From 7ef1c76e4a388891749eece6279419f5eec942c7 Mon Sep 17 00:00:00 2001
From: Relintai <relintai@protonmail.com>
Date: Sun, 31 Oct 2021 23:34:08 +0100
Subject: [PATCH] Added error macros and a simple logger.

---
 core/error_macros.h | 76 +++++++++++++++++++++++++++++++++++++++++++++
 core/log/logger.cpp | 52 +++++++++++++++++++++++++++++++
 core/log/logger.h   | 26 ++++++++++++++++
 3 files changed, 154 insertions(+)
 create mode 100644 core/error_macros.h
 create mode 100644 core/log/logger.cpp
 create mode 100644 core/log/logger.h

diff --git a/core/error_macros.h b/core/error_macros.h
new file mode 100644
index 0000000..8c28b3d
--- /dev/null
+++ b/core/error_macros.h
@@ -0,0 +1,76 @@
+#ifndef ERROR_MACROS_H
+#define ERROR_MACROS_H
+
+#include "core/log/logger.h"
+
+// Based on Godot Engine's error_macros.h
+// MIT License
+// Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.
+// Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).
+
+
+#ifdef _MSC_VER
+#define GENERATE_TRAP                       \
+	__debugbreak();                         \
+	/* Avoid warning about control paths */ \
+	for (;;) {                              \
+	}
+#else
+#define GENERATE_TRAP __builtin_trap();
+#endif
+
+#define LOG_TRACE(str) \
+    Logger::log_trace(str);
+
+#define LOG_MSG(str) \
+    Logger::log_message(str);
+
+#define LOG_WARN(str) \
+    Logger::log_warning(str);
+
+#define LOG_ERR(str) \
+    Logger::log_error(str);
+
+#define ERR_FAIL_INDEX(index, size) \
+    if ((index < 0) || (index >= size)) {\
+        Logger::_log_index_error(__FUNCTION__, __FILE__, __LINE__, index, size, ""); \
+        return;\
+    } else\
+        ((void)0)\
+
+#define ERR_FAIL_INDEX_V(index, size, val) \
+    if ((index < 0) || (index >= size)) {\
+        Logger::_log_index_error(__FUNCTION__, __FILE__, __LINE__, index, size, ""); \
+        return val;\
+    } else\
+        ((void)0)\
+
+#define ERR_FAIL_COND(cond) \
+    if (cond) {\
+        Logger::_log_error(__FUNCTION__, __FILE__, __LINE__, "ERR_FAIL_COND: \"" #cond "\" is true!"); \
+        return;\
+    } else\
+        ((void)0)\
+
+#define ERR_FAIL_COND_V(cond, val) \
+    if (cond) {\
+        Logger::_log_error(__FUNCTION__, __FILE__, __LINE__, "ERR_FAIL_COND: \"" #cond "\" is true!"); \
+        return val;\
+    } else\
+        ((void)0)\
+
+#define CRASH_INDEX(index, size) \
+    if ((index < 0) || (index >= size)) {\
+        Logger::_log_index_error(__FUNCTION__, __FILE__, __LINE__, index, size, "CRASH!"); \
+        GENERATE_TRAP \
+    } else\
+        ((void)0)\
+
+#define CRASH_COND(cond) \
+    if (cond) {\
+        Logger::_log_error(__FUNCTION__, __FILE__, __LINE__, "CRASH_COND: \"" #cond "\" is true!"); \
+        GENERATE_TRAP \
+    } else\
+        ((void)0)\
+
+#endif
diff --git a/core/log/logger.cpp b/core/log/logger.cpp
new file mode 100644
index 0000000..17e3922
--- /dev/null
+++ b/core/log/logger.cpp
@@ -0,0 +1,52 @@
+#include "logger.h"
+
+#include <cstdio>
+
+void Logger::log_trace(const String &str)
+{
+    log_trace(str.data());
+}
+void Logger::log_trace(const char *str)
+{
+    printf("TRACE: %s\n", str);
+}
+
+void Logger::log_message(const String &str)
+{
+    log_message(str.data());
+}
+void Logger::log_message(const char *str)
+{
+    printf("MESSAGE: %s\n", str);
+}
+
+void Logger::log_warning(const String &str)
+{
+    log_warning(str.data());
+}
+void Logger::log_warning(const char *str)
+{
+    printf("WARNING: %s\n", str);
+}
+
+void Logger::log_error(const String &str)
+{
+    log_error(str.data());
+}
+void Logger::log_error(const char *str)
+{
+    printf("ERROR: %s\n", str);
+}
+
+void Logger::_log_error(const char *p_function, const char *p_file, int p_line, const char *str)
+{
+    printf("!ERROR: (%s) %s:%d. %s\n", p_file, p_function, p_line, str);
+}
+void Logger::_log_msg_error(const char *p_function, const char *p_file, int p_line, const char *p_msg, const char *str)
+{
+    printf("!ERROR: (%s) %s:%d :: %s. %s\n", p_file, p_function, p_line, str, p_msg);
+}
+void Logger::_log_index_error(const char *p_function, const char *p_file, int p_line, const int index, const int size, const char *str)
+{
+    printf("!INDEX ERROR: (%s) %s:%d :: index: %d/%d. %s\n", p_file, p_function, p_line, index, size, str);
+}
diff --git a/core/log/logger.h b/core/log/logger.h
new file mode 100644
index 0000000..60a7b25
--- /dev/null
+++ b/core/log/logger.h
@@ -0,0 +1,26 @@
+#ifndef LOGGER_H
+#define LOGGER_H
+
+#include "core/string.h"
+
+class Logger {
+public:
+    static void log_trace(const String &str);
+    static void log_trace(const char *str);
+
+    static void log_message(const String &str);
+    static void log_message(const char *str);
+
+    static void log_warning(const String &str);
+    static void log_warning(const char *str);
+
+    static void log_error(const String &str);
+    static void log_error(const char *str);
+
+    static void _log_error(const char *p_function, const char *p_file, int p_line, const char *str);
+    static void _log_msg_error(const char *p_function, const char *p_file, int p_line, const char *p_msg, const char *str);
+    static void _log_index_error(const char *p_function, const char *p_file, int p_line, const int index, const int size, const char *str);
+};
+
+
+#endif