Commit Graph

5254 Commits

Author SHA1 Message Date
Sam McCall 915f9785e0 [clangd] Rename ClangdUnit.h -> ParsedAST.h. NFC
This much better reflects what is (now) in this header.
Maybe a rename to ParsedTU would be an improvement, but that's a much
more invasive change and life is too short.

ClangdUnit is dead, long live ClangdUnitTests!

llvm-svn: 370862
2019-09-04 09:46:06 +00:00
Sam McCall cf3a585fff [clangd] Split Preamble.h out of ClangdUnit.h. NFC
Summary:
Add comment describing use of preamble in clangd.
Remove deps on ClangdUnit.h where possible.

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D67117

llvm-svn: 370843
2019-09-04 07:35:00 +00:00
Sam McCall 19cefc2878 [clangd] Move getBeginningOfIdentifier from ClangdUnit to SourceCode. Drop dependencies on ClangdUnit from some headers. NFC
llvm-svn: 370768
2019-09-03 15:34:47 +00:00
Michael Liao de52403843 [clangd] Remove redundant semi-colon.
llvm-svn: 370763
2019-09-03 15:02:46 +00:00
Haojian Wu 67853ac4e0 [clang-tidy] Fix a false positive in unused-using-decl check
The previous matcher "hasAnyTemplateArgument(templateArgument())" only
matches the first template argument, but the check wants to iterate all
template arguments. This patch fixes this.

Also some refactorings in this patch (to make the code reusable).

llvm-svn: 370760
2019-09-03 14:13:00 +00:00
Sam McCall 97e5de522e [clangd] Decouple macro/decl-under-cursor finding. Don't pretend there can be multiple macros. NFC.
llvm-svn: 370759
2019-09-03 14:12:48 +00:00
Ilya Biryukov 72379548eb [clangd] Fix a data race in test code
Found by TSan, thanks bkramer for pointing this out.

llvm-svn: 370758
2019-09-03 13:56:03 +00:00
Sam McCall 80195e7d1c [clangd] Wrong attribute on debug function in r370746
llvm-svn: 370757
2019-09-03 13:54:27 +00:00
Simon Pilgrim 54b989cf98 Fix MSVC "not all control paths return a value" warning. NFCI.
llvm-svn: 370750
2019-09-03 13:05:13 +00:00
Sam McCall 489cc589c5 [clangd] Add targetDecl(), which determines what declaration an AST node refers to.
Summary:
This is the first part of an effort to "unbundle" our libIndex use into separate
concerns (AST traversal, token<->node mapping, node<->decl mapping,
decl<->decl relationshipes).

Currently, clangd relies on libIndex to associate tokens, AST nodes, and decls.
This leads to rather convoluted implementations of e.g. hover and
extract-function, which are not naturally thought of as indexing applications.

The idea is that by decoupling different concerns, we make them easier
to use, test, and combine, and more efficient when only one part is needed.
There are some synergies between e.g. traversal and finding
relationships between decls, hopefully the benefits outweight these.

Reviewers: kadircet, ilya-biryukov

Subscribers: mgorny, MaskRay, jkorous, arphaman, jfb, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66751

llvm-svn: 370746
2019-09-03 11:35:50 +00:00
Daniel Sanders 0cdb04c3cf Make add_new_check.py's insertion of registerCheck<> match the sort order
Summary:
Following on from review comments in D65919 about the ordering
of the registerCheck<> calls. Sort based on the check name which might
be on the line after the registerCheck<>

Reviewers: aaron.ballman

Subscribers: cfe-commits, llvm-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66505

llvm-svn: 370527
2019-08-30 20:47:02 +00:00
Daniel Sanders 5b4f640499 [clang-tidy] Add llvm-prefer-register-over-unsigned to clang-tidy
Summary:
This clang-tidy check is looking for unsigned integer variables whose initializer
starts with an implicit cast from llvm::Register and changes the type of the
variable to llvm::Register (dropping the llvm:: where possible).

Reviewers: arsenm, bogner

Subscribers: jholewinski, MatzeB, qcolombet, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, wdng, nhaehnle, mgorny, sbc100, jgravelle-google, kristof.beyls, hiraditya, aheejin, kbarton, fedor.sergeev, javed.absar, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, tpr, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, Jim, s.egerton, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D65919

llvm-svn: 370512
2019-08-30 20:01:59 +00:00
Johan Vikstrom becbdc66dc [clangd] Add highlighting for macro expansions.
Summary: https://github.com/clangd/clangd/issues/134

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66995

llvm-svn: 370482
2019-08-30 15:47:27 +00:00
Johan Vikstrom 268f45bfb8 [clangd] Added highlighting for structured bindings.
Summary: Structured bindings are in a BindingDecl. The decl the declRefExpr points to are the BindingDecls. So this adds an additional if statement in the addToken function to highlight them.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66738

llvm-svn: 370473
2019-08-30 14:07:05 +00:00
Shaurya Gupta 3b08a61f7e [Clangd] ExtractFunction Added checks for broken control flow
Summary:
- Added checks for broken control flow
- Added unittests

Reviewers: sammccall, kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66732

llvm-svn: 370455
2019-08-30 09:57:56 +00:00
Johan Vikstrom 84b4c4a495 [clangd] Collecting main file macro expansion locations in ParsedAST.
Summary: TokenBuffer does not collect macro expansions inside macro arguments which is needed for semantic higlighting. Therefore collects macro expansions in the main file in a PPCallback when building the ParsedAST instead.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66928

llvm-svn: 370452
2019-08-30 09:33:27 +00:00
Dmitri Gribenko b22804b354 [Tooling] Migrated APIs that take ownership of objects to unique_ptr
Subscribers: jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66960

llvm-svn: 370451
2019-08-30 09:29:34 +00:00
Haojian Wu 0491d13ca5 [clangd] Add .vscode-test to .gitignore.
Reviewers: jvikstrom

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66949

llvm-svn: 370446
2019-08-30 09:06:18 +00:00
Nathan Ridge bd0f840f83 [clangd] Add distinct highlightings for static fields and methods
Reviewers: hokein, ilya-biryukov, jvikstrom

Reviewed By: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66828

llvm-svn: 370429
2019-08-30 03:37:24 +00:00
Dmitri Gribenko 907452107d Changed FrontendActionFactory::create to return a std::unique_ptr
Subscribers: jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66947

llvm-svn: 370379
2019-08-29 16:38:36 +00:00
Shaurya Gupta 6a801454f1 [Clangd] NFC: Added fixme for checking for local/anonymous types for extracted parameters
llvm-svn: 370372
2019-08-29 15:11:59 +00:00
Haojian Wu 1a28e11892 [clangd] Update out-of-date links in readme, NFC.
llvm-svn: 370371
2019-08-29 14:57:32 +00:00
Kadir Cetinkaya 1c4cd49608 [clangd][NFC] Update background-index command line description
Summary:
We didn't change this in D64019 just in case we revert it back.
Deleting it now.

Reviewers: hokein, sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66943

llvm-svn: 370367
2019-08-29 14:38:02 +00:00
Simon Pilgrim 46b346ea7b Fix MSVC "not all control paths return a value" warning. NFCI.
llvm-svn: 370343
2019-08-29 12:37:02 +00:00
Dmitri Gribenko 349ef2f2f9 [Index] Added a ShouldSkipFunctionBody callback to libIndex, and refactored clients to use it instead of inventing their own solution
Subscribers: jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66879

llvm-svn: 370338
2019-08-29 11:47:34 +00:00
Dmitri Gribenko 8d32053f11 [Index] Stopped wrapping FrontendActions in libIndex and its users
Exposed a new function, createIndexingASTConsumer, that creates an
ASTConsumer. ASTConsumers compose well.

Removed wrapping functionality from createIndexingAction.

llvm-svn: 370337
2019-08-29 11:43:05 +00:00
Johan Vikstrom 4683eec2d3 [clangd] Update themeRuleMatcher when color theme changes in vscode extension.
Summary:
Add event listener that listens to configuration changes and reloads the ThemeRuleMatcher when the theme changes.

Right now it will not recolor the files, depends on the colorizer CL for that.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66406

llvm-svn: 370305
2019-08-29 08:40:17 +00:00
Sam McCall d792204288 Reland "[clangd] Migrate last tweak tests to TweakTesting.h and remove old helpers. NFC"
This reverts commit 3dcf55aa45bad800533b36b70a14ebeb2b84e219, and avoids
use of multiline raw strings in macro calls.

llvm-svn: 370304
2019-08-29 08:20:48 +00:00
Heejin Ahn 660efa596f [clangd] Fix ExtractFunction dependencies
Summary: Without these dependencies, builds with `-DBUILD_SHARED_LIBS=ON` fail.

Reviewers: SureYeaah

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66910

llvm-svn: 370273
2019-08-28 23:17:38 +00:00
Sam McCall 7bb847478b Revert "[clangd] Migrate last tweak tests to TweakTesting.h and remove old helpers. NFC"
This reverts commit 8f85685b5c, which
breaks on old gcc that have the macro + raw strings bug.

llvm-svn: 370262
2019-08-28 21:05:49 +00:00
Shaurya Gupta bf4773485e [Clangd] Initial version of ExtractFunction
Summary:
- Only works for extraction from free functions
- Basic analysis of the code being extracted.
- Extract to void function
- Bail out if extracting a return, continue or break.
- Doesn't hoist decls yet

Reviewers: kadircet, sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65526

llvm-svn: 370249
2019-08-28 19:34:17 +00:00
Sam McCall 8f85685b5c [clangd] Migrate last tweak tests to TweakTesting.h and remove old helpers. NFC
llvm-svn: 370229
2019-08-28 16:41:22 +00:00
Haojian Wu 92e09b2f56 [clangd][vscode] Don't leak the resources
Summary: We miss a few places where we need to add them to the subscriptions.

Reviewers: jvikstrom

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66881

llvm-svn: 370218
2019-08-28 15:09:04 +00:00
Johan Vikstrom 2dddf3e4ff [clangd] Cleans up the semantic highlighting resources if clangd stops.
Summary: Disposes of the vscode listeners when clangd crashes and reuses the old highlighter when it restarts. The reason for reusing the highlighter is because this way the highlightings will not disappear as we won't have to dispose of them.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66743

llvm-svn: 370202
2019-08-28 13:46:22 +00:00
Haojian Wu d1a24bab3a [clang-tidy] Fix the potential infinite loop in recordIsTriviallyDefaultConstructible.
Summary:
The recordIsTriviallyDefaultConstructible may cause an infinite loop when
running on an ill-formed decl.

Reviewers: gribozavr

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66874

llvm-svn: 370200
2019-08-28 13:45:53 +00:00
Sam McCall 9004c077c0 [clang-tidy] readability-identifier-naming shouldn't complain about CRTP pseudo-overrides
Reviewers: ilya-biryukov

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66864

llvm-svn: 370193
2019-08-28 12:08:57 +00:00
Sam McCall ab6594575a [clangd] Fix SelectionTree to allow selection range expression in foreach loops.
Reviewers: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66869

llvm-svn: 370191
2019-08-28 12:05:12 +00:00
Ilya Biryukov d73ac96d80 [clangd] Surface errors from command-line parsing
Summary:
Those errors are exposed at the first character of a file,
for a lack of a better place.

Previously, all errors were stored inside the AST and report
accordingly. However, errors in command-line argument parsing could
result in failure to produce the AST, so we need an alternative ways to
report those errors.

We take the following approach in this patch:
  - buildCompilerInvocation() now requires an explicit DiagnosticConsumer.
  - TUScheduler and TestTU now collect the diagnostics produced when
    parsing command line arguments.
    If pasing of the AST failed, diagnostics are reported via a new
    ParsingCallbacks::onFailedAST method.
    If parsing of the AST succeeded, any errors produced during
    command-line parsing are stored alongside the AST inside the
    ParsedAST instance and reported as previously by calling the
    ParsingCallbacks::onMainAST method;
  - The client code that uses ClangdServer's DiagnosticConsumer
    does not need to change, it will receive new diagnostics in the
    onDiagnosticsReady() callback

Errors produced when parsing command-line arguments are collected using
the same StoreDiags class that is used to collect all other errors. They
are recognized by their location being invalid. IIUC, the location is
invalid as there is no source manager at this point, it is created at a
later stage.

Although technically we might also get diagnostics that mention the
command-line arguments FileID with after the source manager was created
(and they have valid source locations), we choose to not handle those
and they are dropped as not coming from the main file. AFAICT, those
diagnostics should always be notes, therefore it's safe to drop them
without loosing too much information.

Reviewers: kadircet

Reviewed By: kadircet

Subscribers: nridge, javed.absar, MaskRay, jkorous, arphaman, cfe-commits, gribozavr

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66759

llvm-svn: 370177
2019-08-28 09:24:55 +00:00
Fangrui Song 180380651c [clang-doc] Use llvm::createStringError and canonicalize error messages
"Bad block found.\n" -> "bad block found"

The lower cased form with no full stop or newline is more common in LLVM
tools.

Reviewed By: juliehockett

Differential Revision: https://reviews.llvm.org/D66783

llvm-svn: 370155
2019-08-28 02:56:03 +00:00
Nathan Ridge 86a4a530f4 [clangd] Add a distinct highlighting for local variables
Summary:
It's useful to be able to distinguish local variables from namespace
scope variables.

Reviewers: hokein, jvikstrom

Reviewed By: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66723

llvm-svn: 370103
2019-08-27 19:39:11 +00:00
Alex Lorenz 559ae14c9b Remove clang-tidy-vs from clang-tools-extra (PR41791)
The clang-tidy-vs visual studio plugin in clang-tools-extra contains a
security vulnerability in the YamlDotNet package [1]. I posted to cfe-dev [2],
asking if there was anyone who was interested in updating the the plugin
to address the vulnerability. Reid mentioned that Zach (the original committer),
said that there's another plugin (Clang Power Tools) that provides clang-tidy support,
with additional extra features, so it would be ok to remove clang-tidy-vs.

This commit removes the plugin to address the security vulnerability, and adds
a section to the release notes that mentions that the plugin was removed, and
suggests to use Clang Power Tools.

Fixes PR 41791.

[1]: https://nvd.nist.gov/vuln/detail/CVE-2018-1000210
[2]: http://lists.llvm.org/pipermail/cfe-dev/2019-August/063196.html

Differential Revision: https://reviews.llvm.org/D66813

llvm-svn: 370096
2019-08-27 18:36:08 +00:00
Alex Lorenz 1c8a4b7204 Use FileEntryRef for PPCallbacks::HasInclude
This fixes the issue where a filename dependendency was missing if the file that
was referenced with __has_include() was accessed through a symlink in an earlier run,
if the file manager was reused between runs.

llvm-svn: 370081
2019-08-27 17:32:42 +00:00
Dmitri Gribenko 3d5f48dc7f Refactor GlobList from an ad-hoc linked list to a vector
Summary: I think it makes method implementations more obvious.

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66788

llvm-svn: 370039
2019-08-27 10:56:13 +00:00
Ilya Biryukov 999e4c4793 [Driver] Add an option for createInvocationFromCommandLine to recover on errors
Summary:
Previously, it would always return nullptr on any error.
This change adds a parameter, controlling whether the function should
attempt to return a non-null result even if unknown arguments (or other
errors were encountered).

The new behavior is only used in clangd.

Considered an alternative of changing the return value instead of adding
a new parameter, but that would require updating all callsites. Settled
with the parameter to minimize the code changes.

Reviewers: gribozavr

Reviewed By: gribozavr

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66731

llvm-svn: 370033
2019-08-27 10:02:18 +00:00
Sam McCall 37a188b6e8 [clangd] Fix for r370029 test that got left in my client
llvm-svn: 370030
2019-08-27 09:27:00 +00:00
Sam McCall c791d85b12 [clangd] Fix toHalfOpenFileRange where start/end endpoints are in different files due to #include
Summary: https://github.com/clangd/clangd/issues/129

Reviewers: SureYeaah

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66590

llvm-svn: 370029
2019-08-27 08:44:06 +00:00
Dmitri Gribenko fd2315ce21 GlobList: added a clear test for pattern priority
Summary:
The last glob that matches the string decides whether that string is
included or excluded.

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66787

llvm-svn: 370028
2019-08-27 08:42:42 +00:00
Sam McCall 049bb913e2 Revert "[clangd] Release notes" (wrong branch)
This reverts commit 51029e5c15.

llvm-svn: 370022
2019-08-27 06:58:05 +00:00
Alex Lorenz 6a808d5a83 Fix clangd's IndexAction for FileSkipped API update
llvm-svn: 370004
2019-08-27 01:36:00 +00:00
Alex Lorenz 67d25fede9 Use FileEntryRef for PPCallbacks::FileSkipped
This fixes the issue where a filename dependendency was missing if the file that
was skipped was included through a symlink in an earlier run, if the file
manager was reused between runs.

llvm-svn: 369998
2019-08-27 01:03:25 +00:00
Sam McCall 51029e5c15 [clangd] Release notes
llvm-svn: 369934
2019-08-26 17:47:44 +00:00
Julie Hockett 72e1f7f960 [clang-doc] Switch Generator::CreateResources to use llvm::Error
Differential Revision: https://reviews.llvm.org/D66502

llvm-svn: 369925
2019-08-26 16:39:48 +00:00
Kadir Cetinkaya 3877aa1660 [clangd] Fix docs
llvm-svn: 369920
2019-08-26 16:01:07 +00:00
Dmitri Gribenko a6fed93f0d Moved GlobList into a separate header file
Summary:
It is a separate abstraction that is used in more contexts than just
a helper for ClangTidyDiagnosticConsumer.

Subscribers: mgorny, cfe-commits

Tags: #clang

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

llvm-svn: 369918
2019-08-26 15:44:32 +00:00
Kadir Cetinkaya 3aeed0fd5a [clangd] Add docs for configuration knobs in clangd
Summary:
This is a first step in documenting different configuration knobs we
have in clangd.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66740

llvm-svn: 369917
2019-08-26 15:42:16 +00:00
Yitzhak Mandelbaum 0cd4ab91ab [clang-tidy][NFC] Qualify `makeRule` call in test, for consistency with other calls.
One call `makeRule` is unqualified (and unintentionally relying on ADL to
resolve correctly). This revision qualifies that call for consistency and to
drop use of ADL.

llvm-svn: 369915
2019-08-26 15:27:05 +00:00
Yitzhak Mandelbaum 640230cc97 [clang-tidy] TransformerClangTidyCheck: change choice of location for diagnostic message.
Summary:
This patch changes the location specified to the
`ClangTidyCheck::diag()`. Currently, the beginning of the matched range is
used. This patch uses the beginning of the first fix's range.  This change both
simplifies the code and (hopefully) gives a more intuitive result: the reported
location aligns with the fix(es) provided, rather than the (arbitrary) range of
the rule's match.

N.B. this patch will break the line offset numbers in lit tests if the first fix
is not at the beginning of the match.

Reviewers: gribozavr

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66676

llvm-svn: 369914
2019-08-26 15:17:29 +00:00
Johan Vikstrom 1c9aa70b04 [clangd] Handling text editor/document lifetimes in vscode extension.
Summary:
Just reapplies highlightings for all files when visible text editors change. Could find the correct text editor that should be reapplied but going for a simple implementation instead.
Removes the associated highlighting entry from the Colorizer when a text document is closed.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66735

llvm-svn: 369911
2019-08-26 13:56:45 +00:00
Johan Vikstrom 3b6d7040cf [clangd] Added a colorizer to the vscode extension.
Summary:
Adds the main colorizer component. It colorizes every time clangd sends a publishSemanticHighlighting notification.
Every time it colorizes it does a full recolorization (removes all decorations from the editor and applies new ones). The reason for this is that all ranges for the same scope share a TextEditorDecorationType. This is due to TextEditorDecorationTypes being very expensive to create. The prototype used one DecorationType per range but that ran into very big performance problems (it took >100 ms to apply 600 lines of highlightings which froze the editor).

This version does not share the problem of being extremly slow, but there is probably potential to optimize it even more.

No document/texteditor lifecycle management code in this CL, that will come in the next one.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66219

llvm-svn: 369893
2019-08-26 11:36:11 +00:00
Haojian Wu 0a6000f2cb [clangd] Send highlighting diff beyond the end of the file.
Summary: This would make the client life (tracking the changes) easier.

Reviewers: jvikstrom

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66541

llvm-svn: 369884
2019-08-26 08:38:45 +00:00
Benjamin Kramer 3c614f7b48 [clang-tidy] Manually enable exceptions in tesst that uses them
llvm-svn: 369853
2019-08-24 17:19:06 +00:00
Julie Hockett 245154de50 [clang-doc] Bump BitcodeWriter max line number to 32U
PR43039 reports hitting the assert on a very large file, so bumping this
to allow for larger files.

Differential Revision: https://reviews.llvm.org/D66681

llvm-svn: 369811
2019-08-23 21:14:05 +00:00
Benjamin Kramer ccc272cd32 Fix clang-tidy warning in clang-tidy
argument name 'FixDescription' in comment does not match parameter name 'Description'

Patch by Nils Barth!

llvm-svn: 369783
2019-08-23 17:27:04 +00:00
Kristof Umann dabfea85fc [clang-tidy] Possibility of displaying duplicate warnings
Summary: In case a checker is registered multiple times as an alias, the emitted warnings are uniqued by the report message. However, it is random which checker name is included in the warning. When processing the output of clang-tidy this behavior caused some problems. In this commit the uniquing key contains the checker name too.

Reviewers: alexfh, xazax.hun, Szelethus, aaron.ballman, lebedev.ri, JonasToth, gribozavr

Reviewed By: alexfh

Subscribers: dkrupp, whisperity, rnkovacs, mgrang, cfe-commits

Patch by Tibor Brunner!

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65065

llvm-svn: 369763
2019-08-23 14:57:27 +00:00
Haojian Wu bc01f48da3 [clangd] Link more clang-tidy modules to clangd
Summary: There are two new clang-tidy modules being added recently.

Reviewers: sammccall, jdoerfert

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66632

llvm-svn: 369741
2019-08-23 09:13:23 +00:00
Haojian Wu c4905a232c [clang-tidy] Don't emit google-runtime-references warning for functions defined in macros.
Summary:
The macro are usually defined in the common/base headers which are hard
for normal users to modify it.

Reviewers: gribozavr, alexfh

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66631

llvm-svn: 369739
2019-08-23 08:47:27 +00:00
Benjamin Kramer b3a991df3c Fight a bit against global initializers. NFC.
llvm-svn: 369695
2019-08-22 19:43:27 +00:00
Benjamin Kramer 15ee5ba6e7 [clangd] Fold string copy into lambda capture. NFC.
llvm-svn: 369679
2019-08-22 18:09:46 +00:00
Shaurya Gupta 1a28a06ebe [Clangd] Tweaktesting replace toString with consumeError
llvm-svn: 369676
2019-08-22 17:36:31 +00:00
Benjamin Kramer d5aecb9486 Retire llvm::less/equal in favor of C++14 std::less<>/equal_to<>.
llvm-svn: 369674
2019-08-22 17:31:59 +00:00
Shaurya Gupta 5ee01ef1e5 Fixed Missing Expected error handling
llvm-svn: 369666
2019-08-22 16:42:42 +00:00
Haojian Wu 08d93f1ed3 [clangd] Send suppported codeActionKinds to the client.
Summary:
This would make client know which codeActionKinds that clangd may
return.

VSCode will add a new entry "Refactor..." (which shows all
refactoring-kind code actions) in the right-click menu.

Reviewers: ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66592

llvm-svn: 369656
2019-08-22 14:53:45 +00:00
Dmitri Gribenko 282dc72c8b Remove \brief commands from doxygen comments.
Summary:
We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

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

[This is analogous to LLVM r331272 and CFE r331834]

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

Tags: #clang

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

llvm-svn: 369643
2019-08-22 11:32:57 +00:00
Haojian Wu 35038c914c [clangd] The ClangdServer::EnableHiddenFeatures is not used any more.
Remove it.

llvm-svn: 369631
2019-08-22 09:01:04 +00:00
Yuanfang Chen 08ff5df49c Fix documentation build after rL369568
llvm-svn: 369578
2019-08-21 20:59:16 +00:00
Yuanfang Chen f24c1e6b51 [clang-tidy] Check for dynamically initialized statics in headers.
Finds instances where variables with static storage are initialized dynamically in header files.

Reviewed By: aaron.ballman, alexfh

Patch by Charles Zhang!

Differential Revision: https://reviews.llvm.org/D62829

llvm-svn: 369568
2019-08-21 20:00:01 +00:00
Haojian Wu 65c58a902d [clangd] Ignore implicit conversion-operator nodes in find refs.
Reviewers: ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66478

llvm-svn: 369514
2019-08-21 10:54:19 +00:00
Haojian Wu 0e8e4b09d2 [clangd] Fix one testcase in XRefsTests.
Summary:
The test didn't test anything actually -- it used "[]" as annotation which should be
"[[]]".

This patch also fixes a bug in XRef where we may return duplicated refs.

Reviewers: ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66349

llvm-svn: 369387
2019-08-20 14:07:27 +00:00
Ilya Biryukov 30c86b64da [clangd] Skip function bodies inside processed files while indexing
Summary:
This significantly improves performance of background indexing.

We do not collect references and declarations inside the processed
files, so this does not affect the final indexing results.

The idea is borrowed from libclang, which has a similar optimization in
its indexing functionality.

Measurements show a nice decrease in indexing time, up to ~40% for
building the whole index. These are not proper benchmarks, so one should
not rely on these results too much.

1. Rebuilding the whole index for LLVM:
  - Before. Total time: 14m58s.
    ./bin/clangd -pch-storage=memory < ./clangd.input  23917.67s user 515.86s system 2718% cpu 14:58.68 total
  - After. Total time: 8m41s.
    ./bin/clangd -pch-storage=memory < ./clangd.input  13627.29s user 288.10s system 2672% cpu 8:40.67 total

2. Rebuilding index after removing shards matching '*clangd*' (case-insensitively):
  - Before. Total time: 30s.
    ./bin/clangd -pch-storage=memory < ./clangd.input  130.94s user 6.82s system 452% cpu 30.423 total
  - After. Total time: 26s.
    ./bin/clangd -pch-storage=memory < ./clangd.input  80.51s user 5.40s system 333% cpu 25.777 total

Reviewers: kadircet, sammccall

Reviewed By: kadircet

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66226

llvm-svn: 369349
2019-08-20 08:54:30 +00:00
Richard Trieu 8f9e489a66 Fix typo. "piont" => "point"
Found by Chris Morris (cwmorris).

llvm-svn: 369316
2019-08-20 00:28:21 +00:00
Johan Vikstrom f497da3041 [clangd] Added highlighting for tokens that are macro arguments.
Summary:
Adds semantic highlighting for tokens that are a macro argument.
Example:
```
D_V(SomeVar);
```
The "SomeVar" inside the macro is highlighted as a variable now.

Tokens that are in a macro body expansion are ignored in this patch for three reasons.
* The spelling loc is inside the macro "definition" meaning it would highlight inside the macro definition (could probably easily be fixed by using getExpansionLoc instead of getSpellingLoc?)
* If wanting to highlight the macro definition this could create duplicate tokens. And if the tokens are of different types there would be conflicts (tokens in the same range but with different types). Say a macro defines some name and both a variable declaration and a function use this, there would be two tokens in the macro definition but one with Kind "Variable" and the other with Kind "Function".
* Thirdly, macro body expansions could come from a file that is not the main file (easily fixed, just check that the Loc is in the main file and not even a problem if we wanted to highlight the actual macro "invocation")

Reviewers: hokein, sammccall, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64741

llvm-svn: 369275
2019-08-19 16:27:49 +00:00
Johan Vikstrom 17587b36d1 [clangd] Added special HighlightingKind for function parameters.
Summary: This means that function parameters are no longer highlighted as variable.other.cpp but instead as variable.parameter.cpp which is the more "correct" TextMate scope for them.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66335

llvm-svn: 369238
2019-08-19 07:51:39 +00:00
Nathan Ridge dfe5f3eb0a [clangd] Update features table in the docs with links to LSP extension proposals
Also update the semantic coloring entry to reflect it being supported in
clangd now.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65373

llvm-svn: 369229
2019-08-19 05:11:15 +00:00
Diego Astiazaran ee6700f697 [clang-doc] Fix casting not working in gcc 5.4.0
An implicit cast of std::string to llvm::SmallString<> was breaking GCC 5.4.0 builder.
A pair using llvm::SmallString<> now uses std::string.

Differential Revision: https://reviews.llvm.org/D66378

llvm-svn: 369182
2019-08-17 01:45:03 +00:00
Diego Astiazaran 3550da79ec [clang-doc] Redesign of generated HTML files
The new design includes a header (contains the project name), a main section, and a footer.
The main section is divided into three subsections. Left, middle, right. The left section contains the general index, the middle contains the info's data, and the right contains the index for the info's content.
The CSS has been updated.
A flag --project-name is added.
The Attributes attribute of the TagNode struct is now a vector of pairs because these attributes should be rendered in the insertion order.
The functions (cpp and js) that converts an Index tree structure into HTML were slightly modified; the first ul tag created is now a ol tag. The inner lists are still ul.

Differential Revision: https://reviews.llvm.org/D66353

llvm-svn: 369139
2019-08-16 18:38:11 +00:00
Diego Astiazaran b46131e5c3 [clang-doc] Fix records in global namespace
When a Record is declared in the global namespace, clang-doc serializes
it as a child of the global namespace, so the global namespace is now
one if its parent namespaces. This namespace was not being included in
the list of namespaces of the Info causing paths to be incorrect and the
index rendered incorrectly.
Affected tests have been fixed.

Differential revision: https://reviews.llvm.org/D66298

llvm-svn: 369123
2019-08-16 16:10:32 +00:00
Haojian Wu 427762f03d [clangd] suppress -Wparentheses warning: suggest parentheses around ‘&&’ within ‘||’
llvm-svn: 369105
2019-08-16 13:20:51 +00:00
Ilya Biryukov 12864001a6 [clangd] Simplify code of ClangdLSPServer::onCommand
Summary:
By inlining a complicated lambda into its single call-site.

Also ensure we call Reply() exactly once even if tweaks return both
ShowMessage and ApplyEdit effects.

Reviewers: hokein

Reviewed By: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66343

llvm-svn: 369100
2019-08-16 12:46:41 +00:00
Johan Vikstrom 71ae2bf302 [clangd] Added highlighting for non type templates.
Summary: Non type templates were not being highlighted. This highlights
them as TemplateParameters.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66221

llvm-svn: 369090
2019-08-16 09:30:21 +00:00
Ilya Biryukov b3c2f5d2ee [clangd] Remove Bind, use C++14 lambda captures instead. NFC
llvm-svn: 369089
2019-08-16 09:20:01 +00:00
Stephane Moore a53cce943d [clang-tidy] Migrate objc-super-self to use isDerivedFrom 🚛
Summary:
This migrates objc-super-self to `isDerivedFrom` as it now supports
matching Objective-C interface declarations.

Test Notes:
Ran clang tools tests.

Reviewers: aaron.ballman, gribozavr

Reviewed By: aaron.ballman

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66270

llvm-svn: 369081
2019-08-16 02:27:58 +00:00
Csaba Dabis a079a42708 [analyzer] Analysis: Silence checkers
Summary:
This patch introduces a new `analyzer-config` configuration:
`-analyzer-config silence-checkers`
which could be used to silence the given checkers.

It accepts a semicolon separated list, packed into quotation marks, e.g:
`-analyzer-config silence-checkers="core.DivideZero;core.NullDereference"`

It could be used to "disable" core checkers, so they model the analysis as
before, just if some of them are too noisy it prevents to emit reports.

This patch also adds support for that new option to the scan-build.
Passing the option `-disable-checker core.DivideZero` to the scan-build
will be transferred to `-analyzer-config silence-checkers=core.DivideZero`.

Reviewed By: NoQ, Szelethus

Differential Revision: https://reviews.llvm.org/D66042

llvm-svn: 369078
2019-08-16 01:53:14 +00:00
Stephane Moore 8c90c1d2d5 [clang-tidy] Migrate objc-forbidden-subclassing to use isDerivedFrom 🚛
Summary:
This migrates objc-forbidden-subclassing to `isDerivedFrom` as it now
supports matching Objective-C interface declarations.

Test Notes:
Ran clang tools tests.

Reviewers: aaron.ballman, gribozavr

Reviewed By: aaron.ballman

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66269

llvm-svn: 369076
2019-08-16 01:52:17 +00:00
Diego Astiazaran ba3d595f93 [clang-doc] Serialize inherited attributes and methods
clang-doc now serializes the inherited attributes and methods, not only the name of the base class.
All inherited are tracked, if B:A and C:B, info of A is included in C.
This data is stored in attribute Bases in a RecordInfo.
Previously tracked inheritance data, stored in Parents and VParents, hasn't been removed to reduce review load.

Differential revision: https://reviews.llvm.org/D66238

llvm-svn: 369075
2019-08-16 00:10:49 +00:00
Diego Astiazaran b7bb9fb28f [clang-doc] Sort index elements case insensitive
Implement logic to compare the references of the index case insensitive.

Differential revision: https://reviews.llvm.org/D66299

llvm-svn: 369068
2019-08-15 23:32:12 +00:00
Diego Astiazaran 77dc05b945 [clang-doc] Fix use of source-root flag
The value, if any, of --source-root flag was not being used.
This has been fixed and the logic was moved to the ClangDocContext
contructor.

Differential revision: https://reviews.llvm.org/D66268

llvm-svn: 369065
2019-08-15 23:20:42 +00:00
Diego Astiazaran 6a29ae4bde [clang-doc] Fix bitcode writer for access specifiers
Bitcode writer was not emitting the corresponding record for the Access attribute of a FunctionInfo. This has been added.
AS_none was being used as the default value for any AcesssSpecifier attribute
(in FunctionInfo and MemberTypeInfo), this has been changed to AS_public
because this is the enum value that evaluates to 0.
The bitcode writer doesn't write values that are 0 so if an attribute
was set to AS_public, this value is not written and after reading the
bitcode it would have the default value which is AS_none. This is why
the default value is now AS_public.

Differential Revision: https://reviews.llvm.org/D66151

llvm-svn: 369063
2019-08-15 23:04:27 +00:00
Benjamin Kramer 9880b5dd21 [clangd] Don't use Bind() where C++14 move capture works
llvm-svn: 369005
2019-08-15 14:16:06 +00:00
Benjamin Kramer e1bc32bddf [clangd] llvm::integer_sequence -> std::integer_sequence.
llvm-svn: 368991
2019-08-15 11:09:22 +00:00
Benjamin Kramer 37508d3dd9 Replace llvm::integer_sequence and friends with the C++14 standard version
The implementation in libc++ takes O(1) compile time, ours was O(n).

llvm-svn: 368990
2019-08-15 10:56:05 +00:00
Jonas Devlieghere 1c705d9c53 [clang-tools-extra] Migrate llvm::make_unique to std::make_unique
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.

Differential revision: https://reviews.llvm.org/D66259

llvm-svn: 368944
2019-08-14 23:52:23 +00:00
Diego Astiazaran 6169a73088 [clang-doc] Add missing check in tests
Path is now checked when comparing two Infos in the unit tests.

Differential Revision: https://reviews.llvm.org/D66124

llvm-svn: 368912
2019-08-14 20:19:33 +00:00
Haojian Wu bcd4d59a14 [clangd][vscode] Surface the error when applying tweaks fails
Summary:
The current behavior for a failed request is just to log it in the
output panel. When applyTweak fails for whatever reason, users usually don't get
informed (unless they open the output panel and dig the log).

this patch is to surface these errors by prompting up a message diag.

Reviewers: ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66211

llvm-svn: 368851
2019-08-14 13:38:52 +00:00
Ilya Biryukov 38fa1a9168 [clangd] Print qualifiers of out-of-line definitions in document outline
Summary: To improve the UX around navigating and searching through the results.

Reviewers: hokein

Reviewed By: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66215

llvm-svn: 368842
2019-08-14 12:51:04 +00:00
Shaurya Gupta d81a869876 [Clangd] NFC: Fixed comment typo
llvm-svn: 368841
2019-08-14 12:40:09 +00:00
Johan Vikstrom 9fa2599e9b [clangd] Loading TokenColorRules as a class mapping the rules to their associated clangd TextMate scope index.
Summary: Loads a mapping of the clangd scope lookup table scopes to the most specific rule with the highest "precedence" on initialize. Preprocesses into a class so it's simple/fast to access when doing the actual coloring later.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65856

llvm-svn: 368834
2019-08-14 12:11:58 +00:00
Ilya Biryukov 928bf19b65 [clangd] Fix typos and grammar in a comment. NFC
llvm-svn: 368824
2019-08-14 10:49:32 +00:00
Yitzhak Mandelbaum 1896a31dd3 [clang-tidy] Update `TransformerClangTidyCheck` to use new `buildMatchers` functionality.
Summary:
`buildMatchers` is the new, more general way to extract the matcher from a rule.
This change migrates the code to use it instead of `buildMatcher`.

Reviewers: gribozavr

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65879

llvm-svn: 368700
2019-08-13 14:48:13 +00:00
Diego Astiazaran e27f778a19 [clang-doc] Generate HTML links for children namespaces/records
Path is now stored in the references to the child while serializing,
then this path is used to generate the relative path in the HTML
generator.
Now some references have paths and some don't so in the reducing phase,
references are now properly merged checking for empty attributes.
Tests added for HTML and YAML generators, merging and serializing.
computeRelativePath function had a bug when the filepath is part of the
given directory; it returned a path that starts with a separator. This
has been fixed.

Differential Revision: https://reviews.llvm.org/D65987

llvm-svn: 368602
2019-08-12 18:42:46 +00:00
Sam McCall 6a3c2c84be [clangd] Refactor computation of extracted expr in ExtractVariable tweak. NFC
Summary:
This takes this logic out of the Tweak class, and simplifies the signature of
the function where the main logic is.

The goal is to make it easier to turn into a loop like:

  for (current = N; current and current->parent are both expr; current = current->parent)
    if (suitable(current))
      return current;
  return null;

Reviewers: SureYeaah

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65333

llvm-svn: 368590
2019-08-12 17:05:35 +00:00
Ilya Biryukov 119d1c278c [clangd] Separate chunks with a space when rendering markdown
Summary:
This results in better rendering of resulting markdown.

Especially noticeable in coc.nvim that does not have a visible horizontal
spaces around inline code blocks. More details and a screenshot from
coc.nvim can be found in https://github.com/clangd/clangd/issues/95.

Reviewers: sammccall

Reviewed By: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66086

llvm-svn: 368581
2019-08-12 14:35:30 +00:00
Johan Vikstrom 020eea0c16 [clangd] Added the vscode SemanticHighlighting feature code but did not enable it in the client.
Summary: Added the code for the StaticFeature that must be registered to the client. Also decoding the notification data into objects. Did not register it to the client yet.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65998

llvm-svn: 368568
2019-08-12 13:33:43 +00:00
Johan Vikstrom cbe3ed552f [clangd] Remove highlightings coming from non topLevelDecls from included files.
Summary: It is possible to write include code from other files so that the decls from there do not become topLevelDecls (For example by including methods for a class). These Decls are not filtered by topLevelDecls and therefore SemanticHighlighting must manually check that every SLoc belongs in the main file. Otherwise there can be highlightings appearing in places where they should not.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66083

llvm-svn: 368563
2019-08-12 13:01:11 +00:00
Haojian Wu d614a65d85 [clangd] Drop diags from non-written #include.
Summary: This would fix that we show weird diagnostics on random lines of the main file.

Reviewers: ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66074

llvm-svn: 368549
2019-08-12 09:35:04 +00:00
Johan Vikstrom fd5ea1b0d9 [clangd] Highlighting auto variables as the deduced type.
Summary:
Done in VisitDeclaratorDecl as the AutoTypeLoc is not deduced.
Scoped to only work for variables.
auto function return values need to be handled in a special way (separate patch for that).
auto's that are in lambdas ar enot highlighted as we don't highlight their underlying type (it's a RecordDecl, but the name is not an identifier so it returns in addToken).

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65996

llvm-svn: 368546
2019-08-12 07:45:12 +00:00
Sam McCall 1aaef90c2a [clangd] Disallow extraction of expression-statements.
Summary:
I split out the "extract parent instead of this" logic from the "this isn't
worth extracting" logic (now in eligibleForExtraction()), because I found it
hard to reason about.

While here, handle overloaded as well as builtin assignment operators.

Also this uncovered a bug in getCallExpr() which I fixed.

Reviewers: SureYeaah

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65337

llvm-svn: 368500
2019-08-09 23:40:54 +00:00
Sam McCall 4bd6ebb495 clangd: use -j for background index pool
Summary:
clangd supports a -j option to limit the amount of threads to use for parsing
TUs. However, when using -background-index (the default in later versions of
clangd), the parallelism used by clangd defaults to the hardware_parallelisn,
i.e. number of physical cores.

On shared hardware environments, with large projects, this can significantly
affect performance with no way to tune it down.

This change makes the -j parameter apply equally to parsing and background
index. It's not perfect, because the total number of threads is 2x the -j value,
which may still be unexpected. But at least this change allows users to prevent
clangd using all CPU cores.

Reviewers: kadircet, sammccall

Reviewed By: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66031

llvm-svn: 368498
2019-08-09 23:03:32 +00:00
Diego Astiazaran dc30049cb3 [clang-doc] Generate an HTML index file
clang-doc now generates a file that contains only an index to all the
infos that can be used as the landing page for the generated website.

Differential Revision: https://reviews.llvm.org/D65918

llvm-svn: 368484
2019-08-09 20:52:28 +00:00
Sam McCall 06431b2b04 [clangd] Give absolute path to clang-tidy and include-fixer. HintPath should always be absolute, some URI schemes care.
llvm-svn: 368482
2019-08-09 20:45:24 +00:00
Diego Astiazaran 665e9676c2 [clang-format] Add link to source code in file definitions
Two command line options have been added to clang-doc.
  --repository=<string>       - URL of repository that hosts code; used for links to definition locations.
  --source-root=<string>      - Directory where processed files are stored. Links to definition locations will only be generated if the file is in this dir.

If the file is in the source-root and a repository options is passed;
a link to the source code will be rendered by the HTML generator.

Differential Revision: https://reviews.llvm.org/D65483

llvm-svn: 368460
2019-08-09 17:49:41 +00:00
Johan Vikstrom 1429b7ed9e [clangd] Added highlighting for constructor initializers.
Summary: Constructor initializers were not being highlighted. This adds highlighting for them by using TraverseConstructorInitializer. Uses the Traverse* because there is no visit for CXXCtorInitializer.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66001

llvm-svn: 368434
2019-08-09 12:19:10 +00:00
Haojian Wu 8b49173a82 [clangd] Use raw rename functions to implement the rename.
Summary:
The API provided by refactoring lib doesn't provide enough flexibility
to get clangd's rename to behave as we expect. Instead, we replace it
with the low-level rename functions, which give us more control.

Bonus:
- performance, previously we visit the TU to find all occurrences,
  now we just visit top-level decls from main file;
- fix a bug where we wrongly filter out the main file replacement due to the
  different relative/absolute file path;

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65936

llvm-svn: 368429
2019-08-09 10:55:22 +00:00
Johan Vikstrom ef0c3ddc7f [clangd] Fixed printTemplateSpecializationArgs not printing partial variable specialization arguments.
Summary:
printTemplateSpecializationArgs was not printing partial variable specialization args. This adds an additional If clause where we check if it's a VariableTemplatePartialSpecializationDecl and returns the ArgumentLocs if that's the case.
Also adds tests for printTemplateSpecializationArgs in ASTTests.cpp.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65926

llvm-svn: 368403
2019-08-09 07:35:16 +00:00
Johan Vikstrom d639f6dff1 [AST] No longer visiting CXXMethodDecl bodies created by compiler when method was default created.
Summary:
Clang generates function bodies and puts them in the AST for default methods if it is defaulted outside the class definition.

`
struct A {
   A &operator=(A &&O);
};

A &A::operator=(A &&O) = default;
`

This will generate a function body for the `A &A::operator=(A &&O)` and put it in the AST. This body should not be visited if implicit code is not visited as it is implicit.

This was causing SemanticHighlighting in clangd to generate duplicate tokens and putting them in weird places.

Reviewers: hokein, ilya-biryukov, gribozavr

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65938

llvm-svn: 368402
2019-08-09 07:30:28 +00:00
Diego Astiazaran e2d4577075 [clang-doc] Protect Index with mutex during reducing and generation stage
Idx in ClangDocContext instance was being modified by multiple threads
causing a seg fault.
A mutex is added to avoid this.

Differential Revision: https://reviews.llvm.org/D65915

llvm-svn: 368313
2019-08-08 17:14:17 +00:00
Johan Vikstrom d73d994746 [clangd] Added semantic highlighting support for primitives.
Summary:
Adds a new HighlightingKind "Primitive". Adds a special case for TypeLocs that have an underlying TypePtr that is are builtin types, adding them as primitives.
The primary reason for this change is because otherwise typedefs that typedef primitives `typedef int A` would not get highlighted (so in the example `A` would not get any highlightings.)

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65943

llvm-svn: 368291
2019-08-08 13:10:30 +00:00
Johan Vikstrom b865d5a425 [clangd] Added an early return from VisitMemberExpr in SemanticHighlighting if underlying MemberDecl is a CXXConversionDecl.
Summary:
Conversion operators contain invalid MemberLocs which caused SemanticHighlighting
to emit a lot of error logs in large files as they can occur fairly
often (for example converting StringRef to std string).
As the only thing happening was a lot of error logs being
emited there doesn't really seem to be any way to test this
(no erroneous tokens are added). But emiting as many logs as
were being emited is not wanted.

This also adds a test to guard against regressions for highlightings
disapearing from places where the conversion operators are used as their
behaviour differ from the other CXXMethodDecls.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65928

llvm-svn: 368287
2019-08-08 12:43:55 +00:00
Haojian Wu bdc022a695 [clangd] Don't include internal gtest header.
llvm-svn: 368283
2019-08-08 12:33:12 +00:00
Haojian Wu 34166ec80b [clangd] Remove a function accidently being added in rL368261.
llvm-svn: 368282
2019-08-08 12:19:01 +00:00
Haojian Wu 1c0c7ed6af [clangd] Correct the documentation, NFC.
llvm-svn: 368277
2019-08-08 10:58:16 +00:00
Johan Vikstrom 720d19b175 [clangd] Fix implicit template instatiations appearing as topLevelDecls.
Summary: The parser gives implicit template instantiations to the action's HandleTopLevelDecls callback. This makes semantic highlighting highlight these templated functions multiple times. Fixed by filtering on if a Decl is an implicit function/variable/class instantiation. Also added a testcase to semantic highlighting on this.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65510

llvm-svn: 368261
2019-08-08 07:21:06 +00:00
Diego Astiazaran d47be4da5a [clang-doc] Add second index for sections within info's content
This new index contains links to the main section of infos: Namespaces, Records, Functions, Enums, Members.
Also to each child function or enum.
Index is currently rendered on top of the info content, this will be fixed later with CSS.

Depends on D65690.

Differential Revision: https://reviews.llvm.org/D65030

llvm-svn: 368209
2019-08-07 21:04:52 +00:00
Diego Astiazaran 6ab28e8cba [clang-doc] Parallelize reducing phase
Reduce phase has been parallelized and a execution time was reduced by
60% with this.
The reading of bitcode (bitcode -> Info) was moved to this segment of
code parallelized so it now happens just before reducing.

Differential Revision: https://reviews.llvm.org/D65628

llvm-svn: 368206
2019-08-07 20:54:26 +00:00
Sam McCall 0e8dd4a80e Code completion should not ignore default parameters in functions.
Summary:
Inorder to display the default arguments we must process the
CK_Optional chunks of CodeCompletionString while creating the Signature.

We do not create placeholders for default arguments.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65866

llvm-svn: 368186
2019-08-07 16:52:21 +00:00
Johan Vikstrom 57ced1e155 [clangd] Added a TextMate theme parser to the vscode extension.
Summary:
Adds a TextMate parser module to the vscode extension. It parses a theme into an array of a pair of TextMate scopes and text colors.

Reviewers: hokein, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65738

llvm-svn: 368136
2019-08-07 08:48:52 +00:00
Diego Astiazaran 40fde90193 [clang-doc] Fix paths of js in import tags
HTML requires posix-style paths.

Differential Revision: https://reviews.llvm.org/D65827

llvm-svn: 368087
2019-08-06 20:59:14 +00:00
Sam McCall 957380714d [clangd] Unfold SourceLocation flattening from findNameLoc in preparation for adding more overloads. NFC
llvm-svn: 368083
2019-08-06 20:25:59 +00:00
Diego Astiazaran 7dfe0bc3c1 [clang-doc] Add index in each info html file
An index structure is created while generating the output file for each
info. This structure is parsed to JSON and written to a file in the
output directory. The html for the index is not rendered by clang-doc. A
Javascript file is included in the output directory, this will the JSON
file and insert HTML elements into the file.

Differential Revision: https://reviews.llvm.org/D65690

llvm-svn: 368070
2019-08-06 18:31:46 +00:00
Shaurya Gupta 8fbb6ce847 Fixed toHalfOpenFileRange assertion fail
Summary:
- Added new function that gets Expansion range with both ends in the same file.
- Fixes the crash at https://github.com/clangd/clangd/issues/113

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65754

llvm-svn: 368058
2019-08-06 17:01:12 +00:00
Ilya Biryukov 56bdb0c508 [clangd] Compute scopes eagerly in IncludeFixer
Summary:
Computing lazily leads to crashes. In particular, computing scopes may
produce diagnostics (from inside template instantiations) and we
currently do it when processing another diagnostic, which leads to
crashes.

Moreover, we remember and access 'Scope*' when computing scopes. This
might lead to invalid memory access if the Scope is deleted by the time
we run the delayed computation. We did not actually construct an example
when this happens, though.

From the VCS and review history, it seems the optimization was
introduced in the initial version without a mention of any performance
benchmarks justifying the performance gains. This led me to a
conclusion that the optimization was premature, so removing it to avoid
crashes seems like the right trade-off at that point.

Reviewers: sammccall

Reviewed By: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65796

llvm-svn: 368019
2019-08-06 11:37:50 +00:00
Diego Astiazaran 15e468e0d5 [clang-doc] Fix link generation
Before making a link to a reference it is required to check that the
reference has a path (eg. primitives won't have paths).
This was done by checking if the path was empty; that worked because
when generating paths the outdirectory was included, so if the path was
assigned it had that outdirectory at least.
The path generation was changed, it's now only the composite of the
namespaces without the outdirectory. So if the info is in the global
namespace the path would be empty and the old check wouldn't work as expected.
A new attribute has been added to the Reference struct that indicates if
the info's parent is the global namespace.
Paths generation now fails if the path is empty and if the info
is not in the global namespace.

Differential Revision: https://reviews.llvm.org/D64958

llvm-svn: 367958
2019-08-06 00:11:34 +00:00
Haojian Wu f25163498b [clangd] Add a callback mechanism for handling responses from client.
Summary:
The callback will be invoked in clangd when we receive a reply from the client.

This is a prerequisite of implementing a generic mechanism for chainable
refactorings (e.g. extract variable and rename), this would allow server to
trigger a new request to the LSP client after receiving a reply from the client.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65387

llvm-svn: 367845
2019-08-05 12:48:09 +00:00
Sam McCall 801d3304e9 [clangd] Expose -offset-encoding=utf-32, which has been implemented for ages
llvm-svn: 367812
2019-08-05 08:14:17 +00:00
Sam McCall 6b09e9c864 [clangd] Fix error message with incorrect TextDocumentcontentChangeEvent.rangeLength
llvm-svn: 367811
2019-08-05 08:14:13 +00:00
Fangrui Song d9b948b6eb Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC
F_{None,Text,Append} are kept for compatibility since r334221.

llvm-svn: 367800
2019-08-05 05:43:48 +00:00
Zinovy Nis 6d83ab0870 [clang-tidy] Add FixItHint for performance-noexcept-move-constructor
Differential Revision: https://reviews.llvm.org/D65104

llvm-svn: 367785
2019-08-04 13:32:39 +00:00
Diego Astiazaran 7900905f76 [clang-doc] Update documentation
HTML generator has been included in clang-tools-extra release notes.
clang-doc documentation file has been updated.

Differential Revision: https://reviews.llvm.org/D65622

llvm-svn: 367743
2019-08-03 02:18:06 +00:00
Diego Astiazaran 8fb7074d3b [clang-doc] Add flag to continue after mapping errors
The tool used to stop execution if there was an error in the mapping
phase. It will now show the error but continue with the files that were
mapped correctly if the flag is true.

Differential revision: https://reviews.llvm.org/D65627

llvm-svn: 367729
2019-08-02 22:02:36 +00:00
Nathan Huckleberry 6722923c38 [clang-tidy] Adding static analyzer check to list of clang-tidy checks
Summary:
Since clang-tidy supports use of the static analyzer there
should be documentation of how to invoke the static analyzer
checks.

Reviewers: JonasToth, aaron.ballman, NoQ, Szelethus

Reviewed By: aaron.ballman

Subscribers: nickdesaulniers, lebedev.ri, jfb, NoQ, Eugene.Zelenko, xazax.hun, baloghadamsoftware, a.sidorin, Szelethus, donat.nagy, dkrupp, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64454

llvm-svn: 367694
2019-08-02 17:18:31 +00:00
Ilya Biryukov 25082817eb [clangd] Fix a crash when presenting values for Hover
Summary:
We should pass the expression type, not a variable type when printing
the resulting value. Variable type may be different from what the
pretty-printing function expects, e.g. have references.

Reviewers: sammccall

Reviewed By: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65655

llvm-svn: 367687
2019-08-02 15:23:04 +00:00
Haojian Wu 13a81444cd [clangd][vscode] clang-format the the extension code.
Summary:
As we are going to grow the extension in the near future, it is time to
formalize the TS code format/style of our extension (although we'd lose the
history).

We use default options of clang-format:
- 80 max line length
- 2 space indent

Reviewers: ilya-biryukov, sammccall, jvikstrom

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65657

llvm-svn: 367684
2019-08-02 14:24:02 +00:00
Simon Pilgrim 4cfd015beb Fix "not all control paths return a value" warning. NFCI.
llvm-svn: 367678
2019-08-02 12:55:04 +00:00
Sam McCall ad66e95b0d [clangd] Remove bad assert: nothing relies on it, and the reasons it was true no longer hold.
llvm-svn: 367672
2019-08-02 10:39:46 +00:00
Sam McCall ac7864ec01 [clangd] Add new helpers to make tweak tests scale better. Convert most tests. NFC
Summary:
TweakTests.cpp has some pretty good helpers added for the first few
tweaks, but they have some limitations:
 - many assertion failures point at the wrong line
 - need lots of input/output tests, setup code is duplicated across both
 - local helpers make it hard to split the file as it grows

The new helpers in TweakTests.h are based on old ones (same operations)
but try to address these issues and generally make tests more terse
while improving error messages.

This patch converts everything except ExtractVariable (which is complex
and has changes in flight, so will be converted later).
It's LOC-neutral, despite not being able to get rid of the old helpers
until ExtractVariable is done.

Reviewers: ilya-biryukov

Subscribers: mgorny, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65525

llvm-svn: 367667
2019-08-02 09:12:39 +00:00
Harlan Haskins a02f85768d [clang-tools-extra] Adopt FileManager's error-returning APIs
The FileManager has been updated to return llvm::ErrorOr from getFile
and getDirectory, this commit updates all the callers of those APIs from
clang.

llvm-svn: 367617
2019-08-01 21:32:01 +00:00
Ilya Biryukov 2fe0a14b5a [clangd] Add missing braces to completion tests. NFC
llvm-svn: 367541
2019-08-01 11:05:06 +00:00
Johan Vikstrom e5b5742eed [clangd] Fix buildbot failure from ambigous ArrayRef ctor
llvm-svn: 367529
2019-08-01 09:08:41 +00:00
Johan Vikstrom c2653ef27c [clangd] Duplicate lines of semantic highlightings sent removed.
Summary: Added a class for diffing highlightings and removing duplicate lines. Integrated into the highlighting generation flow. Only works correctly if all tokens are on a single line. Also returns empty lines if the IDE should remove previous highlightings on a line.

Reviewers: hokein, sammccall, ilya-biryukov

Subscribers: MaskRay, jkorous, mgrang, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64475

llvm-svn: 367521
2019-08-01 08:08:44 +00:00
Sam McCall abe3c29a8c [clangd] Ignore semicolons, whitespace, and comments in SelectionTree.
Summary:
Whitespace and comments are a clear bugfix: selecting some
comments/space near a statement doesn't mean you're selecting the
surrounding block.

Semicolons are less obvious, but for similar reasons: these tokens
aren't actually claimed by any AST node (usually), so an AST-based model
like SelectionTree shouldn't take them into account.

Callers may still sometimes care about semis of course:
 - when the selection is an expr with a non-expr parent, selection of
   the semicolon indicates intent to select the statement.
 - when a statement with a trailing semi is selected, we need to know
   its range to ensure it can be removed.
SelectionTree may or may not play a role here, but these are separate questions
from its core function of describing which AST nodes were selected.

The mechanism here is the TokenBuffer from syntax-trees. We use it in a
fairly low-level way (just to get boundaries of raw spelled tokens). The
actual mapping of AST nodes to coordinates continues to use the (fairly
mature) SourceLocation based logic. TokenBuffer/Syntax trees
don't currently offer an alternative to getFileRange(), I think.

Reviewers: SureYeaah, kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65486

llvm-svn: 367453
2019-07-31 17:52:40 +00:00
Shaurya Gupta 8eb5ba583c [Clangd] NFC: Added FIXME in ExtractVariable tests
llvm-svn: 367406
2019-07-31 10:08:29 +00:00
JF Bastien e825b834ec [NFC] Remove LLVM_ALIGNAS
Summary: The minimum compilers support all have alignas, and we don't use LLVM_ALIGNAS anywhere anymore. This also removes an MSVC diagnostic which, according to the comment above, isn't relevant anymore.

Reviewers: rnk

Subscribers: mgorny, jkorous, dexonsmith, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D65458

llvm-svn: 367383
2019-07-31 03:22:08 +00:00
Jan Korous c32e10794d [clangd][NFC] Fix typo in comment
llvm-svn: 367361
2019-07-30 22:18:04 +00:00
Jan Korous 2ee6497e8f [clangd][NFC] Typo in comment
llvm-svn: 367354
2019-07-30 20:39:39 +00:00
Tom Roeder 61493df7c6 [clang-tidy] Fix the documentation for linuxkernel-must-use-errs.
Summary:
This changes ReleaseNotes.txt to have the first sentence of the full
documentation from linuxkernel-must-use-errs.rst.

This addresses a comment from the review of rL367071 in
https://reviews.llvm.org/D59963.

Reviewers: Eugene.Zelenko

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65343

llvm-svn: 367333
2019-07-30 16:49:28 +00:00
Haojian Wu debf4817f4 [clangd] Fix a regression in rL366996.
Summary: That patch made the tweak always annotate the whole file by accident.

Reviewers: jvikstrom

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65443

llvm-svn: 367313
2019-07-30 14:17:45 +00:00
Kadir Cetinkaya 38496d5bd9 [clangd] Ignore diags from builtin files
Summary:
This fixes a case where we show diagnostics on arbitrary lines, in an
internal codebase.

Open for ideas on unittesting this.

Reviewers: ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64863

llvm-svn: 367303
2019-07-30 10:26:51 +00:00
Diego Astiazaran dd7ee81ec3 [clang-doc] Fix expected output in tests
Removes conversion of html paths in output. These will always be in
posix-style paths.

Differential Revision: https://reviews.llvm.org/D65425

llvm-svn: 367279
2019-07-30 00:07:34 +00:00
Diego Astiazaran 6ad2151b59 [clang-doc] Fix failing tests on Windows
Tests on Windows were failing due to path separator differences.
Links in HTML should use posix-style paths.

Differential Revision: https://reviews.llvm.org/D65419

llvm-svn: 367264
2019-07-29 22:03:39 +00:00
Eric Fiselier a2a6f85366 [clang-tidy]: Google: new check 'google-upgrade-googletest-case'
Introduce a new check to upgrade user code based on API changes in Googletest.

The check finds uses of old Googletest APIs with "case" in their name and replaces them with the new APIs named with "suite".

Patch by Alex Strelnikov (strel@google.com)
Reviewed as D62977.

llvm-svn: 367263
2019-07-29 21:38:56 +00:00
Bjorn Pettersson f0f63cab7f [clangd] Fix NDEBUG build problem introduced by rL366698
Sprinkled some #ifndef NDEBUG in Selection.cpp to make
it possible to build with NDEBUG defined.

The problem was introduced in rL366698 when using dlog
for some debug printouts. The dlog macro expands to
DEBUG_WITH_TYPE, which isn't using it's arguments in
optimized builds (when NDEBUG is defined).

llvm-svn: 367178
2019-07-27 17:09:15 +00:00
Diego Astiazaran d6cdd98a25 [clang-format] Fix style of css file paths
CSS files included in HTML should have a path in posix style, it should
not be different for Windows.

Differential Revision: https://reviews.llvm.org/D65309

llvm-svn: 367137
2019-07-26 18:02:42 +00:00
Sam McCall 91e8eac73a [clangd] Support extraction of binary "subexpressions" like a + [[b + c]].
Summary:
These aren't formally subexpressions in C++, in this case + is left-associative.
However informally +, *, etc are usually (mathematically) associative and users
consider these subexpressions.

We detect these and in simple cases support extracting the partial expression.
As well as builtin associative operators, we assume that overloads of them
are associative and support those too.

Reviewers: SureYeaah

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65139

llvm-svn: 367121
2019-07-26 15:29:52 +00:00
Shaurya Gupta 76ba1cf1f1 [Clangd] Disable ExtractVariable for all types of assignments
Reviewers: sammccall, kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65332

llvm-svn: 367113
2019-07-26 14:08:27 +00:00
Sam McCall 7ee0867a85 [clangd] Fix background index not triggering on windows due to case mismatch.
Summary:
This isn't a general fix to all paths where we assume case-sensitivity, it's
a minimally-invasive fix targeting the llvm 9 branch.

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65320

llvm-svn: 367112
2019-07-26 14:07:11 +00:00
Diego Astiazaran 30ca2828a6 [clang-doc] Fix failing tests on Windows
Tests on Windows were failing due to path separator differences.
'/' was being used as separator in the expected output, paths in expected output are now changed to their native form before comparing them to the actual output.

Differential Revision: https://reviews.llvm.org/D65306

llvm-svn: 367074
2019-07-25 23:22:55 +00:00
Diego Astiazaran acd35f6c5e [clang-doc] Add option for user provided stylesheets
An option has been added to clang-doc to provide a list of css stylesheets that the user wants to use for the generated html docs.

Depends on D64539.

Differential Revision: https://reviews.llvm.org/D64938

llvm-svn: 367072
2019-07-25 22:46:40 +00:00
Tom Roeder fc8c65b2e1 [clang-tidy] Add a module for the Linux kernel.
Summary:
Now that clang is going to be able to build the Linux kernel again on
x86, and we have gen_compile_commands.py upstream for generating
compile_commands.json, clang-tidy can be used on the Linux kernel
source.

To that end, this commit adds a new clang-tidy module to be used for
checks specific to Linux kernel source. The Linux kernel follows its own
style of C, and it will be useful to separate those checks into their
own module.

This also adds an initial check that makes sure that return values from
the kernel error functions like PTR_ERR and ERR_PTR are checked. It also
makes sure that any functions that directly return values from these
functions are checked.

Subscribers: xazax.hun, gribozavr, Eugene.Zelenko, lebedev.ri, mgorny, jdoerfert, cfe-commits

Tags: #clang, #clang-tools-extra

Reviewers: aaron.ballman, alexfh, hokein, JonasToth

Differential Revision: https://reviews.llvm.org/D59963

llvm-svn: 367071
2019-07-25 22:32:50 +00:00
Diego Astiazaran db5d8e3db2 [clang-doc] Add stylesheet to generated html docs
A default css stylesheet is included for docs generated in html format.

Differential Revision: https://reviews.llvm.org/D64539

llvm-svn: 367056
2019-07-25 21:27:50 +00:00
Diego Astiazaran 64ca857004 [clang-doc] Fix output format of html
The children of a TagNode are rendered in the same line as the parent only if they are all TextNodes.
When children are not inline; two text nodes that are adjacent won't have a new line between them, each tag node is rendered in its own line.

Differential Revision: https://reviews.llvm.org/D65005

llvm-svn: 367050
2019-07-25 20:49:00 +00:00
Diego Astiazaran 597b3fd3a8 [clang-doc] Fix html entities in rendered text
Replace &, <, >, ", and ' with their corresponding html entities in text rendered
by HTML generator.

Differential Revision: https://reviews.llvm.org/D65107

llvm-svn: 367045
2019-07-25 20:14:45 +00:00
Haojian Wu 18fa729a39 [clangd] Fix the annotate tweak after rL366893
Summary:
After rL366893, the annoate tweak is not activated when we select the
whole file (the commonAncestor is TUDecl but we intend to return null).

This patch fixes this, and also avoid traversing the TUDecl.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65210

llvm-svn: 366996
2019-07-25 08:48:05 +00:00
Sam McCall 85d2fe7861 [clangd] Provide help text to users who run `clangd` in a terminal.
Reviewers: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65201

llvm-svn: 366992
2019-07-25 08:00:54 +00:00
Sam McCall 8faffec4e2 [clangd] Also accept flags from CLANGD_FLAGS variable.
This simplifies various workflows, particularly in debugging/development.
e.g. editors will tend to propagate flags, so you can run
`env CLANGD_FLAGS=-input-mirror-file=/tmp/mirror vim foo.cc` rather than
change the configuration in a persistent way.
(This also gives us a generic lever when we don't know how to customize
the flags in some particular LSP client).

While here, add a test for this and other startup logging, and fix a
couple of direct writes to errs() that should have been logs.

Differential Revision: https://reviews.llvm.org/D65153

llvm-svn: 366991
2019-07-25 07:54:48 +00:00
Sam McCall 9842310a2a [clangd] Add categories to help options, and only show clangd options.
Summary:
Restricting the categories prevents extra unwanted options from creeping into
help (D60663), and removes a bunch of noise from --help-hidden.

While here, remove `static` from the opts in favor of an anon namespace, to
reduce the noise level.

Reviewers: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65200

llvm-svn: 366900
2019-07-24 12:41:52 +00:00
Sam McCall bdc6b6e410 [clangd] SelectionTree treats TranslationUnitDecl (mostly) consistently with other containers.
Summary:
Previously TranslationUnitDecl would never be selected.
This means root() is never null, and returns a reference.

commonAncestor() is in principle never null also, but returning TUDecl
here requires tweaks to be careful not to traverse it (this was already
possible when selecting multiple top-level decls, and there are associated bugs!)
Instead, never allow commonAncestor() to return TUDecl, return null instead.

Reviewers: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65101

llvm-svn: 366893
2019-07-24 12:14:56 +00:00
Sam McCall 2ff40ca367 [clangd] Fix SelectionTree traversal of qualified types
Summary:
QualifiedTypeLoc isn't treated like a regular citizen by RecursiveASTVisitor.
This meant we weren't intercepting the traversal of its inner TypeLoc.

Most of the changes here are about exposing kind() so we can improve the
precision of our tests.

This should fix the issue raised in D65067.

Reviewers: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65100

llvm-svn: 366882
2019-07-24 09:39:11 +00:00
Sam McCall 6076788c5b [clangd] Reformat use of cl::opt: use unqualified name and don't bin-pack attributes. NFC
Reviewers: kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65154

llvm-svn: 366880
2019-07-24 09:33:27 +00:00
Haojian Wu ec4d8cdd59 [clangd] Bump vscode-clangd v0.0.16
CHANGELOG:
- detect C++ language based on some well-known file paths
- upgrade the lsp-client and lsp-server dependencies

llvm-svn: 366877
2019-07-24 08:14:29 +00:00
Haojian Wu 0e7bbb1122 [clangd] Update a stale comment, NFC.
llvm-svn: 366875
2019-07-24 07:57:25 +00:00
Haojian Wu f429ab60e6 [clangd] Implement "prepareRename"
Summary:
- "prepareRename" request is added in LSP v3.12.0
- also update the vscode-client dependency to pick-up the rename bug fix[1]

[1]: https://github.com/microsoft/vscode-languageserver-node/issues/447

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D63126

llvm-svn: 366873
2019-07-24 07:49:23 +00:00
Shaurya Gupta b0ed5bea88 [Clangd] Fixed ExtractVariable for certain types of Exprs
Summary:

- Modified ExtractVariable for extraction of MemberExpr, DeclRefExpr and Assignment Expr
- Removed extraction from label statements.
- Fixed unittests

Reviewers: sammccall, kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64717

llvm-svn: 366869
2019-07-24 05:42:55 +00:00
Sam McCall 4389cb9cf1 [clangd] Log version, cwd, args, and transport on startup. NFC
Reviewers: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65146

llvm-svn: 366811
2019-07-23 14:30:28 +00:00
Sam McCall 7fc8f415ea [clangd] Add dlog()s for SelectionTree, enabling -debug-only=SelectionTree.cpp
Summary:
SelectionTree is a RecursiveASTVisitor which processes getSourceRange() for
every node. This is a lot of surface area with the AST, as getSourceRange()
is specialized for *many* node types.
And the resulting SelectionTree depends on the source ranges of many
visited nodes, and the order of traversal.

Put together, this means we really need a traversal log to debug when we
get an unexpected SelectionTree. I've built this ad-hoc a few times, now
it's time to check it in.

Example output:
```
D[14:07:44.184] Computing selection for </usr/local/google/home/sammccall/test.cc:1:7, col:8>
D[14:07:44.184]  push: VarDecl const auto x = 42
D[14:07:44.184]   claimRange: </usr/local/google/home/sammccall/test.cc:1:12, col:13>
D[14:07:44.184]   push: NestedNameSpecifierLoc (empty NestedNameSpecifierLoc)
D[14:07:44.184]   pop: NestedNameSpecifierLoc (empty NestedNameSpecifierLoc)
D[14:07:44.184]   push: QualifiedTypeLoc const auto
D[14:07:44.184]   pop: QualifiedTypeLoc const auto
D[14:07:44.184]    claimRange: </usr/local/google/home/sammccall/test.cc:1:7, col:11>
D[14:07:44.184]    hit selection: </usr/local/google/home/sammccall/test.cc:1:7, col:8>
D[14:07:44.184]   skip: IntegerLiteral 42
D[14:07:44.184]    skipped range = </usr/local/google/home/sammccall/test.cc:1:16>
D[14:07:44.184]  pop: VarDecl const auto x = 42
D[14:07:44.184]   claimRange: </usr/local/google/home/sammccall/test.cc:1:1, col:18>
D[14:07:44.184]  skip: VarDecl int y = 43
D[14:07:44.184]   skipped range = </usr/local/google/home/sammccall/test.cc:2:1, col:9>
D[14:07:44.184] Built selection tree
TranslationUnitDecl
  VarDecl const auto x = 42
     .QualifiedTypeLoc const auto

```

Reviewers: hokein

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

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65073

llvm-svn: 366698
2019-07-22 15:55:53 +00:00
Aaron Ballman 5418be85e8 Update documentation for all CERT checks that correspond to a recommendation.
CERT removed their C++ secure coding recommendations from public view and so the links within that documentation are stale. This updates various pieces of documentation to make this more clear, and to help add substance where our docs deferred to CERT's wiki.

llvm-svn: 366687
2019-07-22 13:22:08 +00:00
Sam McCall 1df6be211e [clangd] Set buffer name for main file. NFCI
llvm-svn: 366675
2019-07-22 11:12:16 +00:00
Ilya Biryukov af5d3b02fb [clangd] Log input code of failed highlighting tests. NFC
llvm-svn: 366674
2019-07-22 10:05:11 +00:00
Ilya Biryukov 8bb8915d43 [clangd] Provide a way to publish highlightings in non-racy manner
Summary:
By exposing a callback that can guard code publishing results of
'onMainAST' callback in the same manner we guard diagnostics.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: javed.absar, MaskRay, jkorous, arphaman, kadircet, hokein, jvikstrom, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64985

llvm-svn: 366577
2019-07-19 13:51:01 +00:00
Kadir Cetinkaya 9dc0160d26 [clangd] Disable background-index on lit-tests by default
Summary:
Since background-index can perform disk writes, we don't want to turn
it on tests that won't clear it.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64990

llvm-svn: 366575
2019-07-19 13:40:30 +00:00
Shaurya Gupta 20a0e7caaf [Clangd] Fixed ExtractVariable test
llvm-svn: 366568
2019-07-19 12:11:04 +00:00
Shaurya Gupta 06841eab00 [Clangd] Fixed SelectionTree bug for macros
Summary:
Fixed SelectionTree bug for macros
- Fixed SelectionTree claimRange for macros and template instantiations
- Fixed SelectionTree unit tests
- Changed a breaking test in TweakTests

Reviewers: sammccall, kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64329

llvm-svn: 366566
2019-07-19 11:41:02 +00:00