1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314
|
/*************************************************************************/
/* error_macros.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* 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 ERROR_MACROS_H
#define ERROR_MACROS_H
#include "typedefs.h"
/**
* Error macros. Unlike exceptions and asserts, these macros try to maintain consistency and stability
* inside the code. It is recommended to always return processable data, so in case of an error, the
* engine can stay working well.
* In most cases, bugs and/or invalid data are not fatal and should never allow a perfectly running application
* to fail or crash.
*/
/**
* Pointer to the error macro priting function. Reassign to any function to have errors printed
*/
/** Function used by the error macros */
// function, file, line, error, explanation
enum ErrorHandlerType {
ERR_HANDLER_ERROR,
ERR_HANDLER_WARNING,
ERR_HANDLER_SCRIPT,
ERR_HANDLER_SHADER,
};
typedef void (*ErrorHandlerFunc)(void *, const char *, const char *, int p_line, const char *, const char *, ErrorHandlerType p_type);
void _err_set_last_error(const char *p_err);
void _err_clear_last_error();
struct ErrorHandlerList {
ErrorHandlerFunc errfunc;
void *userdata;
ErrorHandlerList *next;
ErrorHandlerList() {
errfunc = 0;
next = 0;
userdata = 0;
}
};
void add_error_handler(ErrorHandlerList *p_handler);
void remove_error_handler(ErrorHandlerList *p_handler);
void _err_print_error(const char *p_function, const char *p_file, int p_line, const char *p_error, ErrorHandlerType p_type = ERR_HANDLER_ERROR);
void _err_print_index_error(const char *p_function, const char *p_file, int p_line, int64_t p_index, int64_t p_size, const char *p_index_str, const char *p_size_str, bool fatal = false);
#ifndef _STR
#define _STR(m_x) #m_x
#define _MKSTR(m_x) _STR(m_x)
#endif
#define _FNL __FILE__ ":"
/** An index has failed if m_index<0 or m_index >=m_size, the function exists */
extern bool _err_error_exists;
#ifdef DEBUG_ENABLED
/** Print a warning string.
*/
#define ERR_EXPLAINC(m_reason) \
{ \
_err_set_last_error(m_reason); \
_err_error_exists = true; \
}
#define ERR_EXPLAIN(m_string) \
{ \
_err_set_last_error(String(m_string).utf8().get_data()); \
_err_error_exists = true; \
}
#else
#define ERR_EXPLAIN(m_text)
#define ERR_EXPLAINC(m_text)
#endif
#ifdef __GNUC__
//#define FUNCTION_STR __PRETTY_FUNCTION__ - too annoying
#define FUNCTION_STR __FUNCTION__
#else
#define FUNCTION_STR __FUNCTION__
#endif
// Don't use this directly; instead, use any of the CRASH_* macros
#ifdef _MSC_VER
#define GENERATE_TRAP \
__debugbreak(); \
/* Avoid warning about control paths */ \
for (;;) { \
}
#else
#define GENERATE_TRAP __builtin_trap();
#endif
// (*): See https://stackoverflow.com/questions/257418/do-while-0-what-is-it-good-for
#define ERR_FAIL_INDEX(m_index, m_size) \
do { \
if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size)); \
return; \
} else \
_err_error_exists = false; \
} while (0); // (*)
/** An index has failed if m_index<0 or m_index >=m_size, the function exists.
* This function returns an error value, if returning Error, please select the most
* appropriate error condition from error_macros.h
*/
#define ERR_FAIL_INDEX_V(m_index, m_size, m_retval) \
do { \
if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size)); \
return m_retval; \
} else \
_err_error_exists = false; \
} while (0); // (*)
/** Use this one if there is no sensible fallback, that is, the error is unrecoverable.
* We'll return a null reference and try to keep running.
*/
#define CRASH_BAD_INDEX(m_index, m_size) \
do { \
if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
_err_print_index_error(FUNCTION_STR, __FILE__, __LINE__, m_index, m_size, _STR(m_index), _STR(m_size), true); \
GENERATE_TRAP \
} \
} while (0); // (*)
/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
* the function will exit.
*/
#define ERR_FAIL_NULL(m_param) \
{ \
if (unlikely(!m_param)) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter ' " _STR(m_param) " ' is null."); \
return; \
} else \
_err_error_exists = false; \
}
#define ERR_FAIL_NULL_V(m_param, m_retval) \
{ \
if (unlikely(!m_param)) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter ' " _STR(m_param) " ' is null."); \
return m_retval; \
} else \
_err_error_exists = false; \
}
/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
* the function will exit.
*/
#define ERR_FAIL_COND(m_cond) \
{ \
if (unlikely(m_cond)) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true."); \
return; \
} else \
_err_error_exists = false; \
}
/** Use this one if there is no sensible fallback, that is, the error is unrecoverable.
*/
#define CRASH_COND(m_cond) \
{ \
if (unlikely(m_cond)) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Condition ' " _STR(m_cond) " ' is true."); \
GENERATE_TRAP \
} \
}
/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
* the function will exit.
* This function returns an error value, if returning Error, please select the most
* appropriate error condition from error_macros.h
*/
#define ERR_FAIL_COND_V(m_cond, m_retval) \
{ \
if (unlikely(m_cond)) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true. returned: " _STR(m_retval)); \
return m_retval; \
} else \
_err_error_exists = false; \
}
/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
* the loop will skip to the next iteration.
*/
#define ERR_CONTINUE(m_cond) \
{ \
if (unlikely(m_cond)) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true. Continuing..:"); \
continue; \
} else \
_err_error_exists = false; \
}
/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
* the loop will break
*/
#define ERR_BREAK(m_cond) \
{ \
if (unlikely(m_cond)) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true. Breaking..:"); \
break; \
} else \
_err_error_exists = false; \
}
/** Print an error string and return
*/
#define ERR_FAIL() \
{ \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method/Function Failed."); \
_err_error_exists = false; \
return; \
}
/** Print an error string and return with value
*/
#define ERR_FAIL_V(m_value) \
{ \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method/Function Failed, returning: " __STR(m_value)); \
_err_error_exists = false; \
return m_value; \
}
/** Use this one if there is no sensible fallback, that is, the error is unrecoverable.
*/
#define CRASH_NOW() \
{ \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Method/Function Failed."); \
GENERATE_TRAP \
}
/** Print an error string.
*/
#define ERR_PRINT(m_string) \
{ \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string); \
_err_error_exists = false; \
}
#define ERR_PRINTS(m_string) \
{ \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, String(m_string).utf8().get_data()); \
_err_error_exists = false; \
}
/** Print a warning string.
*/
#define WARN_PRINT(m_string) \
{ \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string, ERR_HANDLER_WARNING); \
_err_error_exists = false; \
}
#define WARN_PRINTS(m_string) \
{ \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, String(m_string).utf8().get_data(), ERR_HANDLER_WARNING); \
_err_error_exists = false; \
}
#endif
|