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PDD 15: Objects

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Dan Sugalski

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Feb 17, 2004, 1:42:12 PM2/17/04
to perl6-i...@perl.org
This should be complete, now. I chopped out the bit in the draft
about the API, so it has the ops, the vtable methods, and the
examples. I expect it needs some work, so please, have at it and lets
work out its deficiencies.

(Note that the reason for explicit attribute access, rather than
using the P5["foo"] scheme, is that we may well have an object that
acts like a hash or array, so we can't coopt the array/hash access
method for attributes. But I digress, though I didn't explain
properly earlier)
--
Dan

--------------------------------------"it's like this"-------------------
Dan Sugalski even samurai
d...@sidhe.org have teddy bears and even
teddy bears get drunk

Leopold Toetsch

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Feb 17, 2004, 4:31:08 PM2/17/04
to Dan Sugalski, perl6-i...@perl.org
Dan Sugalski wrote:

> (Note that the reason for explicit attribute access, rather than using
> the P5["foo"] scheme, is that we may well have an object that acts like
> a hash or array, so we can't coopt the array/hash access method for
> attributes. But I digress, though I didn't explain properly earlier)

Thought about that too and your argument is very reasonable. Does that
also mean that we have no shortcuts for setting an attribute to a native
item (set PObj["a"], 1) or is that just postponed? And what about named
access of arguments, *if* I just done't care about speed?
leo

Dan Sugalski

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Feb 17, 2004, 5:01:03 PM2/17/04
to Leopold Toetsch, perl6-i...@perl.org
At 10:31 PM +0100 2/17/04, Leopold Toetsch wrote:
>Dan Sugalski wrote:
>
>>(Note that the reason for explicit attribute access, rather than
>>using the P5["foo"] scheme, is that we may well have an object that
>>acts like a hash or array, so we can't coopt the array/hash access
>>method for attributes. But I digress, though I didn't explain
>>properly earlier)
>
>Thought about that too and your argument is very reasonable. Does
>that also mean that we have no shortcuts for setting an attribute to
>a native item (set PObj["a"], 1) or is that just postponed?

Postponed. While it'd be nice to not do it, as has been pointed out
to me it allows for much tighter packing of things, so we'll do it
eventually, just not now.

> And what about named access of arguments, *if* I just done't care
>about speed?

I thought that was in the PDD, but I'll go double-check. I might've
munched something inadvertently. If it's missing I'll add it back in,
as being able to fetch by fully-qualified name is useful for
introspective code.

Abhijit A. Mahabal

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Mar 30, 2004, 4:31:29 PM3/30/04
to za...@zachlipton.com, perl6-i...@perl.org
Tinderbox "aniani" is not working with the latest copy. I checked the
other boxes and they seem fine.

Part of the log:

==========================
about to cvs checkout parrot:
/home/perlcvs: no such repository
cvs checkout: authorization failed: server cvs.perl.org rejected access to
/home/perlcvs for user anonymous
cvs checkout: used empty password; try "cvs login" with a real password
cvs checkout complete

About to run build command: perl Configure.pl --defaults
Parrot Version 0.0.9 Configure 2.0
Copyright (C) 2001-2002 Yet Another Society
==========================


--Abhijit


Abhijit A. Mahabal http://www.cs.indiana.edu/~amahabal/

Dan Sugalski

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Mar 31, 2004, 8:00:37 AM3/31/04
to Abhijit A. Mahabal, za...@zachlipton.com, perl6-i...@perl.org
At 4:31 PM -0500 3/30/04, Abhijit A. Mahabal wrote:
>Tinderbox "aniani" is not working with the latest copy. I checked the
>other boxes and they seem fine.
>
>Part of the log:
>
>==========================
>about to cvs checkout parrot:
>/home/perlcvs: no such repository

Ah, that's finally gone away. The repository path is /cvs/publoc.
What you're using's very old, though there was a temporary symlink in
for a while.

Robert Spier

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Mar 31, 2004, 10:24:10 PM3/31/04
to Dan Sugalski, Abhijit A. Mahabal, za...@zachlipton.com, perl6-i...@perl.org
> >about to cvs checkout parrot:
> >/home/perlcvs: no such repository
>
> Ah, that's finally gone away. The repository path is /cvs/publoc.
> What you're using's very old, though there was a temporary symlink in
> for a while.

It's been gone for months and months.

And you mean /cvs/public.

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