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Re: no more primitive data types in Java (JDK 10+). What do you think?

From BGB <cr88192@hotmail.com>
Newsgroups comp.lang.java.programmer
Subject Re: no more primitive data types in Java (JDK 10+). What do you think?
Date 2012-04-21 08:55 -0700
Organization albasani.net
Message-ID <jmuldc$a5h$1@news.albasani.net> (permalink)
References <jmq71h$su0$1@speranza.aioe.org> <cpl2p7h932qjsmgm4cn08cbhg7k9etu654@4ax.com> <qun869-glb.ln1@bernd.nawothnig.dialin.t-online.de>

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On 4/20/2012 11:53 AM, Bernd Nawothnig wrote:
> On 2012-04-20, Roedy Green wrote:
>> On Thu, 19 Apr 2012 18:27:43 -0500, "Nasser M. Abbasi"<nma@12000.org>
>> wrote, quoted or indirectly quoted someone who said :
>>
>>>     "Unified type system (JDK 10+)
>>>      No more primitives, make everything objects"
>>
>> This is the way Eiffel works,
>
> The same for Python.
>

ironically, in my case I went differently:
the root of the tree is not "objects", it is "variants", of which both 
the primitive/value types and objects are subtypes.

variants have the funky behavior that anything can be stored in a 
variant (no casting needed), but going the other way may throw an 
exception (the language does not require explicit up-casts in most 
cases, but is much more inclined to give warnings about them).

an "object" type also exists, but is generally considered an alias for 
"variant".

"Object" is not the root of the type-system, it is only the root of the 
class hierarchy (the class hierarchy and type-system are not regarded as 
equivalent in this language).


the ability to use ".toString()" on pretty much everything still exists 
though, except it doesn't currently do much useful for some types (many 
types which lack a sensible string representation will show up in a form 
like "#<typename:address>", which is the default syntax for anything 
lacking a known "toString()" method).


>> but under the covers there are still primitives. Perhaps what they
>> have in mind for Java, more intelligent boxing. At least at the low
>> levels of the JVM you need primitives.
>
> These implementation details should better be hidden and invisible for
> most cases. Let the compiler automatically detect and generate
> possible optimisations.
>
> A programming language should be as simple and orthogonal as possible.
>

actually, I personally think it should be as "useful" and "usable" as 
possible, with simplicity and orthogonality coming second.

otherwise, people could be off using very awkward toy languages in the 
name of simplicity and orthogonality, and this would hardly be a better 
outcome.

so, it is more of a set of trade-offs.

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Thread

no more primitive data types in Java (JDK 10+). What do you think? "Nasser M. Abbasi" <nma@12000.org> - 2012-04-19 18:27 -0500
  Re: no more primitive data types in Java (JDK 10+). What do you think? Arne Vajhøj <arne@vajhoej.dk> - 2012-04-19 20:02 -0400
    Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <lewbloch@gmail.com> - 2012-04-19 17:31 -0700
      Re: no more primitive data types in Java (JDK 10+). What do you think? Robert Klemme <shortcutter@googlemail.com> - 2012-04-20 15:45 +0200
        Re: no more primitive data types in Java (JDK 10+). What do you think? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-04-20 15:05 +0000
          Re: no more primitive data types in Java (JDK 10+). What do you think? Robert Klemme <shortcutter@googlemail.com> - 2012-04-20 19:32 +0200
        Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-20 20:47 -0700
    Re: no more primitive data types in Java (JDK 10+). What do you think? Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2012-04-19 17:45 -0700
      Re: no more primitive data types in Java (JDK 10+). What do you think? Arne Vajhøj <arne@vajhoej.dk> - 2012-04-19 21:22 -0400
      Re: no more primitive data types in Java (JDK 10+). What do you think? "Nasser M. Abbasi" <nma@12000.org> - 2012-04-19 21:16 -0500
        Re: no more primitive data types in Java (JDK 10+). What do you think? Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2012-04-19 23:11 -0700
  Re: no more primitive data types in Java (JDK 10+). What do you think? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-04-19 21:35 -0300
    Re: no more primitive data types in Java (JDK 10+). What do you think? Arne Vajhøj <arne@vajhoej.dk> - 2012-04-19 21:31 -0400
    Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <lewbloch@gmail.com> - 2012-04-19 19:22 -0700
      Re: no more primitive data types in Java (JDK 10+). What do you think? Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2012-04-19 23:15 -0700
        Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-20 07:45 -0700
          Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-20 08:20 -0700
            Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-20 19:57 -0700
              Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-21 04:25 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-04-21 07:05 -0500
                Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-21 07:42 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-21 12:55 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-21 13:27 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-21 13:34 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-21 14:01 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-04-21 23:48 +0000
                Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-21 17:46 -0700
        Re: no more primitive data types in Java (JDK 10+). What do you think? Gene Wirchenko <genew@ocis.net> - 2012-04-20 08:08 -0700
          Re: no more primitive data types in Java (JDK 10+). What do you think? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-04-20 16:46 +0000
            Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <lewbloch@gmail.com> - 2012-04-20 12:52 -0700
        Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-20 08:17 -0700
          Re: no more primitive data types in Java (JDK 10+). What do you think? Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2012-04-20 09:02 -0700
            Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <lewbloch@gmail.com> - 2012-04-20 12:48 -0700
            Re: no more primitive data types in Java (JDK 10+). What do you think? David Lamb <dalamb@cs.queensu.ca> - 2012-04-20 21:08 -0400
              Re: no more primitive data types in Java (JDK 10+). What do you think? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-04-21 01:55 +0000
                Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-21 04:28 -0700
  Re: no more primitive data types in Java (JDK 10+). What do you think? Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-04-19 19:36 -0500
  Re: no more primitive data types in Java (JDK 10+). What do you think? Tsukino Usagi <usagi@tsukino.ca> - 2012-04-20 15:27 +0900
    Re: no more primitive data types in Java (JDK 10+). What do you think? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-04-20 07:04 -0300
      Re: no more primitive data types in Java (JDK 10+). What do you think? Tsukino Usagi <usagi@tsukino.ca> - 2012-04-20 22:17 +0900
        Re: no more primitive data types in Java (JDK 10+). What do you think? Robert Klemme <shortcutter@googlemail.com> - 2012-04-20 15:59 +0200
      Re: no more primitive data types in Java (JDK 10+). What do you think? Thufir <hawat.thufir@gmail.com> - 2012-04-20 14:21 -0700
      Re: no more primitive data types in Java (JDK 10+). What do you think? Arne Vajhøj <arne@vajhoej.dk> - 2012-04-20 19:11 -0400
    Re: no more primitive data types in Java (JDK 10+). What do you think? Tsukino Usagi <usagi@tsukino.ca> - 2012-04-20 22:16 +0900
      Re: no more primitive data types in Java (JDK 10+). What do you think? Robert Klemme <shortcutter@googlemail.com> - 2012-04-20 15:55 +0200
    Re: no more primitive data types in Java (JDK 10+). What do you think? Patricia Shanahan <pats@acm.org> - 2012-04-20 07:49 -0700
      Re: no more primitive data types in Java (JDK 10+). What do you think? Arne Vajhøj <arne@vajhoej.dk> - 2012-04-20 19:19 -0400
        Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-21 07:58 -0700
    Re: no more primitive data types in Java (JDK 10+). What do you think? rossum <rossum48@coldmail.com> - 2012-04-20 20:08 +0100
      Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <lewbloch@gmail.com> - 2012-04-20 12:54 -0700
        Re: no more primitive data types in Java (JDK 10+). What do you think? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-04-20 21:48 +0000
          Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <lewbloch@gmail.com> - 2012-04-20 16:45 -0700
            Re: no more primitive data types in Java (JDK 10+). What do you think? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-04-21 01:56 +0000
              Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-21 04:35 -0700
      Re: no more primitive data types in Java (JDK 10+). What do you think? Jim Janney <jjanney@shell.xmission.com> - 2012-04-20 16:24 -0600
    Re: no more primitive data types in Java (JDK 10+). What do you think? Arne Vajhøj <arne@vajhoej.dk> - 2012-04-20 19:08 -0400
    Re: no more primitive data types in Java (JDK 10+). What do you think? Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-04-20 18:14 -0500
      Re: no more primitive data types in Java (JDK 10+). What do you think? Arne Vajhøj <arne@vajhoej.dk> - 2012-04-20 19:22 -0400
      Re: no more primitive data types in Java (JDK 10+). What do you think? Arne Vajhøj <arne@vajhoej.dk> - 2012-04-20 20:36 -0400
  Re: no more primitive data types in Java (JDK 10+). What do you think? Roedy Green <see_website@mindprod.com.invalid> - 2012-04-20 05:33 -0700
    Re: no more primitive data types in Java (JDK 10+). What do you think? Bernd Nawothnig <Bernd.Nawothnig@t-online.de> - 2012-04-20 20:53 +0200
      Re: no more primitive data types in Java (JDK 10+). What do you think? Gene Wirchenko <genew@ocis.net> - 2012-04-20 13:36 -0700
        Re: no more primitive data types in Java (JDK 10+). What do you think? Bernd Nawothnig <Bernd.Nawothnig@t-online.de> - 2012-04-21 10:20 +0200
          Re: no more primitive data types in Java (JDK 10+). What do you think? Gene Wirchenko <genew@ocis.net> - 2012-04-23 10:24 -0700
            Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-24 14:39 -0700
              Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <lewbloch@gmail.com> - 2012-04-24 15:06 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-24 17:07 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-25 00:48 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-25 08:20 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-25 08:59 -0700
                Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-25 10:32 -0700
              Re: no more primitive data types in Java (JDK 10+). What do you think? Tsukino Usagi <usagi@tsukino.ca> - 2012-04-29 23:03 +0900
                Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-29 10:28 -0700
      Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-21 08:55 -0700
        Re: no more primitive data types in Java (JDK 10+). What do you think? Lew <noone@lewscanon.com> - 2012-04-21 12:56 -0700
          Re: no more primitive data types in Java (JDK 10+). What do you think? BGB <cr88192@hotmail.com> - 2012-04-21 13:41 -0700
  Re: no more primitive data types in Java (JDK 10+). What do you think? Silvio Bierman <silvio@moc.com> - 2012-04-20 16:50 +0200
    Re: no more primitive data types in Java (JDK 10+). What do you think? Arne Vajhøj <arne@vajhoej.dk> - 2012-04-20 19:04 -0400

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