Exceptionclass
Base class for all exception objects. We derive all exceptions from this base class so that we can write ‘catch’ blocks that catch all exceptions by catching ‘Exception’.
The displayException() method displays a message describing the exception. Subclasses should override this method.
class Exception : object
Superclass Tree (in declaration order)
Exception
` object`
Subclass Tree
Exception
AbortImplicitSignal
ActionRemappingTooComplexError
BreakLoopSignal
CircularExecException
CompilerException
DisambigException
DisambigOrdinalOutOfRangeException
StillAmbiguousException
UnmatchedDisambigException
EndOfFileException
ExitActionSignal
ExitSignal
FileException
FileClosedException
FileCreationException
FileIOException
FileModeException
FileNotFoundException
FileOpenException
FileSafetyException
FileSyncException
NetException
NetSafetyException
SocketDisconnectException
ParserException
ParseFailureException
ReplacementCommandStringException
RetryCommandTokensException
TerminateCommandException
CancelCommandLineException
ProgramException
QuittingException
RemapActionSignal
RestartSignal
RuntimeError
StorageServerError
SettingsNotSupportedException
TokenizerError
TokErrorNoMatch
UnboundMultiMethod
UnboundInheritedMultiMethod
UnknownCharSetException
Global Objects
(none)
Summary of Properties
Summary of Methods
construct displayException getExceptionMessage showStackTrace
Properties
errmsg_
Private member: The error message passed to the constructor, if any. Note that this doesn’t necessarily contain the actual displayed exception message, since displayException() can be overridden in subclasses to display additional parameters or other text entirely. The definitive message is the one that displayException() generates. If you want the displayed message as a string, use getExceptionMessage().
Methods
construct (msg?, ...)
construct, with an optional message describing the error
displayException ( )
display the exception - should always be overridden
getExceptionMessage ( )
Get the exception message as a string. This captures the output of displayException() and returns it a string. Use this instead of accessing errmsg_, since that member is private and might not reflect the actual displayed message.
showStackTrace (stackList)
Display a stack trace, given a list of T3StackInfo objects. Note that, for efficiency, we do not by default cache a stack trace when an exception occurs; individual subclasses can obtain a stack trace if desired at construction and use the information to show a stack trace for the exception.
TADS 3 Library Manual
Generated on 5/16/2013 from TADS version 3.1.3