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module ActiveSupport
module DependencyModule
def setup(&blk)
@_setup_block = blk
end
def append_features(base)
return if base < self
(@_dependencies ||= []).each { |dep| base.send(:include, dep) }
super
end
def included(base)
base.extend const_get("ClassMethods") if const_defined?("ClassMethods")
base.class_eval(&@_setup_block) if instance_variable_defined?("@_setup_block")
end
def depends_on(mod)
return if self < mod
@_dependencies ||= []
@_dependencies << mod
end
end
end
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