More Fun with Perl
After my article last week regarding Dynamic Method Generation in Perl, here's the conclusion.
See Fun Hacking Perl first unless you've already seen it. It took me a week instead of a day to post this follow up... :-)
Overall, dynamically creating methods can seem like a bit of black magic, some hand waving, smoke and mirrors or all three. But in reality it's fairly straight-forward.
Go take a look at the Class::Accessor module (source) and search for ::$accessor_name (there are 4 instances). It's fairly straight forward and really there are only two steps you have to do:
- create an anonymous subroutine (or closure) using
sub - inject it into the caller's (being
$class} namespace
Of course, there is a few more things you have to be weary of and a few more details to look out for but essentially, that's it.
So far, I now have 5 ways of generating 5 different types of methods. It's kinda cool and means I can remove a lot of template code from http://zaapt.org.nz/ (deprecated) Zaapt.
This post originated on http://chilts.org/.
Email me on andychilton -at- gmail -dot- com.