101 lines
3.2 KiB
RPMSpec
101 lines
3.2 KiB
RPMSpec
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#
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# spec file for package perl-Perl6-Attributes
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#
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# Copyright (c) 2011 SUSE LINUX Products GmbH, Nuernberg, Germany.
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#
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# All modifications and additions to the file contributed by third parties
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# remain the property of their copyright owners, unless otherwise agreed
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# upon. The license for this file, and modifications and additions to the
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# file, is the same license as for the pristine package itself (unless the
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# license for the pristine package is not an Open Source License, in which
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# case the license is the MIT License). An "Open Source License" is a
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# license that conforms to the Open Source Definition (Version 1.9)
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# published by the Open Source Initiative.
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# Please submit bugfixes or comments via http://bugs.opensuse.org/
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#
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Name: perl-Perl6-Attributes
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Version: 0.04
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Release: 1
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License: GPL+ or Artistic
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%define cpan_name Perl6-Attributes
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Summary: Perl 6-like member variable syntax
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Url: http://search.cpan.org/dist/Perl6-Attributes/
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Group: Development/Libraries/Perl
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Source: http://www.cpan.org/authors/id/L/LP/LPALMER/%{cpan_name}-%{version}.tar.gz
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BuildArch: noarch
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BuildRoot: %{_tmppath}/%{name}-%{version}-build
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BuildRequires: perl
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BuildRequires: perl-macros
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%{perl_requires}
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%description
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I found myself annoyed when I wrote the following code in one of my recent
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projects:
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sub populate {
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my ($self, $n) = @_;
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for (1..$n) {
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push @{$self->{organisms}}, Organism->new(rand($self->{width}), rand($self->{height}));
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}
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}
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Three '$self's in one line! And it's really not encoding any information,
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it's just clutter that results from Perl's lack of _explicit_
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object-oriented support. However, Using the magic of source filters, we can
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now write it:
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sub populate {
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my ($self, $n) = @_;
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for (1..$n) {
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push @.organisms, Organism->new(rand($.width), rand($.height));
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}
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}
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Perl6::Attributes takes the Perl 6 secondary sigil '.' and translates it
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into a hash access on '$self'. No, it doesn't support other names for your
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invocant (but it could very easily; I'm just lazy), and no, it doesn't
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support objects written by crazy people based on array, scalar, or (!) glob
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references.
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You still inflect the primary sigil, unlike in Perl 6. See the
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Perl6::Variables manpage for a way to use Perl 6's uninflected sigils...
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but don't expect it to work with this module.
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There's also a nice little "feature" that you get for trading the ability
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to name your variables the same with different sigils (by the way, you
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can't do that). Say $self->{foo} is an array ref:
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@.foo; # the array itself
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$.foo; # the reference
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Which means that even if you're using an array referentially, you can
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usually avoid writing those pesky '@{}'s everywhere.
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Perl6::Attributes now also translates './method' and './method(args)' to
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'$self-'method> and '$self-'method(args)>.
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%prep
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%setup -q -n %{cpan_name}-%{version}
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%build
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%{__perl} Makefile.PL INSTALLDIRS=vendor
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%{__make} %{?_smp_mflags}
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%check
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%{__make} test
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%install
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%perl_make_install
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%perl_process_packlist
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%perl_gen_filelist
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%files -f %{name}.files
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%defattr(-,root,root,755)
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%doc README
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%changelog
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