From: "Dawid Toton" <d0@wp.pl>
To: "caml-list" <caml-list@inria.fr>
Subject: Attach an invariant to a type
Date: Thu, 31 Jan 2008 14:28:54 +0100 [thread overview]
Message-ID: <47a1cd167921b@wp.pl> (raw)
What should I do if I have need for the following? Does already exist
any equivalent solution?
I'd like to write:
type subindex = int invariant x -> (x>=10)&&(x<=100)
let doit (a:subindex) (b:subindex) =
let result = some_operation a b in
(result:subindex)
And it should be translated to:
type subindex = int
let subindex_invariant x = (x>=10)&&(x<=100)
let doit (a:subindex) (b:subindex) =
assert (subindex_invariant a);
assert (subindex_invariant b);
let result = some_operation a b in
assert (subindex_invariant result);
(result:subindex)
Am I going right direction at all?
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next reply other threads:[~2008-01-31 13:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-31 13:28 Dawid Toton [this message]
2008-01-31 13:50 ` [Caml-list] " Romain Bardou
2008-01-31 17:58 ` David Teller
2008-01-31 18:13 ` Romain Bardou
2008-01-31 19:13 ` Hezekiah M. Carty
2008-01-31 19:29 ` Stéphane Lescuyer
2008-01-31 19:51 ` Dawid Toton
2008-01-31 20:26 ` Edgar Friendly
2008-02-01 10:00 ` Keiko Nakata
2008-01-31 20:13 ` Romain Bardou
2008-02-10 18:00 ` Stéphane Glondu
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