Add Task#[]

lib/rscons/task.rb

@@ -131,6 +131,21 @@ module Rscons
       modify(options, &block)
     end
 
+    # Get a parameter's value.
+    #
+    # @param param_name [String]
+    #   Parameter name.
+    #
+    # @return [String]
+    #   Parameter value.
+    def [](param_name)
+      param = @params[param_name]
+      unless param
+        raise RsconsError.new("Could not find parameter '#{param_name}'")
+      end
+      param.value
+    end
+
     # Execute a task's actions.
     #
     # @return [void]