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63 Commits

Author SHA1 Message Date
Dmitri Gribenko a6fed93f0d Moved GlobList into a separate header file 
Summary:
It is a separate abstraction that is used in more contexts than just
a helper for ClangTidyDiagnosticConsumer.

Subscribers: mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66747

llvm-svn: 369918
 2019-08-26 15:44:32 +00:00
Dmitri Gribenko 282dc72c8b Remove \brief commands from doxygen comments. 
Summary:
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

  for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

[This is analogous to LLVM r331272 and CFE r331834]

Subscribers: srhines, nemanjai, javed.absar, kbarton, MaskRay, jkorous, arphaman, jfb, kadircet, jsji, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66578

llvm-svn: 369643
 2019-08-22 11:32:57 +00:00
Nikolai Kosjar 60e1296a9a [clang-tidy] Make the plugin honor NOLINT 
Instantiate a ClangTidyDiagnosticConsumer also for the plugin case and
let it forward the diagnostics to the external diagnostic engine that is
already in place.

One minor difference to the clang-tidy executable case is that the
compiler checks/diagnostics are referred to with their original name.
For example, for -Wunused-variable the plugin will refer to the check as
"-Wunused-variable" while the clang-tidy executable will refer to that
as "clang-diagnostic- unused-variable". This is because the compiler
diagnostics never reach ClangTidyDiagnosticConsumer.

Differential Revision: https://reviews.llvm.org/D61487

llvm-svn: 362702
 2019-06-06 13:13:27 +00:00
Fangrui Song c2aded5017 [clangd] Respect clang-tidy suppression comments 
This partially fixes https://bugs.llvm.org/show_bug.cgi?id=41218.

Reviewed By: sammccall

Patch by Nathan Ridge!

Differential Revision: https://reviews.llvm.org/D60953

llvm-svn: 361112
 2019-05-19 04:06:52 +00:00
Haojian Wu 42810363de [clang-tidy] NOLINT support for "clang-diagnostic-*". 
Reviewers: alexfh, aaron.ballman

Reviewed By: alexfh

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59255

llvm-svn: 355934
 2019-03-12 16:11:46 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo 
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
 2019-01-19 08:50:56 +00:00
Sam McCall 3c1f4903b7 [clang-tidy] Untangle layering in ClangTidyDiagnosticConsumer somewhat. NFC 
Summary:
Clang's hierarchy is CompilerInstance -> DiagnosticsEngine -> DiagnosticConsumer.
(Ownership is optional/shared, but this structure is fairly clear).

Currently ClangTidyDiagnosticConsumer *owns* the DiagnosticsEngine:
 - this inverts the hierarchy, which is confusing
 - this means ClangTidyDiagnosticConsumer() mutates the passed-in context, which
   is both surprising and limits flexibility
 - it's not possible to use a different DiagnosticsEngine with ClangTidy

This means a little bit more code in the places ClangTidy is used standalone,
but more flexibility in using ClangTidy with other diagnostics configurations.

Reviewers: hokein

Subscribers: xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D54033

llvm-svn: 346418
 2018-11-08 17:42:16 +00:00
Sam McCall cb50e23ba8 [clang-tidy] Get ClangTidyContext out of the business of storing diagnostics. NFC 
Summary:
Currently ClangTidyContext::diag() sends the diagnostics to a
DiagnosticsEngine, which probably delegates to a ClangTidyDiagnosticsConsumer,
which is supposed to go back and populate ClangTidyContext::Errors.

After this patch, the diagnostics are stored in the ClangTidyDiagnosticsConsumer
itself and can be retrieved from there.

Why?
 - the round-trip from context -> engine -> consumer -> context is confusing
   and makes it harder to establish layering between these things.
 - context does too many things, and makes it hard to use clang-tidy as a library
 - everyone who actually wants the diagnostics has access to the ClangTidyDiagnosticsConsumer

The most natural implementation (ClangTidyDiagnosticsConsumer::take()
finalizes diagnostics) causes a test failure: clang-tidy-run-with-database.cpp
asserts that clang-tidy exits successfully when trying to process a file
that doesn't exist.
In clang-tidy today, this happens because finish() is never called, so the
diagnostic is never flushed. This looks like a bug to me.
For now, this patch carefully preserves that behavior, but I'll ping the
authors to see whether it's deliberate and worth preserving.

Reviewers: hokein

Subscribers: xazax.hun, cfe-commits, alexfh

Differential Revision: https://reviews.llvm.org/D53953

llvm-svn: 345961
 2018-11-02 10:01:59 +00:00
Sam McCall dd2120c08f [clang-tidy] Remove false decoupling in ClangTidyContext. NFC 
These getters/setters don't encapsulate any behavior, and can only be
called by friends.

llvm-svn: 345716
 2018-10-31 13:08:19 +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
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
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
Alexander Kornienko 6180337fe1 [clang-tidy] Optimize GlobList::contains 
With large lists of checks and large number of warnings GlobList::contains
starts being ridiculously CPU hungry, since it runs regexp match per glob.
Caching results of glob matching in a StringMap significantly speeds up check
filtering even for small GlobLists.

/tmp/q.cc:

void f() {
  int I;
  {int I;}
  {int I;}
  {int I;}
  ... // 200k times
}

Before the patch:

GlobList with 2 entries:
  $ time clang-tidy-old -checks=-*,modernize-use-override /tmp/q.cc -- -Wshadow
  200000 warnings generated.
  Suppressed 200000 warnings (200000 with check filters).

  real    0m3.826s
  user    0m3.176s
  sys     0m0.504s

GlobList with 28 entries:
  $ time clang-tidy-old -checks=-*,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,modernize-use-override /tmp/q.cc -- -Wshadow
  200000 warnings generated.
  Suppressed 200000 warnings (200000 with check filters).

  real    0m5.000s
  user    0m4.744s
  sys     0m0.060s

GlobList with 158 entries:
  $ time clang-tidy-old -checks=-*,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,modernize-use-override /tmp/q.cc -- -Wshadow
  200000 warnings generated.
  Suppressed 200000 warnings (200000 with check filters).

  real    0m13.920s
  user    0m13.636s
  sys     0m0.104s

With the patch runtime is practically independent from the length of the GlobList:
  $ time clang-tidy-new -checks=-*,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,modernize-use-override /tmp/q.cc -- -Wshadow
  200000 warnings generated.
  Suppressed 200000 warnings (200000 with check filters).

  real    0m2.300s
  user    0m2.104s
  sys     0m0.044s

llvm-svn: 303321
 2017-05-18 01:13:51 +00:00
Alexander Kornienko 21375185e7 Change getChecksFilter() interface to hide implementation details. 
llvm-svn: 303264
 2017-05-17 14:39:47 +00:00
Alexander Kornienko 9660d4d328 [clang-tidy] Allow disabling compatibility check for generated fixes. 
llvm-svn: 302536
 2017-05-09 15:10:26 +00:00
Alexander Kornienko 2561320f80 [clang-tidy] Add FormatStyle configuration option. 
llvm-svn: 299649
 2017-04-06 13:41:29 +00:00
Alexander Kornienko 563de799e3 [clang-tidy] Add check name to YAML export (clang-tools-extra part) 
Add a field indicating the associated check for every replacement to the YAML
report generated with the '-export-fixes' option.  Update
clang-apply-replacements to handle the new format.

Patch by Alpha Abdoulaye!

Differential revision: https://reviews.llvm.org/D26137

llvm-svn: 290893
 2017-01-03 14:36:13 +00:00
Malcolm Parsons cb2e749e46 [clang-tidy] Suppress notes for warnings that were ignored 
Fixes PR30565.

Patch by Nikita Kakuev

llvm-svn: 285861
 2016-11-02 21:14:22 +00:00
Eric Liu 7e5445267f Fix clang-tidy crash when a single fix is applied on multiple files. 
Summary:
tooling::Replacements only holds replacements for a single file, so
this patch makes Fix a map from file paths to tooling::Replacements so that it
can be applied on multiple files.

Reviewers: hokein, alexfh

Subscribers: Prazek, cfe-commits

Differential Revision: https://reviews.llvm.org/D23257

llvm-svn: 278101
 2016-08-09 07:54:49 +00:00
Alexander Kornienko 5d08bb72d9 [clang-tidy] Switch to a more common way of customizing check behavior. 
This should have been done this way from the start, however I somehow missed
r257177.

llvm-svn: 270215
 2016-05-20 13:42:40 +00:00
Benjamin Kramer 8f5eb56df3 [clang-tidy] Add "clang-tidy as a clang plugin" skeleton. 
This doesn't really do much at the moment. You can load it via libclang
and set the -checks via an extra command line argument as illustrated in
the test case. Support for other options (including headers check) is
currently missing. Also when using this with libclang some checks may
not work with the precompiled preamble in place.

This can be used to easily show clang-tidy warnings in an editor
integration as all that's needed is adding command line flags that are
passed into libclang. Warnings and FixIts are exposed via the existing
CXDiagnostic machinery.

Differential Revision: http://reviews.llvm.org/D17807

llvm-svn: 262595
 2016-03-03 08:58:12 +00:00
Haojian Wu f7692a2792 [clang-tidy] Fix a crash issue when clang-tidy runs with compilation database. 
Summary:
The clang-tidy will trigger an assertion if it's not in the building directory.

TEST:
cd <llvm-repo>/
./build/bin/clang-tidy --checks=-*,modernize-use-nullptr -p build tools/clang/tools/extra/clang-tidy/ClangTidy.cpp

The crash issue is gone after applying this patch.

Fixes PR24834, PR26241

Reviewers: bkramer, alexfh

Subscribers: rizsotto.mailinglist, cfe-commits

Differential Revision: http://reviews.llvm.org/D17335

llvm-svn: 261991
 2016-02-26 09:19:33 +00:00
Alexander Kornienko 1612fa07d3 Add a new check, readability-redundant-string-init, that checks unnecessary string initializations. 
Reviewers: hokein, alexfh

Subscribers: cfe-commits

Patch by Shuai Wang!

Differential Revision: http://reviews.llvm.org/D17586

llvm-svn: 261939
 2016-02-25 23:57:23 +00:00
Jonathan Roelofs d60388a985 Teach clang-tidy how to upgrade warnings into errors. 
Similar in format to the `-checks=` argument, this new `-warnings-as-errors=`
argument upgrades any warnings emitted by the former to errors.

http://reviews.llvm.org/D15528

llvm-svn: 257642
 2016-01-13 17:36:41 +00:00
Aaron Ballman c00ad6c5fb Disable part of the misc-move-constructor-init checker when the check is enabled through cert-oop11-cpp. The CERT guideline does not cover moveable parameters as part of the OOP11-CPP recommendation, just copy construction from move constructors. 
llvm-svn: 257177
 2016-01-08 15:50:51 +00:00
Alexander Kornienko 64956b5e9a Add ExtraArgs and ExtraArgsBefore options to enable clang warnings via configuration files. 
Summary: This patch depends on http://reviews.llvm.org/D14191

Reviewers: djasper, klimek

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D14192

llvm-svn: 252485
 2015-11-09 16:28:11 +00:00
Angel Garcia Gomez 166935764b Fix overlapping replacements in clang-tidy. 
Summary: Prevent clang-tidy from applying fixes to errors that overlap with other errors' fixes, with one exception: if one fix is completely contained inside another one, then we can apply the big one.

Reviewers: bkramer, klimek

Subscribers: djasper, cfe-commits, alexfh

Differential Revision: http://reviews.llvm.org/D13516

llvm-svn: 250509
 2015-10-16 11:43:49 +00:00
Aaron Ballman f36a425eba Reapplying r246209, which exposed language options to the checkers. This time disable UseNullptrCheck when not compiling in C++ mode, but still allow in C++11 mode since it's likely the user wishes to modernize their code. 
llvm-svn: 246298
 2015-08-28 13:20:46 +00:00
Aaron Ballman 46c9ae3578 Reverting r246209 while I investigate a build bot failure: http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/30516 
llvm-svn: 246224
 2015-08-27 22:19:50 +00:00
Aaron Ballman ed916fa458 Expose language options to the checkers; disable UseNullptrCheck when not compiling in C++11 mode. 
llvm-svn: 246209
 2015-08-27 21:17:47 +00:00
Daniel Jasper 4d871f99c7 Lazily initialize HeaderFilter in ClangTidyDiagnosticConsumer. This 
removes a corner case in tests that don't set the diagnostic consumer.
In tests, it is good, not to set the diagnostic consumer so that Clang's
parsing diagnostics are still displayed in the test output and only
ClangTidy's output is analyzed differently.

llvm-svn: 244745
 2015-08-12 13:16:41 +00:00
Alexander Kornienko 19bbeaf410 [clang-tidy] Disable google-readability-casting for .c files and their headers. 
Some people have reasons to compile their .c files as C++ in some configurations
(e.g. for testing purposes), so just looking at LangOptions is not enough. This
patch disables the check on all .c files (and also for the headers included from
.c files).

llvm-svn: 237905
 2015-05-21 14:08:56 +00:00
Alexander Kornienko 6658055488 [clang-tidy] Fixed header guards using clang-tidy llvm-header-guard check. NFC. 
The patch was generated using this command:
$ clang-tidy/tool/run-clang-tidy.py -header-filter=.*clang-tidy.* -fix \
    -checks=-*,llvm-header-guard clang-tidy.*
$ svn revert --recursive clangt-tidy/llvm/
(to revert a few buggy fixes)

llvm-svn: 231669
 2015-03-09 16:52:33 +00:00
Alexander Kornienko 284c249a63 Fixed a typo in a comment. NFC. 
llvm-svn: 224581
 2014-12-19 15:37:02 +00:00
Samuel Benzaquen aedd994560 Add flag --enable-check-profile to clang-tidy. 
Summary:
Add flag --enable-check-profile to clang-tidy.
It turns on per-matcher profiles in MatchFinder and prints a report to
stderr at the end.

Reviewers: alexfh

Subscribers: curdeius, cfe-commits

Differential Revision: http://reviews.llvm.org/D5937

llvm-svn: 220491
 2014-10-23 17:23:20 +00:00
Alexander Kornienko d53d2686b3 Implemented clang-tidy configurability via .clang-tidy files. 
Summary:
This adds a support for the .clang-tidy file reading using
FileOptionsProvider, -dump-config option, and changes tests to not depend on
default checks set.

Reviewers: klimek, bkramer, djasper

Reviewed By: djasper

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D5186

llvm-svn: 217155
 2014-09-04 14:23:36 +00:00
Alexander Kornienko b3d331d18d Rename ChecksFilter to GlobList, as there's nothing specific to checks in it. 
Summary:
Rename ChecksFilter to GlobList, as there's nothing specific to checks in it.
It's a rather generic way to represent sets of strings (or patterns), so it may
be used for something else in ClangTidy. The new name would not look strange
when used to filter other entities.

Reviewers: klimek

Reviewed By: klimek

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4806

llvm-svn: 214961
 2014-08-06 11:49:10 +00:00
Alexander Kornienko ad21688625 Set up clang-tidy diagnostic consumer to print types etc. 
Reviewers: bkramer

Reviewed By: bkramer

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4494

llvm-svn: 212941
 2014-07-14 14:10:03 +00:00
Alexander Kornienko a46952221e Allow per-file clang-tidy options. 
Summary:
This patch makes it possible for clang-tidy clients to provide
different options for different translation units. The option, which doesn't
make sense to be file-dependent, was moved to a separate ClangTidyGlobalOptions
struct. Added parsing of ClangTidyOptions.

Reviewers: klimek

Reviewed By: klimek

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3979

llvm-svn: 210260
 2014-06-05 13:31:45 +00:00
Alexander Kornienko 348cae8e2b Never filter-out compile errors in clang-tidy, display them as errors. 
Summary:
No filters should affect the display of errors. Fixed a few tests,
which had compile errors.

We need to think what we should do with mapped errors (-Werror).

Reviewers: klimek

Reviewed By: klimek

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3982

llvm-svn: 210044
 2014-06-02 20:44:32 +00:00
Alexander Kornienko dad4acbc52 Add clang-tidy -line-filter option to filter findings by line ranges. 
Summary:
This is going to be used for a clang-tidy-diff script to display
warnings in changed lines only. The option uses JSON, as its value is not
intended to be entered manually.

Reviewers: klimek

Reviewed By: klimek

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3873

llvm-svn: 209450
 2014-05-22 16:07:11 +00:00
Alexander Kornienko 23fe95904c Change the behavior of clang-tidy -checks=, remove -disable-checks. 
Summary:
Make checks filtering more intuitive and easy to use. Remove
-disable-checks and change the format of -checks= to a comma-separated list of
globs with optional '-' prefix to denote exclusion. The -checks= option is now
cumulative, so it modifies defaults, not overrides them. Each glob adds or
removes to the current set of checks, so the filter can be refined or overriden
by adding globs.

Example:
  The default value for -checks= is
  '*,-clang-analyzer-alpha*,-llvm-include-order,-llvm-namespace-comment,-google-*',
  which allows all checks except for the ones named clang-analyzer-alpha* and
  others specified with the leading '-'. To allow all google-* checks one can
  write:
    clang-tidy -checks=google-* ...
  If one needs only google-* checks, we first need to remove everything (-*):
    clang-tidy -checks=-*,google-*
  etc.

I'm not sure if we need to change something here, so I didn't touch the docs
yet.

Reviewers: klimek, alexfh

Reviewed By: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3770

llvm-svn: 208883
 2014-05-15 14:27:36 +00:00
Alexander Kornienko c0093609b0 Allow ClangTidyDiagnosticConsumer to be reused. 
llvm-svn: 208420
 2014-05-09 15:50:15 +00:00
Alexander Kornienko 826b5adb6c Store Errors inside ClangTidyContext instead of just pointer to an external 
array. This simplifies usage of ClangTidyContext a bit and seems to be more
consistent.

Reviewers: klimek

Reviewed By: klimek

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3685

llvm-svn: 208407
 2014-05-09 12:24:09 +00:00
Alexander Kornienko 5d174547a9 Print stats on displayed and ignored warnings. 
Summary:
Also displays a hint to use -header-filter='.*' in case any warnings
are in non-user code. This will help discoverability of this option.

Reviewers: klimek

Reviewed By: klimek

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3621

llvm-svn: 208174
 2014-05-07 09:06:53 +00:00
Alexander Kornienko 9ff5b6f3ca Add clang-tidy -header-filter option 
Summary:
Add clang-tidy -header-filter option to specify from which headers we
want diagnostics to be printed. By default we don't print diagnostics from
headers. We always print diagnostics from the main file of each translation
unit.

Reviewers: djasper, klimek

Reviewed By: klimek

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D3590

llvm-svn: 207970
 2014-05-05 14:54:47 +00:00
Alexander Kornienko 33a9bcce29 Add ClangTidyOptions to encapsulate all clang-tidy options. 
Reviewers: djasper

Reviewed By: djasper

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3544

llvm-svn: 207532
 2014-04-29 15:20:10 +00:00
NAKAMURA Takumi 338eee1964 ClangTidyContext: Don't use initializer on non-static member. 
llvm-svn: 204333
 2014-03-20 10:53:03 +00:00
Alexander Kornienko 09952d2d71 Post-filter clang-tidy diagnostic messages. 
Summary:
This patch implements filtering of clang-tidy diagnostic messages by
the check name, so that "clang-tidy -checks=^llvm-" won't output any clang
warnings, for example. This is also helpful to run specific static-analyzer
checks: static analyzer always needs core checks to be enabled, but the user may
be interested only in the checks he asked for.

This patch also exposes warning option names for built-in diagnostics. We need
to have a namespace for these names to avoid collisions and to allow convenient
filtering, so I prefix them with "-W". I'm not sure it's the best thing to do,
and maybe "W" or "clang-diagnostic-" or something like this would be better.

Reviewers: klimek

Reviewed By: klimek

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D3121

llvm-svn: 204321
 2014-03-20 09:38:22 +00:00
Alexander Kornienko 6fbc619ab9 Use DiagnosticRenderer to convert clang diagnostics to clang-tidy ones. 
Summary:
This is immediately useful for generating macro expansion notes, and
may be useful for other things later on.

Reviewers: klimek, djasper

Reviewed By: klimek

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2950

llvm-svn: 203457
 2014-03-10 13:11:17 +00:00