7f19d64164
git-subtree-dir: third_party/immer git-subtree-split: ad3e3556d38bb75966dd24c61a774970a7c7957e
56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
//
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// immer: immutable data structures for C++
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// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
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//
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// This software is distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
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//
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#pragma once
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#include <immer/config.hpp>
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#include <tuple>
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#include <utility>
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namespace immer {
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namespace detail {
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namespace rbts {
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template <typename Deriv>
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struct visitor_base
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{
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template <typename... Args>
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static decltype(auto) visit_node(Args&&... args)
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{
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IMMER_UNREACHABLE;
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}
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template <typename... Args>
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static decltype(auto) visit_relaxed(Args&&... args)
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{
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return Deriv::visit_inner(std::forward<Args>(args)...);
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}
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template <typename... Args>
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static decltype(auto) visit_regular(Args&&... args)
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{
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return Deriv::visit_inner(std::forward<Args>(args)...);
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}
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template <typename... Args>
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static decltype(auto) visit_inner(Args&&... args)
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{
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return Deriv::visit_node(std::forward<Args>(args)...);
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}
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template <typename... Args>
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static decltype(auto) visit_leaf(Args&&... args)
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{
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return Deriv::visit_node(std::forward<Args>(args)...);
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}
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};
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} // namespace rbts
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} // namespace detail
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} // namespace immer
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