`Transport.h` does not include `Features.inc`. However, since it is used in a
subdirectory, it cannot directly include the header as it is not available.
Include `Features.inc` in `ClangdLSPServer.h` prior to the inclusion of
`Transport.h` which will provide the interfaces in `ClangdMain.cpp` where the
symbol `newXPCTransport` will not be defined due to it being preprocessed away
since the configuration is not passed along to the initial inclusion.
llvm-svn: 358103
Summary:
Still some pieces to go here: unit tests for new SourceCode functionality and
a command-line flag to force utf-8 mode. But wanted to get early feedback.
Reviewers: hokein
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, jdoerfert, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D58275
llvm-svn: 357102
Summary:
The LSP clients cannot know clangd will not send diagnostic updates
for closed files, so we send them an empty list of diagnostics to
avoid showing stale diagnostics for closed files in the UI, e.g. in the
"Problems" pane of VSCode.
Fixes PR41217.
Reviewers: hokein
Reviewed By: hokein
Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D59757
llvm-svn: 356880
Summary:
LSP now reflects the declaration/definition distinction.
Language server changes:
- textDocument/definition now returns a definition if one is found, otherwise
the declaration. It no longer returns declaration + definition if they are
distinct.
- textDocument/declaration returns the best declaration we can find.
- For macros, the active macro definition is returned for both methods.
- For include directive, the top of the target file is returned for both.
There doesn't appear to be a discovery mechanism (we can't return everything to
clients that only know about definition), so this changes existing behavior.
In practice, it should greatly reduce the fraction of the time we need to show
the user a menu of options.
C++ API changes:
- findDefinitions is replaced by locateSymbolAt, which returns a
vector<LocatedSymbol> - one for each symbol under the cursor.
- this contains the preferred declaration, the definition (if found), and
the symbol name
This API enables some potentially-neat extensions, like swapping between decl
and def, and exposing the symbol name to the UI in the case of multiple symbols.
Reviewers: hokein
Subscribers: ilya-biryukov, javed.absar, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D57388
llvm-svn: 352864
Summary:
This patch adds some basic supports for clang-tidy configurations in clangd:
- clangd will respect .clang-tidy configurations for each file
- we don't aim to support all clang-tidy options in clangd, only a
small subset of condfigurations (options related to which checks will be
enabled) are supported.
- add a `clang-tidy-checks` CLI option that can override options from
.clang-tidy file
Reviewers: ilya-biryukov, sammccall
Reviewed By: sammccall
Subscribers: javed.absar, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D55256
llvm-svn: 351792
to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
Summary:
Only run completion when we were trigerred on '->' and '::', otherwise
send an error code in return.
To avoid automatically invoking completions in cases like 'a >^' or
'a ? b :^'.
Reviewers: hokein
Reviewed By: hokein
Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D55994
llvm-svn: 350304
New method returning symbol info for given source position.
Differential Revision: https://reviews.llvm.org/D54799
rdar://problem/46050281
llvm-svn: 347675
Summary:
Ownership and configuration:
The auto-index (background index) is maintained by ClangdServer, like Dynamic.
(This means ClangdServer will be able to enqueue preamble indexing in future).
For now it's enabled by a simple boolean flag in ClangdServer::Options, but
we probably want to eventually allow injecting the storage strategy.
New 'sync' command:
In order to meaningfully test the integration (not just unit-test components)
we need a way for tests to ensure the asynchronous index reads/writes occur
before a certain point.
Because these tests and assertions are few, I think exposing an explicit "sync"
command for use in tests is simpler than allowing threading to be completely
disabled in the background index (as we do for TUScheduler).
Bugs:
I fixed a couple of trivial bugs I found while testing, but there's one I can't.
JSONCompilationDatabase::getAllFiles() may return relative paths, and currently
we trigger an assertion that assumes they are absolute.
There's no efficient way to resolve them (you have to retrieve the corresponding
command and then resolve against its directory property). In general I think
this behavior is broken and we should fix it in JSONCompilationDatabase and
require CompilationDatabase::getAllFiles() to be absolute.
Reviewers: kadircet
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D54894
llvm-svn: 347567
Summary:
The new implementation is a GlobalCompilationDatabase that overlays a base.
Normally this is the directory-based CDB.
To preserve the behavior of compile_args_from=LSP, the base may be null.
The OverlayCDB is always present, and so the extensions to populate it
are always supported.
It also allows overriding the flags of the fallback command. This is
just unit-tested for now, but the plan is to expose this as an extension
on the initialize message. This addresses use cases like
https://github.com/thomasjo/atom-ide-cpp/issues/16
Reviewers: ilya-biryukov
Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53687
llvm-svn: 345970
Summary:
This was added in D34947 to support YCM, but YCM actually provides *all* args,
and this was never actually used.
Meanwhile, we grew another extension that allows specifying all args.
I did find one user of this extension: https://github.com/thomasjo/atom-ide-cpp.
I'll reach out, there are multiple good alternatives:
- compile_commands.txt can serve the same purpose as .clang_complete there
- we can add an extension to support setting the fallback command
Reviewers: ilya-biryukov
Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53641
llvm-svn: 345969
- align struct names/comments with LSP, remove redundant "clangd" prefixes.
- don't map config structs as Optional<> when their presence/absence
doesn't signal anything and all fields must have sensible "absent" values
- be more lax around parsing of 'any'-typed messages
llvm-svn: 345235
Summary:
It doesn't make much sense: setting them is not coupled to opening the file,
it's an asynchronous notification.
I don't think this is a breaking change - this behavior is hard to observe!
Reviewers: ilya-biryukov
Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53642
llvm-svn: 345231
Summary:
This information is strictly available in the log (you can find the original
call) but it makes the log easier to follow in practice.
Reviewers: kadircet
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D53647
llvm-svn: 345150
Summary:
The only way to actually set the directory is at initialize time,
so now CDB is lazy we can pass it to the constructor.
Reviewers: hokein
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53572
llvm-svn: 345031
Summary:
The CDB implementations used in open-source code are fast, and our private
slow CDB will soon do the relevant caching itself.
Simplifying the GlobalCDB layer in clangd is important to get auto-index
implemented at the right layer.
Reviewers: ioeric, ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53439
llvm-svn: 345024
Summary:
LSP is a slightly awkward map to C++ object lifetimes: the initialize request
is part of the protocol and provides information that doesn't change over the
lifetime of the server.
Until now, we handled this by initializing ClangdServer and ClangdLSPServer
right away, and making anything that can be set in the "initialize" request
mutable.
With this patch, we create ClangdLSPServer immediately, but defer creating
ClangdServer until "initialize". This opens the door to passing the relevant
initialize params in the constructor and storing them immutably.
(That change isn't actually done in this patch).
To make this safe, we have the MessageDispatcher enforce that the "initialize"
method is called before any other (as required by LSP). That way each method
handler can assume Server is initialized, as today.
As usual, while implementing this I found places where our test cases violated
the protocol.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53398
llvm-svn: 344741
Summary:
Most of its functionality is moved into ClangdLSPServer.
The decoupling between JSONRPCDispatcher, ProtocolCallbacks, ClangdLSPServer
was never real, and only served to obfuscate.
Some previous implicit/magic stuff is now explicit:
- the return type of LSP method calls are now in the signature
- no more reply() that gets the ID using global context magic
- arg tracing no longer relies on RequestArgs::stash context magic either
This is mostly refactoring, but some deliberate fixes while here:
- LSP method params are now by const reference
- notifications and calls are now distinct namespaces.
(some tests had protocol errors and needed updating)
- we now reply to calls we failed to decode
- outgoing calls use distinct IDs
A few error codes and message IDs changed in unimportant ways (see tests).
Reviewers: ioeric
Subscribers: mgorny, ilya-biryukov, javed.absar, MaskRay, jkorous, arphaman, jfb, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53387
llvm-svn: 344737
Summary:
This paves the way for alternative transports (mac XPC, maybe messagepack?),
and also generally improves layering: testing ClangdLSPServer becomes less of
a pipe dream, we split up the JSONOutput monolith, etc.
This isn't a final state, much of what remains in JSONRPCDispatcher can go away,
handlers can call reply() on the transport directly, JSONOutput can be renamed
to StreamLogger and removed, etc. But this patch is sprawling already.
The main observable change (see tests) is that hitting EOF on input is now an
error: the client should send the 'exit' notification.
This is defensible: the protocol doesn't spell this case out. Reproducing the
current behavior for all combinations of shutdown/exit/EOF clutters interfaces.
We can iterate on this if desired.
Reviewers: jkorous, ioeric, hokein
Subscribers: mgorny, ilya-biryukov, MaskRay, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53286
llvm-svn: 344672
Summary:
This paves the way for alternative transports (mac XPC, maybe messagepack?),
and also generally improves layering: testing ClangdLSPServer becomes less of
a pipe dream, we split up the JSONOutput monolith, etc.
This isn't a final state, much of what remains in JSONRPCDispatcher can go away,
handlers can call reply() on the transport directly, JSONOutput can be renamed
to StreamLogger and removed, etc. But this patch is sprawling already.
The main observable change (see tests) is that hitting EOF on input is now an
error: the client should send the 'exit' notification.
This is defensible: the protocol doesn't spell this case out. Reproducing the
current behavior for all combinations of shutdown/exit/EOF clutters interfaces.
We can iterate on this if desired.
Reviewers: jkorous, ioeric, hokein
Subscribers: mgorny, ilya-biryukov, MaskRay, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53286
llvm-svn: 344620
Summary:
I don't bother mirroring the full capabilities struct, just parse the
bits we care about. I'll send a new patch to use this approach elsewhere too.
Reviewers: kadircet
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D53213
llvm-svn: 344617
Summary:
The cancelable scopes are managed by JSONRPCDispatcher so that all Handlers
run in cancelable contexts.
(Previously ClangdServer did this, for code completion only).
Cancellation request processing is therefore also in JSONRPCDispatcher.
(Previously it was in ClangdLSPServer).
This doesn't actually make any new commands *respect* cancellation - they'd
need to check isCancelled() and bail out. But it opens the door to doing
this incrementally, and putting such logic in common machinery like TUScheduler.
I also rewrote the ClangdServer class/threading comments because I wanted to
add to it and I got carried away.
Reviewers: ilya-biryukov, kadircet
Subscribers: ioeric, MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D52004
llvm-svn: 342135
Summary:
Task is no longer exposed:
- task cancellation is hidden as a std::function
- task creation returns the new context directly
- checking is via free function only, with no way to avoid the context lookup
The implementation is essentially the same, but a bit terser as it's hidden.
isCancelled() is now safe to use outside any task (it returns false).
This will leave us free to sprinkle cancellation in e.g. TUScheduler without
needing elaborate test setup, and lets callers that don't cancel "just work".
Updated the docs to describe the new expected use pattern.
One thing I noticed: there's nothing async-specific about the cancellation.
Async tasks can be cancelled from any thread (typically the one that created
them), sync tasks can be cancelled from any *other* thread in the same way.
So the docs now refer to "long-running" tasks instead of async ones.
Updated usage in code complete, without any structural changes.
I didn't update all the names of the helpers in ClangdLSPServer (these will
likely be moved to JSONRPCDispatcher anyway).
Reviewers: ilya-biryukov, kadircet
Subscribers: ioeric, MaskRay, jkorous, arphaman, jfb, cfe-commits
Differential Revision: https://reviews.llvm.org/D51996
llvm-svn: 342130
client if the client supports this extension
This commit extends the 'textDocument/publishDiagnostics' notification sent from
Clangd to the client. When it's enabled, Clangd sends out the fixits associated
with the appropriate diagnostic in the body of the 'publishDiagnostics'
notification. The client can enable this extension by setting 'clangdFixSupport'
to true in the textDocument capabilities during initialization.
Differential Revision: https://reviews.llvm.org/D50415
llvm-svn: 339454
compilationDatabaseChanges in the 'workspace/didChangeConfiguration' request
This commit allows clangd to use an in-memory compilation database that's
controlled from the LSP client (-compile_args_from=lsp). It extends the
'workspace/didChangeConfiguration' request to allow the client to pass in a
compilation database subset that needs to be updated in the workspace.
Differential Revision: https://reviews.llvm.org/D49758
llvm-svn: 338597
Summary:
That way, as soon as the "initialize" is received by the server, it can start
parsing/indexing with a valid compilation database and not have to wait for a
an initial 'didChangeConfiguration' that might or might not happen.
Then, when the user changes configuration, a didChangeConfiguration can be sent.
Signed-off-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
Reviewers: malaperle
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D49833
llvm-svn: 338518
Summary:
An AST-based approach is used to retrieve the document symbols rather than an
in-memory index query. The index is not an ideal fit to achieve this because of
the file-centric query being done here whereas the index is suited for
project-wide queries. Document symbols also includes more symbols and need to
keep the order as seen in the file.
Signed-off-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
Subscribers: tomgr, ilya-biryukov, ioeric, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47846
llvm-svn: 336386
Summary:
Caching is now handled by ClangdLSPServer and hidden behind the
GlobalCompilationDatabase interface. This simplifies ClangdServer.
This change also removes the SkipCache flag from addDocument,
which is now obsolete.
No behavioral changes are intended, the clangd binary still caches the
compile commands on the first read.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: mgorny, ioeric, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D48068
llvm-svn: 334585
Summary:
The EINTR loop around getline was added to fix an issue with mac gdb, but seems
to loop infinitely in rare cases on linux where the parent editor exits (most
reports with VSCode).
I can't work out how to fix this in a portable way with std::istream, but the
C APIs have clearer contracts and LLVM has a RetryAfterSignal function for use
with them which seems battle-tested.
While here, clean up some inconsistency around \n in log messages (now
add it only after JSON payloads), and reduce the scope of the
long-message handling which was only really added to fight fuzzers.
Reviewers: malaperle, ilya-biryukov
Subscribers: klimek, ioeric, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47643
llvm-svn: 333993
Summary:
This is a basic implementation of the "workspace/symbol" request which is
used to find symbols by a string query. Since this is similar to code completion
in terms of result, this implementation reuses the "fuzzyFind" in order to get
matches. For now, the scoring algorithm is the same as code completion and
improvements could be done in the future.
The index model doesn't contain quite enough symbols for this to cover
common symbols like methods, enum class enumerators, functions in unamed
namespaces, etc. The index model will be augmented separately to achieve this.
Reviewers: sammccall, ilya-biryukov
Reviewed By: sammccall
Subscribers: jkorous, hokein, simark, sammccall, klimek, mgorny, ilya-biryukov, mgrang, jkorous-apple, ioeric, MaskRay, cfe-commits
Differential Revision: https://reviews.llvm.org/D44882
llvm-svn: 330637
Summary:
This patch moves the draft manager closer to the edge of Clangd, from
ClangdServer to ClangdLSPServer. This will make it easier to implement
incremental document sync, by making ClangdServer only deal with
complete documents.
As a result, DraftStore doesn't have to deal with versioning, and thus
its API can be simplified. It is replaced by a StringMap in
ClangdServer holding a current version number for each file.
Signed-off-by: Simon Marchi <simon.marchi@ericsson.com>
Subscribers: klimek, mgorny, ilya-biryukov, jkorous-apple, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D44408
llvm-svn: 327711
Context can do what Tagged was intended to support (snapshot filesystems),
and less intrusively.
getTaggedFileSystem() no longer needs a filename.
Cleanups while here:
- code-complete now returns errors as Expected, like other functions
- added an alias Callback<T> for the usual callback function type
llvm-svn: 327344
Summary:
The new implementation attaches notes to diagnostic message and shows
the original diagnostics in the message of the note.
Reviewers: hokein, ioeric, sammccall
Reviewed By: sammccall
Subscribers: klimek, mgorny, cfe-commits, jkorous-apple
Differential Revision: https://reviews.llvm.org/D44142
llvm-svn: 327282
Summary:
This subsumes most of the params to ClangdServer and ClangdLSPServer.
Adjacent changes:
- tests use a consistent set of options, except when testing specific options
- tests that previously used synchronous mode for convenience no longer do
- added a runAddDocument helper to SyncAPIs to mitigate the extra code
- rearranged main a bit to follow the structure of the options
Reviewers: ilya-biryukov
Subscribers: klimek, jkorous-apple, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D44088
llvm-svn: 326719
Ilya Biryukov