Summary: I did not put lang opt check in AvoidSpinlockCheck since OSSpinLock is not objc specific. We won't want to skip it when analyzing some C++ target used by other ObjC sources.
Reviewers: hokein, benhamilton
Reviewed By: benhamilton
Subscribers: klimek, cfe-commits
Differential Revision: https://reviews.llvm.org/D44174
llvm-svn: 326928
Summary:
Previously, we tried to cover all "std::initializer_list" implicit conversion
cases in the code, but there are some corner cases that not covered (see
newly-added test in the patch).
Sipping all implicit AST nodes is a better way to filter out all these cases.
Reviewers: ilya-biryukov
Subscribers: klimek, xazax.hun, cfe-commits
Differential Revision: https://reviews.llvm.org/D44137
llvm-svn: 326799
Summary:
The intent was that [ar] doesn't match "FooBar"; the first character must match
a Head character (hard requirement, not just a low score).
This matches VSCode, and was "tested" but the tests were defective.
The tests expected matches("FooBar") to fail for lack of a match. But instead
it fails because the string should be annotated - matches("FooB[ar]").
This patch makes matches("FooBar") ignore annotations, as was intended.
Fixing the code to reject weak matches for the first char causes problems:
- [bre] no longer matches "HTMLBRElement".
We allow matching against an uppercase char even if we don't think it's head.
Only do this if there's at least one lowercase, to avoid triggering on MACROS
- [print] no longer matches "sprintf".
This is hard to fix without false positives (e.g. [int] vs "sprintf"])
This patch leaves this case broken. A future patch will add a dictionary
providing custom segmentation to common names from the standard library.
Fixed a couple of index tests that indirectly relied on broken fuzzy matching.
Added const in a couple of missing places for consistency with new code.
Subscribers: klimek, ilya-biryukov, jkorous-apple, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D44003
llvm-svn: 326721
Summary:
This subsumes most of the params to ClangdServer and ClangdLSPServer.
Adjacent changes:
- tests use a consistent set of options, except when testing specific options
- tests that previously used synchronous mode for convenience no longer do
- added a runAddDocument helper to SyncAPIs to mitigate the extra code
- rearranged main a bit to follow the structure of the options
Reviewers: ilya-biryukov
Subscribers: klimek, jkorous-apple, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D44088
llvm-svn: 326719
The test case previously triggered an assertion in the AST matchers because the QualType being matched is invalid. That is no longer the case after r326604.
llvm-svn: 326605
Summary:
Found by asan. Fiddling with code completion AST after
FrontendAction::Exceute can lead to errors.
Calling the callback in ProcessCodeCompleteResults to make sure we
don't access uninitialized state.
This particular issue comes from the fact that Sema::TUScope is
deleted when destructor of ~Parser runs, but still present in
Sema::TUScope and accessed when building completion items.
I'm still struggling to come up with a small repro. The relevant
stackframes reported by asan are:
ERROR: AddressSanitizer: heap-use-after-free on address
READ of size 8 at 0x61400020d090 thread T175
#0 0x5632dff7821b in llvm::SmallPtrSetImplBase::isSmall() const include/llvm/ADT/SmallPtrSet.h:195:33
#1 0x5632e0335901 in llvm::SmallPtrSetImplBase::insert_imp(void const*) include/llvm/ADT/SmallPtrSet.h:127:9
#2 0x5632e067347d in llvm::SmallPtrSetImpl<clang::Decl*>::insert(clang::Decl*) include/llvm/ADT/SmallPtrSet.h:372:14
#3 0x5632e065df80 in clang::Scope::AddDecl(clang::Decl*) tools/clang/include/clang/Sema/Scope.h:287:18
#4 0x5632e0623eea in clang::ASTReader::pushExternalDeclIntoScope(clang::NamedDecl*, clang::DeclarationName) clang/lib/Serialization/ASTReader.cpp
#5 0x5632e062ce74 in clang::ASTReader::finishPendingActions() tools/clang/lib/Serialization/ASTReader.cpp:9164:9
....
#30 0x5632e02009c4 in clang::index::generateUSRForDecl(clang::Decl const*, llvm::SmallVectorImpl<char>&) tools/clang/lib/Index/USRGeneration.cpp:1037:6
#31 0x5632dff73eab in clang::clangd::(anonymous namespace)::getSymbolID(clang::CodeCompletionResult const&) tools/clang/tools/extra/clangd/CodeComplete.cpp:326:20
#32 0x5632dff6fe91 in clang::clangd::CodeCompleteFlow::mergeResults(std::vector<clang::CodeCompletionResult, std::allocator<clang::CodeCompletionResult> > const&, clang::clangd::SymbolSlab const&)::'lambda'(clang::CodeCompletionResult const&)::operator()(clang::CodeCompletionResult const&) tools/clang/tools/extra/clangd/CodeComplete.cpp:938:24
#33 0x5632dff6e426 in clang::clangd::CodeCompleteFlow::mergeResults(std::vector<clang::CodeCompletionResult, std::allocator<clang::CodeCompletionResult> > const&, clang::clangd::SymbolSlab const&) third_party/llvm/llvm/tools/clang/tools/extra/clangd/CodeComplete.cpp:949:38
#34 0x5632dff7a34d in clang::clangd::CodeCompleteFlow::runWithSema() llvm/tools/clang/tools/extra/clangd/CodeComplete.cpp:894:16
#35 0x5632dff6df6a in clang::clangd::CodeCompleteFlow::run(clang::clangd::(anonymous namespace)::SemaCompleteInput const&) &&::'lambda'()::operator()() const third_party/llvm/llvm/tools/clang/tools/extra/clangd/CodeComplete.cpp:858:35
#36 0x5632dff6cd42 in clang::clangd::(anonymous namespace)::semaCodeComplete(std::unique_ptr<clang::CodeCompleteConsumer, std::default_delete<clang::CodeCompleteConsumer> >, clang::CodeCompleteOptions const&, clang::clangd::(anonymous namespace)::SemaCompleteInput const&, llvm::function_ref<void ()>) tools/clang/tools/extra/clangd/CodeComplete.cpp:735:5
0x61400020d090 is located 80 bytes inside of 432-byte region [0x61400020d040,0x61400020d1f0)
freed by thread T175 here:
#0 0x5632df74e115 in operator delete(void*, unsigned long) projects/compiler-rt/lib/asan/asan_new_delete.cc:161:3
#1 0x5632e0b06973 in clang::Parser::~Parser() tools/clang/lib/Parse/Parser.cpp:410:3
#2 0x5632e0b06ddd in clang::Parser::~Parser() clang/lib/Parse/Parser.cpp:408:19
#3 0x5632e0b03286 in std::unique_ptr<clang::Parser, std::default_delete<clang::Parser> >::~unique_ptr() .../bits/unique_ptr.h:236:4
#4 0x5632e0b021c4 in clang::ParseAST(clang::Sema&, bool, bool) tools/clang/lib/Parse/ParseAST.cpp:182:1
#5 0x5632e0726544 in clang::FrontendAction::Execute() tools/clang/lib/Frontend/FrontendAction.cpp:904:8
#6 0x5632dff6cd05 in clang::clangd::(anonymous namespace)::semaCodeComplete(std::unique_ptr<clang::CodeCompleteConsumer, std::default_delete<clang::CodeCompleteConsumer> >, clang::CodeCompleteOptions const&, clang::clangd::(anonymous namespace)::SemaCompleteInput const&, llvm::function_ref<void ()>) tools/clang/tools/extra/clangd/CodeComplete.cpp:728:15
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: klimek, jkorous-apple, cfe-commits, ioeric
Differential Revision: https://reviews.llvm.org/D44000
llvm-svn: 326569
Summary:
Don't actually start building ASTs for new revisions until either:
- 500ms have passed since the last revision, or
- we actually need the revision for something (or to unblock the queue)
In practice, this avoids the "first keystroke results in diagnostics" problem.
This is kind of awkward to test, and the test is pretty bad.
It can be observed nicely by capturing a trace, though.
Reviewers: hokein, ilya-biryukov
Subscribers: klimek, jkorous-apple, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D43648
llvm-svn: 326546
Summary:
Symbols with different canonical includes might be defined in the same header
(e.g. symbols defined in STL <iosfwd>). This patch adds support for mapping from
qualified symbol names to canonical headers and special mapping for symbols in <iosfwd>
Reviewers: sammccall, hokein
Reviewed By: sammccall
Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits
Differential Revision: https://reviews.llvm.org/D43869
llvm-svn: 326456
Summary:
Currently, we pick the first declaration of a symbol in a TU, which is considered
canonical in the clangIndex, as the canonical declaration in clangd. This causes
forward declarations that might appear in a random header to be used as a
canonical declaration, which is not desirable for features like go-to-declaration
or include insertion.
For example, for class X, we would consider the forward declaration in fwd.h to
be the canonical declaration, while the preferred canonical declaration should
be the actual definition in x.h.
```
// fwd.h
class X; // forward decl
// x.h
class X {};
```
This patch fixes the issue by making symbol collector favor the actual definition of
a TagDecl (i.e. class/struct/enum/union) found in a header file over the first seen
declarations in a TU. Other symbol types like functions are not handled because
using the first seen declarations as canonical declarations is usually a good
heuristic for them.
Reviewers: sammccall
Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits
Differential Revision: https://reviews.llvm.org/D43823
llvm-svn: 326313
Summary:
I'm not sure whether there are any principal reasons why it returns raw owning pointer,
or it is just a old code that was not updated post-C++11.
I'm not too sure what testing i should do, because `check-all` is not error clean here for some reason,
but it does not //appear// asif those failures are related to these changes.
This is Clang-tools-extra part.
Clang part is D43779.
Reviewers: klimek, bkramer, alexfh, pcc
Reviewed By: alexfh
Subscribers: ioeric, jkorous-apple, cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D43780
llvm-svn: 326202
Summary:
Changes:
o Store both the original header and the canonical header in LSP command.
o Also check that both original and canonical headers are not already included
by comparing both resolved header path and written literal includes.
This addresses the use case where private IWYU pragma is defined in a private
header while it would still be preferrable to include the private header, in the
internal implementation file. If we have seen that the priviate header is already
included, we don't try to insert the canonical include.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits
Differential Revision: https://reviews.llvm.org/D43510
llvm-svn: 326070
* Address a FIXME by warning the user that both -run-synchronously and -j X are
passed.
* Fix a comment to suppress clang-tidy warning by passing the correct argument
name.
Reviewers: ioeric
Subscribers: ilya-biryukov, jkorous-apple, cfe-commits
Differential Revision: https://reviews.llvm.org/D43671
llvm-svn: 326051
Summary:
The current Objective-C global variable declaration check restricts naming that is permitted by the Google Objective-C style guide.
The Objective-C style guide states the following:
"Global and file scope constants should have an appropriate prefix. [...] Constants may use a lowercase k prefix when appropriate"
http://google.github.io/styleguide/objcguide#constants
This change fixes the check to allow two or more capital letters as an appropriate prefix. This change intentionally avoids making a decision regarding whether to flag constants that use a two letter prefix (two letter prefixes are reserved by Apple¹ but many projects seem to violate this guideline).
This change eliminates an important category of false positives (constants prefixed with '[A-Z]{2,}') at the cost of introducing a less important category of false negatives (constants prefixed with only '[A-Z]'). The false positives are observed in standard recommended code while the false negatives occur in non-standard unrecommended code. The number of eliminated false positives is expected to be significantly larger than the number of exposed false negatives.
❧
(1)
"Two-letter prefixes like these are reserved by Apple for use in framework classes."
https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Conventions/Conventions.html
Reviewers: aaron.ballman, Wizard, hokein, benhamilton
Reviewed By: aaron.ballman, Wizard
Subscribers: aaron.ballman, cfe-commits
Differential Revision: https://reviews.llvm.org/D43581
llvm-svn: 326046
Summary:
This would allow us to disable diagnostics when didChange is called but
diagnostics are not wanted (e.g. code completion).
Reviewers: sammccall
Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits
Differential Revision: https://reviews.llvm.org/D43634
llvm-svn: 325813
Summary:
Implementation of DidChangeConfiguration notification handling in
clangd. This currently only supports changing one setting: the path of
the compilation database to be used for the current project. In other
words, it is no longer necessary to restart clangd with a different
command line argument in order to change the compilation database.
Reviewers: malaperle, krasimir, bkramer, ilya-biryukov
Subscribers: jkorous-apple, ioeric, simark, klimek, ilya-biryukov, arphaman, rwols, cfe-commits
Differential Revision: https://reviews.llvm.org/D39571
Signed-off-by: Simon Marchi <simon.marchi@ericsson.com>
Signed-off-by: William Enright <william.enright@polymtl.ca>
llvm-svn: 325784
Summary:
We should set the flag before creating ComplierInstance -- when
CopmilerInstance gets initialized, it also initializes the DiagnosticsEngine
using the DiagnosticOptions.
This was hidden deeply -- as clang suppresses all diagnostics when we
hit the code-completion (but internally it does do unnecessary analysis stuff).
As a bonus point, this fix will optmize the completion speed -- clang won't do
any analysis (e.g. -Wunreachable-code, -Wthread-safety-analysisi) at all internally.
Reviewers: ilya-biryukov
Reviewed By: ilya-biryukov
Subscribers: klimek, jkorous-apple, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D43569
llvm-svn: 325779
Summary:
Through the C++ API, we support for a given snapshot version:
- Yes: make sure we generate diagnostics for exactly this version
- Auto: generate eventually-consistent diagnostics for at least this version
- No: don't generate diagnostics for this version
Eventually auto should be debounced for better UX.
Through LSP, we force diagnostics for initial load (bypassing future debouncing)
and all updates follow the "auto" policy.
This is complicated to implement under the CancellationFlag design, so
rewrote that part to just inspect the queue instead.
It turns out we never pass None to the diagnostics callback, so remove Optional
from the signature. The questionable behavior of not invoking the callback at
all if CppFile::rebuild fails is not changed.
Reviewers: ilya-biryukov
Subscribers: klimek, jkorous-apple, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D43518
llvm-svn: 325774
Summary:
The new behaviors introduced by this patch:
o When include collection is enabled, we always set IncludeHeader field in Symbol
even if it's the same as FileURI in decl.
o Disable include collection in FileIndex which is currently only used to build
dynamic index. We should revisit when we actually want to use FileIndex to global
index.
o Code-completion only uses IncludeHeader to insert headers but not FileURI in
CanonicalDeclaration. This ensures that inserted headers are always canonicalized.
Note that include insertion can still be triggered for symbols that are already
included if they are merged from dynamic index and static index, but we would
only use includes that are already canonicalized (e.g. from static index).
Reason for change:
Collecting header includes in dynamic index enables inserting includes for headers
that are not indexed but opened in the editor. Comparing to inserting includes for
symbols in global/static index, this is nice-to-have but would probably require
non-trivial amount of work to get right. For example:
o Currently it's not easy to fully support CanonicalIncludes in dynamic index, given the way
we run dynamic index.
o It's also harder to reason about the correctness of include canonicalization for dynamic index
(i.e. symbols in the current file/TU) than static index where symbols are collected
offline and sanity check is possible before shipping to production.
o We have less control/flexibility over symbol info in the dynamic index
(e.g. URIs, path normalization), which could be used to help make decision when inserting includes.
As header collection (especially canonicalization) is relatively new, and enabling
it for dynamic index would immediately affect current users with only dynamic
index support, I propose we disable it for dynamic index for now to avoid
compromising other hot features like code completion and only support it for
static index where include insertion would likely to bring more value.
Reviewers: ilya-biryukov, sammccall, hokein
Subscribers: klimek, jkorous-apple, cfe-commits
Differential Revision: https://reviews.llvm.org/D43550
llvm-svn: 325764
Eugene Zelenko