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ifyouseewendy/subclasses_of.rb

Created October 8, 2014 14:19
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Get subclasses, using Iterator Pattern
Raw
subclasses_of.rb
def subclasses_of(superclass)
subclasses = []
ObjectSpace.each_object(Class) do |k|
next if !k.ancestors.include?(superclass) || superclass == k || k.to_s.include?('::') || subclasses.include?(k.to_s)
subclasses << k.to_s
end
subclasses
end
subclasses_of(Numeric)
# => ["Complex", "Rational", "Bignum", "Float", "Fixnum", "Integer"]
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