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// Copyright 2018-2024 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)
#include <boost/leaf/config.hpp>
#if BOOST_LEAF_CFG_STD_STRING
# include <sstream>
# include <iostream>
#endif
#if !BOOST_LEAF_CFG_CAPTURE
#include <iostream>
int main()
{
std::cout << "Unit test not applicable." << std::endl;
return 0;
}
#else
#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
# include "leaf.hpp"
#else
# include <boost/leaf/result.hpp>
# include <boost/leaf/handle_errors.hpp>
#endif
#include "lightweight_test.hpp"
namespace leaf = boost::leaf;
namespace
{
template <int>
struct err
{
static int count;
static int move_count;
err()
{
++count;
}
err( err const & )
{
++count;
}
err( err && )
{
++count;
++move_count;
}
~err()
{
--count;
}
};
template <int N> int err<N>::count = 0;
template <int N> int err<N>::move_count = 0;
}
int main()
{
#ifndef BOOST_LEAF_NO_EXCEPTIONS
{
leaf::result<void> r = leaf::try_capture_all([]() { throw std::runtime_error("x"); });
BOOST_TEST(!r);
int r1 = leaf::try_handle_all(
[&]() -> leaf::result<int>
{
BOOST_LEAF_CHECK(r);
return 0;
},
[](std::runtime_error const &)
{
return 1;
},
[]
{
return 2;
} );
BOOST_TEST_EQ(r1, 1);
}
#endif
{
leaf::result<void> r = leaf::try_capture_all(
[]() -> leaf::result<void>
{
return leaf::new_error(err<1>{}, err<2>{});
});
BOOST_TEST_EQ(err<1>::count, 1);
BOOST_TEST_EQ(err<2>::count, 1);
BOOST_TEST(!r);
int r1 = leaf::try_handle_all(
[&]() -> leaf::result<int>
{
BOOST_LEAF_CHECK(r);
return 0;
},
[](err<1>, err<2>)
{
return 1;
},
[]
{
return 2;
} );
BOOST_TEST_EQ(r1, 1);
}
BOOST_TEST_EQ(err<1>::count, 0);
BOOST_TEST_EQ(err<2>::count, 0);
{
leaf::result<int> r = leaf::try_capture_all(
[]() -> leaf::result<int>
{
return leaf::new_error(err<1>{}, err<2>{});
});
BOOST_TEST(!r);
BOOST_TEST_EQ(err<1>::count, 1);
BOOST_TEST_EQ(err<2>::count, 1);
int r1 = leaf::try_handle_all(
[&]() -> leaf::result<int>
{
BOOST_LEAF_CHECK(r);
return 0;
},
[](err<1>, err<2>)
{
return 1;
},
[]
{
return 2;
} );
BOOST_TEST_EQ(r1, 1);
}
BOOST_TEST_EQ(err<1>::count, 0);
BOOST_TEST_EQ(err<2>::count, 0);
return boost::report_errors();
}
#endif
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