内容

• 公共函数
• 相关非成员
• 详细描述

QQmlError Class

QQmlError class encapsulates a QML error. 更多...

头：	#include <QQmlError>
qmake:	QT += qml
Since:	Qt 5.0

• 所有成员列表，包括继承成员

公共函数

	QQmlError ()
	QQmlError (const QQmlError & other )
int	column () const
QString	description () const
bool	isValid () const
int	line () const
QtMsgType	messageType () const
QObject *	object () const
void	setColumn (int column )
void	setDescription (const QString & description )
void	setLine (int line )
void	setMessageType (QtMsgType messageType )
void	setObject (QObject * object )
void	setUrl (const QUrl & url )
QString	toString () const
QUrl	url () const
QQmlError &	operator= (const QQmlError & other )

相关非成员

QDebug

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

详细描述

QQmlError class encapsulates a QML error.

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:///home/user/test.qml:7:8: Invalid property assignment: double expected
					

可以使用 qDebug (), qInfo ()，或 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:///home/user/test.qml:7:8: Invalid property assignment: double expected
        y: "hello"
           ^
					

注意， Qt Quick 1 version is named QDeclarativeError

另请参阅 QQuickView::errors () 和 QQmlComponent::errors ().

成员函数文档编制

QQmlError:: QQmlError ()

Creates an empty error object.

QQmlError:: QQmlError (const QQmlError & other )

Creates a copy of other .

int QQmlError:: column () const

Returns the error column number.

另请参阅 setColumn ().

QString QQmlError:: description () const

Returns the error description.

另请参阅 setDescription ().

bool QQmlError:: isValid () const

Returns true if this error is valid, otherwise false.

int QQmlError:: line () const

Returns the error line number.

另请参阅 setLine ().

QtMsgType QQmlError:: messageType () const

Returns the message type.

该函数在 Qt 5.9 引入。

另请参阅 setMessageType ().

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.

另请参阅 setObject ().

void QQmlError:: setColumn ( int column )

Sets the error column number.

另请参阅 column ().

void QQmlError:: setDescription (const QString & description )

Sets the error description .

另请参阅 description ().

void QQmlError:: setLine ( int line )

Sets the error line number.

另请参阅 line ().

void QQmlError:: setMessageType ( QtMsgType messageType )

设置 messageType for this message. The message type determines which QDebug handlers are responsible for recieving the message.

该函数在 Qt 5.9 引入。

另请参阅 messageType ().

void QQmlError:: setObject ( QObject * object )

Sets the nearest object where this error occurred.

另请参阅 object ().

void QQmlError:: setUrl (const QUrl & url )

设置 url for the file that caused this error.

另请参阅 url ().

QString QQmlError:: toString () const

Returns the error as a human readable string.

QUrl QQmlError:: url () const

Returns the url for the file that caused this error.

另请参阅 setUrl ().

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

赋值 other to this error object.

相关非成员

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

Outputs a human readable version of error to debug .