From: "Lukasz Stafiniak" <lukstafi@gmail.com>
To: "ocaml ml" <caml-list@inria.fr>
Subject: Polymorphic recursion, please
Date: Thu, 20 Sep 2007 13:51:18 +0200 [thread overview]
Message-ID: <4a708d20709200451p247b08ceodc65f23dd8e2c017@mail.gmail.com> (raw)
Hello,
I've been beaten by lack of polymorphic recursion again. I propose the
following syntax:
let rec (f :> ty) = ...
Here, all type variables (explicit and implicit) in ty are
generalized. The alternative syntax:
let rec (f : 'a b c . ty) = ...
makes it more difficult (if possible? I forgot.) to catch implicit row
variables (I'm using polymorphic variants for subtyping).
next reply other threads:[~2007-09-20 11:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-20 11:51 Lukasz Stafiniak [this message]
2007-09-20 12:24 ` Lukasz Stafiniak
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