From: ts <decoux@...>
Date: 2001-10-27T22:09:51+09:00
Subject: [ruby-talk:23620] Re: sleeping, calling methods inside class defs

>>>>> "T" == Tobias Reif <tobiasreif@pinkjuice.com> writes:


T> class Tobi
T>    def sleep

 you define the instance method sleep (or Tobi#sleep)

T>      print "rzzzzz..\n"
T>    end

T>    sleep

 you call the method sleep in the class context (i.e. self is Tobi),
 because there is no class method with the name `sleep' (only instance
 method) it find Kernel#sleep and call it.


T> class Tobi
T>    def hi
T>      print "hi!\n"
T>    end
T>    hi
T> end

 Same here you define Tobi#hi (instance method) and call Tobi::hi (class
 method) 

T> works; but how can I use the method inside the class?

 You need to define a class method, for example

   class Tobi
      def self.hi       # or Tobi::hi
         print "hi !\n"
      end

      hi
   end


Guy Decoux