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detail (setmetatable do not need to use a back GC barrier)

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Roberto Ierusalimschy
2013-09-11 17:15:31 -03:00
parent 2e2c109daf
commit 06156e7575
2 changed files with 3 additions and 7 deletions
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4
lapi.c
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@@ -1,5 +1,5 @@
/*
** $Id: lapi.c,v 2.187 2013/08/16 18:55:49 roberto Exp roberto $
** $Id: lapi.c,v 2.188 2013/08/27 18:53:35 roberto Exp roberto $
** Lua API
** See Copyright Notice in lua.h
*/
@@ -849,7 +849,7 @@ LUA_API int lua_setmetatable (lua_State *L, int objindex) {
case LUA_TTABLE: {
hvalue(obj)->metatable = mt;
if (mt) {
luaC_objbarrierback(L, gcvalue(obj), mt);
luaC_objbarrier(L, gcvalue(obj), mt);
luaC_checkfinalizer(L, gcvalue(obj), mt);
}
break;