#include <qqmlcodemodel_p.h>

Inheritance diagram for QmlLsp::QQmlCodeModel:

Collaboration diagram for QmlLsp::QQmlCodeModel:

Public Types
enum class	UrlLookup { Caching , ForceLookup }

enum class	State { Running , Stopping }

Signals
void	updatedSnapshot (const QByteArray &url)

Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.

void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Public Member Functions
	QQmlCodeModel (QObject parent=nullptr, QQmlToolingSettings settings=nullptr)

	~QQmlCodeModel ()

QQmlJS::Dom::DomItem	currentEnv ()

QQmlJS::Dom::DomItem	validEnv ()

OpenDocumentSnapshot	snapshotByUrl (const QByteArray &url)

OpenDocument	openDocumentByUrl (const QByteArray &url)

void	openNeedUpdate ()

void	indexNeedsUpdate ()

void	addDirectoriesToIndex (const QStringList &paths, QLanguageServer *server)

void	addOpenToUpdate (const QByteArray &)

void	removeDirectory (const QString &path)

QString	url2Path (const QByteArray &url, UrlLookup options=UrlLookup::Caching)

void	newOpenFile (const QByteArray &url, int version, const QString &docText)

void	newDocForOpenFile (const QByteArray &url, int version, const QString &docText)

void	closeOpenFile (const QByteArray &url)

void	setRootUrls (const QList< QByteArray > &urls)

QList< QByteArray >	rootUrls () const

void	addRootUrls (const QList< QByteArray > &urls)

QStringList	buildPathsForRootUrl (const QByteArray &url)

QStringList	buildPathsForFileUrl (const QByteArray &url)

void	setBuildPathsForRootUrl (QByteArray url, const QStringList &paths)

void	removeRootUrls (const QList< QByteArray > &urls)

QQmlToolingSettings *	settings ()

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

virtual	~QObject ()
	Destroys the object, deleting all its child objects.

virtual bool	event (QEvent *event)
	This virtual function receives events to an object and should return true if the event e was recognized and processed.

virtual bool	eventFilter (QObject watched, QEvent event)
	Filters events if this object has been installed as an event filter for the watched object.

QString	objectName () const

Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.

void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const
	Returns `true` if the object is a widget; otherwise returns `false`.

bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.

bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.

bool	signalsBlocked () const noexcept
	Returns `true` if signals are blocked; otherwise returns `false`.

bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).

QThread *	thread () const
	Returns the thread in which the object lives.

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children.

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.

int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)
	Kills the timer with timer identifier, id.

template<typename T >
T	findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.

template<typename T >
QList< T >	findChildren (const QString &aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

const QObjectList &	children () const
	Returns a list of child objects.

void	setParent (QObject *parent)
	Makes the object a child of parent.

void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.

void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const
	Dumps a tree of children to the debug output.

void	dumpObjectInfo () const
	Dumps information about signal connections, etc.

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.

bool	setProperty (const char *name, QVariant &&value)

QVariant	property (const char *name) const
	Returns the value of the object's name property.

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const
	Returns a pointer to the parent object.

bool	inherits (const char *classname) const
	Returns `true` if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns `false`.

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.

int	senderSignalIndex () const

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.

virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.

virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Properties inherited from QObject
QString	objectName
	the name of this object

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

The code model offers a view of the current state of the current files, and traks open files. All methods are threadsafe, and generally return immutable or threadsafe objects that can be worked on from any thread (unless otherwise noted). The idea is the let all other operations be as lock free as possible, concentrating all tricky synchronization here.

\list

currentEnv() offers a view that contains the latest version of all the loaded files
validEnv() is just like current env but stores only the valid (meaning correctly parsed, not necessarily without errors) version of a file, it is normally a better choice to load the dependencies/symbol information from \endlist

\list

snapshotByUrl() returns an OpenDocumentSnapshot of an open document. From it you can get the document, its latest valid version, scope, all connected to a specific version of the document and immutable. The signal updatedSnapshot() is called every time a snapshot changes (also for every partial change: document change, validDocument change, scope change).
openDocumentByUrl() is a lower level and more intrusive access to OpenDocument objects. These contains the current snapshot, and shared pointer to a Utils::TextDocument. This is always the current version of the document, and has line by line support. Working on it is more delicate and intrusive, because you have to explicitly acquire its mutex() before any read or write/modification to it. It has a version nuber which is supposed to always change and increase. It is mainly used for highlighting/indenting, and is immediately updated when the user edits a document. Its use should be avoided if possible, preferring the snapshots. \endlist

Most operations are not parallel and usually take place in the main thread (but are still thread safe). There are two main task that are executed in parallel: Indexing, and OpenDocumentUpdate. Indexing is meant to keep the global view up to date. OpenDocumentUpdate keeps the snapshots of the open documents up to date.

There is always a tension between being responsive, using all threads available, and avoid to hog too many resources. One can choose different parallelization strategies, we went with a flexiable approach. We have (private) functions that execute part of the work: indexSome() and openUpdateSome(). These do all locking needed, get some work, do it without locks, and at the end update the state of the code model. If there is more work, then they return true. Thus while (xxxSome()); works until there is no work left.

addDirectoriesToIndex(), the internal addDirectory() and addOpenToUpdate() add more work to do.

indexNeedsUpdate() and openNeedUpdate(), check if there is work to do, and if yes ensure that a worker thread (or more) that work on it exist.

Definition at line 72 of file qqmlcodemodel_p.h.

Member Enumeration Documentation

◆ State

enum class QmlLsp::QQmlCodeModel::State

strong

Enumerator
Running
Stopping

Definition at line 77 of file qqmlcodemodel_p.h.

◆ UrlLookup

enum class QmlLsp::QQmlCodeModel::UrlLookup

strong

Enumerator
Caching
ForceLookup

Definition at line 76 of file qqmlcodemodel_p.h.

Constructor & Destructor Documentation

◆ QQmlCodeModel()

QmlLsp::QQmlCodeModel::QQmlCodeModel	(	QObject *	parent = `nullptr`,
		QQmlToolingSettings *	settings = `nullptr`
	)

explicit

Definition at line 80 of file qqmlcodemodel.cpp.

◆ ~QQmlCodeModel()

QmlLsp::QQmlCodeModel::~QQmlCodeModel ( )

Definition at line 92 of file qqmlcodemodel.cpp.

References QSet< T >::clear(), and QThread::yieldCurrentThread().

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Member Function Documentation

◆ addDirectoriesToIndex()

void QmlLsp::QQmlCodeModel::addDirectoriesToIndex	(	const QStringList &	paths,
		QLanguageServer *	server
	)

Definition at line 205 of file qqmlcodemodel.cpp.

References indexNeedsUpdate(), Q_UNUSED, and server.

Referenced by WorkspaceHandlers::clientInitialized(), and WorkspaceHandlers::registerHandlers().

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◆ addOpenToUpdate()

void QmlLsp::QQmlCodeModel::addOpenToUpdate ( const QByteArray & url )

Definition at line 676 of file qqmlcodemodel.cpp.

References QSet< T >::insert(), and url.

Referenced by TextSynchronization::didDidChangeTextDocument(), and newOpenFile().

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◆ addRootUrls()

void QmlLsp::QQmlCodeModel::addRootUrls ( const QList< QByteArray > & urls )

Definition at line 496 of file qqmlcodemodel.cpp.

References QList< T >::append(), QListSpecialMethodsBase< T >::contains(), and url.

Referenced by WorkspaceHandlers::registerHandlers().

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◆ buildPathsForFileUrl()

QStringList QmlLsp::QQmlCodeModel::buildPathsForFileUrl ( const QByteArray & url )

Definition at line 529 of file qqmlcodemodel.cpp.

References QByteArray::append(), QByteArray::at(), QList< T >::begin(), buildPathsForRootUrl(), d, QDir::Dirs, el2, QList< T >::end(), QFile::exists(), QByteArray::isEmpty(), QList< T >::isEmpty(), QmlLsp::isNotSeparator(), QQmlToolingSettings::isSet(), QDateTime::isValid(), QHash< Key, T >::keys(), QList< T >::last(), QDir::listSeparator(), qEnvironmentVariable(), QStringLiteral, QList< T >::removeLast(), QQmlToolingSettings::search(), QByteArray::size(), Qt::SkipEmptyParts, QString::split(), QByteArray::startsWith(), QVariant::toString(), url, url2Path(), and QQmlToolingSettings::value().

Referenced by QmlLsp::QmlLintSuggestions::diagnose(), and newDocForOpenFile().

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◆ buildPathsForRootUrl()

QStringList QmlLsp::QQmlCodeModel::buildPathsForRootUrl ( const QByteArray & url )

Definition at line 518 of file qqmlcodemodel.cpp.

References url, and QHash< Key, T >::value().

Referenced by buildPathsForFileUrl().

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◆ closeOpenFile()

void QmlLsp::QQmlCodeModel::closeOpenFile ( const QByteArray & url )

Definition at line 484 of file qqmlcodemodel.cpp.

References url.

Referenced by TextSynchronization::didCloseTextDocument().

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◆ currentEnv()

QQmlJS::Dom::DomItem QmlLsp::QQmlCodeModel::currentEnv ( )

◆ indexNeedsUpdate()

void QmlLsp::QQmlCodeModel::indexNeedsUpdate ( )

Definition at line 304 of file qqmlcodemodel.cpp.

References QThreadPool::globalInstance(), and QThreadPool::start().

Referenced by addDirectoriesToIndex().

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◆ newDocForOpenFile()

void QmlLsp::QQmlCodeModel::newDocForOpenFile	(	const QByteArray &	url,
		int	version,
		const QString &	docText
	)

Definition at line 413 of file qqmlcodemodel.cpp.

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◆ newOpenFile()

void QmlLsp::QQmlCodeModel::newOpenFile	(	const QByteArray &	url,
		int	version,
		const QString &	docText
	)

Definition at line 283 of file qqmlcodemodel.cpp.

References addOpenToUpdate(), openNeedUpdate(), and url.

Referenced by TextSynchronization::didOpenTextDocument().

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◆ openDocumentByUrl()

OpenDocument QmlLsp::QQmlCodeModel::openDocumentByUrl ( const QByteArray & url )

Definition at line 298 of file qqmlcodemodel.cpp.

References url.

Referenced by TextSynchronization::didDidChangeTextDocument(), QQmlDocumentFormatting::process(), and snapshotByUrl().

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◆ openNeedUpdate()

void QmlLsp::QQmlCodeModel::openNeedUpdate ( )

Definition at line 350 of file qqmlcodemodel.cpp.

References QThreadPool::globalInstance(), QSet< T >::isEmpty(), qCDebug, and QThreadPool::start().

Referenced by TextSynchronization::didDidChangeTextDocument(), and newOpenFile().

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◆ removeDirectory()

void QmlLsp::QQmlCodeModel::removeDirectory ( const QString & path )

Definition at line 237 of file qqmlcodemodel.cpp.

References it, and QQmlJS::Dom::DomItem::ownerAs().

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◆ removeRootUrls()

void QmlLsp::QQmlCodeModel::removeRootUrls ( const QList< QByteArray > & urls )

Definition at line 505 of file qqmlcodemodel.cpp.

References QList< T >::removeOne(), and url.

Referenced by WorkspaceHandlers::registerHandlers().

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◆ rootUrls()

QList< QByteArray > QmlLsp::QQmlCodeModel::rootUrls ( ) const

Definition at line 512 of file qqmlcodemodel.cpp.

◆ setBuildPathsForRootUrl()

void QmlLsp::QQmlCodeModel::setBuildPathsForRootUrl	(	QByteArray	url,
		const QStringList &	paths
	)

Definition at line 622 of file qqmlcodemodel.cpp.

References QHash< Key, T >::insert(), QUrl::isEmpty(), QmlLsp::isNotSeparator(), QHash< Key, T >::remove(), and url.

Referenced by QmlLsp::QQmlLanguageServer::registerHandlers().

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◆ setRootUrls()

void QmlLsp::QQmlCodeModel::setRootUrls ( const QList< QByteArray > & urls )

Definition at line 490 of file qqmlcodemodel.cpp.

◆ settings()

QQmlToolingSettings * QmlLsp::QQmlCodeModel::settings ( )

◆ snapshotByUrl()

OpenDocumentSnapshot QmlLsp::QQmlCodeModel::snapshotByUrl ( const QByteArray & url )

Definition at line 108 of file qqmlcodemodel.cpp.

References openDocumentByUrl(), QmlLsp::OpenDocument::snapshot, and url.

Referenced by QmlLsp::QmlLintSuggestions::diagnose(), newDocForOpenFile(), and QmlCompletionSupport::process().

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◆ updatedSnapshot

void QmlLsp::QQmlCodeModel::updatedSnapshot ( const QByteArray & url )

signal

Referenced by QmlLsp::QmlLintSuggestions::QmlLintSuggestions(), QQmlBaseModule< RequestType >::QQmlBaseModule(), and newDocForOpenFile().

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◆ url2Path()

QString QmlLsp::QQmlCodeModel::url2Path	(	const QByteArray &	url,
		UrlLookup	options = `UrlLookup::Caching`
	)

Definition at line 259 of file qqmlcodemodel.cpp.

References Caching, QString::fromUtf8(), QHash< Key, T >::insert(), QString::isEmpty(), QHash< Key, T >::remove(), QUrl::toLocalFile(), url, and QHash< Key, T >::value().

Referenced by buildPathsForFileUrl(), WorkspaceHandlers::clientInitialized(), TextSynchronization::didDidChangeTextDocument(), TextSynchronization::didOpenTextDocument(), newDocForOpenFile(), and WorkspaceHandlers::registerHandlers().

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◆ validEnv()

QQmlJS::Dom::DomItem QmlLsp::QQmlCodeModel::validEnv ( )

The documentation for this class was generated from the following files:

qtdeclarative/src/qmlls/qqmlcodemodel_p.h
qtdeclarative/src/qmlls/qqmlcodemodel.cpp

Public Types

Signals

Public Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ State

◆ UrlLookup

Constructor & Destructor Documentation

◆ QQmlCodeModel()

◆ ~QQmlCodeModel()

Member Function Documentation

◆ addDirectoriesToIndex()

◆ addOpenToUpdate()

◆ addRootUrls()

◆ buildPathsForFileUrl()

◆ buildPathsForRootUrl()

◆ closeOpenFile()

◆ currentEnv()

◆ indexNeedsUpdate()

◆ newDocForOpenFile()

◆ newOpenFile()

◆ openDocumentByUrl()

◆ openNeedUpdate()

◆ removeDirectory()

◆ removeRootUrls()

◆ rootUrls()

◆ setBuildPathsForRootUrl()

◆ setRootUrls()

◆ settings()

◆ snapshotByUrl()

◆ updatedSnapshot

◆ url2Path()

◆ validEnv()