Commit Graph

78 Commits

Author SHA1 Message Date
Sam McCall 60300c9c7d [clangd] Fix unused var from r364735
llvm-svn: 364741
2019-07-01 10:13:03 +00:00
Haojian Wu 9d34f4569b [clangd] Show better message when we rename macros.
Summary:
Previously, when we rename a macro, we get an error message of "there is
no symbol found".

This patch improves the message of this case (as we don't support macros).

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D63922

llvm-svn: 364735
2019-07-01 09:26:48 +00:00
Kadir Cetinkaya 8bfe0fc1d9 [clangd] Add Value field to HoverInfo
Summary:
Put a symbols value information which is deduced from initializer
expression into HoverInfo struct.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D63330

llvm-svn: 364390
2019-06-26 08:00:24 +00:00
Haojian Wu 92c3257477 [clangd] Cleanup the duplicated getTokenRange.
Summary:
Also lift it to SourceCode.h, so that it can be used in other places
(semantic code highlighting).

Reviewers: kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D63714

llvm-svn: 364280
2019-06-25 08:01:46 +00:00
Nathan Ridge a552508841 [clangd] Type hierarchy subtypes
Summary:
This builds on the relations support added in D59407, D62459, D62471,
and D62839 to implement type hierarchy subtypes.

Reviewers: kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58880

llvm-svn: 363506
2019-06-16 02:31:37 +00:00
Kadir Cetinkaya 4977927536 [clangd] Treat lambdas as functions when preparing hover response
Reviewers: sammccall, ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62814

llvm-svn: 363237
2019-06-13 08:51:44 +00:00
Ilya Biryukov f9169d0896 [clangd] Represent Hover result using FormattedString
Reviewers: sammccall, kadircet

Reviewed By: kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61601

llvm-svn: 361940
2019-05-29 10:01:00 +00:00
Sam McCall 81748bae47 [clangd] Add SourceManager accessor to ParsedAST. NFC
llvm-svn: 361883
2019-05-28 21:52:34 +00:00
Kadir Cetinkaya c6578eefdd [clangd] Introduce a structured hover response
Summary:
Change ClangdServer layer to output a structured response for Hover,
which can be rendered by client according to their needs.

Reviewers: sammccall, ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61497

llvm-svn: 361803
2019-05-28 10:29:58 +00:00
Kadir Cetinkaya 50c3e8cb40 [clangd] Also perform merging for symbol definitions
Summary:
clangd currently prefers declarations from codegen files. This patch
implements that behavior for definition locations. If we have definiton
locations both coming from AST and index, clangd will perform a merging to show
the codegen file if that's the case.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61126

llvm-svn: 359874
2019-05-03 12:11:14 +00:00
Fangrui Song bca2d266d1 [clangd] Support dependent bases in type hierarchy
Patch by Nathan Ridge!

Dependent bases are handled heuristically, by replacing them with the
class template that they are a specialization of, where possible. Care
is taken to avoid infinite recursion.

Differential Revision: https://reviews.llvm.org/D59756

llvm-svn: 358866
2019-04-22 01:38:53 +00:00
Kadir Cetinkaya 8665802202 [clangd] Add support for type hierarchy (super types only for now)
Summary:
Patch by Nathan Ridge(@nridge)!

This is an LSP extension proposed here:
https://github.com/Microsoft/vscode-languageserver-node/pull/426

An example client implementation can be found here:
https://github.com/theia-ide/theia/pull/3802

Reviewers: kadircet, sammccall

Reviewed By: kadircet

Subscribers: jdoerfert, sammccall, cfe-commits, mgorny, dschaefer, simark, ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet

Tags: #clang

Differential Revision: https://reviews.llvm.org/D56370

llvm-svn: 356445
2019-03-19 09:27:04 +00:00
Kadir Cetinkaya 017cc6c190 [clangd] Make sure constructors do not reference class
Reviewers: gribozavr

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58815

llvm-svn: 355679
2019-03-08 09:54:37 +00:00
Dmitri Gribenko 5306a71480 Moved SymbolLocation into its own header and implementation file
Reviewers: ioeric

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58768

llvm-svn: 355082
2019-02-28 11:02:01 +00:00
Marc-Andre Laperle 25e690273a [clangd] Enhance macro hover to see full definition
Summary: Signed-off-by: Marc-Andre Laperle <malaperle@gmail.com>

Reviewers: simark, ilya-biryukov, sammccall, ioeric, hokein

Reviewed By: ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D55250

llvm-svn: 354761
2019-02-24 23:47:03 +00:00
Kadir Cetinkaya 748211a81f [clangd] Only report explicitly typed symbols during code navigation
Summary:
Clangd was reporting implicit symbols, like results of implicit cast
expressions during code navigation, which is not desired. For example:

```
struct Foo{ Foo(int); };
void bar(Foo);
vod foo() {
  int x;
  bar(^x);
}
```
Performing a GoTo on the point specified by ^ would give two results one
pointing to line `int x` and the other for definition of `Foo(int);`

Reviewers: ilya-biryukov, sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58495

llvm-svn: 354585
2019-02-21 14:48:33 +00:00
Kadir Cetinkaya 84b584be62 [clangd] Enable indexing of template type parameters
Summary: Fixes https://bugs.llvm.org/show_bug.cgi?id=36285

Reviewers: ilya-biryukov

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58294

llvm-svn: 354561
2019-02-21 09:55:00 +00:00
Sam McCall 905438a4b5 [clangd] Fix use-after-free in XRefs
llvm-svn: 353821
2019-02-12 10:38:45 +00:00
Eric Liu d11fbf523d [clangd] Prefer location from codegen files when merging symbols.
Summary:
For example, if an index symbol has location in a .proto file and an AST symbol
has location in a generated .proto.h file, then we prefer location in .proto
which is more meaningful to users.

Also use `mergeSymbols` to get the preferred location between AST location and index location in go-to-def.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58037

llvm-svn: 353708
2019-02-11 15:05:29 +00:00
Kadir Cetinkaya 429022995b [clangd] Index parameters in function decls
Reviewers: hokein

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D57950

llvm-svn: 353696
2019-02-11 13:03:08 +00:00
Sam McCall 866ba2c924 [clangd] Implement textDocument/declaration from LSP 3.14
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
2019-02-01 11:26:13 +00:00
Kadir Cetinkaya 249ea33ddf [clangd] Make USRs for macros to be position independent
Summary:
USRs for macros were not cannonical due to usage of cursor location
instead of definition location.

Reviewers: jkorous

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

Differential Revision: https://reviews.llvm.org/D57228

llvm-svn: 352481
2019-01-29 11:19:15 +00:00
Haojian Wu aa3ed5a983 [clangd] NFC: fix clang-tidy warnings.
Most are about llvm code style violation (found via
readability-identifier-naming check).

llvm-svn: 352205
2019-01-25 15:14:03 +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 c34f022bfe [clangd] Add Limit parameter for xref.
Reviewers: sammccall

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

Differential Revision: https://reviews.llvm.org/D56597

llvm-svn: 351081
2019-01-14 18:11:09 +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
Kadir Cetinkaya dd67793c0c [clangd] Unify path canonicalizations in the codebase
Summary:
There were a few different places where we canonicalized paths, each
one had its own flavor. This patch tries to unify them all under one place.

Reviewers: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D55818

llvm-svn: 349618
2018-12-19 10:46:21 +00:00
Haojian Wu bf28533726 [clangd] Refine the way of checking a declaration is referenced by the written code.
Summary:
The previous solution (checking the AST) is not a reliable way to
determine whether a declaration is explicitly referenced by the source
code, we are still missing a few cases.

Reviewers: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D55191

llvm-svn: 349033
2018-12-13 13:17:04 +00:00
Eric Liu 4d814a93e5 [clangd] Canonicalize file path in URIForFile.
Summary:
File paths in URIForFile can come from index or local AST. Path from
index goes through URI transformation and the final path is resolved by URI
scheme and could be potentially different from the original path. Hence, we
should do the same transformation for all paths. We do this in URIForFile, which
now converts a path to URI and back to a canonicalized path.

Reviewers: sammccall

Reviewed By: sammccall

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

Differential Revision: https://reviews.llvm.org/D54845

llvm-svn: 347739
2018-11-28 10:30:42 +00:00
Jan Korous b406701f66 [clangd] textDocument/SymbolInfo extension
New method returning symbol info for given source position.

Differential Revision: https://reviews.llvm.org/D54799

rdar://problem/46050281

llvm-svn: 347675
2018-11-27 16:40:46 +00:00
Marc-Andre Laperle f975400838 [clangd] Fix crash hovering on non-decltype trailing return
Summary:
More specifically, hovering on "auto" in
auto main() -> int {
    return 0;
}

Signed-off-by: Marc-Andre Laperle <malaperle@gmail.com>

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D54553

llvm-svn: 347119
2018-11-17 00:41:14 +00:00
Sam McCall 98ae975187 [clangd] Initial clang-tidy diagnostics support.
Summary:
This runs checks over a restricted subset of the TU:
 - preprocessor callbacks just receive the truncated PP events that
   occur when a preamble is used.
 - ASTMatchers run only over the top-level decls in the main-file

This patch just turns on one simple check (bugprone-sizeof-expression)
with no configuration. Configuration is complex enough to warrant a separate patch

This depends on a patch allowing traversal to be restricted to a scope.

Reviewers: hokein

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

Differential Revision: https://reviews.llvm.org/D54204

llvm-svn: 347036
2018-11-16 08:32:23 +00:00
Ilya Biryukov 5a74a9cf5f [clangd] Simplify auto hover
Summary:
Use helper from clang. Also fixes some weird corner cases, e.g.
    auto (*foo)() = bar;

Reviewers: kadircet, hokein

Reviewed By: kadircet, hokein

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

Differential Revision: https://reviews.llvm.org/D53347

llvm-svn: 345128
2018-10-24 10:09:34 +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
Haojian Wu 812b6c51c3 [clangd] Remove the overflow log.
Summary:
LLVM codebase has generated files (all are build/Target/XXX/*.inc) that
exceed the MaxLine & MaxColumn. Printing these log would be noisy.

Reviewers: sammccall

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

Differential Revision: https://reviews.llvm.org/D53400

llvm-svn: 344777
2018-10-19 08:35:24 +00:00
Haojian Wu b515fabb3b [clangd] Encode Line/Column as a 32-bits integer.
Summary:
This would buy us more memory. Using a 32-bits integer is enough for
most human-readable source code (up to 4M lines and 4K columns).

Previsouly, we used 8 bytes for a position, now 4 bytes, it would save
us 8 bytes for each Ref and each Symbol instance.

For LLVM-project binary index file, we save ~13% memory.

| Before | After |
| 412MB  | 355MB |

Reviewers: sammccall

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

Differential Revision: https://reviews.llvm.org/D53363

llvm-svn: 344735
2018-10-18 10:43:50 +00:00
Haojian Wu 903f2a71a4 [clangd] Support hover on "aut^o *".
Reviewers: kadircet

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

Differential Revision: https://reviews.llvm.org/D53186

llvm-svn: 344330
2018-10-12 10:11:02 +00:00
Fangrui Song 8380c9e918 [clangd] Migrate to LLVM STLExtras range API
llvm-svn: 343946
2018-10-07 17:21:08 +00:00
Kirill Bobyrev 4a5ff88fdb [clangd] NFC: Migrate to LLVM STLExtras API where possible
This patch improves readability by migrating `std::function(ForwardIt
start, ForwardIt end, ...)` to LLVM's STLExtras range-based equivalent
`llvm::function(RangeT &&Range, ...)`.

Similar change in Clang: D52576.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D52650

llvm-svn: 343937
2018-10-07 14:49:41 +00:00
Haojian Wu d592498978 [clangd] Use canonical declarations in ReferenceFinder.
Summary:
handleDeclOccurrencce reports a canonical declartion, so stick to use
canonical declarations to determine whether a declaration is in the
target set.

Also fix a previous ref test which misses a matched label (it fails without this
patch).

Reviewers: sammccall

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

Differential Revision: https://reviews.llvm.org/D52871

llvm-svn: 343763
2018-10-04 09:56:08 +00:00
Eric Liu f736766659 [clangd] Adapt API change after 342451.
llvm-svn: 342452
2018-09-18 08:52:14 +00:00
Haojian Wu 53e91c1b08 [clangd] Sort GoToDefinition results.
Summary:
GoToDefinition returns all declaration results (implicit/explicit) that are
in the same location, and the results are returned in arbitrary order.

Some LSP clients defaultly take the first result as the final result, which
might present a bad result (implicit decl) to users.

This patch ranks the result based on whether the declarations are
referenced explicitly/implicitly. We put explicit declarations first.

This also improves the "hover" (which just take the first result) feature
in some cases.

Reviewers: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D50438

llvm-svn: 341463
2018-09-05 12:00:15 +00:00
Sam McCall 1ad142fe26 [clangd] Add xrefs LSP boilerplate implementation.
Reviewers: ilya-biryukov, ioeric

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D50896

llvm-svn: 341462
2018-09-05 11:53:07 +00:00
Sam McCall d445f17614 [clangd] Implement findReferences function
clangd will use findReferences to provide LSP's reference feature.

llvm-svn: 341458
2018-09-05 10:33:36 +00:00
Ilya Biryukov 8f3b3df5f8 [clangd] Remove unused parameter. NFC
llvm-svn: 340816
2018-08-28 11:04:07 +00:00
Kadir Cetinkaya 0d2e6251ce [clangd] Check for include overlapping looks for only the line now.
Summary:
Currently we match an include only if we are inside filename, with this patch we
will match whenever we are on the starting line of the include.

Reviewers: ilya-biryukov, hokein, ioeric

Reviewed By: ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D51163

llvm-svn: 340539
2018-08-23 15:55:27 +00:00
Kirill Bobyrev 8e35f1e7cb NFC: Enforce good formatting across multiple clang-tools-extra files
This patch improves readability of multiple files in clang-tools-extra
and enforces LLVM Coding Guidelines.

Reviewed by: ioeric

Differential Revision: https://reviews.llvm.org/D50707

llvm-svn: 339687
2018-08-14 16:03:32 +00:00
Simon Marchi 25f1f7325f [clangd] Avoid duplicates in findDefinitions response
Summary:
When compile_commands.json contains some source files expressed as
relative paths, we can get duplicate responses to findDefinitions.  The
responses only differ by the URI, which are different versions of the
same file:

    "result": [
        {
            ...
            "uri": "file:///home/emaisin/src/ls-interact/cpp-test/build/../src/first.h"
        },
        {
            ...
            "uri": "file:///home/emaisin/src/ls-interact/cpp-test/src/first.h"
        }
    ]

In getAbsoluteFilePath, we try to obtain the realpath of the FileEntry
by calling tryGetRealPathName.  However, this can fail and return an
empty string.  It may be bug a bug in clang, but in any case we should
fall back to computing it ourselves if it happens.

I changed getAbsoluteFilePath so that if tryGetRealPathName succeeds, we
return right away (a real path is always absolute).  Otherwise, we try
to build an absolute path, as we did before, but we also call
VFS->getRealPath to make sure to get the canonical path (e.g. without
any ".." in it).

Reviewers: malaperle

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

Differential Revision: https://reviews.llvm.org/D48687

llvm-svn: 339483
2018-08-10 22:27:53 +00:00
Stephen Kelly 43465bf3fd Port getLocStart -> getBeginLoc
Reviewers: javed.absar

Subscribers: nemanjai, kbarton, ilya-biryukov, ioeric, jkorous, arphaman, jfb, cfe-commits

Differential Revision: https://reviews.llvm.org/D50354

llvm-svn: 339400
2018-08-09 22:42:26 +00:00