From: Yuval Kogman <nothingmuch@woobling.org>
Date: Mon, 19 May 2008 08:04:34 +0000 (+0000)
Subject: add the splice method, a generalization of insert
X-Git-Tag: 0.18_01~36
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=331e1af071868ee1c56f59091da141822c7542b0;p=gitmo%2FMooseX-AttributeHelpers.git

add the splice method, a generalization of insert
---

diff --git a/lib/MooseX/AttributeHelpers/MethodProvider/Array.pm b/lib/MooseX/AttributeHelpers/MethodProvider/Array.pm
index 7366081..3ea71b4 100644
--- a/lib/MooseX/AttributeHelpers/MethodProvider/Array.pm
+++ b/lib/MooseX/AttributeHelpers/MethodProvider/Array.pm
@@ -115,7 +115,26 @@ sub insert : method {
         };
     }    
 }
- 
+
+sub splice : method {
+    my ($attr, $reader, $writer) = @_;
+    if ($attr->has_type_constraint && $attr->type_constraint->isa('Moose::Meta::TypeConstraint::Parameterized')) {
+        my $container_type_constraint = $attr->type_constraint->type_parameter;
+        return sub { 
+            my ( $self, $i, $j, @elems ) = @_;
+            ($container_type_constraint->check($_)) 
+                || confess "Value " . (defined($_) ? $_ : 'undef') . " did not pass container type constraint" for @elems;
+            CORE::splice @{$self->$reader()}, $i, $j, @elems;
+        };                    
+    }
+    else {                
+        return sub {
+            my ( $self, $i, $j, @elems ) = @_;
+            CORE::splice @{$self->$reader()}, $i, $j, @elems;
+        };
+    }    
+}
+
 1;
 
 __END__
@@ -164,6 +183,8 @@ see those provied methods, refer to that documentation.
 
 =item B<insert>
 
+=item B<splice>
+
 =back
 
 =head1 BUGS