Commit Graph

132 Commits

Author SHA1 Message Date
Eric Liu dd66277c36 [clangd] Suggest adding missing includes for incomplete type diagnostics.
Summary:
This enables clangd to intercept compiler diagnostics and attach fixes (e.g. by
querying index). This patch adds missing includes for incomplete types e.g.
member access into class with only forward declaration. This would allow adding
missing includes for user-typed symbol names that are missing declarations
(e.g. typos) in the future.

Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D56903

llvm-svn: 352361
2019-01-28 14:01:55 +00:00
Ilya Biryukov c514adef05 [CodeComplete] [clangd] Fix crash on ValueDecl with a null type
Reviewers: kadircet

Reviewed By: kadircet

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

Differential Revision: https://reviews.llvm.org/D57093

llvm-svn: 352040
2019-01-24 10:41:43 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
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
2019-01-19 08:50:56 +00:00
Haojian Wu 0b097b1a8a [clangd] Add a test for SignatureHelp on dynamic index.
Summary: This would catch regressions caused by future changes of the index.

Reviewers: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D56483

llvm-svn: 350720
2019-01-09 13:42:03 +00:00
Ilya Biryukov f2001aa743 [clangd] Remove 'using namespace llvm' from .cpp files. NFC
The new guideline is to qualify with 'llvm::' explicitly both in
'.h' and '.cpp' files. This simplifies moving the code between
header and source files and is easier to keep consistent.

llvm-svn: 350531
2019-01-07 15:45:19 +00:00
Ilya Biryukov 22fa465a8c [clangd] clang-format everything. NFC
llvm-svn: 350303
2019-01-03 13:28:05 +00:00
Haojian Wu 744eb3c3be [clangd] Cleanup syntax errors in the test, NFC.
llvm-svn: 349893
2018-12-21 09:32:49 +00:00
Eric Liu b1317fa8df [clangd] Drop injected class name when class scope is not explicitly specified.
Summary: E.g. allow injected "A::A" in `using A::A^` but not in "A^".

Reviewers: kadircet

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

Differential Revision: https://reviews.llvm.org/D55065

llvm-svn: 347982
2018-11-30 11:12:40 +00:00
Eric Liu c0ac4bb17c [clangd] Cleanup: stop passing around list of supported URI schemes.
Summary:
Instead of passing around a list of supported URI schemes in clangd, we
expose an interface to convert a path to URI using any compatible scheme
that has been registered. It favors customized schemes and falls
back to "file" when no other scheme works.

Changes in this patch are:
- URI::create(AbsPath, URISchemes) -> URI::create(AbsPath). The new API finds a
compatible scheme from the registry.
- Remove URISchemes option everywhere (ClangdServer, SymbolCollecter, FileIndex etc).
- Unit tests will use "unittest" by default.
- Move "test" scheme from ClangdLSPServer to ClangdMain.cpp, and only
register the test scheme when lit-test or enable-lit-scheme is set.
(The new flag is added to make lit protocol.test work; I wonder if there
is alternative here.)

Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D54800

llvm-svn: 347467
2018-11-22 15:02:05 +00:00
Haojian Wu ee54a2b501 [clangd] Replace StringRef in SymbolLocation with a char pointer.
Summary:
This would save us 8 bytes per ref, and buy us ~40MB in total
for llvm index (from ~300MB to ~260 MB).

The char pointer must be null-terminated, and llvm::StringSaver
guarantees it.

Reviewers: sammccall

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

Differential Revision: https://reviews.llvm.org/D53427

llvm-svn: 346852
2018-11-14 11:55:45 +00:00
Sam McCall 39e86fa5e4 [clangd] Improve code completion for ObjC methods
Summary:
Previously code completion did not work well for Objective-C methods
which contained multiple arguments as clangd did not expect to see
multiple typed-text chunks when handling code completion.

Note that even with this change, we do not consider selector fragments
from previous arguments to be part of the signature (although we
could in the future).

Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D53934

llvm-svn: 346836
2018-11-14 09:05:19 +00:00
Eric Liu abbd713eb7 [clangd] Deduplicate query scopes.
Summary:
For example, when anonymous namespace is present, duplicated namespaces might be
generated for the enclosing namespace.

Reviewers: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D54105

llvm-svn: 346224
2018-11-06 11:17:40 +00:00
Kadir Cetinkaya b915790385 [clangd] Do not query index for new name completions.
Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D53192

llvm-svn: 345153
2018-10-24 15:24:29 +00:00
Sam McCall e8437cbf5e [clangd] Don't show base class versions of members as completions.
Summary:
These are available via qualifiers, but signal to noise level is low.
Keep required quailifier machinery around though, for cross-ns completion.

Reviewers: ioeric

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

Differential Revision: https://reviews.llvm.org/D53571

llvm-svn: 345141
2018-10-24 13:51:44 +00:00
Sam McCall c008af6466 [clangd] Namespace style cleanup in cpp files. NFC.
Standardize on the most common namespace setup in our *.cpp files:
  using namespace llvm;
  namespace clang {
  namespace clangd {
  void foo(StringRef) { ... }
And remove redundant llvm:: qualifiers. (Except for cases like
make_unique where this causes problems with std:: and ADL).

This choice is pretty arbitrary, but some broad consistency is nice.
This is going to conflict with everything. Sorry :-/

Squash the other configurations:

A)
  using namespace llvm;
  using namespace clang;
  using namespace clangd;
  void clangd::foo(StringRef);
This is in some of the older files. (It prevents accidentally defining a
new function instead of one in the header file, for what that's worth).

B)
  namespace clang {
  namespace clangd {
  void foo(llvm::StringRef) { ... }
This is fine, but in practice the using directive often gets added over time.

C)
  namespace clang {
  namespace clangd {
  using namespace llvm; // inside the namespace
This was pretty common, but is a bit misleading: name lookup preferrs
clang::clangd::foo > clang::foo > llvm:: foo (no matter where the using
directive is).

llvm-svn: 344850
2018-10-20 15:30:37 +00:00
Eric Liu 3fac4ef1fd [clangd] Support scope proximity in code completion.
Summary:
This should make all-scope completion more usable. Scope proximity for
indexes will be added in followup patch.

Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D53131

llvm-svn: 344688
2018-10-17 11:19:02 +00:00
Haojian Wu 1c6b6deb33 [clangd] Add a #include completion test that triggers an assertion.
Summary: Test for https://reviews.llvm.org/D52774.

Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D52775

llvm-svn: 343593
2018-10-02 14:46:08 +00:00
Eric Liu 670c147d83 [clangd] Initial supoprt for cross-namespace global code completion.
Summary:
When no scope qualifier is specified, allow completing index symbols
from any scope and insert proper automatically. This is still experimental and
hidden behind a flag.

Things missing:
- Scope proximity based scoring.
- FuzzyFind supports weighted scopes.

Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D52364

llvm-svn: 343248
2018-09-27 18:46:00 +00:00
Kadir Cetinkaya 0ed5d29b44 Tell whether file/folder for include completions.
Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D52547

llvm-svn: 343221
2018-09-27 14:21:07 +00:00
Ilya Biryukov 4f98470dea [clangd] Handle template args for disabled function arg snippets
Reviewers: kadircet, ioeric, sammccall

Reviewed By: kadircet

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D52422

llvm-svn: 343066
2018-09-26 05:45:31 +00:00
Eric Liu 467c5f9ce0 [clangd] Store preamble macros in dynamic index.
Summary:
Pros:
o Loading macros from preamble for every completion is slow (see profile).
o Calculating macro USR is also slow (see profile).
o Sema can provide a lot of macro completion results (e.g. when filter is empty,
60k for some large TUs!).

Cons:
o Slight memory increase in dynamic index (~1%).
o Some extra work during preamble build (should be fine as preamble build and
indexAST is way slower).

Before:
{F7195645}

After:
{F7195646}

Reviewers: ilya-biryukov, sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D52078

llvm-svn: 342529
2018-09-19 09:35:04 +00:00
Jonas Toth ad51519668 [NFC][clangd] silence pedantic extra ';' warning
llvm-svn: 342267
2018-09-14 19:42:37 +00:00
Sam McCall 0be9c4e8d6 [clangd] Work around compiler macro expansion bugs(?) in completion tests
llvm-svn: 342261
2018-09-14 18:49:16 +00:00
Sam McCall ebef81227b [clangd] Don't override the preamble while completing inside it, it doesn't work.
Summary:
To stay fast, enable single-file-mode instead. This is fine since completions
in the preamble are simple.

The net effect for now is to suppress the spurious TopLevel completions when
completing inside the preamble.
Once Sema has include directive completion, this will be more important.

Reviewers: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D52071

llvm-svn: 342230
2018-09-14 12:36:06 +00:00
Kadir Cetinkaya 873cae5ae7 [clangd] Add unittests for D51917
Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D51924

llvm-svn: 341950
2018-09-11 15:12:10 +00:00
Kadir Cetinkaya 0b77d03d80 [clangd] Add unittests for D51038
Reviewers: ilya-biryukov, ioeric, hokein

Reviewed By: ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D51039

llvm-svn: 341830
2018-09-10 14:22:42 +00:00
Eric Liu 6df66001ee [clangd] Add "Deprecated" field to Symbol and CodeCompletion.
Summary: Also set "deprecated" field in LSP CompletionItem.

Reviewers: sammccall, kadircet

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D51724

llvm-svn: 341576
2018-09-06 18:52:26 +00:00
Ilya Biryukov 5c4d6e66f0 [clangd] Fix data race in async fuzzyFind tests.
llvm-svn: 341538
2018-09-06 11:04:56 +00:00
Eric Liu d25f1214a8 [clangd] Set SymbolID for sema macros so that they can be merged with index macros.
Reviewers: sammccall

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

Differential Revision: https://reviews.llvm.org/D51688

llvm-svn: 341534
2018-09-06 09:59:37 +00:00
Sam McCall b0138317d6 [clangd] SymbolOccurrences -> Refs and cleanup
Summary:
A few things that I noticed while merging the SwapIndex patch:
 - SymbolOccurrences and particularly SymbolOccurrenceSlab are unwieldy names,
   and these names appear *a lot*. Ref, RefSlab, etc seem clear enough
   and read/format much better.
 - The asymmetry between SymbolSlab and RefSlab (build() vs freeze()) is
   confusing and irritating, and doesn't even save much code.
   Avoiding RefSlab::Builder was my idea, but it was a bad one; add it.
 - DenseMap<SymbolID, ArrayRef<Ref>> seems like a reasonable compromise for
   constructing MemIndex - and means many less wasted allocations than the
   current DenseMap<SymbolID, vector<Ref*>> for FileIndex, and none for
   slabs.
 - RefSlab::find() is not actually used for anything, so we can throw
   away the DenseMap and keep the representation much more compact.
 - A few naming/consistency fixes: e.g. Slabs,Refs -> Symbols,Refs.

Reviewers: ioeric

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

Differential Revision: https://reviews.llvm.org/D51605

llvm-svn: 341368
2018-09-04 14:39:56 +00:00
Ilya Biryukov 5a79d1e377 [clangd] Avoid crashes in override completions
Summary: NamedDecl::getName cannot be called on non-identifier names.

Reviewers: kadircet, ioeric, hokein, sammccall

Reviewed By: ioeric

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D51598

llvm-svn: 341322
2018-09-03 15:25:27 +00:00
Eric Liu 83f63e42b2 [clangd] Support multiple #include headers in one symbol.
Summary:
Currently, a symbol can have only one #include header attached, which
might not work well if the symbol can be imported via different #includes depending
on where it's used. This patch stores multiple #include headers (with # references)
for each symbol, so that CodeCompletion can decide which include to insert.

In this patch, code completion simply picks the most popular include as the default inserted header. We also return all possible includes and their edits in the `CodeCompletion` results.

Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D51291

llvm-svn: 341304
2018-09-03 10:18:21 +00:00
Haojian Wu e8064b6f6d [clangd] Implement findOccurrences interface in dynamic index.
Summary:
Implement the interface in
  - FileIndex
  - MemIndex
  - MergeIndex

Depends on https://reviews.llvm.org/D50385.

Reviewers: sammccall, ilya-biryukov

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D51279

llvm-svn: 341242
2018-08-31 19:53:37 +00:00
Sam McCall 2e5700f038 [clangd] Flatten out Symbol::Details. It was ill-conceived, sorry.
Reviewers: ioeric

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

Differential Revision: https://reviews.llvm.org/D51504

llvm-svn: 341211
2018-08-31 13:55:01 +00:00
Ilya Biryukov 43c292c6d9 [clangd] Report position of opening paren in singature help
Summary: Only accessible via the C++ API at the moment.

Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D51437

llvm-svn: 341065
2018-08-30 13:14:31 +00:00
Eric Liu 25d74e9594 [clangd] Speculative code completion index request before Sema is run.
Summary:
For index-based code completion, send an asynchronous speculative index
request, based on the index request for the last code completion on the same
file and the filter text typed before the cursor, before sema code completion
is invoked. This can reduce the code completion latency (by roughly latency of
sema code completion) if the speculative request is the same as the one
generated for the ongoing code completion from sema. As a sequence of code
completions often have the same scopes and proximity paths etc, this should be
effective for a number of code completions.

Trace with speculative index request:{F6997544}

Reviewers: hokein, ilya-biryukov

Reviewed By: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D50962

llvm-svn: 340604
2018-08-24 11:23:56 +00:00
Kirill Bobyrev fc89001cec [clangd] Log memory usage of DexIndex and MemIndex
This patch prints information about built index size estimation to
verbose logs. This is useful for optimizing memory usage of DexIndex and
comparisons with MemIndex.

Reviewed by: sammccall

Differential Revision: https://reviews.llvm.org/D51154

llvm-svn: 340601
2018-08-24 09:12:54 +00:00
Kadir Cetinkaya f8b85a3d6b [clangd] Suggest code-completions for overriding base class virtual methods.
Summary:
Whenever a code-completion is triggered within a class/struct/union looks at
base classes and figures out non-overriden virtual functions. Than suggests
completions for those.

Reviewers: ilya-biryukov, hokein, ioeric

Reviewed By: hokein

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D50898

llvm-svn: 340530
2018-08-23 13:14:50 +00:00
Kadir Cetinkaya 516fcdac6d [clangd] Move function argument snippet disable mechanism from LSP rendering to internal clangd reprensentation.
Summary:
We were handling the EnableFunctionArgSnippets only when we are producing LSP
response. Move that code into CompletionItem generation so that internal clients
can benefit from that as well.

Reviewers: ilya-biryukov, ioeric, hokein

Reviewed By: ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D51102

llvm-svn: 340527
2018-08-23 12:19:39 +00:00
Kadir Cetinkaya 6c9f15c533 [clangd] Add parantheses while auto-completing functions.
Summary:
Currently we only add parantheses to the functions if snippets are
enabled, which also inserts snippets for parameters into parantheses. Adding a
new option to put only parantheses. Also it moves the cursor within parantheses
or at the end of them by looking at whether completion item has any parameters
or not. Still requires snippets support on the client side.

Reviewers: ioeric, ilya-biryukov, hokein

Reviewed By: ioeric

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D50835

llvm-svn: 340040
2018-08-17 15:42:54 +00:00
Simon Pilgrim 24d3492aee Fix clangd tests on older compilers
Old versions of gcc struggle with raw string literals inside macros.

llvm-svn: 340009
2018-08-17 10:40:05 +00:00
Ilya Biryukov 8a0f76b855 [clangd] Fetch documentation from the Index during signature help
Summary:
Sema can only be used for documentation in the current file, other doc
comments should be fetched from the index.

Reviewers: hokein, ioeric, kadircet

Reviewed By: hokein, kadircet

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

Differential Revision: https://reviews.llvm.org/D50727

llvm-svn: 340005
2018-08-17 09:32:30 +00:00
Simon Pilgrim 83552ee008 Attempt to fix clangd tests on older compilers
Old gcc versions of gcc struggle with raw string literals inside macros.

Inspired by rL339759

llvm-svn: 339866
2018-08-16 11:41:19 +00:00
Ilya Biryukov 8fd44bb915 [clangd] Show non-instantiated decls in signatureHelp
Summary:
To avoid producing very verbose output in substitutions involving
typedefs, e.g.
  T -> std::vector<std::string>::iterator
gets turned into an unreadable mess when printed out for libstdc++,
result contains internal types (std::__Vector_iterator<...>) and
expanded well-defined typedefs (std::basic_string<char>).

Until we improve the presentation code in clang, going with
non-instantiated decls looks like a better UX trade-off.

Reviewers: hokein, ioeric, kadircet

Reviewed By: hokein

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D50645

llvm-svn: 339665
2018-08-14 09:36:32 +00:00
Kadir Cetinkaya e486e37a09 [clangd] Introduce scoring mechanism for SignatureInformations.
Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D50555

llvm-svn: 339547
2018-08-13 08:40:05 +00:00
Kadir Cetinkaya a9c9d00016 [clangd] Support textEdit in addition to insertText.
Summary:
Completion replies contains textEdits as well. Note that this change
relies on https://reviews.llvm.org/D50443.

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D50449

llvm-svn: 339543
2018-08-13 08:23:01 +00:00
Haojian Wu 1793bc9f78 [clangd] Fix a "-Wdangling-else" compiler warning in the test.
llvm-svn: 339416
2018-08-10 08:34:16 +00:00
Kadir Cetinkaya 2f84d91131 Added functionality to suggest FixIts for conversion of '->' to '.' and vice versa.
Summary: Added functionality to suggest FixIts for conversion of '->' to '.' and vice versa.

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: yvvan, ioeric, jkorous, arphaman, cfe-commits, kadircet

Differential Revision: https://reviews.llvm.org/D50193

llvm-svn: 339224
2018-08-08 08:59:29 +00:00
Haojian Wu 65ac321092 [clangd] Index Interfaces for Xrefs
Summary:
This is the first step of implementing Xrefs in clangd:
  - add index interfaces, and related data structures.

Reviewers: sammccall

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

Differential Revision: https://reviews.llvm.org/D49658

llvm-svn: 339011
2018-08-06 13:14:32 +00:00
Eric Liu 84bd5db209 [clangd] Use a sigmoid style function for #usages boost in symbol quality.
Summary:
This has a shape to similar logarithm function but grows much slower for
large #usages.

Metrics: https://reviews.llvm.org/P8096

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D49780

llvm-svn: 337907
2018-07-25 11:26:35 +00:00