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[Caml-list] Legality of using module types from .mli in .ml
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Date: 2003-01-15 (16:33)
From: Julien Signoles <Julien.Signoles@l...>
Subject: [Caml-list] Re: Legality of using module types from .mli in .ml
Thorsten Ohl wrote:
> I'm often referring to module types defined in an interface file in
> order to reduce redundancy.  For example
>     $ cat a.mli
>     module type T = sig val n : int end
>     module M : T
>     $ cat
>     module type T = A.T
>     module M : T = struct let n = 42 end
> where T can be rather long.  Is this legal?

For me, your module type declaration should be illegal in But the
ocaml compiler accepts it... 
So, is it an ocaml bug ? Orelse what is the exact semantic of (.mli,
.ml) ?
> The reason I'm asking this, is that my shorthand [as in (a.mli, aml)]
> breaks Julien Signoles' defunctorizer.

The previous example doesn't break my defunctorizer :

	$ ocamldefun --version
	$ ocamldefun a.mli
	$ cat
	module type T = A.T
	module M = struct let n = 42 end

That's ok (normal because a.mli is still in the ocamldefun environment
when is defunctorized)...
Can you report me your example breaking my defunctorizer ?

Julien Signoles.

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