1 files changed, 7 insertions, 0 deletions
diff --git a/lib/puppet/parser/resource.rb b/lib/puppet/parser/resource.rb
index 46be89ca2..b001e165b 100644
--- a/lib/puppet/parser/resource.rb
+++ b/lib/puppet/parser/resource.rb
@@ -82,12 +82,19 @@ class Puppet::Parser::Resource
     # Do any finishing work on this object, called before evaluation or
     # before storage/translation.
     def finish
+        return if finished?
+        @finished = true
         add_defaults()
         add_metaparams()
         add_scope_tags()
         validate()
     end
 
+    # Has this resource already been finished?
+    def finished?
+        defined?(@finished) and @finished
+    end
+
     def initialize(options)
         # Set all of the options we can.
         options.each do |option, value|