lib/nanoc/base/entities/context.rb in nanoc-4.8.18 vs lib/nanoc/base/entities/context.rb in nanoc-4.8.19

@@ -49,10 +49,18 @@
       end
     end
 
     def respond_to_missing?(method, include_all)
       ivar_name = '@' + method.to_s
-      instance_variable_defined?(ivar_name) || super
+
+      valid_ivar_name =
+        if defined?(Contracts)
+          ivar_name =~ /\A@[A-Za-z_]+\z/
+        else
+          true # probably good enough
+        end
+
+      (valid_ivar_name && instance_variable_defined?(ivar_name)) || super
     end
 
     def include(mod)
       metaclass = class << self; self; end
       metaclass.instance_eval { include(mod) }