Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

Re^4: Open to debate on mixins and traits.

by lachoy (Parson)
on Jun 02, 2004 at 23:02 UTC ( #359810=note: print w/ replies, xml ) Need Help??


in reply to Re^3: Open to debate on mixins and traits.
in thread Open to debate on mixins and traits.

I agree that most problems with interfaces derive from the multiple inheritance workarounds rather than the interfaces themselves. But from a non-purist perspective they're generally quite nice to work with, particularly when you're designing a large system. And using copy-and-paste instead of MI is IME never an actual problem because you can either define it in a common base class or move it to another class and use composition.

I also agree that for most of the standard library interfaces are not used enough. There are exceptions (collections, io) but they prove the rule.

As a workaround (to a workaround I guess) there's a good deal of activity around different AOP solutions to implement mixins, even applying them to compiled classes. The only problem with this is the typical problem with AOP -- you don't know by looking at the implementation what it can do or how it can be used, you've got to have knowledge from somewhere else (configuration files or other classes). Or you have to rely on an IDE to do it for you, and then you're tied to a particular tool, which may be even worse.

Chris
M-x auto-bs-mode


Comment on Re^4: Open to debate on mixins and traits.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://359810]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (6)
As of 2014-12-28 20:41 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    Is guessing a good strategy for surviving in the IT business?





    Results (182 votes), past polls