Commit Graph

6928 Commits

Author SHA1 Message Date
Utkarsh Saxena 43243208fa
[clangd] Implement textDocument/implementation (Xref layer)
Xref layer changes for textdocument/implementation (https://microsoft.github.io/language-server-protocol/specification#textDocument_implementation)

This currently shows all functions (implementations) that overrides a virtual function.

Differential Revision: https://reviews.llvm.org/D91702
2020-11-18 17:06:47 +01:00
Haojian Wu aad3ea8983 [clangd] Remove the trailing "." in add-using message.
to be consistent witih other code actions.

Reviewed By: adamcz

Differential Revision: https://reviews.llvm.org/D91694
2020-11-18 14:46:26 +01:00
Nathan Ridge 9d77584fe0 [clangd] Call hierarchy (Protocol layer)
The protocol is based on the spec found here:
https://microsoft.github.io/language-server-protocol/specifications/specification-3-16/#textDocument_prepareCallHierarchy

Differential Revision: https://reviews.llvm.org/D89296
2020-11-18 03:41:31 -05:00
Utkarsh Saxena 4bc085f5b3 [clangd] Add OverridenBy Relation to index.
This was previously explored in reviews.llvm.org/D69094.

Differential Revision: https://reviews.llvm.org/D91610
2020-11-18 06:59:49 +01:00
Kadir Cetinkaya 5a9f386704
[clang-tidy] Make clang-format and include-order-check coherent
LLVM style puts both gtest and gmock to the end of the include list.
But llvm-include-order-check was only moving gtest headers to the end, resulting
in a false tidy-warning.

Differential Revision: https://reviews.llvm.org/D91602
2020-11-17 14:54:10 +01:00
Haojian Wu af0d607e72 [clang-tidy] Fix an abseil-redundant-strcat-calls crash on 0-parameter StrCat().
Differential Revision: https://reviews.llvm.org/D91601
2020-11-17 11:05:24 +01:00
Haojian Wu 218500d823 [clang-tidy] Verify the fixes in abseil-redundant-strcat-calls test, NFC 2020-11-17 10:15:29 +01:00
Felix Berger ace9653c11 [clang-tidy] performance-unnecessary-copy-initialization: Check for const reference arguments that are replaced template parameter type.
This fixes false positive cases where a non-const reference is passed to a
std::function but interpreted as a const reference.

Fix the definition of the fake std::function added in the test to match
std::function and make the bug reproducible.

Reviewed-by: aaron.ballman

Differential Revision: https://reviews.llvm.org/D90042
2020-11-16 17:08:18 -05:00
Zinovy Nis 4364539b3a [clang-tidy] Fix crash in bugprone-redundant-branch-condition on ExprWithCleanups
Bug: https://bugs.llvm.org/show_bug.cgi?id=48008

Differential Revision: https://reviews.llvm.org/D91037
2020-11-14 08:35:21 +03:00
Kadir Cetinkaya 8dc2aa0e41
[clangd] Canonicalize LLVM_ENABLE_ZLIB
It is used in our lit test's configuration now.
2020-11-13 18:20:37 +01:00
Kadir Cetinkaya 8741a76f5d
[clangd] Ensure we test for compatibility of serialized index format
Differential Revision: https://reviews.llvm.org/D91330
2020-11-13 17:06:23 +01:00
Kadir Cetinkaya 6e7dd1e3e1
[clangd] Assert on varint encoding
5th byte of a varint can't be bigger than 0x0f, fix a test and add an
assertion.

Differential Revision: https://reviews.llvm.org/D91405
2020-11-13 17:01:07 +01:00
Kirill Bobyrev a115248282
[clangd] Add missing tests to rename feature
This adds a couple of missed tests from existing clang-rename ones and
introduces several new ones (e.g. static class member). This patch is required
to ensure feature parity for migration off Clang-Rename API D71880.

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D91337
2020-11-13 12:27:40 +01:00
Nathan James 06db8f984f
[clang-tidy] Merge options inplace instead of copying
Changed `ClangTidyOptions::mergeWith` to operate on the instance instead of returning a copy. The old mergeWith method has been renamed to merge and marked as nodiscard, to aid in disambiguating which one is which.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D91184
2020-11-12 18:19:12 +00:00
Kadir Cetinkaya 6484aa1add
[clangd] Simplify relations deserialization loop, NFC. 2020-11-12 10:33:39 +01:00
Sam McCall 686d8a0911 [clangd] Add index server request logging
- Add verbose logging of payloads
- Add public logging of request summaries
- fix non-logging of messages in request scopes (oops!)
- add test for public/non-public logging, extending pipeline_helper a bit.

We've accumulated quite a lot of duplication in the request handlers by now.
I should factor that out, but not in this patch...

Differential Revision: https://reviews.llvm.org/D90654
2020-11-11 23:58:18 +01:00
Duncan P. N. Exon Smith 4c55c3b66d Frontend: Change ComputePreambleBounds to take MemoryBufferRef, NFC
Avoid requiring an actual MemoryBuffer in ComputePreambleBounds, when
a MemoryBufferRef will do just fine.

Differential Revision: https://reviews.llvm.org/D90890
2020-11-11 17:19:51 -05:00
Sam McCall 3c09103291 [clangd] Sanity-check array sizes read from disk before allocating them.
Previously a corrupted index shard could cause us to resize arrays to an
arbitrary int32. This tends to be a huge number, and can render the
system unresponsive.

Instead, cap this at the amount of data that might reasonably be read
(e.g. the #bytes in the file). If the specified length is more than that,
assume the data is corrupt.

Differential Revision: https://reviews.llvm.org/D91258
2020-11-11 23:16:53 +01:00
Sam McCall 956c899296 [clangd] Fix serialization error check. 2020-11-11 20:46:04 +01:00
Aleksandr Platonov dad804a193 [clangd] Improve clangd-indexer performance
This is a try to improve clangd-indexer tool performance:
- avoid processing already processed files.
- use different mutexes for different entities (e.g. do not block insertion of references while symbols are inserted)

Results for LLVM project indexing:
- before: ~30 minutes
- after: ~10 minutes

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D91051
2020-11-11 14:38:06 +03:00
Kirill Bobyrev 91ce6fb5a6
[clangd] Abort rename when given the same name
When user wants to rename the symbol to the same name we shouldn't do any work.
Bail out early and return error to save compute.

Resolves: https://github.com/clangd/clangd/issues/580

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D91134
2020-11-11 11:13:47 +01:00
Kirill Bobyrev 8e9bde34e7 [clangd] NFC: Add more logging to remote index test 2020-11-11 08:24:09 +01:00
Nathan James e076fee63d
[clang-tidy][NFC] Tweak GlobList to iterate backwards
By iterating backwards over the globs we can exit the loop as soon as we find a match.

While we're here:
 - Regex doesn't need to be mutable.
 - We can reserve the amount of Globs needed ahead of time.
 - Using a SmallVector with size 0 is slightly more space efficient than a std::vector.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D91033
2020-11-10 14:27:24 +00:00
Haojian Wu a97d7b9159 Fix the buildbot failure.
Looks like we hit a bug in iterator of DeclContextLookupResult, workaround
by a forloop.

http://45.33.8.238/win/27605/step_4.txt
2020-11-10 13:11:54 +01:00
Kirill Bobyrev 47fcf233ce
[clangd] Fix recommended gRPC version
Typo: 1.32.2 does not exist, it should be 1.33.2 https://github.com/grpc/grpc/releases/tag/v1.33.2
2020-11-10 15:07:03 +03:00
Haojian Wu 71064b0270 [clangd] Bump index version number.
https://reviews.llvm.org/D89670 changed the Ref structure, we need to
bump the version to invalidate all stored stale data, otherwise we will
get ` Error while reading shard: malformed or truncated refs` when
building the background index.

Differential Revision: https://reviews.llvm.org/D91131
2020-11-10 10:31:59 +01:00
Kirill Bobyrev 085f900830 [clangd] Update remote index documentation
* Even though remote index is still somewhat experimental, it can now be
  used withing clangd itself: this should be the primary way of trying
  it out
* Remove `protobuf-compiler` from list of needed Debian packages as it
  `protobuf-compiler-grpc` already depends on it
* Bump recommended gRPC version to 1.32.3
2020-11-10 10:18:38 +01:00
Kirill Bobyrev ca892f46fe
[clangd] Enhance Clangd rename testing coverage
We plan to eliminate error-prone and obsolete Clang-Rename API from Clangd. To
do that, we will introduce Decl canonicalization rules that will make renaming
code simpler and easier to maintain (D71880).

To ensure smooth transition to the new implementation, many Clang-Rename tests
will be adopted in Clangd to prevent any possible regressions. This patch is
the first in the chain of test migration patches. It improves existing tests
and adopts tests from Clang-Rename's alias, class and enum testing files.

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D91102
2020-11-10 10:08:49 +01:00
Haojian Wu daa736da10 [clangd] Add basic conflict detection for the rename.
With this patch, we reject the rename if the new name would conflict with
any other decls in the decl context of the renamed decl.

Differential Revision: https://reviews.llvm.org/D89790
2020-11-10 08:52:30 +01:00
Kirill Bobyrev 142c6f82fd
[clang] Simplify buildSyntaxTree API
Follow-up on https://reviews.llvm.org/D88553#inline-837013

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D90672
2020-11-09 22:49:54 +01:00
Kadir Cetinkaya 7df6340e6f
[clangd] Fix shared-lib builds
This breaks a cyclic dependency. clangDeamon doesn't need to depend on
clangdRemoteIndex yet.
2020-11-09 22:15:08 +01:00
Kirill Bobyrev 2c2680a470
[clangd] NFC: Fix a typo in Tracer name 2020-11-09 21:18:35 +01:00
Aleksandr Platonov 1bbf87e22a [clangd][remote] Check an index file correctly
There is not reason to check `std::make_unique<...>(..)` return value,
but `clangd::clang::loadIndex()` returns `nullptr` if an index file could not be loaded (e.g. incorrect version).

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D91049
2020-11-09 21:40:45 +03:00
Frank Derry Wanye 9ca6fc4e09 Add a new altera kernel name restriction check to clang-tidy.
The altera kernel name restriction check finds kernel files and include
directives whose filename is "kernel.cl", "Verilog.cl", or "VHDL.cl".
Such kernel file names cause the Altera Offline Compiler to generate
intermediate design files that have the same names as certain internal
files, which leads to a compilation error.

As per the "Guidelines for Naming the Kernel" section in the "Intel FPGA
SDK for OpenCL Pro Edition: Programming Guide."

This reverts the reversion from 43a38a6523.
2020-11-09 09:26:50 -05:00
Nathan James f0922efdde
[clang-tidy] Remove bad assert after 3b9b90a1
Forgot to remove it on push, just there to help debugging
2020-11-09 13:21:55 +00:00
Nathan James 5918ef8b1a
[clangd] Handle duplicate enum constants in PopulateSwitch tweak
If an enum has different names for the same constant, make sure only the first one declared gets added into the switch. Failing to do so results in a compiler error as 2 case labels can't represent the same value.

```
lang=c
enum Numbers{
One,
Un = One,
Two,
Deux = Two,
Three,
Trois = Three
};

// Old behaviour
switch (<Number>) {
  case One:
  case Un:
  case Two:
  case Duex:
  case Three:
  case Trois: break;
}

// New behaviour
switch (<Number>) {
  case One:
  case Two:
  case Three: break;
}
```

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D90555
2020-11-09 12:14:53 +00:00
Sam McCall 053110b22a [clangd] Don't run clang-tidy AST traversal if there are no checks.
While here, clean up ParsedAST::build a bit:
 - remove FIXMEs that were fixed long ago by ReplayPreamble
 - remove redundant if, ClangTidyContext is not actually optional

Differential Revision: https://reviews.llvm.org/D90975
2020-11-09 08:44:06 +01:00
Nathan James 4dde325004
[clang-tidy] Fix build for gcc5.3 after d725f1ce 2020-11-08 17:25:18 +00:00
Nathan James d725f1ce53
[clang-tidy] Use vfs::FileSystem when getting config
The config providers that look for configuration files currently take a pointer to a FileSystem in the constructor.
For some reason this isn't actually used when trying to read those configuration files, Essentially it just follows the behaviour of the real filesystem.
Using clang-tidy standalone this doesn't cause any issue.
But if its used as a library and the user wishes to use say an `InMemoryFileSystem` it will try to read the files from the disc instead.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D90992
2020-11-07 19:18:02 +00:00
Nathan James 062b5c598f
[clangd] Set the User option for clang-tidy to mimick its behaviour
Probably not essential as afaik only one check uses this field. but still good to have consistent behaviour.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D90552
2020-11-06 19:58:21 +00:00
Nathan James 3b9b90a191
[clang-tidy] Extend IdentifierNamingCheck per file config
Add IgnoreMainLikeFunctions to the per file config. This can be extended for new options added to the check easily.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D90832
2020-11-05 19:51:05 +00:00
Utkarsh Saxena f253823398 [clangd] Trivial: Log missing completion signals.
Differential Revision: https://reviews.llvm.org/D90828
2020-11-05 18:52:44 +01:00
Kadir Cetinkaya ed424b4288
[clangd] Cleanup dependencies around RemoteIndex
RemoteIndexClient implementations only depends on clangdSupport for
logging functionality and has no dependence on clangDeamon itself. This clears
out that link time dependency and enables depending on it in clangDeamon itself,
so that we can have other index implementations that makes use of the
RemoteIndex.

Differential Revision: https://reviews.llvm.org/D90746
2020-11-04 16:58:11 +01:00
Balázs Kéri d1b2a52319 [clang-tidy] Add signal-handler-check for SEI CERT rule SIG30-C
SIG30-C. Call only asynchronous-safe functions within signal handlers

First version of this check, only minimal list of functions is allowed
("strictly conforming" case), for C only.

Differential Revision: https://reviews.llvm.org/D87449
2020-11-04 16:42:30 +01:00
Aaron Ballman 45e0f65162 Add a floating-point suffix to silence warnings; NFC
This silences about 6000 warnings about truncating from double to float
with Visual Studio.
2020-11-04 10:09:51 -05:00
Kadir Cetinkaya a57550def1
[clangd] Pass parameters to config apply functions
This will enable some fragments to apply their features selectively.

Depends on D90270.

Differential Revision: https://reviews.llvm.org/D90455
2020-11-04 10:29:24 +01:00
Nathan Ridge 3bec07f91f [clangd] Store the containing symbol for refs
This is needed to implement call hierarchy.

Differential Revision: https://reviews.llvm.org/D89670
2020-11-04 03:21:45 -05:00
Nathan James cb9d0e8819
[clangd][NFC] Make Located::operator->() use pointer sematics
This enables using the arrow operator to access members of the contained item.
```lang=c++
Located<std::string> X;
const char* CStr = X->c_str();
```
This is inline with how classes like `Optional` handle the arrow operator.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D90682
2020-11-04 01:36:14 +00:00
Kadir Cetinkaya 05e0a8e519
[clangd] Fix missing override warnings in remote-index client 2020-11-03 21:46:44 +01:00
Kadir Cetinkaya 7f059a258a
[clangd] Handle absolute/relative path specifications in Config
This introduces a mechanism for providers to interpret paths specified
in a fragment either as absolute or relative to fragment location.
This information should be used during compile stage to handle blocks correctly.

Differential Revision: https://reviews.llvm.org/D90270
2020-11-03 21:45:35 +01:00
Hiral Oza d6a468d622 [clang-tidy] adding "--config-file=<file-path>" to specify custom config file.
Let clang-tidy to read config from specified file.
Example:
$ clang-tidy --config-file=/some/path/myTidyConfig --list-checks --
...this will read config from '/some/path/myTidyConfig'.

ClangTidyMain.cpp reads ConfigFile into string and then assigned read data to 'Config' i.e. makes like '--config' code flow internally.

May speed-up tidy runtime since now it will just look-up <file-path>
instead of searching ".clang-tidy" in parent-dir(s).

Directly specifying config path helps setting build dependencies.

Thanks to @DmitryPolukhin for valuable suggestion. This patch now propose
change only in ClangTidyMain.cpp.

Reviewed By: DmitryPolukhin

Differential Revision: https://reviews.llvm.org/D89936
2020-11-03 11:59:46 +00:00
Sam McCall 65eaec9bd3 [clangd] Add -log=public to redact all request info from index server logs
The index server has access to potentially-sensitive information, e.g. a
sequence of fuzzyFind requests reveals details about code completions in the
editor which in turn reveals details about the code being edited.
This information is necessary to provide the service, and our intention[1] is it
should never be retained beyond the scope of the request (e.g. not logged).

At the same time, some log messages should be exposed:
 - server startup/index reloads etc that don't pertain to a user request
 - basic request logs (method, latency, #results, error code) for monitoring
 - errors while handling requests, without request-specific data
The -log=public design accommodates these by allowing three types of logs:
 - those not associated with any user RPC request (via context-propagation)
 - those explicitly tagged as [public] in the log line
 - logging of format strings only, with no interpolated data (error level only)

[1] Specifically: Google is likely to run public instances of this server
for LLVM and potentially other projects, they will run in this configuration.
The details agreed in a Google-internal privacy review.
As clangd developers, we'd encourage others to use this configuration for public
instances too.

Differential Revision: https://reviews.llvm.org/D90526
2020-11-02 21:25:12 +01:00
Sam McCall c29513f7e0 [clangd] Fix check-clangd with no clang built
- pass required=False to use_clang(), as we don't need it
- fix required=False (which was unused and rotted):
  - make derived substitutions conditional on it
  - add a feature so we can disable tests that need it
- conditionally disable our one test that depends on %resource_dir.
  This doesn't seem right from first principles, but isn't a big deal.

Differential Revision: https://reviews.llvm.org/D90528
2020-11-02 21:10:43 +01:00
Shoaib Meenai 6bd01b8184 [clangd] Account for vendor in version string
The vendor will be prefixed to the "clangd" and can be an arbitrary
string, so account for it in the test.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D90517
2020-11-02 09:04:44 -08:00
Nico Weber c88390468c Revert "Add a new altera kernel name restriction check to clang-tidy."
This reverts commit 43a38a6523,
and follow-up 5a7bc5e259.

The commit breaks check-clang-tools, the test added in the change
does not pass.
2020-11-02 10:30:42 -05:00
Aaron Ballman 5a7bc5e259 Fix link to a new check within the release notes. 2020-11-02 10:19:24 -05:00
Frank Derry Wanye 43a38a6523 Add a new altera kernel name restriction check to clang-tidy.
The altera kernel name restriction check finds kernel files and include
directives whose filename is "kernel.cl", "Verilog.cl", or "VHDL.cl".
Such kernel file names cause the Altera Offline Compiler to generate
intermediate design files that have the same names as certain internal
files, which leads to a compilation error.

As per the "Guidelines for Naming the Kernel" section in the "Intel FPGA
SDK for OpenCL Pro Edition: Programming Guide."
2020-11-02 10:11:38 -05:00
David Sanders a07a2c88d9 Use --use-color in run-clang-tidy.py
Now that clang-tidy supports the --use-color command line option, it's
a better user experience to use --use-color in run-clang-tidy.py and
preserving the colored output.
2020-11-02 08:38:20 -05:00
Kadir Cetinkaya 0df197516b
[clangd] Value initialize SymbolIDs
We were default initializing SymbolIDs before, which would leave
indeterminate values in underlying std::array.

This patch updates the underlying data initalization to be value-init and adds a
way to check for validness of a SymbolID.

Differential Revision: https://reviews.llvm.org/D90397
2020-11-02 11:37:47 +01:00
Kirill Bobyrev d0beda1b66 [clangd] Improve remote-index test
Introduce a separate thread that will kill `clangd-index-server` after 10 seconds regardless. This helps shut down the test if the server hangs and `stderr.readline()` does not contain inititalizatiton message. It prevents "necessary" waiting delay for the server warm-up and only introduces additional delay if the test fails.

It also makes use of `subprocess.Popen.kill()` which is a portable way of handling process shutdown and avoids using signals.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D90590
2020-11-02 10:55:17 +01:00
Kirill Bobyrev 76a168bce0 [clangd] Add lit tests for remote index
Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D90291
2020-11-02 08:38:16 +01:00
Ilya Golovenko 6d15a28a85 [clangd] Fix ParsedASTTest.TopLevelDecls test.
Google test matcher `DeclKind` uses `NamedDecl::getDeclKindName()` to compare its result with expected declaration name.
Both, returned value of this function and the expected kind name argument have type `const char *`, so this matcher effectively
compares two pointers instead of the respective strings.

The test was passing on most platforms because compilers mostly were able to coalesce these string literals.

Patch By: Ilya Golovenko

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D90384
2020-11-02 08:37:04 +01:00
David Sanders d915d403d7 Use ANSI escape codes for --use-color on Windows
On Windows the --use-color option cannot be used for its originally
intended purpose of forcing color when piping stdout, since Windows
does not use ANSI escape codes by default. This change turns on ANSI
escape codes on Windows when forcing color to a non-displayed stdout
(e.g. piped).
2020-10-31 10:36:42 -04:00
Pedro Gonnet 43e451f9f3 Fix gendered documentation
Changed two references to developers as "he" or "him" to the more neutral "they".

Reviewed By: JDevlieghere, sylvestre.ledru

Differential Revision: https://reviews.llvm.org/D78807
2020-10-31 12:17:19 +01:00
Nathan James 8a28a29c73
[clang-tidy][test] Fix test failure when LLVM_ENABLE_WERROR is set.
After https://reviews.llvm.org/D80531 landed, a subtle bug was introduced where the test would fail if `LLVM_ENABLE_WERROR` was set. This just silences that error so the test case runs correctly, down the line it may be worth not enabling `-Werror` for clang-tidy tests even if the cmake flag is passed.
2020-10-30 23:17:11 +00:00
Simon Pilgrim 888969f62a [clangd] Fix MSVC implicit capture build failure.
MSVC builds were failing because the constexpr wasn't couldn't be captured by the lamdba.

Fix an implicit double to float truncation warning as well.
2020-10-30 11:36:59 +00:00
Nico Weber f1e0944fe5 clang-tidy: Make tests more hermetic
Make check_clang_tidy.py not just pass -format-style=none by default
but a full -config={}. Without this, with a build dir outside of
the llvm root dir and a .clang-tidy config further up that contains

  CheckOptions:
    - key:          modernize-use-default-member-init.UseAssignment
      value:        1

these tests would fail:

   Clang Tools :: clang-tidy/checkers/cppcoreguidelines-prefer-member-initializer-modernize-use-default-member-init.cpp
   Clang Tools :: clang-tidy/checkers/modernize-use-default-member-init-bitfield.cpp
   Clang Tools :: clang-tidy/checkers/modernize-use-default-member-init.cpp

After this change, they pass fine, despite the unrelated
.clang-tidy file further up.
2020-10-29 20:14:57 -04:00
Utkarsh Saxena 7df80a1204 [clangd] Add support for multiple DecisionForest model experiments.
With every incremental change, one needs to check-in new model upstream.
This also significantly increases the size of the git repo with every
new model.
Testing and comparing the old and previous model is also not possible as
we run only a single model at any point.

One solution is to have a "staging" decision forest which can be
injected into clangd without pushing it to upstream. Compare the
performance of the staging model with the live model. After a couple of
enhancements have been done to staging model, we can then replace the
live model upstream with the staging model. This reduces upstream churn
and also allows us to compare models with current baseline model.

This is done by having a callback in CodeCompleteOptions which is called
only when we want to use a decision forest ranking model. This allows us
to inject different completion model internally.

Differential Revision: https://reviews.llvm.org/D90014
2020-10-29 19:49:40 +01:00
Sam McCall 1d773a4ff0 [CMake] Support inter-proto dependencies in generate_protos.
Differential Revision: https://reviews.llvm.org/D90215
2020-10-29 10:04:20 +01:00
Sam McCall 5627ae6c50 [clangd] Support CodeActionParams.only
Differential Revision: https://reviews.llvm.org/D89126
2020-10-29 09:44:08 +01:00
Sam McCall 0e94836989 [clangd] Go-to-definition from non-renaming alias is unambiguous.
It's not helpful to show the alias itself as an option.
This fixes a regression accepted in f24649b77d.

Differential Revision: https://reviews.llvm.org/D89238
2020-10-28 20:17:35 +01:00
Sam McCall 87f03e13ce [clangd] Don't offer to expand auto in structured binding declarations.
auto must be used for the code to parse.

Differential Revision: https://reviews.llvm.org/D89700
2020-10-28 18:55:23 +01:00
Kadir Cetinkaya 68b48339e5
[clangd] Fix a null dereference in tests. 2020-10-28 18:24:26 +01:00
Nathan James 556ee675c1
[clang-tidy][NFC] IdentifierNaming: Remove unnecessary string allocations
Remove the need to heap allocate a string for each style option lookup while reading or writing options.p

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D90244
2020-10-28 15:49:51 +00:00
Kirill Bobyrev 5ad6bbacf0
[clangd] Start using SyntaxTrees for folding ranges feature
This is an initial attempt to start using Syntax Trees in clangd while improving state of folding ranges feature and experimenting with Syntax Tree capabilities.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D88553
2020-10-27 16:47:35 +01:00
Kirill Bobyrev d26dd74308 [clangd] Separate final_result into a different message
This is a breaking change in remote index protocol.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D89851
2020-10-27 11:46:16 +01:00
Sam McCall 2ef2841c0d [clangd] Fix proto deps, for real this time.
This is ugly (layering violation) but we can clean it up once we know it
works in CI.
2020-10-27 09:15:42 +01:00
Nathan Ridge 245b61a330 [clangd] Increase the TooMany limit for index-based textual navigation to 5
Differential Revision: https://reviews.llvm.org/D90134
2020-10-27 01:49:09 -04:00
Kirill Bobyrev d071bba9a4 [clangd] Add back dependency on proto generated targets
Previous attempts:

* 15f6bad6d7
* 58d0ef2d04

The combination results in both link- and build-time dependency which is
the desired behavior.
2020-10-26 20:39:10 +01:00
Joe Turner 1e076a8d80 Make sure Objective-C category support in IncludeSorter handles top-level imports
Currently, this would not correctly associate a category with the related include if it was top-level (i.e. no slashes in the path). This ensures that we explicitly think about that case.

Reviewed By: gribozavr2

Differential Revision: https://reviews.llvm.org/D89608
2020-10-26 12:24:43 -07:00
Benjamin Kramer 26750a1264 [clang-tidy] Silence unused variable warning in Release builds. NFCI.
ExpandModularHeadersPPCallbacks.cpp:55:15: warning: unused variable 'FileEntry'
    for (auto FileEntry : FilesToRecord)
              ^
2020-10-26 20:20:23 +01:00
Kirill Bobyrev 1704704e76
[clangd] NFC: Update FIXME comment regarding lack of c/dtor support
Both `SymbolKind` and `indexSymbolKindToSymbolKind` support constructors and
separate them into a different category from regular methods.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D89935
2020-10-26 15:31:59 +01:00
Kirill Bobyrev 58d0ef2d04 [clangd] Fix remote index build failures due to lack of proto dependency
Previous attempt (15f6bad6d7) introduced
add_dependencies but unfortunately it does not actually add a dependency
between RemoteIndexProto and RemoteIndexServiceProto. This is likely due
to some requirements of it that clang_add_library violates.

As a workaround, we will link RemoteIndexProto library to
RemoteIndexServiceProto which is logical because the library can not be
without linking to RemoteIndexProto anyway.
2020-10-26 14:14:47 +01:00
Kirill Bobyrev 15f6bad6d7
[clangd] Add dependency on remote index service proto
It requires Index.proto to be built first. Failed builds:
https://github.com/clangd/clangd/runs/1305985916
2020-10-26 07:08:49 +01:00
Nathan Ridge aaa8b44d19 [clangd] Add a TestWorkspace utility
TestWorkspace allows easily writing tests involving multiple
files that can have inclusion relationships between them.

BackgroundIndexTest.RelationsMultiFile is refactored to use
TestWorkspace, and moved to FileIndexTest as it no longer
depends on BackgroundIndex.

Differential Revision: https://reviews.llvm.org/D89297
2020-10-24 20:15:17 -04:00
Duncan P. N. Exon Smith 434f3774f6 clangd: Stop calling FileEntryRef::FileEntryRef
In `ReplayPreamble::replay`, use `getFileRef` instead of `getFile`, and
then use that `FileEntryRef` later to avoid needing
`FileEntryRef::FileEntryRef`. The latter is going to become private to
`FileManager` in a later commit.
2020-10-23 21:28:09 -04:00
Kadir Cetinkaya 5dd39923a0
[clangd] Fix remote-server build and add it to check-clangd
Differential Revision: https://reviews.llvm.org/D90047
2020-10-23 18:08:02 +02:00
Sam McCall ce63383e45 [clangd] Drop version from remote index proto names, fix clangd-index-server
We only need to version these messages if they actually diverge.
Unlike the service, the namespace name isn't part of the wire format.

clangd-index-server was broken by 81e5f298c4
as the namespace names weren't updated there, this fixes it (by adding
them for the service, and not requiring them elsewhere).
2020-10-23 15:28:11 +02:00
Sam McCall e6c1c3f97f [clang] Split remote index service definition into a separate file.
This allows it to have a separate namespace (grpc versioned service) without
putting versioning info on all of the other protos (before we need it).

clang-index-server is still broken (from 81e5f298c4).

Differential Revision: https://reviews.llvm.org/D90031
2020-10-23 15:20:51 +02:00
Kirill Bobyrev e6c4d880fa [clangd] NFC: Add using directives to avoid spelling out llvm::sys::path
`llvm::sys::path` is used a lot in the remote index marshalling code. We can save space by avoiding spelling it out explicitly for most functions and times.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D90016
2020-10-23 14:38:31 +02:00
Sam McCall 81f7b2ac0f [CMake] generate_grpc_protos -> generate_protos(... GRPC). NFC
Differential Revision: https://reviews.llvm.org/D90027
2020-10-23 14:28:07 +02:00
Kirill Bobyrev 421a2a0dbb [clangd] Migrate to proto2 syntax
This allows us to check whether enum field is actually sent over the wire or missing.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D89882
2020-10-23 14:27:15 +02:00
Dmitry Polukhin 55a2deed07 [clang-tidy] Fix redefinition of module in the same module.modulemap file
In memory VFS cannot handle aceesssing the same file with different paths.
This diff just stops using VFS for modulemap files.

Fixes PR47839

Differential Revision: https://reviews.llvm.org/D89886
2020-10-23 13:20:18 +01:00
Kirill Bobyrev 68486f9c3a [clangd] Get rid of llvm::Optional in Remote- and LocalIndexRoot; NFC
Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D89852
2020-10-22 21:47:48 +02:00
Kirill Bobyrev 81e5f298c4 [clangd] Give the server information about client's remote index protocol version
And also introduce Protobuf package versioning, it will help to deal
with breaking changes. Inroducing package version itself is a breaking
change, clients and servers need to be updated.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D89862
2020-10-22 21:35:18 +02:00
Duncan P. N. Exon Smith 156e8b3702 clang/Basic: Remove ContentCache::getRawBuffer, NFC
Replace `ContentCache::getRawBuffer` with `getBufferDataIfLoaded` and
`getBufferIfLoaded`, excising another accessor for the underlying
`MemoryBuffer*` in favour of `StringRef` and `MemoryBufferRef`.

Differential Revision: https://reviews.llvm.org/D89445
2020-10-22 14:00:44 -04:00
Alexander Kornienko 37558fd29e [clang-tidy] Add links to check docs in comments 2020-10-22 13:31:21 +02:00
Felix Berger 1c1f794c2b Always allow std::function to be copied.
Since its call operator is const but can modify the state of its underlying
functor we cannot tell whether the copy is necessary or not.

This avoids false positives.

Reviewed-by: aaron.ballman, gribozavr2

Differential Revision: https://reviews.llvm.org/D89332
2020-10-21 17:20:35 -04:00
David Goldman d5c022d846 [clangd][ObjC] Support nullability annotations
Nullability annotations are implmented using attributes; previusly
clangd would skip over AttributedTypeLoc since their location
points to the attribute instead of the modified type.

Also add some test cases for this.

Differential Revision: https://reviews.llvm.org/D89579
2020-10-20 17:36:32 -04:00
Mikhail Maltsev 7819411837 [clang] Use SourceLocation as key in hash maps, NFCI
The patch adjusts the existing `llvm::DenseMap<unsigned, T>` and
`llvm::DenseSet<unsigned>` objects that store source locations, so
that they use `SourceLocation` directly instead of `unsigned`.

This patch relies on the `DenseMapInfo` trait added in D89719.

It also replaces the construction of `SourceLocation` objects from
the constants -1 and -2 with calls to the trait's methods `getEmptyKey`
and `getTombstoneKey` where appropriate.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D69840
2020-10-20 16:24:09 +01:00
Mikhail Maltsev 234c47ae2a [clang][Basic] Make SourceLocation usable as key in hash maps, NFCI
This change creates a `DenseMapInfo` trait specialization for the
SourceLocation class. The empty key, the tombstone key, and the hash
function are identical to `DenseMapInfo<unsigned>`, because we already
have hash maps that use raw the representation of `SourceLocation` as
a key.

The update of existing `DenseMap`s containing raw representation of
`SourceLocation`s will be done in a follow-up patch. As an example
the patch makes use of the new trait in one instance:
clang-tidy/google/UpgradeGoogletestCaseCheck.{h,cpp}

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D89719
2020-10-20 15:52:59 +01:00
Georgii Rymar 6487ffafd1 Reland "[yaml2obj][ELF] - Simplify the code that performs sections validation."
This reverts commit 1b589f4d4d and relands the D89463
with the fix: update `MappingTraits<FileFilter>::validate()` in ClangTidyOptions.cpp to
match the new signature (change the return type to "std::string" from "StringRef").

Original commit message:

This:

Changes the return type of MappingTraits<T>>::validate to std::string
instead of StringRef. It allows to create more complex error messages.

It introduces std::vector<std::pair<StringRef, bool>> getEntries():
a new virtual method of Section, which is the base class for all sections.
It returns names of special section specific keys (e.g. "Entries") and flags that says if them exist in a YAML.
The code in validate() uses this list of entries descriptions to generalize validation.
This approach was discussed in the D89039 thread.

Differential revision: https://reviews.llvm.org/D89463
2020-10-20 16:25:33 +03:00
Aleksandr Platonov d99b2a976a [clangd][remote] Add Windows paths support
Without this patch 6 marshalling tests fail on Windows.
This patch contains the following changes:
- Allow paths with Windows slashes (convert to the POSIX style instead of assertion)
- Add support for URI with Windows path.
- Change the value of the second parameter of several `llvm::sys::path::convert_to_slash()` calls: we should use `windows` instead of `posix` to ensure UNIX slashes in the path.
- Port `RemoteMarshallingTest::IncludeHeaderURI` test to Windows.

Reviewed By: kbobyrev

Differential Revision: https://reviews.llvm.org/D89529
2020-10-20 13:04:20 +03:00
Kirill Bobyrev 691eb814c1
[clangd] NFC: Resolve Clang-Tidy warnings in Protocol.cpp
Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D89771
2020-10-20 11:23:40 +02:00
Richard Smith c7a7bba8c1 Fixup clang-tidy after recent Clang change. 2020-10-19 20:13:56 -07:00
Duncan P. N. Exon Smith b3eff6b7bb Lexer: Update the Lexer to use MemoryBufferRef, NFC
Update `Lexer` / `Lexer::Lexer` to use `MemoryBufferRef` instead of
`MemoryBuffer*`. Callers that were acquiring a `MemoryBuffer*` via
`SourceManager::getBuffer` were updated, such that if they checked
`Invalid` they use `getBufferOrNone` and otherwise `getBufferOrFake`.

Differential Revision: https://reviews.llvm.org/D89398
2020-10-19 19:10:21 -04:00
Yaxun (Sam) Liu 52bcd691cb Recommit "[CUDA][HIP] Defer overloading resolution diagnostics for host device functions"
This recommits 7f1f89ec8d and
40df06cdaf with bug fixes for
memory sanitizer failure and Tensile build failure.
2020-10-19 17:48:04 -04:00
Nathan James 86ef379800
[clang-tidy] Add scoped enum constants to identifier naming check
Added option `ScopedEnumConstant(Prefix|Case|Suffix)` to readability-identitied-naming.
This controls the style for constants in scoped enums, declared as enum (class|struct).
If this option is unspecified the EnumConstant style will be used instead.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D89407
2020-10-19 15:57:47 +01:00
Sam McCall cf814fcd39 [clangd] Add test for structured-binding completion. NFC 2020-10-19 16:45:51 +02:00
Aaron Ballman b91a236ee1 Revert "Extend tests of run-clang-tidy"
This reverts commit 627c01bee0.

Some failing build bots:
http://lab.llvm.org:8011/#/builders/109/builds/690
http://lab.llvm.org:8011/#/builders/14/builds/476
2020-10-19 10:37:22 -04:00
Alexander Lanin 627c01bee0 Extend tests of run-clang-tidy
new test: parsing and using compile_commands
new test: export fixes to yaml file
old test extended with CHECK-MESSAGES in order to ensure that they "fail as intended"
2020-10-19 10:29:08 -04:00
Nathan James 866dc09784
[clang-tidy] Better support for Override function in RenamerClangTidy based checks
Methods that override virtual methods will now get renamed if the initial virtual method has a name violation.
Addresses https://bugs.llvm.org/show_bug.cgi?id=34879

Reviewed By: alexfh

Differential Revision: https://reviews.llvm.org/D79674
2020-10-19 15:21:06 +01:00
Kadir Cetinkaya 4074914103
[clangd] Rename edge name for filesymbols to slabs in memorytree
This was causing duplicate `symbols` components on the path as both the
edge from an index to filesymbols and filesymbols to symbolslabs were named
symbols.

Differential Revision: https://reviews.llvm.org/D89685
2020-10-19 16:09:46 +02:00
Nathan James accda625b8
[nfc][clang-change-namespace] Remove unnecessary isScoped EnumDecl Matcher 2020-10-19 12:53:51 +01:00
Kadir Cetinkaya d0f287464d
[clangd] Add $/memoryUsage LSP extension
Performs a detailed profiling of clangd lsp server and conveys the
result to the client as a json object. It is of the form:
   {
     "_self": 0,
     "_total": 8,
     "child1": {
       "_self": 4,
       "_total": 4,
     }
     "child2": {
       "_self": 2,
       "_total": 4,
       "child_deep": {
         "_self": 2,
         "_total": 2,
       }
     }
   }

Differential Revision: https://reviews.llvm.org/D89277
2020-10-19 12:30:25 +02:00
Nathan James ce619f645f
[NFC][clang-tidy] Use isInStdNamespace matcher instead of check defined alternatives 2020-10-18 16:02:11 +01:00
Nathan James 5f88c3b639
[clang tidy] Fix SIMDIntrinsicsCheck not storing options 2020-10-18 15:56:39 +01:00
Nathan James 8a548bc203
[clang-tidy] modernize-loop-convert reverse iteration support
Enables support for transforming loops of the form
```
for (auto I = Cont.rbegin(), E = Cont.rend(); I != E;++I)
```

This is done automatically in C++20 mode using `std::ranges::reverse_view` but there are options to specify a different function to reverse iterator over a container.
This is the first step, down the line I'd like to possibly extend this support for array based loops
```
for (unsigned I = Arr.size() - 1;I >=0;--I) Arr[I]...
```

Currently if you pass a reversing function with no header in the options it will just assume that the function exists, however as we have the ASTContext it may be as wise to check before applying, or at least lower the confidence level if we can't find it.

Reviewed By: alexfh

Differential Revision: https://reviews.llvm.org/D82089
2020-10-16 14:16:30 +01:00
Alexander Kornienko cc175c2cc8 Support ObjC in IncludeInserter
Update IncludeSorter/IncludeInserter to support objective-c google style (part 1):

1) Correctly consider .mm/.m extensions
2) Correctly categorize category headers.
3) Add support for generated files to go in a separate section of imports

Reviewed By: alexfh, gribozavr2

Patch by Joe Turner.

Differential Revision: https://reviews.llvm.org/D89276
2020-10-16 04:12:32 +02:00
Duncan P. N. Exon Smith 0065198166 clang-{tools,unittests}: Stop using SourceManager::getBuffer, NFC
Update clang-tools-extra, clang/tools, clang/unittests to migrate from
`SourceManager::getBuffer`, which returns an always dereferenceable
`MemoryBuffer*`, to `getBufferOrNone` or `getBufferOrFake`, both of
which return a `MemoryBufferRef`, depending on whether the call site was
checking for validity of the buffer. No functionality change intended.

Differential Revision: https://reviews.llvm.org/D89416
2020-10-15 00:35:16 -04:00
Duncan P. N. Exon Smith d758f79e5d clang/Basic: Replace ContentCache::getBuffer with Optional semantics
Remove `ContentCache::getBuffer`, which always returned a
dereferenceable `MemoryBuffer*` and had a `bool*Invalid` out parameter,
and replace it with:

- `ContentCache::getBufferOrNone`, which returns
  `Optional<MemoryBufferRef>`. This is the new API that consumers should
  use. Later it could be renamed to `getBuffer`, but intentionally using
  a different name to root out any unexpected callers.
- `ContentCache::getBufferPointer`, which returns `MemoryBuffer*` with
  "optional" semantics. This is `private` to avoid growing callers and
  `SourceManager` has temporarily been made a `friend` to access it.
  Later paches will update the transitive callers to not need a raw
  pointer, and eventually this will be deleted.

No functionality change intended here.

Differential Revision: https://reviews.llvm.org/D89348
2020-10-14 15:55:18 -04:00
Kadir Cetinkaya fc2fb60bab
[clangd] clang-format TweakTests, NFC 2020-10-14 18:14:27 +02:00
Kadir Cetinkaya 82a71822a5
[clangd] Disable extract variable for RHS of assignments
Differential Revision: https://reviews.llvm.org/D89307
2020-10-14 14:22:47 +02:00
Haojian Wu 3fcca804b2 [clangd] Refine recoveryAST flags in clangd
so that we could start experiment for C.

Previously, these flags in clangd were only meaningful for C++. We need
to flip them for C, this patch repurpose these flags.

- if true, just set it.
- if false, just respect the value in clang.

this would allow us to keep flags on for C++, and optionally flip them on for C.

Differential Revision: https://reviews.llvm.org/D89233
2020-10-14 13:42:11 +02:00
Nathan Ridge cb3c13fab6 [clangd] Propagate CollectMainFileRefs to BackgroundIndex
This appears to have been an omission in D83536.

Differential Revision: https://reviews.llvm.org/D89284
2020-10-13 09:20:18 -04:00
Sylvestre Ledru 002968a320 [clang-tidy] Add an example for misc-unused-alias-decls
Differential Revision: https://reviews.llvm.org/D89270
2020-10-13 13:56:04 +02:00
Nathan Ridge b764edc59f [clangd] Try harder to get accurate ranges for documentSymbols in macros
Fixes https://github.com/clangd/clangd/issues/500

Differential Revision: https://reviews.llvm.org/D88463
2020-10-12 19:26:36 -04:00
Nathan Ridge 1b962fdd5f [clangd] Heuristic resolution for dependent type and template names
Fixes https://github.com/clangd/clangd/issues/543

Differential Revision: https://reviews.llvm.org/D88469
2020-10-12 13:37:22 -04:00
Haojian Wu 16a4b0f0e3 [clangd] Disable a failure TopLevelDecls test.
The test fails on clang-ppc64le-rhel buildbot, needs further
investigation.
2020-10-12 16:03:52 +02:00
Haojian Wu b144cd867b Dump decl when the test matcher fails. 2020-10-12 15:42:18 +02:00
Kadir Cetinkaya 35871fde55
[clangd] Record memory usages after each notification
Depends on D88415

Differential Revision: https://reviews.llvm.org/D88417
2020-10-12 15:25:29 +02:00
Kadir Cetinkaya 20f69ccfe6
[clangd] Add a helper for exposing tracer status 2020-10-12 15:25:29 +02:00
Kadir Cetinkaya 23a53301c5
[clangd] Introduce memory usage dumping to TUScheduler, for Preambles and ASTCache
File-granular information is considered details.

Depends on D88411

Differential Revision: https://reviews.llvm.org/D88415
2020-10-12 15:25:29 +02:00
Kadir Cetinkaya a74d594948
[clangd] Introduce memory dumping to FileIndex, FileSymbols and BackgroundIndex
File-granular information is considered details.

Depends on D88411

Differential Revision: https://reviews.llvm.org/D88414
2020-10-12 15:25:29 +02:00
Kadir Cetinkaya c9d2876da9
[clangd] Add a metric for tracking memory usage
Differential Revision: https://reviews.llvm.org/D88413
2020-10-12 15:25:29 +02:00
Kadir Cetinkaya f9317f7bf6
[clangd] Introduce MemoryTrees
A structure that can be used to represent memory usage of a nested
set of systems.

Differential Revision: https://reviews.llvm.org/D88411
2020-10-12 15:25:29 +02:00
Alexander Kornienko 1968a6155f [clang-tidy] Fix IncludeInserter usage example in a comment. 2020-10-12 15:05:42 +02:00
Kadir Cetinkaya 9407686687
[clangd][NFC] Fix formatting in ClangdLSPServer 2020-10-12 14:24:44 +02:00
Sam McCall 8f1de22c76 [clangd] Stop capturing trace args if the tracer doesn't need them.
The tracer is now expected to allocate+free the args itself.

Differential Revision: https://reviews.llvm.org/D89135
2020-10-12 13:43:05 +02:00
Sam McCall c2d4280328 [clangd] Validate optional fields more strictly.
Differential Revision: https://reviews.llvm.org/D89131
2020-10-12 13:01:59 +02:00
Haojian Wu f1bf41e433 Fix buildbot failure for 702529d899. 2020-10-12 12:04:44 +02:00
Haojian Wu 702529d899 [clang] Fix returning the underlying VarDecl as top-level decl for VarTemplateDecl.
Given the following VarTemplateDecl AST,

```
VarTemplateDecl col:26 X
|-TemplateTypeParmDecl typename depth 0 index 0
`-VarDecl X 'bool' cinit
  `-CXXBoolLiteralExpr 'bool' true
```

previously, we returned the VarDecl as the top-level decl, which was not
correct, the top-level decl should be VarTemplateDecl.

Differential Revision: https://reviews.llvm.org/D89098
2020-10-12 10:46:18 +02:00
Nathan Ridge f82346fd73 [clangd] Avoid relations being overwritten in a header shard
Fixes https://github.com/clangd/clangd/issues/510

Differential Revision: https://reviews.llvm.org/D87256
2020-10-11 15:32:54 -04:00
Zinovy Nis 32d565b461 [clang-tidy] Fix crash in readability-function-cognitive-complexity on weak refs
Fix for https://bugs.llvm.org/show_bug.cgi?id=47779

Differential Revision: https://reviews.llvm.org/D89194
2020-10-11 18:52:38 +03:00
Benjamin Kramer 0db08e59c9 [clangd] Map bits/stdint-intn.h and bits/stdint-uintn.h to cstdint.
These are private glibc headers containing parts of the implementation
of stdint.h.
2020-10-10 14:13:42 +02:00
Sam McCall 41d2987c75 [clangd] Stop logging in fromJSON, report instead. 2020-10-09 16:15:45 +02:00
Alexander Kornienko fe4715c47f Remove old create(MainFile)?IncludeInsertion overloads
Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D89117
2020-10-09 15:24:57 +02:00
Sam McCall 7530b254e9 [clangd] Make the tweak filter a parameter to enumerateTweaks. NFC
(Required for CodeActionContext.only)

Differential Revision: https://reviews.llvm.org/D88724
2020-10-09 14:11:19 +02:00
Sam McCall 6ee47f552b [clangd] Fix dead variable, typo. NFC 2020-10-09 10:26:58 +02:00
Kadir Cetinkaya 6f1a56d37a
[clangd] Enable partial namespace matches for workspace symbols
This will enable queries like "clangd::" to find symbols under clangd
namespace, without requiring full "clang::clangd::" qualification.

Since Fuzzyfind performs the search under all scopes and only boosts the symbols
from relevant namespaces, we might get symbols from non-matching namespaces.
This patch chooses to drop those as they clearly do not match the query.

Fixes https://github.com/clangd/clangd/issues/550.

Differential Revision: https://reviews.llvm.org/D88814
2020-10-09 10:20:41 +02:00
Kadir Cetinkaya 2ff44935a5
[clangd] Reduce availability of extract function
This patch introduces hoisting detection logic into prepare state with
a partial AST traversal of the enclosing function.

We had some complaints from the users about this code action being almost always
available but failing most of the time. Hopefully this should reduce that noise.

The latency/correctness tradeoff is a bunch of hand-waving, but at least today
we don't have any other actions that are available on selection of statements,
so when we get to do the traversal it is quite likely that all the other checks
will bail out early. But this is still up for discussion, I am happy to abandon
the patch if you believe this is not practical.

Differential Revision: https://reviews.llvm.org/D85354
2020-10-09 10:12:48 +02:00
Haojian Wu efd8c9ed72 [clangd] Add more incomplete_type diagnostics that could be fixed by include-fixer.
Differential Revision: https://reviews.llvm.org/D89036
2020-10-09 08:51:18 +02:00
Utkarsh Saxena a0a6fd435c [clangd] New CC Ranking Model to fix bad inference due to overflow.
Unreachable file distances are represented as
`std::numeric_limits<unsigned>::max()`.
The previous dataset recorded the signals as `signed int` capturing this default
value as `-1`.

A new dataset was regenerated and a new model is trained that
interprets this unreachable as the intended value.

Distribution of `SymbolScopeDistance`:
Value         Normalised Frequency
0             46.6184
4294967295    29.5342
6             14.5666
4              6.4433
2              1.4534
8              0.5760
10             0.3581
....

Distribution of `FileProximityDistance`:
Value         Normalised Frequency
4294967295    39.9378
12             5.1997
14             4.9828
15             4.4221
16             4.3820
13             4.2765
17             3.8957
11             3.6387
19             3.4799
18             3.4076
....

Differential Revision: https://reviews.llvm.org/D89035
2020-10-08 15:30:00 +02:00
Haojian Wu a4e27220c2 [clangd] Add a missing include-fixer test for incomplete_type, NFC.
Also sort the list to make it easier to verify with the implementation
code.

Differential Revision: https://reviews.llvm.org/D88964
2020-10-08 13:33:38 +02:00
Haojian Wu ba268d2fb0 [clangd] Fix a typo, NFC. 2020-10-08 09:35:49 +02:00
Haojian Wu 9c09e2055e [clangd] Add a NewName optional parameter to clangdServer::prepareRename.
If the NewName is provided, prepareRename would perform a name
validation.

The motivation is to allow our internal embeder implement the customized
"canRenameInto" functionality on top of prepareRename.

Differential Revision: https://reviews.llvm.org/D88881
2020-10-07 21:18:51 +02:00
Sam McCall 69daa368ca [clangd] Disambiguate overloads of std::move for header insertion.
Up until now, we relied on matching the filename.
This depends on unstable details of libstdc++ and doesn't work well on other
stdlibs. Also we'd like to remove it (see D88204).

Differential Revision: https://reviews.llvm.org/D88885
2020-10-07 19:42:41 +02:00
Adam Czachorowski bcd8422d75 [clangd] Fix argument type (bool->float).
The default value is 1.3f, but it was cast to true, which is not a good
base for code completion score.

Differential Revision: https://reviews.llvm.org/D88970
2020-10-07 17:22:00 +02:00
Haojian Wu f24649b77d [clangd] Don't set the Underlying bit on targets of UsingDecls.
With this patch, we don't treat `using ns::X` as a first-class declaration like `using Z = ns::Y`, reference to X that goes through this using-decl is considered a direct reference (without the Underlying bit).

Fix the workaround in https://reviews.llvm.org/D87225 and https://reviews.llvm.org/D74054.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D88472
2020-10-07 10:01:04 +02:00
Haojian Wu 8a3cbb1535 [clangd] Add basic keyword-name-validation in rename.
Differential Revision: https://reviews.llvm.org/D88875
2020-10-06 15:47:57 +02:00
Adam Balogh d6c9dc3c17 [clang-tidy] Remove obsolete checker google-runtime-references
The rules which is the base of this checker is removed from the
//Google C++ Style Guide// in May:
[[ https://github.com/google/styleguide/pull/553 | Update C++ styleguide ]].
Now this checker became obsolete.

Differential Revision: https://reviews.llvm.org/D88831
2020-10-06 14:03:55 +02:00
Sam McCall 3cb1220709 [clangd] Add `score` extension to workspace/symbol response.
The protocol doesn't really incorporate ranking.
As with code completion, most clients respect what the server sends, but
VSCode re-ranks items, with predictable results.
See https://github.com/clangd/vscode-clangd/issues/81

There's no filterText field so we may be unable to construct a good workaround.
But expose the score so we may be able to do this on the client in future.

Differential Revision: https://reviews.llvm.org/D88844
2020-10-06 11:57:38 +02:00
Haojian Wu 48a82c4245 [clangd] Verify the diagnostic code in include-fixer diagnostic tests, NFC.
Make it easier to spot which diagnostics in the include-fixer list are tested.

Differential Revision: https://reviews.llvm.org/D88828
2020-10-06 11:02:22 +02:00
Haojian Wu 77d3b14458 [clangd] Fix an inconsistent ReasonToReject enum usage, NFC. 2020-10-06 10:17:47 +02:00
Sam McCall 95262ee2be [clangd] Describe non-handling of most IWYU pragmas. NFC
Differential Revision: https://reviews.llvm.org/D88822
2020-10-05 20:50:26 +02:00
Haojian Wu 1425c72236 [clangd] Add isKeyword function.
This will be used in rename for doing basic name validation.

Differential Revision: https://reviews.llvm.org/D88810
2020-10-05 15:11:24 +02:00
Haojian Wu 96c8a17c80 [clangd] Remove unused using-decls in TypeHierarchyTests, NFC. 2020-10-05 13:14:53 +02:00
Aaron Ballman 089e628b61 Add a break statement to appease the build bots; NFC 2020-10-03 11:10:26 -04:00
Bernhard Manfred Gruber 07028cd5db modernize-use-trailing-return-type fix for PR44206
Prevent rewrite when an unqualified id in a typedef type collides
with a function argument name. Fixes PR44206.
2020-10-03 10:08:44 -04:00
Roman Lebedev 1596cc8350
[NFCI][clang-tidy] FunctionCognitiveComplexityCheck::check(): try to fix windows arm build bots
http://lab.llvm.org:8011/builders/llvm-clang-win-x-armv7l/builds/1482/steps/build-llvm-project/logs/stdio
http://lab.llvm.org:8011/builders/llvm-clang-win-x-aarch64/builds/3285/steps/build-llvm-project/logs/stdio
2020-10-03 16:02:19 +03:00
Roman Lebedev ace644030e
[clang-tidy] Implement readability-function-cognitive-complexity check
Currently, there is basically just one clang-tidy check to impose
some sanity limits on functions - `clang-tidy-readability-function-size`.
It is nice, allows to limit line count, total number of statements,
number of branches, number of function parameters (not counting
implicit `this`), nesting level.

However, those are simple generic metrics. It is still trivially possible
to write a function, which does not violate any of these metrics,
yet is still rather unreadable.

Thus, some additional, slightly more complicated metric is needed.
There is a well-known [[ https://en.wikipedia.org/wiki/Cyclomatic_complexity | Cyclomatic complexity]], but certainly has its downsides.
And there is a [[ https://www.sonarsource.com/docs/CognitiveComplexity.pdf | COGNITIVE COMPLEXITY by SonarSource ]], which is available for opensource on https://sonarcloud.io/.

This check checks function Cognitive Complexity metric, and flags
the functions with Cognitive Complexity exceeding the configured limit.
The default limit is `25`, same as in 'upstream'.

The metric is implemented as per [[ https://www.sonarsource.com/docs/CognitiveComplexity.pdf | COGNITIVE COMPLEXITY by SonarSource ]] specification version 1.2 (19 April 2017), with two notable exceptions:
   * `preprocessor conditionals` (`#ifdef`, `#if`, `#elif`, `#else`,
     `#endif`) are not accounted for.
      Could be done. Currently, upstream does not account for them either.
   * `each method in a recursion cycle` is not accounted for.
      It can't be fully implemented, because cross-translational-unit
      analysis would be needed, which is not possible in clang-tidy.
      Thus, at least right now, i completely avoided implementing it.

There are some further possible improvements:
* Are GNU statement expressions (`BinaryConditionalOperator`) really free?
  They should probably cause nesting level increase,
  and complexity level increase when they are nested within eachother.
* Microsoft SEH support
* ???

Reviewed By: aaron.ballman, JonasToth, lattner

Differential Revision: https://reviews.llvm.org/D36836
2020-10-03 00:27:13 +03:00
Utkarsh Saxena db2a646c5f [clangd] Add bencmark for measuring latency of DecisionForest model.
Differential Revision: https://reviews.llvm.org/D88590
2020-10-02 18:04:31 +02:00
Haojian Wu 0f0cbcc4b1 [clangd] Extend the rename API.
several changes:
- return a structure result in rename API;
- prepareRename now returns more information (main-file occurrences);
- remove the duplicated detecting-touch-identifier code in prepareRename (which is implemented in rename API);

Differential Revision: https://reviews.llvm.org/D88634
2020-10-02 16:03:44 +02:00
Sam McCall 57ac47d788 [clangd] Make PopulateSwitch a fix.
It fixes the -Wswitch warning, though we mark it as a fix even if that is off.
This makes it the "recommended" action on an incomplete switch, which seems OK.

Differential Revision: https://reviews.llvm.org/D88726
2020-10-02 13:24:24 +02:00
Kadir Cetinkaya 54c03d8f7d
[clangd][lit] Update document-link.test to respect custom resource-dir locations
Differential Revision: https://reviews.llvm.org/D88721
2020-10-02 12:24:06 +02:00
Sam McCall 17747d2ec8 [clangd] Remove Tweak::Intent, use CodeAction kind directly. NFC
Intent was a nice idea but it ends up being a bit awkward/heavyweight
without adding much.

In particular, it makes it hard to implement `CodeActionParams.only` properly
(there's an inheritance hierarchy for kinds).

Differential Revision: https://reviews.llvm.org/D88427
2020-10-02 11:14:23 +02:00
Sam McCall bc18d8d9b7 [clangd] Drop dependence on standard library in check.test 2020-10-02 09:53:06 +02:00
Florian Mayer 9d40fb808f Allow to specify macro names for android-comparison-in-temp-failure-retry
Some projects do not use the TEMP_FAILURE_RETRY macro but define their
own one, as not to depend on glibc / Bionic details. By allowing the
user to override the list of macros, these projects can also benefit
from this check.

Differential Revision: https://reviews.llvm.org/D83144
2020-10-01 10:09:26 -07:00
Utkarsh Saxena 45698ac005 [clangd] Split DecisionForest Evaluate() into one func per tree.
This allows us MSAN to instrument this function. Previous version is not
instrumentable due to it shear volume.

Differential Revision: https://reviews.llvm.org/D88536
2020-10-01 18:07:23 +02:00
Sam McCall f6b1323bc6 Reland [clangd] clangd --check: standalone diagnosis of common problems
This reverts commit 30d07b14a2.

Test failures have (hopefully) been fixed.
2020-10-01 16:18:18 +02:00
Sam McCall 30d07b14a2 Revert "[clangd] clangd --check: standalone diagnosis of common problems"
This reverts commit 79fbcbff41.

The fallback command fails to parse for the test files if there's no
compile_commands.json in the tree.
2020-10-01 16:10:03 +02:00
Sam McCall 79fbcbff41 [clangd] clangd --check: standalone diagnosis of common problems
This is a tool to simply parse a file as clangd would, and run some
common features (code actions, go-to-definition, hover) in an attempt to
trigger or reproduce crashes, error diagnostics, etc.

This is easier and more predictable than loading the file in clangd, because:
 - there's no editor/plugin variation to worry about
 - there's no accidental variation of user behavior or other extraneous requests
 - we trigger features at every token, rather than guessing
 - everything is synchronoous, logs are easier to reason about
 - it's easier to (get users to) capture logs when running on the command-line

This is a fairly lightweight variant of this idea.
We could do a lot more with it, and maybe we should.
But I can't in the near future, and experience will tell us if we made
the right tradeoffs and if it's worth investing further.

Differential Revision: https://reviews.llvm.org/D88338
2020-10-01 15:47:47 +02:00
Sam McCall 85fc5bf341 [clangd] Remove dead variable. NFC 2020-09-30 23:19:15 +02:00
Sam McCall 216af81c39 [clangd] Fix invalid UTF8 when extracting doc comments.
Differential Revision: https://reviews.llvm.org/D88567
2020-09-30 16:05:12 +02:00
Kadir Cetinkaya 64e8fd540e
[clangd][remote] Make sure relative paths are absolute with respect to posix style
Relative paths received from the server are always in posix style. So
we need to ensure they are relative using that style, and not the native one.

Differential Revision: https://reviews.llvm.org/D88507
2020-09-30 11:08:49 +02:00
Sam McCall d99f46c6eb [clangd] Fix fuzzer build after 7ba0779fbb 2020-09-30 11:02:05 +02:00
Sam McCall 6342b38c5f [clangd] Fix member/type name conflict caught by buildbots. 2020-09-30 10:56:43 +02:00
Sam McCall 8392685c2b [clangd] Mark code action as "preferred" if it's the sole quickfix action
Differential Revision: https://reviews.llvm.org/D88489
2020-09-30 10:11:30 +02:00
Sam McCall 7ba0779fbb [clangd] Extract options struct for ClangdLSPServer. NFC
In preparation for making moving TweakFilter from ClangdServer::Options to
a ClangdLSPServer option, and letting it vary per-request.
(In order to implement CodeActionParams.only)

Also a general overdue cleanup.

Differential Revision: https://reviews.llvm.org/D88470
2020-09-30 10:09:52 +02:00
Nathan James 01a30fa678
[clangd] Trivial setter support when moving items to fields
Extend the Trivial setter documentation to support cases where the value is moved into a field using `std::move`.

Reviewed By: sammccall, kadircet

Differential Revision: https://reviews.llvm.org/D88297
2020-09-29 21:51:15 +01:00
Kadir Cetinkaya 962a247aeb
[clangd] Fix assertion in remote-index marshalling
convert_to_slash is a no-op on posix style.
2020-09-29 20:40:19 +02:00
Aleksandr Platonov d8ba6b4ab3 [clangd] findNearbyIdentifier(): guaranteed to give up after 2^N lines
As @kadircet mentions in D84912#2184144, `findNearbyIdentifier()` traverses the whole file if there is no identifier for the word.
This patch ensures give up after 2^N lines in any case.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D87891
2020-09-29 19:54:55 +03:00
Utkarsh Saxena a9f63d22fa [clangd] Disable msan instrumentation for generated Evaluate().
MSAN build times out for generated DecisionForest inference runtime.

A solution worth trying is splitting the function into 300 smaller
functions and then re-enable msan.

For now we are disabling instrumentation for the generated function.

Differential Revision: https://reviews.llvm.org/D88495
2020-09-29 17:44:10 +02:00
Tadeo Kondrak 4fb303f340 [clangd] Improve PopulateSwitch tweak to work on non-empty switches
Improve the recently-added PopulateSwitch tweak to work on non-empty switches.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D88434
2020-09-29 16:37:51 +02:00
Nathan Ridge cc6d1f8029 [clangd] When finding refs for a renaming alias, do not return refs to underlying decls
Fixes https://github.com/clangd/clangd/issues/515

Differential Revision: https://reviews.llvm.org/D87225
2020-09-28 21:18:31 -04:00
Utkarsh Saxena 9b1666f3ce [clangd] Rename evaluate() to evaluateHeuristics()
Since we have 2 scoring functions (heuristics and decision forest),
renaming the existing evaluate() function to be more descriptive of the
Heuristics being evaluated in it.

Differential Revision: https://reviews.llvm.org/D88431
2020-09-28 20:05:01 +02:00
Utkarsh Saxena a8b55b6939 [clangd] Use Decision Forest to score code completions.
By default clangd will score a code completion item using heuristics model.

Scoring can be done by Decision Forest model by passing `--ranking_model=decision_forest` to
clangd.

Features omitted from the model:
- `NameMatch` is excluded because the final score must be multiplicative in `NameMatch` to allow rescoring by the editor.
- `NeedsFixIts` is excluded because the generating dataset that needs 'fixits' is non-trivial.

There are multiple ways (heuristics) to combine the above two features with the prediction of the DF:
- `NeedsFixIts` is used as is with a penalty of `0.5`.

Various alternatives of combining NameMatch `N` and Decision forest Prediction `P`
- N * scale(P, 0, 1): Linearly scale the output of model to range [0, 1]
- N * a^P:
  - More natural: Prediction of each Decision Tree can be considered as a multiplicative boost (like NameMatch)
  - Ordering is independent of the absolute value of P. Order of two items is proportional to `a^{difference in model prediction score}`. Higher `a` gives higher weightage to model output as compared to NameMatch score.

Baseline MRR = 0.619
MRR for various combinations:
N * P = 0.6346, advantage%=2.5768
N * 1.1^P = 0.6600, advantage%=6.6853
N * **1.2**^P = 0.6669, advantage%=**7.8005**
N * **1.3**^P = 0.6668, advantage%=**7.7795**
N * **1.4**^P = 0.6659, advantage%=**7.6270**
N * 1.5^P = 0.6646, advantage%=7.4200
N * 1.6^P = 0.6636, advantage%=7.2671
N * 1.7^P = 0.6629, advantage%=7.1450
N * 2^P = 0.6612, advantage%=6.8673
N * 2.5^P = 0.6598, advantage%=6.6491
N * 3^P = 0.6590, advantage%=6.5242
N * scaled[0, 1] = 0.6465, advantage%=4.5054

Differential Revision: https://reviews.llvm.org/D88281
2020-09-28 18:59:29 +02:00
Utkarsh Saxena b5f7e9e26c [clangd] Add a trained DecisionForest for code completion.
Replaces the dummy CodeCompletion model with a trained DecisionForest
model.
The features.json needs to be manually curated specifying the features
to be used. This is a one-time cost and does not change if the model
changes until we decide to add/remove features.

Differential Revision: https://reviews.llvm.org/D88071
2020-09-28 18:35:10 +02:00
Alexander Kornienko fdfe324da1 [clang-tidy] IncludeInserter: allow <> in header name
This adds a pair of overloads for create(MainFile)?IncludeInsertion methods that
use the presence of the <> in the file name to control whether the #include
directive will use angle brackets or quotes. Motivating examples:
https://reviews.llvm.org/D82089#inline-789412 and
https://github.com/llvm/llvm-project/blob/master/clang-tools-extra/clang-tidy/modernize/MakeSmartPtrCheck.cpp#L433

The overloads with the IsAngled parameter can be removed after the users are
updated.

Update usages of createIncludeInsertion.

Update (almost all) usages of createMainFileIncludeInsertion.

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85666
2020-09-28 15:14:04 +02:00
Tadeo Kondrak 018066d947 [clangd] Add a tweak for filling in enumerators of a switch statement.
Add a tweak that populates an empty switch statement of an enumeration type with all of the enumerators of that type.

Before:
```
enum Color { RED, GREEN, BLUE };
void f(Color color) {
  switch (color) {}
}
```

After:
```
enum Color { RED, GREEN, BLUE };
void f(Color color) {
  switch (color) {
  case RED:
  case GREEN:
  case BLUE:
    break;
  }
}
```

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D88383
2020-09-28 13:37:18 +02:00
Whisperity 9d2ef5e74e [CMake][CTE] Add "check-clang-extra-..." targets to test only a particular Clang extra tool
Create targets `check-clang-extra-clang-tidy`, `check-clang-extra-clang-query`
similar to how `check-clang-sema`, `check-clang-parser`, etc. are
auto-generated from the directory structure.

This allows running only a particular sub-tool's tests, not having to wait
through the entire `check-clang-tools` execution.

Differential Revision: http://reviews.llvm.org/D84176
2020-09-25 13:32:56 +02:00
Reid Kleckner 3453b6928d Revert "Recommit "[CUDA][HIP] Defer overloading resolution diagnostics for host device functions""
This reverts commit e39da8ab6a.

This depends on a change that needs additional design review and needs
to be reverted.
2020-09-24 11:16:54 -07:00
Yaxun (Sam) Liu e39da8ab6a Recommit "[CUDA][HIP] Defer overloading resolution diagnostics for host device functions"
This recommits 7f1f89ec8d and
40df06cdaf after fixing memory
sanitizer failure.
2020-09-24 08:44:37 -04:00
Sam McCall 00e05b12c7 [clangd] Reorder a little bit of init code. NFC
This makes it possible to do something else (run checks) instead of
starting the server, with all config applied.
2020-09-24 11:57:31 +02:00
Sam McCall 98756d865b [clangd] Fix comment. NFC 2020-09-24 10:49:39 +02:00
Kadir Cetinkaya 64168c6d99
[clangd] Disable suffix matching fallback for C during include insertion
Clangd currently doesn't respect language and breaks the builds with
include insertion for C. This patch aims to stop the bleeding by not mapping
back to CPP standard library headers.

Improves https://github.com/clangd/clangd/issues/376.

Differential Revision: https://reviews.llvm.org/D88144
2020-09-24 10:46:10 +02:00
Sam McCall 2bd5e3fb3c [clangd] Improve bad-RPC-payload error messages slightly 2020-09-24 01:51:37 +02:00
Sam McCall fa69b60806 [JSON] Add error reporting to fromJSON and ObjectMapper
Translating between JSON objects and C++ strutctures is common.
From experience in clangd, fromJSON/ObjectMapper work well and save a lot of
code, but aren't adopted elsewhere at least partly due to total lack of error
reporting beyond "ok"/"bad".

The recently-added error model should be rich enough for most applications.
It requires tracking the path within the root object and reporting local
errors at appropriate places.
To do this, we exploit the fact that the call graph of recursive
parse functions mirror the structure of the JSON itself.
The current path is represented as a linked list of segments, each of which is
on the stack as a parameter. Concretely, fromJSON now looks like:
  bool fromJSON(const Value&, T&, Path);

Beyond the signature change, this is reasonably unobtrusive: building
the path segments is mostly handled by ObjectMapper and the vector<T> fromJSON.
However the root caller of fromJSON must now create a Root object to
store the errors, which is a little clunky.

I've added high-level parse<T>(StringRef) -> Expected<T>, but it's not
general enough to be the primary interface I think (at least, not usable in
clangd).

All existing users (mostly just clangd) are updated in this patch,
making this change backwards-compatible is a bit hairy.

Differential Revision: https://reviews.llvm.org/D88103
2020-09-24 01:20:09 +02:00
Utkarsh Saxena 158af0d3d1 [clangd] Refactor code completion signal's utility properties.
Current implementation of heuristic-based scoring function also contains
computation of derived signals (e.g. whether name contains a word from
context, computing file distances, scope distances.)
This is an attempt to separate out the logic for computation of derived
signals from the scoring function.
This will allow us to have a clean API for scoring functions that will
take only concrete code completion signals as input.

Differential Revision: https://reviews.llvm.org/D88146
2020-09-23 16:12:18 +02:00
Nathan Ridge aa3c7638ba [clang] Traverse init-captures while indexing
Fixes https://github.com/clangd/clangd/issues/496

Differential Revision: https://reviews.llvm.org/D87257
2020-09-22 02:32:09 -04:00
Nathan Ridge f18f8f34d3 [clangd] Link libclangdSupport into clangd-index-server
Fixes https://github.com/clangd/clangd/issues/534

Differential Revision: https://reviews.llvm.org/D87979
2020-09-22 02:28:48 -04:00
Adam Balogh 4fc0214a10 [clang-tidy] New check cppcoreguidelines-prefer-member-initializer
Finds member initializations in the constructor body which can be placed
into the initialization list instead. This does not only improves the
readability of the code but also affects positively its performance.
Class-member assignments inside a control statement or following the
first control statement are ignored.

Differential Revision: https://reviews.llvm.org/D71199
2020-09-21 14:42:58 +02:00
Nathan Ridge 90a8c44d92 [clangd] Fix typo in field name
Differential Revision: https://reviews.llvm.org/D87995
2020-09-20 19:52:39 -04:00
Utkarsh Saxena 985deba931 Revert "Temporarily Revert "[clangd] Add Random Forest runtime for code completion.""
We intend to replace heuristics based code completion ranking with a Decision Forest Model.

This patch introduces a format for representing the model and an inference runtime that is code-generated at build time.
- Forest.json contains all the trees as an array of trees.
- Features.json describes the features to be used.
- Codegen file takes the above two files and generates CompletionModel containing Feature struct and corresponding Evaluate function.
   The Evaluate function maps a feature to a real number describing the relevance of this candidate.
- The codegen is part of build system and these files are generated at build time.
- Proposes a way to test the generated runtime using a test model.
  - Replicates the model structure in unittests.
  - unittest tests both the test model (for correct tree traversal) and the real model (for sanity).

This reverts commit 549e55b3d5.
2020-09-19 10:54:04 +02:00
Eric Christopher 549e55b3d5 Temporarily Revert "[clangd] Add Random Forest runtime for code completion."
as a header doesn't appear to have made it into the commit.

This reverts commit 9b6765e784 and followup
2020-09-18 14:47:43 -07:00
Nico Weber 807777913e CompletionModelCodegen: Remove unused import
The unused import is 3.4+, so it also breaks py2.7 compat.
But this is easy to fix :)
2020-09-18 16:24:58 -04:00
Nico Weber 0ea2a57274 clangd: Make ompletionModelCodegen.py tpy2.7 compatible
LLVM still supports Python 2.7, so unbreak bots that still run that.
In a separate commit so that this is easy to revert once we drop
support :)
2020-09-18 15:26:58 -04:00
Utkarsh Saxena 9b6765e784 [clangd] Add Random Forest runtime for code completion.
Summary:
[WIP]
- Proposes a json format for representing Random Forest model.
- Proposes a way to test the generated runtime using a test model.

TODO:
- Add generated source code snippet for easier review.
- Fix unused label warning.
- Figure out required using declarations for CATEGORICAL columns from Features.json.
- Necessary Google3 internal modifications for blaze before landing.
- Add documentation for format of the model.
- Document more.

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D83814
2020-09-18 19:25:56 +02:00
Adam Czachorowski c894bfd1f5 [clangd] Add option for disabling AddUsing tweak on some namespaces.
For style guides forbid "using" declarations for namespaces like "std".
With this new config option, AddUsing can be selectively disabled on
those.

Differential Revision: https://reviews.llvm.org/D87775
2020-09-18 16:46:09 +02:00
Yaxun (Sam) Liu 772bd8a7d9 Revert "[CUDA][HIP] Defer overloading resolution diagnostics for host device functions"
This reverts commit 7f1f89ec8d.

This reverts commit 40df06cdaf.
2020-09-17 13:55:31 -04:00
Yaxun (Sam) Liu 7f1f89ec8d Fix build failure in clangd 2020-09-17 11:51:09 -04:00
Adam Balogh dbd45b2db8 [ASTMatchers] Fix `hasBody` for the descendants of `FunctionDecl`
//AST Matcher// `hasBody` is a polymorphic matcher that behaves
differently for loop statements and function declarations. The main
difference is the for functions declarations it does not only call
`FunctionDecl::getBody()` but first checks whether the declaration in
question is that specific declaration which has the body by calling
`FunctionDecl::doesThisDeclarationHaveABody()`. This is achieved by
specialization of the template `GetBodyMatcher`. Unfortunately template
specializations do not catch the descendants of the class for which the
template is specialized. Therefore it does not work correcly for the
descendants of `FunctionDecl`, such as `CXXMethodDecl`,
`CXXConstructorDecl`, `CXXDestructorDecl` etc. This patch fixes this
issue by using a template metaprogram.

The patch also introduces a new matcher `hasAnyBody` which matches
declarations which have a body present in the AST but not necessarily
belonging to that particular declaration.

Differential Revision: https://reviews.llvm.org/D87527
2020-09-16 13:16:51 +02:00
Adam Balogh 779a2a2edc [clang-tidy] Crash fix for bugprone-misplaced-pointer-arithmetic-in-alloc
Placement new operators on non-object types cause crash in
`bugprone-misplaced-pointer-arithmetic-in-alloc`. This patch fixes this
issue.

Differential Revision: https://reviews.llvm.org/D87683
2020-09-16 13:16:44 +02:00
Adam Czachorowski 7029e5d4ca [clangd] Actually parse Index section of the YAML file.
This fixes a bug in dbf486c0de, which
introduced the Index section of the config, but did not register the
parse method, so it didn't work in a YAML file (but did in a test).

Differential Revision: https://reviews.llvm.org/D87710
2020-09-16 13:11:02 +02:00
Kirill Bobyrev 3e5a4ef51a Fix table formatting after D87686 2020-09-16 12:27:59 +02:00
Kirill Bobyrev a909a84ef2
[clang-tidy] Improve documentation on Clangd integration
The integration is already complete; this patch updates information as well as
suggests using Clang-Tidy via Clangd integration that is vastly available
in most editors through LSP client plugins.

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D87686
2020-09-16 12:10:00 +02:00
Kirill Bobyrev 3a0a2a6347 [clangd] Implement hot index reloading for clangd-index-server
This patch adds a mechanism to load new versions of index into
clangd-index-server using SwapIndex and FileStatus information about last
modification time without downtime.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D87450
2020-09-16 11:12:14 +02:00
Aleksandr Platonov d427df6369 [clangd] Don't use zlib when it's unavailable.
Without this patch `clangd` crashes at try to load compressed string table when `zlib` is not available.
Example:
- Build `clangd` with MinGW (`zlib` found)
- Build index
- Build `clangd` with Visual Studio compiler (`zlib` not found)
- Try to load index

Reviewed By: sammccall, adamcz

Differential Revision: https://reviews.llvm.org/D87673
2020-09-16 11:05:18 +03:00
Zinovy Nis 96c6d012df [clang-tidy] Fix crash in modernize-use-noexcept on uninstantiated throw class
Bug: https://bugs.llvm.org/show_bug.cgi?id=47446

Differential Revision: https://reviews.llvm.org/D87627
2020-09-16 08:13:00 +03:00
Felix Berger 98e07b5596 Restrict UnnecessaryCopyInitialization check to variables initialized from free functions without arguments
This restriction avoids cases where an alias is returned to an argument and
which could lead to to a false positive change.
2020-09-15 08:46:04 -04:00
Sam McCall 687e1d7121 [clangd] makeStringError,make_error<StringError> -> error() 2020-09-14 11:48:31 +02:00
Kadir Cetinkaya 574dd60547
[clangd] Track tweaks that fail the apply stage
Differential Revision: https://reviews.llvm.org/D87501
2020-09-14 11:24:02 +02:00
Sam McCall 30667c967d [clangd] Add error() function for creating formatv-style llvm::Errors. NFC
Summary:
This is considerably terser than the makeStringError and friends, and
avoids verbosity cliffs that discourage adding log information.

It follows the syntax used in log/elog/vlog/dlog that have been successful.

The main caveats are:
 - it's strictly out-of-place in logger.h, though kind of fits thematically and
   in implementation
 - it claims the "error" identifier, which seems a bit too opinionated
   to put higher up in llvm

I've updated some users of StringError mostly at random - there are lots
more mechanical changes but I'd like to get this reviewed before making
them all.

Reviewers: kbobyrev, hokein

Subscribers: mgorny, ilya-biryukov, javed.absar, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D83419
2020-09-14 10:43:42 +02:00
Kadir Cetinkaya bceca7a996
[clangd][NFC] Get rid of an `else after return` 2020-09-11 11:31:16 +02:00
Aaron Ballman 66ac212ea9 Speculatively fix the Sphinx builder. 2020-09-10 11:35:10 -04:00
Nico Weber 29cecbc5d6 Fix clangd build after 33c9dbbd38 2020-09-10 11:05:53 -04:00
Nico Weber 33c9dbbd38 Add an explicit toggle for the static analyzer in clang-tidy
Instead of using CLANG_ENABLE_STATIC_ANALYZER for use of the
static analyzer in both clang and clang-tidy, add a second
toggle CLANG_TIDY_ENABLE_STATIC_ANALYZER.

This allows enabling the static analyzer in clang-tidy while
disabling it in clang.

Differential Revison: https://reviews.llvm.org/D87118
2020-09-10 10:48:17 -04:00
Roman Lebedev ebf496d805
Revert "[clang-tidy] New check readability-prefer-member-initializer"
Either contains unbounded loops, or has *very* high runtime,
100+x of all the current clang-tidy checks.

This reverts commit f5fd7486d6.
2020-09-10 16:32:18 +03:00
serge-sans-paille 875b8537ee [clang-tidy] Fix reST syntax
Authored by Eisuke Kawashima [https://github.com/llvm/llvm-project/pull/245]
2020-09-10 13:56:57 +02:00
Heejin Ahn 71133e8b5b [clang-tidy] Fix linking for FrontendOpenMP
Without this, builds with `-DBUILD_SHARED_LIBS=ON` fail.
2020-09-08 09:22:22 -07:00
Haojian Wu 32ae37b038 [clang-tidy] Fix dynamic build failures after 156b127945 2020-09-08 16:26:48 +02:00
Nico Weber 9933188c90 StructPackAlignCheck: Fix a -Winconsistent-missing-override warning 2020-09-08 10:02:00 -04:00
Frank Derry Wanye 156b127945 Add a new altera check for structure packing and alignment.
The altera struct pack align lint check finds structs that are inefficiently
packed or aligned and recommends packing/aligning of the structs using the
packed and aligned attributes as needed in a warning.
2020-09-08 09:35:14 -04:00
Eduardo Caldas 1a7a2cd747 [Ignore Expressions][NFC] Refactor to better use `IgnoreExpr.h` and nits
This change groups
* Rename: `ignoreParenBaseCasts` -> `IgnoreParenBaseCasts` for uniformity
* Rename: `IgnoreConversionOperator` -> `IgnoreConversionOperatorSingleStep` for uniformity
* Inline `IgnoreNoopCastsSingleStep` into a lambda inside `IgnoreNoopCasts`
* Refactor `IgnoreUnlessSpelledInSource` to make adequate use of `IgnoreExprNodes`

Differential Revision: https://reviews.llvm.org/D86880
2020-09-07 09:32:30 +00:00
Aaron Puchert da6b3aa4c6 Attempt to fix Sphinx build failure, NFC
A code block wasn't properly introduced.
2020-09-05 18:25:27 +02:00
Nathan Ridge ca842c825a [clangd] Handle templates more consistently in type hierarchy
If the tree includes types derived from all specializations of
a template, do not misleadingly label the root node with the
name of a single specialization.

Fixes https://github.com/clangd/clangd/issues/507

Differential Revision: https://reviews.llvm.org/D86861
2020-09-01 19:18:37 -04:00
Adam Balogh 22808d693e [clang-tidy] Buildbot failure fix for commit rGf5fd7486d6c0
Commit `rGf5fd7486d6c0` caused a buildbot failure because exceptions are
disabled by default on one of the buildbots. This patch forcibly enables
exceptions for the affected test.
2020-08-31 16:32:10 +02:00
Adam Balogh 14dd073782 [Clang-Tidy] New check `bugprone-redundant-branch-condition`
Checking the same condition again in a nested `if` usually make no sense,
except if the value of the expression could have been changed between
the two checks. Although compilers may optimize this out, such code is
suspicious: the programmer may have meant to check something else.
Therefore it is worth to find such places in the code and notify the
user about the problem.

This patch implements a basic check for this problem. Currently it
only detects redundant conditions where the condition is a variable of
integral type. It also detects the possible bug if the variable is in an
//or// or //and// logical expression in the inner if and/or the variable
is in an //and// logical expression in the outer if statement. Negated
cases are not handled yet.

Differential Revision: https://reviews.llvm.org/D81272
2020-08-31 16:00:59 +02:00
Adam Balogh f5fd7486d6 [clang-tidy] New check readability-prefer-member-initializer
Finds member initializations in the constructor body which can
be placed to the member initializers of the constructor instead.
This does not only improves the readability of the code but also
affects positively its performance. Class-member assignments
inside a control statement or following the first control
statement are ignored.

Differential Revision: https://reviews.llvm.org/D71199
2020-08-31 15:59:29 +02:00
Nathan James 3776999b49
[clang-query][NFC] Silence a few lint warnings 2020-08-28 01:06:46 +01:00
Kirill Bobyrev 9d11e6789c
[clangd] Use string[] for allCommitCharacters
As per LSP specification, allCommitCharacters should be string[] instead of
string:

https://microsoft.github.io/language-server-protocol/specification#textDocument_completion

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D86604
2020-08-26 17:08:19 +02:00
Haojian Wu 667867e0df [clangd] Enable recovery-ast-type by default.
Differential Revision: https://reviews.llvm.org/D86602
2020-08-26 16:47:04 +02:00
Haojian Wu 0aaa2acc4c [clangd] Compute the inactive code range for semantic highlighting.
Differential Revision: https://reviews.llvm.org/D85635
2020-08-26 10:50:31 +02:00
Adam Czachorowski 4d90ff59ac [clangd] When inserting "using", add "::" in front if that's the style.
We guess the style based on the existing using declarations. If there
are any and they all start with ::, we add it to the newly added one
too.

Differential Revision: https://reviews.llvm.org/D86473
2020-08-25 14:07:49 +02:00
Nathan James df5335a36d
[clang-tidy] readability-simplify-boolean-expr detects negated literals
Adds support for detecting cases like `if (!true) ...`.
Addresses [[ https://bugs.llvm.org/show_bug.cgi?id=47166 | readability-simplify-boolean-expr not detected for negated boolean literals. ]]

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D86176
2020-08-22 13:57:36 +01:00
Adam Czachorowski b488935320 [clangd] Discard diagnostics from another SourceManager.
This can happen when building implicit modules, as demonstrated in test.
The CompilerInstance uses the same StoredDiags, but different
SourceManager. This used to crash clangd when it tried to relocate the
diagnostic to the main file, which, according to SourceManager from the
diagnostic, is a fake <module-includes> file.

Differential Revision: https://reviews.llvm.org/D85753
2020-08-21 13:11:21 +02:00
Richard Smith efeb65d53b Fix up clangd after Clang 038edf6029.
Now that Clang is able to constant-evaluate void-typed expressions,
disable showing hover-card values for them. It's not useful to say that
an expression cast to void has value '<no value>', even if we can
constant-evaluate it to that result!
2020-08-20 16:36:25 -07:00
Joachim Priesner 03ded5497a Fix -allow-enabling-analyzer-alpha-checkers always being passed to run-clang-tidy.py
The action='store_true' option of argparse.add_argument implicitly
generates a default value of False if the argument is not specified.
Thus, the allow_enabling_alpha_checkers argument of
get_tidy_invocation is never None.
2020-08-20 09:15:29 -04:00
Aleksandr Platonov 4457398265 [clangd] Don't crash on `#pragma clang __debug parser_crash`
Currently, clangd crashes when opening a file with `#pragma clang __debug parser_crash` (e.g. clang/test/Modules/Inputs/crash.h).
This patch disables these crashes.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D86279
2020-08-20 15:53:21 +03:00
Adam Czachorowski 707138d677 [clangd] Remove useless stderr logging.
This was accidentally added in 53b9199a5c

Differential Revision: https://reviews.llvm.org/D86284
2020-08-20 14:52:04 +02:00
Adam Czachorowski baeff989b0 [clang] When loading preamble from AST file, re-export modules in Sema.
This addresses a FIXME in ASTReader.

Modules were already re-exported for Preprocessor, but not for Sema.
The result was that, with -fmodules-local-submodule-visibility, all AST
nodes belonging to a module that was loaded in a premable where not
accesible from the main part of the file and a diagnostic recommending
importing those modules would be generated.

Differential Revision: https://reviews.llvm.org/D86069
2020-08-20 14:19:52 +02:00
Adam Czachorowski 53b9199a5c [clangd] Fix crash-bug in preamble indexing when using modules.
When preamble contains #undef, indexing code finds the matching #define
and uses that during indexing. However, it would only look for local
definitions. If the macro was defined in a module, MacroInfo
would be nullptr and clangd would crash.

This change makes clangd ignore any #undef without a matching #define
inside the same TU.

The indexing of macros happens for preamble only, so then #undef must be
in the preamble, which is why we need two .h files in a test.

Note that clangd is currently not ready for module support, but this
brings us one step closer.

This was previously attempted in
4061d9e42c, but had to be reverted due to
broken test. This version fixes that test-only bug by setting a custom module
cache path to avoid re-use of modules across test invocations.

Differential Revision: https://reviews.llvm.org/D85923
2020-08-20 14:19:52 +02:00
Simon Pilgrim 1014a93a4e Fix unused variable warnings. NFCI. 2020-08-19 14:34:32 +01:00
Nathan James 8c9ffe34d9 [NFC][clang-tidy] Put abseil headers in alphabetical order 2020-08-18 15:52:47 +01:00
Nathan Ridge e33ec9d904 [clangd] Target member of dependent base made visible via a using-decl
Fixes https://github.com/clangd/clangd/issues/307

Differential Revision: https://reviews.llvm.org/D86047
2020-08-18 03:03:49 -04:00
Nathan Ridge 00d7b7d014 [clang] Fix visitation of ConceptSpecializationExpr in constrained-parameter
Summary: RecursiveASTVisitor needs to traverse TypeConstraint::ImmediatelyDeclaredConstraint

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D84136
2020-08-18 00:32:34 -04:00
Nathan Ridge 15673d748a [clangd] Index refs to main-file symbols as well
Summary: This will be needed to support call hierarchy

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D83536
2020-08-18 00:30:07 -04:00
Kadir Cetinkaya 53c593c2c8
[clang] Make signature help work with dependent args
Fixes https://github.com/clangd/clangd/issues/490

Differential Revision: https://reviews.llvm.org/D85826
2020-08-17 10:06:36 +02:00
Bernhard Manfred Gruber 345053390a Add support for C++20 concepts and decltype to modernize-use-trailing-return-type. 2020-08-15 10:40:22 -04:00
zacharyselk caac40fa5a [clang-tools-extra] Added missing comma
The new diagnostic tool (D85545) caught a missing comma, adding one to fix the warning.

Differential Revision: https://reviews.llvm.org/D85978
2020-08-14 12:27:30 -06:00
Vy Nguyen 114c9fa0e4 Add "status" to the list of absl libraries.
The Abseil-NoInternalDependenciesCheck currently mistakenly triggers on any usage of internal helpers even if it is within absl/status.

Differential Revision: https://reviews.llvm.org/D85843
2020-08-13 16:08:14 -04:00
Kadir Cetinkaya 0464acd019
[clangd] Move clang-tidy check modifications into ClangdServer
Summary:
This enables sharing the logic between standalone clangd and embedders
of it. The new approach should be same performance-wise, as it is only called
once per addDocument call.

This patch also introduces a blacklisting code path for disabling crashy or
high-noise tests, until we figure out a way to make them work with clangd-setup.

The biggest difference is the way we make use of preambles, hence those checks
can't see directives coming from the preamble section of the file. The second
thing is the fact that code might-not be compiling while clangd is trying to
build an AST, hence some checks might choke on those incomplete ASTs.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, aaron.ballman, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D83224
2020-08-13 18:32:59 +02:00
Kadir Cetinkaya 66a2e3a525
[clangd] Send EOF before resetting diagnostics consumer
Summary:
Some clang-tidy checkers, e.g. llvm-include-order can emit diagnostics
at this callback (as mentioned in the comments).

Clangd was resetting diag consumer to IgnoreDiags before sending EOF, hence we
were unable to emit diagnostics for such checkers.

This patch changes the order of that reset and preprocosser event to make sure
we emit that diag.

Fixes https://github.com/clangd/clangd/issues/314.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D83178
2020-08-13 18:32:59 +02:00
Sam McCall b36e22d644 [clangd] Extract BackgroundIndex::Options struct. NFC
I've dropped the background context parameter, since we in practice just pass the
current context there, and we now have a different way to specify context too.
While here, clean up a couple of comments.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D83157
2020-08-13 18:12:54 +02:00
Sam McCall 98cf77e337 [clangd] Clean up old test fixture/names a little. NFC 2020-08-13 17:43:11 +02:00
Adam Czachorowski 73f0772c0b [clangd] Revert "[clangd] Fix crash-bug in preamble indexing when using modules."
This reverts commit 4061d9e42c.
Tests are failing in some configuration, likely due to not cleaning up
module cache path before running the test.

Differential Revision: https://reviews.llvm.org/D85907
2020-08-13 17:09:54 +02:00
Sam McCall 41d0edd54e [clangd] Express dumpAST in tests as a customAction() 2020-08-13 14:27:32 +02:00
Sam McCall 32626bcc0b [clangd] Add ClangdServer::customAction() extension point
This lets basic AST-consuming actions be defined outside clangdserver.
(it essentially exposes TUScheduler::runWithAST).

Two use cases for now:
 - replace ClangdServer::dumpAST, which doesn't really belong in the public
   interface (a followup patch will do this)
 - allow embedders to add/experiment with extra features
   (e.g. I know some who want to try crazy AST+ML code completion...)

Maybe in the future we should use this sort of mechanism to make ClangdServer
less of a monolith, but that's not in scope for now.
This would probably require a richer and more carefully-thought-out API.

Differential Revision: https://reviews.llvm.org/D85883
2020-08-13 12:26:32 +02:00
Erik Pilkington fc915d13b8 [clang-tidy] use stable_sort instead of sort to fix EXPENSIVE_CHECKS tests
http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA-expensive/17317/console
2020-08-12 12:12:10 -04:00
Bogdan Serea 35bee3503f [clang-tidy] prevent generated checks from triggering assertions on anonymous functions
Skeleton checks generated by clang-tidy add_check.py cause assertions to fail when run over anonymous functions(lambda functions). This patch introduces an additional check to verify that the target function is not anonymous before calling getName().
The code snippet from the [[ https://clang.llvm.org/extra/clang-tidy/Contributing.html | clang-tidy tutorial  ]]is also updated.

Reviewed By: alexfh, DavidTruby

Differential Revision: https://reviews.llvm.org/D85218
2020-08-12 12:43:40 +01:00
Yitzhak Mandelbaum d8c1f43dcc [libTooling] Move RewriteRule include edits to ASTEdit granularity.
Currently, changes to includes are applied to an entire rule. However,
include changes may be specific to particular edits within a rule (for example,
they may apply to one file but not another). Also, include changes may need to
carry metadata, just like other changes. So, we make include changes first-class
edits.

Reviewed By: tdl-g

Differential Revision: https://reviews.llvm.org/D85734
2020-08-11 16:47:14 +00:00
David Goldman cb29c33984 [clangd][ObjC] Improve xrefs for protocols and classes
Summary:
Previously clangd would jump to forward declarations for protocols
and classes instead of their definition/implementation.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D83501
2020-08-11 12:36:31 -04:00
Kadir Cetinkaya 24a816c7d3
[clangd] Disable ExtractFunction for C
This tweak uses constructs like auto and refs, which are not available
in C.

Differential Revision: https://reviews.llvm.org/D85727
2020-08-11 16:00:39 +02:00
Kadir Cetinkaya b626f45329
[clangd] Unify macro matching in code completion for AST and Index based macros
fixes https://github.com/clangd/clangd/issues/489

Differential Revision: https://reviews.llvm.org/D85721
2020-08-11 16:00:39 +02:00
Kirill Bobyrev bd1013a482
[clangd] Enforce trailing slash for remote index's project root
Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85711
2020-08-11 13:24:43 +02:00
Simon Pilgrim 73a6a36469 [clangd] RIFF.cpp - Use logical && instead of bitwise & for padding check
Fixes PR47070
2020-08-11 11:38:43 +01:00
Kirill Bobyrev c6d2078a35 [clangd] Improve diagnostics in dexp interface
When running dexp in remote mode without --project-root it shuts down
with an assertion. This is not the desired behaviour: instruct user on
how to run it properly when the configuration is incorrect.
2020-08-11 09:50:33 +02:00
Nathan Ridge 70d583ad12 [clangd] Have template template arguments target their referenced template decl
Fixes https://github.com/clangd/clangd/issues/473

Differential Revision: https://reviews.llvm.org/D85503
2020-08-10 13:27:23 -04:00
Adam Czachorowski 4061d9e42c [clangd] Fix crash-bug in preamble indexing when using modules.
Summary:
When preamble contains #undef, indexing code finds the matching #define
and uses that during indexing. However, it would only look for local
definitions. If the macro was defined in a module, MacroInfo
would be nullptr and clangd would crash.

This change makes clangd ignore any #undef without a matching #define
inside the same TU.

The indexing of macros happens for preamble only, so then #undef must be
in the preamble, which is why we need two .h files in a test.

Note that clangd is currently not ready for module support, but this
brings us one step closer.

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D80525
2020-08-10 18:42:57 +02:00
Adam Czachorowski e2d61ae573 Correctly set CompilingPCH in PrecompilePreambleAction.
This fixes a crash bug in clangd when used with modules. ASTWriter would
end up writing references to submodules into the PCH file, but upon
reading the submodules would not exists and
HeaderFileInfoTrait::ReadData would crash.

Differential Revision: https://reviews.llvm.org/D85532
2020-08-10 17:49:23 +02:00
Aleksandr Platonov dcb8d3b722 [clang-tidy] Fix a crash in bugprone-not-null-terminated-result check when `__STDC_WANT_LIB_EXT1__` is not a literal.
If `__STDC_WANT_LIB_EXT1__` is not a literal (e.g. `#define __STDC_WANT_LIB_EXT1__ ((unsigned)1)`) bugprone-not-null-terminated-result check crashes.
Stack dump:
```
 #0 0x0000000002185e6a llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/llvm-project/build/bin/clang-tidy+0x2185e6a)
 #1 0x0000000002183e8c llvm::sys::RunSignalHandlers() (/llvm-project/build/bin/clang-tidy+0x2183e8c)
 #2 0x0000000002183ff3 SignalHandler(int) (/llvm-project/build/bin/clang-tidy+0x2183ff3)
 #3 0x00007f08d91b1390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
 #4 0x00000000021338bb llvm::StringRef::getAsInteger(unsigned int, llvm::APInt&) const (/llvm-project/build/bin/clang-tidy+0x21338bb)
 #5 0x000000000052051c clang::tidy::bugprone::NotNullTerminatedResultCheck::check(clang::ast_matchers::MatchFinder::MatchResult const&) (/llvm-project/build/bin/clang-tidy+0x52051c)
```

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85525
2020-08-10 15:12:03 +03:00
Haojian Wu 3d2cf72943 [clangd] Fix the background index is not disabled when using remote-index.
Differential Revision: https://reviews.llvm.org/D85637
2020-08-10 14:02:22 +02:00
Aleksandr Platonov 5965fbf81b [clang-tidy] Fix a crash in bugprone-not-null-terminated-result check when `__STDC_WANT_LIB_EXT1__` was undefined after definition.
PP->getMacroInfo() returns nullptr for undefined macro, so we need to check this return value before dereference.
Stack dump:
```
 #0 0x0000000002185e6a llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/llvm-project/build/bin/clang-tidy+0x2185e6a)
 #1 0x0000000002183e8c llvm::sys::RunSignalHandlers() (/llvm-project/build/bin/clang-tidy+0x2183e8c)
 #2 0x0000000002183ff3 SignalHandler(int) (/llvm-project/build/bin/clang-tidy+0x2183ff3)
 #3 0x00007f37df9b1390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
 #4 0x000000000052054e clang::tidy::bugprone::NotNullTerminatedResultCheck::check(clang::ast_matchers::MatchFinder::MatchResult const&) (/llvm-project/build/bin/clang-tidy+0x52054e)
```

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85523
2020-08-10 10:24:38 +03:00
Kirill Bobyrev 836f937a1f
[clangd] Add more error details on the remote index server side
Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D85502
2020-08-09 22:12:56 +02:00
Haojian Wu 90d1c66c7c [clangd] Fix a typo, NFC. 2020-08-07 15:02:06 +02:00
Haojian Wu a70161808b [clangd] Include the underlying decls in go-to-definition.
Fixes https://github.com/clangd/clangd/issues/277

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D74054
2020-08-07 11:39:49 +02:00
Nathan James 01bc708126 [NFC] Replace hasName in loop for hasAnyName 2020-08-07 10:22:45 +01:00
Nathan Ridge 57f9518bf0 [clangd] Highlight structured bindings at local scope as LocalVariable
Differential Revision: https://reviews.llvm.org/D85500
2020-08-07 03:23:10 -04:00
Richard Smith b2847671b8 Reinstate check that we don't crash. 2020-08-06 19:07:50 -07:00
Richard Smith 2f1fffab73 Disable clang-tidy test that started failing after clang commit ed5a18f.
This checker appears to be intentionally not diagnosing cases where an
operator appearing in a duplicated expression might have side-effects;
Clang is now modeling fold-expressions as having an unresolved operator
name within them, so they now trip up this check.
2020-08-06 19:06:06 -07:00
Nathan Ridge f4ba7a100a [clangd] Semantic highlighting for dependent template name in template argument
Fixes https://github.com/clangd/clangd/issues/484

Differential Revision: https://reviews.llvm.org/D85272
2020-08-06 21:23:49 -04:00
Aleksandr Platonov 9f24148b21 [clangd] Fix crash in bugprone-bad-signal-to-kill-thread clang-tidy check.
Inside clangd, clang-tidy checks don't see preprocessor events in the preamble.
This leads to `Token::PtrData == nullptr` for tokens that the macro is defined to.
E.g. `#define SIGTERM 15`:
- Token::Kind == tok::numeric_constant (Token::isLiteral() == true)
- Token::UintData == 2
- Token::PtrData == nullptr

As the result of this, bugprone-bad-signal-to-kill-thread check crashes at null-dereference inside clangd.

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85417
2020-08-06 21:45:21 +03:00
Aleksandr Platonov 216ad2da74 [clang-tidy] Fix bugprone-bad-signal-to-kill-thread crash when `SIGTERM` is not a literal.
If `SIGTERM` is not a literal (e.g. `#define SIGTERM ((unsigned)15)`) bugprone-bad-signal-to-kill-thread check crashes.
Stack dump:
```
 #0 0x000000000217d15a llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/llvm-project/build/bin/clang-tidy+0x217d15a)
 #1 0x000000000217b17c llvm::sys::RunSignalHandlers() (/llvm-project/build/bin/clang-tidy+0x217b17c)
 #2 0x000000000217b2e3 SignalHandler(int) (/llvm-project/build/bin/clang-tidy+0x217b2e3)
 #3 0x00007f6a7efb1390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
 #4 0x000000000212ac9b llvm::StringRef::getAsInteger(unsigned int, llvm::APInt&) const (/llvm-project/build/bin/clang-tidy+0x212ac9b)
 #5 0x0000000000593501 clang::tidy::bugprone::BadSignalToKillThreadCheck::check(clang::ast_matchers::MatchFinder::MatchResult const&) (/llvm-project/build/bin/clang-tidy+0x593501)
```

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85398
2020-08-06 10:32:03 +03:00
Aleksandr Platonov 8671166833 [clang-tidy] Fix bugprone-bad-signal-to-kill-thread crash when `SIGTERM` was undefined after definition.
`PP->getMacroInfo()` returns nullptr for undefined macro, which leads to null-dereference at `MI->tockens().back()`.
Stack dump:
```
 #0 0x000000000217d15a llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/llvm-project/build/bin/clang-tidy+0x217d15a)
 #1 0x000000000217b17c llvm::sys::RunSignalHandlers() (/llvm-project/build/bin/clang-tidy+0x217b17c)
 #2 0x000000000217b2e3 SignalHandler(int) (/llvm-project/build/bin/clang-tidy+0x217b2e3)
 #3 0x00007f39be5b1390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
 #4 0x0000000000593532 clang::tidy::bugprone::BadSignalToKillThreadCheck::check(clang::ast_matchers::MatchFinder::MatchResult const&) (/llvm-project/build/bin/clang-tidy+0x593532)
```

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85401
2020-08-06 10:28:20 +03:00
Kadir Cetinkaya 618db6803d
[clangd][NFC] Delete dead code in ExtractFunction code action 2020-08-05 21:14:39 +02:00
Kadir Cetinkaya d3ac301886
[clangd] Disable define out-of-line code action on templates
Differential Revision: https://reviews.llvm.org/D85310
2020-08-05 20:57:28 +02:00
Haojian Wu 9a7b8b22a7 [clangd] Hide "swap if branch" tweak
This tweak is more like a demo, and doesn't provide much value in
practice.

Differential Revision: https://reviews.llvm.org/D85318
2020-08-05 20:03:21 +02:00
Kadir Cetinkaya 011732852c
[clangd] Fix a crash in DefineInline
Differential Revision: https://reviews.llvm.org/D85291
2020-08-05 17:38:17 +02:00
Bruno Ricci 19701458d4
[clang][nearly-NFC] Remove some superfluous uses of NamedDecl::getNameAsString
`OS << ND->getDeclName();` is equivalent to `OS << ND->getNameAsString();`
without the extra temporary string.

This is not quite a NFC since two uses of `getNameAsString` in a
diagnostic are replaced, which results in the named entity being
quoted with additional "'"s (ie: 'var' instead of var).
2020-08-05 13:54:37 +01:00
Alex Cameron a44161692a Support member expressions in bugprone-bool-pointer-implicit-conversion.
This addresses PR45189.
2020-08-05 07:14:28 -04:00
Nathan James 7c4782ce91
[clang-tidy] Fix regression in RenamerClangTidy
See bug https://bugs.llvm.org/show_bug.cgi\?id\=46976
2020-08-04 09:27:01 +01:00
Nathan Ridge 4ede396849 [clang] Include trailing-requires-clause in FunctionDecl's source range
Fixes https://github.com/clangd/clangd/issues/476

Differential Revision: https://reviews.llvm.org/D85108
2020-08-04 02:52:01 -04:00
Nathan James 3b44b6c900
[clang-tidy][NFC] Use correct size call for reserve 2020-08-04 00:31:19 +01:00
Haojian Wu 5191f70ab1 [clangd] Support new/deleta operator in TargetFinder.
Differential Revision: https://reviews.llvm.org/D85028
2020-08-03 14:10:21 +02:00
Ilya Golovenko d76057c1fe
Add document outline symbols from unnamed contexts, e.g. extern "C".
It is necessary to traverse children of unnamed declaration contexts
to get symbols which are currently missing in document outline, e.g.:

extern "C" {
void foo();
}

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D84839
2020-08-03 11:34:56 +02:00
Nathan James 9f21947a33
[clang-tidy][NFC] Small refactor 2020-08-01 11:04:29 +01:00
Nathan James 4888c9ce97
[clang-tidy] readability-identifier-naming checks configs for included files
When checking for the style of a decl that isn't in the main file, the check will now search for the configuration that the included files uses to gather the style for its decls.

This can be useful to silence warnings in header files that follow a different naming convention without using header-filter to silence all warnings(even from other checks) in the header file.

Reviewed By: aaron.ballman, gribozavr2

Differential Revision: https://reviews.llvm.org/D84814
2020-08-01 10:35:32 +01:00
Nathan James 1fd2049e38
[clang-tidy][NFC] Added convienence methods for getting optional options
These methods abstract away Error handling when trying to read options that can't be parsed by logging the error automatically and returning None.

Reviewed By: gribozavr2

Differential Revision: https://reviews.llvm.org/D84812
2020-08-01 01:45:34 +01:00
Haojian Wu 638f0cf565 [clangd] Be more explicit on testing the optional DefLoc in LocatedSymbol.
And also fix a bug where we may return a meaningless location.

Differential Revision: https://reviews.llvm.org/D84919
2020-07-31 14:34:56 +02:00
Bjorn Pettersson 0d25d3b7e3 [clang-tidy] Fix build problem after commit 45a720a864
When building with LLVM8.0 on RHEL7.8 I got failures like this
after commit 45a720a864320bbbe:

/app/llvm/8.0/bin/../lib/gcc/x86_64-unknown-linux-gnu/
5.4.0/../../../../include/c++/5.4.0/ext/new_allocator.h:120:23:
error: no matching constructor for initialization of
'std::pair<std::__cxx11::basic_string<char>,
std::__cxx11::basic_string<char> >'
{ ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }

...

../../clang-tools-extra/clang-tidy/ClangTidyOptions.cpp:73:15:
note: in instantiation of function template specialization
'std::vector<std::pair<std::__cxx11::basic_string<char>,
std::__cxx11::basic_string<char> >,
std::allocator<std::pair<std::__cxx11::basic_string<char>,
std::__cxx11::basic_string<char> > > >::emplace_back<llvm::StringRef,
const std::__cxx11::basic_string<char> &>' requested here
Options.emplace_back(KeyValue.getKey(), KeyValue.getValue().Value);

This is an attempt to avoid such build problems.
2020-07-31 14:29:03 +02:00
Kirill Bobyrev fb5588b0ad
[clangd] Propagate remote index errors via Expected
This is a refactoring: errors should be logged only on the highest level.
Switch from Optional to Expected in the serialization code.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D84939
2020-07-31 11:48:32 +02:00
Nathan James c23ae3f18e
[clang-tidy][NFC] Use StringMap for ClangTidyCheckFactories::FacoryMap
Reviewed By: gribozavr2

Differential Revision: https://reviews.llvm.org/D84926
2020-07-30 22:57:33 +01:00
Artem Dergachev 6a043ecc0c [clang-tidy] Fix ODR violation in unittests.
Both tests define clang::tidy::test::TestCheck::registerMatchers().
This is UB and causes linker to sometimes choose the wrong overload.

Put classes into anonymous namespaces to avoid the problem.

Differential Revision: https://reviews.llvm.org/D84902
2020-07-30 08:52:47 -07:00
Kirill Bobyrev c4b7bfdff6
[clangd] NFC: Spell out types in index callback arguments 2020-07-30 17:12:29 +02:00
Kirill Bobyrev a262f0fea4
[clangd] Implement Relations request for remote index
This is the last missing bit in the core remote index implementation. The only
remaining bits are some API refactorings (replacing Optional with Expected and
being better at reporting errors).

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D84894
2020-07-30 12:57:33 +02:00
Aleksandr Platonov 05b1734661 [clangd] findNearbyIdentifier(): fix the word search in the token stream.
Without this patch the word occurrence search always returns the first token of the file.
Despite of that, `findNeardyIdentifier()` returns the correct result (but inefficently) until there are several matched tokens with the same value `floor(log2(<token line> - <word line>))` (e.g. several matched tokens on the same line).

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D84912
2020-07-30 12:45:58 +03:00
Nathan James 45a720a864
[clang-tidy] Use StringMap for ClangTidyOptions::OptionsMap
Ordering of options isn't important so an `llvm::StringMap` is a much better container for this purpose.

Reviewed By: gribozavr2

Differential Revision: https://reviews.llvm.org/D84868
2020-07-30 10:31:13 +01:00
Haojian Wu cd4e8d7f6f [clangd] Fix an assertion failure in TargetFinder's heuristic resolution of dependent type.
The assertion is not true anymore after D82739, this patch just removes
it, and rename related functions.

And also fixes a missing cases.

Differential Revision: https://reviews.llvm.org/D84837
2020-07-30 08:54:22 +02:00
Richard Smith 6ce97eee35 Fix invalid attempted explicit instantiation, which Clang now rejects. 2020-07-29 13:07:34 -07:00
Nathan James bbc2ddecbd
[clang-tidy] Handled insertion only fixits when determining conflicts.
Handle insertion fix-its when removing incompatible errors by introducting a new EventType `ET_Insert`
This has lower prioirty than End events, but higher than begin.
Idea being If an insert is at the same place as a begin event, the insert should be processed first to reduce unnecessary conflicts.
Likewise if its at the same place as an end event, process the end event first for the same reason.

This also fixes https://bugs.llvm.org/show_bug.cgi?id=46511.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D82898
2020-07-29 16:35:44 +01:00
Nathan James 62beb7c6f4
[clang-tidy] Fix module options being registered with different priorities
Not a bug that is ever likely to materialise, but still worth fixing

Reviewed By: DmitryPolukhin

Differential Revision: https://reviews.llvm.org/D84850
2020-07-29 16:19:07 +01:00
Nathan James b99630e432
[clang-tidy] Fix RedundantStringCStrCheck with r values
The previous fix for this, https://reviews.llvm.org/D76761, Passed test cases but failed in the real world as std::string has a non trivial destructor so creates a CXXBindTemporaryExpr.

This handles that shortfall and updates the test case std::basic_string implementation to use a non trivial destructor to reflect real world behaviour.

Reviewed By: gribozavr2

Differential Revision: https://reviews.llvm.org/D84831
2020-07-29 15:35:31 +01:00
Kirill Bobyrev 1603470e59
[clangd] Fix clangd-indexeer builds after D84697
Some buildbots require explicit clangdSupport dependency:

http://lab.llvm.org:8011/builders/llvm-avr-linux/builds/3996/steps/build%20stage%201/logs/stdio
2020-07-29 10:27:11 +02:00
Anh Tuyen Tran 8dbe9b2498 [Clang-tools-extra] Mark override a function which overrides a virtual one
Function void run() on line 286 overrides a virtual function on line 92 of
clang-tools-extra/clangd/index/dex/dexp/Dexp.cpp.  Not marking it override will
cause a build failure when we use -Werror (every warning is treated as an error).

Reviewed By: kbobyrev (Kirill Bobyrev)

Differential Revision: https://reviews.llvm.org/D84794
2020-07-29 05:30:33 +00:00
Kirill Bobyrev fb22678cd6 [clangd] Use elog instead of llvm::errs, log instead of llvm::outs
Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D84697
2020-07-29 01:48:24 +02:00
Nathan James 7bae3188e0 [clang-tidy][NFC] Make OptionsView methods as const where missing 2020-07-28 14:52:43 +01:00
Artem Dergachev 8c9241a051 [clang-tidy] Suppress one unittest on macOS.
Possibly a linker bug but I'm in a hurry to fix a buildbot.

Differential Revision: https://reviews.llvm.org/D84453
2020-07-27 22:38:53 -07:00
Kirill Bobyrev 731043c0c4
[clangd] Add more logs and attach tracers to remote index server routines
Reviewers: kadircet

Reviewed By: kadircet

Subscribers: sammccall, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D84499
2020-07-27 20:45:18 +02:00
Logan Smith a52aea0ba6 Use INTERFACE_COMPILE_OPTIONS to disable -Wsuggest-override for any target that links to gtest
This cleans up several CMakeLists.txt's where -Wno-suggest-override was manually specified. These test targets now inherit this flag from the gtest target.

Some unittests CMakeLists.txt's, in particular Flang and LLDB, are not touched by this patch. Flang manually adds the gtest sources itself in some configurations, rather than linking to LLVM's gtest target, so this fix would be insufficient to cover those cases. Similarly, LLDB has subdirectories that manually add the gtest headers to their include path without linking to the gtest target, so those subdirectories still need -Wno-suggest-override to be manually specified to compile without warnings.

Differential Revision: https://reviews.llvm.org/D84554
2020-07-27 08:37:01 -07:00
Hans Wennborg 08e9556d5d llvm_canonicalize_cmake_booleans(CLANGD_ENABLE_REMOTE)
Otherwise it got defined as e.g. OFF in Features.inc.
2020-07-27 14:42:04 +02:00
Aleksandr Platonov 90684d1545 [clangd] Collect references for externally visible main-file symbols
Summary:
Without this patch clangd does not collect references for main-file symbols if there is no public declaration in preamble.
Example:
`test1.c`
```
void f1() {}
```

`test2.c`
```
extern void f1();
void f2() {
  f^1();
}
```
`Find all references` does not show definition of f1() in the result, but GTD works OK.

Reviewers: sammccall, kadircet

Reviewed By: kadircet

Subscribers: ilya-golovenko, ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D84513
2020-07-27 15:35:53 +03:00
Kirill Bobyrev f49a7ad8c0
[clangd] Add marshalling code for all request types
Summary:
Only FuzzyFindRequest is implemented via Marshaller even though other requests
also follow a similar pattern. Unify them under the marshalling umbrella and
make the server requests even more uniform to complement D84499.

Reviewers: kadircet

Reviewed By: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits, sammccall

Tags: #clang

Differential Revision: https://reviews.llvm.org/D84525
2020-07-27 14:16:03 +02:00
Hans Wennborg 529441e88e Fix another #ifdef CLANGD_ENABLE_REMOTE 2020-07-27 14:11:29 +02:00
Hans Wennborg 40d11a8780 ClangdMain.cpp: this #ifdef should be an #if
CLANGD_ENABLE_REMOTE is always defined; to 0 or 1.
2020-07-27 14:05:02 +02:00
Nathan James 13c9bbc28e
[clang-tidy] Refactor IncludeInserter
Simplified how `IncludeInserter` is used in Checks by abstracting away the SourceManager and PPCallbacks inside the method `registerPreprocessor`.
Changed checks that use `IncludeInserter` to no longer use a `std::unique_ptr`, instead the IncludeInserter is just a member of the class thats initialized with an `IncludeStyle`.
Saving an unnecessary allocation.

This results in the removal of the field `IncludeSorter::IncludeStyle` from the checks, as its wrapped in the `IncludeInserter`.
No longer need to create an instance of the `IncludeInserter` in the registerPPCallbacks, now that method only needs to contain:
```
Inserter.registerPreprocessor(PP);
```
Also added a helper method to `IncludeInserter` called `createMainFileInclusionInsertion`, purely sugar but does better express intentions.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D83680
2020-07-27 12:48:55 +01:00
Hans Wennborg 47a0254229 Speculative build fix for clangd/Features.inc.in 2020-07-27 13:39:54 +02:00
Kirill Bobyrev 37ac559fcc [clangd] Add option to use remote index as static index
Reviewers: hokein

Reviewed By: hokein

Subscribers: usaxena95, mgorny, ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D83817
2020-07-27 11:24:15 +02:00
Kirill Bobyrev 974ffee9cc [clangd] Switch from EXPECT_TRUE to ASSERT_TRUE in remote marshalling tests
Summary:
When dereferencing Optional's it makes sense to use ASSERT_TRUE for better
test failures readability. Switch from EXPECT_TRUE to ASSERT_TRUE where
it is appropriate.

Reviewers: kadircet

Reviewed By: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D84535

Signed-off-by: Kirill Bobyrev <kbobyrev@google.com>
2020-07-27 10:44:23 +02:00
Hannes Käufler 3bbf3e026d Replace comment by private method; NFC. 2020-07-26 13:59:45 -04:00
Logan Smith 77e0e9e17d Reapply "Try enabling -Wsuggest-override again, using add_compile_options instead of add_compile_definitions for disabling it in unittests/ directories."
add_compile_options is more sensitive to its location in the file than add_definitions--it only takes effect for sources that are added after it. This updated patch ensures that the add_compile_options is done before adding any source files that depend on it.

Using add_definitions caused the flag to be passed to rc.exe on Windows and thus broke Windows builds.
2020-07-22 17:50:19 -07:00