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Laika/lib/include/lerror.h

55 lines
2.7 KiB
C

#ifndef LAIKA_ERROR_H
#define LAIKA_ERROR_H
#include "laika.h"
#include <setjmp.h>
#include <stdio.h>
/* defines errorstack size */
#define LAIKA_MAXERRORS 32
/* DO NOT RETURN/GOTO/BREAK or otherwise skip LAIKA_TRYEND */
#define LAIKA_TRY if (setjmp(eLaika_errStack[++eLaika_errIndx]) == 0) {
#define LAIKA_CATCH \
} \
else \
{
#define LAIKA_TRYEND \
} \
--eLaika_errIndx;
/* if eLaika_errIndx is >= 0, we have a safe spot to jump too if an error is thrown */
#define LAIKA_ISPROTECTED (eLaika_errIndx >= 0)
/* LAIKA_ERROR(printf args):
if called after a LAIKA_TRY block will jump to the previous LAIKA_CATCH/LAIKA_TRYEND block,
otherwise program is exit()'d. if DEBUG is defined printf is called with passed args, else
arguments are ignored.
*/
#ifndef DEBUG
# define LAIKA_ERROR(...) \
do { \
if (LAIKA_ISPROTECTED) \
longjmp(eLaika_errStack[eLaika_errIndx], 1); \
else \
exit(1); \
} while (0);
# define LAIKA_WARN(...) ((void)0) /* no op */
#else
# define LAIKA_ERROR(...) \
do { \
printf("[ERROR] : " __VA_ARGS__); \
if (LAIKA_ISPROTECTED) \
longjmp(eLaika_errStack[eLaika_errIndx], 1); \
else \
exit(1); \
} while (0);
# define LAIKA_WARN(...) printf("[WARN] : " __VA_ARGS__);
#endif
extern int eLaika_errIndx;
extern jmp_buf eLaika_errStack[LAIKA_MAXERRORS];
#endif