lib/rgen/array_extensions.rb in rgen-0.4.1 vs lib/rgen/array_extensions.rb in rgen-0.4.2

@@ -9,15 +9,23 @@
 		compact.inject([]) { |r,e| r | ( (o=e.send(method)).is_a?(Array) ? o : [o] ) }
 	end
 	
 	def method_missing(m, *args)
 		super unless size == 0 or compact.any?{|e| e.is_a? RGen::MetamodelBuilder::MMBase}
-		compact.inject([]) { |r,e|
+		# use an array to build the result to achiev similar ordering
+		result = []
+		inResult = {}
+		compact.each do |e|
 			if e.is_a? RGen::MetamodelBuilder::MMBase				
-				r | ( (o=e.send(m)).is_a?(Array) ? o : [o] ) 
+				((o=e.send(m)).is_a?(Array) ? o : [o] ).each do |v|
+					next if inResult[v.object_id]
+					inResult[v.object_id] = true
+					result << v
+				end
 			else
 				raise StandardError.new("Trying to call a method on an array element not a RGen MMBase")
 			end
-		}.compact
+		end
+		result.compact
 	end
 
 end
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