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bug: cannot reuse a dying upvalue

This commit is contained in:
Roberto Ierusalimschy 2017-05-24 15:54:54 -03:00
parent a9dbc2d641
commit be0d951be8
1 changed files with 2 additions and 2 deletions
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4
lfunc.c
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@ -1,5 +1,5 @@
/* /*
** $Id: lfunc.c,v 2.47 2017/04/11 18:41:09 roberto Exp roberto $ ** $Id: lfunc.c,v 2.48 2017/04/30 20:43:26 roberto Exp roberto $
** Auxiliary functions to manipulate prototypes and closures ** Auxiliary functions to manipulate prototypes and closures
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -63,7 +63,7 @@ UpVal *luaF_findupval (lua_State *L, StkId level) {
lua_assert(isintwups(L) || L->openupval == NULL); lua_assert(isintwups(L) || L->openupval == NULL);
while ((p = *pp) != NULL && p->v >= level) { while ((p = *pp) != NULL && p->v >= level) {
lua_assert(upisopen(p)); lua_assert(upisopen(p));
if (p->v == level) /* found a corresponding upvalue? */ if (p->v == level && !isdead(G(L), p)) /* corresponding upvalue? */
return p; /* return it */ return p; /* return it */
pp = &p->u.open.next; pp = &p->u.open.next;
} }