dbg.rb

dbg.rb

require "binding_of_caller"

class BasicObject
  def dbg(variable_name=nil)
    puts ">" * 80
    other_binding = binding.of_caller(1)

    vars =
      other_binding.eval("local_variables") +
      other_binding.eval("instance_variables")

    variable_name ||= vars.
      reject{|v| v == :_}.
      detect { |v| other_binding.eval(v.to_s) == self }

    if variable_name
      puts "#{variable_name}: #{self.inspect}"
    else
      puts self.inspect
    end

    puts "<" * 80
    
    self
  end
end