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From: Alain Frisch <frisch@clipper.ens.fr>
To: Jacques Garrigue <garrigue@kurims.kyoto-u.ac.jp>
Cc: <pixel@mandrakesoft.com>, <caml-list@inria.fr>
Subject: Re: [Caml-list] [Q]: Co(ntra)variance and subtyping?
Date: Mon, 19 Nov 2001 12:03:06 +0100 (MET)	[thread overview]
Message-ID: <Pine.GSO.4.33.0111191154580.25287-100000@clipper.ens.fr> (raw)
In-Reply-To: <20011119093329G.garrigue@kurims.kyoto-u.ac.jp>

On Mon, 19 Nov 2001, Jacques Garrigue wrote:

> In the ML world, we mean complete type inference.

What does complete type inference mean ?  I would say that it implies
that no type annotation is mandatory (if a program typechecks with a type
annotation, it should also typecheck without). This property does not hold
in OCaml; you can't remove type annotation in:

class o = object method f (x : int) = x end

or in the toplevel structure:

let f () : [`A] = `A
let x = f ()


-- 
  Alain

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  parent reply	other threads:[~2001-11-19 11:03 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-11-16 19:37 Clemens Hintze
2001-11-17 14:18 ` Mark Wotton
2001-11-17 14:55   ` Mark Wotton
2001-11-17 17:50   ` [Caml-list] " Clemens Hintze
2001-11-17 23:17     ` Mark Wotton
2001-11-18  9:16       ` Clemens Hintze
2001-11-18 13:18         ` Alain Frisch
2001-11-19  9:54           ` Remi VANICAT
     [not found]       ` <9t7v4d$gij$1@qrnik.zagroda>
2001-11-18 11:57         ` Marcin 'Qrczak' Kowalczyk
2001-11-18 13:34 ` [Caml-list] " Andreas Rossberg
2001-11-18 21:22   ` Pixel
2001-11-19  0:33     ` Jacques Garrigue
2001-11-18 22:35       ` David Gurr
2001-11-19  7:24         ` [Caml-list] " Clemens Hintze
2001-11-19 12:03           ` Markus Mottl
2001-11-19  8:29         ` [Caml-list] " Xavier Leroy
2001-11-19 11:03       ` Alain Frisch [this message]
2001-11-20  9:58         ` Didier Remy
2001-11-19 11:14       ` Pixel
2001-11-18 22:30   ` [Caml-list] Re: variance, subtyping and monads... oh, my! james woodyatt
2001-11-19  8:11     ` Francois Pottier
2001-11-19  9:02       ` james woodyatt
2001-11-19  9:58         ` Markus Mottl
2001-11-19 20:47           ` james woodyatt
2001-11-19 12:56       ` Frank Atanassow
2001-11-19 10:39     ` Andreas Rossberg
2001-11-19 12:21       ` Markus Mottl
2001-11-19 13:43         ` [Caml-list] Kylix and OCaml Christophe Raffalli
2001-11-20  2:05           ` Vitaly Lugovsky
2001-11-20  8:51             ` Christophe Raffalli
2001-11-22  1:42               ` Vitaly Lugovsky
2001-11-20 10:00             ` Benjamin Monate
2001-11-20 10:24               ` [Caml-list] [Bug in an interface between C++ and OCAML due to some pointer encapsulation] Sylvain Kerjean
2001-11-20 12:14             ` [Caml-list] Kylix and OCaml Maxence Guesdon

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