Way to read methods instead of instance variables

[evanthegrayt]

Instead of directly reading an ivar, maybe users would want to read directly from a method.

Just spitballing without thinking through fully... but something like this?

class Person
  extend Attribool

  bool_reader :full_name, from_method: true

  def initialize(first_name, last_name)
    @first_name = first_name
    @last_name = last_name
  end

  def full_name
    return unless @first_name && @last_name
    "#{@first_name} #{@last_name}"
  end
end

p = Person.new(nil, nil)
p.full_name?
# false