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Message-ID: <200707231942.57226.larry@garfieldtech.com>
Subject: Re: [PHP-DEV] Question about Namespace patch
From: larry@garfieldtech.com (Larry Garfield)

I'm fine with single-import-with-alias, from the descriptions here. =20
Effectively, then, there is no concept of "import".  There is just an alias=
,=20
and mass-operation aliasing is quite messy.

I am more curious how far it goes in the supporting utilities.  I saw that=
=20
there is a __NAMESPACE__ constant, which is nice.  Is there also a way to g=
et=20
the "full name" of a function or class, so you can see where it came from? =
=20
Does import work for functions as well as classes? =20

Where I can see a huge use for namespaces is plugin-based architectures.  E=
ach=20
plugin is its own namespace.  If you have a list of plugins, then you have =
a=20
list of namespaces and can iterate over that and invoke the same operation =
on=20
each plugin.  That would require call_user_func() and call_user_func_array(=
)=20
and the rest of that family to be able to handle namespaces.  How would one=
=20
do that?  Vis, is the callback type[1] namespace aware, or does it not have=
=20
to be?

(If this is already documented somewhere, please let me know where.)

[1]=20
http://us.php.net/manual/en/language.pseudo-types.php#language.types.callba=
ck

On Monday 23 July 2007, David Z=FClke wrote:
> That's exactly how import w/ aliasing is supposed to be used, you got
> that perfectly right.
>
>
> David
>
> Am 23.07.2007 um 20:40 schrieb Markus Fischer:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > Hi Andrew,
> >
> > Andrew Minerd wrote:
> >> Well, first of all, not exactly. I think you meant: not import
> >> everything from two or more namespaces with conflicting names.
> >> Secondly, that's not the only solution. You could import
> >> everything from one, and not import from the other (or use a
> >> shorter prefix). Thirdly, you're not preventing collisions _at all_:
> >>
> >> import Zend::DB;
> >> import My::DB;
> >> import Woot::Database as DB;
> >
> > I don't quite understand your example. When I look at it in real
> > life, I
> > would go for:
> >
> > import Zend::DB as ZBD;
> > import My::DB as MDB;
> > import Woot::Database as DB;
> >
> > I mean, that's is the point, to have more readable code =3D=3D shorter
> > identifiers, isn't it?
> >
> > So your code continues to read (just made up):
> >
> > $oZdb =3D ZDB::factor('mysql');
> > $oMdb =3D MDB::getInstance('oracle');
> > $oWdb =3D DB::getDriver('postgres');
> >
> > instead of:
> >
> > $oZdb =3D Zend::DB:factor...
> > $oMdb =3D My::DB::getInstance
> > $oWdb =3D Woot::Database::getDriver..
> >
> > Isn't that a win, at last?
> >
> > That's how I understood. Maybe I got that wrong.
> >
> > - - Markus
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.4.6 (MingW32)
> > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
> >
> > iD8DBQFGpPYT1nS0RcInK9ARAmQmAKDGsYj/ZY0FNojQobKb3bK2NL6QDgCcDKgl
> > LnyIP65ymnx180f7/WD5WfM=3D
> > =3DLjpG
> > -----END PGP SIGNATURE-----
> >
> > --
> > PHP Internals - PHP Runtime Development Mailing List
> > To unsubscribe, visit: http://www.php.net/unsub.php


=2D-=20
Larry Garfield			AIM: LOLG42
larry@garfieldtech.com		ICQ: 6817012

"If nature has made any one thing less susceptible than all others of=20
exclusive property, it is the action of the thinking power called an idea,=
=20
which an individual may exclusively possess as long as he keeps it to=20
himself; but the moment it is divulged, it forces itself into the possessio=
n=20
of every one, and the receiver cannot dispossess himself of it."  -- Thomas=
=20
Jefferson