cannot jump to a setlist count

This commit is contained in:
Roberto Ierusalimschy 2004-10-07 14:27:00 -03:00
parent f1c2dd3aed
commit 5cb6037d49
1 changed files with 8 additions and 2 deletions

View File

@ -1,5 +1,5 @@
/*
** $Id: ldebug.c,v 2.8 2004/09/01 13:47:31 roberto Exp $
** $Id: ldebug.c,v 2.9 2004/10/04 19:04:34 roberto Exp roberto $
** Debug Interface
** See Copyright Notice in lua.h
*/
@ -315,6 +315,11 @@ static Instruction luaG_symbexec (const Proto *pt, int lastpc, int reg) {
if (getBMode(op) == OpArgR) {
int dest = pc+1+b;
check(0 <= dest && dest < pt->sizecode);
if (dest > 0) {
/* cannot jump to a setlist count */
const Instruction d = pt->code[dest-1];
check(!(GET_OPCODE(d) == OP_SETLIST && GETARG_C(d) == 0));
}
}
break;
}
@ -356,7 +361,8 @@ static Instruction luaG_symbexec (const Proto *pt, int lastpc, int reg) {
break;
}
case OP_TFORLOOP: {
checkreg(pt, a+5); /* space for control variables */
check(c >= 1); /* at least one result (control variable) */
checkreg(pt, a+3+c); /* space for results */
if (reg >= a+3) last = pc; /* affect all regs above its call base */
break;
}