[-1, +1, e]
void lua_gettable (lua_State *L, int index);
Pushes onto the stack the value t[k] ,
where t is the value at the given valid index
and k is the value at the top of the stack.
This function pops the key from the stack
(putting the resulting value in its place).
As in Lua, this function may trigger a metamethod
for the "index" event (see §2.8). |