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Contents
require 'degu/renum/enumerated_value'
module Degu
module Renum
module EnumeratedValueTypeFactory
class << self
def create nest, type_name, values, &block
klass = create_class nest, type_name
create_values klass, values, &block
end
def create_class nest, type_name
klass = Class.new EnumeratedValue
nest.const_set(type_name, klass)
klass
end
def create_values klass, values, &block
setup_for_definition_in_block(klass) if values == :defined_in_block
klass.class_eval &block if block_given?
if values == :defined_in_block
begin
klass.block_defined_values.each do |value_name, init_args, instance_block|
value = klass.new(value_name)
klass.const_set(value_name, value)
value.instance_eval &instance_block if instance_block
value.init *init_args if value.respond_to? :init
end
ensure
teardown_from_definition_in_block(klass)
end
else
values.each do |name|
klass.const_set(name, klass.new(name))
end
end
klass.values.freeze
end
def setup_for_definition_in_block klass
klass.class_eval do
def self.block_defined_values
@block_defined_values ||= []
end
def self.method_missing value_name, *init_args, &instance_block
block_defined_values << [value_name, init_args, instance_block]
end
end
end
def teardown_from_definition_in_block klass
class << klass
remove_method :block_defined_values
remove_method :method_missing
end
end
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems