Commit Graph

1524 Commits

Author SHA1 Message Date
Alexander Kornienko 5f8ede4f0d Add support for arrays in performance-implicit-conversion-in-loop
Summary:
Add support for arrays (and structure that use naked pointers for their iterator, like std::array) in performance-implicit-conversion-in-loop

Reviewers: alexfh

Reviewed By: alexfh

Subscribers: cfe-commits

Patch by Alex Pilkiewicz.

Differential Revision: https://reviews.llvm.org/D47945

llvm-svn: 334400
2018-06-11 12:46:48 +00:00
Haojian Wu 07996a54ba [clang-tidy] Improve string type matcher for abseil-string-find-starts-with check.
Summary:
This patch improves the check to match the desugared "string" type (so that it
can handle custom-implemented string classes), see the newly-added test.

Reviewers: alexfh

Subscribers: klimek, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D47704

llvm-svn: 334270
2018-06-08 08:19:22 +00:00
Sam McCall 4caa85129f [clangd] Code completion: drop explicit injected names/operators, ignore Sema priority
Summary:
Now we have most of Sema's code completion signals incorporated in Quality,
which will allow us to give consistent ranking to sema/index results.

Therefore we can/should stop using Sema priority as an explicit signal.
This fixes some issues like namespaces always having a terrible score.

The most important missing signals are:
 - Really dumb/rarely useful completions like:
    SomeStruct().^SomeStruct
    SomeStruct().^operator=
    SomeStruct().~SomeStruct()
   We already filter out destructors, this patch adds injected names and
   operators to that list.
 - type matching the expression context.
   Ilya has a plan to add this in a way that's compatible with indexes
   (design doc should be shared real soon now!)

Reviewers: ioeric

Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D47871

llvm-svn: 334192
2018-06-07 12:49:17 +00:00
Julie Hockett e78f30183e [clang-doc] Implement a YAML generator
Implmenting a YAML generator from the emitted bitcode summary of
declarations. Emits one YAML file for each declaration information.

For a more detailed overview of the tool, see the design document on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-December/056203.html

llvm-svn: 334103
2018-06-06 16:13:17 +00:00
Roman Lebedev a87f1d04ce [clang-tidy] Store checks profiling info as JSON files
Summary:
Continuation of D46504.

Example output:
```
  $ clang-tidy -enable-check-profile -store-check-profile=. -checks=-*,readability-function-size source.cpp
  $ # Note that there won't be timings table printed to the console.
  $ cat *.json
  {
  "file": "/path/to/source.cpp",
  "timestamp": "2018-05-16 16:13:18.717446360",
  "profile": {
    "time.clang-tidy.readability-function-size.wall": 1.0421266555786133e+00,
    "time.clang-tidy.readability-function-size.user": 9.2088400000005421e-01,
    "time.clang-tidy.readability-function-size.sys": 1.2418899999999974e-01
  }
  }
```

There are two arguments that control profile storage:

* `-store-check-profile=<prefix>`

  By default reports are printed in tabulated format to stderr. When this option
  is passed, these per-TU profiles are instead stored as JSON.
  If the prefix is not an absolute path, it is considered to be relative to the
  directory from where you have run :program:`clang-tidy`. All `.` and `..`
  patterns in the path are collapsed, and symlinks are resolved.

  Example:
  Let's suppose you have a source file named `example.cpp`, located in
  `/source` directory.

  * If you specify `-store-check-profile=/tmp`, then the profile will be saved
    to `/tmp/<timestamp>-example.cpp.json`

  * If you run :program:`clang-tidy` from within `/foo` directory, and specify
    `-store-check-profile=.`, then the profile will still be saved to
    `/foo/<timestamp>-example.cpp.json`

Reviewers: alexfh, sbenza, george.karpenkov, NoQ, aaron.ballman

Reviewed By: alexfh, george.karpenkov, aaron.ballman

Subscribers: Quuxplusone, JonasToth, aaron.ballman, llvm-commits, rja, Eugene.Zelenko, xazax.hun, mgrang, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D46602

llvm-svn: 334101
2018-06-06 15:07:51 +00:00
Sam McCall 1cd9ee8e03 [clang-tidy] fix broken test (no compile command) from r331763
llvm-svn: 333994
2018-06-05 09:42:06 +00:00
Sam McCall 27a07cf84f [clangd] Rewrite JSON dispatcher loop using C IO (FILE*) instead of std::istream.
Summary:
The EINTR loop around getline was added to fix an issue with mac gdb, but seems
to loop infinitely in rare cases on linux where the parent editor exits (most
reports with VSCode).
I can't work out how to fix this in a portable way with std::istream, but the
C APIs have clearer contracts and LLVM has a RetryAfterSignal function for use
with them which seems battle-tested.

While here, clean up some inconsistency around \n in log messages (now
add it only after JSON payloads), and reduce the scope of the
long-message handling which was only really added to fight fuzzers.

Reviewers: malaperle, ilya-biryukov

Subscribers: klimek, ioeric, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D47643

llvm-svn: 333993
2018-06-05 09:34:46 +00:00
Julie Hockett d0f9a87215 [clang-doc] Implement reducer portion of the frontend framework
Implements a simple, in-memory reducer for the mapped output of the
initial tool. This creates a collection object for storing the
deduplicated infos on each declaration, and populates that from the
mapper output. The collection object is serialized to LLVM
bitstream. On reading each serialized output, it checks to see if a
merge is necessary and if so, merges the new info with the existing
info (prefering the existing one if conflicts exist).

For a more detailed overview of the tool, see the design document
on the mailing list:
http://lists.llvm.org/pipermail/cfe-dev/2017-December/056203.html

Differential Revision: https://reviews.llvm.org/D43341

llvm-svn: 333932
2018-06-04 17:22:20 +00:00
Sam McCall 682cfe704d [clangd] Hover should return null when not hovering over anything.
Summary: Also made JSON serialize Optional<T> to simplify this.

Reviewers: ioeric

Subscribers: klimek, ilya-biryukov, MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D47701

llvm-svn: 333881
2018-06-04 10:37:16 +00:00
Ilya Biryukov 823b056f58 [clangd] Keep only a limited number of idle ASTs in memory
Summary:
After this commit, clangd will only keep the last 3 accessed ASTs in
memory. Preambles for each of the opened files are still kept in
memory to make completion and AST rebuilds fast.

AST rebuilds are usually fast enough, but having the last ASTs in
memory still considerably improves latency of operations like
findDefinition and documeneHighlight, which are often sent multiple
times a second when moving around the code. So keeping some of the last
accessed ASTs in memory seems like a reasonable tradeoff.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: malaperle, arphaman, klimek, javed.absar, ioeric, MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D47063

llvm-svn: 333737
2018-06-01 10:08:43 +00:00
David Stenberg 3891885ca0 [Driver] Clean up tmp files when deleting Compilation objects
Summary:
In rL327851 the createUniqueFile() and createTemporaryFile()
variants that do not return the file descriptors were changed to
create empty files, rather than only check if the paths are free.
This change was done in order to make the functions race-free.

That change led to clang-tidy (and possibly other tools) leaving
behind temporary assembly files, of the form placeholder-*, when
using a target that does not support the internal assembler.

The temporary files are created when building the Compilation
object in stripPositionalArgs(), as a part of creating the
compilation database for the arguments after the double-dash. The
files are created by Driver::GetNamedOutputPath().

Fix this issue by cleaning out temporary files at the deletion of
Compilation objects.

This fixes https://bugs.llvm.org/show_bug.cgi?id=37091.

Reviewers: klimek, sepavloff, arphaman, aaron.ballman, john.brawn, mehdi_amini, sammccall, bkramer, alexfh, JDevlieghere

Reviewed By: aaron.ballman, JDevlieghere

Subscribers: erichkeane, lebedev.ri, Ka-Ka, cfe-commits

Differential Revision: https://reviews.llvm.org/D45686

llvm-svn: 333637
2018-05-31 09:05:22 +00:00
Clement Courbet 1c0a15c444 [clang-tidy] new cppcoreguidelines-narrowing-conversions check.
Summary:
Checks for narrowing conversions, e.g.

int i = 0;
i += 0.1;

This has what some might consider false positives for:
i += ceil(d);

Reviewers: alexfh, hokein

Subscribers: srhines, nemanjai, mgorny, JDevlieghere, xazax.hun, kbarton

Differential Revision: https://reviews.llvm.org/D38455

llvm-svn: 333066
2018-05-23 07:58:41 +00:00
Zinovy Nis 9bfe932c54 [clang-tidy] SimplifyBoolenExpr doesn't add parens if unary negotiation is of ExprWithCleanups type
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
2018-05-22 17:24:28 +00:00
Eric Liu 90d308ef4b Re-enable a clang-move test on windows.
This was fixed by r332612.

llvm-svn: 332701
2018-05-18 09:25:36 +00:00
Eric Liu a907bf6a31 Disable a failing clang-move test on windows.
This was broken by r332590 but is likely caused by a bug in clang-move.

http://lab.llvm.org:8011/builders/clang-x86-windows-msvc2015/builds/12007

I don't have a windows machine to effectively debug the issue, so I'll investigate
further but for now disable the failing test on windows to unbreak build bots.

llvm-svn: 332620
2018-05-17 16:13:36 +00:00
Alexander Kornienko 85a92c3f0b [clang-tidy] Add a flag to enable alpha checkers
Summary: The alpha checkers can already be enabled using the clang driver, this allows them to be enabled using the clang-tidy as well. This can make it easier to test the alpha checkers with projects which already support the compile_commands.json. It will also allow more people to give feedback and patches about the alpha checkers since they can run it as part of clang tidy checks.

Reviewers: aaron.ballman, hokein, ilya-biryukov, alexfh, lebedev.ri, xbolva00

Reviewed By: aaron.ballman, alexfh, lebedev.ri, xbolva00

Subscribers: xbolva00, NoQ, dcoughlin, lebedev.ri, xazax.hun, cfe-commits

Patch by Paul Fultz II!

Differential Revision: https://reviews.llvm.org/D46159

llvm-svn: 332609
2018-05-17 14:04:27 +00:00
Aaron Ballman cc740ae5bb Add a new check, readability-simplify-subscript-expr, that diagnoses array subscript expressions that can be simplified.
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
2018-05-16 20:12:06 +00:00
Ben Hamilton 35d3398f8d [clang-tidy/google-readability-casting] Disable check for Objective-C++
Summary:
Previously, `google-readability-casting` was disabled for Objective-C.

The Google Objective-C++ style allows both Objective-C and
C++ style in the same file. Since clang-tidy doesn't have a good
way to allow multiple styles per file, this disables the
check for Objective-C++.

Test Plan: New tests added. Ran tests with:
  % make -j16 check-clang-tools
  Before diff, confirmed tests failed:
  https://reviews.llvm.org/P8081
  After diff, confirrmed tests passed.

Reviewers: alexfh, Wizard, hokein, stephanemoore

Reviewed By: alexfh, Wizard, stephanemoore

Subscribers: stephanemoore, cfe-commits, bkramer, klimek

Differential Revision: https://reviews.llvm.org/D46659

llvm-svn: 332516
2018-05-16 20:07:19 +00:00
Eric Liu 2c1905386c [clangd] Remove LSP command-based #include insertion.
Summary:
clangd will populate #include insertions as addtionalEdits in completion items.

The code completion tests in ClangdServerTest will be added back in D46497.

Reviewers: ilya-biryukov, sammccall

Reviewed By: ilya-biryukov

Subscribers: klimek, MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D46676

llvm-svn: 332362
2018-05-15 15:23:53 +00:00
Gabor Horvath a49a91b555 [clang-tidy] Add terminating continue check
Patch by: Daniel Kolozsvari!

Differential Revision: https://reviews.llvm.org/D33844

llvm-svn: 332223
2018-05-14 10:10:02 +00:00
Julie Hockett 65631a7c13 [clang-tidy] Fixing fuchsia-restrict-includes-headers test
Removing filepaths so windows tests pass.

llvm-svn: 332152
2018-05-11 22:58:45 +00:00
Julie Hockett b13c6aebaf [clang-tidy] Cleaning up test output (fuchsia-restrict-system-includes)
This should fix the break in the fuchsia-restrict-system-includes-headers
test.

llvm-svn: 332143
2018-05-11 21:28:34 +00:00
Julie Hockett f108a8fee1 Reland "[clang-tidy] Adding RestrictSystemIncludes check to Fuchsia module"
This relands r332125 with a fixed test.

llvm-svn: 332141
2018-05-11 21:08:59 +00:00
Julie Hockett b262a0489b Revert "[clang-tidy] Adding RestrictSystemIncludes check to Fuchsia module"
This reverts commit r332125 for a failing test.

llvm-svn: 332131
2018-05-11 20:03:22 +00:00
Julie Hockett 02aba94e76 [clang-tidy] Adding RestrictSystemIncludes check to Fuchsia module
Adding a check to restrict system includes to a whitelist. Given a list
of includes that are explicitly allowed, the check issues a fixit to
remove any system include not on that list from the source file.

Differential Revision: https://reviews.llvm.org/D43778

llvm-svn: 332125
2018-05-11 19:23:15 +00:00
Julie Hockett b11f8b3cbc Revert "[clang-tidy] Adding RestrictSystemIncludes check to Fuchsia module"
This reverts commit r331930, which was landed by accident.

llvm-svn: 331934
2018-05-09 22:28:18 +00:00
Julie Hockett 06af01bbc2 [clang-tidy] Adding RestrictSystemIncludes check to Fuchsia module
Adding a check to restrict system includes to a whitelist. Given a list
of includes that are explicitly allowed, the check issues a fixit to
remove any system include not on that list from the source file.

Differential Revision: https://reviews.llvm.org/D43778

llvm-svn: 331930
2018-05-09 22:25:42 +00:00
Manuel Klimek d88caa21e6 Do not warn on unused parameters for functions with empty bodies.
If a function has an empty body, all parameters are trivially unused.

llvm-svn: 331875
2018-05-09 13:20:03 +00:00
Roman Lebedev 1215251151 [clang-tidy] Profile is a per-AST (per-TU) data.
Summary:
As discussed in D45931, currently, profiling output of clang-tidy is somewhat not great.
It outputs one profile at the end of the execution, and that profile contains the data
from the last TU that was processed. So if the tool run on multiple TU's, the data is
not accumulated, it is simply discarded.

It would be nice to improve this.

This differential is the first step - make this profiling info per-TU,
and output it after the tool has finished processing each TU.
In particular, when `ClangTidyASTConsumer` destructor runs.

Next step will be to add a CSV (JSON?) printer to store said profiles under user-specified directory prefix.

Reviewers: alexfh, sbenza

Reviewed By: alexfh

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

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D46504

llvm-svn: 331763
2018-05-08 13:14:21 +00:00
Yan Zhang 4f9ead2356 Add support for ObjC property name to be a single acronym.
Summary:
This change will support cases like:

```
@property(assign, nonatomic) int ID;
```

Reviewers: benhamilton, hokein

Reviewed By: benhamilton

Subscribers: klimek, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D46374

llvm-svn: 331545
2018-05-04 18:14:08 +00:00
Julie Hockett b59cd77c87 [clang-doc] Attaching a name to reference data
This adds the name of the referenced decl, in addition to its USR, to
the saved data, so that the backend can look at an info in isolation and
still be able to construct a human-readable name for it.

Differential Revision: https://reviews.llvm.org/D46281

llvm-svn: 331539
2018-05-04 17:02:13 +00:00
Zinovy Nis 8242ca3312 Simplify test clang-tidy-__clang_analyzer__macro.cpp
llvm-svn: 331475
2018-05-03 18:31:39 +00:00
Zinovy Nis beca76823b [clang-tidy] Define __clang_analyzer__ macro for clang-tidy for compatibility with clang static analyzer
This macro is widely used in many well-known projects, ex. Chromium.
But it's not set for clang-tidy, so for ex. DCHECK in Chromium is not considered
as [[no-return]], and a lot of false-positive warnings about nullptr
dereferenced are emitted.

Differential Revision: https://reviews.llvm.org/D46325

llvm-svn: 331474
2018-05-03 18:26:39 +00:00
Alexander Kornienko 8d4bc72788 [clang-tidy] Remove AnalyzeTemporaryDtors option.
Remove the `AnalyzeTemporaryDtors` option, since the corresponding
`cfg-temporary-dtors` option of the Static Analyzer defaults to `true` since
r326461.

llvm-svn: 331456
2018-05-03 14:40:37 +00:00
Zinovy Nis af2657bb2c [clang-tidy][modernize-raw-string-literal] Don't replace upper ASCII with raw literals
It's useless and not safe to replace UTF-8 encoded with escaped ASCII to raw UTF-8 chars:
"\xE2\x98\x83" ---> <snowman>
So don't do it.

llvm-svn: 331297
2018-05-01 18:46:32 +00:00
Ben Hamilton 969d63ea8c [clang-tidy/google-runtime-int] Allow passing non-bitwidth types to printf()-style APIs
Summary:
The `google-runtime-int` check currently fires on calls like:

  printf("%lu", (unsigned long)foo);

However, the style guide says:

> Where possible, avoid passing arguments of types specified by
> bitwidth typedefs to printf-based APIs.

http://google.github.io/styleguide/cppguide.html#64-bit_Portability

This diff relaxes the check to not fire on parameters to functions
with the `__format__` attribute. (I didn't specifically check
for `__printf__` since there are a few variations.)

Test Plan: New tests added. Ran tests with:
  % make -j16 check-clang-tools

Reviewers: alexfh, bkramer

Reviewed By: alexfh

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D46293

llvm-svn: 331268
2018-05-01 14:48:54 +00:00
Ben Hamilton d4fb951ce3 [clang-tidy] Add Apple prefix acronyms to objc-property-declaration
Summary:
This adds a few common Apple first-party API prefixes as acronyms to
`objc-property-declaration`.

Here's a list showing where these come from:

http://nshipster.com/namespacing/

Test Plan: New tests added. Ran tests with:
  % make -j16 check-clang-tools

Reviewers: Wizard, hokein

Subscribers: klimek, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D46206

llvm-svn: 331267
2018-05-01 14:48:51 +00:00
Sam McCall a4962cce49 [clangd] Fix unicode handling, using UTF-16 where LSP requires it.
Summary:
The Language Server Protocol unfortunately mandates that locations in files
be represented by line/column pairs, where the "column" is actually an index
into the UTF-16-encoded text of the line.
(This is because VSCode is written in JavaScript, which is UTF-16-native).

Internally clangd treats source files at UTF-8, the One True Encoding, and
generally deals with byte offsets (though there are exceptions).

Before this patch, conversions between offsets and LSP Position pretended
that Position.character was UTF-8 bytes, which is only true for ASCII lines.
Now we examine the text to convert correctly (but don't actually need to
transcode it, due to some nice details of the encodings).

The updated functions in SourceCode are the blessed way to interact with
the Position.character field, and anything else is likely to be wrong.
So I also updated the other accesses:
 - CodeComplete needs a "clang-style" line/column, with column in utf-8 bytes.
   This is now converted via Position -> offset -> clang line/column
   (a new function is added to SourceCode.h for the second conversion).
 - getBeginningOfIdentifier skipped backwards in UTF-16 space, which is will
   behave badly when it splits a surrogate pair. Skipping backwards in UTF-8
   coordinates gives the lexer a fighting chance of getting this right.
   While here, I clarified(?) the logic comments, fixed a bug with identifiers
   containing digits, simplified the signature slightly and added a test.

This seems likely to cause problems with editors that have the same bug, and
treat the protocol as if columns are UTF-8 bytes. But we can find and fix those.

Reviewers: hokein

Subscribers: klimek, ilya-biryukov, ioeric, MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D46035

llvm-svn: 331029
2018-04-27 11:59:28 +00:00
Jonathan Coe b9b3a62727 [clang-tidy] Improve bugprone-unused-return-value check
Summary:
Add support for checking class template member functions.

Also add the following functions to be checked by default:

- std::unique_ptr::release
- std::basic_string::empty
- std::vector::empty

Reviewers: alexfh, hokein, aaron.ballman, ilya-biryukov

Reviewed By: aaron.ballman

Subscribers: jbcoe, xazax.hun, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D45891

Patch by khuttun (Kalle Huttunen)

llvm-svn: 330772
2018-04-24 21:25:16 +00:00
Benjamin Kramer 080436fd0f [clangd] Commit a heinous crime to make test hermetic and not depend on the standard library being around.
llvm-svn: 330754
2018-04-24 18:40:44 +00:00
Gabor Horvath 2735166156 [clang-tidy] Fix PR35468
Differential Revision: https://reviews.llvm.org/D46003

llvm-svn: 330719
2018-04-24 14:45:58 +00:00
Marc-Andre Laperle b387b6e6dc [clangd] Implementation of workspace/symbol request
Summary:
This is a basic implementation of the "workspace/symbol" request which is
used to find symbols by a string query. Since this is similar to code completion
in terms of result, this implementation reuses the "fuzzyFind" in order to get
matches. For now, the scoring algorithm is the same as code completion and
improvements could be done in the future.

The index model doesn't contain quite enough symbols for this to cover
common symbols like methods, enum class enumerators, functions in unamed
namespaces, etc. The index model will be augmented separately to achieve this.

Reviewers: sammccall, ilya-biryukov

Reviewed By: sammccall

Subscribers: jkorous, hokein, simark, sammccall, klimek, mgorny, ilya-biryukov, mgrang, jkorous-apple, ioeric, MaskRay, cfe-commits

Differential Revision: https://reviews.llvm.org/D44882

llvm-svn: 330637
2018-04-23 20:00:52 +00:00
Jan Korous 1bc528cd9a [clangd][tests] Fix delimiter handling
Empty line shouldn't be considered a delimiter

Differential Revision: https://reviews.llvm.org/D45764

llvm-svn: 330609
2018-04-23 15:58:42 +00:00
Jan Korous 6243515139 [clangd][tests] Fix handling of EOF in delimited input
Request in delimited input ended by EOF shouldn't be an error state.
Comments at the end of test file shouldn't be logged as an error state.
Input mirroring should work for the last request in delimited test file.

llvm-svn: 330608
2018-04-23 15:55:07 +00:00
Manuel Klimek 185a5ea70b Fix tests after changes to clang-format in r330573.
We do now both:
- stop reformatting a sequence after a closing brace in more cases, in
  order to not misindent after an incorrect closing brace
- format the closing brace when formatting the line containing the
  opening brace

llvm-svn: 330580
2018-04-23 11:47:59 +00:00
Yan Zhang f2876e3385 update readability-identifier-naming-objc test to use interface ivar. Implementation ivars are not supported in 32-bits OS.
Reviewers: alexfh, chandlerc

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D45936

llvm-svn: 330562
2018-04-23 01:05:02 +00:00
Yan Zhang 004b6c6842 update test to use ivar in implementation instead of class extension
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
2018-04-23 00:15:15 +00:00
Chandler Carruth e6bfb2c71d Revert r330492: [clang-tidy] add new check to find out objc ivars which do not have prefix '_'
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
2018-04-21 23:27:34 +00:00
Zinovy Nis eba2857bed [clang-tidy] Customize FileCheck prefix in check_clang-tidy.py
The patch introduces a new command line option '-check-suffix' for check_clang_tidy.py 
to allow multiple %check_clang_tidy% in a single test file.

Sample:

// RUN: %check_clang_tidy -check-suffix=FLAG-1 %s misc-unused-using-decls %t -- -- <options-set-1>
// RUN: %check_clang_tidy -check-suffix=FLAG-2 %s misc-unused-using-decls %t -- -- <options-set-2> 
...
+// CHECK-MESSAGES-FLAG-1: :[[@LINE-4]]:10: warning: using decl 'B' is unused [misc-unused-using-decls]
+// CHECK-MESSAGES-FLAG-2: :[[@LINE-7]]:10: warning: using decl 'A' is unused [misc-unused-using-decls]
+// CHECK-FIXES-FLAG-1-NOT: using a::A;$
+// CHECK-FIXES-FLAG-2-NOT: using a::B;$

Differential Revision: https://reviews.llvm.org/D45776

llvm-svn: 330511
2018-04-21 15:23:56 +00:00
Yan Zhang e3f50ecb3a [clang-tidy] add new check to find out objc ivars which do not have prefix '_'
Summary:
For code of ivar declaration:

   int barWithoutPrefix;

The fix will be:

   int _barWithoutPrefix;

Reviewers: benhamilton, hokein, alexfh, aaron.ballman, ilya-biryukov

Reviewed By: alexfh

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

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D45392

llvm-svn: 330492
2018-04-20 23:18:09 +00:00
Douglas Yung 50c7db17f7 Fix test from r330245 on Windows.
llvm-svn: 330305
2018-04-18 23:58:05 +00:00
Yan Zhang 0313614f4d add extra acronyms for objc property names
Summary: This is to support general acronyms in Objective-C like 2G/3G/4G/... and coordinates X, Y, Z and W.

Reviewers: benhamilton

Reviewed By: benhamilton

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D45750

llvm-svn: 330286
2018-04-18 20:09:10 +00:00
Haojian Wu 10e50c8797 [clang-tidy] Fix clang-tidy doesn't read .clangtidy configuration file.
Summary: Fix https://bugs.llvm.org/show_bug.cgi?id=34900.

Reviewers: alexfh

Reviewed By: alexfh

Subscribers: JonasToth, klimek, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D45697

llvm-svn: 330245
2018-04-18 08:54:28 +00:00
Roman Lebedev 4d37af003f [clang-tidy] readability-function-size: add VariableThreshold param.
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
2018-04-12 12:06:42 +00:00
Zinovy Nis 60874d4faf [clang-tidy] [modernize-use-auto] Fix test modernize-use-auto-new-remove-stars.cpp after improvement
'tooling::fixit::getText' considers a length of "int *" to be 5 instead of 3 
in a new algorithm in https://reviews.llvm.org/rCTE329873. It was the root of 
the test failure.

llvm-svn: 329881
2018-04-12 06:45:47 +00:00
Malcolm Parsons 7c3e14b63b [clang-apply-replacements] Convert tooling::Replacements to tooling::AtomicChange for conflict resolving of changes, code cleanup, and code formatting.
Summary:
By converting Replacements by AtomicChange, clang-apply-replacements is able like clang-tidy to automatically cleanup and format changes.
This should permits to close this ticket: https://bugs.llvm.org/show_bug.cgi?id=35051 and attempt to follow hints from https://reviews.llvm.org/D43500 comments.

Reviewers: klimek, ioeric

Reviewed By: ioeric

Subscribers: malcolm.parsons, mgorny, cfe-commits

Differential Revision: https://reviews.llvm.org/D43764

Patch by Jeremy Demeule.

llvm-svn: 329813
2018-04-11 14:39:17 +00:00
Jonas Toth 057f5a1259 [clang-tidy] fix buildbots from hicpp-signed-bitwise
The applied patch to diagnose assignment operators introduced
breakage on some architectures. This patch tries to rectify that.

llvm-svn: 329790
2018-04-11 10:22:25 +00:00
Jonas Toth 0f5f41df93 [clang-tidy] add missing assignment operations in hicpp-signed-bitwise
This patch resolves the bug https://bugs.llvm.org/show_bug.cgi?id=36963.

- implement missing assignment operators for hicpp-signed-bitwise
- mention fix in release notes

Reviewers:
aaron.ballman, hokein, alexfh

Differential: https://reviews.llvm.org/D45414
llvm-svn: 329789
2018-04-11 09:53:08 +00:00
George Burgess IV 3b151b2189 [clang-tidy] Add a `android-comparison-in-temp-failure-retry` check
This check attempts to catch buggy uses of the `TEMP_FAILURE_RETRY`
macro, which is provided by both Bionic and glibc.

Differential Revision: https://reviews.llvm.org/D45059

llvm-svn: 329759
2018-04-10 21:22:22 +00:00
Roman Lebedev 9f742bc2e9 [clang-tidy] Unbreak run-clang-tidy.cpp test (modernize-use-auto.MinTypeNameLength)
Again, refs. D45405, rL329730.

llvm-svn: 329756
2018-04-10 20:59:27 +00:00
Zinovy Nis e68c7fa1e5 [clang-tidy] [modernize-use-auto] Add a threshold for minimal type name length to be replaced with 'auto'
The threshold option is 'MinTypeNameLength' with default value '5'. 
With MinTypeNameLength == 5 'int'/'bool' and 'const int'/'const bool' 
will not be converted to 'auto', while 'unsigned' will be. 

Differential Revision: https://reviews.llvm.org/D45405

llvm-svn: 329730
2018-04-10 18:05:24 +00:00
Alexander Kornienko c3ad02e840 [clang-tidy] Return non-zero exit code for clang errors.
Summary:
Updated tests broken by this change.
Fixes https://bugs.llvm.org/show_bug.cgi?id=27628

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: klimek, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D45258

llvm-svn: 329579
2018-04-09 15:12:10 +00:00
Zinovy Nis 95ea1b05fd [clang-tidy] Check if grand-..parent's virtual method was called instead of overridden parent's.
class A {...int virtual foo() {...}...}; 
class B: public A {...int foo() override {...}...}; 
class C: public B {...int foo() override {... A::foo()...}};
                                              ^^^^^^^^ warning: qualified name A::foo refers to a member overridden in subclass; did you mean 'B'? [bugprone-parent-virtual-call] 

Differential Revision: https://reviews.llvm.org/D44295

llvm-svn: 329448
2018-04-06 20:02:50 +00:00
Benjamin Kramer be92ce14e1 [clang-tidy] Remove google-runtime-member-string-references
This is triggering on a pattern that's both too broad (const
std::string& members can be used safely) and too narrow (std::string is
not the only class with this problem). It has a very low true positive
rate, just remove it until we find a better solution for dangling string
references.

llvm-svn: 329292
2018-04-05 14:51:01 +00:00
Alexander Kornienko b1c746ef04 [clang-tidy] Rename -warnings-as-errors tests. NFC.
The tests will be more discoverable with proper names.

llvm-svn: 329182
2018-04-04 12:40:00 +00:00
Haojian Wu dc62da4e0b [clang-tidy] Check for sizeof that call functions
Summary:
A common mistake that I have found in our codebase is calling a function to get an integer or enum that represents the type such as:

```
int numBytes = numElements * sizeof(x.GetType());
```

So this extends the `sizeof` check to check for these cases. There is also a `WarnOnSizeOfCall` option so it can be disabled.

Patch by Paul Fultz II!

Reviewers: hokein, alexfh, aaron.ballman, ilya-biryukov

Reviewed By: alexfh

Subscribers: lebedev.ri, xazax.hun, jkorous-apple, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D44231

llvm-svn: 329073
2018-04-03 15:10:24 +00:00
Mike Edwards ac6a6577d9 Revert r328932 as it caused Windows and MacOS bot failures.
http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/43991/

llvm-svn: 328997
2018-04-02 18:02:36 +00:00
Zinovy Nis c16815ca8a [clang-tidy] Define __clang_analyzer__ macro for clang-tidy for compatibility with clang static analyzer
This macro is widely used in many well-known projects, ex. Chromium.
But it's not set for clang-tidy, so for ex. DCHECK in Chromium is not considered as [[no-return]], and a lot of false-positive warnings about nullptr dereferenced are emitted.
This patch fixes the issue by explicitly added macro definition.

Differential Revision: https://reviews.llvm.org/D44906

llvm-svn: 328932
2018-04-01 11:51:57 +00:00
Reid Kleckner 93e2228648 Attempt to fix clangd test on Windows by wildcarding drive letters
llvm-svn: 328645
2018-03-27 17:44:12 +00:00
Krasimir Georgiev 20505898cb [clang-move] Fix test failing due to clang-format change
r328621 reverted the removal of empty lines before the closing `}` in
namespaces.

llvm-svn: 328622
2018-03-27 13:39:33 +00:00
Simon Marchi 9808262ede [clangd] Support incremental document syncing
Summary:
This patch adds support for incremental document syncing, as described
in the LSP spec.  The protocol specifies ranges in terms of Position (a
line and a character), and our drafts are stored as plain strings.  So I
see two things that may not be super efficient for very large files:

- Converting a Position to an offset (the positionToOffset function)
  requires searching for end of lines until we reach the desired line.
- When we update a range, we construct a new string, which implies
  copying the whole document.

However, for the typical size of a C++ document and the frequency of
update (at which a user types), it may not be an issue.  This patch aims
at getting the basic feature in, and we can always improve it later if
we find it's too slow.

Signed-off-by: Simon Marchi <simon.marchi@ericsson.com>

Reviewers: malaperle, ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: MaskRay, klimek, mgorny, ilya-biryukov, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D44272

llvm-svn: 328500
2018-03-26 14:41:40 +00:00
Julie Hockett e975a473b7 [clang-doc] Reland "[clang-doc] Setup clang-doc frontend framework"
Fixed windows release build tests.

llvm-svn: 328270
2018-03-22 23:34:46 +00:00
Alexander Kornienko 301faac18b clang-tidy, modularize: return non-zero exit code on errors
When no inputs given, the tools should not only produce the help message, but
also return a non-zero exit code. Fixed tests accordingly.

llvm-svn: 328199
2018-03-22 14:18:20 +00:00
Julie Hockett 2a0373a2db Revert "[clang-doc] Reland "[clang-doc] Setup clang-doc frontend framework""
This reverts commit r328150 until we can fix the test that are failing
on the Windows release build.

llvm-svn: 328172
2018-03-22 02:05:51 +00:00
Julie Hockett 1442a5dd3a [clang-doc] Reland "[clang-doc] Setup clang-doc frontend framework"
Fixing the the failing Windows tests.

llvm-svn: 328150
2018-03-21 21:21:45 +00:00
Julie Hockett 6f22226d6c Reland "[lit] Adding config initialization to lit tests in clang-tools-extra"
Adding the config initialization to clang-tools-extra so that tests that
use REQUIRES, UNSUPPORTED, and XFAIL based on platform or target triple
work properly.

llvm-svn: 328131
2018-03-21 18:50:26 +00:00
Julie Hockett 6e79ac5339 [clang-tidy] Marking hicpp-no-assembler-msvc unsupported on Windows
After changes to lit.site.cfg.in, the test is now running (and failing)
on windows, so temporarily marking it unsupported. See PR36855 for more
details.

llvm-svn: 328127
2018-03-21 18:03:41 +00:00
Jonas Toth bf50a7f880 [clang-tidy] Resubmit hicpp-multiway-paths-covered without breaking test
The original check did break the green buildbot in the sanitizer build.
It took a while to redroduce and understand the issue.

There occured a stackoverflow while parsing the AST. The testcase with
256 case labels was the problem because each case label added another
stackframe. It seemed that the issue occured only in 'RelWithDebInfo' builds
and not in normal sanitizer builds.

To simplify the matchers the recognition for the different kinds of switch
statements has been moved into a seperate function and will not be done with
ASTMatchers. This is an attempt to reduce recursion and stacksize as well.

The new check removed this big testcase. Covering all possible values is still
implemented for bitfields and works there. The same logic on integer types
will lead to the issue.

Running it over LLVM gives the following results:


Differential: https://reviews.llvm.org/D40737
llvm-svn: 328107
2018-03-21 15:34:15 +00:00
Alexander Kornienko 670c6315ac [clang-tidy][modernize-make-unique] Checks c++14 flag before using std::make_unique
Summary: For a c++11 code, the clang-tidy rule "modernize-make-unique" should return immediately, as std::make_unique is not supported.

Reviewers: hokein, aaron.ballman, ilya-biryukov, alexfh

Reviewed By: hokein, aaron.ballman, alexfh

Subscribers: Quuxplusone, xazax.hun, cfe-commits

Tags: #clang-tools-extra

Patch by Frederic Tingaud!

Differential Revision: https://reviews.llvm.org/D43766

llvm-svn: 328101
2018-03-21 14:39:24 +00:00
Petr Hosek 98c1aefdff Revert "[lit] Adding config initialization to lit tests in clang-tools-extra"
This reverts commit r328060 because a test that was inteded to run on
Windows but never ran before due to the missing config initialization
is now being executed and is failing.

llvm-svn: 328069
2018-03-21 02:28:22 +00:00
Julie Hockett bb059deacb [lit] Adding config initialization to lit tests in clang-tools-extra
Adding the config initialization to clang-tools-extra so that tests that
use REQUIRES, UNSUPPORTED, and XFAIL based on platform or target triple
work properly.

Differential Revision: https://reviews.llvm.org/D44708

llvm-svn: 328060
2018-03-20 23:22:50 +00:00
Douglas Yung 2ecc0d3954 Fixup test to explicitly use -fexceptions since exceptions are disabled by default on the PS4 target.
llvm-svn: 327911
2018-03-19 21:22:58 +00:00
Haojian Wu 4f3eecdf87 [clang-move] Fix the failing test caused by changes in clang-format.
llvm-svn: 327887
2018-03-19 19:13:03 +00:00
Fangrui Song db937c9e45 [clang-move] Fix move-used-helper-decls.cpp test.
llvm-svn: 327885
2018-03-19 19:05:53 +00:00
Miklos Vajna 10fe9bc79e run-clang-tidy: forward clang-tidy exit status
Exit with a non-zero value in case any of the underlying clang-tidy
invocations exit with a non-zero value.

This is useful in case WarningsAsErrors is enabled for some of the
checks: if any of those checks find something, the exit status now
reflects that.

Also add the ability to use run-clang-tidy.py via lit, and assert that
the exit code is not 0 when modernize-use-auto is triggered
intentionally.

Reviewers: alexfh, aaron.ballman

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D44366

llvm-svn: 327854
2018-03-19 14:43:59 +00:00
Alexander Kornienko fcefdb877c [clang-tidy] New check bugprone-unused-return-value
Summary:
Detects function calls where the return value is unused.

Checked functions can be configured.

Reviewers: alexfh, aaron.ballman, ilya-biryukov, hokein

Reviewed By: alexfh, aaron.ballman

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

Tags: #clang-tools-extra

Patch by Kalle Huttunen!

Differential Revision: https://reviews.llvm.org/D41655

llvm-svn: 327833
2018-03-19 13:02:32 +00:00
Alexander Kornienko 67112853c2 [clang-tidy] rename_check.py misc-unused-raii bugprone-unused-raii --check_class_name=UnusedRAIICheck
llvm-svn: 327610
2018-03-15 08:27:42 +00:00
Alexander Kornienko 68fb65f413 [clang-tidy] rename_check.py misc-sizeof-container bugprone-sizeof-container
llvm-svn: 327608
2018-03-15 08:26:47 +00:00
Alexander Kornienko 3273888536 [clang-tidy] rename_check.py misc-sizeof-expression bugprone-sizeof-expression
llvm-svn: 327607
2018-03-15 08:26:19 +00:00
Alexander Kornienko 7ff6076129 [clang-tidy] rename_check.py {misc,bugprone}-macro-parentheses
llvm-svn: 327606
2018-03-15 08:25:39 +00:00
Julie Hockett b6f7c934ac [clang-tidy] Add Zircon module to clang-tidy
Adding a Zircon module to clang-tidy for checks specific to the Zircon
kernel, and adding a checker to fuchsia-zx (for zircon) to flag instances
where specific objects are temporarily created.

Differential Revision: https://reviews.llvm.org/D44346

llvm-svn: 327590
2018-03-14 23:47:50 +00:00
Julie Hockett 729d9f868b Revert "Reland "[clang-doc] Setup clang-doc frontend framework""
This reverts commit r327295 since it was causing the Windows bots to
fail.

llvm-svn: 327346
2018-03-12 23:23:24 +00:00
Julie Hockett 93be22f418 Reland "[clang-doc] Setup clang-doc frontend framework"
There was a missing newline in the docs, and a static_assert that needed
to be a normal assert.

llvm-svn: 327295
2018-03-12 17:05:14 +00:00
Ilya Biryukov 71028b83e7 [clangd] Revamp handling of diagnostics.
Summary:
The new implementation attaches notes to diagnostic message and shows
the original diagnostics in the message of the note.

Reviewers: hokein, ioeric, sammccall

Reviewed By: sammccall

Subscribers: klimek, mgorny, cfe-commits, jkorous-apple

Differential Revision: https://reviews.llvm.org/D44142

llvm-svn: 327282
2018-03-12 15:28:22 +00:00
Haojian Wu 06eeb5c00f [clangd] Fix failing lit test.
This test is missed in r327129.

llvm-svn: 327131
2018-03-09 14:16:46 +00:00
Haojian Wu 40571b7c1c [clang-tidy] Add check: replace string::find(...) == 0 with absl::StartsWith
Patch by Niko Weh!

Reviewers: hokein

Subscribers: klimek, cfe-commits, ioeric, ilya-biryukov, ahedberg

Differential Revision: https://reviews.llvm.org/D43847

llvm-svn: 327111
2018-03-09 10:47:14 +00:00
Julie Hockett c8922c16fb Revert "[clang-doc] Setup clang-doc frontend framework"
This reverts commit r327102, since it was breaking the linux-abi-test on
x86.

llvm-svn: 327103
2018-03-09 03:47:18 +00:00
Julie Hockett 671812462a [clang-doc] Setup clang-doc frontend framework
Setting up the mapper part of the frontend framework for a clang-doc
tool. It creates a series of relevant matchers for declarations, and
uses the ToolExecutor to traverse the AST and extract the matching
declarations and comments. The mapper serializes the extracted
information to individual records for reducing and eventually doc
generation.

For a more detailed overview of the tool, see the design document on the
mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-December/056203.html

Differential Revision: https://reviews.llvm.org/D41102

llvm-svn: 327102
2018-03-09 03:16:39 +00:00
Fangrui Song c0e768df90 [clang-tidy] Add "portability" module and rename readability-simd-intrinsics to portability-simd-intrinsics
Reviewers: alexfh

Subscribers: klimek, nemanjai, mgorny, xazax.hun, kbarton, cfe-commits

Differential Revision: https://reviews.llvm.org/D44173

llvm-svn: 326909
2018-03-07 16:57:42 +00:00
Ilya Biryukov 53d6d9369b [clangd] Don't end completion item labels with '::'
llvm-svn: 326809
2018-03-06 16:45:21 +00:00