Class: SimpleOperation

Inherits:
Object
  • Object
show all
Defined in:
lib/simple_operation.rb,
lib/simple_operation/failure.rb,
lib/simple_operation/success.rb,
lib/simple_operation/version.rb,
lib/simple_operation/wrapped_value.rb

Defined Under Namespace

Modules: Failure, Success Classes: WrappedValue

Constant Summary collapse

VERSION = 
"1.1.0"

Class Method Summary collapse

Class Method Details

.new(*args, &block) ⇒ Object 



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# File 'lib/simple_operation.rb', line 7

def self.new(*args, &block)
  args_list_with_nils = args.empty? ? '' : "#{args.join('=nil,')}=nil"
  Class.new do
    class_eval(&block) if block_given?

    class_eval "      def self.call \#{args_list_with_nils}\n        new(\#{args.join(',')}).call\n      end\n\n      def initialize \#{args_list_with_nils}\n        \#{args.map { |arg| \"@\#{arg}= \#{arg}\" }.join(';') }\n      end\n    code\n\n    def perform\n      call\n    end\n\n    private\n      attr_reader(*args)\n\n      def self.result(*args)\n        @result_class = Struct.new(*args)\n      end\n\n      def self.success(*args)\n        @success_class = Success.generate(*args)\n      end\n\n      def self.failure(*args)\n        @failure_class = Failure.generate(*args)\n      end\n\n      def result(*args)\n        self.class.instance_variable_get(:@result_class).new(*args)\n      end\n\n      def success(*args)\n        self.class.instance_variable_get(:@success_class).new(*args)\n      end\n\n      def failure(*args)\n        self.class.instance_variable_get(:@failure_class).new(*args)\n      end\n\n      alias_method :Result, :result\n      alias_method :Success, :success\n      alias_method :Failure, :failure\n  end\nend\n"