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Recursive module and class
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Date: -- (:)
From: Keiko Nakata <keiko@k...>
Subject: Re: [Caml-list] Recursive module and class

To the best of my knowledge, there is subtle interaction 
between typing of recursive modules and unfolding of recursive structural types,
i.e, classes and polymorphic variants. 
I remember Jacques has hit a similar problem:

My understanding is that with recursive modules you may define two types 
that are equivalent but do not join together by simple unfolding 
of abbreviations; this seems to confuse the type checker. 
I believe this is a known bug of the current implementation
of the type checker. 

With best regards,