60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
// Copyright (c) 2018-2021 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/context.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 <iostream>
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namespace leaf = boost::leaf;
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template <int>
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struct info
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{
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int value;
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};
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template <class Ctx>
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leaf::result<int> f( Ctx & ctx )
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{
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auto active_context = activate_context(ctx);
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return leaf::new_error( info<1>{1} );
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}
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int main()
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{
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auto handlers = std::make_tuple(
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[]( info<1> x )
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{
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BOOST_TEST(x.value==1);
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return 1;
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},
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[]( leaf::verbose_diagnostic_info const & info )
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{
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std::cout << info;
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return 2;
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} );
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auto ctx = leaf::make_context(handlers);
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{
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leaf::result<int> r1 = f(ctx);
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BOOST_TEST(!r1);
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int r2 = ctx.handle_error<int>(
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r1.error(),
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std::move(handlers));
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BOOST_TEST_EQ(r2, 1);
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}
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return boost::report_errors();
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}
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