What is wrong with this code? Running on ruby 1.8.6
#=================================module MFoo
def printme
puts ''MFooPrint''
end
def initialize
puts ''init''
end
end
class Foo
include MFoo
def printme
puts ''FooPrint''
end
end
class Foo2 < Foo
def printme
super.printme
end
end
s = Foo2.new;
s.printme
#=================================
This code outputs:
------------------------------------------------------------------------
C:/Users/Volodymyr/Documents/NetBeansProjects/RubyApplication3/lib/
main.rb:17:in `printme'': undefined method `printme'' for
nil:NilClass
(NoMethodError)
init
FooPrint
from C:/Users/Volodymyr/Documents/NetBeansProjects/
RubyApplication3/lib/main.rb:22
On Apr 28, 6:02 pm, Volodymyr Gl <int...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> class Foo2 < Foo > def printme > super.printme > end > end >in ruby super calls the ancestor method. No need to append .printme Fred
Fred, thank you very much! On Apr 28, 10:35 pm, Frederick Cheung <frederick.che...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> On Apr 28, 6:02 pm, Volodymyr Gl <int...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > class Foo2 < Foo > > def printme > > super.printme > > end > > end > > in ruby super calls the ancestor method. No need to append .printme > > Fred