From: Jeremie Dimino <jeremie@dimino.org>
To: bob zhang <bobzhang1988@gmail.com>
Cc: Caml List <caml-list@inria.fr>
Subject: Re: [Caml-list] This ground coercion is not principal?
Date: Thu, 10 Jan 2013 16:06:37 -0500 [thread overview]
Message-ID: <20130110160637.76f34956@nyc-qws-033.delacy.com> (raw)
In-Reply-To: <CANcqPu5B3m6Zs1AszNnryAZtG=4jAEPUwRo2hmbngzR7GfEUhQ@mail.gmail.com>
On Thu, 10 Jan 2013 15:15:31 -0500
bob zhang <bobzhang1988@gmail.com> wrote:
> Hi List,
> I have came across a corner case in ocaml typing here,
> The source code is pasted below(extracted from a large code base), it
> triggers the warning 18.
> My question, is there any elegant solution without introducing local
> types?
You can use an explicit coercion: (self#ant a0 : ant :> _ mlist)
Cheers,
Jeremie
next prev parent reply other threads:[~2013-01-10 21:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-10 20:15 bob zhang
2013-01-10 21:06 ` Jeremie Dimino [this message]
2013-01-10 21:12 ` bob zhang
2015-02-25 4:47 [Caml-list] "this ground coercion is not principal" Martin DeMello
2015-02-25 9:29 ` Jeremie Dimino
2015-02-25 10:38 ` Jeremy Yallop
2015-02-25 21:35 ` Martin DeMello
2015-02-25 23:04 ` Jeremy Yallop
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