# std::experimental::reflect::ObjectSequence

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< cpp‎ | experimental‎ | reflect

Defined in header `<experimental/reflect>` |  |
template< class T > concept ObjectSequence = Object<T> && /* see below */; |  | (reflection TS)

The `ObjectSequence` concept is satisfied by meta-object sequence types.

A meta-object sequence type is a meta-object type that is obtained from a meta-object operation that generates a sequence, e.g. `get_data_members`. Each element of a meta-object sequence type is a meta-object type.

### Example

Run this code

    #include<cmath>
    #include<experimental/reflect>
    #include<tuple>
    #include<type_traits>

    namespace reflect = std::experimental::reflect;

    template<reflect::Typed... Ms>
    using tuple_from_seq_t = std::tuple<reflect::get_reflected_type_t<
        reflect::get_type_t<Ms>>...>;

    template<reflect::Record T>
    using collect_tuple = reflect::unpack_sequence_t<
        tuple_from_seq_t,
        reflect::get_data_members_t<T>>;

    int main()
    {
        static_assert(reflect::ObjectSequence<
                          reflect::get_data_members<reflexpr(std::div_t)>>, "");
        static_assert(std::is_same<collect_tuple<reflexpr(std::div_t)>,
                                   std::tuple<int, int>>::value, "");
    }

### See also

| This section is incomplete Reason: templatization

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