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From: "Ryan Tarpine" <rtarpine@hotmail.com>
To: caml-list@inria.fr
Subject: [Caml-list] Type variables won't generalize
Date: Wed, 03 Apr 2002 17:21:59 -0500
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I have an odd typing problem, odd because it occurs only when using ocamlc 
and not ocaml.  I've cut my code down to the following small snippet:

type 'a my_object = {
  partner : 'a my_object ref;
  data : 'a ref
};;

let rec object1 = {
  partner = ref object2;
  data = ref `PNone
}
and object2 = {
  partner = ref object2;
  data = ref `PNone
};;

That runs fine when passed to ocaml, but when I run it through ocamlc I get:

File "foo.ml", line 6, characters 18-66:
The type of this expression, _[> `PNone] my_object,
contains type variables that cannot be generalized

What's wrong with my code?  Thanks in advance!

Ryan Tarpine, rtarpine@hotmail.com
"To err is human, to compute divine.  Trust your computer but not its 
programmer."
  - Morris Kingston

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