#--
# Copyright (c) 2006-2013 Philip Ross
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#++

module TZInfo
  # Represents a timezone that is defined as a link or alias to another zone.
  class LinkedTimezoneInfo < TimezoneInfo
        
    # The zone that provides the data (that this zone is an alias for).
    attr_reader :link_to_identifier
    
    # Constructs a new LinkedTimezoneInfo with an identifier and the identifier
    # of the zone linked to.
    def initialize(identifier, link_to_identifier)
      super(identifier)
      @link_to_identifier = link_to_identifier      
    end
    
    # Returns internal object state as a programmer-readable string.
    def inspect
      "#<#{self.class}: #@identifier,#@link_to_identifier>"
    end
    
    # Constructs a Timezone instance for the timezone represented by this
    # DataTimezoneInfo.
    def create_timezone
      LinkedTimezone.new(self)
    end
  end
end
