Add a "join" provided method to lists (I do have a use case, shaddap!)

diff --git a/lib/MooseX/AttributeHelpers/MethodProvider/List.pm b/lib/MooseX/AttributeHelpers/MethodProvider/List.pm
index 82a1274..c3ffff3 100644 (file)
--- a/lib/MooseX/AttributeHelpers/MethodProvider/List.pm
+++ b/lib/MooseX/AttributeHelpers/MethodProvider/List.pm
@@ -53,6 +53,14 @@ sub elements : method {
     };
 }
 
+sub join : method {
+    my ($attr, $reader, $writer) = @_;
+    return sub {
+        my ($instance, $separator) = @_;
+        join $separator, @{$reader->($instance)}
+    };
+}
+
 1;
 
 __END__
@@ -92,6 +100,8 @@ L<MooseX::AttributeHelpers::Collection::List>.
 
 =item B<elements>
 
+=item B<join>
+
 =back
 
 =head1 BUGS

diff --git a/t/005_basic_list.t b/t/005_basic_list.t
index 7b85a10..5757f1c 100644 (file)
--- a/t/005_basic_list.t
+++ b/t/005_basic_list.t
@@ -3,7 +3,7 @@
 use strict;
 use warnings;
 
-use Test::More tests => 19;
+use Test::More tests => 21;
 use Test::Exception;
 
 BEGIN {
@@ -27,6 +27,7 @@ BEGIN {
             'grep'     => 'filter_options',
             'find'     => 'find_option',
             'elements' => 'options',
+            'join'     => 'join_options',
         }
     );
 }
@@ -42,6 +43,7 @@ can_ok($stuff, $_) for qw[
     filter_options
     find_option
     options
+    join_options
 ];
 
 is_deeply($stuff->_options, [1 .. 10], '... got options');
@@ -65,6 +67,8 @@ is($stuff->find_option(sub { $_[0] % 2 == 0 }), 2, '.. found the right option');
 
 is_deeply([ $stuff->options ], [1 .. 10], '... got the list of options');
 
+is($stuff->join_options(':'), '1:2:3:4:5:6:7:8:9:10', '... joined the list of options by :');
+
 ## test the meta
 
 my $options = $stuff->meta->get_attribute('_options');
@@ -77,6 +81,7 @@ is_deeply($options->provides, {
     'count'    => 'num_options',
     'empty'    => 'has_options',
     'elements' => 'options',
+    'join'     => 'join_options',
 }, '... got the right provies mapping');
 
 is($options->type_constraint->type_parameter, 'Int', '... got the right container type');