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require 'active_support/core_ext/hash/except'
require 'active_support/core_ext/class/attribute'
module FactoryGirl
# @api private
class Evaluator
class_attribute :attribute_lists
private_instance_methods.each do |method|
undef_method(method) unless method =~ /^__|initialize/
end
def initialize(build_strategy, overrides = {})
@build_strategy = build_strategy
@overrides = overrides
@cached_attributes = overrides
@instance = nil
@overrides.each do |name, value|
singleton_class.define_attribute(name) { value }
end
end
def association(factory_name, *traits_and_overrides)
overrides = traits_and_overrides.extract_options!
strategy_override = overrides.fetch(:strategy) { :create }
traits_and_overrides += [overrides.except(:strategy)]
runner = FactoryRunner.new(factory_name, strategy_override, traits_and_overrides)
@build_strategy.association(runner)
end
def instance=(object_instance)
@instance = object_instance
end
def method_missing(method_name, *args, &block)
if @instance.respond_to?(method_name)
@instance.send(method_name, *args, &block)
else
SyntaxRunner.new.send(method_name, *args, &block)
end
end
def respond_to_missing?(method_name, include_private = false)
@instance.respond_to?(method_name) || SyntaxRunner.new.respond_to?(method_name)
end
def __override_names__
@overrides.keys
end
def increment_sequence(sequence)
sequence.next(self)
end
def self.attribute_list
AttributeList.new.tap do |list|
attribute_lists.each do |attribute_list|
list.apply_attributes attribute_list.to_a
end
end
end
def self.define_attribute(name, &block)
if method_defined?(name) || private_method_defined?(name)
undef_method(name)
end
define_method(name) do
if @cached_attributes.key?(name)
@cached_attributes[name]
else
@cached_attributes[name] = instance_exec(&block)
end
end
end
end
end
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