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113 lines
2.5 KiB
C++
113 lines
2.5 KiB
C++
// Copyright (c) 2018-2020 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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#include <boost/leaf/handle_error.hpp>
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#include <boost/leaf/pred.hpp>
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#include <boost/leaf/result.hpp>
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#include <exception>
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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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enum class my_error { e1=1, e2, e3 };
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struct my_exception: std::exception
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{
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int value;
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bool operator==(int);
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};
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static_assert(!leaf::leaf_detail::handler_argument_traits<leaf::match<my_error, my_error::e1>>::requires_catch, "requires_catch deduction error");
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#if __cplusplus >= 201703L
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static_assert(leaf::leaf_detail::handler_argument_traits<leaf::match<my_exception, 42>>::requires_catch, "requires_catch deduction error");
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#endif
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template <class M, class E>
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bool test(E const * e )
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{
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if( M::evaluate(e) )
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{
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M m(e);
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BOOST_TEST_EQ(e, &m.matched());
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return true;
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}
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else
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return false;
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}
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int main()
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{
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{
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int e = 42;
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BOOST_TEST(( test<leaf::match<int, 42>>(&e) ));
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BOOST_TEST(( !test<leaf::match<int, 41>>(&e) ));
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BOOST_TEST(( test<leaf::match<int, 42, 41>>(&e) ));
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}
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{
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my_error e = my_error::e1;
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BOOST_TEST(( test<leaf::match<my_error, my_error::e1>>(&e) ));
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BOOST_TEST(( !test<leaf::match<my_error, my_error::e2>>(&e) ));
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BOOST_TEST(( test<leaf::match<my_error, my_error::e2, my_error::e1>>(&e) ));
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}
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{
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std::error_code e = errc_a::a0;
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BOOST_TEST(( test<leaf::match<leaf::condition<cond_x>, cond_x::x00>>(&e) ));
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BOOST_TEST(( !test<leaf::match<leaf::condition<cond_x>, cond_x::x11>>(&e) ));
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BOOST_TEST(( test<leaf::match<leaf::condition<cond_x>, cond_x::x11, cond_x::x00>>(&e) ));
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#if __cplusplus >= 201703L
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BOOST_TEST(( test<leaf::match<std::error_code, errc_a::a0>>(&e) ));
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BOOST_TEST(( !test<leaf::match<std::error_code, errc_a::a2>>(&e) ));
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BOOST_TEST(( test<leaf::match<std::error_code, errc_a::a2, errc_a::a0>>(&e) ));
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#endif
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}
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{
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int r = leaf::try_handle_all(
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[]() -> leaf::result<int>
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{
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return leaf::new_error(my_error::e1);
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},
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[]( leaf::match<my_error, my_error::e1> )
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{
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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(r, 1);
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}
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{
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int r = leaf::try_handle_all(
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[]() -> leaf::result<int>
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{
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return leaf::new_error(my_error::e1);
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},
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[]( leaf::match<my_error, my_error::e2> )
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{
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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(r, 2);
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}
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return boost::report_errors();
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}
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