QQmlError Class
The QQmlError class encapsulates a QML error. 更多...
| 头文件: | #include <QQmlError> |
| qmake: | QT += qml |
| 开始支持版本: | Qt 5.0 |
公有函数
| 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
The 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
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:///home/user/test.qml:7:8: Invalid property assignment: double expected y: "hello" ^
Note that the Qt Quick 1 version is named QDeclarativeError
参见 QQuickView::errors() and QQmlComponent::errors().
成员函数
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.
参见 setColumn().
QString QQmlError::description() const
Returns the error description.
参见 setDescription().
bool QQmlError::isValid() const
Returns true if this error is valid, otherwise false.
int QQmlError::line() const
Returns the error line number.
参见 setLine().
QtMsgType QQmlError::messageType() const
Returns the message type.
This function was introduced in Qt 5.9.
参见 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.
参见 setObject().
void QQmlError::setColumn(int column)
Sets the error column number.
参见 column().
void QQmlError::setDescription(const QString &description)
Sets the error description.
参见 description().
void QQmlError::setLine(int line)
Sets the error line number.
参见 line().
void QQmlError::setMessageType(QtMsgType messageType)
Sets the messageType for this message. The message type determines which QDebug handlers are responsible for recieving the message.
This function was introduced in Qt 5.9.
参见 messageType().
void QQmlError::setObject(QObject *object)
Sets the nearest object where this error occurred.
参见 object().
void QQmlError::setUrl(const QUrl &url)
Sets the url for the file that caused this error.
参见 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.
参见 setUrl().
QQmlError &QQmlError::operator=(const QQmlError &other)
Assigns other to this error object.