uncaught exceptions

[Florian Weber]

hi!

is there a way to catch uncaught exceptions globally for a
ruby app? i would like to have some functionality executed (sending
a report email, etc) whenever a exception can not be caught..

thanks a lot!

ciao!
florian

 

[Paul Brannan]

is there a way to catch uncaught exceptions globally for a
ruby app? i would like to have some functionality executed (sending
a report email, etc) whenever a exception can not be caught..

The simplest way is to catch the exception at the topmost level of your
application.

If for some reason you cannot do that, you can use at_exit or END; the
uncaught exception will be in $! (worked for me in 1.6.8, 1.8.1 and
latest CVS -- didn't work in 1.8.0, though). However, unless you are
using latest CVS, the exception will be printed before the block is
called, so there's no way I know of using this mechanism to inhibit
printing the exception to stderr.

Paul