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use 5.008;
use strict;
use warnings;
package Sub::HandlesVia::HandlerLibrary;
our $AUTHORITY = 'cpan:TOBYINK';
our $VERSION = '0.052000';
use Types::Standard qw( Any Item );
sub _type_inspector {
my ($me, $type) = @_;
if (!$type or $type == Any or $type == Item) {
return {
trust_mutated => 'always',
};
}
return { trust_mutated => 'never' };
}
{
my %cache;
sub get_handler {
my ($me, $handler_name) = @_;
$cache{$me} ||= $me->_populate_cache;
$cache{$me}{$handler_name} ? $me->$handler_name : undef;
}
sub has_handler {
my ($me, $handler_name) = @_;
$cache{$me} ||= $me->_populate_cache;
exists $cache{$me}{$handler_name};
}
}
# This is not necessarily an exhaustive list, however if it is non-exhaustive
# then subclasses must override get_handler and has_handler.
#
sub handler_names {
no strict 'refs';
@{ $_[0] . '::METHODS' }
}
sub _populate_cache {
my %hash;
$hash{$_} = 1 for $_[0]->handler_names;
\%hash;
}
sub expand_shortcut {
use Carp;
Carp::croak( "Not implemented" );
}
sub preprocess_spec {
return;
}
1;
|
