Test Crystal macro reflect

crystal_macro_reflect.cr

macro new_instance(clazz, args)
  {{clazz.id}}.new({{*args}})
end

module Util
  class A
    getter msg

    def initialize(@msg)

    end
  end
end

m = "Hello #{Time.now}"
a = new_instance("Util::A", [m])

puts a.msg