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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "qmlprofilerdetailsrewriter.h"
#include <projectexplorer/kit.h>
#include <projectexplorer/kitinformation.h>
#include <projectexplorer/project.h>
#include <projectexplorer/session.h>
#include <projectexplorer/target.h>
#include <projectexplorer/runconfiguration.h>
#include <qmljs/parser/qmljsast_p.h>
#include <qmljs/qmljsmodelmanagerinterface.h>
#include <qmljstools/qmljsmodelmanager.h>
#include <qtsupport/baseqtversion.h>
#include <utils/qtcassert.h>
#include <QDebug>
namespace QmlProfiler {
namespace Internal {
class PropertyVisitor: protected QmlJS::AST::Visitor
{
public:
QmlJS::AST::Node *operator()(QmlJS::AST::Node *node, int line, int column)
{
QTC_ASSERT(line >= 0, return nullptr);
QTC_ASSERT(column >= 0, return nullptr);
QTC_ASSERT(node, return nullptr);
m_line = line;
m_column = column;
m_lastValidNode = nullptr;
node->accept(this);
return m_lastValidNode;
}
protected:
using QmlJS::AST::Visitor::visit;
bool preVisit(QmlJS::AST::Node *node) override
{
if (QmlJS::AST::cast<QmlJS::AST::UiQualifiedId *>(node))
return false;
return containsLocation(node->firstSourceLocation(), node->lastSourceLocation());
}
bool visit(QmlJS::AST::UiScriptBinding *ast) override
{
m_lastValidNode = ast;
return true;
}
bool visit(QmlJS::AST::UiPublicMember *ast) override
{
m_lastValidNode = ast;
return true;
}
void throwRecursionDepthError() override
{
qWarning("Warning: Hit mximum recursion depth while visiting AST in PropertyVisitor");
}
private:
QmlJS::AST::Node *m_lastValidNode = nullptr;
quint32 m_line = 0;
quint32 m_column = 0;
bool containsLocation(QmlJS::SourceLocation start, QmlJS::SourceLocation end)
{
return (m_line > start.startLine
|| (m_line == start.startLine && m_column >= start.startColumn))
&& (m_line < end.startLine
|| (m_line == end.startLine && m_column <= end.startColumn));
}
};
QmlProfilerDetailsRewriter::QmlProfilerDetailsRewriter(QObject *parent)
: QObject(parent)
{
}
void QmlProfilerDetailsRewriter::requestDetailsForLocation(int typeId,
const QmlEventLocation &location)
{
const Utils::FilePath localFile = getLocalFile(location.filename());
if (localFile.isEmpty())
return;
if (m_pendingEvents.isEmpty())
connectQmlModel();
m_pendingEvents.insert(localFile, {location, typeId});
}
Utils::FilePath QmlProfilerDetailsRewriter::getLocalFile(const QString &remoteFile)
{
const Utils::FilePath localFile = m_projectFinder.findFile(remoteFile).constFirst();
if (!localFile.exists() || !localFile.isReadableFile())
return Utils::FilePath();
if (!QmlJS::ModelManagerInterface::guessLanguageOfFile(localFile).isQmlLikeOrJsLanguage())
return Utils::FilePath();
return localFile.canonicalPath();
}
void QmlProfilerDetailsRewriter::reloadDocuments()
{
if (!m_pendingEvents.isEmpty()) {
if (QmlJS::ModelManagerInterface *manager = QmlJS::ModelManagerInterface::instance()) {
manager->updateSourceFiles(m_pendingEvents.uniqueKeys(), false);
} else {
m_pendingEvents.clear();
disconnectQmlModel();
emit eventDetailsChanged();
}
} else {
emit eventDetailsChanged();
}
}
void QmlProfilerDetailsRewriter::rewriteDetailsForLocation(
const QString &source, QmlJS::Document::Ptr doc, int typeId,
const QmlEventLocation &location)
{
PropertyVisitor propertyVisitor;
QmlJS::AST::Node *node = propertyVisitor(doc->ast(), location.line(), location.column());
if (!node)
return;
const quint32 startPos = node->firstSourceLocation().begin();
const quint32 len = node->lastSourceLocation().end() - startPos;
emit rewriteDetailsString(typeId, source.mid(startPos, len).simplified());
}
void QmlProfilerDetailsRewriter::connectQmlModel()
{
if (auto manager = QmlJS::ModelManagerInterface::instance()) {
connect(manager, &QmlJS::ModelManagerInterface::documentUpdated,
this, &QmlProfilerDetailsRewriter::documentReady);
}
}
void QmlProfilerDetailsRewriter::disconnectQmlModel()
{
if (auto manager = QmlJS::ModelManagerInterface::instance()) {
disconnect(manager, &QmlJS::ModelManagerInterface::documentUpdated,
this, &QmlProfilerDetailsRewriter::documentReady);
}
}
void QmlProfilerDetailsRewriter::clear()
{
m_pendingEvents.clear();
disconnectQmlModel();
}
void QmlProfilerDetailsRewriter::documentReady(QmlJS::Document::Ptr doc)
{
const Utils::FilePath &fileName = doc->fileName();
auto first = m_pendingEvents.find(fileName);
// this could be triggered by an unrelated reload in Creator
if (first == m_pendingEvents.end())
return;
// if the file could not be opened this slot is still triggered
// but source will be an empty string
QString source = doc->source();
const bool sourceHasContents = !source.isEmpty();
for (auto it = first; it != m_pendingEvents.end() && it.key() == fileName;) {
if (sourceHasContents)
rewriteDetailsForLocation(source, doc, it->typeId, it->location);
it = m_pendingEvents.erase(it);
}
if (m_pendingEvents.isEmpty()) {
disconnectQmlModel();
emit eventDetailsChanged();
}
}
void QmlProfilerDetailsRewriter::populateFileFinder(const ProjectExplorer::Target *target)
{
QtSupport::QtVersion::populateQmlFileFinder(&m_projectFinder, target);
}
} // namespace Internal
} // namespace QmlProfiler
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