Function MakeContainerMetatable

library/LuaTypes.cpp:1655–1697

* Make a container-style object metatable. */

 * Make a container-style object metatable.
 */
static void MakeContainerMetatable(lua_State *state, const container_identity *type,
                                   const type_identity *item, int count, const type_identity *ienum)
{
    int base = lua_gettop(state);

    MakeMetatable(state, type, "container");
    SetPtrMethods(state, base+1, base+2);

    // Update the type name using full info
    lua_pushstring(state, type->getFullName(item).c_str());
    lua_dup(state);
    lua_setfield(state, base+1, "__metatable");
    lua_setfield(state, base+1, "_type");

    lua_pushlightuserdata(state, const_cast<type_identity*>(item));
    lua_setfield(state, base+1, "_field_identity");

    if (count >= 0)
    {
        lua_pushinteger(state, count);
        lua_setfield(state, base+1, "_count");
    }

    SetContainerMethod(state, base+1, base+2, meta_container_len, "__len", type, item, count);
    SetContainerMethod(state, base+1, base+2, meta_container_index, "__index", type, item, count);
    SetContainerMethod(state, base+1, base+2, meta_container_newindex, "__newindex", type, item, count);

    SetContainerMethod(state, base+1, base+2, meta_container_field_reference, "_field", type, item, count);

    AddContainerMethodFun(state, base+1, base+2, method_container_resize, "resize", type, item, count);
    AddContainerMethodFun(state, base+1, base+2, method_container_erase, "erase", type, item, count);
    AddContainerMethodFun(state, base+1, base+2, method_container_insert, "insert", type, item, count);

    // push the index table
    AttachEnumKeys(state, base+1, base+2, ienum);

    PushContainerMethod(state, base+1, base+3, meta_container_next, type, item, count);
    SetPairsMethod(state, base+1, "__pairs");
    PushContainerMethod(state, base+1, base+3, meta_container_nexti, type, item, count);
    SetPairsMethod(state, base+1, "__ipairs");

    lua_pop(state, 1);
}

/*
 * Metatable construction identity methods.