error_handler.h

///\file

/******************************************************************************
The MIT License(MIT)

Embedded Template Library.
https://github.com/ETLCPP/etl

Copyright(c) 2014 jwellbelove

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of this software and associated documentation files(the "Software"), to deal
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******************************************************************************/

#ifndef __ETL_ERROR_HANDLER__
#define __ETL_ERROR_HANDLER__

///\defgroup error_handler error_handler
/// Error handler for when throwing exceptions is not required.
///\ingroup utilities

#include "exception.h"
#include "function.h"

namespace etl
{
  //***************************************************************************
  /// Error handler for when throwing exceptions is not required.
  ///\ingroup error_handler
  //***************************************************************************
  class error_handler
  {
  public:

    //*************************************************************************
    /// Callback class for free handler functions.
    //*************************************************************************
    struct free_function : public function<void, const exception&>
    {
      free_function(void (*p_function)(const exception&))
        : function<void, const exception&>(p_function)
      {
      }
    };

    //*************************************************************************
    /// Callback class for member handler functions.
    //*************************************************************************
    template <typename TObject>
    struct member_function : public function<TObject, const exception&>
    {
      member_function(TObject& object, void(TObject::*p_function)(const exception&))
        : function<TObject, const exception&>(object, p_function)
      {
      }
    };

    static void set_callback(ifunction<const exception&>& f);
    static void error(const exception& e);

  private:

    static ifunction<const exception&>* p_ifunction;
  };
}

#endif