From: "Mehr, Assaph (Assaph)" <assaph@...>
Date: 2004-08-30T17:19:20+09:00
Subject: Re: nuby question: question marks in method names


> in the course of looking for answers, seems like ? is part of the
> method, ie, 'something?'
> and this is the preferred way saying that something is returning a
> boolean value.

Correct. You can also specify ! as part of the method name, and also =,
but this is a bit special.


> 1) is there any way to do this automatically?

Not at the moment, but it's easy to implement on your own:

class Module
  def attr_bool sym
    attr_reader "#{sym}?"
    attr_writer sym
  end
end

class MyClass
  attr_bool :foo
end

p MyClass.instance_methods - Class.methods