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101 lines
2.8 KiB
C++
101 lines
2.8 KiB
C++
// Copyright (c) 2018-2025 Jean-Louis Leroy
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// Distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <iostream>
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#include <stdexcept>
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#include <string>
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#include <type_traits>
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#include <any>
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#include <boost/openmethod.hpp>
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#include <boost/openmethod/interop/std_shared_ptr.hpp>
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#include <boost/openmethod/interop/std_unique_ptr.hpp>
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#include <boost/openmethod/initialize.hpp>
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#include <boost/openmethod/policies/vptr_vector.hpp>
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#include "test_util.hpp"
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#define BOOST_TEST_MODULE openmethod
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#include <boost/test/unit_test.hpp>
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using namespace boost::openmethod;
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namespace TEST_NS {
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using namespace test_matrices;
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struct test_registry : test_registry_<__COUNTER__> {};
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BOOST_OPENMETHOD_CLASSES(matrix, dense_matrix, test_registry);
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BOOST_OPENMETHOD(
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times, (virtual_<const matrix&>, virtual_<const matrix&>),
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std::unique_ptr<matrix>, test_registry);
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BOOST_OPENMETHOD_OVERRIDE(
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times, (const dense_matrix&, const matrix&),
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std::unique_ptr<dense_matrix>) {
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return std::make_unique<dense_matrix>();
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}
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BOOST_OPENMETHOD_OVERRIDE(
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times, (const matrix&, const dense_matrix&), std::unique_ptr<matrix>) {
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return std::make_unique<matrix>();
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}
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static_assert(std::is_same_v<
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detail::virtual_type<std::unique_ptr<matrix>, test_registry>, matrix>);
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BOOST_AUTO_TEST_CASE(covariant_return_type) {
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auto compiler = boost::openmethod::initialize<test_registry>(n2216());
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BOOST_TEST(compiler.report.ambiguous == 0u);
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// test_registry: use covariant return types to resolve ambiguity.
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dense_matrix left, right;
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auto result = times(left, right);
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BOOST_TEST(result->type == DENSE_MATRIX);
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}
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} // namespace TEST_NS
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namespace TEST_NS {
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using namespace test_matrices;
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struct test_registry : test_registry_<__COUNTER__> {};
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BOOST_OPENMETHOD_CLASSES(matrix, dense_matrix, test_registry);
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BOOST_OPENMETHOD(
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times, (virtual_<const matrix&>, virtual_<const matrix&>), string_pair,
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test_registry);
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BOOST_OPENMETHOD_OVERRIDE(times, (const matrix&, const matrix&), string_pair) {
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return string_pair(MATRIX_MATRIX, NONE);
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}
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BOOST_OPENMETHOD_OVERRIDE(
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times, (const dense_matrix&, const matrix&), string_pair) {
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return string_pair(DENSE_MATRIX, MATRIX_MATRIX);
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}
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BOOST_OPENMETHOD_OVERRIDE(
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times, (const matrix&, const dense_matrix&), string_pair) {
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return string_pair(MATRIX_DENSE, MATRIX_MATRIX);
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}
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BOOST_AUTO_TEST_CASE(pick_any_ambiguous) {
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auto compiler = boost::openmethod::initialize<test_registry>(n2216());
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BOOST_TEST(compiler.report.ambiguous == 1u);
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// test_registry: use covariant return types to resolve ambiguity.
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dense_matrix left, right;
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auto result = times(left, right);
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BOOST_TEST(result.first == MATRIX_DENSE);
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BOOST_TEST(result.second == MATRIX_MATRIX);
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}
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} // namespace TEST_NS
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