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233 lines
8 KiB
C++
233 lines
8 KiB
C++
/*************************************************************************/
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/* error_macros.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef ERROR_MACROS_H
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#define ERROR_MACROS_H
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/**
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* Error macros. Unlike exceptions and asserts, these macros try to mantain consistency and stability
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* inside the code. It is recommended to always return processable data, so in case of an error, the
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* engine can stay working well.
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* In most cases, bugs and/or invalid data are not fatal and should never allow a perfectly running application
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* to fail or crash.
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*/
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/**
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* Pointer to the error macro priting function. Reassign to any function to have errors printed
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*/
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/** Function used by the error macros */
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// function, file, line, error, explanation
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enum ErrorHandlerType {
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ERR_HANDLER_ERROR,
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ERR_HANDLER_WARNING,
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ERR_HANDLER_SCRIPT,
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ERR_HANDLER_SHADER,
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};
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typedef void (*ErrorHandlerFunc)(void*,const char*,const char*,int p_line,const char *, const char *,ErrorHandlerType p_type);
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void _err_set_last_error(const char* p_err);
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void _err_clear_last_error();
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struct ErrorHandlerList {
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ErrorHandlerFunc errfunc;
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void *userdata;
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ErrorHandlerList*next;
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ErrorHandlerList() { errfunc=0; next=0; userdata=0; }
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};
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void add_error_handler(ErrorHandlerList *p_handler);
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void remove_error_handler(ErrorHandlerList *p_handler);
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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);
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#ifndef _STR
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#define _STR(m_x) #m_x
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#define _MKSTR(m_x) _STR(m_x)
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#endif
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#define _FNL __FILE__":"
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/** An index has failed if m_index<0 or m_index >=m_size, the function exists */
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extern bool _err_error_exists;
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#ifdef DEBUG_ENABLED
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/** Print a warning string.
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*/
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#define ERR_EXPLAINC(m_reason) {_err_set_last_error(m_reason); _err_error_exists=true;}
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#define ERR_EXPLAIN(m_string) {_err_set_last_error(String(m_string).utf8().get_data()); _err_error_exists=true;}
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#else
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#define ERR_EXPLAIN( m_text )
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#define ERR_EXPLAINC( m_text )
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#endif
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#ifdef __GNUC__
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//#define FUNCTION_STR __PRETTY_FUNCTION__ - too annoying
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#define FUNCTION_STR __FUNCTION__
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#else
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#define FUNCTION_STR __FUNCTION__
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#endif
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#define ERR_FAIL_INDEX(m_index,m_size) \
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do {if ((m_index)<0 || (m_index)>=(m_size)) { \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Index " _STR(m_index)" out of size (" _STR(m_size)")."); \
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return; \
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} else _err_error_exists=false; } while(0); \
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/** An index has failed if m_index<0 or m_index >=m_size, the function exists.
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* This function returns an error value, if returning Error, please select the most
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* appropriate error condition from error_macros.h
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*/
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#define ERR_FAIL_INDEX_V(m_index,m_size,m_retval) \
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do {if ((m_index)<0 || (m_index)>=(m_size)) { \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Index " _STR(m_index)" out of size (" _STR(m_size)")."); \
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return m_retval; \
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} else _err_error_exists=false;} while (0);
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/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
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* the function will exit.
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*/
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#define ERR_FAIL_NULL(m_param) \
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{ if ( !m_param ) { \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Parameter ' " _STR(m_param)" ' is null."); \
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return; \
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}else _err_error_exists=false; } \
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#define ERR_FAIL_NULL_V(m_param,m_retval) \
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{ if ( !m_param ) { \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Parameter ' " _STR(m_param)" ' is null."); \
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return m_retval; \
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}else _err_error_exists=false; } \
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/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
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* the function will exit.
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*/
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#define ERR_FAIL_COND(m_cond) \
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{ if ( m_cond ) { \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Condition ' " _STR(m_cond)" ' is true."); \
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return; \
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}else _err_error_exists=false; } \
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/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
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* the function will exit.
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* This function returns an error value, if returning Error, please select the most
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* appropriate error condition from error_macros.h
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*/
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#define ERR_FAIL_COND_V(m_cond,m_retval) \
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{ if ( m_cond ) { \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Condition ' " _STR(m_cond)" ' is true. returned: " _STR(m_retval)); \
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return m_retval; \
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}else _err_error_exists=false; } \
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/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
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* the loop will skip to the next iteration.
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*/
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#define ERR_CONTINUE(m_cond) \
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{ if ( m_cond ) { \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Condition ' " _STR(m_cond)" ' is true. Continuing..:"); \
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continue;\
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} else _err_error_exists=false;} \
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/** An error condition happened (m_cond tested true) (WARNING this is the opposite as assert().
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* the loop will break
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*/
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#define ERR_BREAK(m_cond) \
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{ if ( m_cond ) { \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Condition ' " _STR(m_cond)" ' is true. Breaking..:"); \
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break;\
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} else _err_error_exists=false;} \
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/** Print an error string and return
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*/
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#define ERR_FAIL() \
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{ \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Method/Function Failed."); \
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_err_error_exists=false;\
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return;\
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} \
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/** Print an error string and return with value
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*/
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#define ERR_FAIL_V(m_value) \
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{ \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,"Method/Function Failed, returning: " __STR(m_value)); \
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_err_error_exists=false; \
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return m_value;\
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} \
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/** Print an error string.
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*/
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#define ERR_PRINT(m_string) \
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{ \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,m_string); \
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_err_error_exists=false;\
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} \
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#define ERR_PRINTS(m_string) \
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{ \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,String(m_string).utf8().get_data()); \
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_err_error_exists=false;\
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} \
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/** Print a warning string.
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*/
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#define WARN_PRINT(m_string) \
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{ \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,m_string,ERR_HANDLER_WARNING); \
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_err_error_exists=false;\
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} \
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#define WARN_PRINTS(m_string) \
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{ \
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_err_print_error(FUNCTION_STR,__FILE__,__LINE__,String(m_string).utf8().get_data(),ERR_HANDLER_WARNING); \
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_err_error_exists=false;\
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} \
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#endif
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