From: Goswin von Brederlow <goswin-v-b@web.de>
To: Dmitri Boulytchev <dboulytchev@gmail.com>
Cc: caml-list <caml-list@inria.fr>
Subject: Re: [Caml-list] Confusing behaviour of type inference for polymorphic classes.
Date: Thu, 5 Dec 2013 16:13:42 +0100 [thread overview]
Message-ID: <20131205151342.GA12720@frosties> (raw)
In-Reply-To: <529CA1C9.2050203@gmail.com>
On Mon, Dec 02, 2013 at 07:05:45PM +0400, Dmitri Boulytchev wrote:
> >I think this is caused by the recursion. The type inference assumes
> >that the recursive call will have the same type as the parent. Since
> >you switch 'a and 'b in the recursive call the compiler inferes that
> >'a == 'b.
> >
> I don't think we have a recursive call here since we call
> a method from *another* object.
>
> BR,
> DB
Different instance but same class and method. The type system is a bit
odd with objects sometimes.
MfG
Goswin
next prev parent reply other threads:[~2013-12-05 15:13 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-01 21:33 Dmitri Boulytchev
2013-12-02 14:41 ` Goswin von Brederlow
2013-12-02 15:05 ` Dmitri Boulytchev
2013-12-05 15:13 ` Goswin von Brederlow [this message]
2013-12-02 15:24 ` Jeremy Yallop
2013-12-03 8:35 ` Alain Frisch
2013-12-03 10:17 ` Jeremy Yallop
2013-12-03 12:33 ` Alain Frisch
2013-12-03 12:58 ` Jeremy Yallop
2013-12-03 17:49 ` Dmitri Boulytchev
2013-12-08 1:15 ` Jeremy Yallop
2013-12-09 13:48 ` Dmitri Boulytchev
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