[Caml-list] exposing module types

[Charles Martin <joelisp@yahoo.com>]

I obviously have the wrong model of what's going on here:

	% cat foolib.ml
	module Foo = struct
	  module type INTF = sig
	    type 'a fruit = Apple of 'a
	  end
	  module Impl : INTF = struct
	    type 'a fruit = Apple of 'a
	  end
	  type 'a fruit = 'a Impl.fruit
	end
	include Foo
	% ocamlc -a -o foolib.cma foolib.ml

Now, when I try to use foolib in the following way:

	open Foolib

	let apple = Apple 3
	let apple = Foo.Apple 3
	let apple = Foo.Impl.Apple 3

The only one that works is "Foo.Impl.Apple" - the others receive "Unbound constructor" messages.  I hope my intention is clear; in foolib I meant to expose the constructors at the higher levels.  What am I doing wrong?

Thanks,

Charles


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