Rename LT::Set::Mutable to ::Container

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

diff --git a/lib/LaTeX/TikZ/Formatter.pm b/lib/LaTeX/TikZ/Formatter.pm
index a5bda82f88ffa32c445c7f0f5157ac4389ed4e11..afdbd388c93d3aa8f36f74b3342c581be61dacc1 100644 (file)
--- a/lib/LaTeX/TikZ/Formatter.pm
+++ b/lib/LaTeX/TikZ/Formatter.pm
@@ -212,10 +212,9 @@ my $find_mods = do {
     }
    }
 
-   my @subsets = ($set->isa('LaTeX::TikZ::Set::Sequence')
-                  || $set->isa('LaTeX::TikZ::Set::Union'))
-                   ? $set->kids
-                   : ();
+   my @subsets = $set->does('LaTeX::TikZ::Set::Container')
+                 ? $set->kids
+                 : ();
 
    $find_mods_rec->($_, $layers, $others) for @subsets;
   });