80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 2014 Danny Robson <danny@nerdcruft.net>
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*/
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#include "stringid.hpp"
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#include <stdexcept>
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using cruft::stringid;
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///////////////////////////////////////////////////////////////////////////////
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stringid::id_t
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stringid::operator[] (std::string_view const &key)
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{
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if (auto const pos = m_map.find (key); pos != m_map.cend ())
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return pos->second;
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auto const &[pos, success] = m_map.emplace (key, m_map.size ());
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return pos->second;
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}
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///////////////////////////////////////////////////////////////////////////////
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stringid::id_t
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stringid::add (std::string key)
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{
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auto pos = m_map.find (key);
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if (pos != m_map.end ())
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throw std::invalid_argument ("duplicate stringid key");
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id_t id = m_map.size ();
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m_map.insert ({ std::move (key), id });
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return id;
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}
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///////////////////////////////////////////////////////////////////////////////
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stringid::id_t
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stringid::find (std::string_view const &key) const
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{
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auto pos = m_map.find (key);
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if (pos == m_map.end ())
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throw std::out_of_range ("invalid stringid key");
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return pos->second;
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}
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///////////////////////////////////////////////////////////////////////////////
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std::string const&
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stringid::key (id_t id) const&
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{
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for (auto const &[key, idx]: m_map)
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if (idx == id)
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return key;
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throw std::out_of_range ("stringid");
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}
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///////////////////////////////////////////////////////////////////////////////
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void
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stringid::clear (void) noexcept
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{
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m_map.clear ();
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}
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//-----------------------------------------------------------------------------
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std::size_t
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stringid::size (void) const noexcept
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{
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return m_map.size ();
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} |