The readability-else-after-return check should be smarter about cases where the
variable defined in the condition is used in the `else` branch. This patch makes
it just ignore such cases, but alternative solutions may be better (added a
FIXME).
llvm-svn: 351751
to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
a stray single '\r' from one file. These are the last line ending issues
I can find in the files containing parts of LLVM's file headers.
llvm-svn: 351634
And also enable it by default to be consistent with e.g.
modernize-use-using.
This helps e.g. when running this check on client code where the macro
is provided by the system, so there is no easy way to modify it.
Reviewed By: JonasToth, lebedev.ri
Differential Revision: https://reviews.llvm.org/D56025
llvm-svn: 350056
Summary: There is no ambiguity / information loss in this conversion
Reviewers: alexfh, aaron.ballman, hokein
Reviewed By: alexfh
Subscribers: xazax.hun, cfe-commits
Differential Revision: https://reviews.llvm.org/D54941
llvm-svn: 347671
When a warning is issued in a template instantiation, the check would previously
use template arguments in a note, which would result in inconsistent or
duplicate warnings (depending on how deduplication was done). This patch removes
template arguments from the note.
llvm-svn: 347652
Removed the uses of the allOf() matcher inside node matchers that are implicit
allOf(). Replaced uses of allOf() with the explicit node matcher where it makes
matchers more readable. Replace anyOf(hasName(), hasName(), ...) with the more
efficient and readable hasAnyName().
llvm-svn: 347520
This check flags function top-level const-qualified return types and suggests removing the mostly-superfluous const qualifier where possible.
Patch by Yitzhak Mandelbaum.
llvm-svn: 345764
Summary:
This patch introduces a new clang-tidy check that matches on all `declStmt` that declare more then one variable
and transform them into one statement per declaration if possible.
It currently only focusses on variable declarations but should be extended to cover more kinds of declarations in the future.
It is related to https://reviews.llvm.org/D27621 and does use it's extensive test-suite. Thank you to firolino for his work!
Reviewers: rsmith, aaron.ballman, alexfh, hokein, kbobyrev
Reviewed By: aaron.ballman
Subscribers: ZaMaZaN4iK, mgehre, nemanjai, kbarton, lebedev.ri, Eugene.Zelenko, mgorny, xazax.hun, cfe-commits
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D51949
llvm-svn: 345735
Summary:
Detects when the integral literal or floating point (decimal or hexadecimal)
literal has non-uppercase suffix, and suggests to make the suffix uppercase,
with fix-it.
All valid combinations of suffixes are supported.
```
auto x = 1; // OK, no suffix.
auto x = 1u; // warning: integer literal suffix 'u' is not upper-case
auto x = 1U; // OK, suffix is uppercase.
...
```
This is a re-commit, the original was reverted by me in
rL345305 due to discovered bugs. (implicit code, template instantiation)
Tests were added, and the bugs were fixed.
I'm unable to find any further bugs, hopefully there aren't any..
References:
* [[ https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?pageId=87152241 | CERT DCL16-C ]]
* MISRA C:2012, 7.3 - The lowercase character "l" shall not be used in a literal suffix
* MISRA C++:2008, 2-13-4 - Literal suffixes shall be upper case
Reviewers: JonasToth, aaron.ballman, alexfh, hokein, xazax.hun
Reviewed By: aaron.ballman
Subscribers: Eugene.Zelenko, mgorny, rnkovacs, cfe-commits
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D52670
llvm-svn: 345381
There are some lurking issues with the handling of the SourceManager.
Somehow sometimes we end up extracting completely wrong
portions of the source buffer.
Reverts r344772, r44760, r344758, r344755.
llvm-svn: 345305
And also enable it by default to be consistent with e.g. modernize-use-using.
This helps e.g. when running this check on client code where the macro is
provided by the system, so there is no easy way to modify it.
Reviewed By: JonasToth
Differential Revision: https://reviews.llvm.org/D53454
llvm-svn: 344871
Summary:
Detects when the integral literal or floating point (decimal or hexadecimal)
literal has non-uppercase suffix, and suggests to make the suffix uppercase,
with fix-it.
All valid combinations of suffixes are supported.
```
auto x = 1; // OK, no suffix.
auto x = 1u; // warning: integer literal suffix 'u' is not upper-case
auto x = 1U; // OK, suffix is uppercase.
...
```
References:
* [[ https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?pageId=87152241 | CERT DCL16-C ]]
* MISRA C:2012, 7.3 - The lowercase character "l" shall not be used in a literal suffix
* MISRA C++:2008, 2-13-4 - Literal suffixes shall be upper case
Reviewers: JonasToth, aaron.ballman, alexfh, hokein, xazax.hun
Reviewed By: aaron.ballman
Subscribers: Eugene.Zelenko, mgorny, rnkovacs, cfe-commits
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D52670
llvm-svn: 344755
Summary:
Option to check for different naming conventions on the following types:
- GlobalConstantPointer
- GlobalPointer
- LocalConstantPointer
- LocalPointer
- PointerParameter
- ConstantPointerParameter
When not specified, the conventions for the non pointer types will be applied (GlobalConstant, GlobalVariable, LocalConstant, ...).
Patch by ffigueras!
Reviewers: alexfh, kbobyrev
Reviewed By: alexfh
Subscribers: xazax.hun, cfe-commits
Differential Revision: https://reviews.llvm.org/D52882
llvm-svn: 343788
findStyleKind is only called if D is an explicit identifier with a name,
so the checks for operators will never return true. The explicit assert()
enforces this invariant.
Differential Revision: https://reviews.llvm.org/D52179
llvm-svn: 342514
Summary:
The goal is to reduce false positives when the difference is intentional, like:
foo(StringRef name);
foo(StringRef name_ref) {
string name = cleanup(name_ref);
...
}
Or semantically unimportant, like:
foo(StringRef full_name);
foo(StringRef name) { ... }
There are other matching names we won't recognise (e.g. syns vs synonyms) but
this catches many that we see in practice, and gives people a systematic
workaround.
The old behavior is available as a 'Strict' option.
Subscribers: xazax.hun, cfe-commits
Differential Revision: https://reviews.llvm.org/D49285
llvm-svn: 336992
bool foo(A &S) {
if (S != (A)S)
return false;
return true;
}
is fixed into (w/o this patch)
...
return !S != (A)S; // negotiation affects first operand only
}
instead of (with this patch)
...
return S == (A)S; // note == instead of !=
}
Differential Revision: https://reviews.llvm.org/D47122
llvm-svn: 333003
Currently, diagnoses code that calls container.data()[some_index] when the container exposes a suitable operator[]() method that can be used directly.
Patch by Shuai Wang.
llvm-svn: 332519
The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM
Differential Revision: https://reviews.llvm.org/D44976
llvm-svn: 332371
Summary: using ivar in class extension is not supported in 32-bit architecture of MacOS.
Reviewers: alexfh, hokein
Reviewed By: alexfh
Subscribers: klimek, cfe-commits
Differential Revision: https://reviews.llvm.org/D45912
llvm-svn: 330559
This commit has been breaking most bots for a day now. There is a fix
proposed in https://reviews.llvm.org/D45912 but when I applied that
I just got different errors. Reverting to get our bots back to green.
llvm-svn: 330528
Summary:
Pretty straight-forward, just count all the variable declarations in the function's body, and if more than the configured threshold - do complain.
Note that this continues perverse practice of disabling the new option by default.
I'm not certain where is the balance point between not being too noisy, and actually enforcing the good practice.
If we really want to not disable this by default, but also to not cause too many new warnings, we could default to 50 or so.
But that is a lot of variables too...
I was able to find one coding style referencing variable count:
- https://www.kernel.org/doc/html/v4.15/process/coding-style.html#functions
> Another measure of the function is the number of local variables. They shouldn’t exceed 5-10, or you’re doing something wrong.
Reviewers: hokein, xazax.hun, JonasToth, aaron.ballman, alexfh
Reviewed By: aaron.ballman
Subscribers: kimgr, Eugene.Zelenko, rnkovacs, cfe-commits
Tags: #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D44602
llvm-svn: 329902
Summary:
Many architectures provide SIMD operations (e.g. x86 SSE/AVX, Power AltiVec/VSX,
ARM NEON). It is common that SIMD code implementing the same algorithm, is
written in multiple target-dispatching pieces to optimize for different
architectures or micro-architectures.
The C++ standard proposal P0214 and its extensions cover many common SIMD
operations. By migrating from target-dependent intrinsics to P0214 operations,
the SIMD code can be simplified and pieces for different targets can be unified.
Refer to http://wg21.link/p0214 for introduction and motivation for the
data-parallel standard library.
Subscribers: klimek, aemerson, mgorny, xazax.hun, kristof.beyls, hintonda, cfe-commits
Differential Revision: https://reviews.llvm.org/D42983
llvm-svn: 325272
Summary:
Fixes bug 34701
When we encounter a namespace find the location of the left bracket.
Then if the text between the name and the left bracket contains a ':'
then it's a C++17 nested namespace.
Reviewers: #clang-tools-extra, alexfh, aaron.ballman
Reviewed By: aaron.ballman
Subscribers: curdeius, cfe-commits, krasimir, JonasToth, JDevlieghere, xazax.hun
Tags: #clang-tools-extra
Patch by Alexandru Octavian Buțiu!
Differential Revision: https://reviews.llvm.org/D38284
llvm-svn: 322274
And also enable it by default to be consistent with e.g. modernize-use-using.
This helps e.g. when running this check on client code where the macro is
provided by the system, so there is no easy way to modify it.
Reviewers: alexfh, piotrdz, hokein, ilya-biryukov
Reviewed By: alexfh
Differential Revision: https://reviews.llvm.org/D41716
llvm-svn: 321913
Summary:
They are not locally const qualified so they weren't classified as
constants by the readability-identifier-naming check.
Reviewers: alexfh
Reviewed By: alexfh
Subscribers: klimek, cfe-commits, xazax.hun
Patch by Beren Minor!
Differential Revision: https://reviews.llvm.org/D39363
llvm-svn: 320406
Summary:
The readability-else-after-return check was not warning about
an else after a throw of an exception that had arguments that needed
to be cleaned up.
Reviewers: aaron.ballman, alexfh, djasper
Reviewed By: aaron.ballman
Subscribers: lebedev.ri, klimek, xazax.hun, cfe-commits
Differential Revision: https://reviews.llvm.org/D40505
llvm-svn: 319174
Yitzhak Mandelbaum