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5062800d41c084d03ec88543d8bea1739e27e621
462
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Niels Lohmann
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d9a1b88953 |
Merge branch 'json-view/22-view-dump-fast' into json-view/15-view-bench
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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5cfafc2478 |
Merge branch 'json-view/19-edit-set' into json-view/21-images
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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9d45c82470 |
Merge branch 'json-view/16-view-simd' into json-view/19-edit-set
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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fc0d39ca9d |
Split the dump and comparison tests off unit-json_view.cpp
The MinGW linker of the Windows clang jobs cannot link object files with more
than 32767 sections ("relocation truncated to fit: IMAGE_REL_AMD64_REL32
against `.rdata'"). unit-json_view.cpp reaches that limit as the stack
grows, so its "json_view dump" and "json_view comparison" test cases move
into unit-json_view_dump.cpp. The test generator and has_duplicate_keys()
that both files use move into json_view_test_helpers.hpp.
The new file mentions JSON_HAS_CPP_17, so it is built for C++17 like the file
it was split from.
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
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Niels Lohmann
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752a891bb2 |
Merge branch 'json-view/22-view-dump-fast' into json-view/15-view-bench
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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14be5361ea |
Merge branch 'json-view/19-edit-set' into json-view/21-images
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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9144cd7bf0 |
Merge branch 'json-view/16-view-simd' into json-view/19-edit-set
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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48a1363551 |
Merge branch 'json-view/23-zmij' into json-view/08-view-builder
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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74aefc3486 |
Move custom object key tests out of unit-cbor.cpp and unit-msgpack.cpp (#5798)
The custom object key tests from #5328 instantiate a second basic_json specialization in unit-cbor.cpp and unit-msgpack.cpp. This pushed unit-msgpack.cpp.obj past 65535 sections in the clang (MinGW) jobs of the Windows workflow, and linking test-msgpack_cpp11 fails with "relocation truncated to fit: IMAGE_REL_AMD64_REL32 against `.rdata'". The GNU linker keeps the section an associative COMDAT section belongs to in 16 bits (x_associated in include/coff/internal.h), although big object files store 32 bits. In larger objects it therefore ties the jump tables of inline functions to the wrong function and discards them together with that function's duplicate. Move the four tests unchanged into unit-custom-object-key-type.cpp and document the limit in windows.yml. Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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af00f8e467 |
Add a timeout and a concurrency group to the json_view benchmarks
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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78bcd76a36 |
Merge branch 'json-view/22-view-dump-fast' into json-view/15-view-bench
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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92bf5fbfb1 |
Merge branch 'json-view/19-edit-set' into json-view/21-images
Signed-off-by: Niels Lohmann <mail@nlohmann.me> # Conflicts: # include/nlohmann/detail/view/document_data.hpp # single_include/nlohmann/json_view.hpp |
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Niels Lohmann
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9962b3cf43 |
Merge branch 'json-view/16-view-simd' into json-view/19-edit-set
Signed-off-by: Niels Lohmann <mail@nlohmann.me> # Conflicts: # include/nlohmann/detail/view/document_data.hpp # single_include/nlohmann/json_view.hpp |
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Niels Lohmann
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63396cbe00 |
Merge branch 'json-view/23-zmij' into json-view/08-view-builder
Signed-off-by: Niels Lohmann <mail@nlohmann.me> # Conflicts: # Makefile # meson.build |
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 Niels LohmannandDylan Baker
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ed8ba0201f |
Install CMake package config files with Meson, and add Meson options (#5587)
* Install CMake package config files with Meson, and add Meson options Squashed onto develop from: - Install CMake package config files with Meson - meson: Indent code inside an if block - meson: set a minimum Meson version - meson: use `override_dependency()` to set dependencies - meson: use `install_subdir` for headers - meson: set the C++ standard to C++11 - meson: handle single header and multiheader the same way CMake does - meson: add support for the GlobalUDLs option - meson: add support for the ImplictConversions option - Add meson information to FILES.md - Complete the Meson options and match CMake's compile definitions - Add the JSON_* definitions to the CMake pkg-config file - Document the Meson options and check them in CI - Fix the Meson CMake target for includedir or datadir outside the prefix - Avoid //include in Meson-generated CMake target for prefix / - Add DisableTupleReferenceConversion to Meson and the CMake pkg-config file - Check in CI that Meson and pkg-config offer the CMake options - Remove accidentally committed Python bytecode Co-authored-by: Dylan Baker <dylan@pnwbakers.com> Signed-off-by: Dylan Baker <dylan@pnwbakers.com> Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Add the StrictBinaryUTF8 and DeleteDeprecatedFunctions Meson options JSON_StrictBinaryUTF8 (#5741) and JSON_DeleteDeprecatedFunctions (#5755) arrived with develop but were missing from the Meson build and the pkg-config file, so check_build_options failed. Both Meson options default to false and add JSON_STRICT_BINARY_UTF8=1 and JSON_DELETE_DEPRECATED_FUNCTIONS=1 to the dependency, the pkg-config file, and the generated CMake target; CMake's pkg-config file now carries both definitions too. The ci_meson_install job sets and checks them in its non-default install. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Dylan Baker <dylan@pnwbakers.com> Signed-off-by: Niels Lohmann <mail@nlohmann.me> Co-authored-by: Dylan Baker <dylan@pnwbakers.com> |
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Niels Lohmann
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c26aed8d51 |
Merge branch 'json-view/22-view-dump-fast' into json-view/15-view-bench
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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c7138cc9b4 |
Merge branch 'json-view/19-edit-set' into json-view/21-images
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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0a4c6d1a8f |
Merge branch 'json-view/16-view-simd' into json-view/19-edit-set
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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33b7b30d06 |
Merge branch 'json-view/23-zmij' into json-view/08-view-builder
Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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 Niels LohmannandMihnea Magheru
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e752688b52 |
Add a natvis fallback visualizer for detail::json_default_base (#5588)
* Add a natvis fallback visualizer for detail::json_default_base Squashed onto develop from: - Add a type in the natvis template for detail::json_default_base - Document the json_default_base natvis fallback and regenerate natvis - Match json_default_base in both its current and 3.12.0 namespace Co-authored-by: Mihnea Magheru <sakuntalle@yahoo.com> Signed-off-by: Mihnea Magheru <sakuntalle@yahoo.com> Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Take the natvis template from the PR in the amalgamation check The check ran generate_natvis.py from a develop checkout, which loads nlohmann_json.natvis.j2 from its own directory. A PR that changes the template was therefore checked against develop's template and always failed. Copy the PR's template next to the develop script before running it. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Mihnea Magheru <sakuntalle@yahoo.com> Signed-off-by: Niels Lohmann <mail@nlohmann.me> Co-authored-by: Mihnea Magheru <sakuntalle@yahoo.com> |
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Niels Lohmann
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eb34240b90 |
Compare json_view with yyjson, simdjson, and Boost.JSON
tests/benchmarks/json_view/ holds a comparison with other libraries, answering the question users ask when they pick one. It is not built by CMake and not run by CI. - bench_view.cpp: parse, traverse, select and dump of twitter, citm_catalog, canada, jeopardy, a tweet and an RPC request, against json_view, yyjson, simdjson, Boost.JSON and json::parse, all agreeing and run interleaved. - bench_corpus.cpp: parse, traverse and dump of any file list. - bench_edit.cpp: parses, edits through each library's own API, and serializes; all outputs must describe the same value. - compare.py: builds both programs with system or pinned, SHA-256-checked downloads, and writes results with the commit, CPU, OS, compiler and library versions. - README.md and a workflow that runs on demand or via a PR label. Fairness fixes folded in: each engine runs once untimed before each timed round, so the next one no longer pays for the previous one's cleanup; dump is also compared with source numbers against yyjson's raw-number mode; a "simdjson DOM (fresh)" column and a reused-document column for json_view were added; compare.py's paths are absolute; downloads use a .part file and a failed checksum removes the archive. Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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73ceb71c95 |
Add images of json_documents: save() and load()
An image is a document stored so that loading it needs no
parsing: save() writes the node index, the text and the decoded
strings; the static load() reads an image written by save().
load() takes a pointer and size, a borrowed vector, or an owned
rvalue vector; the nodes are copied so they are aligned and can
be edited, while the text and decoded strings stay in the image.
image_check controls how much load() trusts the input: full
checks structure, bounds, strings and numbers, the parser's own
guarantees; bounds checks structure and bounds only; none skips
all checks, for images from a trusted source.
Layout is little-endian only ("NJVI" header, nodes, text, decoded
strings), following the idea of zero-copy formats such as
FlatBuffers and YaFF; the check follows FlatBuffers' Verifier.
New errors: parse_error.116 for a malformed image or a failed
check, type_error.320 for a discarded document or a big-endian
target.
A dedicated fuzzer and 6,000 seeded corruptions, checked under
ASan/UBSan, found and fixed two gaps: unchecked reserved header
fields, and unbounded null/boolean offsets that could make
dump() throw std::length_error.
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
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Niels Lohmann
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c6ee5a64be |
Add editable json_documents: set, push_back, insert, and erase
basic_json_document gets a second template parameter, Editable (false by default), plus the aliases json_editable_document, json_editable_view, ordered_json_editable_document and ordered_json_editable_view. Editable documents can change values and structure without rewriting the source text: set()/push_back() on values, keys, array indices and JSON pointers; insert() before an array element; erase() of an object key, array index or JSON pointer. New values and element sequences go into edit storage that the document owns and never moves, so views keep referring to their value across edits and a parsed node never moves. Read-only documents walk the plain node array and are unaffected. Strings are checked for UTF-8 on entry, so dump() of an editable document never throws type_error.316. Binary values cannot be stored (type_error.319). A seeded differential test applies random edits to an editable document and to the equivalent ordered_json and compares both after every step. Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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759dd2e1b1 |
Add json_document and json_view: node index, parser, and document
Add json_document and json_view, a read-only, zero-copy index of a JSON text, as the first public slice of the zero-copy view (#5295). A parse produces a flat array of 16-byte nodes in document order, one per value and one per object key. Strings stay in the source text; escaped strings are decoded into an arena. Integers are converted while their digits are in the cache; floats keep only their digit layout and are converted on read. Containers store the size of their subtree, so a reader can step over one in constant time. A document makes a handful of allocations, however many values it has. The parser accepts exactly what json::parse accepts, with every combination of ignore_comments and ignore_trailing_commas, with and without a trailing NUL, and under JSON_STRICT_NUL_HANDLING. It is portable C++11 and does not depend on byte order. basic_json_document adds parse, parse_copy, accept, read (reuses a document's memory), root, is_discarded, source, owns_source, node_count, memory_usage, and shrink_to_fit. basic_json_view adds type, the is_* queries, operator bool, size, empty, materialize, and source_offset. A parse error throws the same exception basic_json::parse would throw for the same input, message and position included. detail::abi_config keeps JSON_STRICT_NUL_HANDLING and JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON readable after json.hpp undefines them, in the ABI namespace so they always match the basic_json in use. A NUL byte that ends a // comment is the end of the input, as in parse() since #5696. Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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e4e7d657ef |
Document the API stability guarantee in the roadmap (#5775)
* Document what is not covered by the API stability guarantee Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Move the API stability guarantee to the roadmap Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Note that exceptions to the API stability rules are documented in the release notes Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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 Niels Lohmannandelix3r
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0c2329d0e2 |
Reduce test suite runtime and run the Unicode tests everywhere (#5605)
Squashed onto develop from: - Cut Unicode ill-formed byte sweeps to one representative prefix - Pin unrelated bytes in the remaining ill-formed UTF-8 sweeps - Speed up unit-unicode1 - Run the cheap binary format size tests unconditionally - Compile unit-msgpack.cpp only once - Check the JSON Pointer roundtrip for every code point again - Cover every byte class in the ill-formed UTF-8 sweeps - Merge the Unicode tests into unit-unicode.cpp - Stop excluding the Unicode tests in CI Signed-off-by: elix3r <157088510+22elix3r@users.noreply.github.com> Signed-off-by: Niels Lohmann <mail@nlohmann.me> Co-authored-by: elix3r <157088510+22elix3r@users.noreply.github.com> |
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Niels Lohmann
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1a4c9dea73 |
Fix the standalone release tarball; update compiler list and CITATION (#5734)
Squashed onto develop from: - Make the json.tar.xz release archive configure standalone - Update the supported compiler list and the CITATION.cff repository link - Add json_fwd.hpp to the Bazel singleheader-json target - Document SwiftPM's #include <json.hpp> form and add CI coverage - Migrate REUSE metadata from deprecated .reuse/dep5 to REUSE.toml Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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0490778fc3 |
Replace retired macOS 14 runner and test all available Xcode versions (#5757)
* Replace retired macOS 14 runner and test all available Xcode versions GitHub retires the macos-14 image on 2026-11-02 (brownouts from 2026-10-05). Xcode 15 is not available on any remaining hosted runner, so drop the macos-14 job and its documented compilers. Also test the Xcode versions that the images provide but CI did not use (26.1.1-26.3 on macos-15, 26.4.1-26.6 on a new macos-26 job), and pin GCC 16 explicitly next to gcc:latest. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Document new Xcode and GCC versions in the supported compilers table Versions taken from the CI logs of this PR (Xcode 26.1.1-26.6) and from the gcc:16 image (same digest as gcc:16.2.0 and gcc:latest). Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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8a142bc436 |
Fix CI on develop after #5600, #5607, and #5755 (#5764)
* Fix CI on develop after #5600, #5607, and #5755 - binary_reader: cast the result of -1 - number back to number_integer_t, because a number_integer_t narrower than int is promoted to int, which GCC's -Warith-conversion rejects (ci_test_gcc, ci_test_standards_gcc) - JSON_DELETE_DEPRECATED_FUNCTIONS: declare the deleted stream operators as function templates at namespace scope, because GCC < 5 rejects deleted friend functions ("can't initialize friend function") and Clang 7-9 report a redefinition when a class template has a deleted friend function - docs: give the examples of JSON_USE_OBJECTS_FOR_ENUM_KEYED_MAPS "Example:" titles and add the page to the docset (style_check) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Ignore libstdc++'s <format> sign change in the sanitizer job libstdc++ 14's <format> initializes a size_t parameter with -1 (GCC bug 119429), so every std::format call fails ci_test_clang_sanitizer under -fsanitize=integer (test-std-format_cpp20). Exclude only the implicit-integer-sign-change check and only that header via -fsanitize-ignorelist. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix the AppVeyor (MSVC 2015-2019) build - binary_reader: emit_signed/emit_unsigned pass integers that do not fit the number types to emit_float as long double, because MSVC's <cmath> has no integer overloads of std::isfinite (C2668 'fpclassify'), from #5607 - scalar comparisons: the friend operators take the JSON type for their noexcept from their parameter, because MSVC 2015/2017 take basic_json as the class template there (C3203) and MSVC 2019 16.0 does not see member types or template parameters, from #5751 - unit-conversions2: skip the !is_nothrow_constructible static_assert for std::optional on MSVC 2017, which evaluates the conditional noexcept as true (C2607), from #5754 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Re-amalgamate Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Avoid MSVC 2015's C4800 for enums with underlying type bool MSVC 2015 warns about any conversion to bool (C4800), even with an explicit cast, so the enum conversions from #5754 (#5671) failed the AppVeyor build with /WX. Convert to bool by comparing with zero via the new detail::bool_aware_static_cast, and keep doctest from printing the enum in the test. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Skip the #5650 allocator test on MSVC 2015 debug builds MSVC 2015's debug STL constructs the containers' debug proxies through the allocator in noexcept constructors, so countdown_allocator's failing construction crashes test-allocator (SIGSEGV) instead of throwing std::bad_alloc. Use the guard #5585 uses for the same reason. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Skip deleted-function detection checks on MSVC 2015 MSVC 2015 does not treat selecting a deleted function in decltype as a substitution failure, so the detection traits in unit-delete_deprecated_functions (#5755) and the integral-key checks in unit-element_access2 (#5657) report deleted overloads as callable there. Calling them still fails to compile. Skip those checks for _MSC_VER < 1910, and use the stream operators for real in the runtime section, so MSVC 2015 still compiles them with the macro set. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Split the Visual Studio 2017 AppVeyor jobs in two The VS 2017 jobs hit AppVeyor's 60-minute limit per job while still compiling the tests (77 of about 108 test targets after 58 minutes). They pass /std:c++17 for everything anyway, so build only the C++17 variant of each test (JSON_TestStandards=17), and split the unit test files across two jobs each with the new JSON_TestShard=<index>/<count> option, which keeps every <count>-th test file starting at <index>. The extra variants of single test files are built in shard 0 only. CMAKE_OPTIONS is no longer quoted in appveyor.yml, so that it can hold more than one option. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix std::terminate when converting std::optional with MSVC 2017 MSVC 2017 evaluates std::is_nothrow_assignable<json&, const T&> as true even if T's to_json throws, so to_json(json&, const std::optional<T>&) was noexcept there and the exception from #5642's test called std::terminate instead of propagating. Make that conversion never noexcept on MSVC 2017; all other compilers keep the exact condition. The static_asserts on the condition are skipped for MSVC 2017; the runtime check that the exception propagates still runs there. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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23d3b373e1 |
Add JSON_DELETE_DEPRECATED_FUNCTIONS to delete the deprecated functions (#5755)
* Add JSON_DELETE_DEPRECATED_FUNCTIONS to delete the deprecated functions Defining JSON_DELETE_DEPRECATED_FUNCTIONS to 1 (or the CMake option JSON_DeleteDeprecatedFunctions) declares every deprecated function as deleted instead of deprecated, so that code that is not ready for 4.0.0 no longer compiles. A deleted function still takes part in overload resolution, so from_*(ptr, len) cannot silently bind len to the strict parameter of from_*(InputType&&, bool); the roadmap now plans to keep these overloads deleted in 4.0.0 instead of removing them. The legacy discarded-value comparison is left to its own macro. Also update the 4.0 roadmap: add JSON_DISABLE_TUPLE_REFERENCE_CONVERSION and JSON_DELETE_DEPRECATED_FUNCTIONS to the macro table, add the from_bjdata/from_bon8 (ptr, len) overloads to the deprecated functions, document the macro in the migration guide, and fix the docs style check findings (example titles, missing docset entry for JSON_STRICT_BINARY_UTF8). Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Declare each deprecated function once and guard only its body Instead of repeating every deprecated declaration in an #if JSON_DELETE_DEPRECATED_FUNCTIONS branch, keep one declaration (with its deprecation attribute) and switch only between "= delete;" and the function body. Suggested by @gregmarr in the review. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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d8d47be4a5 |
Fix CI on develop after merging the ready-to-merge PRs (#5754)
* Keep the serializer conversion for objects whose keys cannot be converted #5591 added a test converting nlohmann::json into a basic_json whose string type cannot be constructed from std::string. That instantiates convert_iteratively(), whose members.emplace_back(next.key(), ...) needs exactly that key conversion, and broke the build of unit-alt-string. Dispatch on the key's constructibility and leave such conversions to the serializers, as the levels above the nesting bound already do (#3425). Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix the remaining CI failures on develop - unit-wstring: with a 16-bit wchar_t (Windows), a lone surrogate is reported as the ill-formed byte 0xFF since #5704; the std::wstring expectations still had the previous <U+0000>. - ci_single_binaries: json_literals.hpp (#5610) and json.hpp include each other on purpose, and IWYU, not following the cycle, asks to replace json.hpp with json_fwd.hpp. Report its findings without failing the build, as already done for json.hpp. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix the library warnings and noexcept specifications from the merged PRs - binary_reader: rename the error_handler constructor parameter, which shadowed the member (-Wshadow, -Wshadow-field-in-constructor; #5746) - basic_json(copy_construct_tag, ...): declare it noexcept when copying the base class is (GCC 16 -Wnoexcept; #5690) - the scalar-on-left legacy comparison operators: noexcept only when converting the scalar is, like their member counterparts (#5682, #5751) - compare_leaves: use std::is_eq/is_lt/is_gt instead of comparing a std::partial_ordering with 0 (-Wzero-as-null-pointer-constant; #5686) - serializer: silence MSVC C4127 for the EnsureAscii template parameter (#5741, #5746) - clang-tidy: return the sanitized reference in binary_writer, take the key of ordered_map::find_impl by const reference (#5727), and mark the switches over parse_array_index (#5728) - ordered_map: keep <memory> for std::allocator (IWYU) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Split unit-conversions.cpp so MinGW can link it clang 18 with the MinGW linker failed to link test-conversions_cpp17 ("relocation truncated to fit: IMAGE_REL_AMD64_REL32"). As windows.yml recommends, keep the objects small by splitting the test file. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix the tests added by the merged PRs for all CI configurations - discard the results of dump() and from_*() in CHECK_THROWS with utils::ignore_return_value (GCC -Werror=unused-result) - give unit-bson's huge_string_t a default constructor (MSVC C2512, GCC 5, clang 3.5) - unit-disabled_exceptions: use the literals namespace when the global UDLs are off (ci_test_noglobaludls; #5700) - unit-binary_utf8_strict: expect the JSON pointer prefix with JSON_DIAGNOSTICS (#5741) - skip the tests that rely on exceptions under JSON_NOEXCEPTION (#5678, #5732) - clang-tidy and clang -Werror: static test data, CAPTURE(...);, const-correctness, use-after-move alias, unused conversion operator, a missing <iterator> include Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Title the macro examples and add JSON_STRICT_BINARY_UTF8 to the docset The documentation style check requires "Example: ..." titles on pages with several examples (#5741, #5591) and a docset entry for every macro page. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Regenerate BUILD.bazel and nlohmann_json.natvis Signed-off-by: Niels Lohmann <mail@nlohmann.me> #5746 added detail/output/error_handler.hpp and #5741 the json_abi_sbu8 ABI tag. * Install libidn11 for the CMake 3.5.0 binary in ci_cmake_flags Signed-off-by: Niels Lohmann <mail@nlohmann.me> #5733 moved ci_cmake_options from ubuntu:focal to ubuntu:24.04, which no longer ships libidn.so.11; the CMake 3.5.0 release binary links against it, so every ci_cmake_flags run has failed since. Install focal's libidn11 package for that matrix entry only. * Suppress Infer's false STACK_VARIABLE_ADDRESS_ESCAPE in get_impl get_impl() returns its local by value. A test added by the merged PRs instantiates it with a type Infer misreads, so ci_infer reported the 2021 code for the first time. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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63c10a51fc |
Review and extend the documentation, and check it in CI (#5638)
* Review and extend the documentation, and check it in CI A review of all documentation pages found factual errors, dead links, missing cross-references, and gaps in examples. This fixes them and adds checks so the same problems are caught automatically. Fixes: - wrong signatures and version histories (operator!= C++20 member, binary() subtype type, get<PointerType>(), JSON_NO_THREAD_LOCAL, ...) - stale descriptions (number parsing since #5283, UBJSON table, SAX example that no longer compiled, tsl::ordered_map advice) - dead internal and external links; repology.org badges (the domain is suspended) replaced by badges that query the registries directly - deprecation notes link the migration guide; the guide itself fixed Additions: - "See also" sections, cross-references, 25 runnable examples, 12 Mermaid diagrams, new API pages for json_pointer::operator<=> and byte_container_with_subtype::operator==/!= - landing page, guides for untrusted input and performance - "unreleased" badge after versions newer than the latest release Checks: - strict documentation build (broken links/anchors fail it); CI and the publish workflow fetch the full history the build needs - weekly external link check, Mermaid syntax check in CI - check_structure.py: example titles, heading levels, alt texts, header links, docset index coverage; its unused-example check works again - all examples produce the same output on every platform Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Keep the customer links that could not be fixed A dead link on the customers page is still the evidence of where the use of the library was documented. Keep the original URLs of the entries without a working replacement (Marne, Cisco Webex Desk Camera, Philips Hue, CyberArk) and exclude exactly these URLs from the link check. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Correct the duplicate-key recipe's claim about SAX positions The SAX interface's key() receives no position either; only parse_error() does. Also note that the recipe does not report the path to the repeated key (see discussion #5085). Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Say the library is available as a single header and mention json_fwd.hpp Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Correct documentation errors found while hunting for bugs - patch/patch_inplace: list the JSON pointer errors parse_error.106-109 and out_of_range.402/404, and quote the actual parse_error.105 message. - unflatten: list parse_error.106/107/108 and out_of_range.404. - to_bson: list out_of_range.415 (binary subtype above 255) and note that 412 and 415 are new in 3.13.0. - to_string: state that string_t must be convertible to std::string, also in the StringType requirements table. - JSON Lines: a `while (input >> j)` loop also throws after the last value for concatenated JSON values; show a loop that works for both. - BON8: a string gets 0xFF only if nothing follows it in the message; a string at the end of an array or object is ended by 0xFE. - custom_string_type.hpp: add operator+=(char), which the "Always required" list asks for (json_pointer::to_string, flatten, unflatten, and diff did not compile), and an ADL int_to_string for diff and items. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Cache the release headers with functools.lru_cache Codacy (Pylint) flagged the mutable default argument that header() used as its cache. functools.lru_cache keeps the same memoization without it. The script's output is unchanged. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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 dependabot[bot]
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48ff79647f |
Bump the codeql-action group with 4 updates (#5743)
Bumps the codeql-action group with 4 updates: [github/codeql-action/init](https://github.com/github/codeql-action), [github/codeql-action/autobuild](https://github.com/github/codeql-action), [github/codeql-action/analyze](https://github.com/github/codeql-action) and [github/codeql-action/upload-sarif](https://github.com/github/codeql-action). Updates `github/codeql-action/init` from 4.38.1 to 4.38.2 - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](https://github.com/github/codeql-action/compare/1c5b675653bb5c22dbe9b12b556ec555138e09fd...2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2) Updates `github/codeql-action/autobuild` from 4.38.1 to 4.38.2 - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](https://github.com/github/codeql-action/compare/1c5b675653bb5c22dbe9b12b556ec555138e09fd...2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2) Updates `github/codeql-action/analyze` from 4.38.1 to 4.38.2 - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](https://github.com/github/codeql-action/compare/1c5b675653bb5c22dbe9b12b556ec555138e09fd...2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2) Updates `github/codeql-action/upload-sarif` from 4.38.1 to 4.38.2 - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](https://github.com/github/codeql-action/compare/1c5b675653bb5c22dbe9b12b556ec555138e09fd...2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2) --- updated-dependencies: - dependency-name: github/codeql-action/init dependency-version: 4.38.2 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: codeql-action - dependency-name: github/codeql-action/autobuild dependency-version: 4.38.2 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: codeql-action - dependency-name: github/codeql-action/analyze dependency-version: 4.38.2 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: codeql-action - dependency-name: github/codeql-action/upload-sarif dependency-version: 4.38.2 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: codeql-action ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> |
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Niels Lohmann
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11e75a5428 | Cancel CI runs of merged and closed pull requests (#5748) | ||
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Niels Lohmann
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e400780533 |
Re-amalgamate single_include (#5745)
* Re-amalgamate single_include #5737 changed 13 headers under include/ but merged without the matching single_include/nlohmann/json.hpp update, so the amalgamated header still had, among others, the GCC C++20 -Wignored-attributes pragma block and the clang -Wdocumentation push/pop that #5737 removed, the forwarding from_json tuple/array helpers it replaced with const references, and lacked the output_adapter char_traits changes it added. Regenerated with `make amalgamate` (astyle 3.4.13). The diff is exactly `git diff |
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Niels Lohmann
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e5a89d671f |
Fix lint debt: enum-macro NOLINTs, doctest as SYSTEM, no-op analyzer (#5737)
* Drop stale LCOV_EXCL_LINE from the json_pointer out_of_range.410 throw The comment said the size_type overflow check in array_index() is only triggered on special platforms like 32-bit, and the throw was excluded from coverage. On 64-bit platforms the check is true for SIZE_MAX itself, and unit-json_pointer.cpp has asserted that case four times since #5395, so the line is executed in the coverage job. Reword the comment and remove the exclusion marker so the coverage report notices if the tests stop reaching it. Part of #5725 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Name all three C-array check aliases in the enum-macro NOLINTs NLOHMANN_JSON_SERIALIZE_ENUM(_STRICT) suppressed the c-array warning under modernize-avoid-c-arrays only, but clang-tidy emits the same diagnostic under the aliases cppcoreguidelines-avoid-c-arrays and hicpp-avoid-c-arrays too. Any user running those checks got a false positive at every macro expansion, and our own tests needed a local NOLINT at each call site to work around it. Name all three aliases in the four macro comments instead, and drop the now-redundant c-array names from the five test call-site NOLINTs. Comment-only change; behavior, the public API, and the ABI do not change. Ran make amalgamate. Part of #5725 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Include doctest as a SYSTEM directory instead of disabling warnings for all tests test_main added -Wno-deprecated and -Wno-float-equal as PUBLIC compile options for every non-MSVC compiler, so they were applied to every translation unit, library headers included, and silenced the CI warnings meant to check the library's own -Wfloat-equal pragmas. The only code that actually needed the suppression was the vendored doctest.h, which was included as a normal (non-SYSTEM) directory. Include thirdparty/doctest as SYSTEM for test_main, matching what tests/abi/CMakeLists.txt already does, and drop the two suppressions from both targets. Verified locally that unit-comparison, unit-conversions and unit-constructor1 compile clean with -Werror -Weverything and doctest as -isystem, and that CMake still configures with JSON_BuildTests=ON. Part of #5725 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Remove the no-op ci_clang_analyze target ci_clang_analyze configured the build with the real compiler and only then wrapped ninja with scan-build. scan-build intercepts compiles by overriding CC/CXX, but build.ninja already had the compiler path baked in from the configure step, so every run bypassed the analyzer: CI logs show "No bugs found" after a normal build, never an analysis. The job also used Debian's frozen clang-tools-14 rather than the image's own clang, and CLANG_ANALYZER_CHECKS still named three valist.* checkers that current clang merged into security.VAList. ci_clang_tidy already runs every clang-analyzer-* check (via .clang-tidy's "Checks: '*'") with warnings as errors, so nothing is lost by removing the dead job. Delete ci_clang_analyze, CLANG_ANALYZER_CHECKS and the SCAN_BUILD_TOOL lookup from cmake/ci.cmake, drop it from the ubuntu.yml ci_static_analysis_clang matrix, and drop the now-unused clang-tools apt package (iwyu stays for ci_single_binaries). Reword quality_assurance.md and assurance_case.md, which described the dead job as a working control, to say the Clang Static Analyzer checks run through clang-tidy. Verified that `cmake -DJSON_CI=ON` still configures cleanly and that ci_clang_analyze no longer appears in the generated build or in any CMake/workflow file. Part of #5725 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Re-enable portability-template-virtual-member-function; remove redundant forwards .clang-tidy disabled three checks "to get the CI going" (#4489, 2024-11-13): portability-template-virtual-member-function, bugprone-use-after-move and its alias hicpp-invalid-access-moved. portability-template-virtual-member-function only flagged output_stream_adapter::write_character/write_characters; annotate both with NOLINT and re-enable the check. bugprone-use-after-move flagged several double forwards that have no effect at runtime: - from_json.hpp calls std::forward<BasicJsonType>(j).at(Idx) inside pack expansions; at() has no ref-qualified overloads and always returns an lvalue reference, so the forward is a no-op. Replace with plain j.at(Idx) in all four places. - the move constructor forwards the whole object to its base class and then reads other's members. That is item 9 of #5724 (together with its cppcheck suppressions) and is left to that change. - input_adapters.hpp forwards the container twice on purpose, so the begin/end iterator types match adapter_type; annotate with NOLINT and a comment instead of changing behavior. The check still flags the move constructor (see above) and two sites in at(KeyType&&) (both overloads, json.hpp, in the throw's string_t(std::forward<KeyType>(key)) after find(std::forward<KeyType>(key))). Open PR #5689 rewrites that hunk, so bugprone-use-after-move (and hicpp-invalid-access-moved) stay disabled for now, with a comment explaining why; re-enable them once #5689 and the #5724 move-constructor change have landed. Also resolve the portability-avoid-pragma-once TODO: single_include never has #pragma once (amalgamate.py strips it) and every supported compiler accepts it in include/, so keep it disabled with an explanatory comment instead of a TODO. Fix the stale "json.hpp, around line 1265" comment in unit-class_parser.cpp, which now points at the move constructor's actual line. Behavior, the public API and the ABI do not change. Verified with clang-tidy 22.1.8 that portability-template-virtual-member-function now reports nothing, that bugprone-use-after-move/ hicpp-invalid-access-moved report only the known at(KeyType&&) and move-constructor sites, and that unit-custom-base-class, unit-constructor1, unit-conversions, unit-element_access2, unit-class_parser and unit-diagnostic-positions (JSON_DIAGNOSTIC_POSITIONS=1) compile under ASan/UBSan and pass with the same assertion counts as before. Ran make amalgamate. Part of #5725 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix stale and malformed NOLINT comments json_sax.hpp named "-warnings-as-errors" in the NOLINT list on the two JSON_ASSERT(false) lines; that is the suffix clang-tidy appends to a diagnostic tag under WarningsAsErrors, not a check name, and every other JSON_ASSERT(false) omits it. unit-capacity.cpp carried 30 "// NOLINT(misc-const-correctness)" comments on "json j = ...;" declarations that are all used with non-const members afterwards, so the check has nothing to report there. unit-constructor2.cpp used a blanket "// NOLINT: access after move is OK here" on a use-after-move that hides every check on the line; naming bugprone-use-after-move and hicpp-invalid-access-moved keeps the intent once those checks are re-enabled (#5724). Signed-off-by: Niels Lohmann <mail@nlohmann.me> #5725 item 10 * Remove stale .clang-tidy entries -google-runtime-references disabled a check that neither clang-tidy 22.1.8 nor 23.1.2 lists under --list-checks -checks='*'; it was removed upstream. The commented-out HeaderFilterRegex line has been unused since the active HeaderFilterRegex was introduced in #2561 (2021). Signed-off-by: Niels Lohmann <mail@nlohmann.me> #5725 item 11 * Remove the GCC C++20 -Wignored-attributes pragma in json.hpp The pragma (added in #5164) claimed to work around the C++ modules redefinition errors of #5103, but #5103 is about hard errors (e.g. "redefinition of std::__is_constant_evaluated()", conflicting std::integral_constant) that ignoring a warning cannot suppress; they are traced to GCC PR 124430 and reproduce with <map> or <string> instead of json.hpp too. A GCC 16.2 -std=gnu++20 -fmodules build following #5103's repro steps still fails with the pragma in place, and a build of all test TUs with GCC_CXXFLAGS (which enable -Wignored-attributes) and the pragma removed produces no such warning. The block only hid a warning class from GCC C++20 users while suggesting #5103 was handled. Overlaps #5610, whose hunks touch the closing half of this pragma to insert the json_literals.hpp include. Signed-off-by: Niels Lohmann <mail@nlohmann.me> #5725 item 9 * Fix stale doxygen comments hidden by the -Wdocumentation pragma macro_scope.hpp ignores -Wdocumentation and -Wdocumentation-unknown-command for the whole library, which also hides genuine documentation mistakes: - detail::unescape() documented "@return unescaped string" but returns void and unescapes its argument in place; reworded to "@param[in,out] s string to unescape in place" and dropped the bogus @return. - basic_json::get()'s copy-conversion overload wrote "converted to @tparam ValueType" inside @return, which Doxygen and Clang parse as a second, malformed @tparam; changed to "@a ValueType", matching the two other get() overloads a few lines above that already use it. This narrows the gap the -Wdocumentation pragma needs to cover; fully replacing the Doxygen-only commands it also hides (item 2c) is left for after #5267. Signed-off-by: Niels Lohmann <mail@nlohmann.me> #5725 item 2 * Fix -Wextra-semi-stmt at its actual source, not assert() clang_flags.cmake blamed the global -Wno-extra-semi-stmt on assert(), but assert() expands to an expression under glibc and libc++ and does not trigger this warning. unit-assert_macro.cpp overrides JSON_ASSERT with "{if (!(x)) ++assert_counter; }", a bare block followed by a semicolon at every JSON_ASSERT(...) call site in the library; that was the actual source of 151 of the 208 -Wextra-semi-stmt sites found in a Clang 22 -Weverything sweep of the test suite with the flag removed. Switched to the standard do/while(false) macro idiom, which does not expand to a statement-plus-semicolon, and corrected the comment to name the remaining source instead: vendored Doctest's CAPTURE(x) shim, which already ends in a semicolon. Verified with clang++ -Wextra-semi-stmt (plus the file's other CI ignores) that unit-assert_macro.cpp now compiles without any -Wextra-semi-stmt diagnostic. Signed-off-by: Niels Lohmann <mail@nlohmann.me> #5725 item 8 (step 1 of 2; step 2 covers the CAPTURE() call sites) * Drop the redundant semicolon from CAPTURE() call sites; remove -Wno-extra-semi-stmt doctest_compatibility.h defines CAPTURE(x) as DOCTEST_CAPTURE(x); (with a trailing semicolon baked into the macro), specifically so call sites do not need to add one themselves; most of the ~267 call sites already follow that convention. The remaining 64 call sites across 20 files wrote "CAPTURE(x);" anyway, turning into a statement plus an empty statement and triggering -Wextra-semi-stmt. Dropped the redundant semicolon at each of those sites. With item 6 having already made vendored Doctest a SYSTEM include, and this the last known source of -Wextra-semi-stmt findings, removed the flag from clang_flags.cmake entirely. Verified with clang++ -Wextra-semi-stmt (plus the file's other CI ignores) that all 20 touched files, plus a file with no CAPTURE() use (unit-json_pointer.cpp), compile without any -Wextra-semi-stmt diagnostic. Signed-off-by: Niels Lohmann <mail@nlohmann.me> #5725 item 8 (step 2 of 2) * Switch ci_static_analysis_clang off the frozen LLVM 22 dev image ubuntu.yml pinned the clang-tidy/clang-tidy-sanitizer/single-binaries job to silkeh/clang:dev, a tag last pushed 2026-02-18 that reports "clang version 22.0.0 (...+20251015...)", a pre-release snapshot from before the LLVM 22 release; the maintainer now updates dev-unstable, 22, and latest instead. Switched to silkeh/clang:22, matching the other clang jobs on :latest. Verified with clang-tidy 22.1.8 (the image's actual version) against this repository's .clang-tidy and library headers what the release image newly reports compared to :dev: - readability-redundant-typename fires at ~250 sites across the _cpp20-relevant conversion/to_chars headers; the library targets C++11 and keeps the typenames, so the check is disabled in .clang-tidy, matching how the file already handles checks that don't fit a C++11 codebase. - misc-anonymous-namespace-in-header fires on the two anonymous namespaces in from_json.hpp and to_json.hpp; added the alias to their existing NOLINT (cert-dcl59-cpp, fuchsia-header-anon-namespaces, google-build-namespaces). - bugprone-std-namespace-modification fires on every addition to namespace std: the std::hash, std::formatter and std::swap overloads in json.hpp, and the std::tuple_size/std::tuple_element specializations in iteration_proxy.hpp (this last file is not named in #5725's item 5, found by actually running clang-tidy 22.1.8 against the current tree). All six are legal, deliberate additions to namespace std (explicit/partial specializations of std types, or the pre-C++20 std::swap overload); annotated each with the check name next to its existing cert-dcl58-cpp NOLINT. - modernize-avoid-c-style-cast reported nothing new. Also added clang++-22/21, clang-tidy-22/21, g++-16 and gcov-16 to the find_program search lists in ci.cmake so a local "maximal warnings" configure prefers the current toolchain version over an older one on PATH. #5725 item 5 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Regenerate cmake/gcc_flags.cmake for GCC 16.2.0 GCC_CXXFLAGS was generated for GCC 15.1.0, but ci_test_gcc and ci_test_gcc_cxx{11..26} now run in gcc:latest, currently GCC 16.2.0, so the "maximal warnings" job was missing warnings introduced since 15.1.0 while carrying entries GCC 16 treats as duplicates or no-ops. Regenerated with https://github.com/nlohmann/gcc_flags (patched locally to not crash on an option whose "-x c++ <opt> -" probe fails before it reads stdin, e.g. -Wabi=; the tool otherwise raises BrokenPipeError instead of recording the option as an error) run against g++ 16.2.0 in the official gcc:16 Docker image, keeping the documented -Wno-* exclusions and the same alphabetical placement scheme as before. Also added three GCC 16 warnings the generator cannot discover on its own because it only probes value ranges/lists it finds in the -Q option name itself, not in the enum choices --help=warnings documents separately: - -Wbidi-chars=any, -Wleading-whitespace=spaces: manually verified these compile cleanly with g++ 16.2.0. - -Wstrict-flex-arrays: deliberately NOT added, unlike the other two. Without -fstrict-flex-arrays (which the library does not enable, as it would change codegen for flexible array members), GCC prints "'-Wstrict-flex-arrays' is ignored when '-fstrict-flex-arrays' is not present" on every translation unit, and under our -Werror that note itself aborts the build. This differs from the harmless no-op warnings already kept in the file (-Whsa, -Wsynth, -Wunreachable-code, -Wunsafe-loop-optimizations), which emit nothing; #5725 item 7 named -Wstrict-flex-arrays as one of the flags GCC 16 adds, but did not anticipate this failure mode. Verified: compiled the library header and a representative set of test translation units (including ones touched by items 1, 3, 8, 9, 10 of this issue) with the regenerated GCC_CXXFLAGS plus -Werror under g++ 16.2.0 at -std=c++11 through -std=c++26, with zero warnings; ran the full local test suite (129/129 passing, unrelated to this compiler) as a regression check. CI must still confirm the actual ci_test_gcc / ci_test_standards_gcc targets end to end, since this was verified with direct g++ invocations rather than through the CMake/ CXXFLAGS environment-variable plumbing in ci.cmake. #5725 item 7 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Avoid std::basic_string<CharType> for non-character output_adapter CharType output_adapter<CharType, StringType> defaulted StringType to std::basic_string<CharType>, and (with JSON_NO_IO undefined) always declared a std::basic_ostream<CharType>&-taking constructor. For CharType with no non-deprecated std::char_traits specialization (only std::uint8_t is ever used this way, by the binary writers), simply naming either type - as an unused default template argument, or as an unused, never-called constructor's parameter type - instantiates std::char_traits<CharType> merely to name it, which some standard libraries mark deprecated: with the library-wide -Wdocumentation pragma (item 2's other half, left for a later commit) temporarily removed, an Apple clang 21 / libc++ TU calling json::to_cbor(j, vec) with std::vector<std::uint8_t>& got one -Wdeprecated-declarations warning per binary writer at the old output_adapters.hpp:193. Replaced the eager std::basic_string<CharType> / std::basic_ostream <CharType> defaults with a bool-tagged partial specialization (not std::conditional, which requires naming both branches' types up front regardless of which is selected, reproducing the same warning) that only ever names std::basic_string<CharType> / std::basic_ostream <CharType> when CharType is actually one of char, wchar_t, char16_t, char32_t, or (with __cpp_lib_char8_t) char8_t. For any other CharType, output_adapter's StringType and ostream-constructor parameter fall back to two distinct empty placeholder types, kept distinct so the two constructor overloads do not collide into a single redeclaration. Public API / behavior: passing a std::basic_string<std::uint8_t>& or std::basic_ostream<std::uint8_t>& directly to a binary writer's output_adapter now fails to compile instead of compiling with a deprecation warning; this was neither documented nor tested. All documented uses (std::vector<CharType>, std::basic_ostream<CharType> and StringType for character CharType) are unaffected. Verified with Apple clang 21 / libc++, with the two -Wdocumentation* "ignored" pragma lines in macro_scope.hpp temporarily removed and -std=c++11/c++20 plus the project's -Weverything flag set: calling to_cbor/to_msgpack/to_ubjson/to_bjdata/to_bson/to_bon8 on a std::vector<std::uint8_t> now produces no char_traits<unsigned char> (or any other) deprecation warning, while the char-based string- and ostream-adapter paths, and a to_cbor/from_cbor round trip, still compile and run correctly; also verified with GCC 16.2.0. Ran the full local test suite, including the binary-format unit tests (unit-cbor, unit-msgpack, unit-ubjson, unit-bjdata, unit-bson, unit-bon8, unit-binary_writer_sinks, unit-binary_formats, unit-custom-binary-type): 129/129 passing. #5725 item 2 (step a) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Remove the library-wide -Wdocumentation pragma; fix what it hid macro_scope.hpp / macro_unscope.hpp pushed and popped a Clang diagnostic region over the entire library that ignored -Wdocumentation and -Wdocumentation-unknown-command. Removed both pragmas and fixed every finding a full -Wdocumentation (which implies -Wdocumentation-unknown-command and -Wdocumentation-deprecated-sync) build reports, so the library now compiles clean under Clang's documentation checks without a blanket suppression. Overlaps #5267, which is still open and edits a nearby doc block (json.hpp's get()/get_impl() @return, already fixed in the item 2 step (b) commit of this branch); this commit does not touch that block again. Unknown Doxygen alias commands (Doxyfile removed in #3071, so these were never rendered by anything) rewritten as plain prose, keeping the same information: - @requirement REQ-JSON-01 / REQ-JSON-02 (iter_impl.hpp, json_reverse_iterator.hpp): now "This class satisfies the following concept requirements (REQ-JSON-0N):". - @liveexample{prose,example-id} (three sites in json.hpp): kept the prose, dropped the command wrapper and the trailing example-id (docs/mkdocs/docs/examples/*.cpp still exist and are used directly by the rendered docs, not through this in-header alias) and unescaped the "\," commas that were only needed for the old alias's comma-separated argument syntax. - @complexity X (json.hpp x4, json_pointer.hpp x2, serializer.hpp x1): now "Complexity: X". Backslash sequences Clang's comment lexer tried to parse as commands, escaped to render as literal backslashes: - lexer.hpp get_codepoint(): two `\u` occurrences. - binary_reader.hpp get_bson_cstr() / get_bson_cstr_bulk(): two `\x00` occurrences. - serializer.hpp: three `\uXXXX` occurrences (constructor @param, append_codepoint_to_string_buffer() @brief, and the ensure_ascii member comment). One finding remained after all of the above: Clang reports "declaration is marked with '@deprecated' command but does not have a deprecation attribute" on the deprecated sax_parse(span_input_adapter&&, ...) overload, even though JSON_HEDLEY_DEPRECATED_FOR does expand to __attribute__((deprecated(...))) for Clang. Several isolated reproductions of this exact declaration shape - doc comment, template<>, two stacked __attribute__ macros, an overload set sharing the name - did not reproduce the warning, so this looks like a Clang comment/declaration-association quirk specific to this overload inside the much larger basic_json class template, not an actual documentation defect. Rather than keep the pragma library-wide for one Clang false positive, added a tightly scoped -Wdocumentation-deprecated-sync push/pop around just that overload. Verified with Apple clang 21 and the project's actual -Weverything flag set (cmake/clang_flags.cmake) on the full header at -std=c++11 and -std=c++20: zero -Wdocumentation* diagnostics. Also compiled clean with GCC 16.2.0 (the pragmas are already __clang__-gated, so this only confirms no unrelated breakage). Ran make check-amalgamation and the full local test suite: 129/129 passing. #5725 item 2 (step c) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Take the JSON value by const reference in the array and tuple from_json paths Review feedback on #5737 (gregmarr): once the no-op std::forward calls are gone, the forwarding references have no purpose. from_json_fn passes the value as const BasicJsonType&, so these functions were only ever instantiated with a const lvalue anyway. The std::array, std::pair and std::tuple overloads of from_json and their helpers now take const BasicJsonType& and pass j on unchanged. Because the deduced BasicJsonType is now the plain type, tuple_type and the static_assert name const BasicJsonType& explicitly, so the reference checks are unchanged: get<std::tuple<const std::string&>>() still works, and get<std::tuple<std::string&>>() still fails the same static_assert. from_json_tuple_get_impl keeps its forwarding reference, since tuple_type calls it through std::declval. Behavior, the public API and the ABI do not change. unit-conversions, unit-constructor1, unit-udt, unit-udt_macro, unit-regression1/2/3, unit-deserialization, unit-noexcept, unit-items, unit-allocator, unit-custom-object-type, unit-ordered_json2 and unit-brace-init-copy-semantics pass at C++11, C++17 and C++20 with unchanged assertion counts. Ran make amalgamate. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
|
1d675cdb46 |
Fix CI jobs that check less than they claim; move arm64 to GitHub (#5733)
* Fix the ci_cmake_flags wiring so every option is checked
The CMake 3.31.6 flag list referred to itself before it was defined,
so only JSON_BuildTests was checked with that version. The targets for
the CMake running the build ("_2") were created but never added to
ci_cmake_flags, and the three versions shared one build directory.
JSON_StrictNulHandling was not in the list at all.
Use the 3.5.0 list for 3.31.6, add JSON_StrictNulHandling, and create
one ci_cmake_flag_<flag> target per option for the running CMake with
its own build directory. Also use the function parameter in the
COMMENT, refresh the stale version comment, and let ci_clean remove
the downloaded cmake-<version> directories instead of the long-gone
cmake-3.5.0-Darwin64.
Part of #5715
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
* Fix ci_test_clang_libcxx_cxx* jobs silently building without warnings
CMake only seeds CMAKE_CXX_FLAGS from the CXXFLAGS environment variable
when the cache entry is unset, so the explicit -DCMAKE_CXX_FLAGS="-stdlib=libc++"
argument made it ignore CXXFLAGS="${CLANG_CXXFLAGS}" entirely. The six
ci_test_standards_clang (..., libcxx) jobs therefore compiled without
-Weverything/-Werror while their libstdc++ siblings did use them.
Pass -stdlib=libc++ through the same CXXFLAGS value instead of a separate
-D argument, and give the target its own build directory
(build_clang_libcxx_cxx${CXX_STANDARD}) so it no longer shares a CMake
cache with the libstdc++ variant. Suppress the resulting
-Wthread-safety-negative finding from libc++'s std::mutex annotations,
which fires on doctest's reporters in this translation unit only.
Part of #5715
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
* Remove the no-op AppVeyor with_win_header job
The with_win_header matrix entry patched Windows.h into
single_include/nlohmann/json.hpp before building, but JSON_MultipleHeaders
has defaulted to ON since #3532 (2022-06), so CMakeLists.txt points the
tests at include/ and the patched single header is never compiled. The
job has been a no-op VS2015 build since then.
Windows.h coverage already exists through tests/src/unit-windows_h.cpp
(#3631), which runs in every MSVC job. Delete the dead matrix entry and
its before_build steps, and cite unit-windows_h.cpp from the QA page.
Part of #5715
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
* Remove unused ci_oclint and ci_pvs_studio targets
No workflow invokes ci_oclint, ci_pvs_studio, or their tool discovery.
ci_oclint also had a side effect on every JSON_CI configure: it copied
the single header into src_single/all.cpp and added an add_executable()
for it without EXCLUDE_FROM_ALL, so a plain build compiled a 1.2 MB
translation unit that only that unused target consumed. ci_pvs_studio
duplicates the Makefile's pvs_studio target, which is kept.
Also drop the duplicate --check-level=exhaustive flag passed twice to
the same ci_cppcheck invocation.
Part of #5715
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
* Stop Dependabot from proposing astyle bumps
astyle is deliberately pinned at 3.4.13 because newer versions reformat
unrelated lines and this version defines the formatting that
check_amalgamation.yml enforces. Without an ignore rule, Dependabot
keeps opening PRs for every new astyle release (most recently #4580,
#4942, #5445, #5448), each of which fails the amalgamation check and
gets closed unmerged.
Part of #5715
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
* Move Linux arm64 CI from dead Cirrus CI to ubuntu-24.04-arm
Cirrus CI stopped reporting check runs on develop sometime after
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Niels Lohmann
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35802e78d6 |
Remove dead Makefile targets; document macro_builder; tidy serve_header (#5735)
* Remove dead doctest help entry and pretty_format target from Makefile The top-level Makefile still carried three leftovers: - The help text listed a "doctest" target that was removed in #4560, so "make doctest" fails with "No rule to make target". The example check now runs as "make check_output -C docs". - "pretty_format" ran clang-format on all sources, but .clang-format was deleted in #4573, so the target reformatted everything in the default LLVM style, against the Artistic Style formatting that "make pretty" applies and CI enforces. - "clean" removed benchmarks/files/numbers/*.json, a directory that no longer exists since the benchmarks moved to tests/benchmarks (#3462). Only maintainer tooling changes; the library is not affected. Part of #5717 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Document tools/macro_builder and tidy up serve_header.py tools/macro_builder generates the NLOHMANN_JSON_EXPAND, NLOHMANN_JSON_GET_MACRO and NLOHMANN_JSON_PASTE* macros in macro_scope.hpp, but nothing referred to it. Add a README that explains what it generates, how to run it and where the output goes, and which dependent tables (NLOHMANN_JSON_DOUBLE_PASTE, NLOHMANN_JSON_TYPE_BODY) are maintained by hand. Point to it from a comment above NLOHMANN_JSON_EXPAND. The generator itself is unchanged; following the README reproduces the header byte for byte. In serve_header.py, drop the LGTM suppression (LGTM.com shut down in 2022), replace the """.""" placeholder docstrings with real ones, and import socket and ssl at module level. DualStackServer.server_bind uses socket, which was only imported under __main__; when the module was imported instead, the NameError was swallowed and IPV6_V6ONLY was not cleared. The header change is a comment only; behavior, API and ABI are unchanged. Part of #5717 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Hash every release_files artifact, not a hardcoded subset The `release` target signed and copied json_fwd.hpp into release_files alongside json.hpp, but the shasum line that writes hashes.txt only listed json.hpp, include.zip and json.tar.xz. Users could not verify the published json_fwd.hpp against hashes.txt. Hash every file in release_files except the .asc signatures instead of naming files by hand, so a newly shipped header (such as the json_literals.hpp that #5610 adds to this target) cannot be missed again. Only affects the generated hashes.txt release artifact; the library itself is unaffected. Overlaps #5610, which touches the same lines to add json_literals.hpp to the release target. #5717 item 1 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Remove the broken fuzz_testing* Makefile targets fuzz_testing and fuzz_testing_{bon8,bson,cbor,msgpack,ubjson} seeded fuzz-testing/testcases from tests/data, which was removed in |
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Niels Lohmann
|
791cd88dfc |
Fix raw-TeX formulas and other documentation infrastructure debt (#5736)
* Fix math formulas rendering as raw TeX in the published docs The privacy plugin self-hosts MathJax 2.7.0 but drops its ?config=TeX-MML-AM_CHTML query string, so the rehosted script loads no input jax and the 10 formulas across 6 pages render as raw TeX to readers. Remove pymdownx.arithmatex and the MathJax extra_javascript entry, and rewrite the formulas in plain HTML (<sup>, <i>) instead. This also drops a nine-year-old third-party script from every page. Part of #5718 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix publish_documentation triggers and persist unneeded git credentials publish_documentation.yml only triggered on docs/mkdocs/** pushes, but the site also embeds .github/CODE_OF_CONDUCT.md, CONTRIBUTING.md, SECURITY.md, cmake/{clang,gcc}_flags.cmake, .clang-tidy, tools/astyle/.astylerc and tests/fmt_formatter/project/main.cpp via pymdownx.snippets, so changes to those files never republished the site. Extend the path filter to cover them, and switch runs-on from the long-pinned ubuntu-22.04 to ubuntu-latest to match ci_test_documentation. Also add persist-credentials: false to the checkouts in ci_icpx and ci_nvhpc (ubuntu.yml) and msvc-vs2026/msvc-arm64 (windows.yml), none of which pushes with git, matching every other checkout in these workflows. Part of #5718 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix example build: broken debug echo, deprecations hidden for everything docs/Makefile's debug echo used a space instead of a comma in $(call cxx_standard ...), so it always printed an empty standard. Every example was also compiled with -Wno-deprecated-declarations, which would silently hide an accidental deprecated-API call in any of them. Factor the duplicated compile flags into EXAMPLE_CPPFLAGS/ EXAMPLE_WARNFLAGS, build with -Werror=deprecated-declarations by default, and only allow the three examples that intentionally document deprecated API (the DEPRECATED_EXAMPLES list) to suppress it. Part of #5718 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix check_structure.py NOLINT parsing and an off-by-one report line `line.strip("<!-- NOLINT")` followed by `.strip(" -->")` strips any of the characters in those sets from both ends, not a literal prefix; it only happened to work for "Examples". A NOLINT'd section name starting with N, O, L, I or T (e.g. "Notes", "Template parameters", "Iterator invalidation", "Literals") was silently mangled, so the suppression did not apply and the checker could report a spurious missing/misordered section. Parse the comment with a regex instead. The same fragile strip() pattern was used for heading text; replace it with a plain prefix slice. Also fix the admonition_title report, which used the 0-based line index while every other report in the file uses lineno+1. Part of #5718 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix docset README's non-existent make target and stale fallback URL The README told readers to run `make nlohmann_json.docset`, but the Makefile's targets are `all`, `JSON_for_Modern_C++.docset` and `install_docset_zeal`; the documented command has failed with "No rule to make target" since #2967 (2021). Point the README at the real target and folder name. Info.plist's DashDocSetFallbackURL also still pointed at the old nlohmann.github.io/json/ URL instead of the canonical https://json.nlohmann.me/ from mkdocs.yml's site_url. Leave list_missing_pages/list_removed_paths alone: they may become redundant once #5638's check_docset() lands, which is a follow-up. Part of #5718 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Remove two leftover Doxygen-era .link files from the examples directory parse__iterator_pair.link and parse__pointers.link each held only a Wandbox "online" permalink from the old Doxygen docs. #3071 deleted every other .link file in 2021; these two came in through a parallel PR (#3100) and were never referenced by any page, script or config. Part of #5718 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix MacPorts CMake example to include its own snippet files The MacPorts "Example: CMake" block included integration/homebrew/example.cpp and integration/homebrew/CMakeLists.txt instead of the MacPorts files right next to it, a copy-paste slip from the Homebrew section. Nothing referenced integration/macports/CMakeLists.txt as a result. The page rendered correctly only because the homebrew, macports and vcpkg/CMakeLists.txt snippets are byte-identical, so a future edit to the MacPorts files would not have shown up on the page. Part of #5718 item 6 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Do not persist git credentials in publish_documentation's checkout The checkout step in publish_documentation.yml left the default persist-credentials: true, so GITHUB_TOKEN stayed writable in .git/config for the rest of the job (zizmor's artipacked finding). The Deploy documentation step authenticates through its own github_token input to peaceiris/actions-gh-pages and does not push with the checked-out credentials, so persist-credentials: false is safe here, matching every other checkout in the workflow set. Overlaps #5638, which edits this same checkout step (adds fetch-depth: 0); expect a rebase conflict there. Part of #5718 item 2 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Replace list_missing_pages/list_removed_paths with a comm(1)-based diff The docset Makefile's list_missing_pages ran one sqlite3 query per mkdocs page, and list_removed_paths nested a loop over all mkdocs pages inside a loop over all docset index paths (O(n*m) shell iteration). Issue #5718 item 5 suggested removing or reducing these targets once #5638's check_docset() lands, but that PR is still open and covers only API pages and macros, not the full page set these targets check. Replace the loops with two sorted path lists (DOCSET_PAGE_PATHS from mkdocs' markdown sources, DOCSET_INDEX_PATHS from the built docset index) compared with a single comm(1) call each, verified to produce output identical to the old loops against the current docSet.dsidx. The sed expression used '#' as its delimiter, which GNU Make reads as a comment character even inside a variable assignment, truncating the line and orphaning the closing paren of $(shell ...) ("unterminated call to function 'shell': missing ')'"). Use '@' as the delimiter instead. Part of #5718 item 5 Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
|
3b6ae43c53 |
Add JSON_DISABLE_TUPLE_REFERENCE_CONVERSION to fix std::tuple conversions (#5598)
* Add JSON_DISABLE_TUPLE_REFERENCE_CONVERSION to fix std::tuple conversions basic_json can be constructed from std::tuple<json&>, which it turns into a one-element array. Because of this, std::tuple picks its converting constructor that converts the whole source tuple instead of the element-wise one. As a result, std::tuple<const json&> built from std::forward_as_tuple(j) binds to a temporary (a compile error with libc++, a dangling reference with other standard libraries), and std::tuple<json> built the same way holds [j] instead of a copy of j. The new opt-in macro JSON_DISABLE_TUPLE_REFERENCE_CONVERSION (CMake option JSON_DisableTupleReferenceConversion) removes the conversion from a one-element tuple holding a reference to the same basic_json type, so std::tuple converts element-wise. It is off by default, so existing behavior is unchanged. It does not change any function body and therefore is not part of the ABI tag. Fixes #2226 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Convert one-element tuples to arrays on every compiler to_json for std::tuple assigns a braced list, j = { std::get<Idx>(t)... }. With a single element that is itself a basic_json, Apple clang 15 and 16 treat j = {x} as a copy of x, so std::tuple<json>{true} became true instead of [true]. The macOS jobs (Xcode 15.1, 16.1) failed the new checks in unit-disable-tuple-reference-conversion and unit-regression2. The one-element overload that already handles JSON_BRACE_INIT_COPY_SEMANTICS builds the array (or object, for a [string, value] element) explicitly, the same way the initializer-list constructor does. Use it unconditionally. The output is unchanged on compilers that already wrapped the element. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Skip json reference tuple tests on clang < 4 and GCC < 5 ci_test_compilers_gcc_old (4.8) and ci_test_compilers_clang (3.4) could not compile the new tuple tests. Creating a std::tuple of basic_json references, e.g. std::forward_as_tuple(j), makes these compilers instantiate basic_json's conversion operator for libstdc++'s internal tuple bases, which fails hard. This happens with and without JSON_DISABLE_TUPLE_REFERENCE_CONVERSION, so it is a limitation of these compilers, not of the new option. Tested with the CI images: clang 3.4 to 3.9 and GCC 4.8 and 4.9 fail, clang 4, 5, and 6 and GCC 5 and 6 compile all cases. Skip only the checks that create such tuples; the is_constructible checks still run. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
|
6fc0d501f3 |
Move the user-defined string literals to <nlohmann/json_literals.hpp> and add JSON_NO_AUTOMATIC_UDLS (#5610)
* Add JSON_NO_UDLS to leave out the user-defined string literals The bodies of operator""_json and operator""_json_pointer call the parser, so every translation unit including the library instantiates it, even if it never parses anything. Defining JSON_NO_UDLS leaves the literals out entirely, which saves 15-35% compile time for such translation units (#5294). Nothing changes if the macro is not defined. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Mention JSON_NO_UDLS in the list of exported module symbols Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Move the user-defined string literals to <nlohmann/json_literals.hpp> Following the review in #5294, the literals now live in their own header instead of being removed entirely: <nlohmann/json.hpp> includes it at the end unless JSON_NO_AUTOMATIC_UDLS (renamed from JSON_NO_UDLS) is defined, so a project can opt out globally and include the header only where the literals are used. The header only uses public and standard macros, because the library's internal macros are undefined at the end of json.hpp and the amalgamation inlines macro_scope.hpp only once. For the same reason, the library no longer defines and undefines JSON_USE_GLOBAL_UDLS, so a user's definition is still visible to the header. The single-header copy is identical to the multi-header one, as it only includes <nlohmann/json.hpp>. The module always exports the literals. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix CI: include cycle, GCC 4.8 literal operator spacing, and global UDLs off in the JSON_NO_AUTOMATIC_UDLS test - Suppress clang-tidy misc-header-include-cycle on the intentional mutual include of json.hpp and json_literals.hpp. - Use operator"" _json with a space for GCC 4.8 in the test's detection aliases, as the header does. - Only test the global literal operators when JSON_USE_GLOBAL_UDLS is on. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Declare the literal operators through a local macro The GCC 4.8 spacing condition was repeated for both operator definitions and the global using-declarations. NLOHMANN_JSON_LITERAL_OPERATOR(suffix) now selects operator""##suffix or operator"" suffix in one place and is undefined at the end of json_literals.hpp. Suggested by gregmarr in review. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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1e101ecac1 |
Add BON8 support (#2998)
* Add BON8 support Add to_bon8/from_bon8 and input_format_t::bon8 for BON8, a binary format that uses the byte values that cannot begin a UTF-8 character as type markers, so strings need no length prefix. It is the most compact of the supported binary formats on the benchmark files. The reader is non-recursive like the other binary readers. A string ends at the first byte that cannot continue it, so the reader hands the one or two bytes it reads past a string back to the value that follows. The writer produces the canonical representation of the specification, except for NFC normalization; its output is identical to that of the reference implementation (HikoGUI) on all files of the test data. The round-trip tests need the .bon8 files of json_test_data 3.2.0. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Address review comments - Reuse detail::validate_one_utf8 to check strings in to_bon8; the error now names the first byte of the invalid sequence. - Document that to_bon8 leaves bytes in the output adapter on an exception, and that string_open is only an output of write_bon8_marker. - Explain why the pushback buffer of the BON8 reader cannot overflow. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Select the BON8 float prefix by type get_bon8_float_prefix only depends on the type of its argument, so make the type a template parameter instead of passing an unused value. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Rename a test variable that Flawfinder mistakes for read() Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix the BON8 CI failures - compare the float in write_bon8_float with number_float_t constants, so GCC does not warn about a float-to-double conversion - mark check_bon8_utf8's context as used when exceptions are disabled - choose the compact float prefix in a helper rather than with nested conditional operators (clang-tidy) - use auto for the cast in the BON8 integer reader (clang-tidy) - write the int32 minimum test values as long long literals (MSVC C4146) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Amalgamate Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Read BON8 strings in bulk from contiguous input - copy the valid UTF-8 of a string in one step when the input is contiguous (twitter.json is read in 1.68 instead of 2.52 ms, jeopardy.json in 196 instead of 297 ms, close to CBOR and MessagePack) - share the new valid_utf8_prefix() with the writer's UTF-8 check, which now skips ASCII 8 bytes at a time - let the fuzzer check that contiguous and stream input give the same value or error, and test both paths in the unit tests - clarify that a second 0xFF after a string is an empty string Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Link the BON8 functions from the other binary format pages Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Name the bulk scan flag after the input, not BON8 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Read BSON keys in bulk from contiguous input BSON keys (and array indices) are C-style strings, which were read byte by byte. For contiguous input they are now read up to their \x00-byte in one step, using the same bulk_scan flag as BON8 strings: twitter.json is read in 1.46 instead of 2.01 ms, citm_catalog.json in 2.93 instead of 3.33 ms, jeopardy.json in 182 instead of 207 ms. canada.json, whose keys are almost all one-digit array indices, takes 2 % longer. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix the BON8 CI failures of the bulk-read tests - skip the contiguous-versus-stream tests of BON8 strings and BSON keys when exceptions are disabled: they catch the parse errors of invalid input, and without exceptions the library aborts instead - use static_cast for the int64 test value (google-readability-casting) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Move the explicit basic_json instantiation into its own test file Linking test-regression3_cpp20 with clang and MinGW failed with "relocation truncated to fit: IMAGE_REL_AMD64_REL32 against `.rdata'", as test-regression2 did before #5511. The explicit instantiation of basic_json<> for #4825 compiles every member function, including the BON8 reader and writer, into that object, and it was already close to the limit (2,226,104 bytes on develop, 2,234,960 with BON8; clang -O1, C++20). Give the instantiation a file of its own: unit-regression3 is now 1,594,736 bytes and unit-explicit_instantiation 1,095,064. The new file mentions JSON_HAS_CPP_17 and JSON_HAS_CPP_20 so it keeps being built for the C++17 standard the regression was about. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Convert the bytes of the BON8 test strings explicitly The str() helper constructed a std::string from a byte range, which converts each unsigned char implicitly; -fsanitize=integer reports that for bytes of 0x80 and above (ci_test_clang_sanitizer). Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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dependabot[bot]
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f422b753cc |
Bump the codeql-action group across 1 directory with 4 updates (#5576)
Bumps the codeql-action group with 4 updates in the / directory: [github/codeql-action/init](https://github.com/github/codeql-action), [github/codeql-action/autobuild](https://github.com/github/codeql-action), [github/codeql-action/analyze](https://github.com/github/codeql-action) and [github/codeql-action/upload-sarif](https://github.com/github/codeql-action). Updates `github/codeql-action/init` from 4.38.0 to 4.38.1 - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](https://github.com/github/codeql-action/compare/b96794f015dfd88f77b49b1c93e0fa7110f94c63...1c5b675653bb5c22dbe9b12b556ec555138e09fd) Updates `github/codeql-action/autobuild` from 4.38.0 to 4.38.1 - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](https://github.com/github/codeql-action/compare/b96794f015dfd88f77b49b1c93e0fa7110f94c63...1c5b675653bb5c22dbe9b12b556ec555138e09fd) Updates `github/codeql-action/analyze` from 4.38.0 to 4.38.1 - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](https://github.com/github/codeql-action/compare/b96794f015dfd88f77b49b1c93e0fa7110f94c63...1c5b675653bb5c22dbe9b12b556ec555138e09fd) Updates `github/codeql-action/upload-sarif` from 4.38.0 to 4.38.1 - [Release notes](https://github.com/github/codeql-action/releases) - [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md) - [Commits](https://github.com/github/codeql-action/compare/b96794f015dfd88f77b49b1c93e0fa7110f94c63...1c5b675653bb5c22dbe9b12b556ec555138e09fd) --- updated-dependencies: - dependency-name: github/codeql-action/analyze dependency-version: 4.38.1 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: codeql-action - dependency-name: github/codeql-action/autobuild dependency-version: 4.38.1 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: codeql-action - dependency-name: github/codeql-action/init dependency-version: 4.38.1 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: codeql-action - dependency-name: github/codeql-action/upload-sarif dependency-version: 4.38.1 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: codeql-action ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> |
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Niels Lohmann
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a9ab2a62ba |
Cancel superseded runs of the remaining workflows (#5579)
Ubuntu, Windows, macOS, and CodeQL already cancel an older run of the same workflow on the same ref. Check amalgamation, CIFuzz, Dependency Review, Flawfinder, Semgrep, Scorecard, and the labeler did not, so every push to a pull request left their earlier runs going. Give them the same concurrency group. The labeler runs on pull_request_target, where github.ref is the base branch, so it groups by pull request number. Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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ad2c14b985 |
Document response times, supported versions, access, secrets, and dependency policies (#5580)
Answer the OpenSSF Best Practices criteria that asked for policies the project follows but had not written down: - SECURITY.md: a first response within 14 days, publishing an advisory with credit once a fix is released, and that only the latest release receives security fixes. - Governance: who has access to the project's resources, how write or admin access is granted, and how CI secrets are stored and rotated. - Quality assurance: how dependencies of the build, test, and documentation tooling are pinned, scanned, and kept free of known vulnerabilities. Also update the assurance case, since comparison no longer recurses per nesting level (#5390), and point the best practices badge and links to bestpractices.dev under the program's current name. Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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cc472af13f |
Check the fuzzers' UBJSON/BJData round-trip invariants in the unit tests (#5569)
* Check the fuzzers' UBJSON/BJData round-trip invariants in the unit tests The strongest correctness checks for the UBJSON and BJData writers lived only in the OSS-Fuzz drivers: anything from_ubjson()/from_bjdata() returns must serialize with every option combination, parse back, and re-serialize stably. Those checks only run at OSS-Fuzz, so regressions surfaced days later as external reports - the same BJData assert pair was reported five times over three years, and #5494's harness change was followed by OSS-Fuzz 563659413 within a day. Add "UBJSON round-trip invariants" and "BJData round-trip invariants" test cases that run the drivers' checks on a fixed, deterministic corpus (tests/src/round_trip_corpus.hpp): integer and float boundaries, non-finite numbers, strings, binary values, optimized containers, deep nesting, the JData annotated-array matrix, and seeded random containers. They also check two properties the drivers do not: the first round trip preserves the value, and re-serializing reproduces the exact bytes. For BJData both exclude values containing a binary value, which is read back as an array of integers unless it was written as a Draft 3 optimized binary array; this carve-out is now documented in bjdata.md. Run against the headers before #5542, the BJData test fails, including on the shape from OSS-Fuzz 563659413. Also document how OSS-Fuzz reports are handled (reference them as "OSS-Fuzz: <id>", turn the reproducer into a unit test, keep drivers and unit tests in sync) in tests/fuzzing.md, and link it from the PR template and the quality assurance page. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Add the OSS-Fuzz reproducers for 474400817 and 474480402 as unit tests Following the convention added to tests/fuzzing.md, the reproducers of the two BJData fuzzer asserts tracked since January are now unit tests: - 474400817 (assert(false)): an empty object _ArraySize_ was written as the ND-array header length, which from_bjdata() could not read back. Fixed by #5455. - 474480402 (to_bjdata(j2, false, false) == vec2): a one-byte Draft 3 binary array is written in Draft 2 mode as a uint8 array and then re-serialized with the int8 marker. This is the documented exception to byte stability, not a library bug; OSS-Fuzz closed it after #5494 relaxed the harness to value stability. The test pins the exact bytes so the exception stays deliberate. The 563659413 reproducer is already a unit test (#5542). A comment also ties the existing UBJSON excessive-count test to the timeout OSS-Fuzz reported for that shape (testcase 6347769435193344). OSS-Fuzz: 474400817 OSS-Fuzz: 474480402 Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix GCC -Weffc++ and -Wuseless-cast warnings in the round-trip corpus Initialize the atoms in the member initialization list, and drop the cast of the generator's result, which already is std::size_t on 64-bit Linux. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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f290b36ad2 |
Fix CI: use VS 2026 on windows-11-arm and use raw string literals in tests (#5575)
The windows-11-arm runner image moved to windows-11-vs2026-arm64, which no longer ships Visual Studio 2022, so the msvc-arm64 job failed at configure time. Use the "Visual Studio 18 2026" generator like the msvc2026 job. clang-tidy's modernize-raw-string-literal check flagged two string literals in the nesting tests added by #5546 and #5547. Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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305ca7dadd |
Add missing headers to BUILD.bazel and check it in CI (#5554)
* Add missing headers to BUILD.bazel and make its generator reproduce it The "json" cc_library did not list three headers that the library includes: - detail/meta/logic.hpp (added in #5016, included by from_json.hpp) - detail/input/number_parse.hpp (added in #5283, included by lexer.hpp) - detail/input/string_scan.hpp (added in #5283, included by lexer.hpp and serializer.hpp) Bazel's sandbox only exposes declared headers, so any target depending on @nlohmann_json//:json and including <nlohmann/json.hpp> failed with "'nlohmann/detail/meta/logic.hpp' file not found". The file could not simply be regenerated, because the generator behind "make BUILD.bazel" was stale: it wrote only the "json" cc_library and dropped the load() statements, the license block, and the "singleheader-json" target that were added by hand in #4584. The generator now emits the complete file, so its output differs from the previous BUILD.bazel only by the three headers. It also resolves the glob against the project root instead of the working directory and sorts the list explicitly. "make BUILD.bazel" is now phony: in a fresh checkout, BUILD.bazel is not older than the headers, so make considered it up to date, and a removed header would never trigger a rebuild. "make check-amalgamation" also checks that BUILD.bazel is up to date. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Check in CI that BUILD.bazel is up to date The "Check amalgamation" workflow now also regenerates BUILD.bazel, so a pull request that adds, renames, or removes a header without updating the Bazel header list fails, and the attached amalgamation.patch contains the fix. The failure comment and the contribution guidelines mention the new check, and the comment now links to the existing "Amalgamate the source code" section instead of the "Files to change" anchor that was removed in #4560. Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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Niels Lohmann
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5f659c881a |
Let the labeler assign "aspect: binary formats", "python" and more "CI" (#5557)
- "aspect: binary formats" for changes to the binary reader or writer, their tests, fuzzers and docs, or with a binary format in the title; - "python" for Python sources and pip requirements files, matching the label Dependabot sets on its pip updates, so it is never removed there; - "CI" also for changes to the Dependabot and labeler configurations. Signed-off-by: Niels Lohmann <mail@nlohmann.me> |
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 Niels LohmannandClaude Sonnet 5
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56b3ee566c |
Fix stack overflow when copying a deeply nested value (#5387) (#5389)
* Bound the descent of the copy constructor basic_json's copy constructor copied objects and arrays by handing the container to its own copy constructor, which copy-constructs every element and so reaches this constructor again, once per nesting level. A value nested deeply enough exhausted the call stack and terminated the process with a segmentation fault - no exception, nothing the caller could catch. Parsing such a value works, as the parser is iterative, and so does destroying one, as #1436 made destruction iterative. Bound how far the copy descends rather than take the call stack away from it. The first levels are copied exactly as they were - the containers copy their own elements, which is by far the fastest way to fill them - and only once the copy has descended 128 levels is the value below it finished without the call stack, through an explicit worklist. Copying can therefore no longer exhaust the stack, however deeply a value is nested, while a value nested less deeply than the bound - all but a vanishing minority - is copied by the very same code as before and pays only for one counter. That counter lives in thread_local storage, as one shared between threads would be raced. JSON_NO_THREAD_LOCAL switches it off for toolchains without thread_local; copying then goes through the worklist right away, which yields the same values but is measurably slower. The deferred values are completed before the copy they belong to returns, so a value copied while another copy is going on - by a custom base class, say - is unaffected by the copy it is nested in. operator= takes its argument by value, so copy assignment is fixed as well. Copying is as fast as it was, within measurement noise (medians of 9 interleaved runs, clang -O3): -1.3% for an array of strings, +0.0% for a flat object, +0.1% for a flat array of numbers, +0.3% for nested arrays, +0.6% for nested objects and +1.2% for a twitter-like document. Copying a three-key object costs about ten nanoseconds more, the counter. Deferring every level instead, rather than only those below the bound, measured between 3% and 9% slower depending on the shape of the value. This fixes #5387 for the copy constructor. dump() is still recursive. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Test the copy constructor's iterative path in CI The copy constructor descends into 128 levels before it finishes a value without the call stack, so the iterative path is otherwise only reached by the few tests that nest deeper than that. JSON_NO_THREAD_LOCAL switches the descent off, which sends every value down that path. Running the whole test suite that way covers it with every object type, string type, allocator, and base class the suite already exercises. The new ci_test_no_thread_local target does that; the macro had no build coverage at all before. Copying a nested value also has to carry over what the element-wise copy constructor would have copied: the parents that JSON_DIAGNOSTICS relies on, and the positions that JSON_DIAGNOSTIC_POSITIONS reports. Both are now checked on either side of the descent bound, for objects and arrays. Neither was tested before, and dropping either one makes the new tests fail. Also quantify what JSON_NO_THREAD_LOCAL costs a copy instead of calling it "measurably slower". Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Split the regression tests so that they keep linking Linking test-regression2 fails with "relocation truncated to fit: IMAGE_REL_AMD64_REL32 against `.rdata'" once its object grows past what the MinGW linker copes with, and the copy constructor's helpers push it over: the object grows by 6.3%, from 4,654,128 to 4,944,920 bytes at -O0, and develop links at the smaller of the two. Building the tests optimized shrinks the object enough to link, but the binaries clang 11.0.1 and clang 18.1.8 then produce crash before doctest prints its first line - 39 of 102 tests on clang 18 - so the objects have to become smaller rather than denser. Moving the test cases that follow "regression tests 2" into a file of their own brings that object to 4,687,888 bytes, which is 0.7% above the size that links today rather than 6.3%. Both files still build for C++11, C++17 and C++20, and run the same 9 test cases and 135 assertions as before, now spread over two binaries. New regression tests belong in unit-regression3.cpp from here on, which is what CONTRIBUTING.md now says. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Do not use thread_local storage with Clang targeting MinGW Every test that copies a value segfaults there - 42 of 105 on clang 11.0.1, 39 of 102 on clang 18.1.8 - while the same tests pass with GCC targeting MinGW, with Clang targeting MSVC, and with every other toolchain the library is tested on. The counter that bounds the copy constructor's descent is the library's first use of thread_local, so that job had never exercised it before. JSON_NO_THREAD_LOCAL already covers toolchains without thread_local storage, and copying yields the same values with it, only more slowly. Define it for this one automatically. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Balance the warning suppression the split separated unit-regression2.cpp opens a DOCTEST_CLANG_SUPPRESS_WARNING_PUSH block at the top and closed it at the very bottom, which the split moved into unit-regression3.cpp: one file was left with a push and no pop, the other with a pop and no push, which clang reports as an error. Give each file the pair it needs. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Check both shapes without a C-style array clang-tidy rejects the array the two shapes were iterated over (cppcoreguidelines-avoid-c-arrays). The array only existed because astyle reformats a range-for over a braced initializer list into something unreadable; naming the two cases avoids both. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Split the regression tests far enough to leave room The first split left unit-regression2.cpp 0.7% below the size develop links at, which the comparison change in the follow-up immediately used up: the MinGW linker fails on test-regression2_cpp20 again, naming copy_shallow and to_partial_ordering among the relocations it cannot fit. Move the sections from "issue #2067" on, and the helper types they use, so that the file stops being the one that decides whether the tests can be linked at all. At -O0 and C++20, unit-regression2.cpp is now 2,964,944 bytes against develop's 4,708,248, and 3,070,568 bytes with the follow-up applied - roughly a third smaller either way, rather than a fraction of a percent larger. The 135 assertions are the same ones as before, now spread over three test cases in two files. Also silence the clang-tidy findings the deep-nesting tests draw: the copies they make are what is being tested, and the reserve() computation gets its parentheses. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Move the #4804 alias to the file that uses it The split left the json_4804 alias behind in unit-regression2.cpp while the test case that uses it went to unit-regression3.cpp, which does not build for C++17 and C++20 as a result. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Include <span> where the split moved its only use The #2546 test case guards itself with __has_include(<span>), but the include itself sat in unit-regression2.cpp's preamble and stayed behind, so the section compiled without a declaration wherever the guard passed - which nvhpc reported and libc++ builds do not, as they skip the section altogether. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Keep the descent bookkeeping in one place Copying carried a depth count, a depth limit and a guard of its own, and the comparison in the follow-up added a second set beside them. Neither operation needs its own: they are never nested inside one another by the library - copying a value does not compare one, and comparing two values does not copy them - and where user code nests them anyway, sharing the count only ends a descent sooner than it had to. So there is now one nesting_depth(), one nesting_depth_limit() and one nesting_depth_guard, which the follow-up uses instead of adding its own. Inverting the test in copy_structured leaves the too-deep case and the no-thread-local case as the same code. The guard takes the count rather than looking it up, because the caller has looked it up already to test it against the limit, and reaching thread-local storage twice on the path that is taken almost every time is worth avoiding. The switch that copies the value of anything that is not an object or an array was written twice - once in the copy constructor, once in copy_shallow - so that adding a value_t meant editing both, and missing one would have been silent. It is copy_leaf_value now, and inlined: both callers have already sorted the containers out, and folding that test into the switch is what keeps a value made mostly of numbers copying as fast as it did. Copying canada.json, citm_catalog.json and twitter.json is within 0.6% of what it was before, measured as a paired ratio over 18 interleaved rounds against a run-to-run spread of 0.3%. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Check that an abandoned copy can still be destroyed Copying a value without the call stack builds the copy from the top down, and every value whose own copy has not been made yet stays a null value until it is. That is what lets a copy be abandoned half-built: the destructor finds nothing but complete values and null ones. Nothing tested it. Failing an allocation part-way through a copy of a deeply nested value does, with the allocator the file already has for exactly this kind of test. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Name the test's locals so Flawfinder stops matching them The code scanning job reports CWE-362 - "check when opening files" - for a test that opens no files: Flawfinder matched a local variable called open. Rename it and its partner. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Keep the descent guard's bookkeeping self-contained nesting_depth_limit() and nesting_depth_guard were only used inside the JSON_NO_THREAD_LOCAL-guarded branch of copy_structured(), but were defined unconditionally. Move them inside the #ifndef, and have the guard look up the depth and test it against the limit itself (via okay()) instead of making the caller do it - the caller no longer needs to touch nesting_depth() at all. Also shrink the thread-local counter to std::uint8_t, matching what its own doc comment already argued. Addresses gregmarr's review comments on #5389. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Make nesting_depth_guard usable regardless of JSON_NO_THREAD_LOCAL nesting_depth_limit() and nesting_depth() stay behind #ifndef JSON_NO_THREAD_LOCAL, since a descent cannot be bounded without a per-thread count. But the guard itself now always exists, becoming a no-op that is never okay() under that macro - the same way the bound is already reached on every call without one. copy_structured() no longer needs to know which case it is in. This is what lets #5390 reuse the guard for comparison, which cannot test JSON_NO_THREAD_LOCAL where the macro-based operators use it: the guard now carries that distinction itself instead of requiring every caller to. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Silence VS2015's C4503 for the custom-base-class test The deep-copy support added for #5387 lengthened the mangled name of std::allocator_traits<...>::construct for the test's map type past VS2015's limit, which /WX turns into a build failure even though the name is only used for (now-truncated) debug info. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Remove dead unused-parameter casts from copy_metadata() @gregmarr asked whether the static_cast<void> pair in the JSON_DIAGNOSTIC_POSITIONS-off branch was needed for an empty json_base_class_t. It isn't: src and dst are already referenced unconditionally by the base-class copy above, so no -Wunused-parameter warning fires either way (checked with -Wall -Wextra -Wunused-parameter, JSON_DIAGNOSTIC_POSITIONS 0 and 1). Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix CI: build custom array types without a fill constructor, re-amalgamate copy_array_level() built the destination array with the fill constructor array_t(count, value), which is not part of the array container interface the library otherwise assumes (e.g. custom ArrayTypes that only provide a default and an iterator-pair constructor, as covered by unit-custom-array-type.cpp). Default- construct the array and resize() it instead, matching how the rest of the codebase already grows array_t. Also re-run the amalgamation, which had fallen out of sync with include/nlohmann/json.hpp. Signed-off-by: Niels Lohmann <mail@nlohmann.me> Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com> |