ircproxy  The Ultimate Cyborg

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Expression.cc

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// ircproxy -- An IRC bouncer.
//
//! @file Expression.cc
//! @brief This file contains the implementation of Expression related code.
//
// Copyright (C) 2006, 2007 by
//
// Carlo Wood, Run on IRC <carlo@alinoe.com>
// RSA-1024 0x624ACAD5 1997-01-26                    Sign & Encrypt
// Fingerprint16 = 32 EC A7 B6 AC DB 65 A6  F6 F6 55 DD 1C DC FF 61
//
// This file may be distributed under the terms of the Q Public License
// version 1.0 as appearing in the file LICENSE.QPL included in the
// packaging of this file.

#ifndef USE_PCH
#include "sys.h"
#ifdef CWDEBUG
#include <libcwd/cwprint.h>
#endif
#endif

#include "Expression.h"

ExpressionEventServer::ExpressionEventServer(boost::shared_ptr<ExpressionInterface> const& expression) :
    M_expression(expression), M_ok(true), M_evaluation(expression->evaluate())
{
  Dout(dc::objects, "Constructing ExpressionEventServer(\"" <<
      cwprint(*expression) << "\") with evaluation " << M_evaluation);
}

void ExpressionEventServer::bool_changed(void)
{
  if (!M_ok)
    return;
  bool evaluation = M_expression->evaluate();
  if (M_evaluation != evaluation)
  {
    M_evaluation = evaluation;
    trigger(ExpressionEventType(evaluation, M_expression));
  }
}

void ExpressionEventServer::all_requests_destroyed(void)
{
  M_expression->sub_event_server(this);
}

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