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From: David Allsopp <dra-news@metastack.com>
To: OCaml List <caml-list@inria.fr>
Subject: RE: [Caml-list] More existential escapes (or possibly first class polymorphism)
Date: Sun, 22 Mar 2015 11:20:53 +0000	[thread overview]
Message-ID: <E51C5B015DBD1348A1D85763337FB6D9E99EE0D2@Remus.metastack.local> (raw)
In-Reply-To: <CAAxsn=FGT+C=Dv3UVU81uSurVdXRorsXD7b=pjkOOWYG-YsQTw@mail.gmail.com>

Jeremy Yallop wrote:
> On 20 March 2015 at 16:29, David Allsopp <dra-news@metastack.com> wrote:
> > Is there some other wizardry on offer which can allow the polymorphic
> > nature of [f] to be inferred?
> 
> Unfortunately not.  OCaml doesn't infer polymorphic types for function
> parameters.

Thanks - it's useful to know to stop looking :o)

Is there an unsoundness reason why there isn't a type annotation which can allow it be specified, rather than inferred, that a function argument is polymorphic? Or is that the "purity" of wanting the type system of the core language to be inferable?


David

  reply	other threads:[~2015-03-22 11:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-20 16:29 David Allsopp
2015-03-20 16:43 ` Jeremy Yallop
2015-03-22 11:20   ` David Allsopp [this message]
2015-03-22 14:29     ` Gabriel Scherer

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