Bryan C. Warnock:
# On Saturday 22 December 2001 02:29 am, Brent Dax wrote:
# > I've been thinking about improvements that could be made to
# Exporter for
# > Perl 6.
# >
# > 1. Choosing where to export to:
# > use Data::Dumper 'Dumper' => 'dumpvar';
# > #exports Data::Dumper::Dumper to Main::dumpvar
# (or whatever)
#
# Where to import to. It's probably not a good idea to export
# into someone
# else's namespace. (Pull vs Push).
Ack, I hate terminology bugs. Import to. As for someone else's
namespace, under the current implementation (*bursts out laughing*) that
don't work too well anyway.
# > 2. Built-in switch handling:
# > use Data::Dumper ('Dumper' : qw(+Indent=2 +Useqq));
# > #imports Dumper, sets $Data::Dumper::Indent=2, and
# > # does $Data::Dumper::Useqq is true
#
# Is it more or less confusing (overall) to be mixing
# importation with simple,
# non-imported data initialization, as opposed to having it all
# be imported
# (with optional data initialization)?
There are already modules that do things like this. For example:
use CGI '-debug';
I'm just building that capability into Exporter. The other possibility
I can think of for it is like:
use Data::Dumper : '-Useqq'; #on
no Data::Dumper : '-Useqq'; #off
Except that will try to do Data::Dumper::import('Data::Dumper' :
'-Useqq'), unless we special case use/no. Ack. Maybe we can just mix
switches and non-switches:
use Data::Dumper qw(Dumper -Useqq);
Should work, I suppose.
BTW, can we genericize 'use' to work like an indirect-object method?
use Data::Dumper;
Data::Dumper.use; #same thing
# > 3. Warnings about conflicts:
# > use warnings 'Exporter';
# > sub Dumper { ... }
# > use Data::Dumper qw(Dumper);
# > #prints out a warning (not just 'redefined
# subroutine', either).
# > 4. For modules, saying 'use Exporter' should be enough
# to get import.
# > If you don't want Exporter's import(), just C<use
# Exporter()>.
# > 5. In addition to @EXPORT/@EXPORT_OK/%EXPORT_TAGS,
# provide a way to do
# > it on the 'use Exporter' line.
# >
# > So, with those requirements and what knowledge of Perl 6 I have, I
# > present a preliminary Exporter. I typed it directly into
# the mailer, so
# > there's a good chance of mistakes. If anyone spots any
# mistakes in it,
# > let me know.
#
# Well, I can't get it to run.... :-)
Darn, I was hoping you had brought a Perl 6 binary back from the
future... :^) Still, can you give it a once-over and tell me if you
notice anything?
--Brent Dax
[EMAIL PROTECTED]
Configure pumpking for Perl 6
"Nothing important happened today."
--George III of England's diary entry for 4-Jul-1776
