From: Matej Kosik <5764c029b688c1c0d24a2e97cd764f@gmail.com>
To: caml-list <caml-list@inria.fr>
Subject: Re: [Caml-list] Error: This variant or record definition does not match that of type ... Their kinds differ.
Date: Thu, 17 Aug 2017 15:58:15 +0200 [thread overview]
Message-ID: <10ff4b6f-705a-6c92-0868-51cd7dc742ab@gmail.com> (raw)
In-Reply-To: <2389e7d7-5590-22d6-3322-605d9a5b20c3@gmail.com>
On 08/17/2017 03:55 PM, Matej Kosik wrote:
> Hi,
>
> If my "b.mli" file contains the following code:
>
> (*1*) module rec A :
> (*2*) sig
> (*3*) type t = T1
> (*4*) end
> (*5*)
> (*6*) and B :
> (*7*) sig
> (*8*) type t = A.t = T1
> (*9*) end
>
> and I try to compile it like this:
>
> ocamlc -c b.ml
I made a mistake. I had:
ocamlc -c b.mli
in mind.
>
> then I get the following error:
>
> File "b.mli", line 8, characters 9-26:
> Error: This variant or record definition does not match that of type A.t
> Their kinds differ.
>
> I am wondering what does this error message mean?
> What is the kind of A.t?
> What is the kind of B.t?
> Why are the kinds of of B.t and A.t different?
>
prev parent reply other threads:[~2017-08-17 13:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-17 13:55 Matej Kosik
2017-08-17 13:58 ` Matej Kosik [this message]
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