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leejarvis/gist:ebc00248f7c5b998b3bf Secret

Created January 20, 2012 01:43
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gistfile1.rb
#!/usr/bin/env ruby
class Foo
def hello
puts "Original hello!"
end
end
foo = Foo.new
foo.class.send(:alias_method, :orig_hello, :hello)
foo.class.send(:define_method, :hello) { puts 'New Hello!'; orig_hello }
foo.hello
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