Introduce LaTeX::TikZ::Functor

[perl/modules/LaTeX-TikZ.git] / lib / LaTeX / TikZ / Set / Line.pm

diff --git a/lib/LaTeX/TikZ/Set/Line.pm b/lib/LaTeX/TikZ/Set/Line.pm
index 13c4618eb7d7b97e476c6942c90dcab19869be16..819ccb9972c5ed3d9483f326ce0a718a18819786 100644 (file)
--- a/lib/LaTeX/TikZ/Set/Line.pm
+++ b/lib/LaTeX/TikZ/Set/Line.pm
@@ -17,6 +17,8 @@ our $VERSION = '0.01';
 
 use LaTeX::TikZ::Set::Point;
 
+use LaTeX::TikZ::Functor;
+
 use Any::Moose;
 
 with 'LaTeX::TikZ::Set::Op';
@@ -47,6 +49,13 @@ use LaTeX::TikZ::Interface line => sub {
  __PACKAGE__->new(from => $_[0], to => $_[1]);
 };
 
+LaTeX::TikZ::Functor->default_rule(
+ (__PACKAGE__) => sub {
+  my ($functor, $set, @args) = @_;
+  $set->new(map { $_ => $set->$_->$functor(@args) } qw/from to/)
+ }
+);
+
 __PACKAGE__->meta->make_immutable;
 
 =head1 AUTHOR