From: Gerd Stolpmann <info@gerd-stolpmann.de>
To: Diego Olivier FERNANDEZ PONS <diego.fernandez_pons@etu.upmc.fr>
Cc: Jonathan Roewen <jonathan.roewen@gmail.com>, caml-list@inria.fr
Subject: Re: [Caml-list] Why + vs +. but "fake" parametric polymorphism for <
Date: Fri, 13 Oct 2006 14:14:22 +0200 [thread overview]
Message-ID: <1160741662.16545.9.camel@localhost.localdomain> (raw)
In-Reply-To: <20061013135650.48rwzsri8ws8coww@webmail.etu.upmc.fr>
Am Freitag, den 13.10.2006, 13:56 +0200 schrieb Diego Olivier FERNANDEZ
PONS:
> Bonjour,
>
> Quoting Jonathan Roewen <jonathan.roewen@gmail.com>:
> > That's correct. As showed, specifying types somewhere (as I did with
> > the return type, and someone else did for a given parameter), type
> > inference deduces the types of the parameters and return values,
> > allowing it optimise.
>
> As far as I remember it doesn't work when you specify the type in the
> .mli file. And I never understood really why.
Well, this is quite easy. The .mli file does not influence code
generation. Code is generated when the .ml file is compiled, and it is
only _checked_ afterwards if the types match the .mli file. This is
simply the logic of the .mli.
That an inlined function cannot be specialized afterwards has a similar
reason, because the part of code generation is already over that decides
whether the mono or polymorphic version is generated. This could be
probably be changed (but I don't know the details, so maybe this would
break something else).
Gerd
--
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Gerd Stolpmann * Viktoriastr. 45 * 64293 Darmstadt * Germany
gerd@gerd-stolpmann.de http://www.gerd-stolpmann.de
Phone: +49-6151-153855 Fax: +49-6151-997714
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next prev parent reply other threads:[~2006-10-13 12:14 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-12 5:18 Carlos Pita
2006-10-12 5:45 ` [Caml-list] " Jacques Garrigue
2006-10-12 5:58 ` Carlos Pita
2006-10-12 6:08 ` Jonathan Roewen
[not found] ` <452DF46C.802@fmf.uni-lj.si>
2006-10-12 14:26 ` Carlos Pita
2006-10-13 11:56 ` Diego Olivier FERNANDEZ PONS
2006-10-13 12:14 ` Gerd Stolpmann [this message]
2006-10-13 12:46 ` Diego Olivier FERNANDEZ PONS
2006-10-13 13:01 ` Luc Maranget
2006-10-13 13:15 ` Diego Olivier FERNANDEZ PONS
2006-10-13 13:15 ` skaller
2006-10-13 13:36 ` Luc Maranget
2006-10-13 13:53 ` Gerd Stolpmann
2006-10-13 14:16 ` Luc Maranget
2006-10-12 5:19 Carlos Pita
2006-10-12 5:41 ` [Caml-list] " Carlos Pita
2006-10-12 5:49 ` Basile STARYNKEVITCH
2006-10-12 5:53 ` Jonathan Roewen
2006-10-12 6:10 ` Carlos Pita
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