/usr/lib/ruby/vendor_ruby/active_support/core_ext/module/introspection.rb is in ruby-activesupport-3.2 3.2.16-2.
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 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | require 'active_support/inflector'
class Module
# Returns the name of the module containing this one.
#
# M::N.parent_name # => "M"
def parent_name
unless defined? @parent_name
@parent_name = name =~ /::[^:]+\Z/ ? $`.freeze : nil
end
@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.parent # => M
# X.parent # => M
#
# The parent of top-level and anonymous modules is Object.
#
# M.parent # => Object
# Module.new.parent # => Object
#
def parent
parent_name ? ActiveSupport::Inflector.constantize(parent_name) : Object
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.parents # => [Object]
# M::N.parents # => [M, Object]
# X.parents # => [M, Object]
#
def parents
parents = []
if parent_name
parts = parent_name.split('::')
until parts.empty?
parents << ActiveSupport::Inflector.constantize(parts * '::')
parts.pop
end
end
parents << Object unless parents.include? Object
parents
end
if RUBY_VERSION < '1.9'
# Returns the constants that have been defined locally by this object and
# not in an ancestor. This method is exact if running under Ruby 1.9. In
# previous versions it may miss some constants if their definition in some
# ancestor is identical to their definition in the receiver.
def local_constants
inherited = {}
ancestors.each do |anc|
next if anc == self
anc.constants.each { |const| inherited[const] = anc.const_get(const) }
end
constants.select do |const|
!inherited.key?(const) || inherited[const].object_id != const_get(const).object_id
end
end
else
def local_constants #:nodoc:
constants(false)
end
end
# Returns the names of the constants defined locally rather than the
# constants themselves. See <tt>local_constants</tt>.
def local_constant_names
local_constants.map { |c| c.to_s }
end
end
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