Commit Graph

1425 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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