From: Alexey Muranov <lists@...>
Date: 2012-10-28T17:16:33+09:00
Subject: When to use Ruby DelegateClass instead of SimpleDelegator?

I am mostly re-posting my question from SO, because i think it can get
lost there, and i hope that on this specialized forum i would get some
explanation.

http://stackoverflow.com/questions/13104942

So, i do not understand how and when to use Ruby's `DelegateClass`
method instead of `SimpleDelegator` class.  All of the following seem to
work mostly identically:

    a = SimpleDelegator.new([0])
    b = DelegateClass(Array).new([0])
    c = DelegateClass(String).new([0])
    a << 1
    b << 2
    c << 3
    p a # => [0, 1]
    p b # => [0, 2]
    p c # => [0, 3]

It does not seem to matter which class is passed to DelegateClass.

Alexey.

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