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====================================================
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Extra Clang Tools |release| |ReleaseNotesTitle|
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====================================================
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.. contents::
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:local:
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:depth: 3
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Written by the `LLVM Team <https://llvm.org/>`_
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.. only:: PreRelease
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.. warning::
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These are in-progress notes for the upcoming Extra Clang Tools |version| release.
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Release notes for previous releases can be found on
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`the Download Page <https://releases.llvm.org/download.html>`_.
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Introduction
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============
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This document contains the release notes for the Extra Clang Tools, part of the
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Clang release |release|. Here we describe the status of the Extra Clang Tools in
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some detail, including major improvements from the previous release and new
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feature work. All LLVM releases may be downloaded from the `LLVM releases web
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site <https://llvm.org/releases/>`_.
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For more information about Clang or LLVM, including information about
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the latest release, please see the `Clang Web Site <https://clang.llvm.org>`_ or
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the `LLVM Web Site <https://llvm.org>`_.
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Note that if you are reading this file from a Git checkout or the
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main Clang web page, this document applies to the *next* release, not
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the current one. To see the release notes for a specific release, please
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see the `releases page <https://llvm.org/releases/>`_.
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What's New in Extra Clang Tools |release|?
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==========================================
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Some of the major new features and improvements to Extra Clang Tools are listed
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here. Generic improvements to Extra Clang Tools as a whole or to its underlying
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infrastructure are described first, followed by tool-specific sections.
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Major New Features
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------------------
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...
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Improvements to clangd
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----------------------
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Inlay hints
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^^^^^^^^^^^
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Diagnostics
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^^^^^^^^^^^
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- Improved Fix-its of some clang-tidy checks when applied with clangd.
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Semantic Highlighting
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^^^^^^^^^^^^^^^^^^^^^
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Compile flags
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^^^^^^^^^^^^^
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Hover
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^^^^^
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Code completion
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^^^^^^^^^^^^^^^
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Signature help
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^^^^^^^^^^^^^^
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Cross-references
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^^^^^^^^^^^^^^^^
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Objective-C
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^^^^^^^^^^^
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Miscellaneous
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^^^^^^^^^^^^^
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Improvements to clang-doc
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-------------------------
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The improvements are...
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Improvements to clang-query
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---------------------------
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The improvements are...
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Improvements to clang-rename
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----------------------------
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The improvements are...
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Improvements to clang-tidy
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--------------------------
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- Added trace code to help narrow down any checks and the relevant source code
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that result in crashes.
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- Clang-tidy now consideres newlines as separators of single elements in the `Checks` section in
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`.clang-tidy` configuration files. Where previously a comma had to be used to distinguish elements in
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this list from each other, newline characters now also work as separators in the parsed YAML. That
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means it is advised to use YAML's block style initiated by the pipe character `|` for the `Checks`
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section in order to benefit from the easier syntax that works without commas.
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New checks
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^^^^^^^^^^
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- New :doc:`bugprone-shared-ptr-array-mismatch <clang-tidy/checks/bugprone-shared-ptr-array-mismatch>` check.
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Finds initializations of C++ shared pointers to non-array type that are initialized with an array.
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- New :doc:`modernize-macro-to-enum
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<clang-tidy/checks/modernize-macro-to-enum>` check.
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Replaces groups of adjacent macros with an unscoped anonymous enum.
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- New :doc:`portability-std-allocator-const <clang-tidy/checks/portability-std-allocator-const>` check.
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Report use of ``std::vector<const T>`` (and similar containers of const
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elements). These are not allowed in standard C++ due to undefined
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``std::allocator<const T>``. They do not compile with libstdc++ or MSVC.
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Future libc++ will remove the extension (`D120996
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<https://reviews.llvm.org/D120996>`).
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New check aliases
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^^^^^^^^^^^^^^^^^
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- New alias :doc:`cppcoreguidelines-macro-to-enum
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<clang-tidy/checks/cppcoreguidelines-macro-to-enum>` to :doc:`modernize-macro-to-enum
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<clang-tidy/checks/modernize-macro-to-enum>` was added.
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Changes in existing checks
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^^^^^^^^^^^^^^^^^^^^^^^^^^
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- Fixed a crash in :doc:`bugprone-sizeof-expression
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<clang-tidy/checks/bugprone-sizeof-expression>` when `sizeof(...)` is
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compared against a `__int128_t`.
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- Improved :doc:`cppcoreguidelines-prefer-member-initializer
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<clang-tidy/checks/cppcoreguidelines-prefer-member-initializer>` check.
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Fixed an issue when there was already an initializer in the constructor and
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the check would try to create another initializer for the same member.
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- Fixed a crash in :doc:`llvmlibc-callee-namespace
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<clang-tidy/checks/llvmlibc-callee-namespace>` when executing for C++ code
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that contain calls to advanced constructs, e.g. overloaded operators.
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- Fixed a false positive in :doc:`misc-redundant-expression
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<clang-tidy/checks/misc-redundant-expression>` involving overloaded
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comparison operators.
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- Fixed a false positive in :doc:`misc-redundant-expression
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<clang-tidy/checks/misc-redundant-expression>` involving assignments in
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conditions. This fixes `Issue 35853 <https://github.com/llvm/llvm-project/issues/35853>`_.
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- Fixed a crash in :doc:`readability-const-return-type
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<clang-tidy/checks/readability-const-return-type>` when a pure virtual function
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overrided has a const return type. Removed the fix for a virtual function.
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- Fixed a false positive in :doc:`readability-non-const-parameter
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<clang-tidy/checks/readability-non-const-parameter>` when the parameter is
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referenced by an lvalue.
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- Improved :doc:`performance-inefficient-vector-operation
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<clang-tidy/checks/performance-inefficient-vector-operation>` to work when
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the vector is a member of a structure.
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- Fixed nonsensical suggestion of :doc:`altera-struct-pack-align
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<clang-tidy/checks/altera-struct-pack-align>` check for empty structs.
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- Fixed incorrect suggestions for :doc:`readability-container-size-empty
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<clang-tidy/checks/readability-container-size-empty>` when smart pointers are involved.
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- Fixed some false positives in :doc:`bugprone-infinite-loop
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<clang-tidy/checks/bugprone-infinite-loop>` involving dependent expressions.
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Removed checks
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^^^^^^^^^^^^^^
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Improvements to include-fixer
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-----------------------------
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The improvements are...
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Improvements to clang-include-fixer
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-----------------------------------
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The improvements are...
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Improvements to modularize
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--------------------------
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The improvements are...
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Improvements to pp-trace
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------------------------
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The improvements are...
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Clang-tidy Visual Studio plugin
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-------------------------------
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