macrodefs.h 3.08 KB
/* ****************************************************************************
 * Copyright 2019 Open Systems Development BV                                 *
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   *
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#ifndef OSDEV_COMPONENTS_MQTT_MACRODEFS_H
#define OSDEV_COMPONENTS_MQTT_MACRODEFS_H

#include <type_traits>

#include "compiletimestring.h"

/// @brief Helper macro to stringify a symbol
#define OSDEV_COMPONENTS_STRINGIFY(x) #x

/// @brief Use this macro to safely stringify a symbol
/// This will also work for nested macro's
#define OSDEV_COMPONENTS_TOSTRING(x) OSDEV_COMPONENTS_STRINGIFY(x)

/// @brief Helper macro to combine two symbols
#define OSDEV_COMPONENTS_COMBINER(x, y) x##y

/// @brief Use this macro to safely combine two symbols
/// This will also work for nested macro's
#define OSDEV_COMPONENTS_COMBINE(x, y) OSDEV_COMPONENTS_COMBINER(x, y)

/// @brief Macro that reduces a path to the basename
#define OSDEV_COMPONENTS_MANAGEDBASEFILENAME \
    OSDEV_COMPONENTS_CSTRING_BOUNDED(__FILE__, osdev::components::rfind(__FILE__, '/') + 1, sizeof(__FILE__) - 1)

/// @brief Compiletime test if an instance derives from a certain base class
#define OSDEV_COMPONENTS_DERIVESFROM(derived, baseType)                                                                       \
    static_assert(std::is_base_of<baseType,                                                                                \
                      typename std::remove_pointer<typename std::remove_reference<decltype(derived)>::type>::type>::value, \
        OSDEV_COMPONENTS_TOSTRING(derived) " must be derived from " OSDEV_COMPONENTS_TOSTRING(baseType))

#endif  //OSDEV_COMPONENTS_MQTT_MACRODEFS_H