method

descendants

v6.0.0 - Show latest stable - 0 notes - Class: Class

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What's this?

descendants() public

Returns an array with all classes that are < than its receiver.

class C; end
C.descendants # => []

class B < C; end
C.descendants # => [B]

class A < B; end
C.descendants # => [B, A]

class D < C; end
C.descendants # => [B, A, D]

Show source

# File activesupport/lib/active_support/core_ext/class/subclasses.rb, line 21
    def descendants
      descendants = []
      ObjectSpace.each_object(singleton_class) do |k|
        next if k.singleton_class?
        descendants.unshift k unless k == self
      end
      descendants
    end

descendants

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