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# frozen_string_literal: true
require "active_support/inflector"
class Module
# Returns the name of the module containing this one.
#
# M::N.module_parent_name # => "M"
def module_parent_name
if defined?(@parent_name)
@parent_name
else
parent_name = name =~ /::[^:]+\Z/ ? $`.freeze : nil
@parent_name = parent_name unless frozen?
parent_name
end
end
def parent_name
ActiveSupport::Deprecation.warn(<<-MSG.squish)
`Module#parent_name` has been renamed to `module_parent_name`.
`parent_name` is deprecated and will be removed in Rails 6.1.
MSG
module_parent_name
end
# Returns the module which contains this one according to its name.
#
# module M
# module N
# end
# end
# X = M::N
#
# M::N.module_parent # => M
# X.module_parent # => M
#
# The parent of top-level and anonymous modules is Object.
#
# M.module_parent # => Object
# Module.new.module_parent # => Object
def module_parent
module_parent_name ? ActiveSupport::Inflector.constantize(module_parent_name) : Object
end
def parent
ActiveSupport::Deprecation.warn(<<-MSG.squish)
`Module#parent` has been renamed to `module_parent`.
`parent` is deprecated and will be removed in Rails 6.1.
MSG
module_parent
end
# Returns all the parents of this module according to its name, ordered from
# nested outwards. The receiver is not contained within the result.
#
# module M
# module N
# end
# end
# X = M::N
#
# M.module_parents # => [Object]
# M::N.module_parents # => [M, Object]
# X.module_parents # => [M, Object]
def module_parents
parents = []
if module_parent_name
parts = module_parent_name.split("::")
until parts.empty?
parents << ActiveSupport::Inflector.constantize(parts * "::")
parts.pop
end
end
parents << Object unless parents.include? Object
parents
end
def parents
ActiveSupport::Deprecation.warn(<<-MSG.squish)
`Module#parents` has been renamed to `module_parents`.
`parents` is deprecated and will be removed in Rails 6.1.
MSG
module_parents
end
end
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