82 lines
3.4 KiB
C++
82 lines
3.4 KiB
C++
// __ _____ _____ _____
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// __| | __| | | | JSON for Modern C++ (supporting code)
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// | | |__ | | | | | | version 3.11.1
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// |_____|_____|_____|_|___| https://github.com/nlohmann/json
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//
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// SPDX-FileCopyrightText: 2013-2022 Niels Lohmann <https://nlohmann.me>
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// SPDX-License-Identifier: MIT
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#include "doctest_compatibility.h"
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// disable -Wnoexcept due to struct pod_bis
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DOCTEST_GCC_SUPPRESS_WARNING_PUSH
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DOCTEST_GCC_SUPPRESS_WARNING("-Wnoexcept")
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#include <nlohmann/json.hpp>
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using nlohmann::json;
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namespace
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{
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enum test
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{
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};
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struct pod {};
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struct pod_bis {};
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void to_json(json& /*unused*/, pod /*unused*/) noexcept;
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void to_json(json& /*unused*/, pod_bis /*unused*/);
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void from_json(const json& /*unused*/, pod /*unused*/) noexcept;
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void from_json(const json& /*unused*/, pod_bis /*unused*/);
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void to_json(json& /*unused*/, pod /*unused*/) noexcept {}
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void to_json(json& /*unused*/, pod_bis /*unused*/) {}
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void from_json(const json& /*unused*/, pod /*unused*/) noexcept {}
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void from_json(const json& /*unused*/, pod_bis /*unused*/) {}
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static_assert(noexcept(json{}), "");
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static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), 2)), "");
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static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), 2.5)), "");
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static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), true)), "");
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static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), test{})), "");
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static_assert(noexcept(nlohmann::to_json(std::declval<json&>(), pod{})), "");
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static_assert(!noexcept(nlohmann::to_json(std::declval<json&>(), pod_bis{})), "");
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static_assert(noexcept(json(2)), "");
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static_assert(noexcept(json(test{})), "");
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static_assert(noexcept(json(pod{})), "");
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static_assert(noexcept(std::declval<json&>().get<pod>()), "");
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static_assert(!noexcept(std::declval<json&>().get<pod_bis>()), "");
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static_assert(noexcept(json(pod{})), "");
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} // namespace
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TEST_CASE("runtime checks")
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{
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SECTION("nothrow-copy-constructible exceptions")
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{
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// for ERR60-CPP (https://github.com/nlohmann/json/issues/531):
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// Exceptions should be nothrow-copy-constructible. However, compilers
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// treat std::runtime_exception differently in this regard. Therefore,
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// we can only demand nothrow-copy-constructibility for our exceptions
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// if std::runtime_exception is.
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CHECK(std::is_nothrow_copy_constructible<json::exception>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
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CHECK(std::is_nothrow_copy_constructible<json::parse_error>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
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CHECK(std::is_nothrow_copy_constructible<json::invalid_iterator>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
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CHECK(std::is_nothrow_copy_constructible<json::type_error>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
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CHECK(std::is_nothrow_copy_constructible<json::out_of_range>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
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CHECK(std::is_nothrow_copy_constructible<json::other_error>::value == std::is_nothrow_copy_constructible<std::runtime_error>::value);
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}
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SECTION("silence -Wunneeded-internal-declaration errors")
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{
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json j2;
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to_json(j2, pod());
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to_json(j2, pod_bis());
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from_json(j2, pod());
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from_json(j2, pod_bis());
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}
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}
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DOCTEST_GCC_SUPPRESS_WARNING_POP
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#include "print_meta.cpp" // NOLINT(bugprone-suspicious-include)
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