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From: Jeremy Yallop <jeremy.yallop@ed.ac.uk>
To: Dario Teixeira <darioteixeira@yahoo.com>
Cc: Wolfgang Lux <wlux@uni-muenster.de>, caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Troublesome nodes
Date: Sat, 12 Jul 2008 19:27:43 +0100	[thread overview]
Message-ID: <4878F79F.30604@ed.ac.uk> (raw)
In-Reply-To: <761520.40658.qm@web54603.mail.re2.yahoo.com>

Dario Teixeira wrote:
>     and convert_super_node node = match node with
>         | #nonlink_node_t   -> (convert_nonlink_node node :> super_node_t)
>         | #link_node_t      -> (convert_link_node node :> super_node_t)

You need to rebind the matched value within the pattern in order to 
refine the type on the rhs:

and convert_super_node node = match node with
| #nonlink_node_t as node -> (convert_nonlink_node node :> super_node_t)
| #link_node_t    as node -> (convert_link_node node :> super_node_t)

Jeremy.


  reply	other threads:[~2008-07-12 18:27 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-11 20:39 Dario Teixeira
2008-07-11 21:20 ` [Caml-list] " Jeremy Yallop
2008-07-12 12:37   ` Dario Teixeira
2008-07-12 13:25     ` Jacques Carette
2008-07-12 16:44     ` Wolfgang Lux
2008-07-12 18:21       ` Dario Teixeira
2008-07-12 18:27         ` Jeremy Yallop [this message]
2008-07-12 18:58       ` Jacques Carette
2008-07-11 23:11 ` Zheng Li
2008-07-13 14:32 ` [Caml-list] " Dario Teixeira
2008-07-13 17:39   ` Dario Teixeira
2008-07-13 21:10     ` Jon Harrop
2008-07-14 15:11       ` Dario Teixeira
2008-07-14 18:52         ` Dario Teixeira
2008-07-14 19:37           ` Jeremy Yallop
2008-07-16 21:22             ` Dario Teixeira
2008-07-17  0:43             ` Jacques Garrigue
2008-07-17 10:59               ` Jeremy Yallop
2008-07-18  2:34                 ` Jacques Garrigue
2008-07-18  9:47                   ` Jeremy Yallop
2008-07-18 13:02                     ` Jacques Garrigue
2008-07-18 13:55                       ` Jacques Garrigue
2008-07-19  2:15                         ` Jacques Garrigue
2008-07-17 16:12               ` Dario Teixeira
2008-07-18  2:27                 ` Jacques Garrigue
2008-07-18 13:09                   ` Dario Teixeira
2008-07-18 17:36                     ` Dario Teixeira
2008-07-19  2:23                       ` Jacques Garrigue
2008-07-19  8:43                         ` Dario Teixeira

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