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BUG: "lua_getstring" may create a new string, so should check GC

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Roberto Ierusalimschy 1998-01-27 17:13:45 -02:00
parent 8622dc18bf
commit b3b7cf7335
2 changed files with 8 additions and 1 deletions
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5
bugs
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@ -24,3 +24,8 @@ Tue Jan 27 15:27:49 EDT 1998
>> formats like "%020d" were considered too big (3 algarithms); moreover, >> formats like "%020d" were considered too big (3 algarithms); moreover,
>> some sistems limit printf to at most 500 chars, so we can limit sizes >> some sistems limit printf to at most 500 chars, so we can limit sizes
>> to 2 digits (99). >> to 2 digits (99).
** lapi.c
Tue Jan 27 17:12:36 EDT 1998
>> "lua_getstring" may create a new string, so should check GC

4
lapi.c
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@ -1,5 +1,5 @@
/* /*
** $Id: lapi.c,v 1.18 1998/01/07 16:26:48 roberto Exp roberto $ ** $Id: lapi.c,v 1.19 1998/01/09 14:44:55 roberto Exp roberto $
** Lua API ** Lua API
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -287,6 +287,7 @@ double lua_getnumber (lua_Object object)
char *lua_getstring (lua_Object object) char *lua_getstring (lua_Object object)
{ {
luaC_checkGC(); /* "tostring" may create a new string */
if (object == LUA_NOOBJECT || tostring(Address(object))) if (object == LUA_NOOBJECT || tostring(Address(object)))
return NULL; return NULL;
else return (svalue(Address(object))); else return (svalue(Address(object)));
@ -341,6 +342,7 @@ void lua_pushCclosure (lua_CFunction fn, int n)
fvalue(L->stack.top) = fn; fvalue(L->stack.top) = fn;
incr_top; incr_top;
luaV_closure(n); luaV_closure(n);
luaC_checkGC();
} }
void lua_pushusertag (void *u, int tag) void lua_pushusertag (void *u, int tag)