[clang-format] Reformat. NFC.

[clang-format] Fix namespace format when the name is followed by a macro

Example:
```
$ cat a.cpp
namespace my_namespace::yeah API_AVAILABLE(macos(10.15)) {
void test() {}
}

$ clang-format a.cpp
na

[clang-format] Fix namespace format when the name is followed by a macro

Example:
```
$ cat a.cpp
namespace my_namespace::yeah API_AVAILABLE(macos(10.15)) {
void test() {}
}

$ clang-format a.cpp
namespace my_namespace::yeah API_AVAILABLE(macos(10.15)) {
void test() {}
}// namespace my_namespace::yeahAPI_AVAILABLE(macos(10.15))
```
After:
```
$ clang-format a.cpp
namespace my_namespace::yeah API_AVAILABLE(macos(10.15)) {
void test() {}
}// namespace my_namespace::yeah
```

Reviewed By: MyDeveloperDay, owenpan, curdeius

Differential Revision: https://reviews.llvm.org/D121269

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[clang-format] Fix namespace end comments in ObjC++ files too

See also d96ae867351ec.

Differential Revision: https://reviews.llvm.org/D121112

[clang-format] fix namepsace format when the name is macro expansion

Originally filed at crbug.com/1184570.
When the name of a namespace is a macro that takes arguments,
- It fixed the indentation.

[clang-format] fix namepsace format when the name is macro expansion

Originally filed at crbug.com/1184570.
When the name of a namespace is a macro that takes arguments,
- It fixed the indentation.
- It fixed the namepsace end comments.

Differential Revision: https://reviews.llvm.org/D120931

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[clang-format] Fix namespace end comments fixer with anonymous namespaces.

Previously, a strange trailing comment was produced:
```
namespace out { namespace {
}} // namespace out::
```
(mind the "o

[clang-format] Fix namespace end comments fixer with anonymous namespaces.

Previously, a strange trailing comment was produced:
```
namespace out { namespace {
}} // namespace out::
```
(mind the "out::").

Reviewed By: MyDeveloperDay, owenpan

Differential Revision: https://reviews.llvm.org/D117289

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[clang-format] FixNamespaceComments does not understand namespace aliases

https://github.com/llvm/llvm-project/issues/35876

Ensure a namespace alias doesn't get incorrectly identifier as a namespac

[clang-format] FixNamespaceComments does not understand namespace aliases

https://github.com/llvm/llvm-project/issues/35876

Ensure a namespace alias doesn't get incorrectly identifier as a namespace

Reviewed By: HazardyKnusperkeks, curdeius, owenpan

Differential Revision: https://reviews.llvm.org/D115647

Fixes: #35876

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[clang-format][PR47290] Add ShortNamespaceLines format option

clang-format documentation states that having enabled
FixNamespaceComments one may expect below code:

c++
namespace a {
foo();
}

to be

[clang-format][PR47290] Add ShortNamespaceLines format option

clang-format documentation states that having enabled
FixNamespaceComments one may expect below code:

c++
namespace a {
foo();
}

to be turned into:

c++
namespace a {
foo();
} // namespace a

In reality, no "// namespace a" was added. The problem was too high
value of kShortNamespaceMaxLines, which is used while deciding whether
a namespace is long enough to be formatted.

As with 9163fe2, clang-format idempotence is preserved.

Differential Revision: https://reviews.llvm.org/D87587

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[clang-format] Drop clangFrontend dependency for FormatTests

This allows building the clang-format unit tests in only 657 ninja steps
rather than 1257 which allows for much faster incremental builds

[clang-format] Drop clangFrontend dependency for FormatTests

This allows building the clang-format unit tests in only 657 ninja steps
rather than 1257 which allows for much faster incremental builds after a
git pull.

Reviewed By: MyDeveloperDay
Differential Revision: https://reviews.llvm.org/D89709

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[clang-format] [PR46130] When editing a file with unbalance {} the namespace comment fixer can incorrectly comment the wrong closing brace

Summary:
https://bugs.llvm.org/show_bug.cgi?id=46130 from

[clang-format] [PR46130] When editing a file with unbalance {} the namespace comment fixer can incorrectly comment the wrong closing brace

Summary:
https://bugs.llvm.org/show_bug.cgi?id=46130 from Twitter https://twitter.com/ikautak/status/1265998988232159232

I have seen this myself many times.. if you have format on save and you work in an editor where you are constantly saving (:w muscle memory)

If you are in the middle of editing and somehow you've missed a { or } in your code, somewhere, often way below where you are at the bottom of your file the namespace comment fixer will have put the namespace on the previous closing brace.

This leads to you having to fix up the bottom of the file.

This revision prevents that happening by performing an initial pass of the tokens and simply counting the number of `{` and `}` and ensuring they balance.

If they don't balance we don't do any namespace fixing as it will likely be unstable and incorrect.

Reviewed By: curdeius

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D80830

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[clang-format] NFC - clang-format the FormatTests

Summary:
Ensure the clang-format unit tests are themselves clang-formatted

Having areas of the llvm code which are clang-format clean, give us more

[clang-format] NFC - clang-format the FormatTests

Summary:
Ensure the clang-format unit tests are themselves clang-formatted

Having areas of the llvm code which are clang-format clean, give us more areas to run new clang-format binaries on ensuring we haven't broken anything.

It seems to me we SHOULD have this clang-formatted at a minimum, otherwise how can we expect others to use clang-format if we "don't eat our own dogfood", also if the tests are dependent on the formatting of the code then that would also be bad!

Reviewed By: sammccall

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D79204

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clang-format: Fix namespace end comments for namespaces with attributes and macros.

Fixes PR39247.

While here, also make C++20 `namespace A::inline B::inline C` nested
inline namespaced definitions

clang-format: Fix namespace end comments for namespaces with attributes and macros.

Fixes PR39247.

While here, also make C++20 `namespace A::inline B::inline C` nested
inline namespaced definitions work.

Before:
#define DEPRECATE_WOOF [[deprecated("meow")]]

namespace DEPRECATE_WOOF woof {
void f() {}
} // namespace DEPRECATE_WOOFwoof

namespace [[deprecated("meow")]] woof {
void f() {}
} // namespace [[deprecated("meow")]]woof

namespace woof::inline bark {
void f() {}
} // namespace woof::inlinebark

Now:
#define DEPRECATE_WOOF [[deprecated("meow")]]

namespace DEPRECATE_WOOF woof {
void f() {}
} // namespace woof

namespace [[deprecated("meow")]] woof {
void f() {}
} // namespace woof

namespace woof::inline bark {
void f() {}
} // namespace woof::inline bark

(In addition to the fixed namespace end comments, also note the correct
indent of the namespace contents.)

Differential Revision: https://reviews.llvm.org/D65125

llvm-svn: 366831

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clang-format: better handle namespace macros

Summary:
Other macros are used to declare namespaces, and should thus be handled
similarly. This is the case for crpcut's TESTSUITE macro, or for
unittes

clang-format: better handle namespace macros

Summary:
Other macros are used to declare namespaces, and should thus be handled
similarly. This is the case for crpcut's TESTSUITE macro, or for
unittest-cpp's SUITE macro:

TESTSUITE(Foo) {
TEST(MyFirstTest) {
assert(0);
}
} // TESTSUITE(Foo)

This patch deals with this cases by introducing a new option to specify
lists of namespace macros. Internally, it re-uses the system already in
place for foreach and statement macros, to ensure there is no impact on
performance.

Reviewers: krasimir, djasper, klimek

Reviewed By: klimek

Subscribers: acoomans, cfe-commits, klimek

Tags: #clang

Differential Revision: https://reviews.llvm.org/D37813

llvm-svn: 362740

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[NFC] clang-format: Use LLVM style in NamespaceEndCommentsFixerTest

As pointed out in https://reviews.llvm.org/D37813#inline-555026, the
code which is formatted does not match LLVM formatting style.

[NFC] clang-format: Use LLVM style in NamespaceEndCommentsFixerTest

As pointed out in https://reviews.llvm.org/D37813#inline-555026, the
code which is formatted does not match LLVM formatting style.

Technically this is not a problem since these tests bypass most of the
formatter, but it can be misleading.

llvm-svn: 361984

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Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the ne

Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636

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[clang] Update uses of DEBUG macro to LLVM_DEBUG.

The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\

[clang] Update uses of DEBUG macro to LLVM_DEBUG.

The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM

Explicitly avoided changing the strings in the clang-format tests.

Differential Revision: https://reviews.llvm.org/D44975

llvm-svn: 332350

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clang-format: fix block OpeningLineIndex around preprocessor

Summary:
The current code would return an incorrect value when a preprocessor
directive is present immediately after the opening brace: t

clang-format: fix block OpeningLineIndex around preprocessor

Summary:
The current code would return an incorrect value when a preprocessor
directive is present immediately after the opening brace: this causes
the nanespace end comment fixer to break in some places, for exemple it
would not add the comment in this case:

namespace a {
#define FOO
}

Fixing the computation is simple enough, but it was breaking a feature,
as it would cause comments to be added also when the namespace
declaration was dependant on conditional compilation.

To fix this, a hash of the current preprocessor stack/branches is
computed at the beginning of parseBlock(), so that we explicitely do not
store the OpeningLineIndex when the beginning and end of the block are
not in the same preprocessor conditions.

Tthe hash is computed based on the line, but this could propbably be
improved by using the actual condition, so that clang-format would be
able to match multiple identical #ifdef blocks.

Reviewers: krasimir, djasper

Reviewed By: krasimir

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D35483

llvm-svn: 309369

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clang-format: Add CompactNamespaces option

Summary:
Add CompactNamespaces option, to pack namespace declarations on the
same line (somewhat similar to C++17 nested namespace definition).

With this

clang-format: Add CompactNamespaces option

Summary:
Add CompactNamespaces option, to pack namespace declarations on the
same line (somewhat similar to C++17 nested namespace definition).

With this option, consecutive namespace declarations are kept on the
same line:

namespace foo { namespace bar {
...
}} // namespace foo::bar

Reviewers: krasimir, djasper, klimek

Reviewed By: djasper

Subscribers: kimgr, cfe-commits, klimek

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D32480

llvm-svn: 305384

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[clang-format] Clang-tidy cleanup of NamespaceEndCommentFixerTest.cpp, NFC

llvm-svn: 300983

[clang-format] fix crash in NamespaceEndCommentsFixer (PR32438)

Summary:
The new test case was crashing before. Now it passes
as expected.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Diff

[clang-format] fix crash in NamespaceEndCommentsFixer (PR32438)

Summary:
The new test case was crashing before. Now it passes
as expected.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D31441

llvm-svn: 299465

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[clang-format] Support namespaces ending in semicolon

Summary:
This patch adds support for namespaces ending in semicolon to the namespace comment fixer.
source:
```
namespace A {
int i;
int j;

[clang-format] Support namespaces ending in semicolon

Summary:
This patch adds support for namespaces ending in semicolon to the namespace comment fixer.
source:
```
namespace A {
int i;
int j;
};
```
clang-format before:
```
namespace A {
int i;
int j;
} // namespace A;
```
clang-format after:
```
namespace A {
int i;
int j;
}; // namespace A
```

Reviewers: djasper

Reviewed By: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D30688

llvm-svn: 297140

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[clang-format] Add tests for ambiguous namespaces to the comment fixer

llvm-svn: 297034

[clang-format] Make NamespaceEndCommentFixer add at most one comment

Summary:
Until now, NamespaceEndCommentFixer was adding missing comments for every run,
which results in multiple end comments fo

[clang-format] Make NamespaceEndCommentFixer add at most one comment

Summary:
Until now, NamespaceEndCommentFixer was adding missing comments for every run,
which results in multiple end comments for:
```
namespace {
int i;
int j;
}
#if A
int a = 1;
#else
int a = 2;
#endif
```
result before:

```
namespace {
int i;
int j;
}// namespace // namespace
#if A
int a = 1;
#else
int a = 2;
#endif
```
result after:
```
namespace {
int i;
int j;
}// namespace
#if A
int a = 1;
#else
int a = 2;
#endif
```

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D30659

llvm-svn: 297028

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[clang-format] Use number of unwrapped lines for short namespace

Summary:
This patch makes the namespace comment fixer use the number of unwrapped lines
that a namespace spans to detect it that name

[clang-format] Use number of unwrapped lines for short namespace

Summary:
This patch makes the namespace comment fixer use the number of unwrapped lines
that a namespace spans to detect it that namespace is short, thus not needing
end comments to be added.
This is needed to ensure clang-format is idempotent. Previously, a short namespace
was detected by the original source code lines. This has the effect of requiring two
runs for this example:
```
namespace { class A; }
```
after first run:
```
namespace {
class A;
}
```
after second run:
```
namespace {
class A;
} // namespace
```

Reviewers: djasper

Reviewed By: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D30528

llvm-svn: 296736

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[clang-format] Don't add namespace end comments for unbalanced right braces after namespace end

llvm-svn: 296638

[clang-format] Add a NamespaceEndCommentsFixer

Summary:
This patch adds a NamespaceEndCommentsFixer TokenAnalyzer for clang-format,
which fixes end namespace comments.
It currently supports insertin

[clang-format] Add a NamespaceEndCommentsFixer

Summary:
This patch adds a NamespaceEndCommentsFixer TokenAnalyzer for clang-format,
which fixes end namespace comments.
It currently supports inserting and updating existing wrong comments.

Example source:
```
namespace A {
int i;
}

namespace B {
int j;
} // namespace A
```

after formatting:
```
namespace A {
int i;
} // namespace A

namespace B {
int j;
} // namespace B
```

Reviewers: klimek, djasper

Reviewed By: djasper

Subscribers: klimek, mgorny

Differential Revision: https://reviews.llvm.org/D30269

llvm-svn: 296341

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