libcruft-util/stringid.cpp

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Copyright 2014 Danny Robson <danny@nerdcruft.net>
 */

#include "stringid.hpp"

#include <stdexcept>

using cruft::stringid;


//-----------------------------------------------------------------------------
stringid::id_t
stringid::add (std::string key) {
    auto pos = m_map.find (key);
    if (pos != m_map.end ())
        throw std::invalid_argument ("duplicate stringid key");

    id_t id = m_map.size ();
    m_map.insert ({ std::move (key), id });
    return id;
}


//-----------------------------------------------------------------------------
stringid::id_t
stringid::find (const std::string &key) const {
    auto pos = m_map.find (key);
    if (pos == m_map.end ())
        throw std::out_of_range ("invalid stringid key");

    return pos->second;
}


//-----------------------------------------------------------------------------
void
stringid::clear (void) {
    m_map.clear ();
}