This (#doesNotUnderstand:) is not very widely known but extremely important: http://carcaddar.blogspot.com/2009/04/closure-oriented-metaprogramming-via.html?sh

This (#doesNotUnderstand:) is not very widely known but extremely important: http://carcaddar.blogspot.com/2009/04/closure-oriented-metaprogramming-via.html?showComment=1239507240000#c7399536579144180363 http://carcaddar.blogspot.com/2009/04/closure-oriented-metap... http://people.csail.mit.edu/gregs/ll1-discuss-archive-html/msg02096.html http://people.csail.mit.edu/gregs/ll1-discuss-archive-html/m...