method

subclasses_of

v2.3.8 - Show latest stable - Class: Object

subclasses_of(*superclasses)

public

Exclude this class unless it’s a subclass of our supers and is defined. We check defined? in case we find a removed class that has yet to be garbage collected. This also fails for anonymous classes — please submit a patch if you have a workaround.

# File activesupport/lib/active_support/core_ext/object/extending.rb, line 13
    def subclasses_of(*superclasses) #:nodoc:
      subclasses = []

      superclasses.each do |sup|
        ObjectSpace.each_object(class << sup; self; end) do |k|
          if k != sup && (k.name.blank? || eval("defined?(::#{k}) && ::#{k}.object_id == k.object_id"))
            subclasses << k
          end
        end
      end

      subclasses
    end

subclasses_of

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