Commit Graph

1941 Commits

Author SHA1 Message Date
Petr Hosek 7b627bb6e0 Revert "[clang-doc] Improving Markdown Output"
This reverts commit dac21fdd59 as this
is failing on Windows.
2020-02-07 19:43:47 -08:00
Petr Hosek dac21fdd59 [clang-doc] Improving Markdown Output
This change has two components. The moves the generated file
for a namespace to the directory named after the namespace in
a file named 'index.<format>'. This greatly improves the browsing
experience since the index page is shown by default for a directory.

The second improves the markdown output by adding the links to the
referenced pages for children objects and the link back to the source
code.

Patch By: Clayton

Differential Revision: https://reviews.llvm.org/D72954
2020-02-07 19:17:03 -08:00
Haojian Wu 7d4c23b349 [clang-tidy] Fix a false positive about C++17 deduced class template types in unused-using-decl check.
Reviewers: gribozavr2

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73876
2020-02-03 16:25:10 +01:00
Karasev Nikita 6423ae417e Allow modernize-use-using to apply to enumerations as well.
This addresses PR44528.
2020-02-03 07:54:38 -05:00
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
Nathan James efcd09cea9 [clang-tidy] Fix false positive for cppcoreguidelines-init-variables
Summary: Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=44746 | False positive for cppcoreguidelines-init-variables in range based for loop in template function ]]

Reviewers: aaron.ballman, alexfh, hokein, JonasToth, gribozavr2

Reviewed By: aaron.ballman

Subscribers: merge_guards_bot, xazax.hun, wuzish, nemanjai, kbarton, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D73843
2020-02-02 21:26:29 +00:00
Nathan James d591bdce6d [clang-tidy] Fixed crash 44745 in readability-else-after-return
Summary: Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=44745 | readability-else-after-return crashes ]]

Reviewers: aaron.ballman, alexfh, hokein, JonasToth, gribozavr2

Reviewed By: alexfh

Subscribers: merge_guards_bot, xazax.hun, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D73841
2020-02-02 14:04:46 +00:00
Nathan 6874dfce3a [clang-tidy] Fix bugprone-use-after-move when move is in noexcept operator
Summary: Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=44667 | noexcept operator misinterpreted as being evaluated ]].

Reviewers: aaron.ballman, alexfh, JonasToth, hokein, gribozavr2

Reviewed By: gribozavr2

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

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D73441
2020-01-28 00:39:07 +00:00
Nathan 7c90666d2c [clang-tidy] readability-redundant-string-init now flags redundant initialisation in Field Decls and Constructor Initialisers
Summary:
The original behaviour of this check only looked at VarDecls with strings that had an empty string initializer. This has been improved to check for FieldDecls with an in class initializer as well as constructor initializers.

Addresses [[ https://bugs.llvm.org/show_bug.cgi?id=44474 | clang-tidy "modernize-use-default-member-init"/"readability-redundant-string-init" and redundant initializer of std::string ]]

Reviewers: aaron.ballman, alexfh, hokein

Reviewed By: aaron.ballman

Subscribers: merge_guards_bot, mgorny, Eugene.Zelenko, xazax.hun, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D72448
2020-01-27 23:51:45 +00:00
Nathan c3d20fd472 [clang-tidy] readability-identifier-naming disregards parameters restrictions on main like functions
Summary:
Typically most main functions have the signature:
```
int main(int argc, char *argv[])
```
To stick with convention when renaming parameters we should ignore the `argc` and `argv` names even if the parameter style says they should be renamed. This patch addresses this by checking all ParmVarDecls if they form part of a function with a signature that matches main `int name(int argc, char * argv[], (optional char *env[]))`

Reviewers: aaron.ballman, JonasToth, alexfh, hokein

Reviewed By: aaron.ballman

Subscribers: Mordante, merge_guards_bot, xazax.hun, kristof.beyls, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D73098
2020-01-27 23:47:51 +00:00
Shoaib Meenai c72a6ac4b6 Revert "[clang-tidy] readability-identifier-naming disregards parameters restrictions on main like functions"
This reverts commit 27e3671ff4.

This was an accidental push, and the author requested a revert on IRC as
their local branch is in a bad state.
2020-01-27 11:50:25 -08:00
Nathan 27e3671ff4 [clang-tidy] readability-identifier-naming disregards parameters restrictions on main like functions
Summary:
Typically most main functions have the signature:
```
int main(int argc, char *argv[])
```
To stick with convention when renaming parameters we should ignore the `argc` and `argv` names even if the parameter style says they should be renamed. This patch addresses this by checking all ParmVarDecls if they form part of a function with a signature that matches main `int name(int argc, char * argv[], (optional char *env[]))`

Reviewers: aaron.ballman, JonasToth, alexfh, hokein

Reviewed By: aaron.ballman

Subscribers: Mordante, merge_guards_bot, xazax.hun, kristof.beyls, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D73098
2020-01-27 19:23:21 +00:00
Adam Balogh 70f4c6e7b1 [clan-tidy] Fix false positive in bugprone-infinite-loop
The checker bugprone-infinite-loop does not track changes of
variables in the initialization expression of a variable
declared inside the condition of the while statement. This
leads to false positives, similarly to the one in the bug
report https://bugs.llvm.org/show_bug.cgi?id=44618. This
patch fixes this issue by enabling tracking of the variables
of this expression as well.

Differential Revision: https://reviews.llvm.org/D73270
2020-01-27 10:13:55 +01:00
Alexander Lanin 84c5f19637 Extend misc-misplaced-const to detect using declarations as well as typedef 2020-01-22 15:26:11 -05:00
Aaron Ballman e3b15ed376 Revert "Extend misc-misplaced-const to detect using declarations as well as typedef"
This reverts commit ecc7dae50c due to breaking bots:

http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/22157
http://lab.llvm.org:8011/builders/clang-ppc64be-linux/builds/43297
2020-01-22 09:06:24 -05:00
Alexander Lanin ecc7dae50c Extend misc-misplaced-const to detect using declarations as well as typedef 2020-01-22 08:45:20 -05:00
Eric Fiselier 020ed6713d [clang-tidy] Fix check for Abseil internal namespace access
This change makes following modifications:
  * If reference originated from macro expansion, we report location inside of
    the macro instead of location where macro is referenced.
  * If for any reason deduced location is not correct we silently ignore it.

Patch by Gennadiy Rozental (rogeeff@google.com)
Reviewed as https://reviews.llvm.org/D72484
2020-01-21 15:21:53 -05:00
Adam Balogh fccd0da5ee [clang-tidy] New check: bugprone-misplaced-pointer-arithmetic-in-alloc
Finds cases where an integer expression is added to the result
of a memory allocation function instead of its argument.

Differential Revision: https://reviews.llvm.org/D71001
2020-01-21 14:38:15 +01:00
Nathan a42c3eb599 [clang-tidy] Add check for CERT-OOP57-CPP
Summary:
This is a very basic warning implementation of [[ https://wiki.sei.cmu.edu/confluence/display/cplusplus/OOP57-CPP.+Prefer+special+member+functions+and+overloaded+operators+to+C+Standard+Library+functions | Prefer special member functions and overloaded operators to C Standard Library functions ]]

It absolutely needs some fine tuning though.

Reviewers: alexfh, hokein, aaron.ballman, JonasToth

Reviewed By: aaron.ballman

Subscribers: merge_guards_bot, Eugene.Zelenko, mgorny, xazax.hun, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D72488
2020-01-20 17:09:03 +00:00
Nathan f9c46229e4 [clang-tidy] Disable Checks on If constexpr statements in template Instantiations for BugproneBranchClone and ReadabilityBracesAroundStatements
Summary: fixes [[ https://bugs.llvm.org/show_bug.cgi?id=32203 | readability-braces-around-statements broken for if constexpr]] and [[ https://bugs.llvm.org/show_bug.cgi?id=44229 | bugprone-branch-clone false positive with template functions and constexpr ]] by disabling the relevant checks on if constexpr statements while inside an instantiated template. This is due to how the else branch of an if constexpr statement is folded away to a null statement if the condition evaluates to false

Reviewers: alexfh, hokein, aaron.ballman, xazax.hun

Reviewed By: aaron.ballman, xazax.hun

Subscribers: rnkovacs, JonasToth, Jim, lebedev.ri, xazax.hun, cfe-commits

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D71980
2020-01-17 14:21:38 +00:00
Logan Smith 42a0355816 Add `bugprone-reserved-identifier`
This patch adds bugprone-reserved-identifier, which flags uses of __names _Like
::_this, which are reserved for the implementation. The check can optionally be
inverted, i.e. configured to flag any names that are _not_ reserved, which may
be useful for e.g. standard library implementors.
2020-01-17 08:44:21 -05:00
Yuanfang Chen 6e24c6037f Revert "[Support] make report_fatal_error `abort` instead of `exit`"
This reverts commit 647c3f4e47.

Got bots failure from sanitizer-windows and maybe others.
2020-01-15 17:52:25 -08:00
Yuanfang Chen 647c3f4e47 [Support] make report_fatal_error `abort` instead of `exit`
Summary:
This patch could be treated as a rebase of D33960. It also fixes PR35547.
A fix for `llvm/test/Other/close-stderr.ll` is proposed in D68164. Seems
the consensus is that the test is passing by chance and I'm not
sure how important it is for us. So it is removed like in D33960 for now.
The rest of the test fixes are just adding `--crash` flag to `not` tool.

** The reason it fixes PR35547 is

`exit` does cleanup including calling class destructor whereas `abort`
does not do any cleanup. In multithreading environment such as ThinLTO or JIT,
threads may share states which mostly are ManagedStatic<>. If faulting thread
tearing down a class when another thread is using it, there are chances of
memory corruption. This is bad 1. It will stop error reporting like pretty
stack printer; 2. The memory corruption is distracting and nondeterministic in
terms of error message, and corruption type (depending one the timing, it
could be double free, heap free after use, etc.).

Reviewers: rnk, chandlerc, zturner, sepavloff, MaskRay, espindola

Reviewed By: rnk, MaskRay

Subscribers: wuzish, jholewinski, qcolombet, dschuff, jyknight, emaste, sdardis, nemanjai, jvesely, nhaehnle, sbc100, arichardson, jgravelle-google, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, lenary, s.egerton, pzheng, cfe-commits, MaskRay, filcab, davide, MatzeB, mehdi_amini, hiraditya, steven_wu, dexonsmith, rupprecht, seiya, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D67847
2020-01-15 17:05:13 -08:00
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
Malcolm Parsons 9738c757bd [clang-tidy] Match InitListExpr in modernize-use-default-member-init
Summary:
modernize-use-default-member-init wasn't warning about redundant initialisers
when the initialiser was an InitListExpr.  Add initListExpr to the matcher.

Fixes: PR44439

Reviewers: aaron.ballman, alexfh, JonasToth

Reviewed By: aaron.ballman

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72691
2020-01-14 15:19:37 +00:00
Malcolm Parsons 45924eb467 [clang-tidy] Ignore implicit casts in modernize-use-default-member-init
Summary:
Initialising a pointer from nullptr involves an implicit cast.
Ignore it after getting initialiser from InitListExpr.

Fixes: PR44440

Reviewers: aaron.ballman, alexfh, JonasToth

Reviewed By: JonasToth

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72630
2020-01-14 10:05:12 +00:00
Aaron Ballman c1b13a1b17 Fix a test case by adding -fno-delayed-template-parsing. 2020-01-13 16:02:31 -05:00
Nathan James fb79ef5241 Fix readability-identifier-naming missing member variables
Fixes PR41122 (missing fixes for member variables in a destructor) and
PR29005 (does not rename class members in all locations).
2020-01-13 13:28:55 -05:00
Andi-Bogdan Postelnicu 795c38eb4d [clang-tidy] For checker `readability-misleading-indentation` update tests.
Summary: In D72333 we've introduced support for `if constexpr` but the test for uninstantiated template was not ready to land on windows platform since this target uses `-fdelayed-template-parsing` by default. This patch addresses this by passing `-fno-delayed-template-parsing` to the test.

Reviewers: JonasToth

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72438
2020-01-09 13:52:26 +02:00
Andi-Bogdan Postelnicu 0a01ec972d [clang-tidy] Remove broken test on Windows for `readability-misleading-indentation`.
Because Windows build uses by default `fdelayed-template-parsing` we cannot have a test
where we don't instantiate the template. Please see D72333.
2020-01-08 20:37:23 +02:00
Andi-Bogdan Postelnicu ba129c7d0f [clang-tidy] Disable match on `if constexpr` statements in template instantiation for `readability-misleading-indentation` check.
Summary: Fixes fixes `readability-misleading-identation` for `if constexpr`. This is very similar to D71980.

Reviewers: alexfh

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72333
2020-01-08 16:36:13 +02:00
Mitchell Balan 73d93617d3 [clang-tidy] modernize-use-using uses AST and now supports struct defintions and multiple types in a typedef
Summary:
It now handles `typedef`s that include comma-separated multiple types, and handles embedded struct definitions, which previously could not be automatically converted.

For example, with this patch `modernize-use-using` now can convert:

typedef struct { int a; } R_t, *R_p;

to:

using R_t = struct { int a; };
using R_p = R_t*;

`-ast-dump` showed that the `CXXRecordDecl` definitions and multiple `TypedefDecl`s come consecutively in the tree, so `check()` stores information between calls to determine when it is receiving a second or additional `TypedefDecl` within a single `typedef`, or when the current `TypedefDecl` refers to an embedded `CXXRecordDecl` like a `struct`.

Reviewers: alexfh, aaron.ballman

Patch by: poelmanc

Subscribers: riccibruno, sammccall, cfe-commits, aaron.ballman

Tags: clang-tools-extra, clang

Differential Revision: https://reviews.llvm.org/D70270
2020-01-07 16:36:11 -05:00
Tamás Zolnai 350da402ef [clang-tidy] new check: bugprone-signed-char-misuse
Summary:
This check searches for signed char -> integer conversions which might
indicate programming error, because of the misinterpretation of char
values. A signed char might store the non-ASCII characters as negative
values. The human programmer probably expects that after an integer
conversion the converted value matches with the character code
(a value from [0..255]), however, the actual value is in
[-128..127] interval.

See also:
STR34-C. Cast characters to unsigned char before converting to larger integer sizes
<https://wiki.sei.cmu.edu/confluence/display/c/STR34-C.+Cast+characters+to+unsigned+char+before+converting+to+larger+integer+sizes>

By now this check is limited to assignment / variable declarations.
If we would catch all signed char -> integer conversion, then it would
produce a lot of findings and also false positives. So I added only
this use case now, but this check can be extended with additional
use cases later.
The CERT documentation mentions another use case when the char is
used for array subscript. Next to that a third use case can be
the signed char - unsigned char comparison, which also a use case
where things happen unexpectedly because of conversion to integer.

Reviewers: alexfh, hokein, aaron.ballman

Reviewed By: aaron.ballman

Subscribers: sylvestre.ledru, whisperity, Eugene.Zelenko, mgorny, xazax.hun, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D71174
2020-01-06 18:21:26 +01:00
Kazuaki Ishizaki b7ecf1c1c3 NFC: Fix trivial typos in comments 2020-01-04 10:28:41 -05:00
Nathan James ec3d8e61b5 Handle init statements in readability-else-after-return
Adds a new ASTMatcher condition called 'hasInitStatement()' that matches if,
switch and range-for statements with an initializer. Reworked clang-tidy
readability-else-after-return to handle variables in the if condition or init
statements in c++17 ifs. Also checks if removing the else would affect object
lifetimes in the else branch.

Fixes PR44364.
2020-01-02 13:39:27 -05:00
Ilya Mirsky f58f39137c Fix readability-const-return-type identifying the wrong `const` token
Replace tidy::utils::lexer::getConstQualifyingToken with a corrected and also
generalized to other qualifiers variant - getQualifyingToken.

Fixes PR44326
2019-12-24 10:10:01 -05:00
Florin Iucha c16b3ec597 Fix false positive in magic number checker.
cppcoreguidelines-avoid-magic-numbers should not warn about enum class.
Fixes PR40640.
2019-12-24 10:03:00 -05:00
Gabor Bencze bbc9f6c2ef [clang-tidy] Add cert-oop58-cpp check
The check warns when (a member of) the copied object is assigned to in a
copy constructor or copy assignment operator. Based on
https://wiki.sei.cmu.edu/confluence/display/cplusplus/OOP58-CPP.+Copy+operations+must+not+mutate+the+source+object

Differential Revision: https://reviews.llvm.org/D70052
2019-12-15 16:30:14 +01:00
Eric Christopher 52b1c94a5f Turn off unused variable checking here since we're explicitly adding
a command line for clang-tidy.
2019-12-09 19:14:04 -08:00
Tibor Brunner be7d633a6f Magic number checker shouldn't warn on user defined string literals
Fixes a false positive brought up by PR40633.
2019-12-09 13:13:26 -05:00
Florin Iucha 6dcb1003f2 Optionally exclude bitfield definitions from magic numbers check
Adds the IgnoreBitFieldsWidths option to readability-magic-numbers.
2019-12-07 12:33:10 -05:00
Akira Hatanaka a7bdab2e9d [clang-tidy] Pass -faligned-allocation on the compiler command line to
fix compile error

The test was failing when run on OSes older than MacOSX10.14 because
aligned deallocation functions are unavailable on older OSes.

rdar://problem/57706710
2019-12-06 12:29:21 -08:00
Alexander Kornienko fac4e3c5f8 [clang-tidy] Fix PR26274
Summary:
This commit fixes http://llvm.org/PR26274 in a simpler and more correct way than
4736d63f75 did. See
https://reviews.llvm.org/D69855#1767089 for details.

Reviewers: gribozavr, aaron.ballman, gribozavr2

Reviewed By: aaron.ballman, gribozavr2

Subscribers: gribozavr2, merge_guards_bot, xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70974
2019-12-06 10:10:15 +01:00
Kadir Cetinkaya 82f6ae5433
[clang-change-namespace] Change file pattern to be an anchored regex 2019-12-04 15:48:44 +01:00
Elizabeth Andrews 878a24ee24 Reapply "Fix crash on switch conditions of non-integer types in templates"
This patch reapplies commit 759948467e. Patch was reverted due to a
clang-tidy test fail on Windows. The test has been modified. There
are no additional code changes.

Patch was tested with ninja check-all on Windows and Linux.

Summary of code changes:

Clang currently crashes for switch statements inside a template when the
condition is a non-integer field member because contextual implicit
conversion is skipped when parsing the condition. This conversion is
however later checked in an assert when the case statement is handled.
The conversion is skipped when parsing the condition because
the field member is set as type-dependent based on its containing class.
This patch sets the type dependency based on the field's type instead.

This patch fixes Bug 40982.
2019-12-03 15:27:19 -08:00
Alexander Kornienko c375dc230d Revert "Fix llvm-namespace-comment for macro expansions"
This reverts commit 4736d63f75.
This commit introduces a ton of false positives and incorrect fixes. See https://reviews.llvm.org/D69855#1767089 for details.
2019-12-03 20:30:41 +01:00
Zachary Turner 64f74bf72e [clang-tidy] Rewrite modernize-avoid-bind check.
This represents largely a full re-write of modernize-avoid-bind, adding
significant new functionality in the process. In particular:

* Both boost::bind and std::bind are now supported
* Function objects are supported in addition to functions
* Member functions are supported
* Nested calls are supported using capture-init syntax
* std::ref() and boost::ref() are now recognized, and will capture by reference.
* Rather than capturing with a global =, we now build up an individual
  capture list that is both necessary and sufficient for the call.
* Fixits are supported in a much larger variety of scenarios than before.

All previous tests pass under the re-write, but a large number of new
tests have been added as well.

Differential Revision: https://reviews.llvm.org/D70368
2019-12-02 15:36:26 -08:00
Adam Balogh 497a754ade [Clang-Tidy] Quick fix for bug in bugprone-macro-parentheses 43804
Applying parentheses for statement leads to compilation error. Bug
[[ 43804 | https://bugs.llvm.org/show_bug.cgi?id=43804 ]] is a
compilation error suggested by a wrong fix of this checker. This
patch is a quick fix for this issue.

Differential Revision: https://reviews.llvm.org/D70850
2019-12-02 08:50:51 +01:00
Gabor Horvath 5c5e860535 [clang-tidy] Fix PR35824
Differential Revision: https://reviews.llvm.org/D46027
2019-11-27 11:07:16 -08:00
Marcin Twardak 4736d63f75 Fix llvm-namespace-comment for macro expansions
If a namespace is a macro name, it should be allowed to close the
namespace with the same name.
2019-11-23 13:08:14 -05:00