Commit Graph

6865 Commits

Author SHA1 Message Date
Alexander Kornienko dfd2374ab6 [clang-tidy] Remove unnecessary #ifdef
The code was likely used to verify other changes in c3b9d85bd4.
2021-01-28 15:00:07 +01:00
Sam McCall c3df9d58c7 [clangd] Parse Diagnostics block, and nest ClangTidy block under it.
(ClangTidy configuration block hasn't been in any release, so we should be OK
to move it around like this)

Differential Revision: https://reviews.llvm.org/D95362
2021-01-28 01:36:23 +01:00
Sam McCall 29472bb769 [clangd] Log warning when using legacy (theia) semantic highlighting.
The legacy protocol will be removed on trunk after the 12 branch cut,
and gone in clangd 13.

Differential Revision: https://reviews.llvm.org/D95031
2021-01-28 01:29:28 +01:00
Kadir Cetinkaya af20232b8e
[clangd] Treat "null" optional fields as missing
Clangd currently throws away any protocol messages whenever an optional
field has an unexpected type. This patch changes the behaviour to treat
`null` fields as missing.

This enables clangd to be more tolerant against small violations to the
LSP spec.

Fixes https://github.com/clangd/vscode-clangd/issues/134

Differential Revision: https://reviews.llvm.org/D95229
2021-01-27 15:51:33 +01:00
Sam McCall 12de8e1399 [clangd] Work around GCC bug 66735 2021-01-27 15:32:05 +01:00
Tom Stellard 5369517d20 Bump the trunk major version to 13
and clear the release notes.
2021-01-26 19:37:55 -08:00
Nathan James 7730599c41
[clangd] FindTarget resolves base specifier
FindTarget on the virtual keyword or access specifier of a base specifier will now resolve to type of the base specifier.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D95338
2021-01-26 18:59:29 +00:00
Nathan James d92413a45e
[clangd] Selection handles CXXBaseSpecifier
Selection now includes the virtual and access modifier as part of their range for cxx base specifiers.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D95231
2021-01-26 18:58:53 +00:00
Kadir Cetinkaya 9190f17a7c
[clangd] Add std::size_t to StdSymbol mapping
This is a common symbol that's missing from our mapping because
cppreference yields multiple headers.

Add it manually by picking cstddef to prevent insertion of some stdlib-internal
headers instead.

Fixes https://github.com/clangd/clangd/issues/666.

Differential Revision: https://reviews.llvm.org/D95423
2021-01-26 17:53:07 +01:00
Simon Pilgrim 110837fbf6 Fix signed/unsigned comparison warning. NFCI. 2021-01-26 15:04:49 +00:00
Haojian Wu 68dbd1aefe [clangd] Add include-fixer fixit for no_member_template diagnostic.
Differential Revision: https://reviews.llvm.org/D95365
2021-01-26 10:11:06 +01:00
Kadir Cetinkaya 64cdba65bb
[clangd] Fix filename completion at the end of file
Fixes https://github.com/clangd/clangd/issues/433

Differential Revision: https://reviews.llvm.org/D95419
2021-01-26 09:45:21 +01:00
Duncan P. N. Exon Smith f4d02fbe41 Frontend: Take VFS and MainFileBuffer by reference in PrecompiledPreamble::CanReuse, NFC
Clarify that `PrecompiledPreamble::CanReuse` requires non-null arguments
for `VFS` and `MainFileBuffer`, taking them by reference instead of by
pointer.

Differential Revision: https://reviews.llvm.org/D91297
2021-01-25 17:50:56 -08:00
Sam McCall 118c33ef47 [clangd] Allow configuration database to be specified in config.
This allows for more flexibility than -compile-commands-dir or ancestor
discovery.

See https://github.com/clangd/clangd/issues/116

Differential Revision: https://reviews.llvm.org/D95057
2021-01-25 23:15:48 +01:00
Quentin Chateau 3680cb99a7 [clangd] ignore parallelism level for quick tasks
This allows quick tasks without dependencies that
need to run fast to run ASAP. This is mostly useful
for code formatting.

----------------------------

This fixes something that's been annoying me:
- Open your IDE workspace and its 20 open files
- Clangd spends 5 minutes parsing it all
- In the meantime you start to work
- Save a file, trigger format-on-save, which hangs because clangd is busy
- You're stuck waiting until clangd is done parsing your files before the formatting and save takes place

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D94875
2021-01-25 23:03:43 +01:00
Nathan James 71af5a19cb Reland"[clangd][NFC] Simplify handing on methods with no params"
This reverts commit 9d9ceb3745.

First time round caused some build bot failures due to older compilers not patched with the Defect Report about full specialization being allowed at class scope.
2021-01-25 20:19:57 +00:00
Keith Smiley 9d9ceb3745 Revert "[clangd][NFC] Simplify handing on methods with no params"
This broke the build http://lab.llvm.org:8011/#/builders/7/builds/1405

This reverts commit f05b492aae.

Differential Revision: https://reviews.llvm.org/D95385
2021-01-25 11:56:18 -08:00
Nathan James f05b492aae [clangd][NFC] Simplify handing on methods with no params
Add bind methods handling the case when a method has an empty params interface and when it has no parameters.

Remove ShutdownParams and ExitParams from Protocol, In LSP they aren't defined, instead the methods are defined to have void as the params. This signature now better reflects that.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D95270
2021-01-25 19:08:10 +00:00
Sam McCall 7e506b30a1 [clangd] Allow diagnostics to be suppressed with configuration
This has been specifically requested:
  https://github.com/clangd/vscode-clangd/issues/114
and various issues can be addressed with this as a workaround, e.g.:
  https://github.com/clangd/clangd/issues/662

Differential Revision: https://reviews.llvm.org/D95349
2021-01-25 15:59:07 +01:00
Adam Czachorowski 00054382b9 [clangd] Fix a crash when indexing invalid ObjC method declaration
This fix will make us not crash, but ideally we would handle this case
better.

Differential Revision: https://reviews.llvm.org/D94919
2021-01-25 15:43:11 +01:00
Tom Ritter d6d36baa33 Add a --use-color option to clang-query to allow forcing the behavior
D62056 makes the output color if clang auto-detects a tty, but if it
does not, there is no way to force it to use colors anyway.

This patch adjusts the command-lines given to ClangTool which will
force color on or off if --use-color is specified.
2021-01-25 08:06:54 -05:00
Sam McCall 60cd75a098 [clangd] Inject context provider rather than config into ClangdServer. NFC
This is a step towards allowing CDB behavior to being configurable.

Previously ClangdServer itself created the configs and installed them into
contexts. This was natural as it knows how to deal with resulting diagnostics.

However this prevents config being used in CDB, which must be created before
ClangdServer. So we extract the context provider (config loader) as a separate
object, which publishes diagnostics to a ClangdServer::Callbacks itself.

Now initialization looks like:
 - First create the config::Provider
 - Then create the ClangdLSPServer, passing config provider
 - Next, create the context provider, passing config provider + diagnostic callbacks
 - now create the CDB, passing context provider
 - finally create ClangdServer, passing CDB, context provider, and diagnostic callbacks

Differential Revision: https://reviews.llvm.org/D95087
2021-01-22 14:34:30 +01:00
Aleksandr Platonov 7388c34685 [clangd][SwapIndex] ensure that the old index is alive while we are using it via the function returned by `SwapIndex::indexedFiles()` call
Without this patch the old index could be freed, but there still could be tries to access it via the function returned by `SwapIndex::indexedFiles()` call.
This leads to hard to reproduce clangd crashes at code completion.
This patch keeps the old index alive until the function returned by `SwapIndex::indexedFiles()` call is alive.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D95206
2021-01-22 16:26:39 +03:00
Kadir Cetinkaya 4cca222279
[clangd] Add documentation for building and testing clangd
Adds minimal cmake configuration required to build and test clangd,
while telling target names. Should be helpful for people unfamiliar with the
LLVM repo.

See https://github.com/clangd/clangd/issues/579 for a request.

Differential Revision: https://reviews.llvm.org/D91186
2021-01-22 11:53:31 +01:00
Haojian Wu facea4a2d4 [clangd] Fix a missing override keyword, NFC. 2021-01-21 11:06:43 +01:00
Hans Wennborg 8ba442bc21 Revert "Following up on PR48517, fix handling of template arguments that refer"
Combined with 'da98651 - Revert "DR2064:
decltype(E) is only a dependent', this change (5a391d3) caused verifier
errors when building Chromium. See https://crbug.com/1168494#c1 for a
reproducer.

Additionally it reverts changes that were dependent on this one, see
below.

> Following up on PR48517, fix handling of template arguments that refer
> to dependent declarations.
>
> Treat an id-expression that names a local variable in a templated
> function as being instantiation-dependent.
>
> This addresses a language defect whereby a reference to a dependent
> declaration can be formed without any construct being value-dependent.
> Fixing that through value-dependence turns out to be problematic, so
> instead this patch takes the approach (proposed on the core reflector)
> of allowing the use of pointers or references to (but not values of)
> dependent declarations inside value-dependent expressions, and instead
> treating template arguments as dependent if they evaluate to a constant
> involving such dependent declarations.
>
> This ends up affecting a bunch of OpenMP tests, due to OpenMP
> imprecisely handling instantiation-dependent constructs, bailing out
> early instead of processing dependent constructs to the extent possible
> when handling the template.
>
> Previously committed as 8c1f2d15b8, and
> reverted because a dependency commit was reverted.

This reverts commit 5a391d38ac.

It also restores clang/test/SemaCXX/coroutines.cpp to its state before
da986511fb.

Revert "[c++20] P1907R1: Support for generalized non-type template arguments of scalar type."

> Previously committed as 9e08e51a20, and
> reverted because a dependency commit was reverted. This incorporates the
> following follow-on commits that were also reverted:
>
> 7e84aa1b81 by Simon Pilgrim
> ed13d8c667 by me
> 95c7b6cadb by Sam McCall
> 430d5d8429 by Dave Zarzycki

This reverts commit 4b574008ae.

Revert "[msabi] Mangle a template argument referring to array-to-pointer decay"

> [msabi] Mangle a template argument referring to array-to-pointer decay
> applied to an array the same as the array itself.
>
> This follows MS ABI, and corrects a regression from the implementation
> of generalized non-type template parameters, where we "forgot" how to
> mangle this case.

This reverts commit 18e093faf7.
2021-01-20 15:55:35 +01:00
Haojian Wu 42830f8bdc [clangd] Extend find-refs to include overrides.
find-references on `virtual void meth^od() = 0` will include override references.

Differential Revision: https://reviews.llvm.org/D94390
2021-01-20 13:23:20 +01:00
Kadir Cetinkaya a1d4649a5b
[clangd] Fix division by zero when computing scores
NameMatch could be a float close to zero, in such cases we were
dividing by zero and moreover propogating a "NaN" to clients, which is invalid
per JSON.

This fixes the issue by only using Quality scores whenever the NameMatch is low,
as we do in CodeCompletion ranking.

Fixes https://github.com/clangd/clangd/issues/648.

Differential Revision: https://reviews.llvm.org/D94755
2021-01-20 12:50:25 +01:00
Sam McCall 2ab5fd2c85 [clangd] Retire some flags for uncontroversial, stable features.
And mark a couple to be retired afther the next release branch.

Differential Revision: https://reviews.llvm.org/D94727
2021-01-20 11:47:12 +01:00
Sam McCall e6be5c7cd6 [clangd] Remove the recovery-ast options.
These force a couple of flags or that are now on by default.
So the flags don't currently do anything unless the compile command has
-fno-recovery-ast explicitly.

(For turning recovery *off* for debugging we can inject the flag with config)

This leaves the command-line flags around with no effect, I'm planning to add
a "retired flag" mechanism shortly in a separate patch.

Differential Revision: https://reviews.llvm.org/D94724
2021-01-20 11:23:57 +01:00
Sam McCall de4ba7073b [clangd] Move DirBasedCDB broadcasting onto its own thread.
This is on the critical path (it blocks getting the compile command for
the first file).

It's not trivially fast: it involves processing all filenames in the CDB
and doing some IO to look for shadowing CDBs.

And we may make this slower soon - making CDB configurable implies evaluating
the config for each listed to see which ones really are owned by the
broadcasted CDB.

Differential Revision: https://reviews.llvm.org/D94606
2021-01-20 11:22:55 +01:00
Sam McCall 536a1b0ea2 [clangd] Allow CDBs to have background work to block on.
In preparation for moving DirectoryBasedCompilationDatabase broadcasting off
the main thread.

Differential Revision: https://reviews.llvm.org/D94603
2021-01-20 11:11:01 +01:00
Utkarsh Saxena 17846ed5af [clangd] Use ASTSignals in Heuristics CC Ranking.
Differential Revision: https://reviews.llvm.org/D94927
2021-01-19 19:48:42 +01:00
Utkarsh Saxena 8bf7116d50 [clangd] Index local classes, virtual and overriding methods.
Previously we did not record local class declarations. Now with features like
findImplementation and typeHierarchy, we have a need to index such local
classes to accurately report subclasses and implementations of methods.

Performance testing results:
- No changes in indexing timing.
- No significant change in memory usage.
- **1%** increase in #relations.
- **0.17%** increase in #refs.
- **0.22%** increase #symbols.

**New index stats**
Time to index: **4:13 min**
memory usage **543MB**
number of symbols: **521.5K**
number of refs: **8679K**
number of relations: **49K**

**Base Index stats**
Time to index: **4:15 min**
memory usage **542MB**
number of symbols: **520K**
number of refs: **8664K**
number of relations: **48.5K**

Fixes: https://github.com/clangd/clangd/issues/644

Differential Revision: https://reviews.llvm.org/D94785
2021-01-19 16:18:48 +01:00
Richard Smith 4b574008ae [c++20] P1907R1: Support for generalized non-type template arguments of scalar type.
Previously committed as 9e08e51a20, and
reverted because a dependency commit was reverted. This incorporates the
following follow-on commits that were also reverted:

7e84aa1b81 by Simon Pilgrim
ed13d8c667 by me
95c7b6cadb by Sam McCall
430d5d8429 by Dave Zarzycki
2021-01-18 21:05:01 -08:00
Utkarsh Saxena 275716d6db [clangd] Derive new signals in CC from ASTSignals.
This patch only introduces new signals but does not use their value
in scoring a CC candidate. Usage of these signals in CC ranking in both
heiristics and ML model will be introduced in later patches.

Differential Revision: https://reviews.llvm.org/D94473
2021-01-18 17:37:27 +01:00
Utkarsh Saxena 9abbc05097
[clangd] Use !empty() instead of size()>0 2021-01-17 15:26:40 +01:00
Utkarsh Saxena 0f9908a7c9
[clangd] Use empty() instead of size()>0 2021-01-17 15:13:01 +01:00
Utkarsh Saxena d5047d762f [clangd] Update CC Ranking model with better sampling.
A better sampling strategy was used to generate the dataset for this
model.
New signals introduced in this model:
- NumNameInContext: Number of words in the context that matches the name
of the candidate.
- FractionNameInContext: Fraction of the words in context matching the
name of the candidate.

We remove the signal `IsForbidden` from the model and down rank
forbidden signals aggresively.

Differential Revision: https://reviews.llvm.org/D94697
2021-01-15 18:13:24 +01:00
Adam Czachorowski c77c3d1d18 [clangd] Set correct CWD when using compile_flags.txt
This fixes a bug where clangd would attempt to set CWD to the
compile_flags.txt file itself.

Differential Revision: https://reviews.llvm.org/D94699
2021-01-15 14:26:24 +01:00
Adam Czachorowski aeaeb9e6bd [clangd] Make ExpandAutoType not available on template params.
We cannot expand auto when used inside a template param (C++17 feature),
so do not offer it there.

Differential Revision: https://reviews.llvm.org/D94719
2021-01-15 14:19:05 +01:00
Ilya Golovenko 9cc221b99b [clangd] exclude symbols from document outline which do not originate from the main file
Differential Revision: https://reviews.llvm.org/D94753
2021-01-15 13:23:12 +03:00
Sam McCall 4183999e0f [clangd] Reduce logspam for CDB scanning 2021-01-14 23:55:02 +01:00
Douglas Yung f85b153166 Add -fexceptions to test as it uses them and fails on platforms where it is not on by default (like the PS4). 2021-01-14 13:27:06 -08:00
Utkarsh Saxena 8b09cf7956
[clangd] Trivial: Documentation fix in ASTSignals. 2021-01-14 18:38:42 +01:00
Utkarsh Saxena 2f395b7092 [clangd] Make AST-based signals available to runWithPreamble.
Many useful signals can be derived from a valid AST which is regularly updated by
the ASTWorker. `runWithPreamble` does not have access to the ParsedAST
but it can be provided access to some signals derived from a (possibly
stale) AST.

Differential Revision: https://reviews.llvm.org/D94424
2021-01-14 18:34:50 +01:00
Sam McCall 17fb21f875 [clangd] Remove another option that was effectively always true. NFC 2021-01-14 17:19:47 +01:00
Mikhail Maltsev 176f5e95e1 [clang-tidy] Use DenseSet<SourceLocation> in UpgradeDurationConversionsCheck, NFCI
This change replaces `unordered_set<unsigned>` (which used to store
internal representation of `SourceLocation`-s) with
`DenseSet<SourceLocation>` (which stores `SourceLocation`-s directly).

Reviewed By: aaron.ballman, njames93

Differential Revision: https://reviews.llvm.org/D94601
2021-01-14 13:50:16 +00:00
Aleksandr Platonov 2e25be0b61 [clangd] Add main file macros into the main-file index.
This patch is a try to fix `WorkspaceSymbols.Macros` test after D93796.
If a macro definition is in the preamble section, then it appears to be in the preamble (static) index and not in the main-file (dynamic) index.
Thus, a such macro could not be found at a symbol search according to the logic that we skip symbols from the static index if the location of these symbols is inside the dynamic index files.
To fix this behavior this patch adds main file macros into the main-file (dynamic) index.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D94477
2021-01-14 15:10:17 +03:00
Kazu Hirata fb98a1be43 Fix the warnings on unused variables (NFC) 2021-01-13 13:32:40 -08:00