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/*
SPDX-FileCopyrightText: 2006 Hamish Rodda <rodda@kde.org>
SPDX-FileCopyrightText: 2007-2008 David Nolden <david.nolden.kdevelop@art-master.de>
SPDX-License-Identifier: LGPL-2.0-only
*/
#include "duchainbase.h"
#include <QMutexLocker>
#include <QThreadStorage>
#include "duchainpointer.h"
#include "parsingenvironment.h"
#include <serialization/indexedstring.h>
#include "topducontext.h"
#include "duchainregister.h"
#include <util/foregroundlock.h>
#include <interfaces/icore.h>
#include <interfaces/ilanguagecontroller.h>
#include <backgroundparser/backgroundparser.h>
#include <backgroundparser/documentchangetracker.h>
namespace KDevelop {
REGISTER_DUCHAIN_ITEM(DUChainBase);
uint DUChainBaseData::classSize() const
{
return DUChainItemSystem::self().dataClassSize(*this);
}
DUChainBase::DUChainBase(const RangeInRevision& range)
: d_ptr(new DUChainBaseData)
{
d_func_dynamic()->m_range = range;
d_func_dynamic()->setClassId(this);
}
DUChainBase::DUChainBase(DUChainBaseData& dd, const RangeInRevision& range)
: d_ptr(&dd)
{
d_func_dynamic()->m_range = range;
}
DUChainBase::DUChainBase(DUChainBaseData& dd)
: d_ptr(&dd)
{
}
DUChainBase::DUChainBase(DUChainBase& rhs)
: d_ptr(new DUChainBaseData(*rhs.d_func()))
{
d_func_dynamic()->setClassId(this);
}
IndexedString DUChainBase::url() const
{
TopDUContext* top = topContext();
if (top)
return top->TopDUContext::url();
else
return IndexedString();
}
void DUChainBase::setData(DUChainBaseData* data, bool constructorCalled)
{
Q_ASSERT(data);
Q_ASSERT(d_ptr);
if (d_ptr->m_dynamic) {
Q_ASSERT(constructorCalled);
DUChainItemSystem::self().deleteDynamicData(d_ptr);
} else if (constructorCalled) {
// If the data object isn't dynamic, then it is part of a central repository, and cannot be deleted here.
// we still need to call the destructor though
KDevelop::DUChainItemSystem::self().callDestructor(static_cast<DUChainBaseData*>(d_ptr));
}
d_ptr = data;
}
DUChainBase::~DUChainBase()
{
if (m_ptr)
m_ptr->m_base = nullptr;
if (d_ptr->m_dynamic) {
DUChainItemSystem::self().deleteDynamicData(d_ptr);
d_ptr = nullptr;
}
}
TopDUContext* DUChainBase::topContext() const
{
///@todo Move the reference to the top-context right into this class, as it's common to all inheriters
return nullptr;
}
namespace {
QMutex weakPointerMutex;
}
const QExplicitlySharedDataPointer<DUChainPointerData>& DUChainBase::weakPointer() const
{
if (!m_ptr) {
QMutexLocker lock(&weakPointerMutex); // The mutex is used to make sure we don't create m_ptr twice at the same time
m_ptr = new DUChainPointerData(const_cast<DUChainBase*>(this));
m_ptr->m_base = const_cast<DUChainBase*>(this);
}
return m_ptr;
}
void DUChainBase::rebuildDynamicData(DUContext* parent, uint ownIndex)
{
Q_UNUSED(parent)
Q_UNUSED(ownIndex)
}
void DUChainBase::makeDynamic()
{
Q_ASSERT(d_ptr);
if (!d_func()->m_dynamic) {
Q_ASSERT(d_func()->classId);
DUChainBaseData* newData = DUChainItemSystem::self().cloneData(*d_func());
{
auto* const baseData = static_cast<DUChainBaseData*>(d_ptr);
const DUChainReferenceCountingEnabler rcEnabler(d_ptr, DUChainItemSystem::self().dynamicSize(*baseData));
//We don't delete the previous data, because it's embedded in the top-context when it isn't dynamic.
//However we do call the destructor, to keep semantic stuff like reference-counting within the data class working correctly.
DUChainItemSystem::self().callDestructor(baseData);
}
d_ptr = newData;
Q_ASSERT(d_ptr);
Q_ASSERT(d_func()->m_dynamic);
Q_ASSERT(d_func()->classId);
}
}
RangeInRevision DUChainBase::range() const
{
return d_func()->m_range;
}
KTextEditor::Range DUChainBase::rangeInCurrentRevision() const
{
DocumentChangeTracker* tracker = ICore::self()->languageController()->backgroundParser()->trackerForUrl(url());
if (tracker && topContext() && topContext()->parsingEnvironmentFile()) {
qint64 revision = topContext()->parsingEnvironmentFile()->modificationRevision().revision;
return tracker->transformToCurrentRevision(d_func()->m_range, revision);
}
// If the document is not open, we can simply cast the range over, as no translation can be done
return d_func()->m_range.castToSimpleRange();
}
PersistentMovingRange::Ptr DUChainBase::createRangeMoving() const
{
VERIFY_FOREGROUND_LOCKED
return PersistentMovingRange::Ptr(new PersistentMovingRange(rangeInCurrentRevision(), url()));
}
CursorInRevision DUChainBase::transformToLocalRevision(const KTextEditor::Cursor& cursor) const
{
DocumentChangeTracker* tracker = ICore::self()->languageController()->backgroundParser()->trackerForUrl(url());
if (tracker && topContext() && topContext()->parsingEnvironmentFile()) {
qint64 revision = topContext()->parsingEnvironmentFile()->modificationRevision().revision;
return tracker->transformToRevision(cursor, revision);
}
return CursorInRevision::castFromSimpleCursor(cursor);
}
RangeInRevision DUChainBase::transformToLocalRevision(const KTextEditor::Range& range) const
{
DocumentChangeTracker* tracker = ICore::self()->languageController()->backgroundParser()->trackerForUrl(url());
if (tracker && topContext() && topContext()->parsingEnvironmentFile()) {
qint64 revision = topContext()->parsingEnvironmentFile()->modificationRevision().revision;
return tracker->transformToRevision(range, revision);
}
return RangeInRevision::castFromSimpleRange(range);
}
KTextEditor::Range DUChainBase::transformFromLocalRevision(const KDevelop::RangeInRevision& range) const
{
DocumentChangeTracker* tracker = ICore::self()->languageController()->backgroundParser()->trackerForUrl(url());
if (tracker && topContext() && topContext()->parsingEnvironmentFile()) {
qint64 revision = topContext()->parsingEnvironmentFile()->modificationRevision().revision;
return tracker->transformToCurrentRevision(range, revision);
}
return range.castToSimpleRange();
}
KTextEditor::Cursor DUChainBase::transformFromLocalRevision(const KDevelop::CursorInRevision& cursor) const
{
DocumentChangeTracker* tracker = ICore::self()->languageController()->backgroundParser()->trackerForUrl(url());
if (tracker && topContext() && topContext()->parsingEnvironmentFile()) {
qint64 revision = topContext()->parsingEnvironmentFile()->modificationRevision().revision;
return tracker->transformToCurrentRevision(cursor, revision);
}
return cursor.castToSimpleCursor();
}
void DUChainBase::setRange(const RangeInRevision& range)
{
d_func_dynamic()->m_range = range;
}
QThreadStorage<bool> shouldCreateConstantDataStorage;
bool& DUChainBaseData::shouldCreateConstantData()
{
return shouldCreateConstantDataStorage.localData();
}
}
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