129 lines
3.2 KiB
C
129 lines
3.2 KiB
C
/***************************************************************************
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gb_error.h
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(c) 2000-2017 Benoît Minisini <benoit.minisini@gambas-basic.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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***************************************************************************/
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#ifndef __GB_ERROR_H
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#define __GB_ERROR_H
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#include <errno.h>
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#include <setjmp.h>
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#include "gb_limit.h"
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#define E_UNKNOWN ((const char *)0)
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#define E_MEMORY ((const char *)1)
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#define E_OPEN ((const char *)2)
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#define E_READ ((const char *)3)
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#define E_SYNTAX ((const char *)4)
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#define E_UNEXPECTED ((const char *)5)
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#define E_EXPECTED ((const char *)6)
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#define E_MISSING ((const char *)7)
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#define E_SYNTAX_MISSING ((const char *)8)
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#define E_TOOLONG ((const char *)9)
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#define E_BADARG ((const char *)10)
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typedef
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struct {
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int code;
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char msg[MAX_ERROR_MSG + 1];
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}
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ERROR_INFO;
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typedef
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struct _ERROR {
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struct _ERROR *prev;
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int code;
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jmp_buf env;
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}
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ERROR_CONTEXT;
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#ifndef __GB_ERROR_C
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EXTERN ERROR_INFO ERROR_info;
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EXTERN bool ERROR_translate;
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EXTERN ERROR_CONTEXT *ERROR_current;
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#endif
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#define ERROR_LEAVE_DONE ((ERROR_CONTEXT *)-1)
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#define TRY \
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{ \
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ERROR_CONTEXT __err_context; \
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{ \
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ERROR_CONTEXT *__err = &__err_context; \
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ERROR_enter(__err); \
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__err->code = setjmp(__err->env); \
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if (__err->code == 0)
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#define FINALLY
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#define CATCH \
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if (__err->code != 0 && ((__err->code = 0), TRUE))
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#define CATCH_GET(get_it) \
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if (__err->code != 0 && ((get_it = __err->code), TRUE) && ((__err->code = 0), TRUE))
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#define END_TRY \
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if (__err->code == 0) \
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ERROR_leave(__err); \
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else \
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PROPAGATE(); \
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} \
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}
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#define ERROR_enter(_err) \
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do { \
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_err->prev = ERROR_current; \
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_err->code = 0; \
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ERROR_current = _err; \
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} while(0)
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#define ERROR_leave(_err) \
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do { \
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if (_err->prev != ERROR_LEAVE_DONE) \
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{ \
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ERROR_CONTEXT *_prev = _err->prev; \
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_err->prev = ERROR_LEAVE_DONE; \
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ERROR_current = _prev; \
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} \
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} while(0)
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#define ERROR_clear() (ERROR_info.code = 0)
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char *ERROR_get(void);
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void ERROR_define(const char *pattern, const char *arg[]);
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void PROPAGATE() NORETURN;
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void THROW(const char *code, ...) NORETURN;
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void THROW_SYSTEM(int err, const char *path);
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void ERROR_panic(const char *error, ...) NORETURN;
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void ERROR_print(void);
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void ERROR_print_at(FILE *where);
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void ERROR_warning(const char *warning, ...);
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void ERROR_fail(const char *error, ...) NORETURN;
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/*PUBLIC void ERROR_must_free(void *object);*/
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#endif
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