Sha256: ebf296bae57b0aaffbd96d6748c3604ac744adbbbef8b2c6a9d4e682c182cd18
Contents?: true
Size: 952 Bytes
Versions: 6
Compression:
Stored size: 952 Bytes
Contents
require 'core_ext/module/anonymous'
require 'core_ext/module/reachable'
class Class
begin
ObjectSpace.each_object(Class.new) {}
def descendants # :nodoc:
descendants = []
ObjectSpace.each_object(singleton_class) do |k|
descendants.unshift k unless k == self
end
descendants
end
rescue StandardError # JRuby
def descendants # :nodoc:
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 # => [Fixnum, Bignum]
#
# class Foo; end
# class Bar < Foo; end
# class Baz < Bar; end
#
# Foo.subclasses # => [Bar]
def subclasses
subclasses, chain = [], descendants
chain.each do |k|
subclasses << k unless chain.any? { |c| c > k }
end
subclasses
end
end
Version data entries
6 entries across 6 versions & 1 rubygems