Reverting part of the switch to sets in SimpleGraph

Unfortunately, again because of a Ruby bug
(http://rubyforge.org/tracker/?group_id=426&atid=1698&func=detail&aid=8886)
Ruby can't print yaml that it can read, if custom
classes are used as keys in hashes, which Sets use internally.

Signed-off-by: Luke Kanies <luke@madstop.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/puppet/simple_graph.rb b/lib/puppet/simple_graph.rb
index 05420eab9..97098325b 100644
--- a/lib/puppet/simple_graph.rb
+++ b/lib/puppet/simple_graph.rb
@@ -102,7 +102,7 @@ class Puppet::SimpleGraph
 
     def initialize
         @vertices = {}
-        @edges = Set.new
+        @edges = []
     end
 
     # Clear our graph.
@@ -226,7 +226,7 @@ class Puppet::SimpleGraph
     def remove_vertex!(vertex)
         return nil unless vertex?(vertex)
         @vertices[vertex].edges.each { |edge| remove_edge!(edge) }
-        @edges.subtract(@vertices[vertex].edges)
+        @edges -= @vertices[vertex].edges
         @vertices[vertex].clear
         @vertices.delete(vertex)
     end
@@ -276,7 +276,7 @@ class Puppet::SimpleGraph
     end
 
     def edges
-        @edges.to_a
+        @edges.dup
     end
 
     # Remove an edge from our graph.