package Package::Variant;
use strictures 1;
-use Carp qw( croak );
+use Import::Into;
+use Module::Runtime qw(use_module);
+use Carp qw(croak);
+
+our $VERSION = '1.000000'; # 1.0.0
+
+$VERSION = eval $VERSION;
our %Variable;
return \@imports;
};
+my $sub_namer = eval {
+ require Sub::Name; sub { shift if @_ > 2; Sub::Name::subname(@_) }
+} || sub { $_[-1] };
+
sub import {
my $target = caller;
my $me = shift;
sub build_variant_of {
my ($me, $variable, @args) = @_;
my $variant_name = "${variable}::_Variant_".++$Variable{$variable}{anon};
- my $import = $Variable{$variable}{args}{importing};
- my $setup = join("\n",
- "package ${variant_name};",
- (map sprintf(
- q!use %s %s;!,
- $import->[$_][0],
- scalar(@{$import->[$_][1]})
- ? sprintf(
- q!@{$import->[%d][1]}!,
- $_,
- )
- : '',
- ), 0..$#$import),
- "1;",
- );
- eval $setup
- or die "evaling ${setup} failed: $@";
+ foreach my $to_import (@{$Variable{$variable}{args}{importing}}) {
+ my ($pkg, $args) = @$to_import;
+ use_module($pkg)->import::into($variant_name, @{$args});
+ }
my $subs = $Variable{$variable}{subs};
local @{$subs}{keys %$subs} = map $variant_name->can($_), keys %$subs;
local $Variable{$variable}{install} = sub {
- my ($name, $ref) = @_;
+ my $full_name = "${variant_name}::".shift;
+
+ my $ref = $sub_namer->($full_name, @_);
+
no strict 'refs';
- *{"${variant_name}::${name}"} = $ref;
+ *$full_name = $ref;
};
$variable->make_variant($variant_name, @args);
return $variant_name;
The import method will be called even if the list of import arguments is
empty or not specified,
+If you just want to import a single package's default exports, you can
+also pass a string instead:
+
+ use PAckage::Variant importing => 'Package';
+
=head2 subs
An array reference of strings listing the names of subroutines that should
=head1 AUTHOR
-=over
+mst - Matt S. Trout (cpan:MSTROUT) <mst@shadowcat.co.uk>
-=item mst - Matt S. Trout (cpan:MSTROUT) <mst@shadowcat.co.uk>
+=head1 CONTRIBUTORS
-=back
+phaylon - Robert Sedlacek (cpan:PHAYLON) <r.sedlacek@shadowcat.co.uk>
=head1 COPYRIGHT
-Copyright (c) 2010-2011 the C<Package::Stash> L</AUTHOR> as listed above.
+Copyright (c) 2010-2011 the C<Package::Variant> L</AUTHOR> and
+L</CONTRIBUTORS> as listed above.
=head1 LICENSE