Commit Graph

6068 Commits

Author SHA1 Message Date
Sam McCall fc830106e1 [clangd] Don't send semanticHighlights to clients that support semanticTokens.
Summary: This allows the standard mechanism to gracefully displace the old one.

Reviewers: hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77206
2020-04-02 17:38:02 +02:00
Adam Czachorowski 24bb2d1e77 [clangd] Add a tweak for adding "using" statement.
Summary:
This triggers on types and function calls with namespace qualifiers. The
action is to remove the qualifier and instead add a "using" statement at
appropriate place.

It is not always clear where to add the "using" line. Right now we find
the nearest "using" line and add it there, thus keeping with local
convention. If there are no usings, we put it at the deepest relevant
namespace level.

This is an initial version only. There are several improvements that
can be made:
* Support for qualifiers that are not purely namespace (e.g.  record
types, etc).
* Removing qualifier from other instances of the same type/call.
* Smarter placement of the "using" line.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: nridge, mgorny, ilya-biryukov, MaskRay, jkorous, mgrang, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76432
2020-04-02 17:37:38 +02:00
Kadir Cetinkaya da8eda1ab1
[clangd] Get rid of redundant make_uniques 2020-04-02 16:52:13 +02:00
Haojian Wu b420065969 [clangd] Fix an assertion crash in ReferenceFinder.
Summary: The assertion is almost correct, but it fails on refs from non-preamble

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77222
2020-04-02 09:29:20 +02:00
Sylvestre Ledru c6a65bb93f clagn-tidy/doc: Add a link to readability-static-accessed-through-instance from readability-convert-member-functions-to-static 2020-04-01 17:01:48 +02:00
Simon Pilgrim 43eca880c6 Fix "control reaches end of non-void function" warning. NFCI. 2020-04-01 14:08:48 +01:00
Kirill Bobyrev db3d64eebb [clangd-vscode] NFC; Improve wording in documentation and update VSCode tasks
Summary:
VSCode tasks are updated to the latest supported versions: deprecated
values are removed and replaced by their new counterparts.

Reviewers: hokein

Reviewed By: hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76595
2020-04-01 14:16:55 +02:00
Kadir Cetinkaya 43aa04eb7a
[clangd] Run semaCodeComplete only with a preamble
Summary:
It is used by code completion and signature help. Code completion
already uses a special no-compile mode for missing preambles, so this change is
a no-op for that.

As for signature help, it already blocks for a preamble and missing it implies
clang has failed to parse the preamble and retrying it in signature help likely
will fail again. And even if it doesn't, request latency will be too high to be
useful as parsing preambles is expensive.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77204
2020-04-01 13:02:47 +02:00
Sam McCall 038f03cb5e [clangd] Force delayed-template-parsing off in code completion.
Summary:
It prevents code completion entirely in affected method bodies.
The main reason it's turned on is for compatibility with headers, so we turn it
off for the main file only. This is allowed because it's a compatible langopt.

Fixes https://github.com/clangd/clangd/issues/302

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77176
2020-04-01 11:09:15 +02:00
Haojian Wu 72439b6b95 [clangd] Add a flag to turn on recovery-expr.
Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77142
2020-04-01 09:03:56 +02:00
Sam McCall 2dee4d4429 [clangd] Don't build clangdserver for (most) completion tests. NFC 2020-03-31 23:09:36 +02:00
Sam McCall 71177ac168 [clangd] Support new semanticTokens request from LSP 3.16.
Summary:
This is a simpler request/response protocol.

Reference: https://github.com/microsoft/vscode-languageserver-node/blob/master/protocol/src/protocol.semanticTokens.proposed.ts

No attempt to support incremental formatting (yet).

Reviewers: hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76663
2020-03-31 15:14:35 +02:00
Nathan James 3807079d70 [clang-tidy] Fix crash in readability-redundant-string-cstr
Summary: Addresses [[ https://bugs.llvm.org/show_bug.cgi?id=45286 | clang-tidy-11: Crash in DynTypedMatcher::matches during readability-redundant-string-cstr check ]]

Reviewers: aaron.ballman, alexfh, gribozavr2

Reviewed By: gribozavr2

Subscribers: xazax.hun, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D76761
2020-03-31 13:27:32 +01:00
Nathan Ridge b9d9968f63 [clangd] Handle clang-tidy suppression comments for diagnostics inside macro expansions
Summary:
Not handling this was a side-effect of being overly cautious when trying
to avoid reading files for which clangd doesn't have the source mapped.

Fixes https://github.com/clangd/clangd/issues/266

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet,
usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75286
2020-03-29 15:19:13 -04:00
Nathan Ridge 15f1fe1506 clang-format fixes in ClangTidyDiagnosticConsumer.cpp and DiagnosticsTets.cpp
Subscribers: jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77023
2020-03-29 15:19:09 -04:00
Benjamin Kramer 4065e92195 Upgrade some instances of std::sort to llvm::sort. NFC. 2020-03-28 19:23:29 +01:00
Haojian Wu 62dea6e9be Revert "[AST] Build recovery expressions by default for C++."
This reverts commit 0788acbccb.
This reverts commit c2d7a1f79cedfc9fcb518596aa839da4de0adb69:  Revert "[clangd] Add test for FindTarget+RecoveryExpr (which already works). NFC"

It causes a crash on invalid code:

class X {
  decltype(unresolved()) foo;
};
constexpr int s = sizeof(X);
2020-03-26 16:25:32 +01:00
Karl-Johan Karlsson 7055cd42b5 Remove extra ';', NFC
Fixed gcc -Wpedantic warning about extra ';'
2020-03-26 11:23:59 +01:00
Haojian Wu 297a9dac43 [CodeComplete] Don't replace the rest of line in #include completion.
Summary:
The previous behavior was aggressive,
  #include "abc/f^/abc.h"
                foo/  -> candidate
"f/abc.h" is replaced with "foo/", this patch will preserve the "abc.h".

Reviewers: sammccall

Subscribers: jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76770
2020-03-26 11:03:04 +01:00
Sam McCall 159a9f7e76 [AST] Print a<b<c>> without extra spaces in C++11 or later.
Summary: It's not 1998 anymore.

Reviewers: kadircet

Subscribers: jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76801
2020-03-26 09:53:54 +01:00
Sam McCall 6324912592 [clangd] Simplify "preferred" vs "definition" logic a bit in XRefs AST code.
Summary:
Now Preferred is always the canonical (first) decl, Definition is always the def
if available.

In practice the index was already forcing this behaviour anyway, so there's no
change. (Unless you weren't using this index, in which case this patch makes
textDocument/declaration and toggling work as expected).

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73369
2020-03-26 09:52:48 +01:00
Haojian Wu a9ab11d408 [AST] Build recovery expressions for nonexistent member exprs.
Summary: Previously, we dropped the AST node for nonexistent member exprs.

Reviewers: sammccall

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76764
2020-03-26 08:50:33 +01:00
Sam McCall c2d7a1f79c [clangd] Add test for FindTarget+RecoveryExpr (which already works). NFC 2020-03-26 00:40:29 +01:00
Sam McCall 43c63349f5 [clangd] Work around gcc bug after 8f237f9b0 2020-03-26 00:06:54 +01:00
Sam McCall 8f237f9b09 [clangd] Support multiple cursors in selectionRange.
Summary:
One change: because there's no way to signal failure individually for
each cursor, we now "succeed" with an empty range with no parent if a
cursor doesn't point at anything.

Reviewers: usaxena95

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76741
2020-03-25 17:59:09 +01:00
Nathan James 6538b4393d [clang-apply-replacements] No longer deduplucates replacements from the same TU
Summary:
clang-apply-replacements currently deduplicates all diagnostic replacements. However if you get a duplicated replacement from one TU then its expected that it should not be deduplicated. This goes some way to solving [[ https://bugs.llvm.org/show_bug.cgi?id=45150 | export-fixes to yaml adds extra newlines and breaks offsets. ]]

Take this example yaml.
```
---
MainSourceFile:  '/home/nathan/test/test.cpp'
Diagnostics:
  - DiagnosticName:  readability-braces-around-statements
    DiagnosticMessage:
      Message:         statement should be inside braces
      FilePath:        '/home/nathan/test/test.cpp'
      FileOffset:      14
      Replacements:
        - FilePath:        '/home/nathan/test/test.cpp'
          Offset:          14
          Length:          0
          ReplacementText: ' {'
        - FilePath:        '/home/nathan/test/test.cpp'
          Offset:          28
          Length:          0
          ReplacementText: '

}'
  - DiagnosticName:  readability-braces-around-statements
    DiagnosticMessage:
      Message:         statement should be inside braces
      FilePath:        '/home/nathan/test/test.cpp'
      FileOffset:      20
      Replacements:
        - FilePath:        '/home/nathan/test/test.cpp'
          Offset:          20
          Length:          0
          ReplacementText: ' {'
        - FilePath:        '/home/nathan/test/test.cpp'
          Offset:          28
          Length:          0
          ReplacementText: '

}'
...```

The current behaviour is to deduplicate the text insertions at Offset 28 and only apply one of the replacements.
However as both of these replacements came from the same translation unit we can be confident they were both meant to be applied together
The new behaviour won't deduplicate the text insertion and instead insert both of the replacements.
If the duplicate replacement is found inside different translation units (from a header file change perhaps) then they will still be deduplicated as before.

Reviewers: aaron.ballman, gribozavr2, klimek, ymandel

Reviewed By: ymandel

Subscribers: ymandel, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76054
2020-03-25 09:36:36 +00:00
Haojian Wu 0788acbccb [AST] Build recovery expressions by default for C++.
Update the existing tests.

Reviewers: sammccall

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76696
2020-03-25 09:00:48 +01:00
Lorenz Junglas b194e7d631 [clangd] Change line break behaviour for hoverinfo
`parseDocumentation` retains hard line breaks and removes soft line
breaks inside documentation comments.
Wether a line break is hard or soft is determined by the following rules
(some of which have been discussed in
https://github.com/clangd/clangd/issues/95):

Line breaks that are preceded by a punctuation are retained
Line breaks that are followed by "interesting characters" (e.g. Markdown
syntax, doxygen commands) are retained
All other line breaks are removed

Related issue: https://github.com/clangd/clangd/issues/95

Differential Revision: https://reviews.llvm.org/D76094
2020-03-24 12:41:08 +01:00
Sam McCall edf6a19adf [clangd] Rename theia-derived semantic highlighting protocol. NFC
This feature is being added to LSP with a different (request-response)
protocol in 3.16, so this should avoid some confusion.
2020-03-24 00:39:47 +01:00
Nathan James 7693a9b931 [clang-tidy] Fix RenamerClangTidy handling qualified TypeLocs
Summary:
Previously if a type was accessed with a qualifier, RenamerClangTidy wouldn't rename the TypeLoc, this patch addresses this shortfall by trying to find the Unqualified TypeLoc first. Also fixed a broken test case that was dependent on this broken behaviour.

Example:
```
struct a{};

void foo(const a&);
void foo(a&);
void foo(a);
void foo(a&&);
void foo(const a);
```
exec `-checks=readability-identifier-naming --config="{CheckOptions: [{key: readability-identifier-naming.StructCase, value: CamelCase}]}" -fix`
Current Behaviour:
```
struct A{};

void foo(const a&);
void foo(A&);
void foo(A);
void foo(A&&);
void foo(const a);
```
Proposed new behaviour:
```
struct A{};

void foo(const A&);
void foo(A&);
void foo(A);
void foo(A&&);
void foo(const A);
```

Reviewers: aaron.ballman, gribozavr2, alexfh

Reviewed By: aaron.ballman

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76549
2020-03-23 13:45:34 +00:00
Whisperity df5fa48739 [clang-tidy][NFC] Add missing check group docs and order entries
Differential Revision: https://reviews.llvm.org/D76541
2020-03-23 11:05:34 +01:00
Sylvestre Ledru 986051749c doc: use the right url to bugzilla 2020-03-22 22:49:40 +01:00
abelkocsis 770df90451 [clang-tidy] my work: fix sphinx docs 2020-03-21 12:29:39 +01:00
abelkocsis 0f4c70dd3e [clang-tidy] Add spuriously-wake-up-functions check
Summary:
According to
https://wiki.sei.cmu.edu/confluence/display/cplusplus/CON54-CPP.+Wrap+functions+that+can+spuriously+wake+up+in+a+loop
and
https://wiki.sei.cmu.edu/confluence/display/c/CON36-C.+Wrap+functions+that+can+spuriously+wake+up+in+a+loop
misc-spuriously-wake-up-functions check is created. The check finds
`cnd_wait` or `wait` function calls in an `IfStmt` and  warns the user to
replace it with a `WhileStmt` or use it with a lambda parameter.

Reviewers: aaron.ballman, alexfh, hokein, jfb, Charusso

Reviewed By: aaron.ballman

Subscribers: sylvestre.ledru, whisperity, Eugene.Zelenko, mgorny, dexonsmith, cfe-commits, gerazo, xazax.hun, steakhal, Charusso

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D70876
2020-03-21 12:04:03 +01:00
Bjorn Pettersson c6d799156a [clangd] Skip ClangdVFSTest.TestStackOverflow when address sanitizer is used
Summary:
The ClangdVFSTest.TestStackOverflow unittest does not seem to work
when building the test with address sanitizer activated. Afaict the
goal is to get a constexpr depth error, rather than stack overflow.
But with asan instrumentation we do get stack overflow complaints
from asan. As a workaround this patch simply disables the test case,
when being built with address sanitizer activated.

Reviewers: sammccall, Dmitry.Kozhevnikov

Reviewed By: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits, llvm-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76533
2020-03-21 11:07:45 +01:00
Paula Toth 556b917fff [clang-tidy] Merge common code between llvmlibc-restrict-system-libc-headers and portability-restrict-system-includes
Summary:
Made llvmlibc::RestrictSystemLibcHeadersCheck a subclass of protability::RestrictSystemIncludesCheck to re-use common code between the two.
This also adds the ability to white list linux development headers.

Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: mgorny, xazax.hun, MaskRay, cfe-commits, sivachandra

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D76395
2020-03-20 15:53:05 -07:00
Nathan Ridge b89202e842 [clangd] Do not trigger go-to-def textual fallback inside string literals
Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76098
2020-03-19 17:24:45 -04:00
Adam Czachorowski 55b92dcb35 [clangd] Fix elog message when preamble build fails.
Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76429
2020-03-19 15:09:46 +01:00
Nathan James 1365ab4b63 [clang-tidy] RenamerClangTidy now correctly renames `using namespace` decls
Summary: Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=45039 | readability-identifier-naming doesn't rename using namespace correctly. ]]

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

Reviewed By: aaron.ballman

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75220
2020-03-18 22:14:40 +00:00
Alex Cameron 9bb5685b21 [clang-tidy] misc-unconventional-assign-operator suggest to use rvalue references in C++03 mode
Summary:
Bugzilla: https://bugs.llvm.org/show_bug.cgi?id=27702
I wasn't sure how this type of thing is usually tested. So any advice would be appreciated.
`check-llvm`, `check-clang` and `check-clang-tools` are clean for me.
**C++98**
```
tetsuo@garland-c-16-sgp1-01:~/dev/llvm-project/test$ cat compile_commands.json
[
{
  "directory": "/home/tetsuo/dev/llvm-project/test",
  "command": "/usr/bin/c++      -std=gnu++98 -o CMakeFiles/test.dir/test.cpp.o -c /home/tetsuo/dev/llvm-project/test/test.cpp",
  "file": "/home/tetsuo/dev/llvm-project/test/test.cpp"
}
]
tetsuo@garland-c-16-sgp1-01:~/dev/llvm-project/test$ ../build/bin/clang-tidy --checks=misc-unconventional-assign-operator test.cpp
3053 warnings generated.
/home/tetsuo/dev/llvm-project/test/test.cpp:7:3: warning: operator=() should take 'Foo const&' or 'Foo' [misc-unconventional-assign-operator]
  Foo &operator=(Foo &Other) {
  ^
Suppressed 3052 warnings (3052 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
```
**C++17**
```
tetsuo@garland-c-16-sgp1-01:~/dev/llvm-project/test$ cat compile_commands.json
[
{
  "directory": "/home/tetsuo/dev/llvm-project/test",
  "command": "/usr/bin/c++      -std=gnu++17 -o CMakeFiles/test.dir/test.cpp.o -c /home/tetsuo/dev/llvm-project/test/test.cpp",
  "file": "/home/tetsuo/dev/llvm-project/test/test.cpp"
}
]
tetsuo@garland-c-16-sgp1-01:~/dev/llvm-project/test$ ../build/bin/clang-tidy --checks=misc-unconventional-assign-operator test.cpp
5377 warnings generated.
/home/tetsuo/dev/llvm-project/test/test.cpp:7:3: warning: operator=() should take 'Foo const&', 'Foo&&' or 'Foo' [misc-unconventional-assign-operator]
  Foo &operator=(Foo &Other) {
  ^
Suppressed 5376 warnings (5376 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
```

Reviewers: njames93, MaskRay, alexfh, hokein, aaron.ballman

Reviewed By: njames93

Subscribers: xazax.hun, cfe-commits

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D75901
2020-03-18 21:39:23 +00:00
Nathan Ridge 31b7f0ed6a [clangd] Extend findTarget()'s dependent name heuristic to handle enumerators
Fixes https://github.com/clangd/clangd/issues/296

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76103
2020-03-17 18:13:07 -04:00
Sam McCall 704cd4d5d0 [clangd] Only minimally escape text when rendering to markdown.
Summary:
Conservatively escaping everything is bad in coc.nvim which shows the markdown
to the user, and we have reports of it causing problems for other parsers.

Fixes https://github.com/clangd/clangd/issues/301

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75687
2020-03-17 17:10:20 +01:00
Haojian Wu 8a593e29ab [AST] Correct the CXXOperatorCallExpr source range.
Summary:
Previously, the range for "->" CXXOperatorCallExpr is the range of the
class object (not including the operator!), e.g. "[[vector_ptr]]->size()".

This patch includes the range of the operator, which fixes the issue
where clangd doesn't go to the overloaded operator "->" definition.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76128
2020-03-16 16:51:10 +01:00
Paweł Barań 2f20417ef0 Add AllowMissingMoveFunctionsWhenCopyIsDeleted flag to cppcoreguidelines-special-member-functions
The flag allows classes to don't define move operations when copy operations
are explicitly deleted. This flag is related to Google C++ Style Guide
https://google.github.io/styleguide/cppguide.html#Copyable_Movable_Types
2020-03-16 08:14:48 -04:00
Tamás Zolnai 04410c565a [clang-tidy] extend bugprone-signed-char-misuse check.
Summary:
Cover a new use case when using a 'signed char' as an integer
might lead to issue with non-ASCII characters. Comparing
a 'signed char' with an 'unsigned char' using equality / unequality
operator produces an unexpected result for non-ASCII characters.

Reviewers: aaron.ballman, alexfh, hokein, njames93

Reviewed By: njames93

Subscribers: xazax.hun, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D75749
2020-03-14 20:00:00 +01:00
Jan Korous 42b7827411 [clangd] Add json::Object->Value conversion workaround for older compilers
The build was broken for clang-3.8 which we still support.
2020-03-13 14:01:33 -07:00
Hyrum Wright 3860b2a0bd [clang-tidy] Update Abseil Duration Conversion check to find more cases.
This change improves the check to handle cases with internal scalar
multiplication.

Differential Revision: https://reviews.llvm.org/D75558
2020-03-13 12:52:37 -04:00
Kim Viggedal 512767eb3f Add CppCoreGuidelines I.2 "Avoid non-const global variables" check
Cpp Core Guideline I.2, a.k.a "Avoid non-const global variables"
For detailed documentation, see:
https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#i2-avoid-non-const-global-variables
2020-03-13 10:05:13 -04:00
Kadir Cetinkaya ecd3e678bb
[clangd] Populate PreambleData::CompileCommand and make use of it inside buildPreamble
Reviewers: sammccall

Subscribers: ilya-biryukov, javed.absar, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75996
2020-03-13 09:40:47 +01:00
Sam McCall dc4cd43904 [clangd] Add a textual fallback for go-to-definition
Summary:
This facilitates performing go-to-definition in contexts where AST-based
resolution does not work, such as comments, string literals, preprocessor
disabled regions, and macro definitions, based on textual lookup in the index.

Partially fixes https://github.com/clangd/clangd/issues/241

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72874
2020-03-12 16:33:08 -04:00
Paula Toth eb41cc6198 [clang-tidy] Add module for llvm-libc and restrict-system-libc-header-check.
Summary: This adds a new module to enforce standards specific to the llvm-libc project. This change also adds the first check which restricts user from including system libc headers accidentally which can lead to subtle bugs that would be a challenge to detect.

Reviewers: alexfh, hokein, aaron.ballman

Reviewed By: aaron.ballman

Subscribers: juliehockett, arphaman, jfb, abrachet, sivachandra, Eugene.Zelenko, njames93, mgorny, xazax.hun, MaskRay, cfe-commits

Tags: #clang-tools-extra, #libc-project, #clang

Differential Revision: https://reviews.llvm.org/D75332
2020-03-12 11:46:05 -07:00
Jonathan Roelofs 2c9cf9f4dd [clang-tidy] New check: bugprone-suspicious-include
Detects and fixes suspicious code like: `#include "foo.cpp"`.

Inspired by: https://twitter.com/lefticus/status/1228458240364687360?s=20

https://reviews.llvm.org/D74669
2020-03-12 09:59:28 -06:00
Sam McCall 966cad0c65 [clangd] Add README pointing to docs, bugtracker etc. NFC 2020-03-12 14:00:08 +01:00
Sam McCall 57e81a2f64 [clangd] Redirect documentation to clangd.llvm.org.
Reviewers: hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D76053
2020-03-12 11:45:40 +01:00
Reid Kleckner d7c5037e6b Prune TargetInfo.h include from ParsedAttr.h, NFC
Saves ~400 includes of related headers:

$ diff -u <(sort thedeps-before.txt) <(sort thedeps-after.txt) \
    | grep '^[-+] ' | sort | uniq -c | sort -nr
    468 -    llvm-project/clang/include/clang/Basic/TargetInfo.h
    468 -    llvm-project/clang/include/clang/Basic/TargetCXXABI.h
    368 -    llvm-project/llvm/include/llvm/Support/CodeGen.h
    368 -    llvm-project/clang/include/clang/Basic/XRayInstr.h
    368 -    llvm-project/clang/include/clang/Basic/CodeGenOptions.h
    368 -    llvm-project/clang/include/clang/Basic/CodeGenOptions.def
    367 -    llvm-project/llvm/include/llvm/ADT/FloatingPointMode.h
    367 -    llvm-project/clang/include/clang/Basic/DebugInfoOptions.h
2020-03-11 20:47:11 -07:00
Reid Kleckner d6497a521b Add missing StringMap.h inclusion, apparently clangd is not covered by check-clang-tools zzz 2020-03-11 16:47:49 -07:00
Reid Kleckner e08464fb45 Avoid including FileManager.h from SourceManager.h
Most clients of SourceManager.h need to do things like turning source
locations into file & line number pairs, but this doesn't require
bringing in FileManager.h and LLVM's FS headers.

The main code change here is to sink SM::createFileID into the cpp file.
I reason that this is not performance critical because it doesn't happen
on the diagnostic path, it happens along the paths of macro expansion
(could be hot) and new includes (less hot).

Saves some includes:
    309 -    /usr/local/google/home/rnk/llvm-project/clang/include/clang/Basic/FileManager.h
    272 -    /usr/local/google/home/rnk/llvm-project/clang/include/clang/Basic/FileSystemOptions.h
    271 -    /usr/local/google/home/rnk/llvm-project/llvm/include/llvm/Support/VirtualFileSystem.h
    267 -    /usr/local/google/home/rnk/llvm-project/llvm/include/llvm/Support/FileSystem.h
    266 -    /usr/local/google/home/rnk/llvm-project/llvm/include/llvm/Support/Chrono.h

Differential Revision: https://reviews.llvm.org/D75406
2020-03-11 13:53:12 -07:00
Paula Toth f1736f7a2a [clang-tidy] Mock system headers for portability-restrict-system-includes tests.
Summary: Didn't realize that headers such as stddef.h may not exist on all systems. This patch mocks the headers so that the check's tests work on all systems.  (:

Reviewers: RKSimon, aaron.ballman

Reviewed By: aaron.ballman

Subscribers: xazax.hun, cfe-commits

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D76015
2020-03-11 12:13:27 -07:00
Haojian Wu d83ade4506 [clangd] Improve the "max limit" error message in rename, NFC.
previously, we emited "exceeds the max limit 49" which was weird, now we
emit "exceeds the max limit 50".
2020-03-11 16:13:46 +01:00
Hubert Tong 48121a5743 [cmake] Link libclangDaemonTweaks with clangFormat
Speculative fix for buildbot failure in
http://lab.llvm.org:8011/builders/clang-ppc64le-rhel/builds/1881/steps/build%20stage%201/logs/stdio

Cause appears to be D75716.
2020-03-10 21:31:10 -04:00
Paula Toth 54928ba0ec [clang-tidy] Use more widely available headers for protability-restrict-system-includes-check's test 2020-03-10 16:54:11 -07:00
Paula Toth ddfcda0256 [clang-tidy] Fix warning from my previous patch in ReleaseNotes.txt 2020-03-10 14:01:23 -07:00
Nathan Ridge 445195ba6c [clangd] Have visibleNamespaces() and getEligiblePoints() take a LangOptions rather than a FormatStyle
Summary:
These functions only use the FormatStyle to obtain a LangOptions via
format::getFormattingLangOpts(), and some callers can more easily obtain
a LangOptions more directly.

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75716
2020-03-10 16:45:41 -04:00
Nathan Ridge 484402abac [clangd] Run clang-format on CodeComplete.cpp and SourceCodeTests.cpp
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75959
2020-03-10 16:45:14 -04:00
Paula Toth ebdb98f254 [clang-tidy] Move fuchsia-restrict-system-includes to portability module for general use.
Summary:
Created a general check for restrict-system-includes under portability as recommend in the comments under D75332. I also fleshed out the user facing documentation to show examples for common use-cases such as allow-list, block-list, and wild carding.

Removed fuchsia's check as per phosek sugguestion.

Reviewers: aaron.ballman, phosek, alexfh, hokein, njames93

Reviewed By: phosek

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

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D75786
2020-03-10 13:33:06 -07:00
Nathan James 66945b62f4 Add Optional overload to DiagnosticBuilder operator <<
Reviewers: aaron.ballman, gribozavr2, lebedev.ri

Reviewed By: gribozavr2

Subscribers: wuzish, nemanjai, kbarton, arphaman, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75714
2020-03-10 17:44:10 +00:00
Kadir Cetinkaya 39eebe68b5
[clangd] Use a separate RunningTask flag instead of leaving a broken request on top of the queue
Summary:
This helps us prevent races when scheduler (or any other thread) tries
to read a request while it's still running.

Reviewers: sammccall

Subscribers: ilya-biryukov, javed.absar, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75927
2020-03-10 18:25:35 +01:00
Nico Weber 714466bf36 Revert "[clang-tidy] New check: bugprone-suspicious-include"
This reverts commit 1e0669bfe0
(and follow-ups 698a127129 and
52bbdad7d6).
The tests fail fail on Windows, see https://reviews.llvm.org/D74669
2020-03-10 10:28:20 -04:00
Nathan James 1fc5be0669 [NFC] Tweak OptionsUtils 2020-03-10 12:50:58 +00:00
Nathan James 97572fa6e9 [NFC] use hasAnyOperatorName and hasAnyOverloadedOperatorName functions in clang-tidy matchers 2020-03-10 00:42:21 +00:00
Jonathan Roelofs 52bbdad7d6 [clang-tidy][docs] Post-commit feedback on D74669 2020-03-09 16:51:41 -06:00
Jonathan Roelofs 2e9d33bccd Add missing list.rst entry 2020-03-09 16:27:35 -06:00
Jonathan Roelofs 698a127129 release notes: fix new check name 2020-03-09 16:11:35 -06:00
Jonathan Roelofs 1e0669bfe0 [clang-tidy] New check: bugprone-suspicious-include
Detects and fixes suspicious code like: `#include "foo.cpp"`.

Inspired by: https://twitter.com/lefticus/status/1228458240364687360?s=20

https://reviews.llvm.org/D74669
2020-03-09 15:54:32 -06:00
Jonathan Roelofs c71ef7a85d Drop HEADER_ per review feedback on D74669 2020-03-09 12:14:22 -06:00
Jonathan Roelofs 47caa69120 [clang-tidy] Use ; as separator for HeaderFileExtensions
... and deprecate use of ',' for the same.

https://reviews.llvm.org/D75621
2020-03-09 11:32:44 -06:00
Jonathan Roelofs 3486cc014b [clang-tidy] Generalize HeaderFileExtensions.{h,cpp}. NFC
https://reviews.llvm.org/D75489
2020-03-09 11:32:44 -06:00
Haojian Wu e669d81715 [clangd] Bump vscode-clangd v0.0.21.
CHANGELOG:
- better ranking for completions
- enable dot-to-arrow fix in code completion
2020-03-09 15:36:49 +01:00
Haojian Wu 6ba0a4ec3b [clangd][vscode] Enable dot-to-arrow fixes in clangd completion.
Summary:
The previous issue is that the item was filtered out by vscode, because
the prefix (which contains ".") are not matched against the filterText.

This patch works around it by adjusting the item filterText, inspired by
https://reviews.llvm.org/D75623.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75739
2020-03-09 14:02:08 +01:00
Nathan James 2ce821cbc9 Fix build failure from rG223a43ee8d89 2020-03-09 08:12:52 +00:00
Nathan James 223a43ee8d [clang-tidy] [NFC] Remove unnecessary matchers
Reviewers: aaron.ballman, alexfh, gribozavr2

Reviewed By: aaron.ballman

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

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D75803
2020-03-09 07:38:15 +00:00
Nathan James fc3c80c386 [ASTMatchers] adds isComparisonOperator to BinaryOperator and CXXOperatorCallExpr
Reviewers: aaron.ballman, gribozavr2

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75800
2020-03-09 00:05:10 +00:00
Petr Hosek 7003f64c1e [clang-doc] Improving Markdown Output
This change has two components. The moves the generated file
for a namespace to the directory named after the namespace in
a file named 'index.<format>'. This greatly improves the browsing
experience since the index page is shown by default for a directory.

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

Patch By: Clayton

Differential Revision: https://reviews.llvm.org/D72954
2020-03-06 17:37:08 -08:00
Sam McCall c86f794bd5 [clangd][VSCode] Force VSCode to use the ranking provided by clangd.
Summary:
Clangd's approach is to provide lots of completions, and let ranking sort them
out. This relies on various important signals (Quality.h), without which the
large completion lists are extremely spammy.

Even with a completion result exactly at the cursor, vscode looks backwards and
tries to match the presumed partial-identifier against filterText, and uses
the result to rank, with sortText only used as a tiebreak.
By prepending the partial-identifier to the filterText, we can force the match
to be perfect and so give sortText full control of the ranking.

Full sad story: https://github.com/microsoft/language-server-protocol/issues/898

It's possible to do this on the server side too of course, and switch it on
with an initialization option. But it's a little easier in the extension, it
will get the fix to users of old clangd versions, and other editors

Reviewers: hokein

Reviewed By: hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75623
2020-03-06 13:34:25 +01:00
Jonas Devlieghere 45e2c6d956 [clang-tools-extra/clang-tidy] Mark modernize-make-shared as offering fixes
The list incorrectly states that modernize-make-shared does not offer
fixes, which is incorrect. Just like modernize-make-unique it does.
2020-03-05 21:45:20 -08:00
Nathan James dcba401a39 Fix 45129: Incorrect generated configuration modernize-make-shared.IncludeStyle 2020-03-06 00:07:08 +00:00
Nathan Ridge a7c655f148 [clangd] Remove vsc-extension-quickstart.md from the vscode-clangd plugin
Summary:

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75292
2020-03-05 15:28:40 -05:00
Utkarsh Saxena e397a0a5c3 [clangd] Add instrumentation mode in clangd for metrics collection.
Summary:
This patch adds an instrumentation mode for clangd (enabled by
corresponding option in cc_opts).
If this mode is enabled then user can specify callbacks to run on the
final code completion result.

Moreover the CodeCompletion::Score will contain the detailed Quality and
Relevance signals used to compute the score when this mode is enabled.
These are required because we do not any place in which the final
candidates (scored and sorted) are available along with the above
signals. The signals are temporary structures in `addCandidate`.

The callback is needed as it gives access to many data structures that
are internal to CodeCompleteFlow and are available once Sema has run. Eg:
ScopeDistnace and FileDistance.

If this mode is disabled (as in default) then Score would just contain 2
shared pointers (null). Thus cost(memory/time) increase for the default
mode would be fairly cheap and insignificant.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75603
2020-03-05 12:39:15 +01:00
Sam McCall 5abfe646f5 [clangd] Fix test (it worked by coincidence before) 2020-03-05 10:11:55 +01:00
Sam McCall 2cd33e6fe6 [clangd] Track document versions, include them with diags, enhance logs
Summary:
This ties to an LSP feature (diagnostic versioning) but really a lot
of the value is in being able to log what's happening with file versions
and queues more descriptively and clearly.

As such it's fairly invasive, for a logging patch :-\

Key decisions:
 - at the LSP layer, we don't reqire the client to provide versions (LSP
   makes it mandatory but we never enforced it). If not provided,
   versions start at 0 and increment. DraftStore handles this.
 - don't propagate magically using contexts, but rather manually:
   addDocument -> ParseInputs -> (ParsedAST, Preamble, various callbacks)
   Context-propagation would hide the versions from ClangdServer, which
   would make producing good log messages hard
 - within ClangdServer, treat versions as opaque and unordered.
   std::string is a convenient type for this, and allows richer versions
   for embedders. They're "mandatory" but "null" is a reasonable default.

Subscribers: ilya-biryukov, javed.absar, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75582
2020-03-05 01:22:32 +01:00
Sam McCall e6d9b2cb92 [clangd] Remove unused+broken InvalidationError class. 2020-03-05 01:08:40 +01:00
Petr Hosek ea086d10ce Revert "[clang-doc] Improving Markdown Output"
This reverts commit 45499f3801, it's
still failing on Windows bots.
2020-03-04 16:00:22 -08:00
Sam McCall c627b120eb [clangd] Cancel certain operations if the file changes before we start.
Summary:
Otherwise they can force us to build lots of snapshots that we don't need.
Particularly, try to do this for operations that are frequently
generated by editors without explicit user interaction, and where
editing the file makes the result less useful. (Code action
enumeration is a good example).

https://github.com/clangd/clangd/issues/298

This doesn't return the "right" LSP error code (ContentModified) to the client,
we need to teach the cancellation API to distinguish between different causes.

Reviewers: kadircet

Subscribers: ilya-biryukov, javed.absar, MaskRay, jkorous, arphaman, jfb, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75602
2020-03-05 00:10:07 +01:00
Sam McCall 2be4569719 [clangd] Fix isInsideMainFile to be aware of preamble.
Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75460
2020-03-04 23:57:21 +01:00
Petr Hosek 45499f3801 [clang-doc] Improving Markdown Output
This change has two components. The moves the generated file
for a namespace to the directory named after the namespace in
a file named 'index.<format>'. This greatly improves the browsing
experience since the index page is shown by default for a directory.

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

Patch By: Clayton

Differential Revision: https://reviews.llvm.org/D72954
2020-03-04 14:42:07 -08:00
Kadir Cetinkaya 2128a79c46
[clangd] Fix buildbots 2020-03-04 12:41:26 +01:00
Kadir Cetinkaya a8706b22a6
[clangd] Fix windows buildbots 2020-03-04 12:07:23 +01:00
Kadir Cetinkaya ec7c8bae84
[clangd] Make use of syntax tokens in ReplayPreamble
Summary: Replace usage of RawLexer with syntax tokens inside ReplayPreamble.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74842
2020-03-04 11:01:35 +01:00
Kadir Cetinkaya e6b8181895
[clangd] Fix early selection for non-vardecl declarators
Summary:
Selection tree was performing an early claim only for VarDecls, but
there are other cases where we can have declarators, e.g. FieldDecls. This patch
extends the early claim logic to all types of declarators.

Fixes https://github.com/clangd/clangd/issues/292

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75106
2020-03-04 11:01:35 +01:00
Nathan Ridge e70a9f3850 [clangd] Handle go-to-definition in macro invocations where the target appears in the expansion multiple times
Fixes https://github.com/clangd/clangd/issues/234

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72041
2020-03-03 15:52:05 -05:00
Nathan James e40a742a50 [clang-tidy] Change checks to use new isLanguageVersionSupported restriction
Summary: Modifies all checks that are language version dependent to use `isLanguageVersionSupported`

Reviewers: jdoerfert, lebedev.ri, aaron.ballman, gribozavr2, Eugene.Zelenko

Reviewed By: gribozavr2

Subscribers: wuzish, nemanjai, xazax.hun, hiraditya, kbarton, steven_wu, dexonsmith, arphaman, lebedev.ri, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75340
2020-03-03 16:43:45 +00:00
Sam McCall caf5a4d57f [clangd] Propagate versions into DraftStore, assigning where missing. NFC
This prepares for propagating versions through the server so diagnostics
etc can be versioned.
2020-03-03 16:20:13 +01:00
Sam McCall c0b27c4891 [clangd] Remove unused getDocument() API 2020-03-03 14:53:59 +01:00
Kadir Cetinkaya 3755039c99
[clangd] Get rid of getTokenRange helper
Summary:

Reviewers: sammccall

Subscribers: mgorny, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75474
2020-03-03 14:30:42 +01:00
Kadir Cetinkaya 3302af83ef
[clangd] Make use of token buffers in semantic highlighting
Reviewers: hokein, sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75447
2020-03-03 14:30:41 +01:00
Sam McCall 6525a6b7b2 [clangd] Use structured PublishDiagnosticsParams. NFC 2020-03-03 12:44:40 +01:00
Sam McCall 6f7dca97fb [clangd] Send InitializeResult.serverInfo 2020-03-03 12:25:58 +01:00
serge-sans-paille 1454c27b60 Syndicate, test and fix base64 implementation
llvm/Support/Base64, fix its implementation and provide a decent test suite.

Previous implementation code was using + operator instead of | to combine

results, which is a problem when shifting signed values. (0xFF << 16) is
implicitly converted to a (signed) int, and thus results in 0xffff0000,
h is
negative. Combining negative numbers with a + in that context is not what we
want to do.

This is a recommit of 5a1958f267 with UB removved.

This fixes https://github.com/llvm/llvm-project/issues/149.

Differential Revision: https://reviews.llvm.org/D75057
2020-03-03 12:17:53 +01:00
Sam McCall 8a2d294ed0 [clangd] Handle `initialized` notification (no-op to suppress log message) 2020-03-03 12:12:30 +01:00
Nathan James b2666ccca0 [clangd] DefineOutline won't copy virtual specifiers on methods
Summary:
The define out of line refactor tool previously would copy the `virtual`, `override` and `final` specifier into the out of line method definition.
This results in malformed code as those specifiers aren't allowed outside the class definition.

Reviewers: hokein, kadircet

Reviewed By: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D75429
2020-03-03 09:59:14 +00:00
Sam McCall e7de00cf97 [clangd] Split locateSymbolAt into several component functions, to allow later reuse. NFC 2020-03-02 18:45:25 +01:00
Mitch Phillips 49684f9db5 Revert "Syndicate, test and fix base64 implementation"
This reverts commit 5a1958f267.

This change broke the UBSan build bots. See
https://reviews.llvm.org/D75057 for more information.
2020-03-02 09:33:22 -08:00
Haojian Wu 9ad1099224 [clangd] No need to query ctor refs in cross-file rename.
Summary:
This patch reverts 2c5ee78de1,
now kythe (https://github.com/kythe/kythe/issues/4381) supports returning ctors refs as part of class references, so
there is no need to query the ctor refs in the index (this would also
make the results worse, lots of duplications)

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75439
2020-03-02 15:21:32 +01:00
Kadir Cetinkaya 3ae2fc7a8b
[clangd] Get rid of lexer usage in locateMacroAt
Reviewers: sammccall, hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75331
2020-03-02 13:31:12 +01:00
Kadir Cetinkaya c24c89d6f0
[clangd] Get rid of unnecessary source transformations in locateMacroAt
Summary:
All callers are already passing spelling locations to locateMacroAt.
Also there's no point at looking at macro expansion for figuring out undefs as
it is forbidden to have PP directives inside macro bodies.
Also fixes a bug when the previous sourcelocation is unavailable.

Reviewers: sammccall, hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75259
2020-03-02 13:31:12 +01:00
Joe Turner 071002ffdb [clang-tidy] Copy the Ranges field from the Diagnostic when creating the ClangTidyError
Differential Revision: https://reviews.llvm.org/D68887
2020-03-02 12:39:16 +01:00
serge-sans-paille 5a1958f267 Syndicate, test and fix base64 implementation
Move Base64 implementation from clangd/SemanticHighlighting to
llvm/Support/Base64, fix its implementation and provide a decent test suite.

Previous implementation code was using + operator instead of | to combine some
results, which is a problem when shifting signed values. (0xFF << 16) is
implicitly converted to a (signed) int, and thus results in 0xffff0000, which is
negative. Combining negative numbers with a + in that context is not what we
want to do.

This fixes https://github.com/llvm/llvm-project/issues/149.

Differential Revision: https://reviews.llvm.org/D75057
2020-03-02 10:02:25 +01:00
Haojian Wu c443b610bf [clangd] Remove the deprecated clangdServer::rename API, NFC.
There is no actual user of it now.
2020-03-02 09:48:25 +01:00
Stefanos Baziotis 21390eab4c [ADT][NFC] SCCIterator: Change hasLoop() to hasCycle() 2020-03-01 19:17:21 +02:00
Karasev Nikita 365c99fd7d Skip TemplateSpecializedType in modernize-pass-by-value.
Existing 'modernize-pass-by-value' check works only with non template values in
initializers. Fixes PR37210.
2020-02-28 09:17:16 -05:00
Nathan James 39c4246e1e [clang-tidy] Added virtual isLanguageVersionSupported to ClangTidyCheck
Summary:
Motivated by [[ https://bugs.llvm.org/show_bug.cgi?id=45045 | Tune inspections to a specific C++ standard. ]]
Moves the isLanguageVersionSupported virtual function from `MakeSmartPtrCheck` to the base `ClangTidyCheck` class.
This will disable registering matchers or pp callbacks on unsupported language versions for a check.
Having it as a standalone function is cleaner than manually disabling the check in the register function and should hopefully
encourage check developers to actually restrict the check based on language version.
As an added bonus this could enable automatic detection of what language version a check runs on for the purpose of documentation generation

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

Reviewed By: gribozavr2

Subscribers: xazax.hun, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75289
2020-02-28 13:05:05 +00:00
Kadir Cetinkaya 48fad110e0
[clangd] Get rid of lexer usage in ObjCLocalizeStringLiteral tweak
Reviewers: hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75230
2020-02-28 09:38:26 +01:00
Kadir Cetinkaya 98bb094c1e
[clangd] Use tokenize instead of raw lexer in SourceCode/lex
Reviewers: hokein, sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75249
2020-02-28 09:38:26 +01:00
Reid Kleckner 86565c1309 Avoid SourceManager.h include in RawCommentList.h, add missing incs
SourceManager.h includes FileManager.h, which is expensive due to
dependencies on LLVM FS headers.

Remove dead BeforeThanCompare specialization.

Sink ASTContext::addComment to cpp file.

This reduces the time to compile a file that does nothing but include
ASTContext.h from ~3.4s to ~2.8s for me.

Saves these includes:
    219 -    ../clang/include/clang/Basic/SourceManager.h
    204 -    ../clang/include/clang/Basic/FileSystemOptions.h
    204 -    ../clang/include/clang/Basic/FileManager.h
    165 -    ../llvm/include/llvm/Support/VirtualFileSystem.h
    164 -    ../llvm/include/llvm/Support/SourceMgr.h
    164 -    ../llvm/include/llvm/Support/SMLoc.h
    161 -    ../llvm/include/llvm/Support/Path.h
    141 -    ../llvm/include/llvm/ADT/BitVector.h
    128 -    ../llvm/include/llvm/Support/MemoryBuffer.h
    124 -    ../llvm/include/llvm/Support/FileSystem.h
    124 -    ../llvm/include/llvm/Support/Chrono.h
    124 -    .../MSVCSTL/include/stack
    122 -    ../llvm/include/llvm-c/Types.h
    122 -    ../llvm/include/llvm/Support/NativeFormatting.h
    122 -    ../llvm/include/llvm/Support/FormatProviders.h
    122 -    ../llvm/include/llvm/Support/CBindingWrapping.h
    122 -    .../MSVCSTL/include/xtimec.h
    122 -    .../MSVCSTL/include/ratio
    122 -    .../MSVCSTL/include/chrono
    121 -    ../llvm/include/llvm/Support/FormatVariadicDetails.h
    118 -    ../llvm/include/llvm/Support/MD5.h
    109 -    .../MSVCSTL/include/deque
    105 -    ../llvm/include/llvm/Support/Host.h
    105 -    ../llvm/include/llvm/Support/Endian.h

Reviewed By: aaron.ballman, hans

Differential Revision: https://reviews.llvm.org/D75279
2020-02-27 13:49:40 -08:00
Joe Turner b26c88e3c6 [clang-tidy] Store all ranges in clang::tooling::Diagnostic
Summary: Instead of dropping all the ranges associated with a Diagnostic when
converting them to a ClangTidy error, instead attach them to the ClangTidyError,
so they can be consumed by other APIs.

Patch by Joe Turner <joturner@google.com>.
Differential Revision: https://reviews.llvm.org/D69782
2020-02-27 19:39:42 +01:00
Haojian Wu aa324c5441 [clangd][NFC] Don't query the index if the rename symbol is function
local.

This would save an unnecessary index query when renaming a function
local symbol in cross-file rename mode.
2020-02-27 15:04:51 +01:00
Kadir Cetinkaya f31fc1043d
[clangd] Get rid of lexer usage in AST.cpp
Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75193
2020-02-27 09:54:21 +01:00
Kadir Cetinkaya 2bb7774ddf
[clangd] Get rid of getBeginningOfIdentifier helper
Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75176
2020-02-27 09:34:45 +01:00
Kadir Cetinkaya 2011d14296
[clangd] Clean-up XRefs.cpp from Lexer usages and unnecessary SourceLoc transformations
Summary:
Get rid of calls to lexer and unnecessary source location
transformations.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75166
2020-02-26 17:51:27 +01:00
Haojian Wu 02323a3d5f [clangd] use printQualifiedName to skip the inlinenamespace qualifiers.
Summary:
symbols in libcpp are inside the inline namespace, printQualifierAsString will
print the inline namespace, which is unexpected.

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75174
2020-02-26 16:22:45 +01:00
Haojian Wu 5560a78820 [clangd] Bump index version number.
Summary:
Though we don't have new changes to the index format, we have changes to
symbol collector, e.g. collect marcos, spelled references. Bump the
version to force background-index to rebuild.

Reviewers: kadircet

Reviewed By: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74127
2020-02-26 13:43:16 +01:00
Haojian Wu 4feca71df0 Fix the clangd-fuzzer build error. 2020-02-26 10:13:13 +01:00
Haojian Wu 34d0e1bd6d [clangd] Expose the rename LimitFiles option to the C++ API, NFC.
Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74834
2020-02-26 09:33:58 +01:00
Haojian Wu e6d0bad843 [clang-rename] Add the USR of incomplete decl to the USRSet.
Summary:
This fixes a clangd rename issue, which is missing the reference of
an incomplete specialization.

Unfortunately, I didn't reproduce this issue in clang-rename, I guess
the input `FoundDecl` of AdditionalUSRFinder is different in clangd vs
clang-rename, clang-rename uses the underlying CXXRecordDecl of the
ClassTemplateDecl, which is fixed in 5d862c042b;
while clangd-rename uses the ClassTemplateDecl.

Reviewers: kbobyrev

Reviewed By: kbobyrev

Subscribers: ilya-biryukov, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74829
2020-02-25 16:56:35 +01:00
Kadir Cetinkaya e09754ccef
[clangd] Migrate Lexer usages in TypeHierarchy to TokenBuffers
Summary:
Also fixes a bug, resulting from directly using ND.getEndLoc() for end
location of the range. As ND.getEndLoc() points to the begining of the last
token, whereas it should point one past the end, since LSP ranges are half open
(exclusive on the end).

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74850
2020-02-25 15:36:45 +01:00
Kadir Cetinkaya 555d5ad85a
[clangd] Disable ExtractVariable for C
Summary:
Currently extract variable doesn't spell the type explicitly and just
uses an `auto` instead, which is not available in C.

Reviewers: usaxena95

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D75053
2020-02-25 12:15:15 +01:00
Shoaib Meenai e34ddc09f4 [arcconfig] Delete subproject arcconfigs
From https://secure.phabricator.com/book/phabricator/article/arcanist_new_project/:

> An .arcconfig file is a JSON file which you check into your project's root.

I've done some experimentation, and it looks like the subproject
.arcconfigs just get ignored, as the documentation says. Given that
we're fully on the monorepo now, it's safe to remove them.

Differential Revision: https://reviews.llvm.org/D74996
2020-02-24 16:20:36 -08:00
Sam McCall e9997cfb4d [clangd] Try to fix buildbots - copy elision not happening here? 2020-02-23 21:12:26 +01:00
Sam McCall be6d07c920 [clangd] Reapply b60896fad9 Fall back to selecting token-before-cursor if token-after-cursor fails.
This reverts commit b4b9706d5d.
Now avoiding expected<vector<selection>> in favor of expected<vector<unique_ptr<selection>>>
2020-02-23 20:17:30 +01:00
Sam McCall b4b9706d5d Revert "[clangd] Reapply b60896fad9 Fall back to selecting token-before-cursor if token-after-cursor fails."
This reverts commit a2ce807eb7.

Buildbot failures on GCC due to SelectionTree not being copyable, and
instantiating vector<Selection> in the tweak-handling in ClangdServer.
2020-02-23 16:34:49 +01:00
Sam McCall a2ce807eb7 [clangd] Reapply b60896fad9 Fall back to selecting token-before-cursor if token-after-cursor fails.
This reverts commit 6af1ad20d6.
2020-02-23 16:17:46 +01:00
Sam McCall 7d3f8b1e2d [clangd] Debounce rebuilds responsively to rebuild times.
Summary:
Old: 500ms always. New: rebuild time, up to 500ms.

Fixes https://github.com/clangd/clangd/issues/275

Reviewers: hokein

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73949
2020-02-23 15:34:28 +01:00
Haojian Wu bc498198b5 [clangd] Allow renaming class templates in cross-file rename.
Summary:
It was disabled because we don't handle explicit template
specialization well (due to the index limitation).

renaming templates is normal in practic, rather than disabling it, this patch
allows to rename them though it is not perfect (just a known limitation).

Context: https://github.com/clangd/clangd/issues/280

Reviewers: kbobyrev

Reviewed By: kbobyrev

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74709
2020-02-21 09:57:10 +01:00
Haojian Wu e326f52430 [clangd] Fix the incomplete template specialization in findTarget.
Summary:
FindTarget doesn't report the TemplatePattern for incomplete
specialization.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74900
2020-02-21 09:42:02 +01:00
Eugene Zelenko db8911aad7 [clang-tidy] rename_check.py: maintain alphabetical order in Renamed checks section
Summary:
Also use //check// in add_new_check.py for terminology consistency.

PS

My GitHub ID is [[ https://github.com/EugeneZelenko | EugeneZelenko ]], if it's necessary for attribution.

Reviewers: alexfh, hokein, aaron.ballman, njames93, MyDeveloperDay

Reviewed By: njames93

Subscribers: Andi, xazax.hun, cfe-commits

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D73580
2020-02-20 17:31:08 +00:00
Haojian Wu bb9e92bad5 [clang][Index] Fix the incomplete instantiations in libindex.
Summary:
libindex will canonicalize references to template instantiations:
- 1) reference to an explicit template specialization, report the specializatiion
- 2) otherwise, report the primary template

but 2) is not true for incomplete instantiations, this patch fixes this.

Fixes https://github.com/clangd/clangd/issues/287

Reviewers: kadircet

Subscribers: ilya-biryukov, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74830
2020-02-20 14:42:30 +01:00
Roman Lebedev c8f9e526bc
[clang-tidy] misc-no-recursion: point to the function defs, not decls
Results in slightly better UX.
This actually was the initial intent, but it kinda got lost along the way.
2020-02-20 14:17:30 +03:00
Douglas Yung 6730f390a1 Fixup test after changes made in 709fd989.
The change added a test that required exceptions, so enable that explicitly
so that it works on platforms that default to having exceptions disabled
(like the PS4).
2020-02-19 18:39:54 -08:00
Nathan James d1d5180e69 [NFC] Fix issues with clang-tidy checks list.rst
Added FixItHint comments to ReservedIdentifierCheck and IdentifierNamingCheck to trick the python scripts into detecting a fix it is provided as it can't see the FixItHints in RenamerClangTidyCheck.cpp
2020-02-19 23:19:09 +00:00
Alexander Lanin 709fd989b6 [clang-tidy] fix readability-redundant-member-init auto-fix of Function-try-block
Summary: This fixes https://bugs.llvm.org/show_bug.cgi?id=39310

Reviewers: malcolm.parsons, ioeric

Reviewed By: malcolm.parsons

Subscribers: xazax.hun

Tags: #clang-format, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D74800
2020-02-19 23:04:05 +00:00
Balázs Kéri fa6aef4427 [clang-tidy] Added a case to UnconventionalAssignOperatorCheck.
Summary:
The check accepts now a `return (*this = something);` as return
statement too (beneath of `*this`).

Reviewers: alexfh, hokein, aaron.ballman, JonasToth

Reviewed By: aaron.ballman

Subscribers: xazax.hun, dkrupp, Szelethus, gamesh411, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D74529
2020-02-19 10:07:34 +01:00
Kirill Bobyrev 4921e79192 Fix build after D74606 2020-02-19 09:19:15 +01:00
Kirill Bobyrev 2a095ff6f5
[clangd] Add add commit characters to the server capabilities
Summary:
Make it more convinient for the clients to select completion items by
providing a set of default characters (punctuation).

Related issue: https://github.com/clangd/clangd/issues/284

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74606
2020-02-19 08:32:00 +01:00
Eric Christopher 28728bf06f Fix a signed/unsigned warning promoted to error. 2020-02-18 17:49:22 -08:00
Karasev Nikita 47282b1b4b Fix PR#44620 'readability-redundant-string-cstr quick-fix causes invalid code'
static void f2(std::string&&) {}
static void f() {
	std::string const s;
	f2(s.c_str()); // readability-redundant-string-cstr previously warning
}

Skips the problematic AST pattern in the matcher.
2020-02-18 15:33:52 -05:00
Alexey Romanov 5e7d0ebf73 Cover cases like (b && c && b) in the redundant expression check.
readability-redundant-expression now detects expressions where a logical
or bitwise operator had equivalent LHS and RHS where the equivalent
operands were separated by more operands.
2020-02-18 11:42:32 -05:00
Gokturk Yuksek 351ed50dcb Reland "[clang-tools-extra] fix the check for if '-latomic' is necessary""
The buildbot failures on MSVC should have been fixed by f128f442a3.
2020-02-17 16:53:29 +00:00
Haojian Wu af8b0cd58d [clang][Index] Visit the default parameter arguements in libindex.
Summary:
We are missing the default parmeter arguments when IndexFunctionLocals
is true.

Fixes https://github.com/clangd/clangd/issues/285.

Reviewers: kadircet

Subscribers: kristof.beyls, ilya-biryukov, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74610
2020-02-17 16:45:04 +01:00
Benjamin Kramer 5fc5c7db38 Strength reduce vectors into arrays. NFCI. 2020-02-17 15:37:35 +01:00
Johannes Doerfert 803ad3137b [FIX] Repair clang-tidy check after D72304 2020-02-15 01:15:45 -06:00
Alexandre Ganea 8404aeb56a [Support] On Windows, ensure hardware_concurrency() extends to all CPU sockets and all NUMA groups
The goal of this patch is to maximize CPU utilization on multi-socket or high core count systems, so that parallel computations such as LLD/ThinLTO can use all hardware threads in the system. Before this patch, on Windows, a maximum of 64 hardware threads could be used at most, in some cases dispatched only on one CPU socket.

== Background ==
Windows doesn't have a flat cpu_set_t like Linux. Instead, it projects hardware CPUs (or NUMA nodes) to applications through a concept of "processor groups". A "processor" is the smallest unit of execution on a CPU, that is, an hyper-thread if SMT is active; a core otherwise. There's a limit of 32-bit processors on older 32-bit versions of Windows, which later was raised to 64-processors with 64-bit versions of Windows. This limit comes from the affinity mask, which historically is represented by the sizeof(void*). Consequently, the concept of "processor groups" was introduced for dealing with systems with more than 64 hyper-threads.

By default, the Windows OS assigns only one "processor group" to each starting application, in a round-robin manner. If the application wants to use more processors, it needs to programmatically enable it, by assigning threads to other "processor groups". This also means that affinity cannot cross "processor group" boundaries; one can only specify a "preferred" group on start-up, but the application is free to allocate more groups if it wants to.

This creates a peculiar situation, where newer CPUs like the AMD EPYC 7702P (64-cores, 128-hyperthreads) are projected by the OS as two (2) "processor groups". This means that by default, an application can only use half of the cores. This situation could only get worse in the years to come, as dies with more cores will appear on the market.

== The problem ==
The heavyweight_hardware_concurrency() API was introduced so that only *one hardware thread per core* was used. Once that API returns, that original intention is lost, only the number of threads is retained. Consider a situation, on Windows, where the system has 2 CPU sockets, 18 cores each, each core having 2 hyper-threads, for a total of 72 hyper-threads. Both heavyweight_hardware_concurrency() and hardware_concurrency() currently return 36, because on Windows they are simply wrappers over std:🧵:hardware_concurrency() -- which can only return processors from the current "processor group".

== The changes in this patch ==
To solve this situation, we capture (and retain) the initial intention until the point of usage, through a new ThreadPoolStrategy class. The number of threads to use is deferred as late as possible, until the moment where the std::threads are created (ThreadPool in the case of ThinLTO).

When using hardware_concurrency(), setting ThreadCount to 0 now means to use all the possible hardware CPU (SMT) threads. Providing a ThreadCount above to the maximum number of threads will have no effect, the maximum will be used instead.
The heavyweight_hardware_concurrency() is similar to hardware_concurrency(), except that only one thread per hardware *core* will be used.

When LLVM_ENABLE_THREADS is OFF, the threading APIs will always return 1, to ensure any caller loops will be exercised at least once.

Differential Revision: https://reviews.llvm.org/D71775
2020-02-14 10:24:22 -05:00
Luís Marques 13700c383f Revert "[clang-tools-extra] fix the check for if '-latomic' is necessary"
This reverts commit 1d40c41506.
This seemed to have caused build failures on ARM/AArch64.
2020-02-14 15:01:52 +00:00
Haojian Wu 5dc2314d5e [clangd] Update the CompletionItemKind.
Summary: Fix some FIXMEs.

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74609
2020-02-14 15:48:30 +01:00
Haojian Wu 74c97ca1b4 [clangd] Add tracer to the rename workflow, NFC
Reviewers: kbobyrev

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74395
2020-02-14 15:39:29 +01:00
Gokturk Yuksek 1d40c41506 [clang-tools-extra] fix the check for if '-latomic' is necessary
Summary:
The CheckAtomic module performs two tests to determine if passing
'-latomic' to the linker is required: one for 64-bit atomics, and
another for non-64-bit atomics. clangd only uses the result from
HAVE_CXX_ATOMICS64_WITHOUT_LIB. This is incomplete because there are
uses of non-64-bit atomics in the code, such as the ReplyOnce::Replied
of type std::atomic<bool> defined in clangd/ClangdLSPServer.cpp.

Fix by also checking for the result of HAVE_CXX_ATOMICS_WITHOUT_LIB.

See also: https://reviews.llvm.org/D68964

Reviewers: ilya-biryukov, nridge, kadircet, beanz, compnerd, luismarques
Reviewed By: luismarques
Tags: #clang
Differential Revision: https://reviews.llvm.org/D69869
2020-02-14 14:16:10 +00:00
Kadir Cetinkaya 84240e0db8
[clang][Index] Introduce a TemplateParm SymbolKind
Summary:
Currently template parameters has symbolkind `Unknown`. This patch
introduces a new kind `TemplateParm` for templatetemplate, templatetype and
nontypetemplate parameters.

Also adds tests in clangd hover feature.

Reviewers: sammccall

Subscribers: kristof.beyls, ilya-biryukov, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73696
2020-02-14 13:20:34 +01:00
Kadir Cetinkaya c45fb35b5e
[clang][DeclPrinter] Implement visitors for {TemplateType,NonTypeTemplate}Parms
Reviewers: sammccall, hokein

Subscribers: kristof.beyls, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73693
2020-02-14 13:20:34 +01:00
Roman Lebedev b7d6640ba9
[NFC][clang-tidy] Move recently newly-added tests into checkers/ subdir
That's where nowadays those tests reside, those outliers were created
before the migration but committed after,
so they just awkwardly reside in the old place.
2020-02-14 11:25:05 +03:00
Roman Lebedev 49bffa5f8b
[clang-tidy] misc-no-recursion: a new check
Summary:
Recursion is a powerful tool, but like any tool
without care it can be dangerous. For example,
if the recursion is unbounded, you will
eventually run out of stack and crash.

You can of course track the recursion depth
but if it is hardcoded, there can always be some
other environment when that depth is too large,
so said magic number would need to be env-dependent.
But then your program's behavior is suddenly more env-dependent.

Also, recursion, while it does not outright stop optimization,
recursive calls are less great than normal calls,
for example they hinder inlining.

Recursion is banned in some coding guidelines:
* SEI CERT DCL56-CPP. Avoid cycles during initialization of static objects
* JPL 2.4 Do not use direct or indirect recursion.
* I'd say it is frowned upon in LLVM, although not banned
And is plain unsupported in some cases:
* OpenCL 1.2, 6.9 Restrictions: i. Recursion is not supported.

So there's clearly a lot of reasons why one might want to
avoid recursion, and replace it with worklist handling.
It would be great to have a enforcement for it though.

This implements such a check.
Here we detect both direct and indirect recursive calls,
although since clang-tidy (unlike clang static analyzer)
is CTU-unaware, if the recursion transcends a single standalone TU,
we will naturally not find it :/

The algorithm is pretty straight-forward:
1. Build call-graph for the entire TU.
   For that, the existing `clang::CallGraph` is re-used,
   although it had to be modified to also track the location of the call.
2. Then, the hard problem: how do we detect recursion?
   Since we have a graph, let's just do the sane thing,
   and look for Strongly Connected Function Declarations - widely known as `SCC`.
   For that LLVM provides `llvm::scc_iterator`,
   which is internally an Tarjan's DFS algorithm, and is used throught LLVM,
   so this should be as performant as possible.
3. Now that we've got SCC's, we discard those that don't contain loops.
   Note that there may be more than one loop in SCC!
4. For each loopy SCC, we call out each function, and print a single example
   call graph that shows recursion -- it didn't seem worthwhile enumerating
   every possible loop in SCC, although i suppose it could be implemented.
   * To come up with that call graph cycle example, we start at first SCC node,
     see which callee of the node is within SCC (and is thus known to be in cycle),
     and recurse into it until we hit the callee that is already in call stack.

Reviewers: JonasToth, aaron.ballman, ffrankies, Eugene.Zelenko, erichkeane, NoQ

Reviewed By: aaron.ballman

Subscribers: Charusso, Naghasan, bader, riccibruno, mgorny, Anastasia, xazax.hun, cfe-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D72362
2020-02-13 23:37:53 +03:00
Roman Lebedev d68c7b8e3e
[clang][Analysis] CallGraph: store the actual call `Expr*` in the CallGraphNode::CallRecord
Summary:
Storing not just the callee, but the actual call may be interesting for some use-cases.
In particular, D72362 would like that to better pretty-print the cycles in call graph.

Reviewers: NoQ, erichkeane

Reviewed By: NoQ

Subscribers: martong, Charusso, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74081
2020-02-13 23:37:53 +03:00
Nathan James 8c4cf23dee Fix crash in InfinteLoopCheck 2020-02-13 20:20:37 +00:00
Alexandre Ganea 47abb43fc3 [clang-tidy] Fix performance-noexcept-move-constructor-fix test on non-English locale
When running on Windows under the following locale:

D:\llvm-project>python
Python 3.8.0 (tags/v3.8.0:fa919fd, Oct 14 2019, 19:37:50) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import locale
>>> locale.getlocale()
('French_Canada', '1252')

This patch fixes the following issue:

# command stderr:
Traceback (most recent call last):
  File "D:/llvm-project/clang-tools-extra/test/../test\clang-tidy\check_clang_tidy.py", line 249, in <module>
    main()
  File "D:/llvm-project/clang-tools-extra/test/../test\clang-tidy\check_clang_tidy.py", line 245, in main
    run_test_once(args, extra_args)
  File "D:/llvm-project/clang-tools-extra/test/../test\clang-tidy\check_clang_tidy.py", line 162, in run_test_once
    diff_output.decode() +
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe0 in position 2050: invalid continuation byte
This is caused by diff reporting no EOL on the last line, and unfortunately this is written in French with accentuation on my locale.

Differential Revision: https://reviews.llvm.org/D74498
2020-02-13 14:46:44 -05:00
Yuanfang Chen 4ad7685258 Revert "Revert "Reland "[Support] make report_fatal_error `abort` instead of `exit`"""
This reverts commit 80a34ae311 with fixes.

Previously, since bots turning on EXPENSIVE_CHECKS are essentially turning on
MachineVerifierPass by default on X86 and the fact that
inline-asm-avx-v-constraint-32bit.ll and inline-asm-avx512vl-v-constraint-32bit.ll
are not expected to generate functioning machine code, this would go
down to `report_fatal_error` in MachineVerifierPass. Here passing
`-verify-machineinstrs=0` to make the intent explicit.
2020-02-13 10:16:06 -08:00
Yuanfang Chen 17122ec10a Revert "Revert "Revert "Reland "[Support] make report_fatal_error `abort` instead of `exit`""""
This reverts commit bb51d24330.
2020-02-13 10:08:05 -08:00
Yuanfang Chen bb51d24330 Revert "Revert "Reland "[Support] make report_fatal_error `abort` instead of `exit`"""
This reverts commit 80a34ae311 with fixes.

On bots llvm-clang-x86_64-expensive-checks-ubuntu and
llvm-clang-x86_64-expensive-checks-debian only,
llc returns 0 for these two tests unexpectedly. I tweaked the RUN line a little
bit in the hope that LIT is the culprit since this change is not in the
codepath these tests are testing.
llvm\test\CodeGen\X86\inline-asm-avx-v-constraint-32bit.ll
llvm\test\CodeGen\X86\inline-asm-avx512vl-v-constraint-32bit.ll
2020-02-13 10:02:53 -08:00
Kirill Bobyrev ff7b5bac04
[clangd] Expose Code Completion score to the client
Summary:
Make it possible for the client to adjust the ranking by using the score Clangd
calculates for the completion items.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74547
2020-02-13 15:05:18 +01:00
Haojian Wu b1309a18ba [clangd] Print the Spelled RefKind. 2020-02-13 13:28:11 +01:00
Haojian Wu 9f63255a74 Fix the mac buildbot failure. 2020-02-13 12:39:55 +01:00
Haojian Wu 2c5ee78de1 [clangd] Query constructors in the index during rename.
Summary:
Though this is not needed when using clangd's own index, other indexes
(e.g. kythe) need it, as classes and their constructors are different
symbols, otherwise we will miss renaming constructors.

Reviewers: kbobyrev

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74411
2020-02-13 10:10:12 +01:00
Haojian Wu a45ca670f5 [clang-tidy] No misc-definitions-in-headers warning on C++14 variable templates.
Reviewers: gribozavr2

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74468
2020-02-12 16:56:31 +01:00
Yuanfang Chen 80a34ae311 Revert "Reland "[Support] make report_fatal_error `abort` instead of `exit`""
This reverts commit rGcd5b308b828e, rGcd5b308b828e, rG8cedf0e2994c.

There are issues to be investigated for polly bots and bots turning on
EXPENSIVE_CHECKS.
2020-02-11 20:41:53 -08:00
Yuanfang Chen 8cedf0e299 Reland "[Support] make report_fatal_error `abort` instead of `exit`"
Summary:
Reland D67847 after D73742 is committed. Replace `sys::Process::Exit(1)`
with `abort` in `report_fatal_error`.

After this patch, for tools turning on `CrashRecoveryContext`,
crash handler installed by `CrashRecoveryContext` is called unless
they installed a non-returning handler using `llvm::install_fatal_error_handler`
like `cc1_main` currently does.

Reviewers: rnk, MaskRay, aganea, hans, espindola, jhenderson

Subscribers: jholewinski, qcolombet, dschuff, jyknight, emaste, sdardis, nemanjai, jvesely, nhaehnle, sbc100, jgravelle-google, hiraditya, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, steven_wu, rogfer01, MartinMosbeck, brucehoult, the_o, dexonsmith, PkmX, rupprecht, jocewei, jsji, Jim, dmgreen, lenary, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, kerbowa, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D74456
2020-02-11 18:20:40 -08:00
Justin Lebar 1bd6123b78 Use std::foo_t rather than std::foo in LLVM.
Summary: C++14 migration. No functional change.

Reviewers: bkramer, JDevlieghere, lebedev.ri

Subscribers: MatzeB, hiraditya, jkorous, dexonsmith, arphaman, kadircet, lebedev.ri, usaxena95, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D74384
2020-02-11 15:12:51 -08:00
Nathan James c69ec64768 [clang-tidy] Added check to disable bugprone-infinite-loop on known false condition
Summary: Addresses [[ https://bugs.llvm.org/show_bug.cgi?id=44816 | bugprone-infinite-loop false positive with CATCH2 ]] by disabling the check on loops where the condition is known to always eval as false, in other words not a loop.

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

Reviewed By: gribozavr2

Subscribers: xazax.hun, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D74374
2020-02-11 19:37:11 +00:00
Sam McCall d4df372559 [clangd] Expose completion range in code completion results (C++ API)
Summary:
Informative only, useful for positioning UI, interacting with other sources of
completion etc. As requested by an embedder of clangd.

Reviewers: usaxena95

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74305
2020-02-11 15:25:03 +01:00
Haojian Wu a7fd548a4f [clang-rename] Fix the missing template constructors.
Summary:
When renaming a class with template constructors, we are missing the
occurrences of the template constructors, because getUSRsForDeclaration doesn't
give USRs of the templated constructors (they are not in the normal `ctors()`
method).

Reviewers: kbobyrev

Subscribers: jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74216
2020-02-11 09:41:39 +01:00
Haojian Wu 487621237d [clangd] Remove a FIXME which has been done, NFC. 2020-02-11 09:27:00 +01:00
Nathan James 784d441745 Fix Sphinx failure on ReadabilityQualifiedAuto docs 2020-02-11 02:03:37 +00:00
Jan Korous efcf643000 Reland "[clangd][test] Disable a particular testcase in FindExplicitReferencesTest when LLVM_ENABLE_EXPENSIVE_CHECKS""
The test got re-enabled after d54d71b67e landed.

However it seems that the order is still not deterministic as it
currently passes with -DLLVM_ENABLE_EXPENSIVE_CHECKS=OFF but randomly
fails with expensive checks ON.
2020-02-10 12:17:02 -08:00
David Goldman 6ff0228c6d [clang] Add `forceReload` clangd extension to 'textDocument/didChange'
Summary:
- This option forces a preamble rebuild to handle the odd case
  of a missing header file being added

Reviewers: sammccall

Subscribers: ilya-biryukov, javed.absar, MaskRay, jkorous, arphaman, jfb, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73916
2020-02-10 14:02:02 -05:00
Michael Wyman 0151ddc2e8 Create a clang-tidy check to warn when -dealloc is implemented inside an ObjC class category.
Summary: Such implementations may override the class's own implementation, and even be a danger in case someone later comes and adds one to the class itself. Most times this has been encountered have been a mistake.

Reviewers: stephanemoore, benhamilton, dmaclach

Reviewed By: stephanemoore, benhamilton, dmaclach

Subscribers: dmaclach, mgorny, cfe-commits

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D72876
2020-02-10 08:56:28 -07:00
Kirill Bobyrev 9f6d8de28a
[clangd] Support renaming designated initializers
Summary:
Clangd does not find references of designated iniitializers yet and, as a
result, is unable to rename such references. This patch addresses this issue.

Resolves: https://github.com/clangd/clangd/issues/247

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: merge_guards_bot, ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72867
2020-02-10 11:53:17 +01:00
Petr Hosek 7b627bb6e0 Revert "[clang-doc] Improving Markdown Output"
This reverts commit dac21fdd59 as this
is failing on Windows.
2020-02-07 19:43:47 -08:00
Petr Hosek dac21fdd59 [clang-doc] Improving Markdown Output
This change has two components. The moves the generated file
for a namespace to the directory named after the namespace in
a file named 'index.<format>'. This greatly improves the browsing
experience since the index page is shown by default for a directory.

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

Patch By: Clayton

Differential Revision: https://reviews.llvm.org/D72954
2020-02-07 19:17:03 -08:00
Richard Smith da3dc0011e PR44684: Look through parens and similar constructs when determining
whether a call is to a builtin.

We already had a general mechanism to do this but for some reason
weren't using it. In passing, check for the other unary operators that
can intervene in a reasonably-direct function call (we already handled
'&' but missed '*' and '+').

This reverts commit aaae6b1b61,
reinstating af80b8ccc5, with a fix to
clang-tidy.
2020-02-06 12:21:54 -08:00
Haojian Wu ca9fd22adb [clangd] Set "spelled" flag for constructor references.
Summary:
DeclarationName for cxx constructor is special, it is not an identifier.
thus the "Spelled" flag are not set for all ctor references, this patch
fixes it.

Reviewers: kbobyrev

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74125
2020-02-06 16:59:45 +01:00
Haojian Wu d6da8a1d94 [clangd] don't rename on protobuf symbols.
Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74036
2020-02-06 15:40:14 +01:00
Kirill Bobyrev d5e6e0a58b
Fix build after D74112 2020-02-06 11:41:17 +01:00
Kirill Bobyrev 10540e480d [clangd] Filter out implicit references while renaming
This patch is based on D72746 and prevents non-spelled references from
being renamed which would cause incorrect behavior otherwise.

Reviewed by: hokein

Differential Revision: https://reviews.llvm.org/D74112
2020-02-06 11:28:23 +01:00
Kirill Bobyrev a6860c1af4
[clangd] Add a flag for spelled references in the Index
This patch allows the index does to provide a way to distinguish
implicit references (e.g. coming from macro expansions) from the spelled
ones. The corresponding flag was added to RefKind and symbols that are
referenced without spelling their name explicitly are now marked
implicit. This allows fixing incorrect behavior when renaming a symbol
that was referenced in macro expansions would try to rename macro
invocations.

Differential Revision: D72746

Reviewed by: hokein
2020-02-06 08:18:14 +01:00
Haojian Wu eaf0c89ec5 [clangd] Add the missing elaborated types in FindTarget.
Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D74025
2020-02-05 14:03:36 +01:00
Haojian Wu f8865c0194 [clangd] Pull out a isProtoFile function.
Reviewers: kadircet

Reviewed By: kadircet

Subscribers: merge_guards_bot, mgorny, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73780
2020-02-05 12:04:03 +01:00
Kadir Cetinkaya ca1c21d4b6
[clangd] Use printf instead of `echo -e` to be compliant with dash 2020-02-05 10:21:32 +01:00
Kadir Cetinkaya 6e8d6bc9ec
[clangd] Preserve -nostdinc and --sysroot when calling query driver
Solves this issue: https://github.com/clangd/clangd/issues/157

This is my first contribution to an llvm project, so I hope I'm doing it right!

Patch by @topisani (Tobias Pisani)!

Reviewers: kadircet, klimek

Differential Revision: https://reviews.llvm.org/D73811
2020-02-05 09:58:06 +01:00
Simon Pilgrim 17785cc7a1 [clang-tidy] Fix "expression is redundant [misc-redundant-expression]" warning. NFCI. (PR44768)
We only accept tok::TokenKind::comment enum values so no need to add other cases. Seems to be a cut+paste typo.
2020-02-04 21:36:50 +00:00
Sam McCall 2629035a00 [clangd] Don't assert when completing a lambda variable inside the lambda.
Summary:
This is a fairly ugly hack - we back off several features for any variable
whose type isn't deduced, to avoid computing/caching linkage.
Better suggestions welcome.

Fixes https://github.com/clangd/clangd/issues/274

Reviewers: kadircet, kbobyrev

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73960
2020-02-04 17:24:26 +01:00
Sam McCall 2f4c4d0a78 Reland "[clangd] Mechanism to make update debounce responsive to rebuild speed."
This reverts commit ed98994f64.
Removed the accidental double-mutex-unlock.
2020-02-04 17:17:53 +01:00
Sam McCall ed98994f64 Revert "[clangd] Mechanism to make update debounce responsive to rebuild speed."
This reverts commit 92570718a8.
Breaking tests: http://45.33.8.238/linux/9296/step_9.txt
2020-02-04 15:34:10 +01:00
Sam McCall 69a39dc1f0 [clangd] Increase stack size of the new threads on macOS
Summary: By default it's 512K, which is way to small for clang parser to run on. There is no way to do it via platform-independent API, so it's implemented via pthreads directly in clangd/Threading.cpp.

Fixes https://github.com/clangd/clangd/issues/273

Patch by Dmitry Kozhevnikov!

Reviewers: ilya-biryukov, sammccall, arphaman

Reviewed By: ilya-biryukov, sammccall, arphaman

Subscribers: dexonsmith, umanwizard, jfb, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D50993
2020-02-04 15:21:27 +01:00
Sam McCall 92570718a8 [clangd] Mechanism to make update debounce responsive to rebuild speed.
Summary:
Currently we delay AST rebuilds by 500ms after each edit, to wait for
further edits. This is a win if a rebuild takes 5s, and a loss if it
takes 50ms.

This patch sets debouncepolicy = clamp(min, ratio * rebuild_time, max).
However it sets min = max = 500ms so there's no policy change or actual
customizability - will do that in a separate patch.

See https://github.com/clangd/clangd/issues/275

Reviewers: hokein

Subscribers: ilya-biryukov, javed.absar, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73873
2020-02-04 12:28:20 +01:00
Petr Hosek 80e63c17c0 Revert "[clang-doc] Improving Markdown Output"
This reverts commit 0fbaf3a7c2 as tests
are failing on some bots.
2020-02-03 12:27:09 -08:00
Petr Hosek 0fbaf3a7c2 [clang-doc] Improving Markdown Output
This change has two components. The moves the generated file
for a namespace to the directory named after the namespace in
a file named 'index.<format>'. This greatly improves the browsing
experience since the index page is shown by default for a directory.

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

Patch By: Clayton

Differential Revision: https://reviews.llvm.org/D72954
2020-02-03 12:14:17 -08:00
Haojian Wu 7d4c23b349 [clang-tidy] Fix a false positive about C++17 deduced class template types in unused-using-decl check.
Reviewers: gribozavr2

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73876
2020-02-03 16:25:10 +01:00
Karasev Nikita 6423ae417e Allow modernize-use-using to apply to enumerations as well.
This addresses PR44528.
2020-02-03 07:54:38 -05:00
Sam McCall 6b15a3d722 [clangd] TUScheduler::run() (i.e. workspace/symbol) counts towards concurrent threads
This seems to just be an oversight.
2020-02-03 11:32:33 +01:00
Sam McCall b79cb54712 [clangd] Refactor TUScheduler options into a struct. NFC 2020-02-03 11:20:48 +01:00
Nathan James d24d8af320 Fixed typo in CTE release notes failing build 2020-02-02 21:51:34 +00:00
Nathan James 8a68c40a1b [clang-tidy] Added option for disabling const qualifiers in readability-qualified-auto
Summary: Adds an option called `AddConstToQualified` to readability-qualified-auto to toggle adding const to the auto typed pointers and references. By default its enabled but in the LLVM module its disabled.

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

Reviewed By: aaron.ballman

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

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D73548
2020-02-02 21:27:25 +00:00
Nathan James efcd09cea9 [clang-tidy] Fix false positive for cppcoreguidelines-init-variables
Summary: Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=44746 | False positive for cppcoreguidelines-init-variables in range based for loop in template function ]]

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

Reviewed By: aaron.ballman

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

Tags: #clang, #clang-tools-extra

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

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

Reviewed By: alexfh

Subscribers: merge_guards_bot, xazax.hun, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D73841
2020-02-02 14:04:46 +00:00
Petr Hosek c0f475f2e3 Revert "[clang-doc] Improving Markdown Output"
This reverts commit deae8ee691 as it
broke the build on several bots.
2020-01-31 14:30:42 -08:00
Petr Hosek deae8ee691 [clang-doc] Improving Markdown Output
This change has two components. The moves the generated file
for a namespace to the directory named after the namespace in
a file named 'index.<format>'. This greatly improves the browsing
experience since the index page is shown by default for a directory.

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

Patch By: Clayton

Differential Revision: https://reviews.llvm.org/D72954
2020-01-31 14:21:21 -08:00
Kadir Cetinkaya 9c903d0373
[clangd][Hover] Handle uninstantiated default args
Summary:
Default args might exist but be unparsed or uninstantiated.
getDefaultArg asserts on those. This patch makes sure we don't crash in such
scenarios.

Reviewers: sammccall, ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73723
2020-01-31 15:03:33 +01:00
Nathan James 3ae11b4281 [NFC] small refactor on RenamerClangTidyCheck.cpp 2020-01-30 17:32:06 +00:00
Haojian Wu 827f49e3fa [clangd] Make go-to-def jumps to overriden methods on `final` specifier.
Reviewers: sammccall

Reviewed By: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73690
2020-01-30 12:49:30 +01:00
Kadir Cetinkaya 4fb1adcde2
[clangd] Log directory when a CDB is loaded
Summary: Fixes https://github.com/clangd/clangd/issues/268

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73628
2020-01-30 12:15:04 +01:00
Haojian Wu 7fd7a9a636 [clangd] Bump vscode-clangd v0.0.20
CHANGELOG:
- update lsp dependencies to pickup the latest LSP 3.15
- better support for cu files
2020-01-30 11:45:54 +01:00
Haojian Wu 9b71ec899a [clangd][vscode] Get rid of the deprecated vscode module in the extension.
Summary:
The vscode module has been deprecated, and it doesn't work anymore after
we require the minimal VSCode version 1.41.0, this patch migrate to the
new @type/vscode and vscode-test modules, see
https://code.visualstudio.com/api/working-with-extensions/testing-extension#migrating-from-vscode

Reviewers: sammccall

Subscribers: dschuff, ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73624
2020-01-30 11:36:08 +01:00
Nathan James a156a0e28d [ASTMatchers] Add hasPlacementArg and hasAnyPlacementArg traversal matcher for CXXNewExpr
Summary: Adds new traversal matchers called `hasPlacementArg` and `hasAnyPlacementArg` that matches on arguments to `placement new` operators.

Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: merge_guards_bot, mehdi_amini, hiraditya, steven_wu, dexonsmith, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73562
2020-01-30 10:16:04 +00:00
Mikael Holmén 635fbcdd1b Even more fixes of implicit std::string conversions 2020-01-30 07:32:53 +01:00
Sam McCall b500c49cd4 [clangd] Don't mmap source files on all platforms --> don't crash on git checkout
Summary:
Previously we mmapped on unix and not on windows: on windows mmap takes
an exclusive lock on the file and prevents the user saving changes!

The failure mode on linux is a bit more subtle: if the file is changed on disk
but the SourceManager sticks around, then subsequent operations on the
SourceManager will fail as invariants are violated (e.g. null-termination).

This commonly manifests as crashes after switching git branches with many files
open in clangd.

Nominally mmap is for performance here, and we should be willing to give some
up to stop crashing. Measurements on my system (linux+desktop+SSD) at least
show no measurable regression on an a fairly IO-heavy workload: drop disk caches,
open SemaOverload.cpp, wait for first diagnostics.

for i in `seq 100`; do
  for variant in mmap volatile; do
    echo 3 | sudo tee /proc/sys/vm/drop_caches
    /usr/bin/time --append --quiet -o ~/timings -f "%C %E" \
    bin/clangd.$variant -sync -background-index=0 < /tmp/mirror > /dev/null
  done
done

bin/clangd.mmap -sync -background-index=0 0:07.60
bin/clangd.volatile -sync -background-index=0 0:07.89
bin/clangd.mmap -sync -background-index=0 0:07.44
bin/clangd.volatile -sync -background-index=0 0:07.89
bin/clangd.mmap -sync -background-index=0 0:07.42
bin/clangd.volatile -sync -background-index=0 0:07.50
bin/clangd.mmap -sync -background-index=0 0:07.90
bin/clangd.volatile -sync -background-index=0 0:07.53
bin/clangd.mmap -sync -background-index=0 0:07.64
bin/clangd.volatile -sync -background-index=0 0:07.55
bin/clangd.mmap -sync -background-index=0 0:07.75
bin/clangd.volatile -sync -background-index=0 0:07.47
bin/clangd.mmap -sync -background-index=0 0:07.90
bin/clangd.volatile -sync -background-index=0 0:07.50
bin/clangd.mmap -sync -background-index=0 0:07.81
bin/clangd.volatile -sync -background-index=0 0:07.95
bin/clangd.mmap -sync -background-index=0 0:07.55
bin/clangd.volatile -sync -background-index=0 0:07.65
bin/clangd.mmap -sync -background-index=0 0:08.15
bin/clangd.volatile -sync -background-index=0 0:07.54
bin/clangd.mmap -sync -background-index=0 0:07.78
bin/clangd.volatile -sync -background-index=0 0:07.61
bin/clangd.mmap -sync -background-index=0 0:07.78
bin/clangd.volatile -sync -background-index=0 0:07.55
bin/clangd.mmap -sync -background-index=0 0:07.41
bin/clangd.volatile -sync -background-index=0 0:07.40
bin/clangd.mmap -sync -background-index=0 0:07.54
bin/clangd.volatile -sync -background-index=0 0:07.42
bin/clangd.mmap -sync -background-index=0 0:07.45
bin/clangd.volatile -sync -background-index=0 0:07.49
bin/clangd.mmap -sync -background-index=0 0:07.95
bin/clangd.volatile -sync -background-index=0 0:07.66
bin/clangd.mmap -sync -background-index=0 0:08.04

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73617
2020-01-29 19:44:14 +01:00
Benjamin Kramer 01213f9070 [clang-tidy] Initialize token before handing it to the lexer
Found by msan.
2020-01-29 16:48:57 +01:00
Mikael Holmén 2103e08b3f More fixes of implicit std::string conversions 2020-01-29 15:29:46 +01:00
Haojian Wu fce8983a3c [clangd] Remove the temporary alias for clangd::DiagnosticConsumer.
Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73619
2020-01-29 14:50:58 +01:00
Haojian Wu 17fadeffcc [clangd][vscode] Update lsp dependencies to pickup the progress support in LSP 3.15
Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73612
2020-01-29 12:58:53 +01:00
Haojian Wu e864f93766 [clangd] Replace raw lexer code with token buffer in prepare rename.
Summary:
there is a slight behavior change in this patch:

- before: `in^t a;`, returns our internal error message (no symbol at given location)
- after: `in^t a, returns null, and client displays their message (e.g.
   e.g. "the element can't be renamed" in vscode).

both are sensible according LSP, and we'd save one `rename` call in the later case.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73610
2020-01-29 12:57:18 +01:00
Sam McCall bcb3e42fdf [clangd] Go-to-definition on 'override' jumps to overridden method(s)
Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73367
2020-01-29 12:43:52 +01:00
Sam McCall 6f6952780b [clangd] add CODE_OWNERS
Reviewers: klimek

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73537
2020-01-29 12:43:19 +01:00
Kadir Cetinkaya 7830c2d44f
[clangd] Get rid of delayed template parsing
Summary:
No need to pass fno-delayed-template-parsing as the opposite flag is
only passed to cc1 when abi is set to msvc. Sending as a follow-up to D73613 to
keep changes in the release branch minimal.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73615
2020-01-29 12:12:45 +01:00
Kadir Cetinkaya 55b0e9c9d5
[clangd][Hover] Make tests hermetic by setting target triplet
Summary: Fixes https://bugs.llvm.org/show_bug.cgi?id=44696

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73613
2020-01-29 12:12:45 +01:00
Benjamin Kramer 0ee4b027d3 Fix an implicit conversion in clang-tidy. GCC 5 complains about it. 2020-01-29 12:05:35 +01:00
Benjamin Kramer 4e3f4f03f3 [ASTMatchers] StringRef'ify hasName
This was just inconvenient, and we make a copy anyways.
2020-01-29 10:53:08 +01:00
Haojian Wu 0d893fda43 [clangd] Add a symbol-name-based blacklist for rename.
Summary:
This patch adds a simple mechanism to disallow global rename
on std symbols. We might extend it to other symbols, e.g. protobuf.

Reviewers: kadircet

Subscribers: mgorny, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73450
2020-01-29 10:32:40 +01:00
Sam McCall 9a5c448a31 [clangd] Fix null check in FindTarget.
I've hit this stack trace a few times but don't have a good reproducer.
The code is unsafe by inspection, though.
2020-01-29 02:01:42 +01:00
Nico Weber 0eb64fcb89 Fix clangd-xpc-test-client build after 777180a32b 2020-01-28 19:48:31 -05:00
Nico Weber 95cb22d0f9 Fix xpc build after 777180a32b 2020-01-28 19:35:11 -05:00
Benjamin Kramer 777180a32b [ADT] Make StringRef's std::string conversion operator explicit
This has the same behavior as converting std::string_view to
std::string. This is an expensive conversion, so explicit conversions
are helpful for avoiding unneccessary string copies.
2020-01-28 23:47:07 +01:00
Benjamin Kramer adcd026838 Make llvm::StringRef to std::string conversions explicit.
This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.

This is mostly mechanical from a custom clang-tidy check, with a lot of
manual fixups. It uncovers a lot of minor inefficiencies.

This doesn't actually modify StringRef yet, I'll do that in a follow-up.
2020-01-28 23:25:25 +01:00
Nathan James 66e47a5720 [clang-tidy] adjust scripts to subsubsections in Release Notes
Summary:
I added subsubsections for typical Clang-tidy entries in Release Notes, so now scripts are aware of this changes.

I don't have GitHub commit access, so please commit changes.

Reviewers: aaron.ballman, alexfh, hokein

Reviewed By: alexfh

Subscribers: njames93, xazax.hun, cfe-commits

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D72527
2020-01-28 18:10:22 +00:00
Kadir Cetinkaya cb74d2e1bd
[clangd] Make bin/llvm-lit run standalone clangd tests
Summary:
Currently clangd lit tests can't be run in isolation because we don't
set some of the config parameters. This enables running

./bin/llvm-lit ../clang-tools-extra/clangd/test/

or any other test in that subdirectory.

Reviewers: sammccall

Subscribers: mgorny, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73538
2020-01-28 16:17:58 +01:00