class Module

Copyright © 2005-2009 David Heinemeier Hansson

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Attributes

_dependencies[RW]
_setup_block[RW]

Public Instance Methods

depends_on(mod) click to toggle source
# File lib/carrierwave/core_ext/module_setup.rb, line 45
def depends_on(mod)
  return if self < mod
  @_dependencies ||= []
  @_dependencies << mod
end
setup(&blk) click to toggle source
# File lib/carrierwave/core_ext/module_setup.rb, line 29
def setup(&blk)
  @_setup_block = blk
end
use(mod) click to toggle source
# File lib/carrierwave/core_ext/module_setup.rb, line 33
def use(mod)
  return if self < mod
  
  (mod._dependencies || []).each do |dep|
    use dep
  end
  # raise "Circular dependencies" if self < mod
  include mod
  extend mod.const_get("ClassMethods") if mod.const_defined?("ClassMethods")
  class_eval(&mod._setup_block) if mod._setup_block
end