30 lines
685 B
Ruby
30 lines
685 B
Ruby
class Module
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# Returns the classes in the current ObjectSpace where this module has been
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# mixed in according to Module#included_modules.
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#
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# module M
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# end
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#
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# module N
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# include M
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# end
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#
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# class C
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# include M
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# end
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#
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# class D < C
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# end
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#
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# p M.included_in_classes # => [C, D]
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#
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def included_in_classes
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classes = []
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ObjectSpace.each_object(Class) { |k| classes << k if k.included_modules.include?(self) }
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classes.reverse.inject([]) do |unique_classes, klass|
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unique_classes << klass unless unique_classes.collect { |k| k.to_s }.include?(klass.to_s)
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unique_classes
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end
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end
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end |