// Copyright (c) 2018-2021 Emil Dotchevski and Reverge Studios, Inc.

// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
#   include "leaf.hpp"
#else
#   include <boost/leaf/context.hpp>
#   include <boost/leaf/handle_errors.hpp>
#   include <boost/leaf/result.hpp>
#endif

#include "lightweight_test.hpp"
#include <iostream>

namespace leaf = boost::leaf;

template <int>
struct info
{
    int value;
};

template <class Ctx>
leaf::result<int> f( Ctx & ctx )
{
    auto active_context = activate_context(ctx);
    return leaf::new_error( info<1>{1} );
}

int main()
{
    auto handlers = std::make_tuple(
        []( info<1> x )
        {
            BOOST_TEST(x.value==1);
            return 1;
        },
        []( leaf::verbose_diagnostic_info const & info )
        {
            std::cout << info;
            return 2;
        } );

    auto ctx = leaf::make_context(handlers);

    {
        leaf::result<int> r1 = f(ctx);
        BOOST_TEST(!r1);

        int r2 = ctx.handle_error<int>(
            r1.error(),
            std::move(handlers));
        BOOST_TEST_EQ(r2, 1);
    }

    return boost::report_errors();
}