82 lines
2.0 KiB
C++
82 lines
2.0 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/handle_errors.hpp>
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# include <boost/leaf/pred.hpp>
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#endif
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#include "_test_res.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 ResType>
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ResType f( bool succeed )
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{
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if( succeed )
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return 42;
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else
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return make_error_code(errc_a::a0);
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}
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template <class ResType>
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ResType g( bool succeed )
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{
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if( auto r = f<ResType>(succeed) )
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return r;
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else
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return leaf::error_id(r.error()).load(info<42>{42}).to_error_code();
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}
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template <class ResType>
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void test()
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{
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{
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ResType r = leaf::try_handle_some(
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[]
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{
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return g<ResType>(true);
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} );
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BOOST_TEST(r);
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BOOST_TEST_EQ(r.value(), 42);
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}
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{
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int called = 0;
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ResType r = leaf::try_handle_some(
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[&]
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{
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auto r = g<ResType>(false);
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BOOST_TEST(!r);
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auto ec = r.error();
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BOOST_TEST_EQ(ec.message(), "LEAF error");
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BOOST_TEST(!std::strcmp(ec.category().name(),"LEAF error"));
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return r;
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},
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[&]( info<42> const & x, leaf::match<leaf::condition<cond_x>, cond_x::x00> ec )
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{
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called = 1;
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BOOST_TEST_EQ(x.value, 42);
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return ec.matched;
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} );
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BOOST_TEST(!r);
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BOOST_TEST_EQ(r.error(), make_error_code(errc_a::a0));
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BOOST_TEST(called);
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}
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}
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int main()
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{
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test<test_res<int, std::error_code>>();
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test<test_res<int const, std::error_code>>();
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test<test_res<int, std::error_code> const>();
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test<test_res<int const, std::error_code> const>();
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return boost::report_errors();
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}
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