From: Ricardo Signes <rjbs@cpan.org>
Date: Fri, 23 Apr 2010 20:34:17 +0000 (-0400)
Subject: implement each_n_values for Indexed
X-Git-Tag: 0.11~4
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=f089b8562e348fcac1d2800545e88a69d484811f;p=gitmo%2FMoose-Autobox.git

implement each_n_values for Indexed
---

diff --git a/lib/Moose/Autobox/Hash.pm b/lib/Moose/Autobox/Hash.pm
index ed23052..ddf8c63 100644
--- a/lib/Moose/Autobox/Hash.pm
+++ b/lib/Moose/Autobox/Hash.pm
@@ -81,6 +81,18 @@ sub each_value {
     $sub->($_) for CORE::values %$hash;
 }
 
+sub each_n_values {
+    my ($hash, $n, $sub) = @_;
+    my @keys = CORE::keys %$hash;
+    my $it = List::MoreUtils::natatime($n, @keys);
+
+    while (my @vals = $it->()) {
+        $sub->(@$hash{ @vals });
+    }
+
+    return;
+}
+
 
 # End Indexed
 
diff --git a/lib/Moose/Autobox/Indexed.pm b/lib/Moose/Autobox/Indexed.pm
index 26a4893..3c80830 100644
--- a/lib/Moose/Autobox/Indexed.pm
+++ b/lib/Moose/Autobox/Indexed.pm
@@ -10,7 +10,7 @@ requires 'keys';
 requires 'values'; 
 requires 'kv';
 requires 'slice';
-requires qw(each each_key each_value);
+requires qw(each each_key each_value each_n_values);
 
 1;
 
diff --git a/t/011_each_n_values.t b/t/011_each_n_values.t
index 4f9dc29..15aeb43 100644
--- a/t/011_each_n_values.t
+++ b/t/011_each_n_values.t
@@ -26,4 +26,28 @@ use Moose::Autobox;
     }
 }
 
+{
+    my %hash = (a => 1, b => 2, c => 3, d => 4);
+
+    my $href = { %hash };
+
+    {
+        my @vals;
+        %hash->each_n_values(2, sub { push @vals, [@_] });
+        my %seen;
+        is(@vals, 2);
+        for my $pair (@vals) { $seen{$_}++ for @$pair }
+        is_deeply(\%seen, { 1,1,2,1,3,1,4,1 });
+    }
+
+    {
+        my @vals;
+        $href->each_n_values(2, sub { push @vals, [@_] });
+        my %seen;
+        is(@vals, 2);
+        for my $pair (@vals) { $seen{$_}++ for @$pair }
+        is_deeply(\%seen, { 1,1,2,1,3,1,4,1 });
+    }
+}
+
 done_testing;