[r6rs-discuss] About record types

[John Cowan]

Stanislav Ievlev scripsit:
> Let's discuss records:
> 
> The record type descriptor constructor with 6 parameters is an overkill.
> A minimum one parameter "opaque?" may be moved out it.
> 
> We can move this flag to the fields, e.g.:
> ((immutable a) (mutable b #t) ...)
> 
> from R6RS:
> "Thus opasity as presented here can be used to enforce abstraction barriers."

Opacity is not the same as immutability.  Opacity means that you can't
even find out what fields there are.

-- 
Even a refrigerator can conform to the XML      John Cowan
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