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package # hide me from PAUSE
next;
use strict;
use warnings;
no warnings 'redefine'; # for 00load.t w/ core support
use Scalar::Util 'blessed';
our $VERSION = '0.33';
our %METHOD_CACHE;
sub method {
my $self = $_[0];
my $class = blessed($self) || $self;
my $indirect = caller() =~ /^(?:next|maybe::next)$/;
my $level = $indirect ? 2 : 1;
my ($method_caller, $label, @label);
while ($method_caller = (caller($level++))[3]) {
@label = (split '::', $method_caller);
$label = pop @label;
last unless
$label eq '(eval)' ||
$label eq '__ANON__';
}
my $method;
my $caller = join '::' => @label;
$method = $METHOD_CACHE{"$class|$caller|$label"} ||= do {
my @MRO = Class::C3::calculateMRO($class);
my $current;
while ($current = shift @MRO) {
last if $caller eq $current;
}
no strict 'refs';
my $found;
foreach my $class (@MRO) {
next if (defined $Class::C3::MRO{$class} &&
defined $Class::C3::MRO{$class}{methods}{$label});
last if (defined ($found = *{$class . '::' . $label}{CODE}));
}
$found;
};
return $method if $indirect;
die "No next::method '$label' found for $self" if !$method;
goto &{$method};
}
sub can { method($_[0]) }
package # hide me from PAUSE
maybe::next;
use strict;
use warnings;
no warnings 'redefine'; # for 00load.t w/ core support
our $VERSION = '0.33';
sub method { (next::method($_[0]) || return)->(@_) }
1;
__END__
=pod
=head1 NAME
Class::C3::next - Pure-perl next::method and friends
=head1 DESCRIPTION
This module is used internally by L<Class::C3> when
necessary, and shouldn't be used (or required in
distribution dependencies) directly. It
defines C<next::method>, C<next::can>, and
C<maybe::next::method> in pure perl.
=head1 AUTHOR
Stevan Little, E<lt>stevan@iinteractive.comE<gt>
Brandon L. Black, E<lt>blblack@gmail.comE<gt>
=head1 COPYRIGHT AND LICENSE
Copyright 2005, 2006 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
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