[clang-tidy] Use StringRef::{starts,ends}_with (NFC)

This patch replaces uses of StringRef::{starts,ends}with with
StringRef::{starts,ends}_with for consistency with
std::{string,string_view}::{star

[clang-tidy] Use StringRef::{starts,ends}_with (NFC)

This patch replaces uses of StringRef::{starts,ends}with with
StringRef::{starts,ends}_with for consistency with
std::{string,string_view}::{starts,ends}_with in C++20.

I'm planning to deprecate and eventually remove
StringRef::{starts,ends}with.

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[clang-tidy][NFC] Fix readability-make-member-function-const findings

Fix issues found by clang-tidy in clang-tidy source directory.

[clang-tidy][NFC] Fix modernize-raw-string-literal findings

Fix issues found by clang-tidy in clang-tidy source directory.

[clang-tidy][NFC] Fix readability-container-size-empty findings

Fix issues found by clang-tidy in clang-tidy source directory.

[clang-tidy][NFC] Remove redundant allOf matcher calls

Remove calls to the `allOf` matcher in all matchers that are derived from the `VariadicDynCastAllOfMatcher`.

[clang-tidy][NFC] Use C++17 nested namespaces in the clang-tidy folder

Fix applied by running:

run-clang-tidy.py -checks=-*,modernize-concat-nested-namespaces

Differential Revision: https://review

[clang-tidy][NFC] Use C++17 nested namespaces in the clang-tidy folder

Fix applied by running:

run-clang-tidy.py -checks=-*,modernize-concat-nested-namespaces

Differential Revision: https://reviews.llvm.org/D141770

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[clang-tools-extra] Use std::optional instead of llvm::Optional (NFC)

This patch replaces (llvm::|)Optional< with std::optional<. I'll post
a separate patch to clean up the "using" declarations, #i

[clang-tools-extra] Use std::optional instead of llvm::Optional (NFC)

This patch replaces (llvm::|)Optional< with std::optional<. I'll post
a separate patch to clean up the "using" declarations, #include
"llvm/ADT/Optional.h", etc.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

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[clang-tools-extra] Add #include <optional> (NFC)

This patch adds #include <optional> to those files containing
llvm::Optional<...> or Optional<...>.

I'll post a separate patch to actually replace

[clang-tools-extra] Add #include <optional> (NFC)

This patch adds #include <optional> to those files containing
llvm::Optional<...> or Optional<...>.

I'll post a separate patch to actually replace llvm::Optional with
std::optional.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

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[clang-tools-extra] llvm::Optional::value => operator*/operator->

std::optional::value() has undesired exception checking semantics and is
unavailable in older Xcode (see _LIBCPP_AVAILABILITY_BAD_OP

[clang-tools-extra] llvm::Optional::value => operator*/operator->

std::optional::value() has undesired exception checking semantics and is
unavailable in older Xcode (see _LIBCPP_AVAILABILITY_BAD_OPTIONAL_ACCESS). The
call sites block std::optional migration.

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[clang-tidy] Use std::nullopt instead of None (NFC)

This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated. The intent is to reduce
the amount

[clang-tidy] Use std::nullopt instead of None (NFC)

This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated. The intent is to reduce
the amount of manual work required in migrating from Optional to
std::optional.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

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Use value instead of getValue (NFC)

Don't use Optional::hasValue (NFC)

This patch replaces x.hasValue() with x where x is contextually
convertible to bool.

Revert "Don't use Optional::hasValue (NFC)"

This reverts commit aa8feeefd3ac6c78ee8f67bf033976fc7d68bc6d.

Don't use Optional::hasValue (NFC)

Don't use Optional::hasValue (NFC)

[clang-tidy] Use nullptr instead of 0 or NULL (NFC)

Identified with modernize-use-nullptr.

[clang-tidy] Applied clang-tidy fixes. NFC

Applied fixes enabled by the LLVM's .clang-tidy configs. Reverted files where
fixes introduced compile errors:
clang-tools-extra/clang-tidy/hicpp/NoAssem

[clang-tidy] Applied clang-tidy fixes. NFC

Applied fixes enabled by the LLVM's .clang-tidy configs. Reverted files where
fixes introduced compile errors:
clang-tools-extra/clang-tidy/hicpp/NoAssemblerCheck.cpp
clang-tools-extra/clang-tidy/misc/ThrowByValueCatchByReferenceCheck.cpp

$ clang-tools-extra/clang-tidy/tool/run-clang-tidy.py -fix clang-tools-extra/clang-tidy/
Enabled checks:
llvm-else-after-return
llvm-header-guard
llvm-include-order
llvm-namespace-comment
llvm-prefer-isa-or-dyn-cast-in-conditionals
llvm-prefer-register-over-unsigned
llvm-qualified-auto
llvm-twine-local
misc-definitions-in-headers
misc-misplaced-const
misc-new-delete-overloads
misc-no-recursion
misc-non-copyable-objects
misc-redundant-expression
misc-static-assert
misc-throw-by-value-catch-by-reference
misc-unconventional-assign-operator
misc-uniqueptr-reset-release
misc-unused-alias-decls
misc-unused-using-decls
readability-identifier-naming

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D95614

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[clang-tidy] Fix a crash in bugprone-not-null-terminated-result check when `__STDC_WANT_LIB_EXT1__` is not a literal.

If `__STDC_WANT_LIB_EXT1__` is not a literal (e.g. `#define __STDC_WANT_LIB_EXT1

[clang-tidy] Fix a crash in bugprone-not-null-terminated-result check when `__STDC_WANT_LIB_EXT1__` is not a literal.

If `__STDC_WANT_LIB_EXT1__` is not a literal (e.g. `#define __STDC_WANT_LIB_EXT1__ ((unsigned)1)`) bugprone-not-null-terminated-result check crashes.
Stack dump:
```
#0 0x0000000002185e6a llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/llvm-project/build/bin/clang-tidy+0x2185e6a)
#1 0x0000000002183e8c llvm::sys::RunSignalHandlers() (/llvm-project/build/bin/clang-tidy+0x2183e8c)
#2 0x0000000002183ff3 SignalHandler(int) (/llvm-project/build/bin/clang-tidy+0x2183ff3)
#3 0x00007f08d91b1390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
#4 0x00000000021338bb llvm::StringRef::getAsInteger(unsigned int, llvm::APInt&) const (/llvm-project/build/bin/clang-tidy+0x21338bb)
#5 0x000000000052051c clang::tidy::bugprone::NotNullTerminatedResultCheck::check(clang::ast_matchers::MatchFinder::MatchResult const&) (/llvm-project/build/bin/clang-tidy+0x52051c)
```

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85525

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[clang-tidy] Fix a crash in bugprone-not-null-terminated-result check when `__STDC_WANT_LIB_EXT1__` was undefined after definition.

PP->getMacroInfo() returns nullptr for undefined macro, so we need

[clang-tidy] Fix a crash in bugprone-not-null-terminated-result check when `__STDC_WANT_LIB_EXT1__` was undefined after definition.

PP->getMacroInfo() returns nullptr for undefined macro, so we need to check this return value before dereference.
Stack dump:
```
#0 0x0000000002185e6a llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/llvm-project/build/bin/clang-tidy+0x2185e6a)
#1 0x0000000002183e8c llvm::sys::RunSignalHandlers() (/llvm-project/build/bin/clang-tidy+0x2183e8c)
#2 0x0000000002183ff3 SignalHandler(int) (/llvm-project/build/bin/clang-tidy+0x2183ff3)
#3 0x00007f37df9b1390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
#4 0x000000000052054e clang::tidy::bugprone::NotNullTerminatedResultCheck::check(clang::ast_matchers::MatchFinder::MatchResult const&) (/llvm-project/build/bin/clang-tidy+0x52054e)
```

Reviewed By: hokein

Differential Revision: https://reviews.llvm.org/D85523

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[clang-tidy][NFC] Remove unnecessary includes throughout clang-tidy header files

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D82661

[clang-tidy] Convert config options that are bools to use the bool overload of get(GlobalOrLocal)?

Summary: This was done with a script that looks for calls to Options.get(GlobalOrLocal) that take a

[clang-tidy] Convert config options that are bools to use the bool overload of get(GlobalOrLocal)?

Summary: This was done with a script that looks for calls to Options.get(GlobalOrLocal) that take an integer for the second argument and the result is either compared not equal to 0 or implicitly converted to bool. There may be other occurances

Reviewers: aaron.ballman, alexfh, gribozavr2

Reviewed By: aaron.ballman

Subscribers: wuzish, nemanjai, xazax.hun, kbarton, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D77831

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Make llvm::StringRef to std::string conversions explicit.

This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.

This is mostly m

Make llvm::StringRef to std::string conversions explicit.

This is how it should've been and brings it more in line with
std::string_view. There should be no functional change here.

This is mostly mechanical from a custom clang-tidy check, with a lot of
manual fixups. It uncovers a lot of minor inefficiencies.

This doesn't actually modify StringRef yet, I'll do that in a follow-up.

show more ...

Fix trivial typos in comments; NFC

[clang-tidy] bugprone-not-null-terminated-result: checker adjustments 2

llvm-svn: 374712

[clang-tidy] bugprone-not-null-terminated-result: checker adjustments

llvm-svn: 374711