Sha256: 15bdc04367857a4e8035963de28e8255a529086a6cc59a0bb1d95d0729bb8fc5
Contents?: true
Size: 1.18 KB
Versions: 42
Compression:
Stored size: 1.18 KB
Contents
require 'active_support/core_ext/module/anonymous'
require 'active_support/core_ext/module/reachable'
class Class #:nodoc:
# Rubinius
if defined?(Class.__subclasses__)
alias :subclasses :__subclasses__
def descendants
descendants = []
__subclasses__.each do |k|
descendants << k
descendants.concat k.descendants
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
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
end
end
end
Version data entries
42 entries across 42 versions & 3 rubygems