Re: Polymorphic recursion 9Was Re: [Caml-list] Doubly-linked list)

[Brian Rogoff <bpr@artisan.com>]

Diego Olivier Fernandez Pons writes:
> I do not agree with your analysis since I really do not believe anyone
> could think that polymorphic recursion is useless. 

Every feature in a programming language has to be evaluated in a large 
context. There are lot's of useful features that OCaml doesn't have. Would
you add them all? 

I never said polymorphic recursion was useless, and I'd like direct support
for it added, so your claim that my analysis suggests it's uselessness
indicates that I am communicating very badly. I'll just be quiet on this 
topic. 

> Your trick 

Actually, Jacques Garrigue's trick

http://caml.inria.fr/archives/199809/msg00032.html

but I just noticed that OCaml 3.05 has the same first class polymorphism on 
records and since there was no use of class features like dynamic binding
that a record dictionary is even better. 

BTW, the Caml mailing list archive is a really great resource. 

-- Brian
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