Another OOP thread; everything on the stack is an object

Newsgroups	comp.lang.forth
Date	2013-05-16 13:37 -0700
Message-ID	<b4066bda-e458-4763-bbd7-446f9f61377f@g9g2000vbl.googlegroups.com> (permalink)
Subject	Another OOP thread; everything on the stack is an object
From	Alex McDonald <blog@rivadpm.com>

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The "current object" thread and my investigations on a prototype based
object model for Forth has led me to think that it should be possible
to construct a stack based "everything is an object" language. Assume
a stack where each entry is an object (possibly implemented as some
form of closure pointer), and where every word (including numbers and
strings) are objects that respond to messages/methods. These are also
first class objects ala Javascript; the only distinction between an
object and a message is the stack effect.

For instance  1 DUP  can be considered as sending the message DUP to
the object 1, leaving two objects 1 1 on the stack.  1 2 +  sends the
message + to the object 2, which consumes the object 1 and leaves the
object 3 on the stack. Or  "abcd" "1" +  where the message + is sent
to the string object "1", producing the object "abcd1".

var x \ the object x
10 x ! \ send the store message to X
string y
"abcd" y !
y length x !
x . \ types 4

A sizable chunk of the resulting language is very Forth-like.
Thoughts?

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Another OOP thread; everything on the stack is an object Alex McDonald <blog@rivadpm.com> - 2013-05-16 13:37 -0700
  Re: Another OOP thread; everything on the stack is an object Bernd Paysan <bernd.paysan@gmx.de> - 2013-05-17 00:09 +0200
    Re: Another OOP thread; everything on the stack is an object hughaguilar96@yahoo.com - 2013-05-16 18:31 -0700
      Re: Another OOP thread; everything on the stack is an object Alex McDonald <blog@rivadpm.com> - 2013-05-17 05:38 -0700
    Re: Another OOP thread; everything on the stack is an object Alex McDonald <blog@rivadpm.com> - 2013-05-17 05:39 -0700
      Re: Another OOP thread; everything on the stack is an object Bernd Paysan <bernd.paysan@gmx.de> - 2013-05-19 00:09 +0200
        Re: Another OOP thread; everything on the stack is an object Ian Osgood <iano@quirkster.com> - 2013-05-25 11:36 -0700
          Re: Another OOP thread; everything on the stack is an object Paul Rubin <no.email@nospam.invalid> - 2013-05-25 13:10 -0700
  Re: Another OOP thread; everything on the stack is an object Ron Aaron <rambamist@gmail.com> - 2013-05-17 08:04 +0300
    Re: Another OOP thread; everything on the stack is an object Paul Rubin <no.email@nospam.invalid> - 2013-05-16 22:19 -0700
      Re: Another OOP thread; everything on the stack is an object Ron Aaron <rambamist@gmail.com> - 2013-05-17 08:26 +0300
        Re: Another OOP thread; everything on the stack is an object Paul Rubin <no.email@nospam.invalid> - 2013-05-16 22:43 -0700
          Re: Another OOP thread; everything on the stack is an object Ron Aaron <rambamist@gmail.com> - 2013-05-17 09:25 +0300
      Re: Another OOP thread; everything on the stack is an object Mark Wills <markrobertwills@yahoo.co.uk> - 2013-05-17 00:26 -0700
      Re: Another OOP thread; everything on the stack is an object anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-05-17 13:25 +0000
        Re: Another OOP thread; everything on the stack is an object Bernd Paysan <bernd.paysan@gmx.de> - 2013-05-19 00:34 +0200
          Re: Another OOP thread; everything on the stack is an object visualforth@rocketmail.com - 2013-05-18 15:55 -0700
            Re: Another OOP thread; everything on the stack is an object Bernd Paysan <bernd.paysan@gmx.de> - 2013-05-19 01:27 +0200
            Re: Another OOP thread; everything on the stack is an object Coos Haak <chforth@hccnet.nl> - 2013-05-19 01:35 +0200
    Re: Another OOP thread; everything on the stack is an object Mark Wills <markrobertwills@yahoo.co.uk> - 2013-05-17 00:29 -0700
      Re: Another OOP thread; everything on the stack is an object hughaguilar96@yahoo.com - 2013-05-18 19:38 -0700
    Re: Another OOP thread; everything on the stack is an object Alex McDonald <blog@rivadpm.com> - 2013-05-17 05:40 -0700
      Re: Another OOP thread; everything on the stack is an object Ron Aaron <rambamist@gmail.com> - 2013-05-17 16:18 +0300
    Re: Another OOP thread; everything on the stack is an object anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-05-17 12:50 +0000
      Re: Another OOP thread; everything on the stack is an object Paul Rubin <no.email@nospam.invalid> - 2013-05-17 06:09 -0700
      Re: Another OOP thread; everything on the stack is an object Ron Aaron <rambamist@gmail.com> - 2013-05-17 16:25 +0300
  Re: Another OOP thread; everything on the stack is an object alberto@hal-pc.org (Alberto) - 2013-05-17 14:35 +0000
  Re: Another OOP thread; everything on the stack is an object Steve <nospam275@gmail.com> - 2013-05-19 05:48 -0700
  Re: Another OOP thread; everything on the stack is an object Jason Damisch <jasondamisch@yahoo.com> - 2013-05-25 19:56 -0700

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