Function IsValidInstance

engine/script/src/script.cpp:999–1015

    }

    bool IsValidInstance(lua_State* L) {
        int top = lua_gettop(L);
        (void)top;
        GetInstance(L);
        if (GetMetaFunction(L, -1, META_TABLE_IS_VALID, sizeof(META_TABLE_IS_VALID) - 1)) {
            lua_pushvalue(L, -2);
            lua_call(L, 1, 1);
            assert(top + 2 == lua_gettop(L));
            bool result = lua_toboolean(L, -1);
            lua_pop(L, 2);
            assert(top == lua_gettop(L));
            return result;
        }
        lua_pop(L, 1);
        assert(top == lua_gettop(L));
        return false;
    }

    void SetContextValue(HContext context)
    {