Re: [Jscheme-user] defining new classes

[Ken A. <kan...@bb...>]

I was aware of Chiba's work, but hadn't played with it.
This is a good example,
thanks!


k
At 10:00 PM 1/6/2003, david may wrote:
>I found this today, and it seems usefull.
>are there any gotchas to this method oc creating 
>new class in jscheme?
>
>Sometimes you want to make a  subclass just to 
>override the paint method. 
>
>the jar file is here..
>http://www.csg.is.titech.ac.jp/~chiba/javassist/
>
>------------ a simple test -----------
>(import "javassist.*")
>(define  pool  (javassist.ClassPool.getDefault))
>(define cc (.makeClass  pool "Silly"))
>(define m  (CtNewMethod.make 
>       "public int silly(int dx) { return 2+dx; }" cc))
>(.addMethod cc m)
>
>(define cloader (Loader. pool))
>(define anewclass  (.loadClass  cloader "Silly"))
>(define ss1 (.newInstance anewclass))
>
>(.silly ss 1)
>
>
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