libcruft-util/cruft/util/backtrace.hpp

/*
 * 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 2019, Danny Robson <danny@nerdcruft.net>
 */

#pragma once

#include <vector>
#include <iosfwd>
#include <fmt/core.h>


///////////////////////////////////////////////////////////////////////////////
namespace cruft {
    class backtrace {
    public:
        backtrace (void);

        const auto& frames(void) const { return m_frames; }

    private:
        std::vector<void *> m_frames;
    };

    std::ostream&
    operator<< (std::ostream&, backtrace const&);
}

template <>
struct fmt::formatter<cruft::backtrace> {
    constexpr format_parse_context::iterator
    parse (format_parse_context &ctx)
    {
        return ctx.begin ();
    }

    format_context::iterator
    format (cruft::backtrace const&, format_context &ctx) const;
};