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Class.__subclasses__ was removed from Rubinius #166

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54 activesupport/lib/active_support/core_ext/class/subclasses.rb
@@ -2,49 +2,35 @@
require 'active_support/core_ext/module/reachable'
class Class #:nodoc:
- # Rubinius
- if defined?(Class.__subclasses__)
- alias :subclasses :__subclasses__
+ begin
+ ObjectSpace.each_object(Class.new) {}
def descendants
descendants = []
- __subclasses__.each do |k|
- descendants << k
- descendants.concat k.descendants
+ ObjectSpace.each_object(class << self; self; end) do |k|
+ descendants.unshift k unless k == self
end
descendants
end
- else # MRI
- begin
- ObjectSpace.each_object(Class.new) {}
-
- def descendants
- descendants = []
- ObjectSpace.each_object(class << self; self; end) do |k|
- descendants.unshift k unless k == self
- end
- descendants
- end
- rescue StandardError # JRuby
- def descendants
- descendants = []
- ObjectSpace.each_object(Class) do |k|
- descendants.unshift k if k < self
- end
- descendants.uniq!
- descendants
+ rescue StandardError # JRuby
+ def descendants
+ descendants = []
+ ObjectSpace.each_object(Class) do |k|
+ descendants.unshift k if k < self
end
+ descendants.uniq!
+ descendants
end
+ end
- # Returns an array with the direct children of +self+.
- #
- # Integer.subclasses # => [Bignum, Fixnum]
- def subclasses
- subclasses, chain = [], descendants
- chain.each do |k|
- subclasses << k unless chain.any? { |c| c > k }
- end
- subclasses
+ # Returns an array with the direct children of +self+.
+ #
+ # Integer.subclasses # => [Bignum, Fixnum]
+ def subclasses
+ subclasses, chain = [], descendants
+ chain.each do |k|
+ subclasses << k unless chain.any? { |c| c > k }
end
+ subclasses
end
end
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