method

subclasses_of

v2.2.1 - Show latest stable - 0 notes - Class: Object

1.0.0
1.1.0
1.1.1
1.1.6
1.2.0
1.2.6
2.0.0
2.0.1
2.0.3
2.1.0 (0)
2.2.1 (38)
2.3.2 (-20)
2.3.8 (20)
3.0.0
3.0.5
3.0.7
3.0.9
3.1.0
3.2.1
3.2.3
3.2.8
3.2.13
What's this?

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.

Show source

# 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

Related methods

Flowdock - Team Inbox With Chat