lib/build/environment/evaluator.rb in build-environment-1.5.0 vs lib/build/environment/evaluator.rb in build-environment-1.6.0

@@ -21,17 +21,18 @@
 module Build
 	class Environment
 		class Evaluator
 			def initialize(environment)
 				@environment = environment
+				@cache = {}
 			end
 			
 			def respond_to?(name, include_private = false)
 				@environment.include?(name) || super
 			end
 			
 			def method_missing(name)
-				object_value(@environment[name])
+				@cache[name] ||= object_value(@environment[name])
 			end
 			
 			# Compute the literal object value for a given key:
 			def object_value(value)
 				case value