X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;f=lib%2FLaTeX%2FTikZ%2FMod%2FLayer.pm;h=bfab947ddfbaa4e291eeab1a198a47ed4a688e2a;hb=39ceba3937f8397bcb0874419d78f3c4adc427fb;hp=ca0b2bd6cc026ae40014d422dbe45317009b1579;hpb=93bfe14caec156fc11587863a486220b986b6b2e;p=perl%2Fmodules%2FLaTeX-TikZ.git

diff --git a/lib/LaTeX/TikZ/Mod/Layer.pm b/lib/LaTeX/TikZ/Mod/Layer.pm
index ca0b2bd..bfab947 100644
--- a/lib/LaTeX/TikZ/Mod/Layer.pm
+++ b/lib/LaTeX/TikZ/Mod/Layer.pm
@@ -15,7 +15,8 @@ Version 0.01
 
 our $VERSION = '0.01';
 
-use List::Util ();
+use Scalar::Util ();
+use List::Util   ();
 
 use LaTeX::TikZ::Mod::Formatted;
 
@@ -78,9 +79,11 @@ around 'new' => sub {
  if (defined $name) {
   $self->meta->find_attribute_by_name('name')
              ->type_constraint->assert_valid($name);
-  confess("Can't redefine layer '$name'") if keys(%args) > 1;
   my $layer = $layers{$name};
-  return $layer if defined $layer;
+  if (defined $layer) {
+   confess("Can't redefine layer '$name'") if keys(%args) > 1;
+   return $layer;
+  }
  }
 
  return $self->$orig(%args);
@@ -89,7 +92,9 @@ around 'new' => sub {
 sub BUILD {
  my ($self) = @_;
 
- $layers{$self->name} = $self;
+ my $name = $self->name;
+ $layers{$name} = $self;
+ Scalar::Util::weaken($layers{$name});
 }
 
 sub DEMOLISH {
@@ -188,10 +193,11 @@ sub apply {
  )
 }
 
-use LaTeX::TikZ::API layer => sub {
+use LaTeX::TikZ::Interface layer => sub {
  shift;
 
- __PACKAGE__->new(name => $_[0]);
+ my $name = shift;
+ __PACKAGE__->new(name => $name, @_);
 };
 
 __PACKAGE__->meta->make_immutable(