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Contents
module Pancake
module Mixins
module StackHelper
def self.included(base)
base.class_inheritable_accessor :_stack_class
base.extend ClassMethods
base.class_eval do
include ::Pancake::Mixins::StackHelper::InstanceMethods
end
base.stack_class
end
module ClassMethods
def stack_class
return @_stack_class if @_stack_class
klass = nil
if name =~ /^\#<Class/
raise "Could not determine the stack. Make sure you declare global classes with a preceeding ::"
end
ns = name.split("::")
until ns.empty? || klass
r = Object.full_const_get(ns.join("::"))
if r.ancestors.include?(::Pancake::Stack)
klass = r
else
ns.pop
end
end
if klass.nil?
raise "#{name} is not from a stack" unless _stack_class
else
self._stack_class = r
end
_stack_class
end
end
module InstanceMethods
def stack_class
self.class.stack_class
end
end
end # StackHelper
end # Mixins
end # Pancake
Version data entries
17 entries across 17 versions & 1 rubygems