lib/unitwise/ext/numeric.rb in unitwise-1.0.1 vs lib/unitwise/ext/numeric.rb in unitwise-1.0.2

@@ -18,16 +18,18 @@
   #   100.to_foot # => #<Unitwise::Measurement 100 foot>
   # @api semipublic
   def method_missing(meth, *args, &block)
     if args.empty? && !block_given?
       unit = (match = /\Ato_(\w+)\Z/.match(meth.to_s)) ? match[1] : meth
-      begin
-        res = convert_to(unit)
-        Numeric.define_unit_conversion_methods_for(unit)
-        res
+      converted = begin
+        convert_to(unit)
       rescue Unitwise::ExpressionError
-        super(meth, *args, &block)
+        nil
       end
+    end
+    if converted
+      Numeric.define_unit_conversion_methods_for(unit)
+      converted
     else
       super(meth, *args, &block)
     end
   end