get instance variable name from itself in ruby

Question

I have an instance variable @foo and I want to write some code so that I get string \'foo\'

any hint?

Answer 1

class Object
    def get_name
      line_number = caller[0].split(':')[1].to_i
      line_exectued = File.readlines( __FILE__)[line_number-1]
      line_exectued.match(/(\S+).get_name/)[1]
    end
end

inconceivable = true

p inconceivable.get_name