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 Forum index » DIY Hardware and Software » ChucK programming language
functional programming/message passing in chuck
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flies



Joined: May 20, 2008
Posts: 33
Location: NJ
PostPosted: Fri Mar 23, 2018 2:15 pm    Post subject: functional programming/message passing in chuck Reply with quote  Mark this post and the followings unread
I seem to recall seeing a library somebody built that introduced functional programming styles into ChucK. I recall a bunch of classes like TwoArgumentFunction.

Basically, I'm getting back into chuck, and I'd like to be able to do something like this:
Code:

fun void modulate (UGen carrier, string param, UGen modulator, dur invModRate) {
    while (true) {
   modulator.last() => carrier.`param`;
   modRate => now;
    }
}


This way, I wouldn't have to define a new function for every parameter I want to modulate.

Does anyone remember the library I'm talking about or do you know another way to do the kind of message passing I'm after?

(If I ran the zoo, the language would build something like this in. Modulation of parameters by UGens is a common task.)
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flies



Joined: May 20, 2008
Posts: 33
Location: NJ
PostPosted: Fri Mar 23, 2018 2:16 pm    Post subject: Reply with quote  Mark this post and the followings unread
found the library I was looking for by googling "chuck functor"

https://github.com/heuermh/lick
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flies



Joined: May 20, 2008
Posts: 33
Location: NJ
PostPosted: Fri Mar 23, 2018 3:09 pm    Post subject: Reply with quote  Mark this post and the followings unread
LiCK includes a Module.ck. Obviously, I'm super new to LiCK, but, as best as I can tell, this class only helps if you subclass it for every parameter you want to modulate. This helps insofar as you can now chuck directly into the parameter you want to modulate (if you don't mind the added abstraction) - and you still have write a new subclass for every parameter...
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heuermh



Joined: Dec 15, 2006
Posts: 19
Location: minneapolis
PostPosted: Fri Aug 03, 2018 8:27 pm    Post subject: Reply with quote  Mark this post and the followings unread
Hello flies, sorry for the delay in responding!

I wrote this issue up as a feature request
https://github.com/ccrma/chuck/issues/110

Module.ck and related (Module2.ck, Module3.ck, etc.) let you ChucK up to n parameters via subclassing. Yeah it sucks but it is the best I could come up with short of language changes as described in the issue above.

Please let me know how you get on with ChucK and LiCK!
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