StrongTyping is a little ruby module that provides a convenient way for ruby methods to check parameter types, and also dynamically query them. In addition to merely checking a single set of types, it allows easy overloading based on a number of different templates.

Mějme funkci

     def foo(a, b)
         ...
      end

Now let's say this function wants 'a' to always be a String, and 'b' should be Numeric:

      require 'strongtyping'
      include StrongTyping

      def foo(a, b)
         expect(a, String, b, Numeric)
         ...
      end

Overloading is just as easy:

      require 'strongtyping'
      include StrongTyping

      def bar(*args)
         overload(args, String, String) {
            | s1, s2 |
            ...
            return
         }

         overload(args, String, Integer) {
            | s, i |
            ...
            return
         }

         overload_default args
      end