can I get a callback when I call a function

tdrgabi has asked for the wisdom of the Perl Monks concerning the following question:

I would like to build some custom debugger, by adding some debugging info on each function call (like name and some params). Write that to a file & write some gui to walk over that file and show the info in a nice way. I'm curious if I can overwrite what happens on function call. Maybe there is some general callback I could use (like overwriting SIG for die & co).

Comment on can I get a callback when I call a function

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Re: can I get a callback when I call a function by moritz (Cardinal) on Aug 30, 2010 at 15:18 UTC
The Perl debugger has an API, which you could use for your purposes. See DB for the documentation. If there's a reason you can't use that, another common technique is to write your own runloop - but that's probably much more effort. Perl 6 - links to (nearly) everything that is Perl 6.	[reply]
Re: can I get a callback when I call a function by pemungkah (Priest) on Aug 31, 2010 at 08:13 UTC
Take a look a Devel::ebug for an example of how a good debugger should look (as opposed to `perl5db.pl` which is ... arcane).	[reply]