From: Frederic De Jaeger <Frederic.De.Jaeger@ens.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] strange behaviour with variants and "cannot be g eneralized"
Date: 10 Sep 2003 13:34:25 +0200 [thread overview]
Message-ID: <yrvekyozxku.fsf@cedre.ens.fr> (raw)
In-Reply-To: <1063187322.2119.118.camel@localhost.localdomain>
skaller> They not only allow more accurate typing,
skaller> they're also *faster*. For example,
skaller> consider a restriction of a term type
skaller> in which rewriting rules reduce some
skaller> sugars to lower level primitive
skaller> (for example macro expansion).
[example skipped]
That's right, in this case they are faster. But the pattern matching
against polymorphic variants is slightly slower than the
non-polymorphic ones. The later can be compiled as a parametric
jump.
Cheers,
Frédéric De Jaeger
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next prev parent reply other threads:[~2003-09-10 11:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-10 7:10 Beck01, Wolfgang
2003-09-10 8:12 ` Fernando Alegre
2003-09-10 8:18 ` Jacques Garrigue
2003-09-10 10:39 ` skaller
2003-09-10 9:48 ` skaller
2003-09-10 11:34 ` Frederic De Jaeger [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-09-09 14:13 Beck01, Wolfgang
2003-09-09 19:17 ` Didier Remy
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