cbuild-c/kerep-headers/base/errors.h
2023-07-12 11:34:41 +03:00

90 lines
2.5 KiB
C

#pragma once
#if __cplusplus
extern "C" {
#endif
#include "std.h"
#include "type_system/type_system.h"
PACKED_ENUM(ErrorId,
SUCCESS, // not an error
ERR_MAXLENGTH, ERR_WRONGTYPE, ERR_WRONGINDEX,
ERR_NOTIMPLEMENTED, ERR_NULLPTR, ERR_ENDOFSTR,
ERR_KEYNOTFOUND, ERR_FORMAT, ERR_UNEXPECTEDVAL,
ERR_IO, ERR_IO_EOF
)
char* errname(ErrorId err);
char* __genErrMsg(const char* errmsg, const char* srcfile, i32 line, const char* funcname);
char* __extendErrMsg(const char* errmsg, const char* srcfile, i32 line, const char* funcname);
STRUCT(Maybe,
Unitype value;
char* errmsg;
)
// return it if func doesn't return anything
// .value .errmsg
#define MaybeNull (Maybe){UniNull, NULL}
void Maybe_free(Maybe e);
void printMaybe(Maybe e);
#define SUCCESS(REZLT) (Maybe){.errmsg=NULL, .value=REZLT}
#define __RETURN_EXCEPTION(ERRMSG) return (Maybe){.value=UniNull, .errmsg=ERRMSG}
#define __EXIT(ERRMSG) ({ kprintf("\e[91m%s\e[0m \n", ERRMSG); free(ERRMSG); exit(128); })
char* __doNothing(char* a);
char* __unknownErr( );
#define __stringify_err(E) _Generic( \
(E), \
char*: __doNothing, \
int: errname, \
default: __unknownErr \
)(E)
#if __cplusplus
#define throw_id(E) __EXIT(((char*)__genErrMsg(errname(E), __FILE__,__LINE__,__func__)))
#define throw_msg(E) __EXIT(((char*)__genErrMsg(E, __FILE__,__LINE__,__func__)))
#define safethrow_id(E, FREEMEM) { FREEMEM; \
__RETURN_EXCEPTION(((char*)__genErrMsg(errname(E), __FILE__,__LINE__,__func__))); \
}
#define safethrow_msg(E, FREEMEM) { FREEMEM; \
__RETURN_EXCEPTION(((char*)__genErrMsg(E, __FILE__,__LINE__,__func__))); \
}
#define try_cpp(_funcCall, _rezult, freeMem) Maybe _rezult=_funcCall; if(_rezult.errmsg){ \
freeMem; \
_rezult.errmsg=__extendErrMsg(_rezult.errmsg, __FILE__,__LINE__,__func__); \
return _rezult; \
}
#else
#define throw(E) __EXIT(((char*)__genErrMsg((__stringify_err(E)), __FILE__,__LINE__,__func__)))
#define safethrow(E, FREEMEM) { FREEMEM; \
__RETURN_EXCEPTION(((char*)__genErrMsg((__stringify_err(E)), __FILE__,__LINE__,__func__))); \
}
#define try(_funcCall, _rezult, freeMem) Maybe _rezult=_funcCall; if(_rezult.errmsg){ \
freeMem; \
_rezult.errmsg=__extendErrMsg(_rezult.errmsg, __FILE__,__LINE__,__func__); \
return _rezult; \
}
#endif
#define tryLast(_funcCall, _rezult, ON_EXIT) Maybe _rezult=_funcCall; if(_rezult.errmsg){ \
_rezult.errmsg=__extendErrMsg(_rezult.errmsg, __FILE__,__LINE__,__func__); \
__EXIT(_rezult.errmsg); \
}
#if __cplusplus
}
#endif