135 lines
3.2 KiB
C++
135 lines
3.2 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/capture.hpp>
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# include <boost/leaf/result.hpp>
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# include <boost/leaf/handle_errors.hpp>
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#endif
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#include "_test_ec.hpp"
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#include "lightweight_test.hpp"
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namespace leaf = boost::leaf;
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template <int> struct info { int value; };
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template <class F>
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void test( F f )
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{
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{
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int c=0;
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auto r = f();
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leaf::try_handle_all(
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[&r]() -> leaf::result<void>
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{
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BOOST_LEAF_CHECK(std::move(r));
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return { };
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},
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[&c]( info<1> const & x )
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{
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BOOST_TEST_EQ(x.value, 1);
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BOOST_TEST_EQ(c, 0);
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c = 1;
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},
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[&c]
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{
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BOOST_TEST_EQ(c, 0);
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c = 2;
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} );
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BOOST_TEST_EQ(c, 1);
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}
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{
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int c=0;
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auto r = f();
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leaf::try_handle_all(
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[&r]() -> leaf::result<void>
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{
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BOOST_LEAF_CHECK(std::move(r));
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return { };
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},
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[&c]( info<2> const & x )
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{
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BOOST_TEST_EQ(x.value, 2);
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BOOST_TEST_EQ(c, 0);
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c = 1;
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},
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[&c]
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{
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BOOST_TEST_EQ(c, 0);
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c = 2;
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} );
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BOOST_TEST_EQ(c, 2);
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}
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{
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auto r = f();
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int what = leaf::try_handle_all(
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[&r]() -> leaf::result<int>
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{
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BOOST_LEAF_CHECK(std::move(r));
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return 0;
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},
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[]( info<1> const & x )
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{
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BOOST_TEST_EQ(x.value, 1);
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return 1;
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},
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[]
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{
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return 2;
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} );
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BOOST_TEST_EQ(what, 1);
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}
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{
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auto r = f();
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int what = leaf::try_handle_all(
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[&r]() -> leaf::result<int>
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{
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BOOST_LEAF_CHECK(std::move(r));
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return 0;
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},
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[]( info<2> const & x )
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{
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BOOST_TEST_EQ(x.value, 2);
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return 1;
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},
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[]
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{
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return 2;
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} );
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BOOST_TEST_EQ(what, 2);
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}
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}
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int main()
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{
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test( []
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{
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return leaf::capture(
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std::make_shared<leaf::leaf_detail::polymorphic_context_impl<leaf::context<std::error_code, info<1>, info<2>, info<3>>>>(),
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[]() -> leaf::result<int>
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{
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return leaf::new_error(errc_a::a0, info<1>{1}, info<3>{3});
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} );
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} );
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test( []
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{
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return leaf::capture(
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std::make_shared<leaf::leaf_detail::polymorphic_context_impl<leaf::context<std::error_code, info<1>, info<2>, info<3>>>>(),
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[]() -> leaf::result<void>
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{
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return leaf::new_error(errc_a::a0, info<1>{1}, info<3>{3});
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} );
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} );
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return boost::report_errors();
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}
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