From: Radzevich Belevich <radzevich.belevich@gmail.com>
To: Caml List <caml-list@inria.fr>
Subject: class type param constraint
Date: Thu, 09 Apr 2009 12:42:06 +0400 [thread overview]
Message-ID: <1239266526.2787.5.camel@serphost.localdomain> (raw)
class [ 'c ] a =
object(self)
constraint 'c = < .. >
method as_c = (self :> 'c)
method id = Oo.id self
end ;;
class ['a] a :
object ('a)
constraint 'a = < as_c : 'a; id : int; .. >
method as_c : 'a
method id : int
end
================
Why type 'c must have methods "as_c" and "id" ?
next reply other threads:[~2009-04-09 8:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-09 8:42 Radzevich Belevich [this message]
2009-04-09 10:10 ` [Caml-list] " Radzevich Belevich
2009-04-09 10:13 ` Jacques Garrigue
2009-04-09 10:21 ` Radzevich Belevich
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