1berry/pawn-compiler
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trigger destructor not implemented error

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```
#include <a_samp>

forward operator~(Error:right[], size);
main() {
    new Error:e;
}
```

```
CODE 0    ; 0
;program exit point
    halt 0

    proc    ; main
    ; line 4
    ; line 5
    break    ; c
    ;$lcl e fffffffc
    push.c 0
    ;$exp
    push.pri
    push.c 1
    addr.pri fffffffc
    push.pri
    push.c 8
    call .~4000000f    ; operator~(Error:)
    pop.pri
    stack 4
    zero.pri
    retn

STKSIZE 1000
```

The compiler tries to call a non-existent function. This commit instead throws "function not implemented" error when destructor definition is missing.
This commit is contained in:
Yashas 2018-06-08 21:17:11 +05:30
parent da9d65057a
commit ce17cff7f7
1 changed files with 8 additions and 0 deletions
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8
source/compiler/sc1.c
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@ -4967,6 +4967,14 @@ static void destructsymbols(symbol *root,int level)
/* check that the '~' operator is defined for this tag */
operator_symname(symbolname,"~",sym->tag,0,1,0);
if ((opsym=findglb(symbolname,sGLOBAL))!=NULL) {
if ((opsym->usage & uMISSING)!=0 || (opsym->usage & uPROTOTYPED)==0) {
char symname[2*sNAMEMAX+16]; /* allow space for user defined operators */
funcdisplayname(symname,opsym->name);
if ((opsym->usage & uMISSING)!=0)
error(4,symname); /* function not defined */
if ((opsym->usage & uPROTOTYPED)==0)
error(71,symname); /* operator must be declared before use */
} /* if */
/* save PRI, in case of a return statment */
if (!savepri) {
pushreg(sPRI); /* right-hand operand is in PRI */