateLocals) {
// TODO find a more elegant solution for this import!
InternalPdbCommand* import = new InternalPdbCommand(nullptr, nullptr, QStringLiteral("import __kdevpython_debugger_utils\n"));
InternalPdbCommand* cmd = new InternalPdbCommand(this, "localsUpdateReady",
QStringLiteral("__kdevpython_debugger_utils.format_locals(__kdevpython_debugger_utils.__kdevpython_builtin_locals())\n"));
d->addCommand(import);
d->addCommand(cmd);
}
}
}
#include "moc_variablecontroller.cpp"
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