From: Christophe TROESTLER <Christophe.Troestler@umh.ac.be>
To: caml-list@inria.fr
Subject: Re: [Caml-list] The universal variable 'a would escape its scope
Date: Thu, 06 Jan 2005 02:56:05 +0100 (CET) [thread overview]
Message-ID: <20050106.025605.73797717.Christophe.Troestler@umh.ac.be> (raw)
In-Reply-To: <20050106.092413.25912872.garrigue@math.nagoya-u.ac.jp>
On Thu, 06 Jan 2005, Jacques Garrigue <garrigue@math.nagoya-u.ac.jp> wrote:
>
> The workaround is to use a class-type:
>
> # class type t = object method output : (string -> unit) -> unit end;;
> class type t = object method output : (string -> unit) -> unit end
> # class a = object
> method f : 'a. (#t as 'a) -> unit = fun o -> o#output print_string
> end;;
> class a : object method f : #t -> unit end
>
> This does exactly what you want.
Thanks,
ChriS
prev parent reply other threads:[~2005-01-06 1:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-05 18:14 Christophe TROESTLER
2005-01-06 0:24 ` [Caml-list] " Jacques Garrigue
2005-01-06 1:56 ` Christophe TROESTLER [this message]
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