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
|
/*************************************************************************/
/* error_macros.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* 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
/**
* Error macros. Unlike exceptions and asserts, these macros try to mantain 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);
#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
#define ERR_FAIL_INDEX(m_index, m_size) \
do { \
if ((m_index) < 0 || (m_index) >= (m_size)) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Index " _STR(m_index) " out of size (" _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 ((m_index) < 0 || (m_index) >= (m_size)) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Index " _STR(m_index) " out of size (" _STR(m_size) ")."); \
return m_retval; \
} else \
_err_error_exists = false; \
} 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 (!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 (!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 (m_cond) { \
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true."); \
return; \
} else \
_err_error_exists = false; \
}
/** 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 (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 (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 (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; \
}
/** 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
|