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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)
#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
# include "leaf.hpp"
#else
# include <boost/leaf/on_error.hpp>
# include <boost/leaf/diagnostics.hpp>
# include <boost/leaf/result.hpp>
#endif
#if BOOST_LEAF_CFG_STD_STRING
# include <sstream>
# include <iostream>
#endif
#include "lightweight_test.hpp"
namespace leaf = boost::leaf;
int cleanup_count;
int global;
int get_global() noexcept
{
return global;
}
template <int>
struct info
{
int value;
};
leaf::error_id g()
{
global = 0;
auto load = leaf::on_error( []{++cleanup_count;}, []{ return info<42>{get_global()}; }, []{ return info<-42>{-42}; } );
global = 42;
return leaf::new_error();
}
leaf::error_id f()
{
auto load = leaf::on_error([]{++cleanup_count;});
return g();
}
int main()
{
int r = leaf::try_handle_all(
[]() -> leaf::result<int>
{
return f();
},
[]( info<42> const & i42, leaf::diagnostic_info const & di )
{
BOOST_TEST_EQ(i42.value, 42);
#if BOOST_LEAF_CFG_STD_STRING
std::ostringstream ss;
ss << di;
std::string s = ss.str();
std::cout << s << std::endl;
if( BOOST_LEAF_CFG_DIAGNOSTICS )
BOOST_TEST_NE(s.find("info<42>"), s.npos);
#endif
return 1;
},
[]
{
return 2;
} );
BOOST_TEST_EQ(r, 1);
BOOST_TEST_EQ(cleanup_count, 2);
return boost::report_errors();
}
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