lib/benchmark_driver/struct.rb in benchmark_driver-0.10.5 vs lib/benchmark_driver/struct.rb in benchmark_driver-0.10.6

@@ -54,10 +54,14 @@
       klass.prepend(Module.new {
         def initialize(**)
           super
           self.class.defaults.each do |key, value|
             if public_send(key).nil?
-              public_send("#{key}=", value.dup)
+              begin
+                value = value.dup
+              rescue TypeError # for Ruby <= 2.3, like `true.dup`
+              end
+              public_send("#{key}=", value)
             end
           end
         end
       })