# File lib/extlib/module.rb, line 6 def find_const(const_name) if const_name[0..1] == '::' Object.full_const_get(const_name[2..-1]) else nested_const_lookup(const_name) end end
# File lib/extlib/module.rb, line 14 def try_dup self end
Doesn't do any caching since constants can change with remove_const
# File lib/extlib/module.rb, line 21 def nested_const_lookup(const_name) unless equal?(Object) constants = [] name.split('::').each do |part| const = constants.last || Object constants << const.const_get(part) end parts = const_name.split('::') # from most to least specific constant, use each as a base and try # to find a constant with the name const_name within them constants.reverse_each do |const| # return the nested constant if available return const if parts.all? do |part| const = if RUBY_VERSION >= '1.9.0' const.const_defined?(part, false) ? const.const_get(part, false) : nil else const.const_defined?(part) ? const.const_get(part) : nil end end end end # no relative constant found, fallback to an absolute lookup and # use const_missing if not found Object.full_const_get(const_name) end