269 lines
8.8 KiB
C++
269 lines
8.8 KiB
C++
/******************************************************************************
|
|
The MIT License(MIT)
|
|
|
|
Embedded Template Library.
|
|
https://github.com/ETLCPP/etl
|
|
https://www.etlcpp.com
|
|
|
|
Copyright(c) 2017 John Wellbelove
|
|
|
|
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.
|
|
******************************************************************************/
|
|
|
|
#ifndef ETL_MESSAGE_INCLUDED
|
|
#define ETL_MESSAGE_INCLUDED
|
|
|
|
#include "platform.h"
|
|
#include "error_handler.h"
|
|
#include "exception.h"
|
|
#include "message_types.h"
|
|
#include "type_traits.h"
|
|
#include "static_assert.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
namespace etl
|
|
{
|
|
//***************************************************************************
|
|
class message_exception : public etl::exception
|
|
{
|
|
public:
|
|
|
|
message_exception(string_type reason_, string_type file_name_, numeric_type line_number_)
|
|
: exception(reason_, file_name_, line_number_)
|
|
{
|
|
}
|
|
};
|
|
|
|
//***************************************************************************
|
|
class unhandled_message_exception : public etl::message_exception
|
|
{
|
|
public:
|
|
|
|
unhandled_message_exception(string_type file_name_, numeric_type line_number_)
|
|
: message_exception(ETL_ERROR_TEXT("message:unknown", ETL_MESSAGE_FILE_ID"A"), file_name_, line_number_)
|
|
{
|
|
}
|
|
};
|
|
|
|
class message_tag {};
|
|
|
|
#if ETL_HAS_VIRTUAL_MESSAGES
|
|
//***************************************************************************
|
|
/// Message interface.
|
|
/// Virtual.
|
|
//***************************************************************************
|
|
class imessage
|
|
{
|
|
public:
|
|
|
|
//***********************************
|
|
virtual ~imessage() ETL_NOEXCEPT
|
|
{
|
|
}
|
|
|
|
//***********************************
|
|
ETL_NODISCARD virtual etl::message_id_t get_message_id() const ETL_NOEXCEPT = 0;
|
|
};
|
|
|
|
//***************************************************************************
|
|
/// Message type.
|
|
/// Virtual.
|
|
//***************************************************************************
|
|
template <etl::message_id_t ID_, typename TBase = etl::imessage>
|
|
class message : public TBase, public etl::message_tag
|
|
{
|
|
public:
|
|
|
|
ETL_STATIC_ASSERT((etl::is_base_of<etl::imessage, TBase>::value), "TBase is not derived from etl::imessage");
|
|
|
|
typedef TBase base_type;
|
|
|
|
//***********************************
|
|
ETL_NODISCARD virtual etl::message_id_t get_message_id() const ETL_NOEXCEPT ETL_OVERRIDE
|
|
{
|
|
return ID;
|
|
}
|
|
|
|
//***********************************
|
|
static ETL_CONSTANT etl::message_id_t ID = ID_;
|
|
};
|
|
|
|
#else
|
|
|
|
//***************************************************************************
|
|
/// Message interface.
|
|
/// Non-virtual.
|
|
//***************************************************************************
|
|
class imessage
|
|
{
|
|
public:
|
|
|
|
//***********************************
|
|
ETL_NODISCARD etl::message_id_t get_message_id() const ETL_NOEXCEPT
|
|
{
|
|
return id;
|
|
}
|
|
|
|
protected:
|
|
|
|
//***********************************
|
|
imessage(etl::message_id_t id_) ETL_NOEXCEPT
|
|
: id(id_)
|
|
{
|
|
}
|
|
|
|
//***********************************
|
|
imessage(const imessage& other) ETL_NOEXCEPT
|
|
: id(other.id)
|
|
{
|
|
}
|
|
|
|
//***********************************
|
|
imessage& operator =(const imessage& rhs) ETL_NOEXCEPT
|
|
{
|
|
id = rhs.id;
|
|
return *this;
|
|
}
|
|
|
|
//***********************************
|
|
etl::message_id_t id;
|
|
|
|
private:
|
|
|
|
imessage() ETL_DELETE;
|
|
};
|
|
|
|
//***************************************************************************
|
|
/// Message type.
|
|
/// Non-virtual.
|
|
//***************************************************************************
|
|
template <etl::message_id_t ID_, typename TBase = etl::imessage>
|
|
class message : public TBase, public etl::message_tag
|
|
{
|
|
public:
|
|
|
|
ETL_STATIC_ASSERT((etl::is_base_of<etl::imessage, TBase>::value), "TBase is not derived from etl::imessage");
|
|
|
|
typedef TBase base_type;
|
|
|
|
//***********************************
|
|
message() ETL_NOEXCEPT
|
|
: TBase(ID)
|
|
{
|
|
}
|
|
|
|
//***********************************
|
|
message(const message&) ETL_NOEXCEPT
|
|
: TBase(ID)
|
|
{
|
|
}
|
|
|
|
//***********************************
|
|
message& operator =(const message&) ETL_NOEXCEPT
|
|
{
|
|
return *this;
|
|
}
|
|
|
|
//***********************************
|
|
static ETL_CONSTANT etl::message_id_t ID = ID_;
|
|
};
|
|
#endif
|
|
|
|
//***************************************************************************
|
|
/// The message's static ID.
|
|
//***************************************************************************
|
|
template <etl::message_id_t ID_, typename TBase>
|
|
ETL_CONSTANT etl::message_id_t etl::message<ID_, TBase>::ID;
|
|
|
|
//***************************************************************************
|
|
/// Is T an etl::imessage?
|
|
//***************************************************************************
|
|
template <typename T>
|
|
struct is_imessage : public etl::bool_constant<etl::is_same<etl::imessage, typename etl::remove_cvref<T>::type>::value>
|
|
{
|
|
};
|
|
|
|
//***************************************************************************
|
|
/// Is T ultimately derived from etl::imessage?
|
|
//***************************************************************************
|
|
template <typename T>
|
|
struct is_message : public etl::bool_constant<etl::is_base_of<etl::imessage, typename etl::remove_cvref<T>::type>::value>
|
|
{
|
|
};
|
|
|
|
//***************************************************************************
|
|
/// Is T an etl::message<> or derived from etl::message<>
|
|
//***************************************************************************
|
|
template <typename T>
|
|
struct is_message_type : public etl::bool_constant<etl::is_base_of<etl::message_tag, typename etl::remove_cvref<T>::type>::value>
|
|
{
|
|
};
|
|
|
|
//***************************************************************************
|
|
/// Is T a base of etl::message<T>
|
|
//***************************************************************************
|
|
template <typename T>
|
|
struct is_message_base : public etl::bool_constant<etl::is_message<T>::value && !etl::is_message_type<T>::value>
|
|
{
|
|
};
|
|
|
|
//***************************************************************************
|
|
/// Is T a user defined base of etl::message<T> and not an etl::imessage
|
|
//***************************************************************************
|
|
template <typename T>
|
|
struct is_user_message_base : public etl::bool_constant<etl::is_message_base<T>::value && !etl::is_imessage<T>::value>
|
|
{
|
|
};
|
|
|
|
#if ETL_USING_CPP17
|
|
//***************************************************************************
|
|
/// Is T an etl::imessage?
|
|
//***************************************************************************
|
|
template <typename T>
|
|
inline constexpr bool is_imessage_v = is_imessage<T>::value;
|
|
|
|
//***************************************************************************
|
|
/// Is T ultimately derived from etl::imessage?
|
|
//***************************************************************************
|
|
template <typename T>
|
|
inline constexpr bool is_message_v = is_message<T>::value;
|
|
|
|
//***************************************************************************
|
|
/// Is T derived from etl::message<>
|
|
//***************************************************************************
|
|
template <typename T>
|
|
inline constexpr bool is_message_type_v = is_message_type<T>::value;
|
|
|
|
//***************************************************************************
|
|
/// Is T a base of etl::message<T>
|
|
//***************************************************************************
|
|
template <typename T>
|
|
inline constexpr bool is_message_base_v = is_message_base<T>::value;
|
|
|
|
//***************************************************************************
|
|
/// Is T a user defined base of etl::message<T>
|
|
//***************************************************************************
|
|
template <typename T>
|
|
inline constexpr bool is_user_message_base_v = is_user_message_base<T>::value;
|
|
#endif
|
|
}
|
|
|
|
#endif
|