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Annotation of parser3/src/include/pa_exception.h, revision 1.3

1.1       paf         1: /*
1.3     ! paf         2:   $Id: pa_exception.h,v 1.2 2001/01/30 13:07:31 paf Exp $
1.1       paf         3: */
                      4: 
                      5: #ifndef PA_EXCEPTION_H
                      6: #define PA_EXCEPTION_H
                      7: 
                      8: #include <setjmp.h>
                      9: 
                     10: #include "pa_types.h"
                     11: #include "pa_string.h"
                     12: 
                     13: class Exception {
                     14: public:
                     15: 
                     16:        // address for long jump to jump to 
1.3     ! paf        17:        // regretfully public:
        !            18:        //   can't make local unless sure of inlining
        !            19:        //   for to-die stack frame ruins it all
1.1       paf        20:        jmp_buf mark;
                     21: 
                     22:        void raise(
                     23:                const String *atype, const String *acode,
                     24:                const String *aproblem_source, 
                     25:                const char *comment_fmt, ...);
                     26: 
                     27:        const String *type() { return ftype; }
                     28:        const String *code() { return fcode; }
                     29:        const String *problem_source() { return fproblem_source; }
1.2       paf        30:        const char *comment() { return fcomment[0]?fcomment:0; }
1.1       paf        31: 
                     32: private:
                     33: 
                     34:        const String *ftype, *fcode, *fproblem_source;
                     35:        char fcomment[MAX_STRING];
                     36: };
                     37: 
1.3     ! paf        38: // usage:
        !            39: //   if(EXCEPTION_TRY(e)) { ...; if(?) e.raise(?); ...; } else { catch-code }
        !            40: #define EXCEPTION_TRY(e) (setjmp((e).mark)==0)
1.1       paf        41: 
                     42: #endif