Log.h

Go to the documentation of this file.

 
/*
Do not use the macros in this file,
as the handling of strings within mana has not been finalized.
*/
 
#pragma once
#include "common/Platform.h"
#include <string>
#include <string_view>
 
#if defined(UE_BUILD)
// Unreal Engine environment (applies to Shipping/Development/Debug)
#define MANA_CHAR        TCHAR
#define MANA_TEXT(text)  TEXT(text)
 
#elif defined(_WIN32) || defined(_WIN64)
// Non‑UE Windows environment
#define NOMINMAX
#include <stdio.h>
#include <tchar.h>
#define MANA_CHAR        TCHAR
#define MANA_TEXT(text)  _T(text)
 
#else
// Non‑UE, non‑Windows environment
#include <iostream>
#define MANA_CHAR        char
#define MANA_TEXT(text)  (text)
#endif
 
namespace mana
{
    [[nodiscard]] inline std::basic_string<MANA_CHAR> LogConcat(std::initializer_list<std::basic_string_view<MANA_CHAR>> r)
    {
        std::size_t n = 0;
        for (auto s : r)
            n += s.size();
        std::basic_string<MANA_CHAR> l;
        l.reserve(n);
        for (auto s : r)
            l.append(s);
        return l;
    }
}
 
#if defined(UE_BUILD)
    // Unreal Engine environment (applies to Shipping/Development/Debug)
    #define MANA_LOG_ERROR(...)   UE_LOG(LogTemp, Error, MANA_TEXT("%s\n"), mana::LogConcat({ __VA_ARGS__ }).c_str())
    #define MANA_LOG_WARNING(...) UE_LOG(LogTemp, Warning, MANA_TEXT("%s\n"), mana::LogConcat({ __VA_ARGS__ }).c_str())
    #define MANA_LOG_DISPLAY(...) UE_LOG(LogTemp, Display, MANA_TEXT("%s\n"), mana::LogConcat({ __VA_ARGS__ }).c_str())
    #define MANA_LOG_INFO(...)    UE_LOG(LogTemp, Log, MANA_TEXT("%s\n"), mana::LogConcat({ __VA_ARGS__ }).c_str())
 
#elif defined(_WIN32) || defined(_WIN64)
    // Non‑UE Windows environment
    #define MANA_LOG_ERROR(...)   _tprintf(MANA_TEXT("%s\n"), mana::LogConcat({ __VA_ARGS__ }))
    #define MANA_LOG_WARNING(...) _tprintf(MANA_TEXT("%s\n"), mana::LogConcat({ __VA_ARGS__ }))
    #define MANA_LOG_DISPLAY(...) _tprintf(MANA_TEXT("%s\n"), mana::LogConcat({ __VA_ARGS__ }))
    #define MANA_LOG_INFO(...)    _tprintf(MANA_TEXT("%s\n"), mana::LogConcat({ __VA_ARGS__ }))
 
#else
    // Non‑UE, non‑Windows environment
    #define MANA_LOG_ERROR(...)   (std::cout << mana::LogConcat({ __VA_ARGS__ }) << '\n')
    #define MANA_LOG_WARNING(...) (std::cout << mana::LogConcat({ __VA_ARGS__ }) << '\n')
    #define MANA_LOG_DISPLAY(...) (std::cout << mana::LogConcat({ __VA_ARGS__ }) << '\n')
    #define MANA_LOG_INFO(...)    (std::cout << mana::LogConcat({ __VA_ARGS__ }) << '\n')
#endif