Improve and document error macros
Documentation can be visible in many IDEs by hovering the macro anywhere it's used. Error message styling was also tweaked for consistency.
This commit is contained in:
Hugo Locurcio
parent
97cc2e53f6
commit
37d55ff153
2 changed files with 206 additions and 122 deletions
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@ -106,7 +106,7 @@ void _err_print_error(const char *p_function, const char *p_file, int p_line, co
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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, const char *p_message, bool fatal) {
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String fstr(fatal ? "FATAL: " : "");
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String err(fstr + "Index " + p_index_str + "=" + itos(p_index) + " out of size (" + p_size_str + "=" + itos(p_size) + ")");
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String err(fstr + "Index " + p_index_str + " = " + itos(p_index) + " is out of bounds (" + p_size_str + " = " + itos(p_size) + ").");
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_err_print_error(p_function, p_file, p_line, err.utf8().get_data(), p_message);
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}
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@ -34,8 +34,8 @@
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#include "core/typedefs.h"
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/**
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* Error macros. Unlike exceptions and asserts, these macros try to maintain 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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* inside the code. It is recommended to always return processable data, so in case of an error,
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* the engine can keep 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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@ -120,6 +120,11 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
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// (*): See https://stackoverflow.com/questions/257418/do-while-0-what-is-it-good-for
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`, prints a generic
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* error message and returns from the function. This macro should be preferred to
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* `ERR_FAIL_COND` for bounds checking.
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*/
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#define ERR_FAIL_INDEX(m_index, m_size) \
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do { \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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@ -128,6 +133,11 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
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} \
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} while (0); // (*)
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`, prints a custom
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* error message and returns from the function. This macro should be preferred to
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* `ERR_FAIL_COND_MSG` for bounds checking.
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*/
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#define ERR_FAIL_INDEX_MSG(m_index, m_size, m_msg) \
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do { \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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@ -136,11 +146,11 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
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} \
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} while (0); // (*)
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/** An index has failed if m_index<0 or m_index >=m_size, the function exits.
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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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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`,
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* prints a generic error message and returns the value specified in `m_retval`.
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* This macro should be preferred to `ERR_FAIL_COND_V` for bounds checking.
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*/
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#define ERR_FAIL_INDEX_V(m_index, m_size, m_retval) \
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do { \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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@ -149,6 +159,11 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
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} \
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} while (0); // (*)
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`,
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* prints a custom error message and returns the value specified in `m_retval`.
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* This macro should be preferred to `ERR_FAIL_COND_V_MSG` for bounds checking.
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*/
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#define ERR_FAIL_INDEX_V_MSG(m_index, m_size, m_retval, m_msg) \
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do { \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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@ -157,11 +172,11 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
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} \
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} while (0); // (*)
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/** An index has failed if m_index >=m_size, the function exits.
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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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/**
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* If `m_index` is greater than or equal to `m_size`,
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* prints a generic error message and returns the value specified in `m_retval`.
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* This macro should be preferred to `ERR_FAIL_COND_V` for unsigned bounds checking.
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*/
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#define ERR_FAIL_UNSIGNED_INDEX_V(m_index, m_size, m_retval) \
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do { \
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if (unlikely((m_index) >= (m_size))) { \
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@ -170,6 +185,11 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
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} \
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} while (0); // (*)
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/**
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* If `m_index` is greater than or equal to `m_size`,
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* prints a custom error message and returns the value specified in `m_retval`.
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* This macro should be preferred to `ERR_FAIL_COND_V_MSG` for unsigned bounds checking.
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*/
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#define ERR_FAIL_UNSIGNED_INDEX_V_MSG(m_index, m_size, m_retval, m_msg) \
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do { \
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if (unlikely((m_index) >= (m_size))) { \
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@ -178,9 +198,12 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
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} \
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} while (0); // (*)
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/** Use this one if there is no sensible fallback, that is, the error is unrecoverable.
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* We'll return a null reference and try to keep running.
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*/
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`,
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* crashes the engine immediately with a generic error message.
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* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
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* This macro should be preferred to `CRASH_COND` for bounds checking.
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*/
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#define CRASH_BAD_INDEX(m_index, m_size) \
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do { \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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@ -189,6 +212,12 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
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} \
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} while (0); // (*)
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/**
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* If `m_index` is less than 0 or greater than or equal to `m_size`,
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* crashes the engine immediately with a custom error message.
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* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
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* This macro should be preferred to `CRASH_COND` for bounds checking.
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*/
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#define CRASH_BAD_INDEX_MSG(m_index, m_size, m_msg) \
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do { \
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if (unlikely((m_index) < 0 || (m_index) >= (m_size))) { \
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@ -197,201 +226,239 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
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} \
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} 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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/**
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* If `m_param` is `null`, prints a generic error message and returns from the function.
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*/
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#define ERR_FAIL_NULL(m_param) \
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{ \
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if (unlikely(!m_param)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter ' " _STR(m_param) " ' is null."); \
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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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} \
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}
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/**
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* If `m_param` is `null`, prints a custom error message and returns from the function.
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*/
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#define ERR_FAIL_NULL_MSG(m_param, m_msg) \
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{ \
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if (unlikely(!m_param)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter ' " _STR(m_param) " ' is null.", DEBUG_STR(m_msg)); \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter \"" _STR(m_param) "\" is null.", DEBUG_STR(m_msg)); \
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return; \
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} \
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}
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/**
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* If `m_param` is `null`, prints a generic error message and returns the value specified in `m_retval`.
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*/
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#define ERR_FAIL_NULL_V(m_param, m_retval) \
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{ \
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if (unlikely(!m_param)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter ' " _STR(m_param) " ' is null."); \
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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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} \
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}
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/**
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* If `m_param` is `null`, prints a custom error message and returns the value specified in `m_retval`.
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*/
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#define ERR_FAIL_NULL_V_MSG(m_param, m_retval, m_msg) \
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{ \
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if (unlikely(!m_param)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter ' " _STR(m_param) " ' is null.", DEBUG_STR(m_msg)); \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Parameter \"" _STR(m_param) "\" is null.", DEBUG_STR(m_msg)); \
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return m_retval; \
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} \
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}
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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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* If `m_cond` evaluates to `true`, prints a generic error message and returns from the function.
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*/
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#define ERR_FAIL_COND(m_cond) \
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{ \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true."); \
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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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} \
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}
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/**
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* If `m_cond` evaluates to `true`, prints a custom error message and returns from the function.
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*/
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#define ERR_FAIL_COND_MSG(m_cond, m_msg) \
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{ \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true.", DEBUG_STR(m_msg)); \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true.", DEBUG_STR(m_msg)); \
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return; \
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} \
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}
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/** Use this one if there is no sensible fallback, that is, the error is unrecoverable.
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/**
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* If `m_cond` evaluates to `true`, crashes the engine immediately with a generic error message.
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* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
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*/
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#define CRASH_COND(m_cond) \
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{ \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Condition ' " _STR(m_cond) " ' is true."); \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Condition \"" _STR(m_cond) "\" is true."); \
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GENERATE_TRAP \
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} \
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}
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/**
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* If `m_cond` evaluates to `true`, crashes the engine immediately with a custom error message.
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* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
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*/
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#define CRASH_COND_MSG(m_cond, m_msg) \
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{ \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Condition ' " _STR(m_cond) " ' is true.", DEBUG_STR(m_msg)); \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Condition \"" _STR(m_cond) "\" is true.", DEBUG_STR(m_msg)); \
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GENERATE_TRAP \
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} \
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}
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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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* If `m_cond` evaluates to `true`, prints a generic error message and returns the value specified in `m_retval`.
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*/
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#define ERR_FAIL_COND_V(m_cond, m_retval) \
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{ \
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if (unlikely(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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_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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} \
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}
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/**
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* If `m_cond` evaluates to `true`, prints a custom error message and returns the value specified in `m_retval`.
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*/
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#define ERR_FAIL_COND_V_MSG(m_cond, m_retval, m_msg) \
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{ \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true. returned: " _STR(m_retval), DEBUG_STR(m_msg)); \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Returned: " _STR(m_retval), DEBUG_STR(m_msg)); \
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return m_retval; \
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} \
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}
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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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* If `m_cond` evaluates to `true`, prints a custom error message and continues the loop the macro is located in.
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*/
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#define ERR_CONTINUE(m_cond) \
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{ \
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if (unlikely(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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} \
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}
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#define ERR_CONTINUE_MSG(m_cond, m_msg) \
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{ \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true. Continuing..:", DEBUG_STR(m_msg)); \
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continue; \
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} \
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}
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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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#define ERR_CONTINUE(m_cond) \
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{ \
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if (unlikely(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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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Continuing."); \
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continue; \
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} \
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}
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#define ERR_BREAK_MSG(m_cond, m_msg) \
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/**
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* If `m_cond` evaluates to `true`, prints a custom error message and continues the loop the macro is located in.
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*/
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#define ERR_CONTINUE_MSG(m_cond, m_msg) \
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{ \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition ' " _STR(m_cond) " ' is true. Breaking..:", DEBUG_STR(m_msg)); \
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break; \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Continuing.", DEBUG_STR(m_msg)); \
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continue; \
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} \
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}
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/** Print an error string and return
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/**
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* If `m_cond` evaluates to `true`, prints a generic error message and breaks from the loop the macro is located in.
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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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return; \
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#define ERR_BREAK(m_cond) \
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{ \
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if (unlikely(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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} \
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}
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#define ERR_FAIL_MSG(m_msg) \
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{ \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method/Function Failed.", DEBUG_STR(m_msg)); \
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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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* If `m_cond` evaluates to `true`, prints a custom error message and breaks from the loop the macro is located in.
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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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return m_value; \
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#define ERR_BREAK_MSG(m_cond, m_msg) \
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{ \
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if (unlikely(m_cond)) { \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Condition \"" _STR(m_cond) "\" is true. Breaking.", DEBUG_STR(m_msg)); \
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break; \
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} \
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}
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#define ERR_FAIL_V_MSG(m_value, m_msg) \
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{ \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method/Function Failed, returning: " __STR(m_value), DEBUG_STR(m_msg)); \
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return m_value; \
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}
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/** Use this one if there is no sensible fallback, that is, the error is unrecoverable.
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/**
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* Prints a generic error message and returns from the function.
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*/
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#define CRASH_NOW() \
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{ \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Method/Function Failed."); \
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GENERATE_TRAP \
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#define ERR_FAIL() \
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{ \
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_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method failed."); \
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return; \
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}
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#define CRASH_NOW_MSG(m_msg) \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Method/Function Failed.", DEBUG_STR(m_msg)); \
|
||||
GENERATE_TRAP \
|
||||
}
|
||||
|
||||
/** Print an error string.
|
||||
/**
|
||||
* Prints a custom error message and returns from the function.
|
||||
*/
|
||||
#define ERR_FAIL_MSG(m_msg) \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method failed.", DEBUG_STR(m_msg)); \
|
||||
return; \
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints a generic error message and returns the value specified in `m_retval`.
|
||||
*/
|
||||
#define ERR_FAIL_V(m_retval) \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method failed. Returning: " __STR(m_retval)); \
|
||||
return m_retval; \
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints a custom error message and returns the value specified in `m_retval`.
|
||||
*/
|
||||
#define ERR_FAIL_V_MSG(m_retval, m_msg) \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "Method failed. Returning: " __STR(m_retval), DEBUG_STR(m_msg)); \
|
||||
return m_retval; \
|
||||
}
|
||||
|
||||
/**
|
||||
* Crashes the engine immediately with a generic error message.
|
||||
* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
|
||||
*/
|
||||
#define CRASH_NOW() \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Method failed."); \
|
||||
GENERATE_TRAP \
|
||||
}
|
||||
|
||||
/**
|
||||
* Crashes the engine immediately with a custom error message.
|
||||
* Only use this if there's no sensible fallback (i.e. the error is unrecoverable).
|
||||
*/
|
||||
#define CRASH_NOW_MSG(m_msg) \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "FATAL: Method failed.", DEBUG_STR(m_msg)); \
|
||||
GENERATE_TRAP \
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints an error message without returning.
|
||||
*/
|
||||
#define ERR_PRINT(m_string) \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string); \
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints an error message without returning.
|
||||
* FIXME: Remove this macro and replace all uses with `ERR_PRINT` as it's identical.
|
||||
*/
|
||||
#define ERR_PRINTS(m_string) \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string); \
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints an error message without returning, but only do so once in the application lifecycle.
|
||||
* This can be used to avoid spamming the console with error messages.
|
||||
*/
|
||||
#define ERR_PRINT_ONCE(m_string) \
|
||||
{ \
|
||||
static bool first_print = true; \
|
||||
|
|
@ -401,19 +468,28 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
|
|||
} \
|
||||
}
|
||||
|
||||
/** Print a warning string.
|
||||
/**
|
||||
* Prints a warning message without returning. To warn about deprecated usage,
|
||||
* use `WARN_DEPRECATED` or `WARN_DEPRECATED_MSG` instead.
|
||||
*/
|
||||
|
||||
#define WARN_PRINT(m_string) \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string, ERR_HANDLER_WARNING); \
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints a warning message without returning.
|
||||
* FIXME: Remove this macro and replace all uses with `WARN_PRINT` as it's identical.
|
||||
*/
|
||||
#define WARN_PRINTS(m_string) \
|
||||
{ \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, m_string, ERR_HANDLER_WARNING); \
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints a warning message without returning, but only do so once in the application lifecycle.
|
||||
* This can be used to avoid spamming the console with warning messages.
|
||||
*/
|
||||
#define WARN_PRINT_ONCE(m_string) \
|
||||
{ \
|
||||
static bool first_print = true; \
|
||||
|
|
@ -423,22 +499,30 @@ void _err_print_index_error(const char *p_function, const char *p_file, int p_li
|
|||
} \
|
||||
}
|
||||
|
||||
#define WARN_DEPRECATED \
|
||||
{ \
|
||||
static volatile bool warning_shown = false; \
|
||||
if (!warning_shown) { \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "This method has been deprecated and will be removed in the future", ERR_HANDLER_WARNING); \
|
||||
warning_shown = true; \
|
||||
} \
|
||||
/**
|
||||
* Prints a generic deprecation warning message without returning.
|
||||
* This should be preferred to `WARN_PRINT` for deprecation warnings.
|
||||
*/
|
||||
#define WARN_DEPRECATED \
|
||||
{ \
|
||||
static volatile bool warning_shown = false; \
|
||||
if (!warning_shown) { \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "This method has been deprecated and will be removed in the future.", ERR_HANDLER_WARNING); \
|
||||
warning_shown = true; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define WARN_DEPRECATED_MSG(m_msg) \
|
||||
{ \
|
||||
static volatile bool warning_shown = false; \
|
||||
if (!warning_shown) { \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "This method has been deprecated and will be removed in the future", m_msg, ERR_HANDLER_WARNING); \
|
||||
warning_shown = true; \
|
||||
} \
|
||||
/**
|
||||
* Prints a custom deprecation warning message without returning.
|
||||
* This should be preferred to `WARN_PRINT` for deprecation warnings.
|
||||
*/
|
||||
#define WARN_DEPRECATED_MSG(m_msg) \
|
||||
{ \
|
||||
static volatile bool warning_shown = false; \
|
||||
if (!warning_shown) { \
|
||||
_err_print_error(FUNCTION_STR, __FILE__, __LINE__, "This method has been deprecated and will be removed in the future.", m_msg, ERR_HANDLER_WARNING); \
|
||||
warning_shown = true; \
|
||||
} \
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Reference in a new issue