Roland Conybeare
820f431d66
git-subtree-dir: xo-reflect git-subtree-mainline:8111f3846cgit-subtree-split:5dce303fe1
71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
/** @file reflect_struct.hpp
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*
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* Author: Roland Conybeare
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**/
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#pragma once
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#include "StructReflector.hpp"
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#include "xo/reflectutil/reflect_struct_info.hpp"
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namespace xo {
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namespace reflect {
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namespace detail {
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/**
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* @pre reflect_struct_member<T,MemberIx> will separately
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* have been specialized for T.
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* See discussion in [reflect_struct_info.hpp]
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*
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*
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**/
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template <typename T,
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std::size_t MemberIx,
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std::size_t N_Member>
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struct sr_member_helper {
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/** reflect members starting from member with index number @tparam MemberIx
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*
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* @pre Members [0,..,MemberIx-1] must be already represented in @p *p_sr
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**/
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static void add_members_from(StructReflector<T> * p_sr) {
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const auto & member_info
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= reflect_struct_member<T, MemberIx>().get();
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p_sr->reflect_member(member_info.member_name_.c_str(),
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member_info.member_addr_);
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/** reflect remaining members **/
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sr_member_helper<T, MemberIx+1, N_Member>::add_members_from(p_sr);
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}
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};
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template <typename T, std::size_t MemberIx>
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struct sr_member_helper<T, MemberIx, MemberIx /*N_Member*/> {
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/** base case -- all members have been refleccted **/
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static void add_members_from(StructReflector<T> *) {}
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};
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} /*namespace detail*/
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/** It's awkward to have Reflect::reflect<>() do the right thing,
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* because there's no way to specialize on whether a type T is a struct.
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*
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* Use
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* xo::reflect::Reflect::reflect_struct<T>() instead
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**/
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template <typename T>
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TypeDescr reflect_struct() {
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StructReflector<T> sr;
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if (sr.is_incomplete())
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detail::sr_member_helper<T, 0, reflect_struct_traits<T>::n_members>::add_members_from(&sr);
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/* TODO: handle composition: where T inherits another reflected type */
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/* TODO: handle multiple inheritance **/
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return sr.td();
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}
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} /*namespace reflect*/
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} /*namespace xo*/
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/** end reflect_struct.hpp **/
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