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Bug fix: Errors in finalizers need a valid 'pc' 

Errors in finalizers need a valid 'pc' to produce an error message,
even if the error is not propagated. Therefore, calls to the GC (which
may call finalizers) inside luaV_execute must save the 'pc'.
This commit is contained in:
Roberto Ierusalimschy 2020-07-13 16:35:32 -03:00
parent b202669d76
commit e37b96db04
1 changed files with 2 additions and 3 deletions
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5
lvm.c
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@ -1104,7 +1104,7 @@ void luaV_finishOp (lua_State *L) {
#define checkGC(L,c) \
{ luaC_condGC(L, L->top = (c), /* limit of live values */ \
{ luaC_condGC(L, (savepc(L), L->top = (c)), \
updatetrap(ci)); \
luai_threadyield(L); }
@ -1792,8 +1792,7 @@ void luaV_execute (lua_State *L, CallInfo *ci) {
vmbreak;
}
vmcase(OP_VARARGPREP) {
luaT_adjustvarargs(L, GETARG_A(i), ci, cl->p);
updatetrap(ci);
ProtectNT(luaT_adjustvarargs(L, GETARG_A(i), ci, cl->p));
if (trap) {
luaD_hookcall(L, ci);
L->oldpc = pc + 1; /* next opcode will be seen as a "new" line */