Commit Graph

363 Commits

Author SHA1 Message Date
Roman Lebedev 12b40745ab Revert "[Tooling] [1/1] Refactor FrontendActionFactory::create() to return std::unique_ptr<>"
This reverts commit rL326202

This broke gcc4.8 builds, compiler just segfaults:
http://lab.llvm.org:8011/builders/clang-atom-d525-fedora-rel/builds/14909
http://lab.llvm.org:8011/builders/clang-x86_64-linux-abi-test/builds/22673

llvm-svn: 326203
2018-02-27 15:54:41 +00:00
Roman Lebedev 6b56a11961 [Tooling] [1/1] Refactor FrontendActionFactory::create() to return std::unique_ptr<>
Summary:
I'm not sure whether there are any principal reasons why it returns raw owning pointer,
or it is just a old code that was not updated post-C++11.

I'm not too sure what testing i should do, because `check-all` is not error clean here for some reason,
but it does not //appear// asif those failures are related to these changes.

This is Clang-tools-extra part.
Clang part is D43779.

Reviewers: klimek, bkramer, alexfh, pcc

Reviewed By: alexfh

Subscribers: ioeric, jkorous-apple, cfe-commits

Tags: #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D43780

llvm-svn: 326202
2018-02-27 15:19:28 +00:00
Eric Liu 6c8e858551 [clangd] don't insert new includes if either original header or canonical header is already included.
Summary:
Changes:
o Store both the original header and the canonical header in LSP command.
o Also check that both original and canonical headers are not already included
by comparing both resolved header path and written literal includes.

This addresses the use case where private IWYU pragma is defined in a private
header while it would still be preferrable to include the private header, in the
internal implementation file. If we have seen that the priviate header is already
included, we don't try to insert the canonical include.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43510

llvm-svn: 326070
2018-02-26 08:32:13 +00:00
Kirill Bobyrev bcaf38051c [clangd] Address FIXME and fix comment
* Address a FIXME by warning the user that both -run-synchronously and -j X are
  passed.
* Fix a comment to suppress clang-tidy warning by passing the correct argument
  name.

Reviewers: ioeric

Subscribers: ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43671

llvm-svn: 326051
2018-02-25 07:21:16 +00:00
Sam McCall 091557d2a8 [clangd] BindWithForward -> Bind. NFC
llvm-svn: 325868
2018-02-23 07:54:17 +00:00
Eric Liu 51fed18342 [clangd] Extend textDocument/didChange to specify whether diagnostics should be generated.
Summary:
This would allow us to disable diagnostics when didChange is called but
diagnostics are not wanted (e.g. code completion).

Reviewers: sammccall

Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43634

llvm-svn: 325813
2018-02-22 18:40:39 +00:00
Simon Pilgrim cadaf755f3 Fix "not all control paths return a value" MSVC warning. NFCI.
llvm-svn: 325802
2018-02-22 16:12:27 +00:00
Simon Marchi 5178f924c4 [clangd] DidChangeConfiguration Notification
Summary:

Implementation of DidChangeConfiguration notification handling in
clangd.  This currently only supports changing one setting: the path of
the compilation database to be used for the current project.   In other
words, it is no longer necessary to restart clangd with a different
command line argument in order to change the compilation database.

Reviewers: malaperle, krasimir, bkramer, ilya-biryukov

Subscribers: jkorous-apple, ioeric, simark, klimek, ilya-biryukov, arphaman, rwols, cfe-commits

Differential Revision: https://reviews.llvm.org/D39571

Signed-off-by: Simon Marchi <simon.marchi@ericsson.com>
Signed-off-by: William Enright <william.enright@polymtl.ca>
llvm-svn: 325784
2018-02-22 14:00:39 +00:00
Haojian Wu b603a5e0e3 [clangd] Correct setting ignoreWarnings in CodeCompletion.
Summary:
We should set the flag before creating ComplierInstance -- when
CopmilerInstance gets initialized, it also initializes the DiagnosticsEngine
using the DiagnosticOptions.

This was hidden deeply -- as clang suppresses all diagnostics when we
hit the code-completion (but internally it does do unnecessary analysis stuff).

As a bonus point, this fix will optmize the completion speed -- clang won't do
any analysis (e.g. -Wunreachable-code, -Wthread-safety-analysisi) at all internally.

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: klimek, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D43569

llvm-svn: 325779
2018-02-22 13:35:01 +00:00
Sam McCall 568e17f1e6 [clangd] Allow embedders some control over when diagnostics are generated.
Summary:
Through the C++ API, we support for a given snapshot version:
 - Yes: make sure we generate diagnostics for exactly this version
 - Auto: generate eventually-consistent diagnostics for at least this version
 - No: don't generate diagnostics for this version
Eventually auto should be debounced for better UX.

Through LSP, we force diagnostics for initial load (bypassing future debouncing)
and all updates follow the "auto" policy.

This is complicated to implement under the CancellationFlag design, so
rewrote that part to just inspect the queue instead.

It turns out we never pass None to the diagnostics callback, so remove Optional
from the signature. The questionable behavior of not invoking the callback at
all if CppFile::rebuild fails is not changed.

Reviewers: ilya-biryukov

Subscribers: klimek, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D43518

llvm-svn: 325774
2018-02-22 13:11:12 +00:00
Eric Liu 02ce01f1e8 [clangd] Not collect include headers for dynamic index for now.
Summary:
The new behaviors introduced by this patch:
o When include collection is enabled, we always set IncludeHeader field in Symbol
even if it's the same as FileURI in decl.
o Disable include collection in FileIndex which is currently only used to build
dynamic index. We should revisit when we actually want to use FileIndex to global
index.
o Code-completion only uses IncludeHeader to insert headers but not FileURI in
CanonicalDeclaration. This ensures that inserted headers are always canonicalized.
Note that include insertion can still be triggered for symbols that are already
included if they are merged from dynamic index and static index, but we would
only use includes that are already canonicalized (e.g. from static index).

Reason for change:
Collecting header includes in dynamic index enables inserting includes for headers
that are not indexed but opened in the editor. Comparing to inserting includes for
symbols in global/static index, this is nice-to-have but would probably require
non-trivial amount of work to get right. For example:
o Currently it's not easy to fully support CanonicalIncludes in dynamic index, given the way
we run dynamic index.
o It's also harder to reason about the correctness of include canonicalization for dynamic index
(i.e. symbols in the current file/TU) than static index where symbols are collected
offline and sanity check is possible before shipping to production.
o We have less control/flexibility over symbol info in the dynamic index
(e.g. URIs, path normalization), which could be used to help make decision when inserting includes.

As header collection (especially canonicalization) is relatively new, and enabling
it for dynamic index would immediately affect current users with only dynamic
index support, I propose we disable it for dynamic index for now to avoid
compromising other hot features like code completion and only support it for
static index where include insertion would likely to bring more value.

Reviewers: ilya-biryukov, sammccall, hokein

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43550

llvm-svn: 325764
2018-02-22 10:14:05 +00:00
Eric Liu 352f92c8d6 [clangd] Update canonical header mapping for STL
llvm-svn: 325694
2018-02-21 16:17:25 +00:00
Marc-Andre Laperle 63a1098d73 [clangd] #include statements support for Open definition
Summary: ctrl-clicking on #include statements now opens the file being pointed by that statement.

Reviewers: malaperle, krasimir, bkramer, ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: jkorous-apple, ioeric, mgrang, klimek, ilya-biryukov, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D38639

llvm-svn: 325662
2018-02-21 02:39:08 +00:00
Simon Marchi 104117abfd [clangd] Fix formatting in XRefs.cpp
This is also to test my commit access.

llvm-svn: 325596
2018-02-20 16:57:47 +00:00
Sam McCall 3ebf760a92 [clangd] Dump stack on crash
llvm-svn: 325574
2018-02-20 11:46:39 +00:00
Eric Liu 709bde886d [clangd] Fixes for #include insertion.
Summary:
o Avoid inserting a header include into the header itself.
o Avoid inserting non-header files (by not indexing symbols in main
files at all).
o Canonicalize include paths for symbols in dynamic index.

Reviewers: sammccall, ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43462

llvm-svn: 325523
2018-02-19 18:48:44 +00:00
Ilya Biryukov 7fac6e92a7 [clangd] Do not reuse preamble if compile args changed
Reviewers: hokein, ioeric, sammccall, simark

Reviewed By: simark

Subscribers: klimek, jkorous-apple, cfe-commits, simark

Differential Revision: https://reviews.llvm.org/D43454

llvm-svn: 325522
2018-02-19 18:18:49 +00:00
Haojian Wu 07ea77e3bc [clangd] Correct the doc, password => Personal Access Token.
llvm-svn: 325503
2018-02-19 14:26:55 +00:00
Haojian Wu 359406fdf0 [clangd] Add brief instructions on how to make a release for vscode-clangd extension.
Reviewers: sammccall

Subscribers: klimek, ilya-biryukov, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D43455

llvm-svn: 325499
2018-02-19 14:01:52 +00:00
Sam McCall ab8e393f62 [clangd] Invert return value of fuzzyFind() (fix MemIndex's return value)
Have had way too many bugs by converting between "isComplete" and
"isIncomplete". LSP is immovable, so use isIncomplete everywhere.

llvm-svn: 325493
2018-02-19 13:04:41 +00:00
Ilya Biryukov 408657ce54 [clangd] Attach more information about Sema completion to traces
Reviewers: hokein, ioeric, sammccall

Reviewed By: sammccall

Subscribers: klimek, cfe-commits, jkorous-apple

Differential Revision: https://reviews.llvm.org/D43377

llvm-svn: 325491
2018-02-19 12:35:57 +00:00
Ilya Biryukov 842ee61b33 [clangd] Mark non-changing fields of CppFile as const. NFC
llvm-svn: 325486
2018-02-19 11:15:33 +00:00
Haojian Wu d3dd9cc869 [clangd] Bump vs-code clangd extension v0.0.3
Reviewers: sammccall

Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits, ioeric

Differential Revision: https://reviews.llvm.org/D43452

llvm-svn: 325484
2018-02-19 10:49:12 +00:00
Eric Liu bc023a15a0 [clangd] Try to fix build bot failure caused by r325343: escape regex string.
llvm-svn: 325482
2018-02-19 10:45:48 +00:00
Sam McCall c901c5db78 [clangd] Tracing: name worker threads, and enforce naming scheduled async tasks
Summary:
This has a bit of a blast radius, but I think there's enough value in "forcing"
us to give names to these async tasks for debugging. Guessing about what
multithreaded code is doing is so unfun...

The "file" param attached to the tasks may seem to be redundant with the thread
names, but note that thread names are truncated to 15 chars on linux!
We'll be lucky to get the whole basename...

Reviewers: ilya-biryukov

Subscribers: klimek, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D43388

llvm-svn: 325480
2018-02-19 09:56:28 +00:00
Sam McCall 8a3698ada0 [clangd] Add "clangd.trace" VSCode setting to enable tracing.
Summary:
Setting the CLANGD_TRACE environment variable directly is awkward with VSCode's
"reload from the command palette" workflow.

Reviewers: ilya-biryukov

Subscribers: klimek, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D43385

llvm-svn: 325477
2018-02-19 09:43:46 +00:00
Sam McCall aeb626920c [clangd] Fix use-after-free in SymbolYAML: strings are owned by yaml::Input!
Summary:
There are a few implementation options here - alternatives are either both
awkward and inefficient, or really inefficient.
This is at least potentially a hot path when used as a reducer for common
symbols.

(Also fix an unused-var that sneaked in)

Reviewers: ioeric

Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43381

llvm-svn: 325476
2018-02-19 09:31:26 +00:00
Heejin Ahn f4a29252fb [clangd] Fix link failures for Preprocessor::addCommentHandler
Summary:
D42640 adds calls to `Preprocessor::addCommentHandler` in
`unittests/clangd/SymbolCollectorTests.cpp` and
`clangd/global-symbol-builder/GlobalSymbolBuilderMain.cpp` but does not
link `clangLex` library. This causes undefined reference errors when
built with `-DBUILD_SHARED_LIBS=ON`.

Reviewers: ioeric

Subscribers: klimek, mgorny, ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43437

llvm-svn: 325458
2018-02-18 10:50:16 +00:00
Marc-Andre Laperle 373e30a264 [clangd] Rename some protocol field to lower case
Summary:
Also fixes a GCC compilation error.

Signed-off-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>

Subscribers: klimek, ilya-biryukov, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D43411

llvm-svn: 325409
2018-02-16 23:12:26 +00:00
Marc-Andre Laperle 3e618ed8f0 [clangd] Implement textDocument/hover
Summary: Implemention of textDocument/hover as described in LSP definition.

This patch adds a basic Hover implementation.  When hovering a variable,
function, method or namespace, clangd will return a text containing the
declaration's scope, as well as the declaration of the hovered entity.
For example, for a variable:

  Declared in class Foo::Bar

  int hello = 2

For macros, the macro definition is returned.

This patch doesn't include:

- markdown support (the client I use doesn't support it yet)
- range support (optional in the Hover response)
- comments associated to variables/functions/classes

They are kept as future work to keep this patch simpler.

I added tests in XRefsTests.cpp.  hover.test contains one simple
smoketest to make sure the feature works from a black box perspective.

Reviewers: malaperle, krasimir, bkramer, ilya-biryukov

Subscribers: sammccall, mgrang, klimek, rwols, ilya-biryukov, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D35894

Signed-off-by: Simon Marchi <simon.marchi@ericsson.com>
Signed-off-by: William Enright <william.enright@polymtl.ca>
llvm-svn: 325395
2018-02-16 21:38:15 +00:00
Sam McCall a90f257b35 [clangd] Include timestamps in log messages.
llvm-svn: 325357
2018-02-16 16:41:42 +00:00
Eric Liu e44533b7f1 [clangd] remove redundant ';' introduced in r325343
llvm-svn: 325346
2018-02-16 14:47:08 +00:00
Eric Liu c5105f9e3c [clangd] collect symbol #include & insert #include in global code completion.
Summary:
o Collect suitable #include paths for index symbols. This also does smart mapping
for STL symbols and IWYU pragma (code borrowed from include-fixer).
o For global code completion, add a command for inserting new #include in each code
completion item.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: klimek, mgorny, ilya-biryukov, jkorous-apple, hintonda, cfe-commits

Differential Revision: https://reviews.llvm.org/D42640

llvm-svn: 325343
2018-02-16 14:15:55 +00:00
Ilya Biryukov 7d60d20d57 [clangd] Assert path is absolute when assigning to URIForFile.
Summary:
The assertion will point directly to misbehaving code, so that
debugging related problems (like the one fixed by r325029) is easier.

Reviewers: hokein, ioeric, sammccall

Reviewed By: sammccall

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43246

llvm-svn: 325337
2018-02-16 12:20:47 +00:00
Ilya Biryukov bdbf49aa45 [clangd] Create trace::Span when running ASTCallback
llvm-svn: 325260
2018-02-15 16:24:34 +00:00
Ilya Biryukov 23bc73b626 [clangd] Enable snippet completion based on client capabilities.
Summary: And remove -enable-snippets flag.

Reviewers: hokein, ioeric, sammccall

Reviewed By: ioeric

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43229

llvm-svn: 325242
2018-02-15 14:32:57 +00:00
Sam McCall 892ea68a82 [clangd] Fix make_unique ambiguity, NFC
llvm-svn: 325239
2018-02-15 14:16:17 +00:00
Ilya Biryukov 2c5e8e820b [clangd] Make functions of ClangdServer callback-based
Summary:
As a consequence, all LSP operations are now handled asynchronously,
i.e. they never block the main processing thread. However, if
-run-synchronously flag is specified, clangd still runs everything on
the main thread.

Reviewers: sammccall, ioeric, hokein

Reviewed By: sammccall, ioeric

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43227

llvm-svn: 325233
2018-02-15 13:15:47 +00:00
Sam McCall 7929d006d7 [clangd] Fix tracing now that spans lifetimes can overlap on a thread.
Summary:
The chrome trace viewer requires events within a thread to strictly nest.
So we need to record the lifetime of the Span objects, not the contexts.

But we still want to show the relationship between spans where a context crosses
threads, so do this with flow events (i.e. arrows).

Before: https://photos.app.goo.gl/q4Dd9u9xtelaXk1v1
After: https://photos.app.goo.gl/5RNLmAMLZR3unvY83

(This could stand some further improvement, in particular I think we want a
container span whenever we schedule work on a thread. But that's another patch)

Reviewers: ioeric

Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43272

llvm-svn: 325220
2018-02-15 08:40:54 +00:00
Ilya Biryukov 7beea3ab73 [clangd] Explicitly initialize all primitive fields in Protocol.h
Summary:
Some of the existing structs had primimtive fields that were
not explicitly initialized on construction.
After this commit every struct consistently sets a defined value for
every field when default-initialized.

Reviewers: hokein, ioeric, sammccall

Reviewed By: sammccall

Subscribers: klimek, cfe-commits, jkorous-apple

Differential Revision: https://reviews.llvm.org/D43230

llvm-svn: 325113
2018-02-14 10:52:04 +00:00
Sam McCall ed2717ad33 [clangd] Configure clangd tracing with CLANGD_TRACE env instead of -trace flag
llvm-svn: 325097
2018-02-14 03:20:07 +00:00
Ilya Biryukov 18c0247852 [clangd] Fixed findDefinitions to always return absolute paths.
Relative paths could be returned in some cases, e.g. when relative
path is used in compilation arguments. This led to crash when trying
to convert the path to URI.

llvm-svn: 325029
2018-02-13 17:47:16 +00:00
Ilya Biryukov a9cf311d5b [clangd] Log if CWD could not be changed. NFC.
llvm-svn: 325024
2018-02-13 17:15:06 +00:00
Haojian Wu 92e0bb5c95 [clangd] Remove an already-done FIXME, NFC
llvm-svn: 324993
2018-02-13 09:56:45 +00:00
Haojian Wu dc02a3d943 [clangd] SymbolLocation only covers symbol name.
Summary:
* Change the offset range to half-open, [start, end).
* Fix a few fixmes.

Reviewers: sammccall

Subscribers: klimek, ilya-biryukov, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D43182

llvm-svn: 324992
2018-02-13 09:53:50 +00:00
Sam McCall 0bb24cd4fa [clangd] Stop exposing Futures from ClangdServer operations.
Summary:
LSP has asynchronous semantics, being able to block on an async operation
completing is unneccesary and leads to tighter coupling with the threading.

In practice only tests depend on this, so we add a general-purpose "block until
idle" function to the scheduler which will work for all operations.

To get this working, fix a latent condition-variable bug in ASTWorker, and make
AsyncTaskRunner const-correct.

Reviewers: ilya-biryukov

Subscribers: klimek, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D43127

llvm-svn: 324990
2018-02-13 08:59:23 +00:00
Ilya Biryukov 2d4cdacd26 [clangd] Log all ignored diagnostics.
Summary:
To aid debugging failures and crashes.
Only part of ignored diagnostics was logged before, now we log all of
them.

Reviewers: ioeric, hokein, sammccall

Reviewed By: hokein

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43123

llvm-svn: 324888
2018-02-12 12:48:51 +00:00
Ilya Biryukov cd5eb00e8b [clangd] Remove codeComplete that returns std::future<>
Summary:
It was deprecated and callback version and is used everywhere.
Only changes to the testing code were needed.

Reviewers: hokein, ioeric, sammccall

Reviewed By: sammccall

Subscribers: mgorny, klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43068

llvm-svn: 324883
2018-02-12 11:37:28 +00:00
Sam McCall 6003951c66 [clangd] Collect definitions when indexing.
Within a TU:
 - as now, collect a declaration from the first occurrence of a symbol
   (taking clang's canonical declaration)
 - when we first see a definition occurrence, copy the symbol and add it
Across TUs/sources:
 - mergeSymbol in Merge.h is responsible for combining matching Symbols.
   This covers dynamic/static merges and cross-TU merges in the static index.
 - it prefers declarations from Symbols that have a definition.
 - GlobalSymbolBuilderMain is modified to use mergeSymbol as a reduce step.
Random cleanups (can be pulled out):
 - SymbolFromYAML -> SymbolsFromYAML, new singular SymbolFromYAML added
 - avoid uninit'd SymbolLocations. Add an idiomatic way to check "absent".
 - CanonicalDeclaration (as well as Definition) are mapped as optional in YAML.
 - added operator<< for Symbol & SymbolLocation, for debugging

Reviewers: ioeric, hokein

Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D42942

llvm-svn: 324735
2018-02-09 14:42:01 +00:00
Ilya Biryukov b6ad25cd4c [clangd] Fix crash when CompilerInvocation can't be created.
Summary:
This can happen if the CompileCommand provided by compilation database
is malformed.

Reviewers: hokein, ioeric, sammccall

Reviewed By: sammccall

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43122

llvm-svn: 324732
2018-02-09 13:51:57 +00:00