cgiacomi/r2do

#
#  Copyright 2012 Christian Giacomi http://www.christiangiacomi.com
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#

module R2do

  class Option < Command


    # Creates an instance of a Command
    #
    # @param [String] short the short option name for this command
    # @param [String] extended the full option name for this command
    # @param [String] argument the optional argument for commands that have arguments
    # @param [String] description the command's description
    # @param [callback] callback the callback method for this command
    def initialize(short, extended, description, callback)
      super(short, extended, argument, description)

      if callback.nil?
        raise ArgumentError
      end

      @callback = callback
    end

    # Executes the callback of this command
    #
    # @param [Array] args the collection of arguments
    # @return [void]
    def execute(args)
      @callback.call(args)
    end

  end

end