Function lua_getmetatable

Source/Misc/lua/src/lua.c:2436–2462

LUA_API int lua_getmetatable (lua_State *L, int objindex) {
const TValue *obj;
Table *mt = NULL;
int res;
lua_lock(L);
obj = index2adr(L, objindex);
switch (ttype(obj)) {
case LUA_TTABLE:
mt = hvalue(obj)->metatable;
break;
case LUA_TUSERDATA:
mt = uvalue(obj)->metatable;
break;
default:
mt = G(L)->mt[ttype(obj)];
break;
}
if (mt == NULL)
res = 0;
else {
sethvalue(L, L->top, mt);
api_incr_top(L);
res = 1;
}
lua_unlock(L);
return res;
}


LUA_API void lua_getfenv (lua_State *L, int idx) {