MOO-cows Mailing List Archive
Re: [MC] Multiple Inhertiance
Date: Wed, 10 Apr 1996 22:06:48 PDT
From: Kipp the Kidd <email@example.com>
Content-Type: text/plain; charset="us-ascii"
While getting mad at everyone for obsession about this MI thing, I figured
I'd throw my $0.02 in.
Yeah, I have even made a few MI generics here and there... it was a hot
subject, so of course, I attempted it, as with the many versions of in-db
parsing. The main problem with my generics was that I couldn't think of
anything to test them with... I was unable to find any reason to merge two
parents. The only reason a merge would be necessary is because of bad
1) Whatever basic object functions you write, stick them on a $util. That
way, everyone can use it without wishing for MI.
2) If you want 2 sets of commands from 2 objects to be inherited, write your
own in-db parsing. The simple ones that will do something like this are a
piece of cake.
3) Don't put such rough perm checks on verbs. So what if the server didn't
call $server_started()... just make sure there is no harmful code in there,
and if so, make it require that a wiz or $nothing calls the verb. (I know,
I know, bad example... How about $do_command() for example... if your moo
uses 100% in-db parsing, it is a nice way to force a command, even if
someone is in a read().)
4) Use !d verbs. If it isn't that important, use an E_PROPNF check to see
if it's the right parent, not :isa(). This way, objects that don't have the
recommended parent can still be used. For example, $food with a .drink
property, like the "generic edible cup," can be filled at the $faucet...
Besides, I hear that !d verbs run (a little) faster.
5) Make as many verbs +x as possible, and put the necessary perm checks in them.
...and oh yeah... I vote NO for MI as well.
-----BEGIN GEEK CODE BLOCK-----
GCS/CC d- s+:- a16 C++ UL++++ P+ L++ E-? W+ !N--@ !o-- K->K++++++
w++(--) O- M-- V--? PS++(+) PE(--) Y+ PGP-? t+ 5(+) X++ R+++(*)
!tv b+ DI++++ D++++ G e* h!()(*) r+ !y+
------END GEEK CODE BLOCK------
-----BEGIN NOT SO GEEKY BLOCK-----
Breakthrough MOO project: paradigm.microwave.com 5000
MOO2000: moo.microwave.com 2000
MundoHispano: europa.syr.edu 8888
------END NOT SO GEEKY BLOCK------
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