in reply to How do I report an error back to the user of my object?
Interesting thread. Thanks for launching it.
I wrestled with this recently and, while I know a lot of monks more experienced than me would recommend just die-ing on error, I decided to use a softer approach. I created a few error-handling methods for my class that can be called as follows:
$obj->set_err( 'Something went boom' ); my $msg = $obj->err_str; my $trace = $obj->err_trace; # error msg + full stack trace
The main reasons I went with this approach are:
- I didn't want to wrap nearly every method call with an eval
- I consider very few of the possible errors to be fatal-worthy
- I wanted the methods to have the ability to pass information back to the caller as a warning even if the method succeeds (e.g., over-writing data may or may not be intentional)
I realize this may be a choice that goes against accepted conventions, and over time (as my modules mature and become more battle-tested) I may change the way errors are handled. For now, though, this approach works well.
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