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stevegraham/gist:345141

Created March 26, 2010 17:22
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gistfile1.rb
[NilClass, FalseClass, TrueClass, Symbol, Numeric, Class, Module].each { |klass| klass.class_eval { def duplicable?() false end } }
# Or even…
[NilClass, FalseClass, TrueClass, Symbol, Numeric, Class, Module].each do |klass|
klass.class_eval { def duplicable?() false end }
end
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