From: nr@eecs.harvard.edu (Norman Ramsey)
To: caml-list@inria.fr
Subject: type abbreviation for open polymorhic variants?
Date: Thu, 18 Aug 2005 17:03:43 -0400 (EDT) [thread overview]
Message-ID: <20050818210343.D8E391EB0C3@labrador.eecs.harvard.edu> (raw)
I wish to define an abbreviation for the following type:
[> `Nil
| `Number of float
| `String of string
| `Function of func
| `Table of table
]
I am assuming that the underlying machinery involves something like
row polymorphism, but I don't know how to name the 'row variable'.
I tried
type 'a t = ['a
| `Nil
| `Number of float
| `String of string
| `Function of func
| `Table of table
]
but this suggestion was roundly rejected by the compiler.
Does anybody know how to do this? I couldn't find anything in the
syntax for polymorphic-variant type expressions.
Norman
next reply other threads:[~2005-08-18 21:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-18 21:03 Norman Ramsey [this message]
2005-08-18 21:45 ` [Caml-list] " Jacques Garrigue
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