From: Taylan Ulrich Bayirli/Kammer <taylanbayirli@gmail.com>
To: Marko Rauhamaa <marko@pacujo.net>
Cc: Carlos Pita <carlosjosepita@gmail.com>,
David Thompson <dthompson2@worcester.edu>,
"guile-user@gnu.org" <guile-user@gnu.org>
Subject: Re: A couple of questions about goops method parameters
Date: Sun, 07 Sep 2014 18:46:44 +0200 [thread overview]
Message-ID: <87d2b7e5u3.fsf@taylan.uni.cx> (raw)
In-Reply-To: <87ppf7edlw.fsf@elektro.pacujo.net> (Marko Rauhamaa's message of "Sun, 07 Sep 2014 16:58:51 +0300")
Marko Rauhamaa <marko@pacujo.net> writes:
> It's perfectly fine to avoid errors by generalizing semantics so I
> wouldn't mind if you did what you propose. However, the dynamic type
> system is necessary for the simple fact that you will need to define
> runtime semantics.
Oh, I was rather looking at things from a low-level perspective. E.g.
the "foo" string in my example was meant as a pointer, whose numeric
value plus 5 resulted in an integer whose underlying byte sequence is
then interpreted as an IEEE double.
In other words I was suggesting that "by default" there are only byte
sequences, and type systems help to work with these conveniently.
> No, the primary objective is not to prevent errors but to have
> well-defined semantics. Scheme, Python, C or Java would function
> perfectly well without any type error checking, static or dynamic. The
> results could be undefined or a burning computer, that doesn't matter.
> What matters is that you know what a well-defined program is supposed
> to do.
I think I understand your viewpoint, and it also makes sense: types
might not be essential to bit-crunching, but they are to abstract models
of computation.
> However, in my extensive practical experience, a static type system,
>
> [...]
Does that experience cover languages like SML, Ocaml, and Haskell? (Not
a rhetorical question, though I suspect it doesn't; at least not as much
as languages like C, C++, and Java.)
Taylan
next prev parent reply other threads:[~2014-09-07 16:46 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-03 2:05 A couple of questions about goops method parameters Carlos Pita
2014-09-03 15:49 ` Carlos Pita
2014-09-03 16:47 ` Marko Rauhamaa
2014-09-03 18:05 ` Carlos Pita
2014-09-03 16:20 ` Panicz Maciej Godek
2014-09-05 8:32 ` Nala Ginrut
2014-09-05 12:47 ` Carlos Pita
2014-09-05 19:03 ` Panicz Maciej Godek
2014-09-05 19:12 ` David Thompson
2014-09-05 19:35 ` Panicz Maciej Godek
2014-09-05 19:55 ` David Thompson
2014-09-05 20:10 ` Taylan Ulrich Bayirli/Kammer
2014-09-05 20:50 ` David Thompson
2014-09-07 10:33 ` Neil Jerram
2014-09-07 15:27 ` Taylan Ulrich Bayirli/Kammer
2014-09-05 20:10 ` Panicz Maciej Godek
2014-09-05 20:18 ` Taylan Ulrich Bayirli/Kammer
2014-09-05 20:37 ` Panicz Maciej Godek
2014-09-05 20:51 ` Marko Rauhamaa
2014-09-05 21:53 ` Taylan Ulrich Bayirli/Kammer
2014-09-05 22:26 ` Marko Rauhamaa
2014-09-05 20:44 ` Marko Rauhamaa
2014-09-05 21:08 ` Panicz Maciej Godek
2014-09-05 22:14 ` Marko Rauhamaa
2014-09-06 8:53 ` Panicz Maciej Godek
2014-09-06 10:44 ` Taylan Ulrich Bayirli/Kammer
2014-09-06 11:27 ` Marko Rauhamaa
2014-09-06 11:54 ` Taylan Ulrich Bayirli/Kammer
2014-09-06 23:46 ` Panicz Maciej Godek
2014-09-07 0:20 ` Marko Rauhamaa
2014-09-07 12:57 ` Taylan Ulrich Bayirli/Kammer
2014-09-07 13:58 ` Marko Rauhamaa
2014-09-07 16:46 ` Taylan Ulrich Bayirli/Kammer [this message]
2014-09-07 19:49 ` Marko Rauhamaa
2014-09-07 23:13 ` Taylan Ulrich Bayirli/Kammer
[not found] ` <CAPjoZoc7X7s+keog6avP62yvgJyQ3Ma_jomhw6xQq_rK9jnhVw@mail.gmail.com>
2014-09-06 16:57 ` Nala Ginrut
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