141 lines
3.5 KiB
C++
141 lines
3.5 KiB
C++
// Copyright 2018-2022 Emil Dotchevski and Reverge Studios, Inc.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
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# include "leaf.hpp"
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#else
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# include <boost/leaf/config.hpp>
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# include <boost/leaf/handle_errors.hpp>
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# include <boost/leaf/result.hpp>
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#endif
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#include "lightweight_test.hpp"
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#include <sstream>
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namespace leaf = boost::leaf;
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template <int I>
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struct info
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{
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friend std::ostream & operator<<( std::ostream & os, info const & )
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{
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return os << "printed info<" << I << '>';
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}
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};
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int main()
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{
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leaf::try_handle_all(
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[]() -> leaf::result<void>
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{
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return leaf::try_handle_some(
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[]() -> leaf::result<void>
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{
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leaf::try_handle_all(
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[]() -> leaf::result<void>
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{
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return leaf::new_error(info<1>{});
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},
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[]
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{
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} );
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return leaf::new_error(info<2>{});
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},
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[]( info<1> )
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{
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} );
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},
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[]( leaf::verbose_diagnostic_info const & di )
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{
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#if BOOST_LEAF_CFG_STD_STRING
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std::ostringstream st;
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st << di;
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std::string s = st.str();
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#if BOOST_LEAF_CFG_DIAGNOSTICS
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BOOST_TEST_NE(s.find("info<2>"), s.npos);
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#endif
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std::cout << s;
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#endif
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} );
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#ifndef BOOST_LEAF_NO_EXCEPTIONS
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std::cout << __LINE__ << " ----\n";
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leaf::try_catch(
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[]
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{
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leaf::try_catch(
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[]
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{
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leaf::try_catch(
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[]
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{
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leaf::throw_exception(info<1>{});
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},
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[]
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{
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} );
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leaf::throw_exception(info<2>{});
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},
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[]( info<1> )
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{
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} );
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},
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[]( leaf::verbose_diagnostic_info const & di )
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{
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#if BOOST_LEAF_CFG_STD_STRING
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std::ostringstream st;
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st << di;
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std::string s = st.str();
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#if BOOST_LEAF_CFG_DIAGNOSTICS
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BOOST_TEST_NE(s.find("info<2>"), s.npos);
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#endif
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std::cout << s;
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#endif
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} );
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std::cout << __LINE__ << " ----\n";
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leaf::try_catch(
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[]
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{
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leaf::try_catch(
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[]
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{
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leaf::try_catch(
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[]
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{
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auto load = leaf::on_error(info<1>{});
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throw std::exception();
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},
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[]
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{
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} );
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auto load = leaf::on_error(info<2>{});
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throw std::exception();
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},
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[]( info<1> )
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{
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} );
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},
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[]( leaf::verbose_diagnostic_info const & di )
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{
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#if BOOST_LEAF_CFG_STD_STRING
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std::ostringstream st;
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st << di;
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std::string s = st.str();
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#if BOOST_LEAF_CFG_DIAGNOSTICS
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BOOST_TEST_NE(s.find("info<2>"), s.npos);
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#endif
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std::cout << s;
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#endif
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} );
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#endif
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return boost::report_errors();
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}
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