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Contents
# frozen_string_literal: true
require "active_support/inflector/methods"
module ActiveSupport
# = Active Support \Autoload
#
# Autoload and eager load conveniences for your library.
#
# This module allows you to define autoloads based on
# \Rails conventions (i.e. no need to define the path
# it is automatically guessed based on the filename)
# and also define a set of constants that needs to be
# eager loaded:
#
# module MyLib
# extend ActiveSupport::Autoload
#
# autoload :Model
#
# eager_autoload do
# autoload :Cache
# end
# end
#
# Then your library can be eager loaded by simply calling:
#
# MyLib.eager_load!
module Autoload
def self.extended(base) # :nodoc:
if RUBY_VERSION < "3"
base.class_eval do
@_autoloads = nil
@_under_path = nil
@_at_path = nil
@_eager_autoload = false
@_eagerloaded_constants = nil
end
end
end
def autoload(const_name, path = @_at_path)
unless path
full = [name, @_under_path, const_name.to_s].compact.join("::")
path = Inflector.underscore(full)
end
if @_eager_autoload
@_eagerloaded_constants ||= []
@_eagerloaded_constants << const_name
end
super const_name, path
end
def autoload_under(path)
@_under_path, old_path = path, @_under_path
yield
ensure
@_under_path = old_path
end
def autoload_at(path)
@_at_path, old_path = path, @_at_path
yield
ensure
@_at_path = old_path
end
def eager_autoload
old_eager, @_eager_autoload = @_eager_autoload, true
yield
ensure
@_eager_autoload = old_eager
end
def eager_load!
if @_eagerloaded_constants
@_eagerloaded_constants.each { |const_name| const_get(const_name) }
@_eagerloaded_constants = nil
end
end
end
end
Version data entries
20 entries across 20 versions & 6 rubygems