From: "Eustáquio Rangel" <lists@...>
Date: 2013-06-26T20:09:59+09:00
Subject: Using Ruby 2.0 TracePoint to simulate an abstract interface

Inspired on a Metacast (http://www.metacasts.tv/casts/tracepoint), I
made this code (https://gist.github.com/taq/5863818) to implement an
abstract interface in Ruby. As the screencast author says, it's just an
interesting exercise. :-)

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