| // __ _____ _____ _____ |
| // __| | __| | | | JSON for Modern C++ |
| // | | |__ | | | | | | version 3.12.0 |
| // |_____|_____|_____|_|___| https://github.com/nlohmann/json |
| // |
| // SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me> |
| // SPDX-License-Identifier: MIT |
| |
| // This file makes sure that none of the internal JSON_HEDLEY_* macros (vendored |
| // from https://nemequ.github.io/hedley/, see |
| // include/nlohmann/thirdparty/hedley/hedley.hpp) leak into the including |
| // translation unit. include/nlohmann/detail/macro_unscope.hpp is supposed to |
| // #undef every JSON_HEDLEY_* macro (via hedley_undef.hpp) once json.hpp has |
| // been fully processed. See https://github.com/nlohmann/json/issues/5408, |
| // where JSON_HEDLEY_PRAGMA, JSON_HEDLEY_PREDICT_TRUE, JSON_HEDLEY_PREDICT_FALSE, |
| // and JSON_HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE escaped this cleanup because |
| // hedley_undef.hpp had no matching #undef for them. |
| // |
| // hedley_undef_checks.inc (included below) is generated at CMake configure/ |
| // build time by cmake/scripts/gen_hedley_undef_check.cmake, which derives the |
| // full list of JSON_HEDLEY_* macro names directly from hedley.hpp. That way |
| // this test covers every macro Hedley actually defines -- not a hardcoded |
| // snapshot that would silently go stale the next time `make update_hedley` |
| // runs -- and can never drift from the vendored header. |
| |
| #include "doctest_compatibility.h" |
| |
| #include <nlohmann/json.hpp> |
| |
| TEST_CASE("JSON_HEDLEY macros do not leak after including json.hpp") |
| { |
| #include "hedley_undef_checks.inc" |
| CHECK(true); // keep an assertion when nothing leaked |
| } |
