X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;f=lib%2FLaTeX%2FTikZ%2FSet%2FSequence.pm;h=c4531218aec1c135e8143ec47ebed45cfdf84aa0;hb=b8f42942311854cb0ef8a3e34c0145846639cd2e;hp=b38aa6b8e088ae24457ecf93dd24855047050f7a;hpb=0f9d7c1a2d11bc7001fe450cb2086e67c13a39e9;p=perl%2Fmodules%2FLaTeX-TikZ.git

diff --git a/lib/LaTeX/TikZ/Set/Sequence.pm b/lib/LaTeX/TikZ/Set/Sequence.pm
index b38aa6b..c453121 100644
--- a/lib/LaTeX/TikZ/Set/Sequence.pm
+++ b/lib/LaTeX/TikZ/Set/Sequence.pm
@@ -9,11 +9,11 @@ LaTeX::TikZ::Set::Sequence - A set object grouping a sequence of objects.
 
 =head1 VERSION
 
-Version 0.01
+Version 0.02
 
 =cut
 
-our $VERSION = '0.01';
+our $VERSION = '0.02';
 
 use List::Util ();
 
@@ -24,7 +24,7 @@ use LaTeX::TikZ::Functor;
 
 use Any::Moose;
 use Any::Moose 'Util::TypeConstraints'
-               => [ qw/subtype as where find_type_constraint/ ];
+               => [ qw<subtype as where find_type_constraint> ];
 
 =head1 RELATIONSHIPS
 
@@ -32,15 +32,15 @@ This class consumes the L<LaTeX::TikZ::Set> and L<LaTeX::TikZ::Set::Mutable> rol
 
 =cut
 
-with qw(
+with qw<
  LaTeX::TikZ::Set
  LaTeX::TikZ::Set::Mutable
-);
+>;
 
 subtype 'LaTeX::TikZ::Set::Sequence::Elements'
      => as 'Object'
      => where {
-             $_->does('LaTeX::TikZ::Set::Op')
+             $_->does('LaTeX::TikZ::Set::Path')
           or $_->isa('LaTeX::TikZ::Set::Sequence')
      };
 
@@ -48,7 +48,7 @@ subtype 'LaTeX::TikZ::Set::Sequence::Elements'
 
 =head2 C<kids>
 
-The L<LaTeX::TikZ::Set::Op> or L<LaTeX::TikZ::Set::Sequence> objects that from the sequence.
+The L<LaTeX::TikZ::Set::Path> or L<LaTeX::TikZ::Set::Sequence> objects that from the sequence.
 
 =cut
 
@@ -86,9 +86,12 @@ sub add {
 sub draw {
  my $set = shift;
 
+ my @kids = $set->kids;
+ return [ ] unless @kids;
+
  List::Util::reduce { LaTeX::TikZ::Scope::fold($a, $b) }
   map $_->draw(@_),
-   $set->kids;
+   @kids;
 }
 
 LaTeX::TikZ::Interface->register(
@@ -110,7 +113,7 @@ __PACKAGE__->meta->make_immutable;
 
 =head1 SEE ALSO
 
-L<LaTeX::TikZ>, L<LaTeX::TikZ::Set::Op>, L<LaTeX::TikZ::Set::Mutable>.
+L<LaTeX::TikZ>, L<LaTeX::TikZ::Set::Path>, L<LaTeX::TikZ::Set::Mutable>.
 
 =head1 AUTHOR