From: skaller <skaller@users.sourceforge.net>
To: Jacques Garrigue <garrigue@math.nagoya-u.ac.jp>
Cc: daniel.buenzli@epfl.ch, caml-list@inria.fr
Subject: Re: [Caml-list] Fwd: "ocaml_beginners"::[] Trouble combining polymorphic classes and polymorphic methods
Date: Wed, 28 Feb 2007 16:09:11 +1100 [thread overview]
Message-ID: <1172639351.19033.111.camel@rosella.wigram> (raw)
In-Reply-To: <20070228.130115.35466734.garrigue@math.nagoya-u.ac.jp>
On Wed, 2007-02-28 at 13:01 +0900, Jacques Garrigue wrote:
> From: Daniel Bünzli <daniel.buenzli@epfl.ch>
[]
> The theoretical problem with structural types is more about very bad
> luck: you may be using two libraries, which seem to be using the same
> type (same constructor or method names), but actually have different
> semantics.
This is possible with nominal typing too, it just requires
even 'badder' luck .. we probably all know the famous OO
example of a 'drawable' abstraction with instance 'gun' :)
--
John Skaller <skaller at users dot sf dot net>
Felix, successor to C++: http://felix.sf.net
next prev parent reply other threads:[~2007-02-28 5:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <301730110702251747y72ae9fbdqd33bd8d08293cbe3@mail.gmail.com>
2007-02-27 21:22 ` Geoffrey Romer
2007-02-28 0:23 ` [Caml-list] " Jacques Garrigue
2007-02-28 1:18 ` Lukasz Stafiniak
2007-02-28 1:34 ` Jacques Garrigue
2007-02-28 1:57 ` skaller
2007-02-28 3:23 ` Daniel Bünzli
2007-02-28 4:01 ` Jacques Garrigue
2007-02-28 5:09 ` skaller [this message]
2007-02-28 13:47 ` Daniel Bünzli
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