The QQmlError class encapsulates a QML error. More...

#include <qqmlerror.h>

Collaboration diagram for QQmlError:

Public Member Functions
	QQmlError ()
	Creates an empty error object.

	QQmlError (const QQmlError &)
	Creates a copy of other.

	QQmlError (QQmlError &&other) noexcept

QQmlError &	operator= (const QQmlError &)
	Assigns other to this error object.

	~QQmlError ()

void	swap (QQmlError &other)

bool	isValid () const
	Returns true if this error is valid, otherwise false.

QUrl	url () const
	Returns the url for the file that caused this error.

void	setUrl (const QUrl &)
	Sets the url for the file that caused this error.

QString	description () const
	Returns the error description.

void	setDescription (const QString &)
	Sets the error description.

int	line () const
	Returns the error line number.

void	setLine (int)
	Sets the error line number.

int	column () const
	Returns the error column number.

void	setColumn (int)
	Sets the error column number.

QObject *	object () const
	Returns the nearest object where this error occurred.

void	setObject (QObject *)
	Sets the nearest object where this error occurred.

QtMsgType	messageType () const

void	setMessageType (QtMsgType messageType)

QString	toString () const
	Returns the error as a human readable string.

Friends
bool Q_QML_EXPORT	operator== (const QQmlError &a, const QQmlError &b)

Related Symbols
(Note that these are not member symbols.)
QDebug	operator<< (QDebug debug, const QQmlError &error)
	Outputs a human readable version of error to debug.

Detailed Description

The QQmlError class encapsulates a QML error.

Since: 5.0 \inmodule QtQml

QQmlError includes a textual description of the error, as well as location information (the file, line, and column). The toString() method creates a single-line, human-readable string containing all of this information, for example:

file:

file

QFile file

[0]

Definition src_corelib_io_qfile.cpp:5

You can use qDebug(), qInfo(), or qWarning() to output errors to the console. This method will attempt to open the file indicated by the error and include additional contextual information.

file:
        y: "hello"
           ^

See also: QQuickView::errors(), QQmlComponent::errors()

Definition at line 17 of file qqmlerror.h.

Constructor & Destructor Documentation

◆ QQmlError() [1/3]

QQmlError::QQmlError ( )

Creates an empty error object.

Definition at line 63 of file qqmlerror.cpp.

◆ QQmlError() [2/3]

QQmlError::QQmlError ( const QQmlError & other )

Creates a copy of other.

Definition at line 71 of file qqmlerror.cpp.

References other().

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◆ QQmlError() [3/3]

QQmlError::QQmlError ( QQmlError && other )

inlinenoexcept

Definition at line 22 of file qqmlerror.h.

◆ ~QQmlError()

QQmlError::~QQmlError ( )

Definition at line 101 of file qqmlerror.cpp.

Member Function Documentation

◆ column()

int QQmlError::column ( ) const

Returns the error column number.

Definition at line 177 of file qqmlerror.cpp.

References QQmlErrorPrivate::column.

Referenced by setColumn(), and toString().

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◆ description()

QString QQmlError::description ( ) const

Returns the error description.

Definition at line 137 of file qqmlerror.cpp.

References QQmlErrorPrivate::message.

Referenced by QQmlPluginImporter::importPlugins(), setDescription(), and toString().

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◆ isValid()

bool QQmlError::isValid ( ) const

Returns true if this error is valid, otherwise false.

Definition at line 109 of file qqmlerror.cpp.

Referenced by QQmlPropertyCacheCreator< ObjectContainer >::buildMetaObjectsIncrementally(), QQmlTypeCompiler::compile(), and QQmlDelayedError::isValid().

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◆ line()

int QQmlError::line ( ) const

Returns the error line number.

Definition at line 157 of file qqmlerror.cpp.

References QQmlErrorPrivate::line.

Referenced by setLine(), and toString().

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◆ messageType()

QtMsgType QQmlError::messageType ( ) const

Since: 5.9

Returns the message type.

Definition at line 222 of file qqmlerror.cpp.

References QtWarningMsg, and QQmlErrorPrivate::type.

Referenced by setMessageType().

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◆ object()

QObject * QQmlError::object ( ) const

Returns the nearest object where this error occurred.

Exceptions in bound property expressions set this to the object to which the property belongs. It will be 0 for all other exceptions.

Definition at line 200 of file qqmlerror.cpp.

References QQmlErrorPrivate::object.

Referenced by setObject().

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◆ operator=()

QQmlError & QQmlError::operator= ( const QQmlError & other )

Assigns other to this error object.

Definition at line 80 of file qqmlerror.cpp.

References QQmlErrorPrivate::column, QQmlErrorPrivate::line, QQmlErrorPrivate::message, QQmlErrorPrivate::object, other(), QQmlErrorPrivate::type, and QQmlErrorPrivate::url.

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◆ setColumn()

void QQmlError::setColumn ( int column )

Sets the error column number.

Definition at line 187 of file qqmlerror.cpp.

References QQmlErrorPrivate::column, and column().

Referenced by QQmlPropertyBindingJS::expressionChanged(), and QQmlDelayedError::setErrorLocation().

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◆ setDescription()

void QQmlError::setDescription ( const QString & description )

Sets the error description.

Definition at line 147 of file qqmlerror.cpp.

References description(), and QQmlErrorPrivate::message.

Referenced by QQmlPropertyBindingJS::expressionChanged(), QV4::generateWarning(), QQmlImportInstance::resolveType(), ListModel::set(), QQmlDelayedError::setErrorDescription(), and QQmlPropertyCacheCreator< ObjectContainer >::verifyNoICCycle().

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◆ setLine()

void QQmlError::setLine ( int line )

Sets the error line number.

Definition at line 167 of file qqmlerror.cpp.

References QQmlErrorPrivate::line, and line().

Referenced by QQmlPropertyBindingJS::expressionChanged(), QV4::generateWarning(), and QQmlDelayedError::setErrorLocation().

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◆ setMessageType()

void QQmlError::setMessageType ( QtMsgType messageType )

Since: 5.9

Sets the messageType for this message. The message type determines which QDebug handlers are responsible for receiving the message.

Definition at line 235 of file qqmlerror.cpp.

References messageType(), and QQmlErrorPrivate::type.

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◆ setObject()

void QQmlError::setObject ( QObject * object )

Sets the nearest object where this error occurred.

Definition at line 210 of file qqmlerror.cpp.

References QQmlErrorPrivate::object, and object().

Referenced by QQmlPropertyBindingJS::expressionChanged(), and QQmlDelayedError::setErrorObject().

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◆ setUrl()

void QQmlError::setUrl ( const QUrl & url )

Sets the url for the file that caused this error.

Definition at line 127 of file qqmlerror.cpp.

References QQmlErrorPrivate::url, and url().

Referenced by QQmlPropertyBindingJS::expressionChanged(), QV4::generateWarning(), QQmlDataBlob::setError(), and QQmlDelayedError::setErrorLocation().

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◆ swap()

void QQmlError::swap ( QQmlError & other )

inline

Definition at line 30 of file qqmlerror.h.

References d, other(), and qt_ptr_swap().

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◆ toString()

QString QQmlError::toString ( ) const

Returns the error as a human readable string.

Definition at line 245 of file qqmlerror.cpp.

References column(), description(), QUrl::isEmpty(), QString::isEmpty(), QUrl::isLocalFile(), line(), QString::number(), QUrl::path(), QUrl::toString(), and url().

Referenced by QQmlDataBlob::setError().

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◆ url()

QUrl QQmlError::url ( ) const

Returns the url for the file that caused this error.

Definition at line 117 of file qqmlerror.cpp.

References QQmlErrorPrivate::url.

Referenced by setUrl(), and toString().

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Friends And Related Symbol Documentation

◆ operator<<()

QDebug operator<<	(	QDebug	debug,
		const QQmlError &	error
	)

Definition at line 282 of file qqmlerror.cpp.

References QByteArray::append(), QString::at(), ch, QByteArray::constData(), debug, error, file, i, line, qMax(), qMin(), qPrintable, QIODeviceBase::ReadOnly, QByteArray::reserve(), QUrl::scheme(), QString::size(), QString::split(), QString::toLocal8Bit(), url, and QQmlFile::urlToLocalFileOrQrc().

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◆ operator==

bool Q_QML_EXPORT operator==	(	const QQmlError &	a,
		const QQmlError &	b
	)

friend

Definition at line 270 of file qqmlerror.cpp.

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

qtdeclarative/src/qml/qml/qqmlerror.h
qtdeclarative/src/qml/qml/qqmlerror.cpp

Public Member Functions

Friends

Related Symbols

Detailed Description

Constructor & Destructor Documentation

◆ QQmlError() [1/3]

◆ QQmlError() [2/3]

◆ QQmlError() [3/3]

◆ ~QQmlError()

Member Function Documentation

◆ column()

◆ description()

◆ isValid()

◆ line()

◆ messageType()

◆ object()

◆ operator=()

◆ setColumn()

◆ setDescription()

◆ setLine()

◆ setMessageType()

◆ setObject()

◆ setUrl()

◆ swap()

◆ toString()

◆ url()

Friends And Related Symbol Documentation

◆ operator<<()

◆ operator==