From: Alain Frisch <alain@frisch.fr>
To: Jacques Garrigue <garrigue@math.nagoya-u.ac.jp>,
OCaML List Mailing <caml-list@inria.fr>
Subject: Re: [Caml-list] Request for feedback: A problem with injectivity and GADTs
Date: Mon, 29 Apr 2013 13:23:06 +0200 [thread overview]
Message-ID: <517E581A.20506@frisch.fr> (raw)
In-Reply-To: <1EA5B7CE-C0C3-4113-9F8F-C4C3BC888D49@math.nagoya-u.ac.jp>
On 04/29/2013 12:52 PM, Jacques Garrigue wrote:
> What I want to know is whether anybody is using GADTs in a way that
> would be broken if we disallow type variables under abstract types
> (other than the predefined ones) in the return type of GADTs.
> I.e., for instance defining a type witness type involving such abstract types.
The only abstract types in the return type of GADTs in LexiFi's code
base code are currently either non-parametrized ones or built-in types
(array, lazy). So we'd be fine with the proposed fix (assuming that
abstract types are not injective).
-- Alain
next prev parent reply other threads:[~2013-04-29 11:23 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-28 0:02 Jacques Garrigue
2013-04-28 2:45 ` Markus Mottl
2013-04-28 10:28 ` Jacques Garrigue
2013-04-28 5:54 ` Jacques Le Normand
2013-04-29 3:45 ` Ivan Gotovchits
2013-04-29 4:03 ` Ivan Gotovchits
2013-04-29 5:17 ` Jacques Le Normand
2013-04-29 7:58 ` Alain Frisch
2013-04-29 10:52 ` Jacques Garrigue
2013-04-29 11:23 ` Alain Frisch [this message]
2013-04-29 16:37 ` Nathan Mishra Linger
2013-04-29 23:53 ` Jacques Garrigue
2013-04-30 5:45 ` Jacques Garrigue
2013-05-04 6:46 ` Jacques Garrigue
2013-05-04 7:09 ` Gabriel Scherer
2013-05-04 12:28 ` Jacques Garrigue
2013-04-30 6:59 ` Alain Frisch
2013-04-30 7:56 ` Jacques Garrigue
2013-04-30 8:02 ` Alain Frisch
2013-04-30 8:18 ` Jacques Garrigue
2013-04-30 9:11 ` Gabriel Scherer
2013-04-30 9:55 ` Jacques Garrigue
2013-04-30 10:12 ` Leo White
2013-04-30 11:30 ` Gabriel Scherer
2013-04-30 13:06 ` Leo White
2013-04-29 7:59 ` Gabriel Scherer
2013-07-01 14:47 ` Alain Frisch
2013-07-01 23:20 ` Jacques Garrigue
2013-07-03 16:08 ` Alain Frisch
2013-07-03 16:13 ` Gabriel Scherer
2013-07-04 6:07 ` [Caml-list] Request for feedback: A problem with injectivity oleg
2013-07-04 7:35 ` Alain Frisch
2013-07-05 10:30 ` oleg
2013-07-05 12:02 ` Alain Frisch
2013-07-04 1:00 ` [Caml-list] Request for feedback: A problem with injectivity and GADTs Jacques Garrigue
2013-07-04 8:14 ` Alain Frisch
2013-07-04 8:52 ` Jacques Garrigue
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