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Contents
# Stolen from Rails 3
# Copyright (c) 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.
class Module
attr_accessor :_setup_block
attr_accessor :_dependencies
def setup(&blk)
@_setup_block = blk
end
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
def depends_on(mod)
return if self < mod
@_dependencies ||= []
@_dependencies << mod
end
end
Version data entries
8 entries across 8 versions & 2 rubygems