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https://github.com/nlohmann/json.git
synced 2026-09-24 22:05:16 +01:00
Niels Lohmann
574d98ad93
The macro changes the body of the initializer-list constructor and adds a to_json_tuple_impl overload, both with the same mangled names in either mode, so mixing translation units silently picked one definition. Encode it in the inline namespace as `_bics`, as JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON does with `_ldvcmp`. The macro is new in the unreleased 3.13.0, so no existing namespace name changes. - Move the macro's default into abi_macros.hpp so json_fwd.hpp computes the same namespace, and keep it defined under JSON_TEST_KEEP_MACROS. - Check the tag in the ABI config tests and in the unit test. - List `_bics` (and the missing `_dp`) in the namespace docs and in the natvis generator; regenerate nlohmann_json.natvis. - Replace the "define it consistently" warning with an ABI note. Suggested by @gregmarr in the review of #5544. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
// __ _____ _____ _____
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// __| | __| | | | JSON for Modern C++ (supporting code)
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// | | |__ | | | | | | version 3.12.0
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// |_____|_____|_____|_|___| https://github.com/nlohmann/json
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//
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// SPDX-FileCopyrightText: 2013-2026 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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#include "config.hpp"
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#define NLOHMANN_JSON_NAMESPACE_NO_VERSION 1
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#include <nlohmann/json_fwd.hpp>
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TEST_CASE("default namespace without version component")
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{
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// GCC 4.8 fails with regex_error
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#if !DOCTEST_GCC || DOCTEST_GCC >= DOCTEST_COMPILER(4, 9, 0)
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SECTION("namespace matches expectation")
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{
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std::string expected = "nlohmann::json_abi";
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#if JSON_DIAGNOSTICS
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expected += "_diag";
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#endif
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#if JSON_DIAGNOSTIC_POSITIONS
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expected += "_dp";
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#endif
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#if JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON
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expected += "_ldvcmp";
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#endif
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#if JSON_BRACE_INIT_COPY_SEMANTICS
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expected += "_bics";
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#endif
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expected += "::basic_json";
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// fallback for Clang
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const std::string ns{STRINGIZE(NLOHMANN_JSON_NAMESPACE) "::basic_json"};
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CHECK(namespace_name<nlohmann::json>(ns) == expected);
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}
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#endif
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}
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