2089 Commits

Author SHA1 Message Date
Gabriel Smith
8ea64d5585 [clang-format] Fix short enums getting wrapped even when denied
Single-variant enums were still getting placed on a single line
even when AllowShortEnumsOnASingleLine was false. This fixes that
by checking that setting when looking to merge lines.

Differential Revision: https://reviews.llvm.org/D116188
2021-12-24 11:38:55 -08:00
Marek Kurdej
f66d602c3f [clang-format] Fix wrong indentation after trailing requires clause.
Fixes https://github.com/llvm/llvm-project/issues/52834.

Before this patch, clang-format would wrongly parse top-level entities (e.g. namespaces) and format:
```
template<int I>
constexpr void foo requires(I == 42) {}
namespace ns {
void foo() {}
}  // namespace ns
```
into:
``````
template<int I>
constexpr void foo requires(I == 42) {}
namespace ns {
  void foo() {}
}  // namespace ns
```
with configuration:
```
NamespaceIndentation: None
````

Reviewed By: MyDeveloperDay, HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D116183
2021-12-23 08:22:12 +01:00
Marek Kurdej
450ddddcb7 [clang-format] Remove unnecessary qualifications. NFC. 2021-12-21 17:53:42 +01:00
Marek Kurdej
36ea9861e3 [clang-format] Remove unnecessary qualifications. NFC. 2021-12-21 17:02:26 +01:00
Marek Kurdej
07fe451305 [clang-format] Fix SplitEmptyRecord affecting SplitEmptyFunction.
Fixes https://github.com/llvm/llvm-project/issues/50051.

Given the style:
```
BraceWrapping
  AfterFunction: true
 SplitEmptyFunction: true
 SplitEmptyRecord: false
...
```

The code that should be like:
```
void f(int aaaaaaaaaaaaaaaaaaaaaaaaaaaa,
       int bbbbbbbbbbbbbbbbbbbbbbbb)
{
}
```

gets the braces merged together:
```
void f(int aaaaaaaaaaaaaaaaaaaaaaaaaaaa,
       int bbbbbbbbbbbbbbbbbbbbbbbb)
{}
```

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D116049
2021-12-21 16:54:19 +01:00
Marek Kurdej
960712ccc7 [clang-format] Fix wrong indentation of namespace identifiers after a concept declaration.
Before this patch, the code:
```
template <class T>
concept a_concept = X<>;
namespace B {
struct b_struct {};
} // namespace B
```
with config:
```
NamespaceIndentation: None
```

was wrongly indented inside namespace B, giving:
```
template <class T>
concept a_concept = X<>;
namespace B {
  struct b_struct {};
} // namespace B
```

Fixes https://github.com/llvm/llvm-project/issues/50645

Reviewed By: MyDeveloperDay, owenpan

Differential Revision: https://reviews.llvm.org/D116008
2021-12-20 09:13:32 +01:00
Krasimir Georgiev
3a3fcd6a23 [clang-format] add regression tests for braced lists
Depends on https://reviews.llvm.org/D116000.

Added test cases from the comments on https://reviews.llvm.org/D114583.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D116001
2021-12-19 16:07:07 +01:00
Krasimir Georgiev
d96bf6ea46 Revert "[clang-format] Adjust braced list detection"
It appears that this regressed the formatting of initializer lists in some
cases, see comments on https://reviews.llvm.org/D114583. I'll follow-up
by adding regression tests for these.

This reverts commit c41b3b0fa0f4f70aad8deaf48bcd42a04385066c.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D116000
2021-12-19 16:04:42 +01:00
mydeveloperday
3362fa59ec [clang-format] extern with new line brace without indentation
https://github.com/llvm/llvm-project/issues/49804

Interaction between IndentExternBlock and AfterExternBlock means you cannot have AfterExternBlock = true and IndentExternBlock = NoIndent/Indent

This patch resolves that
```
BraceWrapping:
  AfterExternBlock: true
IndentExternBlock: AfterExternBlock
```
Fixes: #49804

Reviewed By: HazardyKnusperkeks, curdeius, owenpan

Differential Revision: https://reviews.llvm.org/D115879
2021-12-18 14:10:14 +00:00
mydeveloperday
936a67f089 [clang-format] Extra spaces surrounding arrow in templated member call in variable decl
https://github.com/llvm/llvm-project/issues/43196

Fixes #43196

-> is incorrectly interpreted as a TrailingReturnArrow if we've seen an auto

```
auto p = new A;
auto x = p -> foo<1>();
```

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D115903
2021-12-18 11:38:29 +00:00
mydeveloperday
62ead36547 [clang-format] Formatter does not handle c++11 string literal prefix with stringize #
https://github.com/llvm/llvm-project/issues/27740

Ensure
```
```
behave the same as
```
```

when formatted, ensure clang-format follows the conventions for `L` `u` `U` `u8`

https://docs.microsoft.com/en-us/cpp/cpp/string-and-character-literals-cpp?redirectedfrom=MSDN&view=msvc-170

Fixes #27740

Reviewed By: curdeius, owenpan

Differential Revision: https://reviews.llvm.org/D115938
2021-12-17 18:29:32 +00:00
mydeveloperday
2b671c3fe0 [clang-format] add support for branch attribute macros
https://github.com/llvm/llvm-project/issues/49184

clang-format doesn't handle the use of AttributeMacros where `[[unlikely]]` / `[[likely]]` could be used in `if` statements

This was not covered in the original commit {{D80144}}

Fixes #49184

Reviewed By: curdeius, owenpan

Differential Revision: https://reviews.llvm.org/D115865
2021-12-16 20:36:25 +00:00
Marek Kurdej
27818f01fe [clang-format] Fix tabs when using BreakBeforeTernaryOperators=false.
Fixes https://github.com/llvm/llvm-project/issues/52724.

This is rather a workaround than a correct fix. To properly fix it, we'd need to find a better way to tell when not to decrease the StartOfTokenColumn.

Reviewed By: MyDeveloperDay, owenpan

Differential Revision: https://reviews.llvm.org/D115803
2021-12-16 09:28:00 +01:00
mydeveloperday
a94aab12a4 [clang-format] put non-empty catch block on one line with AllowShortBlocksOnASingleLine: Empty
https://github.com/llvm/llvm-project/issues/52715

Fixes #52715

`AllowShortBlocksOnASingleLine` seems to never be checked for "Empty" as such if its used it will be considered "Always" as we only ever check `AllowShortBlocksOnASingleLine != Never`

This impacts C++ as well as C# hence the slightly duplicated test.

Reviewed By: curdeius, jbcoe

Differential Revision: https://reviews.llvm.org/D115794
2021-12-15 23:06:52 +00:00
mydeveloperday
2a73a1ac57 [clang-format] PR48916 PointerAlignment not working when using C++20 init-statement in for loop
https://bugs.llvm.org/show_bug.cgi?id=48916

Left and Right Alignment inside a loop is misaligned.

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D115050
2021-12-09 10:37:02 +00:00
Tan S. B
c41b3b0fa0 [clang-format] Adjust braced list detection
This avoids mishandling nested compound statements that are followed by another compound statement.

Fixes https://llvm.org/PR38314 and https://llvm.org/PR48305.

Differential Revision: https://reviews.llvm.org/D114583
2021-12-05 22:39:29 -08:00
mydeveloperday
57b95aed2a [clang-format] Add better support for co-routinues
Responding to a Discord call to help {D113977} and heavily inspired by the unlanded {D34225} add some support to help coroutinues from not being formatted from

```for co_await(auto elt : seq)```

to

```
for
co_await(auto elt : seq)
```

Because of the dominance of clang-format in the C++ community, I don't think we should make it the blocker that prevents users from embracing the newer parts of the standard because we butcher the layout of some of the new constucts.

Reviewed By: HazardyKnusperkeks, Quuxplusone, ChuanqiXu

Differential Revision: https://reviews.llvm.org/D114859
2021-12-02 08:06:43 +00:00
Manuel Klimek
d688b31628 Fix segfault in clang-format.
Fix bug where we'd read past the end of the tokens after merging _T
macro strings.
2021-12-01 11:57:41 +01:00
Manuel Klimek
5978842260 Fix clang-format bug when handling conflict markers.
Previously, clang-format would not correctly identify preprocessor
directives directly following a conflict marker, which would result in
violating the formatter's invariants.

The provided test fails in assert mode before this change.
2021-12-01 11:23:04 +01:00
mydeveloperday
814aabae37 [clang-format] regressed default behavior for operator parentheses
{D110833} regressed behavior of spaces before parentheses for operators, this revision reverts that so that operators are handled as they were before.

I think in hindsight it was a mistake to try and consume operator behaviour in with the function behaviour, I think Operators can be considered a special style. Its seems the code is getting confused as to if this is a function declaration or definition.

I think latterly we can consider adding an operator parentheses specific custom option but this should have been explicitly called out as it can impact projects.

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D114696
2021-11-29 14:27:16 +00:00
Jesses Gott
813d486cbc [clang-format] Extend AllowShortBlocksOnASingleLine for else blocks
Extend AllowShortBlocksOnASingleLine for else blocks. See https://bugs.llvm.org/show_bug.cgi?id=49722

Reviewed By: HazardyKnusperkeks, owenpan, MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D114320
2021-11-25 19:45:07 +00:00
mydeveloperday
c2fe2b5a63 [clang-format] [C++20] [Module] clang-format couldn't recognize partitions
https://bugs.llvm.org/show_bug.cgi?id=52517

clang-format is butchering modules, this could easily become a barrier to entry for modules given clang-formats wide spread use.

Prevent the following from adding spaces around the  `:`  (cf was considering the ':' as an InheritanceColon)

Reviewed By: HazardyKnusperkeks, owenpan, ChuanqiXu

Differential Revision: https://reviews.llvm.org/D114151
2021-11-25 11:51:21 +00:00
mydeveloperday
c94667a810 [clang-format] [PR52595] clang-format does not recognize rvalue references to array
https://bugs.llvm.org/show_bug.cgi?id=52595

missing space between `T(&&)` but not between `T (&` due to && being incorrectly thought of as `UnaryOperator`  rather than `PointerOrReference`

```
int operator()(T (&)[N]) { return 0; }
int operator()(T(&&)[N]) { return 1; }
```

Existing Unit tests are changed because actually I think they are originally incorrect, and are inconsistent with the (&) cases that are 4 or 5 lines above them.

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D114519
2021-11-25 11:05:46 +00:00
mydeveloperday
72e4f4a2a1 [clang-format] [PR47936] AfterControlStatement: MultiLine breaks AllowShortFunctionsOnASingleLine
https://bugs.llvm.org/show_bug.cgi?id=47936

Using the MultiLine setting for BraceWrapping.AfterControlStatement appears to disable AllowShortFunctionsOnASingleLine, even in cases without any control statements

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D114521
2021-11-25 08:30:31 +00:00
mydeveloperday
e7cb3283c8 [clang-format] [PR52527] can join * with /* to form an outside of comment error C4138
https://bugs.llvm.org/show_bug.cgi?id=52527

The follow patch ensures there is always a space between * and /* to prevent transforming
```
void foo(* /* comment */)(int bar);
```
into
```
void foo(*/* comment */)(int bar);
```

Differential Revision: https://reviews.llvm.org/D114142
2021-11-23 10:36:06 +00:00
mydeveloperday
fce3eed9f9 [clang-format][c++2b] support removal of the space between auto and {} in P0849R8
Looks like the work of {D113393} requires manual clang-formatting intervention.
Removal of the space between `auto` and `{}`

Reviewed By: HazardyKnusperkeks, Quuxplusone

Differential Revision: https://reviews.llvm.org/D113826
2021-11-14 14:13:44 +00:00
C. Rayroud
6facafe7da [clang-format] Refactor SpaceBeforeParens to add options
The coding style of some projects requires to have more control on space
before opening parentheses.
The goal is to add the support of clang-format to more projects.
For example adding a space only for function definitions or
declarations.
This revision adds SpaceBeforeParensOptions to configure each option
independently from one another.

Differentiel Revision: https://reviews.llvm.org/D110833
2021-11-09 21:51:45 +01:00
Josh Learn
3d209c76dd [clang-format] Constructor initializer lists format with pp directives
Currently constructor initializer lists sometimes format incorrectly
when there is a preprocessor directive in the middle of the list.
This patch fixes the issue when parsing the initilizer list by
ignoring the preprocessor directive when checking if a block is
part of an initializer list.

rdar://82554274

Reviewed By: MyDeveloperDay, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D109951
2021-10-02 13:23:43 +01:00
Fred Grim
a36227cb2b fixes bug #51926 where dangling comma caused overrun
bug 51926 identified an issue where a dangling comma caused the cell count to be to off by one

Differential Revision: https://reviews.llvm.org/D110481
2021-09-28 15:59:37 -07:00
mydeveloperday
a44ab17025 [clang-format] Add Left/Right Const fixer capability
Developers these days seem to argue over east vs west const like they used to argue over tabs vs whitespace or the various bracing style. These previous arguments were mainly eliminated with tools like `clang-format` that allowed those rules to become part of your style guide. Anyone who has been using clang-format in a large team over the last couple of years knows that we don't have those religious arguments any more, and code reviews are more productive.

https://www.youtube.com/watch?v=fv--IKZFVO8
https://mariusbancila.ro/blog/2018/11/23/join-the-east-const-revolution/
https://www.youtube.com/watch?v=z6s6bacI424

The purpose of this revision is to try to do the same for the East/West const discussion. Move the debate into the style guide and leave it there!

In addition to the new `ConstStyle: Right` or `ConstStyle: Left` there is an additional command-line argument `--const-style=left/right` which would allow an individual developer to switch the source back and forth to their own style for editing, and back to the committed style before commit. (you could imagine an IDE might offer such a switch)

The revision works by implementing a separate pass of the Annotated lines much like the SortIncludes and then create replacements for constant type declarations.

Differential Revision: https://reviews.llvm.org/D69764
2021-09-23 20:00:33 +01:00
owenca
3205dd3d59 [clang-format] Restrict the special handling for K&R C to C/C++
Commits 58494c856a15, f6bc614546e1, and 0fc27ef19670 added special
handlings for K&R C function definitions and caused some
JavaScript/TypeScript regressions which were addressed in D107267,
D108538, and D108620. This patch would have prevented these known
regressions and will fix any unknown ones.

Differential Revision: https://reviews.llvm.org/D109582
2021-09-10 15:51:35 -07:00
owenca
4b1fde8a2b [clang-format] Add PackConstructorInitializers backward compat test
Add backward compatibility tests for mapping the deprecated
ConstructorInitializerAllOnOneLineOrOnePerLine and
AllowAllConstructorInitializersOnNextLine to
PackConstructorInitializers.

Differential Revision: https://reviews.llvm.org/D108882
2021-08-29 13:47:11 -07:00
owenca
8a780a2f18 [clang-format] Group options that pack constructor initializers
Add a new option PackConstructorInitializers and deprecate the
related options ConstructorInitializerAllOnOneLineOrOnePerLine and
AllowAllConstructorInitializersOnNextLine. Below is the mapping:

PackConstructorInitializers  ConstructorInitializer... AllowAll...
        Never                            -                  -
        BinPack                        false                -
        CurrentLine                    true               false
        NextLine                       true               true

The option value Never fixes PR50549 by always placing each
constructor initializer on its own line.

Differential Revision: https://reviews.llvm.org/D108752
2021-08-27 06:27:46 -07:00
Owen
f6928cf455 [clang-format] Distinguish K&R C function definition and attribute
This is a follow-up to https://reviews.llvm.org/D107950 which
missed user-defined types in K&R C.

Differential Revision: https://reviews.llvm.org/D107961
2021-08-14 05:00:40 -07:00
David Spickett
98eb348eb3 Revert "[clang-format] Distinguish K&R C function definition and attribute"
This reverts commit de763c4037157e60551ba227ccd0ed02e109c317.

Causing test failures on the Arm/AArch64 quick bots:
https://lab.llvm.org/buildbot/#/builders/188/builds/2202
2021-08-13 16:25:32 +01:00
Owen
de763c4037 [clang-format] Distinguish K&R C function definition and attribute
This is a follow-up to https://reviews.llvm.org/D107950 which
missed user-defined types in K&R C.

Differential Revision: https://reviews.llvm.org/D107961
2021-08-13 05:28:19 -07:00
Krasimir Georgiev
45934922fa [clang-format] improve distinction of K&R function definitions vs attributes
After
9da70ab3d4
we saw a few regressions around trailing attribute definitions and in
typedefs (examples in the added test cases). There's some tension
distinguishing K&R definitions from attributes at the parser level,
where we have to decide if we need to put the type of the K&R definition
on a new unwrapped line before we have access to the rest of the line,
so we're scanning backwards and looking for a pattern like f(a, b). But
this type of pattern could also be an attribute macro, or the whole
declaration could be a typedef itself. I updated the code to check for a
typedef at the beginning of the line and to not consider raw identifiers
as possible first K&R declaration (but treated as an attribute macro
instead). This is not 100% correct heuristic, but I think it should be
reasonably good in practice, where we'll:
  * likely be in some very C-ish code when using K&R style (e.g., stuff
    that uses `struct name a;` instead of `name a;`
  * likely be in some very C++-ish code when using attributes
  * unlikely mix up the two in the same declaration.

Ideally, we should only decide to add the unwrapped line before the K&R
declaration after we've scanned the rest of the line an noticed the
variable declarations and the semicolon, but the way the parser is
organized I don't see a good way to do this in the current parser, which
only has good context for the previously visited tokens. I also tried
not emitting an unwrapped line there and trying to resolve the situation
later in the token annotator and the continuation indenter, and that
approach seems promising, but I couldn't make it to work without
messing up a bunch of other cases in unit tests.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D107950
2021-08-12 10:29:06 +02:00
Krasimir Georgiev
0fc27ef196 [clang-format] handle trailing comments in function definition detection
A follow-up to
f6bc614546
where we handle the case where the semicolon is followed by a trailing
comment.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D107907
2021-08-12 08:55:54 +02:00
Krasimir Georgiev
f6bc614546 [clan-format] detect function definitions more conservatively
https://reviews.llvm.org/D105964 updated the detection of function
definitions. It had the unfortunate effect to start marking object
definitions with attribute-like macros as function definitions.

This addresses this issue.

Reviewed By: owenpan

Differential Revision: https://reviews.llvm.org/D107269
2021-08-03 16:19:35 +02:00
Björn Schäpers
75f6a795ee [clang-format] Fix aligning with linebreaks #2
This amends c5243c63cda3c740d6e9c7e501f6518c21688da3 to fix formatting
continued function calls with BinPacking = false.

Differential Revision: https://reviews.llvm.org/D106773
2021-07-29 08:43:41 +02:00
Luna Kirkby
71616722d4 [clang-format] Correctly attach enum braces with ShortEnums disabled
Previously, with AllowShortEnumsOnASingleLine disabled, enums that would have otherwise fit on a single line would always put the opening brace on its own line.
This patch ensures that these enums will only put the brace on its own line if the existing attachment rules indicate that it should.

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D99840
2021-07-28 10:29:15 +02:00
owenca
9da70ab3d4 [clang-format] Break an unwrapped line at a K&R C parameter decl
Break an unwrapped line before the first parameter declaration in a
K&R C function definition.

This fixes PR51074.

Differential Revision: https://reviews.llvm.org/D106112
2021-07-19 13:30:38 -07:00
owenca
58494c856a [clang-format] Make BreakAfterReturnType work with K&R C functions
This fixes PR50999.

Differential Revision: https://reviews.llvm.org/D105964
2021-07-14 14:38:02 -07:00
Darwin Xu
e5a8f230c7 [clang-format] Fix the issue that empty lines being removed at the beginning of namespace
This is a bug fix of https://bugs.llvm.org/show_bug.cgi?id=50116

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D104044
2021-06-27 15:59:21 +01:00
mydeveloperday
37c2233097 [clang-format] [PR50702] Lamdba processing does not respect AfterClass and AfterNamespace
https://bugs.llvm.org/show_bug.cgi?id=50702

I believe {D44609} may be too aggressive with brace wrapping rules which doesn't always apply to Lamdbas

The introduction of BeforeLambdaBody and AllowShortLambdasOnASingleLine has impact on brace handling on other block types, which I suspect we didn't see before as people may not be using the BeforeLambdaBody  style

From what I can tell this can be seen by the unit test I change as its not honouring the orginal LLVM brace wrapping style for the `Fct()` function

I added a unit test from PR50702 and have removed some of the code (which has zero impact on the unit test, which kind of suggests its unnecessary), some additional attempt has been made to try and ensure we'll only break on what is actually a LamdbaLBrace

Reviewed By: HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D104222
2021-06-26 13:34:07 +01:00
mydeveloperday
ee3b2c47ce [clang-format] PR50525 doesn't handle AlignConsecutiveAssignments correctly in some situations
https://bugs.llvm.org/show_bug.cgi?id=50525

AlignConsecutiveAssignments/Declarations cause incorrect alignment in the presence of a DesignatedInitializerPeriod (https://gcc.gnu.org/onlinedocs/gcc/Designated-Inits.html)

```
static NTSTATUS stg(PLW_STREAM Stream, int identity)
{
     NTSTATUS             status;
     BYTE                 payload[256] = {'l', 'h', 'o', 't', 's', 'e'};
     struct dm_rpc_header header       = {.drh_magic        = DRH_MAGIC,
                                    .drh_op_code      = RPC_OP_ECHO,
                                    .drh_payload_size = sizeof(payload),
                                    .drh_body_size    = sizeof(payload),
                                    .drh_request_id   = 1};
     header.drh_version                = identity;
```

This fix addresses that by ensuring the period isn't ignored

Reviewed By: HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D104900
2021-06-26 13:29:16 +01:00
Seraphime Kirkovski
a08fa8a508 [Clang-Format] Add ReferenceAlignment directive
This introduces ReferenceAlignment style option modeled around
PointerAlignment.
Style implementors can specify Left, Right, Middle or Pointer to
follow whatever the PointerAlignment option specifies.

Differential Revision: https://reviews.llvm.org/D104096
2021-06-24 22:27:45 +02:00
Vitali Lovich
be9a87fe9b [clang-format] Add IfMacros option
https://bugs.llvm.org/show_bug.cgi?id=49354

Differential Revision: https://reviews.llvm.org/D102730
2021-06-23 08:51:53 -07:00
owenca
ca7f471585 [clang-format] Fix a bug that indents else-comment-if incorrectly
PR50809

Differential Revision: https://reviews.llvm.org/D104774
2021-06-23 04:57:45 -07:00
Vitali Lovich
64cf5eba06 [clang-format] Add new LambdaBodyIndentation option
Currently the lambda body indents relative to where the lambda signature is located. This instead lets the user
choose to align the lambda body relative to the parent scope that contains the lambda declaration. Thus:

someFunction([] {
  lambdaBody();
});

will always have the same indentation of the body even when the lambda signature goes on a new line:

someFunction(
    [] {
  lambdaBody();
});

whereas before lambdaBody would be indented 6 spaces.

Differential Revision: https://reviews.llvm.org/D102706
2021-06-22 21:46:16 +02:00