Module: Zoidberg::Shell

Defined in:
lib/zoidberg/shell.rb

Overview

Provides a wrapping around a real instance. Including this module within a class will enable magic.

Defined Under Namespace

Modules: ClassMethods, InstanceMethods

Class Method Summary collapse

Class Method Details

.included(klass) ⇒ Object

Inject Shell magic into given class when included

Parameters:

  • klass (Class) 


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# File 'lib/zoidberg/shell.rb', line 399

def self.included(klass)
  unless(klass.ancestors.include?(Zoidberg::Shell::InstanceMethods))
    klass.class_eval do

      class << self
        alias_method :unshelled_new, :new

        # Set an option or multiple options
        #
        # @return [Array<Symbol>]
        def option(*args)
          @option ||= []
          unless(args.empty?)
            @option += args
            @option.map!(&:to_sym).uniq!
          end
          @option
        end

        # Check if option is available
        #
        # @param arg [Symbol]
        # @return [TrueClass, FalseClass]
        def option?(arg)
          option.include?(arg.to_sym)
        end

      end

      include InstanceMethods
      extend ClassMethods
      include Bogo::Memoization
    end
  end
  unless(klass.include?(SoftShell) || klass.include?(HardShell))
    klass.class_eval do
      include Zoidberg.default_shell
    end
  end
end