Commit Graph

6417 Commits

Author SHA1 Message Date
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