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Groups > comp.lang.ruby > #2172

Re: Using variables in modules

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On Sun, 2011-04-03 at 09:30 +0900, Stefan Salewski wrote:
> Can I define a variable in a module, and access and redefine it later?

OK, this is very close to my desire:

module Gravity

#def initialize()
  @g = 9.81
#end

def self.get()
  @g
end

def self.set(g)
  @g = g
end

end

puts Gravity::get()

Gravity.set(9.8102) # we have done a more precice measurement

puts Gravity.get()

This gives output
stefan@AMD64X2 ~/pet $ ruby hhh.rb 
9.81
9.8102

Is there something like attr_accessor for modules, allowing writing
something like g=9.8102 and puts g instead of set and get methods?

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Using variables in modules Stefan Salewski <mail@ssalewski.de> - 2011-04-02 19:30 -0500
  Re: Using variables in modules Stefan Salewski <mail@ssalewski.de> - 2011-04-02 19:57 -0500
    Re: Using variables in modules Stefano Crocco <stefano.crocco@alice.it> - 2011-04-03 01:39 -0500
  Re: Using variables in modules Brian Candler <b.candler@pobox.com> - 2011-04-03 02:55 -0500
  Re: Using variables in modules spiralofhope <spiralofhope_rubyml@lavabit.com> - 2011-04-03 12:37 -0500
    Re: Using variables in modules Stefan Salewski <mail@ssalewski.de> - 2011-04-03 15:29 -0500
    Re: Using variables in modules Brian Candler <b.candler@pobox.com> - 2011-04-03 15:30 -0500

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