[ sisc-Bugs-1477206 ] Working example of using oo library

Bugs item #1477206, was opened at 2006-04-27 00:18
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Denys Rtveliashvili (rtvd)
Assigned to: Nobody/Anonymous (nobody)
Summary: Working example of using oo library

Initial Comment:
I tried to work with Scheme's classes and objects but I
can't find a way to do that properly. Yes, there is a
documentation, but it looks like either there is a
bug(s) or I am doing something wrong.

For example, the following:

(import oo)

(define-generics :animal :animal!)

Leads to this error:

   Error: undefined variable 'define-generics'.


Also, the following:

(import oo)
  
(define-class (<pet>) (animal :animal :animal!) (name))

Leads to this error:

Error: undefined variable ':animal'.

While

(import oo)
  
(define-class (<pet>) (animal) (name))

Works fine.

I do not see why :(

If somebody writes a simple working example of
declaration of a class, creating an instance and
modifying and accessing it, I think that would be very
useful.

Thank you,
Denys

P.S. The SISC version I use is 1.13.4.

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