This checks finds all primitive type local variables (integers, doubles, pointers) that are declared without an initial value. Includes fixit functionality to initialize said variables with a default value. This is zero for most types and NaN for floating point types. The use of NaNs is copied from the D programming language.
Patch by Jussi Pakkanen.
llvm-svn: 373489
Summary:
This patch disable extraction of the body of the enclosing function.
`void f() [[{}]]`
Extracting this CompoundStmt would leave the enclosing function without
a body.
Reviewers: sammccall, kadircet
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68245
llvm-svn: 373472
Summary:
We weren't always checking if children are RootStmts in ExtractFunction.
For `void f([[int a]]);`, the ParmVarDecl appeared as a RootStmt since
we didn't perform the check and ended up being casted to a (null) Stmt.
Reviewers: sammccall, kadircet
Subscribers: kristof.beyls, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68182
llvm-svn: 373471
Summary:
This would reduce the false positive when the static index is in an
unavailable state, e.g. background index is not finished.
Reviewers: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68325
llvm-svn: 373444
Summary:
Previously they would be marked as partially-selected based on the early claim,
and never updated as no more tokens were claimed.
This affects simple VarDecls like "int x".
Reviewers: SureYeaah
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D66872
llvm-svn: 373442
Summary:
Editors only know about file URIs, make sure we do not use any custom
schemes while sending edits.
Reviewers: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68324
llvm-svn: 373435
The patch committed was not the accepted version but the
previous one. This commit fixes this issue.
Differential Revision: https://reviews.llvm.org/D64736
llvm-svn: 373428
Summary:
OSSpinLock* are Apple/Darwin functions, but were previously located with ObjC checks as those were most closely tied to Apple platforms before.
Now that there's a specific Darwin module, relocating the check there.
This change was prepared by running rename_check.py.
Contributed By: mwyman
Reviewers: stephanemoore, dmaclach
Reviewed By: stephanemoore
Subscribers: Eugene.Zelenko, mgorny, xazax.hun, cfe-commits
Tags: #clang-tools-extra, #clang, #llvm
Differential Revision: https://reviews.llvm.org/D68148
llvm-svn: 373392
Summary:
This will fix some bugs where navigation doesn't work on cases like
`std::cout <^< "hello"`.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67695
llvm-svn: 373323
Summary:
If the file heuristic fails, we try to use the index&AST to do the
header/source inference.
Reviewers: kadircet
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68211
llvm-svn: 373320
Summary: When creating the module, must have copy-pasted from the misc module, and forgotten to update the name/description of the module in the registry.
Reviewers: stephanemoore, benhamilton, gribozavr
Reviewed By: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang, #clang-tools-extra, #llvm
Differential Revision: https://reviews.llvm.org/D68251
llvm-svn: 373304
Summary:
This patch implements another version header-source switch by incorporating the
AST and index, it will be used:
- to improve the current header-source switch feature (layer with the
existing file heuristic);
- by the incoming define-outline code action;
Reviewers: kadircet
Subscribers: mgorny, ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67907
llvm-svn: 373197
Instead, put all checks in a cmake variable and reference this.
Also, make clangd use the the ClangTidyForceLinker.h header instead
of duplicating the list of modules -- the duplicate copy was missing
the new "darwin" checker added in r373065.
Differential Revision: https://reviews.llvm.org/D68132
llvm-svn: 373082
Summary:
Creates a new darwin ClangTidy module and adds the darwin-dispatch-once-nonstatic check that warns about dispatch_once_t variables not in static or global storage. This catches a missing static for local variables in e.g. singleton initialization behavior, and also warns on storing dispatch_once_t values in Objective-C instance variables. C/C++ struct/class instances may potentially live in static/global storage, and are ignored for this check.
The osx.API static analysis checker can find the non-static storage use of dispatch_once_t; I thought it useful to also catch this issue in clang-tidy when possible.
This is a re-land of https://reviews.llvm.org/D67567
Reviewers: thakis, gribozavr, stephanemoore
Subscribers: Eugene.Zelenko, mgorny, xazax.hun, jkorous, arphaman, kadircet, usaxena95
Tags: #clang-tools-extra, #clang, #llvm
Differential Revision: https://reviews.llvm.org/D68109
llvm-svn: 373065
Summary:
Creates a new darwin ClangTidy module and adds the darwin-dispatch-once-nonstatic check that warns about dispatch_once_t variables not in static or global storage. This catches a missing static for local variables in e.g. singleton initialization behavior, and also warns on storing dispatch_once_t values in Objective-C instance variables. C/C++ struct/class instances may potentially live in static/global storage, and are ignored for this check.
The osx.API static analysis checker can find the non-static storage use of dispatch_once_t; I thought it useful to also catch this issue in clang-tidy when possible.
Contributed By: mwyman
Reviewers: benhamilton, hokein, stephanemoore, aaron.ballman, gribozavr
Reviewed By: stephanemoore, gribozavr
Subscribers: jkorous, arphaman, kadircet, usaxena95, NoQ, xazax.hun, lebedev.ri, mgorny, cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D67567
llvm-svn: 373028
Summary:
We have turned on the flag manually and used it for a while, and don't see any
major issues, let's enable it by default.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68077
llvm-svn: 372969
Summary:
To be used by define-inline code action to determine whether the
function/method body will still be valid in another context.
Traverses clang-ast to find all decl nodes under the function decl and stores
the non-local ones.
Reviewers: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67748
llvm-svn: 372948
Summary:
Recursive AST requires non-const ast nodes, but it doesn't really
mutate them. In addition to that, in clangd we mostly have const ast nodes. So
it makes sense to move the const_cast into callee rather than having it at every
caller in the future.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68027
llvm-svn: 372888
Summary:
This adds semantic selection to the LSP Server.
Adds support for serialization of input request and the output reply.
Also adds regression tests for the feature.
Currently we do not support multi cursor.The LSP Server only accepts single position in the request as opposed to many position in the spec.
Spec:
https://github.com/microsoft/language-server-protocol/blob/dbaeumer/3.15/specification.md#textDocument_selectionRange
Reviewers: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67720
llvm-svn: 372753
Summary:
- store all macro references in the ParsedAST;
- unify the two variants of CollectMainFileMacros;
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, mgrang, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67496
llvm-svn: 372725
In r372681 lang_cxx_11 and lang_cxx_14 were added to LanguageIDs
but they were not handled in the switch in VisitLinkageSpecDecl in
Modularize.cpp so at clang 8 complained with
/data/repo/master/clang-tools-extra/modularize/Modularize.cpp:583:13: error: enumeration values 'lang_cxx_11' and 'lang_cxx_14' not handled in switch [-Werror,-Wswitch]
switch (D->getLanguage()) {
^
1 error generated.
With this patch we now treat lang_cxx, lang_cxx_11 and lang_cxx_14 the
same way in the switch in VisitLinkageSpecDecl.
llvm-svn: 372714
Finding infinite loops is well-known to be impossible (halting problem).
However, it is possible to detect some obvious infinite loops, for example,
if the loop condition is not changed. Detecting such loops is beneficial
since the tests will hang on programs containing infinite loops so
testing-time detection may be costly in large systems. Obvious cases are
where the programmer forgets to increment/decrement the counter or
increments/decrements the wrong variable.
Differential Revision: https://reviews.llvm.org/D64736
-------
Broke some buildbots "No SOURCES given to target: obj.clangTidyBugproneModule"
llvm-svn: 372704
Finding infinite loops is well-known to be impossible (halting problem).
However, it is possible to detect some obvious infinite loops, for example,
if the loop condition is not changed. Detecting such loops is beneficial
since the tests will hang on programs containing infinite loops so
testing-time detection may be costly in large systems. Obvious cases are
where the programmer forgets to increment/decrement the counter or
increments/decrements the wrong variable.
Differential Revision: https://reviews.llvm.org/D64736
llvm-svn: 372693
Summary:
Apple documentation states that:
"If two objects are equal, they must have the same hash value. This last
point is particularly important if you define isEqual: in a subclass and
intend to put instances of that subclass into a collection. Make sure
you also define hash in your subclass."
https://developer.apple.com/documentation/objectivec/1418956-nsobject/1418795-isequal?language=objc
In many or all versions of libobjc, -[NSObject isEqual:] is a pointer
equality check and -[NSObject hash] returns the messaged object's
pointer. A relatively common form of developer error is for a developer to
override -isEqual: in a subclass without overriding -hash to ensure that
hashes are equal for objects that are equal.
It is assumed that an override of -isEqual: is a strong signal for
changing the object's equality operator to something other than pointer
equality which implies that a missing override of -hash could result in
distinct objects being equal but having distinct hashes because they are
independent instances. This added check flags classes that override
-isEqual: but inherit NSObject's implementation of -hash to warn of the
potential for unexpected behavior.
The proper implementation of -hash is the responsibility of the
developer and the check will only verify that the developer made an
effort to properly implement -hash. Developers can set up unit tests
to verify that their implementation of -hash is appropriate.
Test Notes:
Ran check-clang-tools.
Reviewers: aaron.ballman, benhamilton
Reviewed By: aaron.ballman
Subscribers: Eugene.Zelenko, mgorny, xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67737
llvm-svn: 372445
Summary:
Clang-tidy supports output diagnostics from header files if user
specifies --header-filter. But it can't handle relative path well.
For example, the folder structure of a project is:
```
// a.h is in /src/a/a.h
// b.h is in /src/b/b.h
...
// c.cpp is in /src/c.cpp
```
Now, we set --header-filter as --header-filter=/a/. That means we only
want to check header files under /src/a/ path, and ignore header files
uder /src/b/ path, but in current implementation, clang-tidy will check
/src/b/b.h also, because the name of b.h used in clang-tidy is
/src/a/../b/b.h.
This change tries to fix this issue.
Reviewers: alexfh, hokein, aaron.ballman, gribozavr
Reviewed By: gribozavr
Subscribers: MyDeveloperDay, xazax.hun, cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D67501
Patch by Yubo Xie.
llvm-svn: 372388
Summary:
After revision 370919, this check incorrectly flags certain cases of implicit
constructors. Specifically, if an argument is annotated with an
argument-comment and the argument expression triggers an implicit constructor,
then the argument comment is associated with argument of the implicit
constructor.
However, this only happens when the constructor has more than one argument.
This revision fixes the check for implicit constructors and adds a regression
test for this case.
Note: r370919 didn't cause this bug, it simply uncovered it by fixing another
bug that was masking the behavior.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67744
llvm-svn: 372317
Summary:
Adds Semantic Ranges capabilities to Clangd server.
Also adds tests for running it via clangd server.
This differs from the LSP spec as the spec needs this to be evaluated on multiple 'pos' and the expected output is an list of list of semantic ranges.
This is majorly for multi cursor and assuming this is a rare thing, we don't want to optimize make things complicated just for this.
This should be done in the LSP level by queueing one request per 'pos' in the input.
LSP Spec:
https://github.com/microsoft/language-server-protocol/blob/dbaeumer/3.15/specification.md#textDocument_selectionRange
Reviewers: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67650
llvm-svn: 372102
This check now also checks if any calls to pthread_* functions expect negative return values. These functions return either 0 on success or an errno on failure, which is positive only.
llvm-svn: 372037
Summary:
- Functions to compute highlighting kinds for things are separated from
the ones that add highlighting tokens.
This keeps each of them more focused on what they're doing: getting
locations and figuring out the kind of the entity, correspondingly.
- Less special cases in visitor for various nodes.
This change is an NFC.
Reviewers: hokein
Reviewed By: hokein
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67341
llvm-svn: 372008
Summary:
For a given cursor position, it returns ranges that are interesting to the user.
Currently the semantic ranges correspond to the nodes of the syntax trees.
Subscribers: mgorny, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67358
llvm-svn: 371976
Summary:
The renamelib uses a tricky way to calculate the end location by relying
on decl name, this is incorrect for the overloaded operator (the name is
"operator++" instead of "++"), which will cause out-of-file offset.
We also disable renaming operator symbol, this case is tricky, and
renamelib doesnt handle it properly.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67607
llvm-svn: 371971
Summary:
Finds calls that add element to protobuf repeated field in a loop
without calling Reserve() before the loop. Calling Reserve() first can avoid
unnecessary memory reallocations.
A new option EnableProto is added to guard this feature.
Patch by Cong Liu!
Reviewers: gribozavr, alexfh, hokein, aaron.ballman
Reviewed By: hokein
Subscribers: lebedev.ri, xazax.hun, Eugene.Zelenko, cfe-commits
Tags: #clang, #clang-tools-extra
Differential Revision: https://reviews.llvm.org/D67135
llvm-svn: 371963
At this point the PathDiagnostic, PathDiagnosticLocation, PathDiagnosticPiece
structures no longer rely on anything specific to Static Analyzer, so we can
move them out of it for everybody to use.
PathDiagnosticConsumers are still to be handed off.
Differential Revision: https://reviews.llvm.org/D67419
llvm-svn: 371661
Summary:
This takes ~5% of time when running clangd unit tests.
To achieve this, move mapping of system includes out of CanonicalIncludes
and into a separate class
Reviewers: sammccall, hokein
Reviewed By: sammccall
Subscribers: MaskRay, jkorous, arphaman, kadircet, jfb, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67172
llvm-svn: 371408
Summary:
We still attempt to highlight them as underlying types, but fallback to
the generic 'typedef' highlighting kind if the underlying type is too
complicated.
Reviewers: hokein
Reviewed By: hokein
Subscribers: nridge, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67290
llvm-svn: 371402
Summary:
The bugprone-use-after-move check exhibits false positives for certain uses of
the C++17 if/switch init statements. These false positives are caused by a bug
in the ExprSequence calculations.
This revision adds tests for the false positives and fixes the corresponding
sequence calculation.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67292
llvm-svn: 371396
Summary:
First patch for propogating multifile changes from tweak outputs to LSP
WorkspaceEdits.
Uses SM to convert tooling::Replacements to TextEdits.
Errors out if there are any inconsistencies between the draft version and the
version generated the edits.
Reviewers: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D66637
llvm-svn: 371392
Summary:
Template parameters were handled outside `addType`, this led to lack of highlightings for typedefs
to template types.
This was never desirable, we want to highlight our typedefs as their underlying type.
Note that typedefs to more complicated types, like pointers and references are still not highlighted.
Original patch by Johan Vikström.
Reviewers: hokein, jvikstrom
Reviewed By: hokein
Subscribers: nridge, javed.absar, kristof.beyls, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D66516
llvm-svn: 371379
Summary:
The latter simplifies the client code by avoiding the need to handle it
as a separate case statement.
Reviewers: hokein
Reviewed By: hokein
Subscribers: nridge, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67277
llvm-svn: 371375
Summary:
Instead of matching lists of highlightings, we annotate input code with
resulting highlightings and diff it against the expected annotated input.
In case of failures, this produces much nicer output in form of text-based
diffs.
Reviewers: hokein
Reviewed By: hokein
Subscribers: nridge, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67274
llvm-svn: 371373
Summary:
Add bugprone-argument-comment option: IgnoreSingleArgument.
When true, the check will ignore the single argument.
Sometimes, it's not necessary to add comment to single argument.
For example:
> std::string name("Yubo Xie");
> pScreen->SetWidth(1920);
> pScreen->SetHeight(1080);
This option can ignore such single argument in bugprone-argument-comment check.
Reviewers: alexfh
Reviewed By: alexfh
Subscribers: cfe-commits
Tags: #clang
Patch by Yubo Xie.
Differential Revision: https://reviews.llvm.org/D67056
llvm-svn: 371075
Summary:
so that we don't have too many usage from the client side (just a single
occurrance for register), this also aligns with how other builtin feature
being implemented in vscode.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67165
llvm-svn: 371036
Summary:
The check was generating a fix without taking qualifiers in return type
into account. This patch changes the insertion location to be before qualifers.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67213
llvm-svn: 371022
Summary:
This significantly reduces the time required to run clangd tests, by
~10%.
Should also have an effect on other tests that run command-line parsing
multiple times inside a single invocation.
Reviewers: gribozavr, sammccall
Reviewed By: sammccall
Subscribers: kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67163
llvm-svn: 370908
Aaron Ballman