# Copyright (c) 2008 Simon Menke
# 
# 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.

# An object on this class is passed to the filter blocks
class Message::Recorder::MessageCall
  # the receiver of the message
  attr_reader :subject
  # the message sed to the subject when execute is called.
  attr_reader :message
  # the return value of the message call.
  attr_reader :return_value
  
  # initialize a message call
  def initialize(subject, message, return_value=nil)
    @subject      = subject
    @message      = message
    @return_value = return_value
  end
  
  # send <tt>message</tt> to <tt>subject</tt>.
  def execute
    @return_value = @subject.__send__(@message.method_name, *@message.arguments, &@message.block)
  end
  
end