From: Jon Harrop <jon@ffconsultancy.com>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Help me find this pdf
Date: Thu, 18 Oct 2007 13:25:30 +0100 [thread overview]
Message-ID: <200710181325.30668.jon@ffconsultancy.com> (raw)
In-Reply-To: <c1490a380710180252u37034212l9d9ee28a22dca9cc@mail.gmail.com>
On Thursday 18 October 2007 10:52:26 Tom wrote:
> Not long ago I was searching the Internet on the topic "combining eager and
> lazy evaluation", and have run over a paper which I obviously dismissed as
> "not interesting enough", yet now I have realized that it could indeed be
> useful, but am unable to find it.
>
> I know it was talking about a useful primitive, I do not know how exactly
> it was named, which checked whether values passed as arguments to functions
> were lazy (blocks to be evaluated) or eager (already evaluated), and using
> it some functions, e.g. map (this example was present in the paper) could
> be implemented to be both eager and lazy at the same time, depending on the
> arguments.
>
> Does anyone recognize this description?
Scala can do something similar by controlling evaluation simply by altering
the signature. However, I've reviewed Haskell recently and I think complete
laziness is more of a hindrance than a benefit. The only think I'd like to
see added to eager FPLs is the ability to pattern match over lazy values,
forcing them only when necessary.
--
Dr Jon D Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/products/?e
next prev parent reply other threads:[~2007-10-18 12:34 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-18 9:52 Tom
2007-10-18 10:33 ` [Caml-list] " skaller
2007-10-18 11:01 ` Andreas Rossberg
2007-10-18 12:25 ` Jon Harrop [this message]
2007-10-18 12:40 ` Arnaud Spiwack
2007-10-18 13:17 ` Jon Harrop
2007-10-18 15:15 ` Till Varoquaux
2007-10-18 12:46 ` Jacques Garrigue
2007-10-18 13:57 ` Jon Harrop
2007-10-18 14:22 ` Brian Hurt
2007-10-18 14:52 ` Robert Fischer
2007-10-18 15:04 ` Eric Cooper
2007-10-18 17:18 ` Jon Harrop
2007-10-19 1:16 ` skaller
2007-10-19 5:09 ` Bárður Árantsson
2007-10-19 5:23 ` [Caml-list] " Erik de Castro Lopo
2007-10-19 5:46 ` Bárður Árantsson
2007-10-19 12:25 ` [Caml-list] " Christophe Raffalli
2007-10-19 12:47 ` Luc Maranget
2007-10-20 14:26 ` Christophe Raffalli
2007-10-19 14:48 ` Robert Fischer
2007-10-19 21:43 ` Andreas Rossberg
2007-10-19 21:51 ` Robert Fischer
2007-10-20 13:10 ` Andreas Rossberg
2007-10-19 23:10 ` Jon Harrop
2007-10-20 1:13 ` skaller
2007-10-20 6:36 ` Tom
2007-10-21 11:17 ` skaller
2007-10-19 8:55 ` Zheng Li
2007-10-19 22:27 ` [Caml-list] " Jon Harrop
2007-10-19 13:00 ` [Caml-list] " Brian Hurt
2007-10-19 13:49 ` Loup Vaillant
2007-10-19 14:41 ` Zheng Li
2007-10-19 23:09 ` [Caml-list] " Jon Harrop
2007-10-18 20:07 ` Tom
2007-10-19 0:59 ` skaller
2007-10-18 20:48 ` Lauri Alanko
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