Re: [Chicken-hackers] coops, instance-of?

[Kon Lovett]

> On Jun 13, 2016, at 5:59 AM, John J Foerch <address@hidden> wrote:
> 
> Hello,
> 
> I was pruning dependencies from a program of mine recently, and noticed
> that I was using coops-utils only for 'instance-of?'.  The thought
> occurred to me that as 'instance-of?' is such a common and useful
> operation, perhaps it belongs in coops proper.  I wanted to at least put
> the idea out there and see what people thought.  It would be a bit
> self-serving for me, as I could drop several dependencies from my
> program if this change were made.

Hum, something get added to coops. Suggest you define the following in your 
code:

(define-inline (*subclass? c1 c2) (or (eq? c1 c2) (subclass? c1 c2)))

(define (instance-of? x class) (*subclass? (class-of x) class))

subclass? & class-of are part of coops.

> 
> Thank you,
> 
> John Foerch
> 
> 
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