Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.
Differential revision: https://reviews.llvm.org/D66259
llvm-svn: 368944
Summary:
`buildMatchers` is the new, more general way to extract the matcher from a rule.
This change migrates the code to use it instead of `buildMatcher`.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65879
llvm-svn: 368700
The FileManager has been updated to return llvm::ErrorOr from getFile
and getDirectory, this commit updates all the callers of those APIs from
clang.
llvm-svn: 367617
Introduce a new check to upgrade user code based on API changes in Googletest.
The check finds uses of old Googletest APIs with "case" in their name and replaces them with the new APIs named with "suite".
Patch by Alex Strelnikov (strel@google.com)
Reviewed as D62977.
llvm-svn: 367263
Summary:
Now that clang is going to be able to build the Linux kernel again on
x86, and we have gen_compile_commands.py upstream for generating
compile_commands.json, clang-tidy can be used on the Linux kernel
source.
To that end, this commit adds a new clang-tidy module to be used for
checks specific to Linux kernel source. The Linux kernel follows its own
style of C, and it will be useful to separate those checks into their
own module.
This also adds an initial check that makes sure that return values from
the kernel error functions like PTR_ERR and ERR_PTR are checked. It also
makes sure that any functions that directly return values from these
functions are checked.
Subscribers: xazax.hun, gribozavr, Eugene.Zelenko, lebedev.ri, mgorny, jdoerfert, cfe-commits
Tags: #clang, #clang-tools-extra
Reviewers: aaron.ballman, alexfh, hokein, JonasToth
Differential Revision: https://reviews.llvm.org/D59963
llvm-svn: 367071
Summary:
Lexer::getLocForEndOfToken is defined to return an
invalid location if the given location is inside a macro.
Other checks conditionally warn based off location
validity. Updating this check to do the same.
Reviewers: JonasToth, aaron.ballman, nickdesaulniers
Reviewed By: nickdesaulniers
Subscribers: lebedev.ri, nickdesaulniers, xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64607
llvm-svn: 366353
Summary:
If there is no comment, place it at the closing brace of a namespace
definition. Previously it was placed at the next character after the
closing brace.
The new position produces a better location for highlighting in clangd
and does not seem to make matters worse for clang-tidy.
Reviewers: alexfh, hokein
Reviewed By: alexfh, hokein
Subscribers: xazax.hun, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64861
llvm-svn: 366337
Summary:
Finds non-static member functions that can be made ``static``.
I have run this check (repeatedly) over llvm-project. It made 1708 member functions
``static``. Out of those, I had to exclude 22 via ``NOLINT`` because their address
was taken and stored in a variable of pointer-to-member type (e.g. passed to
llvm::StringSwitch).
It also made 243 member functions ``const``. (This is currently very conservative
to have no false-positives and can hopefully be extended in the future.)
You can find the results here: https://github.com/mgehre/llvm-project/commits/static_const_eval
Reviewers: alexfh, aaron.ballman
Subscribers: mgorny, xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61749
llvm-svn: 366265
Summary:
Currently it fails on cases like '\001'.
Note: Since `StringLiteral::outputString` dumps most nonprintable
characters in octal value, the exact string literal format isn't preserved,
e.g. `"\x01"` becomes `'\001'`.
Reviewers: gribozavr
Reviewed By: gribozavr
Subscribers: lebedev.ri, Eugene.Zelenko, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64151
Patch by Xiaoyi Zhang.
llvm-svn: 365463
Summary:
Checks if any calls to posix functions (except posix_openpt) expect negative return values.
These functions return either 0 on success or an errno on failure, which is positive only.
Reviewers: JonasToth, gribozavr, alexfh, hokein
Reviewed By: gribozavr
Subscribers: Eugene.Zelenko, lebedev.ri, llozano, george.burgess.iv, xazax.hun, srhines, mgorny, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D63623
Patch by Jian Cai.
llvm-svn: 365007
Summary:
This revision implements support for the `AddedIncludes` field in
RewriteRule cases; that is, it supports specifying the addition of include
directives in files modified by the clang tidy check.
Reviewers: ilya-biryukov, gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D63893
llvm-svn: 364922
Summary: Tidy check behavior often depends on language and/or clang-tidy options. This revision allows a user of TranformerClangTidyCheck to pass rule _generator_ in place of a rule, where the generator takes both the language and clang-tidy options. Additionally, the generator returns an `Optional` to allow for the case where the check is deemed irrelevant/disable based on those options.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D63288
llvm-svn: 364442
Summary: The fixit `int square(int /*num*/)` yields `error: parameter name omitted` for C code. Enable it only for C++ code.
Reviewers: klimek, ilya-biryukov, lebedev.ri, aaron.ballman
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D63088
llvm-svn: 364106
Splits fuchsia-default-arguments check into two checks. fuchsia-default-arguments-calls warns if a function or method is called with default arguments. fuchsia-default-arguments-declarations warns if a function or method is declared with default parameters.
Committed on behalf of @diegoast (Diego Astiazarán).
Resolves b38051.
Differential Revision: https://reviews.llvm.org/D62437
llvm-svn: 363712
Summary: The `OptionsView` class is currently protected. This constraint prevents tidies from passing the OptionsView to, for example, a helper function. Similarly, TransformerClangTidyCheck cannot pass the `OptionsView` object to functions that generate `tooling::RewriteRule`s. The latter is needed to allow the definition of such rules to depend on the clang-tidy options, as demonstrated in the child revision.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D63287
llvm-svn: 363296
Summary: Fixed abseil-time-subtraction to work on C++17
Reviewers: hokein, gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D63261
Patch by Johan Vikström.
llvm-svn: 363272
Summary: It was trying to pass a dependent expression into constant evaluator.
Reviewers: ilya-biryukov
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D63188
llvm-svn: 363133
...in case the clang tidy plugin is linked into the clang binary.
Valgrind's memcheck reports:
8949== Invalid read ==8866== Invalid read of size 4
8866== at 0x164D248B: fetch_sub (atomic_base.h:524)
8866== by 0x164D248B: llvm::ThreadSafeRefCountedBase<clang::ast_matchers::internal::DynMatcherInterface>::Release() const (IntrusiveRefCntPtr.h:98)
8866== by 0x164CE16C: llvm::IntrusiveRefCntPtrInfo<clang::ast_matchers::internal::DynMatcherInterface>::release(clang::ast_matchers::internal::DynMatcherInterface*) (IntrusiveRefCntPtr.h:127)
8866== by 0x164C8D5C: llvm::IntrusiveRefCntPtr<clang::ast_matchers::internal::DynMatcherInterface>::release() (IntrusiveRefCntPtr.h:190)
8866== by 0x164C3B87: llvm::IntrusiveRefCntPtr<clang::ast_matchers::internal::DynMatcherInterface>::~IntrusiveRefCntPtr() (IntrusiveRefCntPtr.h:157)
8866== by 0x164BB4F1: clang::ast_matchers::internal::DynTypedMatcher::~DynTypedMatcher() (ASTMatchersInternal.h:341)
8866== by 0x164BB529: clang::ast_matchers::internal::Matcher<clang::QualType>::~Matcher() (ASTMatchersInternal.h:496)
8866== by 0xD7AE614: __cxa_finalize (cxa_finalize.c:83)
8866== by 0x164B3082: ??? (in /d2/llvm/8/qtc/builds/DebugShared/lib/libclangTidyModernizeModule.so.8)
8866== by 0x4010B72: _dl_fini (dl-fini.c:138)
8866== by 0xD7AE040: __run_exit_handlers (exit.c:108)
8866== by 0xD7AE139: exit (exit.c:139)
8866== by 0xD78CB9D: (below main) (libc-start.c:344)
8866== Address 0x19dd9bc8 is 8 bytes inside a block of size 16 free'd
8866== at 0x4C3123B: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
8866== by 0x1469BB99: clang::ast_matchers::internal::(anonymous namespace)::TrueMatcherImpl::~TrueMatcherImpl() (ASTMatchersInternal.cpp:126)
8866== by 0x1469BBC5: llvm::object_deleter<clang::ast_matchers::internal::(anonymous namespace)::TrueMatcherImpl>::call(void*) (ManagedStatic.h:30)
8866== by 0x9ABFF26: llvm::ManagedStaticBase::destroy() const (ManagedStatic.cpp:72)
8866== by 0x9ABFF94: llvm::llvm_shutdown() (ManagedStatic.cpp:84)
8866== by 0x9A65232: llvm::InitLLVM::~InitLLVM() (InitLLVM.cpp:52)
8866== by 0x14B0C8: main (driver.cpp:323)
8866== Block was alloc'd at
8866== at 0x4C3017F: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
8866== by 0x1469BB36: llvm::object_creator<clang::ast_matchers::internal::(anonymous namespace)::TrueMatcherImpl>::call() (ManagedStatic.h:24)
8866== by 0x9ABFD99: llvm::ManagedStaticBase::RegisterManagedStatic(void* (*)(), void (*)(void*)) const (ManagedStatic.cpp:42)
8866== by 0x1469B5DF: llvm::ManagedStatic<clang::ast_matchers::internal::(anonymous namespace)::TrueMatcherImpl, llvm::object_creator<clang::ast_matchers::internal::(anonymous namespace)::TrueMatcherImpl>, llvm::object_deleter<clang::ast_matchers::internal::(anonymous namespace)::TrueMatcherImpl> >::operator*() (ManagedStatic.h:67)
8866== by 0x14698F9D: clang::ast_matchers::internal::DynTypedMatcher::trueMatcher(clang::ast_type_traits::ASTNodeKind) (ASTMatchersInternal.cpp:195)
8866== by 0x164C9D3B: _ZNK5clang12ast_matchers8internal11TrueMatchercvNS1_7MatcherIT_EEINS_8QualTypeEEEv (ASTMatchersInternal.h:1247)
8866== by 0x16501458: __static_initialization_and_destruction_0(int, int) (LoopConvertCheck.cpp:48)
8866== by 0x16501976: _GLOBAL__sub_I_LoopConvertCheck.cpp (LoopConvertCheck.cpp:920)
8866== by 0x4010732: call_init (dl-init.c:72)
8866== by 0x4010732: _dl_init (dl-init.c:119)
8866== by 0x40010C9: ??? (in /lib/x86_64-linux-gnu/ld-2.27.so)
Differential Revision: https://reviews.llvm.org/D63129
llvm-svn: 363068
Instantiate a ClangTidyDiagnosticConsumer also for the plugin case and
let it forward the diagnostics to the external diagnostic engine that is
already in place.
One minor difference to the clang-tidy executable case is that the
compiler checks/diagnostics are referred to with their original name.
For example, for -Wunused-variable the plugin will refer to the check as
"-Wunused-variable" while the clang-tidy executable will refer to that
as "clang-diagnostic- unused-variable". This is because the compiler
diagnostics never reach ClangTidyDiagnosticConsumer.
Differential Revision: https://reviews.llvm.org/D61487
llvm-svn: 362702
Summary:
The assertion "isIntegerConstantExpr" is triggered in the
isIntegerConstantExpr(), we should not call it if the expression is value
dependent.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D62947
llvm-svn: 362701
On Android, pipe() is better to be replaced by pipe2() with O_CLOEXEC
flag to avoid file descriptor leakage.
Patch by Jian Cai!
Differential Revision: https://reviews.llvm.org/D61967
llvm-svn: 362673
On Android, pipe2() is better to set O_CLOEXEC flag to avoid file
descriptor leakage.
Patch by Jian Cai!
Differential Revision: https://reviews.llvm.org/D62049
llvm-svn: 362672
Summary:
Previously, we intended to omit the check fix to the case when constructor has
any braced-init-list argument. But the HasListInitializedArgument was not
correct to handle all cases (Foo(Bar{1, 2}) will return false in C++14
mode).
This patch fixes it, corrects the tests, and makes the check to run at C++17 mode.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D62736
llvm-svn: 362361
Summary:
Revise the google-objc-global-variable-declaration check to match the style guide.
This commit updates the check as follows:
(1) Do not emit fixes for extern global constants.
(2) Allow the second character of prefixes for constants to be numeric (the new guideline is that global constants should generally be named with a prefix that begins with a capital letter followed by one or more capital letters or numbers).
https://google.github.io/styleguide/objcguide.html#prefixes
This is an amended re-submission of https://reviews.llvm.org/rG12e3726fadb0b2a4d8aeed0a2817b5159f9d029d.
Contributed By: yaqiji
Reviewers: Wizard, benhamilton, stephanemoore
Reviewed By: benhamilton, stephanemoore
Subscribers: mgorny, cfe-commits, yaqiji
Tags: #clang
Differential Revision: https://reviews.llvm.org/D62045
llvm-svn: 362279
Summary:
Revise the google-objc-global-variable-declaration check to match the style guide.
This commit updates the check as follows:
(1) Do not emit fixes for extern global constants.
(2) Allow the second character of prefixes for constants to be numeric (the new guideline is that global constants should generally be named with a prefix that begins with a capital letter followed by one or more capital letters or numbers).
https://google.github.io/styleguide/objcguide.html#prefixes
Contributed by yaqiji.
Reviewers: Wizard, benhamilton, stephanemoore
Reviewed By: benhamilton, stephanemoore
Subscribers: mgorny, cfe-commits, yaqiji
Tags: #clang
Differential Revision: https://reviews.llvm.org/D62045
llvm-svn: 361907
Summary:
readability-identifier-naming causes a null pointer dereference when checking an identifier introduced by a structured binding whose right hand side is an undeclared identifier.
Running the check on a file that is just the following results in a crash:
```
auto [left] = right;
```
Patch by Mark Stegeman!
Reviewers: alexfh, hokein, aaron.ballman, JonasToth
Reviewed By: hokein, aaron.ballman
Subscribers: madsravn, xazax.hun, cfe-commits
Tags: #clang-tools-extra, #clang
Differential Revision: https://reviews.llvm.org/D62404
llvm-svn: 361809
Summary:
A range-for was added in r361647 where the range variable was only used in an
assertion. As a result, it warned for Release builds. This revision
restructures the assertion to avoid the problem.
Patch by Yitzhak Mandelbaum.
Reviewers: ilya-biryukov
Reviewed By: ilya-biryukov
Subscribers: xazax.hun, cfe-commits
Tags: #clang-tools-extra, #clang
Differential Revision: https://reviews.llvm.org/D62412
llvm-svn: 361749
Summary:
In general, the `Explanation` field is optional in `RewriteRule` cases. But,
because the primary purpose of clang-tidy checks is to provide users with
diagnostics, we assume that a missing explanation is a bug. This change adds an
assertion that checks all cases for an explanation, and updates the code to rely
on that assertion correspondingly.
Reviewers: ilya-biryukov
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D62340
llvm-svn: 361647
Summary:
Added WarnOnlyIfThisHasSuspiciousField option to allow
to catch any copy assignment operator independently from
the container class's fields.
Added the cert alias using this option.
Reviewers: aaron.ballman
Reviewed By: aaron.ballman
Subscribers: mgorny, Eugene.Zelenko, xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D62192
llvm-svn: 361550
It's uncommon to rely on temporary lifetime extension when having a
regular, non-`const&` value behaves identically. Since `Twine::str`
and `buildFixMsgForStringFlag` both return regular `std::string`s,
there's seemingly no point in having `const&` here.
llvm-svn: 361457
This revision introduces an adaptor from Transformer's rewrite rules
(`clang::tooling::RewriteRule`) to `ClangTidyCheck`. For example, given a
RewriteRule `MyCheckAsRewriteRule`, it lets one define a tidy check as follows:
```
class MyTidyCheck : public TransformerClangTidyCheck {
public:
MyTidyCheck(StringRef Name, ClangTidyContext *Context)
: TransformerClangTidyCheck(MyCheckAsRewriteRule, Name, Context) {}
};
```
Reviewers: aaron.ballman
Subscribers: mgorny, xazax.hun, cfe-commits, ilya-biryukov
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61386
llvm-svn: 361418
Summary:
run-clang-tidy.py was enforcing '-header-filter' parameter with an
unfortunate default value when none was given. Thus, leading to
overwritten clang-tidy configuration (e.g. from .clang-tidy).
This change removes the default value for '-header-filter' resulting in
the default behaviour of clang-tidy itself.
Fixes PR#41426
Reviewed By: hintonda
Patch by Torbjörn Klatt!
Tags: #clang-tools-extra, #clang
Differential Revision: https://reviews.llvm.org/D61747
llvm-svn: 361344
Jonas Devlieghere