Why cant there be classes inside methods in Ruby?

Question

Can I create Ruby classes within functions bodies ? I seem to be getting error which tells me its not allowed but I think it should be as classes are too objects here.

Answer 1

you can create classes, but you cannot assign constants from inside a method.

this example works:

class A
  def a
    b = Class.new
    def b.xxx
      "XXX"
    end
    b
  end
end

a = A.new.a
p a         # #
p a.xxx     # "XXX"