101 Commits

Author SHA1 Message Date
Jacques Pienaar
18302d02fb
[clang-tidy][mlir] Make rewrite more conservative. (#150757)
Don't create a fix where object invoked on is a temporary object as
create method requires a reference.
2025-07-28 11:18:52 -07:00
Michał Górny
fa79c23ecc
[clang-tidy] Fix linking regression in clangTidyLLVMModule (#150769)
Fix the regression introduced in #149148 that incorrectly explicitly
linked `clangTransformer` when dylib was used. As a result, the
executables linking to `clangTidyLLVMModule` would end up linking both
the dylib and a number of static clang libraries, leading to complete
mayhem and undecipherable segmentation faults.

Signed-off-by: Michał Górny <mgorny@gentoo.org>
2025-07-26 17:22:18 +02:00
Jacques Pienaar
3feb6f9715
[clang-tidy] Add MLIR check for old op builder usage. (#149148)
Upstream is moving towards new create method invocation, add check to flag old
usage that will be deprecated.

---------

Co-authored-by: Baranov Victor <bar.victor.2002@gmail.com>
Co-authored-by: EugeneZelenko <eugene.zelenko@gmail.com>
2025-07-24 15:48:05 +02:00
Baranov Victor
45f7285d0e
[clang-tidy] Use lexical anon-ns matcher in llvm-prefer-static-over-anonymous-namespace (#148357)
When having this code:
```cpp
namespace {
class MyClassOutOfAnon {
public:
  MyClassOutOfAnon();
} // namespace

MyClassOutOfAnon::MyClassOutOfAnon() {}
```
`MyClassOutOfAnon::MyClassOutOfAnon` is located in anonymous namespace
in `DeclContext` but outside anonymous namespace in
`LexicalDeclContext`.

For this check to work correctly, we need to check if definition is
located inside `LexicalDeclContext`.
2025-07-12 20:05:05 +03:00
Baranov Victor
2f4a804e6e
[clang-tidy] Add new check llvm-prefer-static-over-anonymous-namespace (#142839)
Finds function and variable declarations inside anonymous namespace and
suggests replacing them with ``static`` declarations.

The check will enforce that
[restrict-visibility](https://llvm.org/docs/CodingStandards.html#restrict-visibility)
rule in LLVM Coding Standards is followed correctly (by adding `static`
to functions instead of putting them in anonimous namespace).

The check has additional levels of "strictness" represented by Options.
By default, the check works in the most relaxed way by giving warning
only for methods and functions defined in anonymous namespaces. Also, It
finds `static` functions that are placed inside anonymous namespace -
there is no point in keeping them inside.
2025-07-12 09:56:30 +03:00
Baranov Victor
94877ce1b4
[clang-tidy][NFC] fix 'misc-use-internal-linkage' check warnings (#143482)
Run misc-use-internal-linkage check over clang-tidy code. 
Also fixed a couple of other clang-tidy warnings.

Apart from issues in header files, all '.cpp' in
`clang-tools-extra/clang-tidy` must be clang-tidy clear now.
2025-06-10 23:23:37 +03:00
Baranov Victor
5213c57cb1
[clang-tidy][NFC] run clang-format over clang-tidy checks and tool code. (#143324) 2025-06-09 21:54:48 +03:00
Kazu Hirata
ba007a60d0
[clang-tidy] Remove unused includes (NFC) (#141420)
These are identified by misc-include-cleaner.  I've filtered out those
that break builds.  Also, I'm staying away from llvm-config.h,
config.h, and Compiler.h, which likely cause platform- or
compiler-specific build failures.
2025-05-25 10:55:36 -07:00
Kazu Hirata
05674b21fe
[clang-tidy] Use std:::string::find with std::string_view (NFC) (#141188)
std::string::rfind accepts anything that can be converted to
std::string_view starting in C++17.  Since StringRef can be converted
to std::string_view, we do not need to create a temporary instance of
std::string here.
2025-05-22 23:50:55 -07:00
Kazu Hirata
ab1fea49e2
[clang-tools-extra] Use llvm::replace (NFC) (#140200) 2025-05-16 07:30:46 -07:00
Thomas Fransham
1f2c08b33b
[clang-tools-extra] Fix add_clang_library usage (#109321)
If a add_clang_library call doesn't specify building as static or shared
library they are implicitly added to the list static libraries that is
linked in to clang-cpp shared library here.

315ba77406/clang/cmake/modules/AddClang.cmake (L107)
Because the clang-tools-extra libraries targets were declared after
clang-cpp they by luck never got linked to clang-cpp.
This change is required for clang symbol visibility macros on windows to
work correctly for clang tools since we need to distinguish if a target
being built will be importing or exporting clang symbols from the
clang-cpp DLL.
2024-10-08 09:22:19 +03:00
Jan Svoboda
da95d926f6
[clang][lex] Always pass suggested module to InclusionDirective() callback (#81061)
This patch provides more information to the
`PPCallbacks::InclusionDirective()` hook. We now always pass the
suggested module, regardless of whether it was actually imported or not.
The extra `bool ModuleImported` parameter then denotes whether the
header `#include` will be automatically translated into import the the
module.

The main change is in `clang/lib/Lex/PPDirectives.cpp`, where we take
care to not modify `SuggestedModule` after it's been populated by
`LookupHeaderIncludeOrImport()`. We now exclusively use the `SM`
(`ModuleToImport`) variable instead, which has been equivalent to
`SuggestedModule` until now. This allows us to use the original
non-modified `SuggestedModule` for the callback itself.

(This patch turns out to be necessary for
https://github.com/apple/llvm-project/pull/8011).
2024-02-08 10:19:18 -08:00
Carlos Galvez
cc38cd856d
[clang-tidy] Remove check-specific HeaderFileExtensions and Implement… (#80333)
…ationFileExtensions

Deprecated since clang-tidy 17. Use the corresponding global options
instead.

Fixes #61947

---------

Co-authored-by: Carlos Gálvez <carlos.galvez@zenseact.com>
2024-02-02 21:48:21 +01:00
Kazu Hirata
76bbbcb41b [clang-tidy] Use StringRef::{starts,ends}_with (NFC)
This patch replaces uses of StringRef::{starts,ends}with with
StringRef::{starts,ends}_with for consistency with
std::{string,string_view}::{starts,ends}_with in C++20.

I'm planning to deprecate and eventually remove
StringRef::{starts,ends}with.
2023-12-13 23:11:05 -08:00
Piotr Zegar
cbdc3e1bf9 [clang-tidy][NFC] Fix cppcoreguidelines-init-variables findings
Fix issues found by clang-tidy in clang-tidy source directory.
2023-08-27 11:59:03 +00:00
Piotr Zegar
7365802efa [clang-tidy][NFC] Fix modernize-use-default-member-init findings
Fix issues found by clang-tidy in clang-tidy source directory.
2023-08-27 08:52:11 +00:00
Piotr Zegar
87c4113708 [clang-tidy][NFC] Fix modernize-use-using findings
Fix issues found by clang-tidy in clang-tidy source directory.
2023-08-27 08:52:10 +00:00
Jon Roelofs
2fb1c1082c
cmake: add missing dependencies on ClangDriverOptions tablegen
The modules build trips over this frequently because there is no textual
include of the tablegen output, but the module includes it.

Differential revision: https://reviews.llvm.org/D157119
2023-08-04 10:27:19 -07:00
Nathan James
df0c8f2514
[clang-tidy][NFC] Remove redundant allOf matcher calls
Remove calls to the `allOf` matcher in all matchers that are derived from the `VariadicDynCastAllOfMatcher`.
2023-04-11 00:38:37 +01:00
Carlos Galvez
4718da5060 [clang-tidy][NFC] Use C++17 nested namespaces in clang-tidy headers
We forgot to apply the change to headers in the previous patch,
due to missing "-header-filter" in the run-clang-tidy invocation.

Differential Revision: https://reviews.llvm.org/D142307
2023-01-23 21:23:16 +00:00
Carlos Galvez
7d2ea6c422 [clang-tidy][NFC] Use C++17 nested namespaces in the clang-tidy folder
Fix applied by running:

run-clang-tidy.py -checks=-*,modernize-concat-nested-namespaces

Differential Revision: https://reviews.llvm.org/D141770
2023-01-14 18:51:39 +00:00
Benjamin Kramer
854c10f8d1 [Clang] Prepare for llvm::Optional becoming std::optional.
The needed tweaks are mostly trivial, the one nasty bit is Clang's usage
of OptionalStorage. To keep this working old Optional stays around as
clang::CustomizableOptional, with the default Storage removed.
Optional<File/DirectoryEntryRef> is replaced with a typedef.

I tested this with GCC 7.5, the oldest supported GCC I had around.

Differential Revision: https://reviews.llvm.org/D140332
2022-12-20 00:41:40 +01:00
Krzysztof Parzyszek
205c0589f9 Revert "[clang] Convert OptionalFileEntryRefDegradesToFileEntryPtr to std::optional"
This reverts commit 8f0df9f3bbc6d7f3d5cbfd955c5ee4404c53a75d.

The Optional*RefDegradesTo*EntryPtr types want to keep the same size as
the underlying type, which std::optional doesn't guarantee. For use with
llvm::Optional, they define their own storage class, and there is no way
to do that in std::optional.

On top of that, that commit broke builds with older GCCs, where
std::optional was not trivially copyable (static_assert in the clang
sources was failing).
2022-12-18 11:23:54 -08:00
Krzysztof Parzyszek
8f0df9f3bb [clang] Convert OptionalFileEntryRefDegradesToFileEntryPtr to std::optional 2022-12-17 15:24:14 -08:00
Dmitri Gribenko
aba43035bd Use llvm::sort instead of std::sort where possible
llvm::sort is beneficial even when we use the iterator-based overload,
since it can optionally shuffle the elements (to detect
non-determinism). However llvm::sort is not usable everywhere, for
example, in compiler-rt.

Reviewed By: nhaehnle

Differential Revision: https://reviews.llvm.org/D130406
2022-07-23 15:19:05 +02:00
Richard
6e566bc552 [clang-tidy] Organize check doc files into subdirectories (NFC)
- Rename doc files to subdirs by module
- Update release notes and check list to use subdirs
- Update add_new_check.py to handle doc subdirs

Differential Revision: https://reviews.llvm.org/D126495
2022-06-16 16:06:20 -06:00
Jan Svoboda
d79ad2f1db [clang][lex] NFCI: Use FileEntryRef in PPCallbacks::InclusionDirective()
This patch changes type of the `File` parameter in `PPCallbacks::InclusionDirective()` from `const FileEntry *` to `Optional<FileEntryRef>`.

With the API change in place, this patch then removes some uses of the deprecated `FileEntry::getName()` (e.g. in `DependencyGraph.cpp` and `ModuleDependencyCollector.cpp`).

Reviewed By: dexonsmith, bnbarham

Differential Revision: https://reviews.llvm.org/D123574
2022-04-14 10:46:12 +02:00
Kadir Cetinkaya
0447ec2fb0
[clang-tidy] Fix LLVM include order check policy
Clang-format LLVM style has a custom include category for gtest/ and
gmock/ headers between regular includes and angled includes. Do the same here.

Fixes https://github.com/llvm/llvm-project/issues/53525.

Differential Revision: https://reviews.llvm.org/D118913
2022-02-03 17:32:43 +01:00
Salman Javed
b4f6f1c936 [clang-tidy] Fix llvm-header-guard so that it works with Windows paths
Fixes pr40372 (https://bugs.llvm.org/show_bug.cgi?id=40372).

The llvm-header-guard check does not take into account that the path
separator on Windows is `\`, not `/`.

This means that instead of suggesting a header guard in the form of:
LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_FOO_H

it incorrectly suggests:
C:\LLVM_PROJECT\CLANG_TOOLS_EXTRA\CLANG_TIDY\FOO_H

Differential Revision: https://reviews.llvm.org/D113450
2021-11-10 18:35:57 +13:00
Salman Javed
ade0662c51 [clang-tidy] Fix lint warnings in clang-tidy source code (NFC)
Run clang-tidy on all source files under `clang-tools-extra/clang-tidy`
with `-header-filter=clang-tidy.*` and make suggested corrections.

Differential Revision: https://reviews.llvm.org/D112864
2021-11-02 20:14:25 +13:00
Nathan James
e1c729c568
[clang-tidy][NFC] Update tests and Default options to use boolean value
Change instances where options which are boolean are assigned the value 1|0 to use true|false instead.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D101721
2021-05-04 18:17:56 +01:00
Nathan James
1a721b6a26
[clang-tidy][NFC] Tweak some generation of diag messages
Fix up cases where diag is called by piecing together a string in favour of placeholders.
Fix up cases where select could be used instead of duplicating the message for sake of 1 word difference.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D97488
2021-02-26 19:10:25 +00:00
Stephen Kelly
c0199b2a21 [clang-tidy] Use new mapping matchers
Use mapAnyOf() and matchers based on it.

Use of binaryOperation() means that modernize-loop-convert and
readability-container-size-empty can now be used with rewritten binary
operators.

Differential Revision: https://reviews.llvm.org/D94131
2021-02-03 23:21:17 +00:00
Alexander Kornienko
027899dab6 Remove references to the ast_type_traits namespace
Follow up to cd62511496938e33c061c90796dd23a5288ff843 /
https://reviews.llvm.org/D74499

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D92994
2020-12-11 00:58:46 +01:00
Kadir Cetinkaya
5a9f386704
[clang-tidy] Make clang-format and include-order-check coherent
LLVM style puts both gtest and gmock to the end of the include list.
But llvm-include-order-check was only moving gtest headers to the end, resulting
in a false tidy-warning.

Differential Revision: https://reviews.llvm.org/D91602
2020-11-17 14:54:10 +01:00
Nathan James
41bbb875e4
[NFC] Use hasAnyName matcher in place of anyOf(hasName()...) 2020-07-07 14:31:04 +01:00
Nathan James
0196600367 [clang-tidy] Fix incorrect default option in fc3c693b61 2020-07-06 14:44:03 +01:00
Nathan James
fc3c693b61
[clang-tidy] Added alias llvm-else-after-return.
Added an alias llvm-else-after-return from readability-else-after-return to help enforce one of the llvm coding guidelines.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D82825
2020-07-06 14:39:03 +01:00
Eric Schweitz
e158154087 [clang-tidy] Allows the prevailing include header guard in Flang to be recognized rather than flagged as a violation in phabricator.
Differential revision: https://reviews.llvm.org/D82807
2020-07-01 12:47:36 -07:00
Nathan James
860aefd078
[clang-tidy][NFC] Remove unnecessary includes throughout clang-tidy header files
Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D82661
2020-06-29 16:05:52 +01:00
Valentin Clement
ddf7ae852c [openmp] Add missing dependencies for OMP.h.inc after d90443b 2020-06-23 11:48:04 -04:00
Nathan James
9a8b041144
[clang-tidy] llvm-twine-local ignores parameters
Ignore paramater declarations of type `::llvm::Twine`, These don't suffer the same use after free risks as local twines.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D82281
2020-06-22 18:25:45 +01:00
Michał Górny
d4f298c820 [clang-tools-extra] Prevent linking to duplicate .a libs and dylib
Fix various tool libraries not to link to clang's .a libraries and dylib
simultaneously.  This may cause breakage, in particular through
duplicate command-line option declarations.

Differential Revision: https://reviews.llvm.org/D81967
2020-06-17 19:00:26 +02:00
Stephen Kelly
a72307c3a6 Set traversal explicitly where needed in clang-tidy
Reviewers: aaron.ballman

Subscribers: nemanjai, kbarton, arphaman, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72530
2020-05-21 22:34:37 +01:00
Johannes Doerfert
f9d558c871 [OpenMP] "UnFix" layering problem with FrontendOpenMP
This reverts commit 97aa593a8387586095b7eac12974ba2fdd08f4c3 as it
causes problems (PR45453) https://reviews.llvm.org/D77574#1966321.

This additionally adds an explicit reference to FrontendOpenMP to
clang-tidy where ASTMatchers is used.

This is hopefully just a temporary solution. The dependence on
`FrontendOpenMP` from `ASTMatchers` should be handled by CMake
implicitly, not us explicitly.

Reviewed By: aheejin

Differential Revision: https://reviews.llvm.org/D77666
2020-04-07 14:41:18 -05:00
Jonathan Roelofs
47caa69120 [clang-tidy] Use ; as separator for HeaderFileExtensions
... and deprecate use of ',' for the same.

https://reviews.llvm.org/D75621
2020-03-09 11:32:44 -06:00
Nathan James
e40a742a50 [clang-tidy] Change checks to use new isLanguageVersionSupported restriction
Summary: Modifies all checks that are language version dependent to use `isLanguageVersionSupported`

Reviewers: jdoerfert, lebedev.ri, aaron.ballman, gribozavr2, Eugene.Zelenko

Reviewed By: gribozavr2

Subscribers: wuzish, nemanjai, xazax.hun, hiraditya, kbarton, steven_wu, dexonsmith, arphaman, lebedev.ri, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75340
2020-03-03 16:43:45 +00:00
Nathan James
8a68c40a1b [clang-tidy] Added option for disabling const qualifiers in readability-qualified-auto
Summary: Adds an option called `AddConstToQualified` to readability-qualified-auto to toggle adding const to the auto typed pointers and references. By default its enabled but in the LLVM module its disabled.

Reviewers: aaron.ballman, alexfh, JonasToth, hokein, sammccall

Reviewed By: aaron.ballman

Subscribers: Quuxplusone, merge_guards_bot, lebedev.ri, xazax.hun, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D73548
2020-02-02 21:27:25 +00:00
Benjamin Kramer
adcd026838 Make llvm::StringRef to std::string conversions explicit.
This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.

This is mostly mechanical from a custom clang-tidy check, with a lot of
manual fixups. It uncovers a lot of minor inefficiencies.

This doesn't actually modify StringRef yet, I'll do that in a follow-up.
2020-01-28 23:25:25 +01:00
Nathan James
36fcbb838c Added readability-qualified-auto check
Adds a check that detects any auto variables that are deduced to a pointer or
a const pointer then adds in the const and asterisk according. Will also
check auto L value references that could be written as const. This relates
to the coding standard
https://llvm.org/docs/CodingStandards.html#beware-unnecessary-copies-with-auto
2020-01-14 14:06:46 -05:00