How can I get a reference to a method?

Question

Is it possible in Ruby to get a reference to methods of an object ( I would like to know if this can be done without procs/lambdas ) , for example , consider the following c

Answer 1

Ruby methods aren't first-class objects; it implements OO with message passing.

class X
  def call(a)
    self.send(:a, a) if a > 10
    self.send(:b, a) if a > 20
    self.send(:c, a) if a > 30
  end

  def a(arg)
     puts "a was called with #{arg}"
  end

  def b(arg)
     puts "b was called with #{arg}"
  end

  def c(arg)
    puts "c was called with #{arg}"
  end
end

Or just call them directly:

def call(a)
  self.a(a) if a > 10
  self.b(a) if a > 20
  self.c(a) if a > 30
end