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D-system/list_exceptions.rb

Created January 31, 2019 02:10
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[Ruby exceptions list] List all exceptions available (including the main namespace)
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list_exceptions.rb
exceptions = []
ObjectSpace.each_object(Class) do |k|
exceptions << k if k.ancestors.include?(Exception)
end
puts exceptions.sort { |a,b| a.to_s <=> b.to_s }.join("\n")
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