Commit Graph

48 Commits

Author SHA1 Message Date
Sam McCall 98775c5055 [clangd] Split CodeComplete into a separate file. NFC
Summary: Shared details of ClangdUnit and CodeComplete moved to a new Compiler file.

Reviewers: ilya-biryukov

Subscribers: klimek, mgorny, cfe-commits

Differential Revision: https://reviews.llvm.org/D40719

llvm-svn: 319655
2017-12-04 13:49:59 +00:00
Sam McCall 9fbecd5b0d [clangd] Filter completion results by fuzzy-matching identifiers.
Summary:
This allows us to limit the number of results we return and still allow them
to be surfaced by refining a query (D39852).

The initial algorithm is very conservative - it accepts a completion if the
filter is any case-insensitive sub-sequence. It does not attempt to rank items
based on match quality.

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D39882

llvm-svn: 319552
2017-12-01 16:35:50 +00:00
Sam McCall 318fbeb972 [clangd] Logger implicitly adds newline
llvm-svn: 319497
2017-11-30 23:21:34 +00:00
Sam McCall fae3b02520 [clangd] Log file compile commands
llvm-svn: 319496
2017-11-30 23:16:23 +00:00
Simon Pilgrim 116e3b3ca0 Fix MSVC double-float implicit truncation warning. NFCI
llvm-svn: 318961
2017-11-24 18:18:42 +00:00
Ilya Biryukov 2660cc96dd [clangd] Ensure preamble outlives the AST
Summary:
In-memory preambles will not be copied anymore, so we need to make
sure they outlive the AST.

Reviewers: bkramer, sammccall, klimek

Reviewed By: sammccall

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D40301

llvm-svn: 318944
2017-11-24 13:04:21 +00:00
Sam McCall 9cfd9c9a9b [clangd] Tracing improvements
Summary:
[clangd] Tracing improvements

Compose JSON using JSONExpr
Allow attaching metadata to spans (and avoid it if tracing is off)
Attach IDs and responses of JSON RPCs to their spans

The downside is that large responses make the trace viewer sluggish.
We should make our responses less huge :-) Or fix trace viewer.

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D40132

llvm-svn: 318928
2017-11-23 17:12:04 +00:00
Sam McCall b8d548a3de [clangd] Make completion scores use 0-1 floats internally.
Summary:
This scale is much easier to mix with other signals, such as fuzzy match strength.
Mostly NFC, but it does reorder some low-priority items that get folded together at a score of 0 (see completion-qualifiers.test).
Removed the exact sortText from the testcases, because it's the ranking that we want to test.

Reviewers: hokein

Subscribers: ilya-biryukov, cfe-commits

Differential Revision: https://reviews.llvm.org/D40089

llvm-svn: 318927
2017-11-23 17:09:04 +00:00
Sam McCall adccab64f2 [clangd] Drop impossible completions (unavailable or inaccessible)
Summary: (There must be some reason why D38077 didn't just do this, but I don't get it!)

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D39836

llvm-svn: 318925
2017-11-23 16:58:22 +00:00
Ilya Biryukov 11a0252888 [clangd] Release the old preamble before building a new one.
llvm-svn: 318544
2017-11-17 19:05:56 +00:00
Ilya Biryukov e9eb7f0cb8 [clangd] Use in-memory preambles in clangd.
Reviewers: klimek, bkramer, sammccall

Reviewed By: sammccall

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D39843

llvm-svn: 318412
2017-11-16 16:25:18 +00:00
Sam McCall a40371bcb6 [clangd] Support returning a limited number of completion results.
Summary:
All results are scored, we only process CodeCompletionStrings for the winners.
We now return CompletionList rather than CompletionItem[] (both are valid).
sortText is now based on CodeCompletionResult::orderedName (mostly the same).

This is the first clangd-only completion option, so plumbing changed.
It requires a small clangd patch (exposing CodeCompletionResult::orderedName).

(This can't usefully be enabled yet: we don't support server-side filtering)

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D39852

llvm-svn: 318287
2017-11-15 09:16:29 +00:00
Haojian Wu 345099ca19 [clangd] Add rename support.
Summary:
Make clangd handle "textDocument/rename" request. The rename
functionality comes from the "local-rename" sub-tool of clang-refactor.

Currently clangd only supports local rename (only symbol occurrences in
the main file will be renamed).

Reviewers: sammccall, ilya-biryukov

Reviewed By: sammccall

Subscribers: cfe-commits, ioeric, arphaman, mgorny

Differential Revision: https://reviews.llvm.org/D39676

llvm-svn: 317780
2017-11-09 11:30:04 +00:00
Sam McCall c78ccbdefb [clangd] Sort completion results.
Summary:
This is (probably) not required by LSP, but at least one buggy client wants it.
It also simplifies some tests - changed a few completion tests to use -pretty.

Reviewers: hokein, malaperle

Subscribers: ilya-biryukov, cfe-commits

Differential Revision: https://reviews.llvm.org/D39738

llvm-svn: 317670
2017-11-08 07:44:12 +00:00
Marc-Andre Laperle ba070108a6 [clangd] Fix opening declarations located in non-preamble inclusion
Summary:
When an inclusion is not processed as part of the preamble, its path is
not made into an absolute path as part of the precompiled header code
(adjustFilenameForRelocatableAST in ASTWriter.cpp). Because of this,
when we convert a Decl location to retrieve the file name with
FileEntry->getName(), it is possible for this path to be relative.
Instead, we should try to use tryGetRealPathName first which returns
an absolute path.

Fixes bug 35217.

Reviewers: sammccall, ilya-biryukov, rwols, Nebiroth

Reviewed By: sammccall

Subscribers: cfe-commits, ilya-biryukov

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D39705

llvm-svn: 317585
2017-11-07 16:16:45 +00:00
Sam McCall 8567cb3720 Performance tracing facility for clangd.
Summary:
This lets you visualize clangd's activity on different threads over time,
and understand critical paths of requests and object lifetimes.
The data produced can be visualized in Chrome (at chrome://tracing), or
in a standalone copy of catapult (http://github.com/catapult-project/catapult)

This patch consists of:
 - a command line flag "-trace" that causes clangd to emit JSON trace data
 - an API (in Trace.h) allowing clangd code to easily add events to the stream
 - several initial uses of this API to capture JSON-RPC requests, builds, logs

Example result: https://photos.app.goo.gl/12L9swaz5REGQ1rm1

Caveats:
 - JSON serialization is ad-hoc (isn't it everywhere?) so the API is
   limited to naming events rather than attaching arbitrary metadata.
   I'd like to fix this (I think we could use a JSON-object abstraction).
 - The recording is very naive: events are written immediately by
   locking a mutex. Contention on the mutex might disturb performance.
 - For now it just traces instants or spans on the current thread.
   There are other things that make sense to show (cross-thread flows,
   non-thread resources such as ASTs). But we have to start somewhere.

Reviewers: ioeric, ilya-biryukov

Subscribers: cfe-commits, mgorny

Differential Revision: https://reviews.llvm.org/D39086

llvm-svn: 317193
2017-11-02 09:21:51 +00:00
Simon Pilgrim 948c0bcbd6 Add LLVM_FALLTHROUGH to silence warning. NFCI.
llvm-svn: 317083
2017-11-01 09:22:03 +00:00
Benjamin Kramer 5349eedfdd [clangd] Fix clang-tidy warnings.
No functionality change intended.

llvm-svn: 316832
2017-10-28 17:32:56 +00:00
Ilya Biryukov b080cb155b [clangd] Allow to pass code completion opts to ClangdServer.
Reviewers: bkramer, krasimir, sammccall

Reviewed By: krasimir

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D38731

llvm-svn: 316327
2017-10-23 14:46:48 +00:00
Ilya Biryukov 01e3bf8afd [clangd] Report proper kinds for 'Keyword' and 'Snippet' completion items.
Reviewers: rwols, malaperle, krasimir, bkramer, sammccall

Reviewed By: rwols, sammccall

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D38720

llvm-svn: 316311
2017-10-23 06:06:21 +00:00
Ilya Biryukov 98a1fd7f96 [clangd] Use UniqueFunction for deferred computations.
Previsouly, `std::future` that were results of
`std::async(std::launch::deferred, ...` were used.

llvm-svn: 315325
2017-10-10 16:12:54 +00:00
Simon Pilgrim a3aa724fb7 Fix signed/unsigned warning
llvm-svn: 315149
2017-10-07 12:24:10 +00:00
Ilya Biryukov d9bdfe0578 [clangd] Add textDocument/signatureHelp
Summary:
Makes clangd respond to a client's "textDocument/signatureHelp" request by
presenting function/method overloads.

Patch by Raoul Wols.

Reviewers: bkramer, ilya-biryukov, krasimir

Reviewed By: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D38048

llvm-svn: 315055
2017-10-06 11:54:17 +00:00
Ilya Biryukov 686ff9a880 [clangd] Skip informative qualifier chunks.
Summary:
Completion results look much nicer without them.
Informative qualifiers are stored for every method from a base class, even when
calling those methods does not require any qualifiers. For example,
    struct Foo { int foo(); };
    struct Bar : Foo { };
    void test() { Bar(). // Completion item label was 'Foo::foo' before,
                         // but inserted text was simply 'foo'.
                         // We now simply show 'foo' in completion item label.

They effectively cluttered the completion list without providing much value.

Reviewers: bkramer, krasimir, rwols

Reviewed By: rwols

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D38083

llvm-svn: 314445
2017-09-28 18:39:59 +00:00
Ilya Biryukov 77f61badf4 [clangd] Put inacessible items to the end of completion list.
Reviewers: bkramer, krasimir

Reviewed By: krasimir

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D38077

llvm-svn: 313759
2017-09-20 15:09:14 +00:00
Ilya Biryukov 83ca8a2b71 [clangd] Run clang-format on ClangdUnit.cpp. NFC.
llvm-svn: 313749
2017-09-20 10:46:58 +00:00
Ilya Biryukov e5128f7e91 [clangd] Introduced Logger interface.
Summary: This fixes a bunch of logging-related FIXMEs.

Reviewers: bkramer, krasimir, malaperle

Reviewed By: malaperle

Subscribers: malaperle, klimek, cfe-commits, mgorny

Differential Revision: https://reviews.llvm.org/D37972

llvm-svn: 313730
2017-09-20 07:24:15 +00:00
Ilya Biryukov b33c15741b [clangd] Add support for snippet completions
Enhances CompletionItemsCollector in such a way that snippet
completions can be presented to the client. Enable snippet completion
items by specifying -enable-snippets while invoking the clangd
executable.

See: https://github.com/Microsoft/language-server-protocol/blob/master/protocol.md#completion-request
See: https://github.com/Microsoft/vscode/blob/master/src/vs/editor/contrib/snippet/browser/snippet.md

Patch by Raoul Wols.

llvm-svn: 313029
2017-09-12 13:57:14 +00:00
Ilya Biryukov c5ad35fb23 [clangd] Fixed a data race.
Summary:
Calling addDocument after removeDocument could have resulted in an
invalid program state (AST and Preamble for the valid document could
have been incorrectly removed).
This commit also includes an improved CppFile::cancelRebuild
implementation that allows to cancel reparse without waiting for
ongoing rebuild to finish.

Reviewers: krasimir, bkramer, klimek

Reviewed By: bkramer

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D36397

llvm-svn: 310818
2017-08-14 08:17:24 +00:00
Ilya Biryukov 574b753bfd [clangd] Run clang-format on all clangd sources. NFC.
llvm-svn: 309801
2017-08-02 09:08:39 +00:00
Ilya Biryukov 6e1f3b1c90 [clangd] Fix more MSVC compilation failures.
It turns out MSVC does not allow non-copyable classes in std::future
and std::promise template arguments.

llvm-svn: 309720
2017-08-01 18:27:58 +00:00
Ilya Biryukov 02d5870de3 [clangd] Rewrote AST and Preamble management.
Summary: The new implementation allows code completion that never waits for AST.

Reviewers: bkramer, krasimir, klimek

Reviewed By: bkramer

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D36133

llvm-svn: 309696
2017-08-01 15:51:38 +00:00
Ilya Biryukov de46274d7b [clangd] Don't reverse priorities of completion items.
Summary: Current algorithm incorrectly provides completion results in a reverse order.

Reviewers: krasimir, bkramer

Reviewed By: krasimir

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D35950

llvm-svn: 309295
2017-07-27 17:43:07 +00:00
Krasimir Georgiev e4130d52da [clangd] Reuse compile commands during reparse
Summary:
Previously we always queried the compilation database and discarded the results
if the file was already opened.

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D35825

llvm-svn: 308970
2017-07-25 11:37:43 +00:00
Ilya Biryukov 04db368a3f [clangd] Replace ASTUnit with manual AST management.
Summary:
This refactoring does not aim to introduce any significant changes to
the behaviour of clangd to keep the change as simple as possible.

Reviewers: klimek, krasimir, bkramer

Reviewed By: krasimir

Subscribers: malaperle, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D35406

llvm-svn: 308738
2017-07-21 13:29:29 +00:00
Ilya Biryukov 4203d2adcc [clangd] Check failure of Lexer::getRawToken in GoToDeclaration.
There was an access to unitialized memory because it wasn't checked.

llvm-svn: 306705
2017-06-29 17:11:32 +00:00
Kirill Bobyrev 4621387d9d [clangd] Cleanup ClangdUnit.cpp, update docs; NFC
* Enforce 80 characters limit where appropriate
* Use slightly more descriptive names for searched locations
* Update docs to reflect D34269, which adds "Go To Declaration" functionality

llvm-svn: 306598
2017-06-28 20:57:28 +00:00
Marc-Andre Laperle 2cbf03728a [clangd] Add "Go to Declaration" functionality
Summary: This change allows to navigate to most identifiers' declarations in code. This is a first step towards implementing "Go to Definition". It reuses clangIndex in order to detect which occurrences corresponds to the position requested. The occurrences' Decls are then used to generate locations suitable for navigating to the declarations.

Reviewers: krasimir, bkramer, ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: cfe-commits, mgorny

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D34269

llvm-svn: 306558
2017-06-28 16:12:10 +00:00
Ilya Biryukov a46f7a9bf4 [clangd] Allow to override resource dir in ClangdServer.
Reviewers: bkramer, krasimir, klimek

Reviewed By: klimek

Subscribers: klimek, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D34470

llvm-svn: 306530
2017-06-28 10:34:50 +00:00
Krasimir Georgiev a1de3c91e5 [clangd] Add priority to completion item sort text
Summary:
This patch adds the priority of a completion item to the sort text of the
returned LSP result.

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D34137

llvm-svn: 305454
2017-06-15 09:11:57 +00:00
Argyrios Kyrtzidis 783e4c2e32 [clangd] Update for ASTUnit API change.
llvm-svn: 305046
2017-06-09 02:04:19 +00:00
Krasimir Georgiev e6035a51f7 [clangd] Add parameter and return type information to completion results
Summary:
This patch adds information about the parameters and return types of completion
candidates.
Previously, for the following code:
```
struct S {
  int func(int a, double b) const;
};
```
the completer would only return the label of the candidate `func`.
Now it will also return the return type `int` and will format the label for the
candidate as `func(int a, double b) const`.

Reviewers: bkramer, ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D34033

llvm-svn: 304980
2017-06-08 15:11:51 +00:00
Ilya Biryukov 0f62ed2bbe [clangd] Allow to use vfs::FileSystem for file accesses.
Summary:
Custom vfs::FileSystem is currently used for unit tests.
This revision depends on https://reviews.llvm.org/D33397.

Reviewers: bkramer, krasimir

Reviewed By: bkramer, krasimir

Subscribers: klimek, cfe-commits, mgorny

Differential Revision: https://reviews.llvm.org/D33416

llvm-svn: 303977
2017-05-26 12:26:51 +00:00
Ilya Biryukov f01af686a2 [clangd] Replaced WorkerRequest with std::function...
Summary:
And implemented a helper function to dump an AST of a file for
testing/debugging purposes.

Reviewers: bkramer, krasimir

Reviewed By: krasimir

Subscribers: klimek, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D33415

llvm-svn: 303634
2017-05-23 13:42:59 +00:00
Krasimir Georgiev d814533851 [clangd] Switch to incomplete translation units
Summary: This speeds up code completion. All the cool kids (ycmd) are doing it.

Reviewers: bkramer, ilya-biryukov

Reviewed By: bkramer

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D33350

llvm-svn: 303547
2017-05-22 12:49:08 +00:00
Ilya Biryukov 38d79774d0 Restored r303067 and fixed failing test.
Summary:
This commit restores r303067(reverted by r303094) and fixes the 'formatting.test'
failure.
The failure is due to destructors of `ClangdLSPServer`'s fields(`FixItsMap` and
`FixItsMutex`) being called before destructor of `Server`. It led to the worker
thread calling `consumeDiagnostics` after `FixItsMutex` and `FixItsMap`
destructors were called.
Also, clangd is now run with '-run-synchronously' flag in 'formatting.test'.

Reviewers: bkramer, krasimir

Reviewed By: krasimir

Subscribers: mgorny, cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D33233

llvm-svn: 303151
2017-05-16 09:38:59 +00:00
Adam Nemet 076047b4d9 Revert "[ClangD] Refactor clangd into separate components"
This reverts commit r303067.

Caused http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/34305/

And even after Simon's fix there is still a test failure.

llvm-svn: 303094
2017-05-15 18:14:35 +00:00
Ilya Biryukov 96a13635f5 [ClangD] Refactor clangd into separate components
Summary: Major refactoring to split LSP implementation, Clang API calls and threading(mostly synchronization)

Reviewers: bkramer, krasimir

Reviewed By: bkramer

Subscribers: cfe-commits, mgorny, klimek

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D33047

llvm-svn: 303067
2017-05-15 14:17:35 +00:00