/usr/lib/ruby/vendor_ruby/specinfra/ext/class.rb is in ruby-specinfra 2.66.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | class Class
def subclasses
result = []
ObjectSpace.each_object(Class) do |k|
next unless k < self
next if k.respond_to?(:singleton_class?) && k.singleton_class?
result << k
end
result
end
end
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