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1069 Commits

Author SHA1 Message Date
Alexander Kornienko 91dafe09b0 [clang-tidy] Fix modernize-use-override incorrect replacement 
Summary:
For the following code: `modernize-use-override` generates a replacement with incorrect location.
```
struct IntPair
{
  int first, second;
};

struct A
{
  virtual void il(IntPair);
};

struct B : A
{
  void il(IntPair p = {1, (2 + 3)}) {};
  // Generated Fixit: void il(IntPair p = override {1, (2 + 3)}) {};
  // Should be: void il(IntPair p = {1, (2 + 3)}) override {};
};
```
This fixes that and adds a unit test.

Reviewers: alexfh, aaron.ballman, hokein

Reviewed By: alexfh

Subscribers: JDevlieghere, xazax.hun, cfe-commits

Tags: #clang-tools-extra

Patch by Victor Gao!

Differential Revision: https://reviews.llvm.org/D35078

llvm-svn: 307379
 2017-07-07 10:15:24 +00:00
Haojian Wu 040c0f96cc [clang-tidy] Add "MakeSmartPtrFunction" option to modernize-make-shared/unique checks. 
Reviewers: alexfh, aaron.ballman

Reviewed By: alexfh

Subscribers: JDevlieghere, Eugene.Zelenko, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D34206

llvm-svn: 307130
 2017-07-05 07:49:00 +00:00
Jonas Devlieghere b63eb61fc4 [clang-tidy] Resolve cppcoreguidelines-pro-type-member-init false positive 
Summary: https://bugs.llvm.org/show_bug.cgi?id=33557

Reviewers: Eugene.Zelenko, alexfh, aaron.ballman, hokein

Reviewed By: aaron.ballman, hokein

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

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D34932

llvm-svn: 307040
 2017-07-03 16:46:46 +00:00
Richard Smith 02c3baaad2 Fix ODR violations due to abuse of LLVM_YAML_IS_(FLOW_)?SEQUENCE_VECTOR 
This is a short-term fix for PR33650 aimed to get the modules build bots green again.

Remove all the places where we use the LLVM_YAML_IS_(FLOW_)?SEQUENCE_VECTOR
macros to try to locally specialize a global template for a global type. That's
not how C++ works.

Instead, we now centrally define how to format vectors of fundamental types and
of string (std::string and StringRef). We use flow formatting for the former
cases, since that's the obvious right thing to do; in the latter case, it's
less clear what the right choice is, but flow formatting is really bad for some
cases (due to very long strings), so we pick block formatting. (Many of the
cases that were using flow formatting for strings are improved by this change.)

Other than the flow -> block formatting change for some vectors of strings,
this should result in no functionality change.

Differential Revision: https://reviews.llvm.org/D34907

Corresponding LLVM change is r306878.

llvm-svn: 306879
 2017-06-30 20:57:16 +00:00
Yan Wang 600a6133ad [clang-tidy] Rename android-file-open-flag and fix a bug 
Summary:
1. Rename android-file-open-flag to android-cloexec-open.
2. Handle a case when the function is passed as an argument of a function-like macro.

Reviewers: chh

Reviewed By: chh

Subscribers: srhines, mgorny, JDevlieghere, xazax.hun, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D34633

llvm-svn: 306728
 2017-06-29 19:13:29 +00:00
Yan Wang 24340252a4 [clang-tidy][Part3] Add a new module Android and three new checks. 
Summary: -- fopen() should include "e" in their mode string. [android-fopen-mode]

Reviewers: chh, alexfh, aaron.ballman, hokein

Reviewed By: hokein

Subscribers: JDevlieghere, srhines, mgorny, xazax.hun

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D33747

llvm-svn: 306709
 2017-06-29 17:42:23 +00:00
Yan Wang 0b97414707 [clang-tidy][Part2] Add a new module Android and three new checks 
Summary: -- creat() should be replaced by open(). [android-creat-usage] 

Reviewers: chh, alexfh, aaron.ballman, hokein

Reviewed By: hokein

Subscribers: JDevlieghere, srhines, mgorny, xazax.hun

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D33745

llvm-svn: 306708
 2017-06-29 17:40:57 +00:00
Haojian Wu f193bff5be [clang-tidy] Fix modernize-use-nullptr only warns the first NULL argument. 
Reviewers: alexfh

Reviewed By: alexfh

Subscribers: xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D34526

llvm-svn: 306651
 2017-06-29 08:43:36 +00:00
Gabor Horvath 2990ac1ebd [clang-tidy] Enable inline variable definitions in headers 
Differential Revision: https://reviews.llvm.org/D34449

llvm-svn: 306538
 2017-06-28 12:47:35 +00:00
Haojian Wu 7663debbe3 [clang-tidy] Handle new array expressions in modernize-make-unique check. 
Reviewers: alexfh

Reviewed By: alexfh

Subscribers: JDevlieghere, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D34674

llvm-svn: 306421
 2017-06-27 16:25:05 +00:00
Peter Smith d34a65d6b6 [NFC] Update to account for DiagnosticRenderer use of FullSourceLoc 
D31709 [NFC] Refactor DiagnosticRenderer to use FullSourceLoc was committed
in r305684 and reverted in 305688 as clang-tidy and clang-query failed to
build. This change updates the extra tools to use the new interface.

Reviewers: christof, rnk, rsmith, rovka, alexfh

Reviewed By: alexfh

Differential Revision: https://reviews.llvm.org/D34513

llvm-svn: 306385
 2017-06-27 10:04:04 +00:00
Haojian Wu 665494cada [clang-tidy] Fix type names in modernize-use-unique/shared_ptr checks. 
Summary:
If the class being created in unique_ptr is in anonymous nampespace, the
anonymous namespace will be included in the apply-fixes. This patch fix
this.

```
namespace {
class Foo {};
}
std::unique_ptr<Foo> f;
f.reset(new Foo());
// Before the change: f = std::make_unique<(annonymous namespace)::Foo>();
// After the change: f = std::make_unique<Foo>();
```

Reviewers: alexfh

Reviewed By: alexfh

Subscribers: JDevlieghere, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D34286

llvm-svn: 306378
 2017-06-27 08:31:27 +00:00
Yan Wang 36206206cd [clang-tidy][Part1] Add a new module Android and three new checks. 
Summary:
A common source of security bugs is code that opens a file descriptors without using the O_CLOEXEC flag.  (Without that flag, an opened sensitive file would remain open across a fork+exec to a lower-privileged SELinux domain, leaking that sensitive data.).

Add a new Android module and one checks in clang-tidy.
-- open(), openat(), and open64() should include O_CLOEXEC in their flags argument. [android-file-open-flag]

Links to part2 and part3:
https://reviews.llvm.org/D33745
https://reviews.llvm.org/D33747


Reviewers: chh, alexfh, aaron.ballman, hokein

Reviewed By: alexfh, hokein

Subscribers: jbcoe, joerg, malcolm.parsons, Eugene.Zelenko, srhines, mgorny, xazax.hun, cfe-commits, krytarowski

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D33304

llvm-svn: 306165
 2017-06-23 21:37:29 +00:00
Haojian Wu 25e54c93bb [clang-tidy] Fix a false positive in modernize-use-nullptr. 
Summary:
The FP happens when a casting nullptr expression is used within a NULL-default-arguemnt cxx constructor.

Before the fix, the check will give a warning on nullptr when running
with the test case, which should not happen:

```
G(g(static_cast<char*>(nullptr)));
    ^~~~~~~~~~~
    nullptr
```

Reviewers: alexfh

Reviewed By: alexfh

Subscribers: cfe-commits, xazax.hun

Differential Revision: https://reviews.llvm.org/D34524

llvm-svn: 306091
 2017-06-23 09:36:49 +00:00
Roman Lebedev eb6d821cda [clang-tidy] readability-function-size: fix nesting level calculation 
Summary:
A followup for D32942.

Malcolm Parsons has provided a valid testcase that the initial version of the check complained about nested `if`'s.
As it turns out, the culprit is the **partially** un-intentional `switch` fallthrough.
So rewrite the NestingThreshold logic without ab-using+mis-using that switch with fallthrough, and add testcases with nested `if`' where there should be a warning and shouldn't be a warning. This results in a cleaner, simpler code, too.

I guess, now it would be actually possible to pick some reasonable default for `NestingThreshold` setting.

Fixes PR33454.

Reviewers: malcolm.parsons, alexfh

Reviewed By: malcolm.parsons

Subscribers: sbenza, xazax.hun, cfe-commits, aaron.ballman

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D34202

llvm-svn: 305554
 2017-06-16 13:07:47 +00:00
Vassil Vassilev c4c33ce097 [clang-tidy] D33930: Do not pick up by default the LLVM style if passing -format. 
This adds a new flag -style which is passed to clang-apply-replacements and
defaults to file meaning it would pick up the closest .clang-format file in tree.

llvm-svn: 305125
 2017-06-09 22:23:03 +00:00
Roman Lebedev a1cee29608 [clang-tidy] readability-function-size: add NestingThreshold param. 
Summary:
Finds compound statements which create next nesting level after `NestingThreshold` and emits a warning.
Do note that it warns about each compound statement that breaches the threshold, but not any of it's sub-statements, to have readable warnings.

I was able to find only one coding style referencing nesting:
  - https://www.kernel.org/doc/html/v4.10/process/coding-style.html#indentation
     > In short, 8-char indents make things easier to read, and have the added benefit of warning you when you’re nesting your functions too deep.

This seems too basic, i'm not sure what else to test. Are more tests needed?

Reviewers: alexfh, aaron.ballman, sbenza

Reviewed By: alexfh, aaron.ballman

Subscribers: xazax.hun

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D32942

llvm-svn: 305082
 2017-06-09 14:22:10 +00:00
Alexander Kornienko 564f1c74b6 Revert "[clang-tidy] When" -fno-exceptions is used", this warning is better to be suppressed." 
This reverts commit r304949.

https://reviews.llvm.org/D34002#775830

llvm-svn: 305057
 2017-06-09 07:34:58 +00:00
Simon Pilgrim 1496468259 Wdocumentation fix. 
llvm-svn: 304988
 2017-06-08 17:01:01 +00:00
Alexander Kornienko 08936e4740 [clang-tidy] New checker to replace dynamic exception specifications 
Summary:
New checker to replace dynamic exception
specifications

This is an alternative to D18575 which relied on reparsing the decl to
find the location of dynamic exception specifications, but couldn't
deal with preprocessor conditionals correctly without reparsing the
entire file.

This approach uses D20428 to find dynamic exception specification
locations and handles all cases correctly.

Reviewers: aaron.ballman, alexfh

Reviewed By: aaron.ballman, alexfh

Subscribers: xazax.hun, mgehre, malcolm.parsons, mgorny, JDevlieghere, cfe-commits, Eugene.Zelenko, etienneb

Patch by Don Hinton!

Differential Revision: https://reviews.llvm.org/D20693

llvm-svn: 304977
 2017-06-08 14:04:16 +00:00
Yan Wang 98b74fc7d6 [clang-tidy] When" -fno-exceptions is used", this warning is better to be suppressed. 
Summary:  "misc-noexcept-move-constructor" is better not to be issued when "-fno-exceptions" is set.

Reviewers: chh, alexfh, aaron.ballman

Reviewed By: aaron.ballman

Subscribers: aaron.ballman, cfe-commits, xazax.hun

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D34002

llvm-svn: 304949
 2017-06-07 22:39:20 +00:00
Yan Wang bebc9b707c [clang-tidy] When" -fno-exceptions is used", this warning is better to be suppressed. 
Summary: clang-tidy is better not to issues this warning, which checks where the initializer for the object may throw an exception, when "-fno-exceptions" is used.

Reviewers: chh, aaron.ballman

Reviewed By: aaron.ballman

Subscribers: xazax.hun

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D33917

llvm-svn: 304931
 2017-06-07 17:41:59 +00:00
Alexander Kornienko f1dc12eb69 [clang-tidy] Make misc-inaccurate-erase work with real C++11 containers. 
The check failed to match iterator->const_iterator conversion that is happening
at least when using the libstdc++'s vector. We might want to make it match even
more flexible patterns, if we see more false negatives.

llvm-svn: 304879
 2017-06-07 08:25:51 +00:00
Alexander Kornienko 0bdd8a1964 [clang-tidy] misc-inaccurate-erase: support call by pointer 
+ replace matchesName calls with more efficient alternatives.

llvm-svn: 304811
 2017-06-06 17:49:45 +00:00
Florian Gross da197aab63 [clang-tidy] Make misc-static-assert accept assert(!"msg") 
Added negated string literals to the set of IsAlwaysFalse expressions to avoid flagging of assert(!"msg").

Differential Revision: http://reviews.llvm.org/D33827

llvm-svn: 304657
 2017-06-03 10:13:55 +00:00
Alexander Kornienko a49cfef414 [clang-tidy] Add `const` to operator() to fix a warning. 
llvm-svn: 304583
 2017-06-02 18:47:50 +00:00
Alexander Kornienko d9a4491b0a [clang-tidy] check for __func__/__FUNCTION__ in lambdas 
Add a clang-tidy check for using func__/FUNCTION__ inside lambdas. This
evaluates to the string operator(), which is almost never useful and almost
certainly not what the author intended.

Patch by Bryce Liu!

Differential Revision: https://reviews.llvm.org/D33497

llvm-svn: 304570
 2017-06-02 17:36:32 +00:00
Alexander Kornienko 0055d97d4b [clang-tidy] Use getLocalOrGlobal for the StrictMode option 
llvm-svn: 304154
 2017-05-29 13:59:27 +00:00
Florian Gross 7ce3a83c50 (no commit message) 
llvm-svn: 303849
 2017-05-25 11:43:06 +00:00
Chih-Hung Hsieh 2857b1245b [clang-tidy] Do not dereference a null BaseType 
Check BaseType before dereference.
Simplified test case is derived from Android Open Source code.

Differential Revision: https://reviews.llvm.org/D33430

llvm-svn: 303645
 2017-05-23 16:19:04 +00:00
Alexander Kornienko f2dc6492ed [clang-tidy] misc-move-const-arg shouldn't complain on std::move(lambda) 
llvm-svn: 303554
 2017-05-22 14:30:14 +00:00
Alexander Kornienko 1e034c3f22 [clang-tidy] readability-redundant-declaration false positive for defaulted function 
Summary:
```
template <class T>
struct C {
  C();
};

template <class T>
C<T>::C() = default;
```

Causes a readability-redundant-declaration diagnostic. This is caused by `isDefinition` not matching defaulted functions.

Reviewers: alexfh, danielmarjamaki

Reviewed By: alexfh

Subscribers: xazax.hun, cfe-commits

Patch by Florian Gross!
Differential Revision: https://reviews.llvm.org/D33358

llvm-svn: 303552
 2017-05-22 13:58:57 +00:00
Alexander Kornienko a0ddf5fc1c [clang-tidy] readability-braces-around-statements false positive with char literals 
Summary:
Single-line if statements cause a false positive when the last token in the conditional statement is a char constant:

```
if (condition)
  return 'a';
```

For some reason `findEndLocation` seems to skips too many (vertical) whitespaces in this case. The same problem already occured with string literals (https://reviews.llvm.org/D25558), and was fixed by adding a special check for this very case. I just extended the condition to also include char constants. No idea what really causes the issue though.

Reviewers: alexfh

Reviewed By: alexfh

Subscribers: xazax.hun, cfe-commits

Patch by Florian Gross!
Differential Revision: https://reviews.llvm.org/D33354

llvm-svn: 303551
 2017-05-22 13:58:16 +00:00
Simon Pilgrim 8d81c22164 Fix 'not all control paths return a value' warning on windows buildbots. 
llvm-svn: 303344
 2017-05-18 10:48:23 +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 c321a4f2b9 [clang-tidy] Replace matchesName with hasName where no regex is needed 
llvm-svn: 303263
 2017-05-17 14:39:39 +00:00
Alexander Kornienko 63144359c5 [clang-tidy] A bit of refactoring of modernize-replace-auto-ptr. NFC 
llvm-svn: 303256
 2017-05-17 12:57:06 +00:00
Alexander Kornienko 4d5dd3b7ef [clang-tidy] Optimize misc-unused-parameters. NFCI 
Don't traverse AST each time we need to find references to a certain function.
Traverse the AST once using RAV and cache the index of function references.

The speed up on a particular large file was about 1000x.

llvm-svn: 303230
 2017-05-17 02:25:11 +00:00
Alexander Kornienko b215d473dd [clang-tidy] Speed up performance-unnecessary-value-param check 
Moved slower matchers closer to the end. The total speed up on a large file I
was interested in is not huge, just about 10%, since the check seems to be doing
a lot in the check() method.

llvm-svn: 303191
 2017-05-16 17:28:17 +00:00
Alexander Kornienko 50de3ad341 [clang-tidy] Optimize readability-implicit-bool-cast, NFC 
Rearrange matchers to put the most expensive ones closer to the end. Speed up
another 3-5x on some files.

llvm-svn: 303187
 2017-05-16 16:40:46 +00:00
Alexander Kornienko e133140fd1 [clang-tidy] Optimize matchers in readability-implicit-bool-cast. NFC 
Don't repeat `isInTemplateInstantiation()` and `hasAncestor()` unnecessarily.
This speeds up the check by a factor of up to 3 on some large files.

llvm-svn: 303180
 2017-05-16 15:44:42 +00:00
Haojian Wu be6ef0eff9 [clang-tidy] Add "emplace_back" detection in inefficient-vector-operation. 
Reviewers: alexfh, aaron.ballman

Reviewed By: alexfh

Subscribers: cfe-commits, Prazek, malcolm.parsons, xazax.hun

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D33209

llvm-svn: 303157
 2017-05-16 10:39:55 +00:00
Jakub Kuderski 4cdeb41072 [clang-tidy] modernize-use-emplace: Remove unnecessary make_tuple calls 
Summary:
This patch makes modernize-use-emplace remove unnecessary make_ calls from push_back calls and turn them into emplace_back -- the same way make_pair calls are handled.
Custom make_ calls can be removed for custom tuple-like types -- two new options that control that are `TupleTypes` and `TupleMakeFunctions`. By default, the check removes calls to `std::make_pair` and `std::make_tuple`.

Eq.

```
std::vector<std::tuple<int, char, bool>> v;
v.push_back(std::make_tuple(1, 'A', true)); // --> v.emplace_back(1, 'A', true);
```

Reviewers: alexfh, aaron.ballman, Prazek, hokein

Reviewed By: Prazek

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

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D32690

llvm-svn: 303145
 2017-05-16 06:32:38 +00:00
Jakub Kuderski 9ac6c03989 Revert "[clang-tidy] modernize-use-emplace: Remove unnecessary make_tuple calls" 
This reverts commit r303139. The commit made docs build emit a warning.

llvm-svn: 303140
 2017-05-16 05:07:40 +00:00
Jakub Kuderski 7ff204ffdc [clang-tidy] modernize-use-emplace: Remove unnecessary make_tuple calls 
Summary:
This patch makes modernize-use-emplace remove unnecessary make_ calls from push_back calls and turn them into emplace_back -- the same way make_pair calls are handled.
Custom make_ calls can be removed for custom tuple-like types -- two new options that control that are `TupleTypes` and `TupleMakeFunctions`. By default, the check removes calls to `std::make_pair` and `std::make_tuple`.

Eq.

```
std::vector<std::tuple<int, char, bool>> v;
v.push_back(std::make_tuple(1, 'A', true)); // --> v.emplace_back(1, 'A', true);
```

Reviewers: alexfh, aaron.ballman, Prazek, hokein

Reviewed By: Prazek

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

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D32690

llvm-svn: 303139
 2017-05-16 04:25:42 +00:00
Haojian Wu ce4b17fdf3 [clang-tidy] Fix a typo: dequeue => deque 
llvm-svn: 303095
 2017-05-15 18:18:28 +00:00
Alexander Kornienko 1ca0e322a2 Make google-build-using-namespace skip std::.*literals 
Summary:
C++14 added a couple of user-defined literals in the standard library. E.g.
std::chrono_literals and std::literals::chrono_literals . Using them
requires a using directive so do not warn in google-build-using-namespace
if namespace name starts with "std::" and ends with "literals".

Reviewers: alexfh

Reviewed By: alexfh

Subscribers: cfe-commits

Patch by Martin Ejdestig!

Differential Revision: https://reviews.llvm.org/D33010

llvm-svn: 303085
 2017-05-15 17:37:48 +00:00
Alexander Kornienko 7009d65714 [clang-tidy] Partly rewrite readability-simplify-boolean-expr using RAV 
The check was using AST matchers in a very inefficient manner. By rewriting the
BinaryOperator-related parts using RAV, the check was sped up by a factor of
up to 10000 on some files (mostly, generated code using binary operators in
tables), but also significantly sped up for regular large files.
As a side effect, the code became clearer and more readable.

llvm-svn: 303081
 2017-05-15 17:06:51 +00:00
Yan Wang 7696b71d64 [clang-tidy] TwineLocalCheck: add param # checking 
Summary:
The statement **getArg** tries to get the first one without checking, which may cause segmentation fault.

 

Reviewers: chh, bkramer

Reviewed By: bkramer

Subscribers: cfe-commits, xazax.hun

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D33103

llvm-svn: 303001
 2017-05-14 04:14:59 +00:00