Commit Graph

1776 Commits

Author SHA1 Message Date
Sam McCall acc3ce945c [Format] Don't derive pointers right based on space before method ref-qualifiers
The second space in `void foo() &` is always produced by clang-format,
and isn't evidence of any particular style.

Before this patch, it was considered evidence of PAS_Right, because
there is a space before a pointerlike ampersand.

This caused the following code to have "unstable" pointer alignment:
  void a() &;
  void b() &;
  int *x;
PAS_Left, Derive=false would produce 'int* x' with other lines unchanged.
But subsequent formatting with Derive=true would produce 'int *x' again.

Differential Revision: https://reviews.llvm.org/D118921
2022-02-04 12:13:58 +01:00
mydeveloperday 23fc20e06c [clang-format] regression from clang-format v13
https://github.com/llvm/llvm-project/issues/53567

The following source

```
namespace A {

template <int N> struct Foo<char[N]> {
  void foo() { std::cout << "Bar"; }
}; // namespace A
```

is incorrectly formatted as:

```
namespace A {

template <int N> struct Foo<char[N]>{void foo(){std::cout << "Bar";
}
}
; // namespace A
```

This looks to be caused by 5c2e7c9ca0

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D118911
2022-02-03 18:37:43 +00:00
Marek Kurdej ca0d97072e [clang-format] Avoid merging macro definitions.
Fixes https://github.com/llvm/llvm-project/issues/42087.

Reviewed By: HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D118879
2022-02-03 18:54:46 +01:00
Marek Kurdej 529aa4b011 [clang-format] Avoid adding space after the name of a function-like macro when the name is a keyword.
Fixes https://github.com/llvm/llvm-project/issues/31086.

Before the code:
```
#define if(x)
```

was erroneously formatted to:
```
#define if (x)
```

Reviewed By: HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D118844
2022-02-03 18:45:51 +01:00
Owen Pan eaef54f213 [clang-format] Revert a feature in RemoveBracesLLVM
Revert the handling of a single-statement block that gets wrapped.

See issue #53543.

Differential Revision: https://reviews.llvm.org/D118873
2022-02-03 02:56:09 -08:00
Marek Kurdej bc40b76b5b [clang-format] Correctly parse C99 digraphs: "<:", ":>", "<%", "%>", "%:", "%:%:".
Fixes https://github.com/llvm/llvm-project/issues/31592.

This commits enables lexing of digraphs in C++11 and onwards.
Enabling them in C++03 is error-prone, as it would unconditionally treat sequences like "<:" as digraphs, even if they are followed by a single colon, e.g. "<::" would be treated as "[:" instead of "<" followed by "::". Lexing in C++11 doesn't have this problem as it looks ahead the following token.
The relevant excerpt from Lexer::LexTokenInternal:
```
        // C++0x [lex.pptoken]p3:
        //  Otherwise, if the next three characters are <:: and the subsequent
        //  character is neither : nor >, the < is treated as a preprocessor
        //  token by itself and not as the first character of the alternative
        //  token <:.
```

Also, note that both clang and gcc turn on digraphs by default (-fdigraphs), so clang-format should match this behaviour.

Reviewed By: MyDeveloperDay, HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D118706
2022-02-02 10:25:24 +01:00
Marek Kurdej fd33cca762 [clang-format] Fix AlignConsecutiveAssignments breaking lambda formatting.
Fixes https://github.com/llvm/llvm-project/issues/52772.

This patch fixes the formatting of the code:
```
auto aaaaaaaaaaaaaaaaaaaaa = {};
auto b                     = g([] {
  return;
});
```
which should be left as is, but before this patch was formatted to:
```
auto aaaaaaaaaaaaaaaaaaaaa = {};
auto b                     = g([] {
  return;
                    });
```

Reviewed By: MyDeveloperDay, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D115972
2022-02-01 09:17:59 +01:00
Marek Kurdej 438f0e1f00 [clang-format] Use EXPECT_EQ instead of setting style to a default value. NFC. 2022-01-31 09:06:00 +01:00
Philip Sigillito d1aed486ef [clang-format] Handle C variables with name that matches c++ access specifier
Reviewed By: MyDeveloperDay, curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D117416
2022-01-30 20:56:50 +01:00
Marek Kurdej 36622c4e1a [clang-format] Fix AllowShortFunctionsOnASingleLine: InlineOnly with wrapping after record.
Fixes https://github.com/llvm/llvm-project/issues/53430.

Initially, I had a quick and dirty approach, but it led to a myriad of special cases handling comments (that may add unwrapped lines).
So I added TT_RecordLBrace type annotations and it seems like a much nicer solution.
I think that in the future it will allow us to clean up some convoluted code that detects records.

Reviewed By: MyDeveloperDay, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D118337
2022-01-27 18:06:31 +01:00
Marek Kurdej 93948c5299 [clang-format] Correctly format lambdas with variadic template parameters.
Fixes https://github.com/llvm/llvm-project/issues/53405.

Reviewed By: MyDeveloperDay, owenpan

Differential Revision: https://reviews.llvm.org/D118220
2022-01-26 16:10:52 +01:00
Marek Kurdej 72e29caf03 [clang-format] Fix regression in parsing pointers to arrays.
Fixes https://github.com/llvm/llvm-project/issues/53293.

After commit 5c2e7c9, the code:
```
template <> struct S : Template<int (*)[]> {};
```
was misformatted as:
```
template <> struct S : Template<int (*)[]>{};
```

Reviewed By: MyDeveloperDay, HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D118106
2022-01-26 09:27:38 +01:00
Marek Kurdej 50999e82e8 [clang-format] Space between attribute closing parenthesis and qualified type colon.
Fixes https://github.com/llvm/llvm-project/issues/35711.

Reviewed By: MyDeveloperDay, HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D117894
2022-01-24 18:09:20 +01:00
Marek Kurdej 794b1eebe7 [clang-format] Add tests for aligning `operator=` with `=delete`. NFC.
Also, add test case from https://github.com/llvm/llvm-project/issues/33044.
This was actually fixed in 480a1fab72, but there were no tests for delete.
2022-01-20 09:39:08 +01:00
Jino Park 560eb2277b [clang-format] Fix bug in parsing `operator<` with template
Fixes https://github.com/llvm/llvm-project/issues/44601.

This patch handles a bug when parsing a below example code :

```
template <class> class S;

template <class T> bool operator<(S<T> const &x, S<T> const &y) {
  return x.i < y.i;
}

template <class T> class S {
  int i = 42;
  friend bool operator< <>(S const &, S const &);
};

int main() { return S<int>{} < S<int>{}; }
```
which parse `< <>` as `<< >`, not `< <>` in terms of tokens as discussed in discord.

1. Add a condition in `tryMergeLessLess()` considering `operator` keyword and `>`
2. Force to leave a whitespace between `tok::less` and a template opener
3. Add unit test

Reviewed By: MyDeveloperDay, curdeius

Differential Revision: https://reviews.llvm.org/D117398
2022-01-20 08:59:04 +01:00
Elliott Maguire 480a1fab72 [clang-format] Fix incorrect alignment of operator= overloads.
Fixes https://github.com/llvm/llvm-project/issues/31568.

Added a check for operator keyword tokens.

Reviewed By: MyDeveloperDay, curdeius, owenpan, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D117421
2022-01-19 10:18:47 +01:00
Marek Kurdej 1e512f022a [clang-format] Treat ForEachMacros as loops
TT_ForEachMacro should be considered in rules AllowShortBlocksOnASingleLine
and AllowShortLoopsOnASingleLine.
Fixes https://github.com/llvm/llvm-project/issues/45432.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D94955
2022-01-17 17:11:06 +01:00
Cameron Mulhern 966f24e5a6 [clang-format] Add a BlockIndent option to AlignAfterOpenBracket
This style is similar to AlwaysBreak, but places closing brackets on new lines.

For example, if you have a multiline parameter list, clang-format currently only supports breaking per-parameter, but places the closing bracket on the line of the last parameter.

Function(
    param1,
    param2,
    param3);

A style supported by other code styling tools (e.g. rustfmt) is to allow the closing brackets to be placed on their own line, aiding the user in being able to quickly infer the bounds of the block of code.

Function(
    param1,
    param2,
    param3
);

For prior work on a similar feature, see: https://reviews.llvm.org/D33029.

Note: This currently only supports block indentation for closing parentheses.

Differential Revision: https://reviews.llvm.org/D109557
2022-01-17 09:03:23 +01:00
Owen Pan 533fbae8d8 [clang-format] Add experimental option to remove LLVM braces
See the style examples at:
https://llvm.org/docs/CodingStandards.html#don-t-use-braces-on-simple-single-statement-bodies-of-if-else-loop-statements

Differential Revision: https://reviews.llvm.org/D116316
2022-01-14 15:10:17 -08:00
Marek Kurdej 7af11989be [clang-format] Fix short functions being considered as inline inside an indented namespace.
Fixes https://github.com/llvm/llvm-project/issues/24784.

With config:
```
AllowShortFunctionsOnASingleLine: Inline
NamespaceIndentation: All
```

The code:
```
namespace Test
{
    void f()
    {
        return;
    }
}
```
was incorrectly formatted to:
```
namespace Test
{
    void f() { return; }
}
```

since the function `f` was considered being inside a class/struct/record.
That's because the check was simplistic and only checked for a non-zero indentation level of the line starting `f`.

Reviewed By: MyDeveloperDay, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D117142
2022-01-14 21:57:02 +01:00
Marek Kurdej 6ea3d9efc5 [clang-format] Fix CompactNamespaces corner case when AllowShortLambdasOnASingleLine/BraceWrapping.BeforeLambdaBody are set
In clang-format 12, `CompactNamespaces` misformatted the code when `AllowShortLambdasOnASingleLine` is set to false and `BraceWrapping.BeforeLambdaBody` is true.

Input:
```
namespace out {
namespace in {
}
} // namespace out::in
```

Expected output:
```
namespace out { namespace in {
}} // namespace out::in
```

Output from v12:
```
namespace out {
namespace in {
}
} // namespace out::in
```

Config triggering the issue:
```
---
AllowShortLambdasOnASingleLine: None
BraceWrapping:
  BeforeLambdaBody :    true
BreakBeforeBraces: Custom
CompactNamespaces: true
...
```

Seems there's a corner case when `AllowShortLambdasOnASingleLine` is false, and `BraceWrapping.BeforeLambdaBody` is true, that causes CompactNamespaces to stop working.
The cause was a misannotation of `{` opening brace after `namespace` as a lambda opening brace.
The regression was probably introduced with [this commit](fa0118e6e5).

Originally contributed by Ahmed Mahdy (@aybassiouny). Thank you!

Reviewed By: Wawha, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D99031
2022-01-14 21:47:16 +01:00
Marek Kurdej 6a4957cbdf [clang-format] Add missing test for loops formatting. NFC.
The case with an inner while loop wasn't tested before. Same for outer loop with a ForeachMacro.
2022-01-14 14:43:15 +01:00
Marek Kurdej cd3ab156a7 [clang-format] Fix typos in test. NFC. 2022-01-14 13:24:16 +01:00
Marek Kurdej 3cf86c3611 Revert unrelated change from: [clang-format] Fix break being added to macro define with ColumnLimit: 0 2022-01-14 08:43:59 +01:00
Armen Khachkinaev 47a9eb2117 [clang-format] Fix break being added to macro define with ColumnLimit: 0
Fix for #[[ https://github.com/llvm/llvm-project/issues/49164 | 49164 ]] issue.

Reviewed By: MyDeveloperDay, HazardyKnusperkeks, curdeius, owenpan

Differential Revision: https://reviews.llvm.org/D116859
2022-01-14 08:42:22 +01:00
mydeveloperday 7ee4236789 [clang-format] clang-format eats space in front of attributes for operator delete
https://github.com/llvm/llvm-project/issues/27037

Sorry its taken so long to get to this issue! (got it before it hit its 6th birthday!)

```
void operator delete(void *foo)ATTRIB;
```

(void *foo) is incorrectly determined to be a C-Style Cast resulting in the space being removed after the ) and before the attrib, due to the detection of

```
delete (A* )a;
```

The following was previously unaffected

```
void operator new(void *foo) ATTRIB;
```

Fixes #27037

Reviewed By: curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D116920
2022-01-13 07:57:45 +00:00
mydeveloperday 5c2e7c9ca0 [clang-format] Ensure we can correctly parse lambda in the template argument list
https://github.com/llvm/llvm-project/issues/46505

The presence of a lambda in an argument template list ignored the [] as a lambda at all, this caused the contents of the <> to be incorrectly analyzed.

```
struct Y : X < [] {
  return 0;
} > {};
```
Fixes: #46505

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D116806
2022-01-10 08:29:35 +00:00
mydeveloperday 49d311874e [clang-format] Missing space after cast in a macro
https://github.com/llvm/llvm-project/issues/52979

Though SpaceAfterCStyleCast is set to true, clang-format 13 does not add a space after (void *) here:

```
```

This patch addresses that

Fixes: #52979

Reviewed By: curdeius, HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D116592
2022-01-06 08:07:03 +00:00
Marek Kurdej 5109737c92 [clang-format] Fix indentation for array variables with alignment of consecutive assignments and declarations.
Fixes https://github.com/llvm/llvm-project/issues/52914.

Reviewed By: HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D116527
2022-01-05 13:52:45 +01:00
Rajat Bajpai da6b0d0b76 [clang-format] Add an option to add a space between operator overloading and opening parentheses
This change adds an option AfterOverloadedOperator in SpaceBeforeParensOptions to add a space between overloaded operator and opening parentheses in clang-format.

Reviewed By: MyDeveloperDay, curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D116283
2022-01-04 17:23:23 +01:00
Marek Kurdej e2b6e21f19 [clang-format] Fix incorrect formatting of lambdas inside brace initialisation
Fixes https://github.com/llvm/llvm-project/issues/27146.
Fixes https://github.com/llvm/llvm-project/issues/52943.

Before:

```
namespace ns {

void foo() {
  std::variant<int, double> v;
  std::visit(overloaded{[](auto &&) -> int (*)[] { return nullptr; }}, v);
}

} // namespace ns

int break_me() {
  int x = 42;
  return int{[x = x]() {
    return x;
  }()};
}
```

got formatted as:
```
namespace ns {

void foo() {
  std::variant<int, double> v;
  std::visit(overloaded{[](auto &&) -> int (*)[] { return nullptr;
}
} // namespace ns
, v);
}

} // namespace ns

int break_me() {
  int x = 42;
  return int{[x = x](){return x;
}
()
}
;
}
```

Reviewed By: HazardyKnusperkeks, owenpan

Differential Revision: https://reviews.llvm.org/D116553
2022-01-04 08:28:12 +01:00
G. Pery cfe3180742 [clang-format] Add penalty for breaking after '('
My team has a vendetta against lines ending with an open parenthesis, thought it might be useful for others too 😊

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D116170
2022-01-03 21:06:34 +01:00
Michael Zimmermann 7972b2e422 [clang-format] respect AfterEnum for enums
There is some similar looking code in `TokenAnnotator.cpp` but given that I've
never worked on clang-format before I don't know what the purpose of that code
is and how it's related to `UnwrappedLineParser.cpp`.

Either way, it fixes clang-format with `BraceWrapping.AfterEnum=true` and
`AllowShortEnumsOnASingleLine=false` to behave like the documentation says.

Before this patch:
```
enum
{
  A,
  B
} myEnum;
```

After this patch:
```
enum {
  A,
  B
} myEnum;
```

According to the unittests which I had to modify this would change the LLVM
style. Please evaluate if you want to change the defaults or if you consider
the current style a bug.

Reviewed By: curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D106349
2022-01-03 20:01:10 +01:00
mydeveloperday cd2b050fa4 [clang-format] spacesRequiredBetween is not honouring clang-format off/on
https://github.com/llvm/llvm-project/issues/52881

It seems that clang-format off/on is not being honoured in regard to adding spaces.

My understanding of clang-format off/on is that it marks the token as finalized based on whether formatting is currently enabled or disabled.

This was causing a space to be added between the `<` and `<<`  in the Cuda kernel `foo<<<1, 1>>>();`

This if doesn't solve this actual issue but ensure that clang-format is at least honoured.

Reviewed By: curdeius, owenpan

Differential Revision: https://reviews.llvm.org/D116494
2022-01-03 11:19:02 +00:00
Zhao Wei Liew b9e173fcd4 [clang-format] Add option to explicitly specify a config file
This diff extends the -style=file option to allow a config file to be specified explicitly. This is useful (for instance) when adding IDE commands to reformat code to a personal style.

Usage: `clang-format -style=file:<path/to/config/file> ...`

Reviewed By: HazardyKnusperkeks, curdeius, MyDeveloperDay, zwliew

Differential Revision: https://reviews.llvm.org/D72326
2022-01-03 11:43:25 +01:00
Zhao Wei Liew 0090cd4e7a [clang-format] Support inheriting from more than 1 parents in the fallback case
Currently, we are unable to inherit from a chain of parent configs where the outermost parent config has `BasedOnStyle: InheritParentConfig` set. This patch adds a test case for this scenario, and adds support for it.

To illustrate, suppose we have the following directory structure:
```
- e/
  |- .clang-format (BasedOnStyle: InheritParentConfig) <-- outermost config
  |- sub/
    |- .clang-format (BasedOnStyle: InheritParentConfig)
    |- sub/
      |- .clang-format (BasedOnStyle: InheritParentConfig)
      |- code.cpp
```
Now consider what happens when we run `clang-format --style=file /e/sub/sub/code.cpp`.

Without this patch, on a release build, only the innermost config will be applied. On a debug build, clang-format crashes due to an assertion failure.
With this patch, clang-format behaves as we'd expect, applying all 3 configs.

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D116371
2022-01-03 11:36:00 +01:00
Marek Kurdej ab0bfbdaaa [clang-format] Use get*StyleWithColumns helper. NFC. 2022-01-03 09:45:33 +01:00
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 c41b3b0fa0.

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 58494c856a, f6bc614546, and 0fc27ef196 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 de763c4037.

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 c5243c63cd 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
Yilong Guo 873308fd8c [Format] Fix incorrect pointer/reference detection
https://llvm.org/PR50568

When an overloaded operator is called, its argument must be an
expression.

Before:
    void f() { a.operator()(a *a); }

After:
    void f() { a.operator()(a * a); }

Reviewed By: HazardyKnusperkeks, curdeius, MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D103678
2021-06-17 09:34:06 +01:00
Krasimir Georgiev 54bd95cd96 [clang-format] distinguish function type casts after 21c18d5a04
21c18d5a04
improved the detection of multiplication in function call argument lists,
but unintentionally regressed the handling of function type casts (there
were no tests covering those).
This patch improves the detection of function type casts and adds a few tests.

Reviewed By: HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D104209
2021-06-15 10:28:36 +02:00
Fred Grim 673c5ba584 [clang-format] Adds a formatter for aligning arrays of structs
This adds a new formatter to arrange array of struct initializers into
neat columns.

Differential Revision: https://reviews.llvm.org/D101868
2021-06-13 21:14:37 +02:00
Yilong Guo 21c18d5a04 [Format] Fix incorrect pointer detection
https://llvm.org/PR50429

Before:
    void f() { f(float(1), a *a); }

After:
    void f() { f(float(1), a * a); }

Signed-off-by: Yilong Guo <yilong.guo@intel.com>

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D103589
2021-06-04 09:39:23 +02:00
Gerhard Gappmeier 6f605b8d0b [clang-format] Add PPIndentWidth option
This allows to set a different indent width for preprocessor statements.

Example:

 #ifdef __linux_
 # define FOO
 #endif

int main(void)
{
    return 0;
}

Differential Revision: https://reviews.llvm.org/D103286
2021-06-03 17:55:11 +02:00
Gerhard Gappmeier 3e333cc82e [clang-format] Fix PointerAlignmentRight with AlignConsecutiveDeclarations
This re-applies the old patch D27651, which was never landed, into the
latest "main" branch, without understanding the code. I just applied
the changes "mechanically" and made it compiling again.

This makes the right pointer alignment working as expected.
Fixes https://llvm.org/PR27353

For instance

const char* const* v1;
float const* v2;
SomeVeryLongType const& v3;

was formatted as

const char *const *     v1;
float const *           v2;
SomeVeryLongType const &v3;

This patch keep the *s or &s aligned to the right, next to their variable.
The above example is now formatted as

const char *const      *v1;
float const            *v2;
SomeVeryLongType const &v3;

It is a pity that this still does not work with clang-format in 2021,
even though there was a fix available in 2016. IMHO right pointer alignment
is the default case in C, because syntactically the pointer belongs to the
variable.

See

int* a, b, c; // wrong, just the 1st variable is a pointer

vs.

int *a, *b, *c; // right

Prominent example is the Linux kernel coding style.

Some styles argue the left pointer alignment is better and declaration
lists as shown above should be avoided. That's ok, as different projects
can use different styles, but this important style should work too.

I hope that somebody that has a better understanding about the code,
can take over this patch and land it into main.

For now I must maintain this fork to make it working for our projects.

Cheers,
Gerhard.

Differential Revision: https://reviews.llvm.org/D103245
2021-06-03 17:55:11 +02:00
Zhihao Yuan 09b75f480d
[clang-format] New BreakInheritanceList style AfterComma
This inheritance list style has been widely adopted by Symantec,
a division of Broadcom Inc. It breaks after the commas that
separate the base-specifiers:

    class Derived : public Base1,
                    private Base2
    {
    };

Differential Revision: https://reviews.llvm.org/D103204
2021-05-28 18:24:00 -05:00
mydeveloperday eae445f65d [clang-format] PR50326 AlignAfterOpenBracket AlwaysBreak does not keep to the ColumnLimit
https://bugs.llvm.org/show_bug.cgi?id=50326

{D93626} caused a regression in terms of formatting a function ptr, incorrectly thinking it was a C-Style cast.

This cased a formatter regression between clang-format-11 and clang-format-12

```
void bar()
{
    size_t foo = function(Foooo, Barrrrr, Foooo, Barrrr, FoooooooooLooooong);

    size_t foo = function(
        Foooo, Barrrrr, Foooo, Barrrr, FoooooooooLooooong, BarrrrrrrrrrrrLong,
        FoooooooooLooooong);

    size_t foo = (*(function))(Foooo, Barrrrr, Foooo, FoooooooooLooooong);

    size_t foo = (*(
        function))(Foooo, Barrrrr, Foooo, Barrrr, FoooooooooLooooong,
        BarrrrrrrrrrrrLong, FoooooooooLooooong);
}
```

became

```
void bar()
{
    size_t foo1 = function(Foooo, Barrrrr, Foooo, Barrrr, FoooooooooLooooong);

    size_t foo2 = function(
        Foooo, Barrrrr, Foooo, Barrrr, FoooooooooLooooong, BarrrrrrrrrrrrLong,
        FoooooooooLooooong);

    size_t foo3 = (*(function))(Foooo, Barrrrr, Foooo, FoooooooooLooooong);

    size_t foo4 = (*(
        function))(Foooo, Barrrrr, Foooo, Barrrr, FoooooooooLooooong, BarrrrrrrrrrrrLong, FoooooooooLooooong);
}
```

This fixes this issue by simplify the clause to be specific about what is wanted rather than what is not.

Reviewed By: curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D102392
2021-05-15 11:29:56 +01:00
Benjamin Kramer 4dd546131a Bump googletest to 1.8.1
We've accumulated a scary amount of local patches to this directory. I
tried to merge them all, but if your favorite change is missing please
reapply it manually (and send it upstream).
2021-05-14 17:20:06 +02:00
Luis Penagos 8fa56f7ede [clang-format] Prevent extraneous space insertion in bitshift operators
This serves to augment the improvements made in https://reviews.llvm.org/D86581. It prevents clang-format from interpreting bitshift operators as template arguments in certain circumstances. This is an attempt at fixing https://bugs.llvm.org/show_bug.cgi?id=49868

Reviewed By: MyDeveloperDay, krasimir

Differential Revision: https://reviews.llvm.org/D100778
2021-05-04 12:28:49 +02:00
Marek Kurdej 8d93d7ffed [clang-format] Add options to AllowShortIfStatementsOnASingleLine to apply to "else if" and "else".
This fixes the bug http://llvm.org/pr50019.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D100727
2021-05-03 18:11:25 +02:00
Marek Kurdej 9363aa90bf [clang-format] Add `SpacesInAngles: Leave` option to keep spacing inside angle brackets as is.
A need for such an option came up in a few libc++ reviews. That's because libc++ has both code in C++03 and newer standards.
Currently, it uses `Standard: C++03` setting for clang-format, but this breaks e.g. u8"string" literals.
Also, angle brackets are the only place where C++03-specific formatting needs to be applied.

Reviewed By: MyDeveloperDay, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D101344
2021-04-29 08:58:50 +02:00
Marek Kurdej 3feb84a36f [clang-format] Merge SpacesInAngles tests. NFC. 2021-04-27 09:32:09 +02:00
Krasimir Georgiev 5987d7c59d [clang-format] fix indent in alignChainedConditionals
Clang-format was indenting the lines following the `?` in the added test
case by +5 instead of +4. This only happens in a very specific
situation, where the `?` is followed by a multiline block comment, as in
the example. This fix addresses this without regressing any of the
existing tests.

Differential Revision: https://reviews.llvm.org/D101033
2021-04-26 11:06:29 +02:00
Max Sagebaum fd4e08aa8f [clang-format] Inconsistent behavior regarding line break before access modifier
Fixes https://llvm.org/PR41870.

Checks for newlines in option Style.EmptyLineBeforeAccessModifier are now based on the formatted new lines and not on the new lines in the file.

Reviewed By: HazardyKnusperkeks, curdeius

Differential Revision: https://reviews.llvm.org/D99503
2021-04-16 10:39:13 +02:00
Max Sagebaum dda978eef8 [clang-format] Option for empty lines after an access modifier.
The current logic for access modifiers in classes ignores the option 'MaxEmptyLinesToKeep=1'. It is therefore impossible to have a coding style that requests one empty line after an access modifier. The patch allows the user to configure how many empty lines clang-format should add after an access modifier. This will remove lines if there are to many and will add them if there are missing.

Reviewed By: MyDeveloperDay, curdeius

Differential Revision: https://reviews.llvm.org/D98237
2021-04-15 21:03:07 +02:00
Nico Rieck bc4b0fc53e [clang-format] Fix east const pointer alignment of operators
This patch fixes left pointer alignment after pointer qualifiers of
operators. Currently "operator void const*()" is formatted with a space between
const and pointer despite setting PointerAlignment to Left.

AFAICS this has been broken since clang-format 10.

Reviewed By: MyDeveloperDay, curdeius

Differential Revision: https://reviews.llvm.org/D99458
2021-03-30 17:18:32 +02:00
Björn Schäpers c5243c63cd [clang-format] Fix aligning with linebreaks
Breaking a string literal or a function calls arguments with
AlignConsecutiveDeclarations or AlignConsecutiveAssignments did misalign
the continued line. E.g.:

void foo() {
  int myVar = 5;
  double x  = 3.14;
  auto str  = "Hello"
            "World";
}

or

void foo() {
  int    myVar = 5;
  double x = 3.14;
  auto   str = "Hello"
             "World";
}

Differential Revision: https://reviews.llvm.org/D98214
2021-03-28 16:26:27 +02:00
Tim Wojtulewicz f7f9f94b2e [clang-format] Rework Whitesmiths mode to use line-level values in UnwrappedLineParser
This commit removes the old way of handling Whitesmiths mode in favor of just setting the
levels during parsing and letting the formatter handle it from there. It requires a bit of
special-casing during the parsing, but ends up a bit cleaner than before. It also removes
some of switch/case unit tests that don't really make much sense when dealing with
Whitesmiths.

Differential Revision: https://reviews.llvm.org/D94500
2021-03-05 21:42:46 +01:00
Björn Schäpers 7b02794f0a [clang-format] Rename case sorting
As discussed in D95017 the names case sensitive and insensitive should
be switched.

This amends a8105b3766.

Differential Revision: https://reviews.llvm.org/D97927
2021-03-05 21:42:45 +01:00
Björn Schäpers 418b4a7b31 [clang-format] Respect spaces in line comment section...
... without an active column limit.

Before line comments were not touched at all with ColumnLimit == 0.

Differential Revision: https://reviews.llvm.org/D96896
2021-03-01 21:28:14 +01:00
Darwin Xu e0b1df924a [clang-format] Fix AlignConsecutiveDeclarations handling of pointers
This is a bug fix of https://bugs.llvm.org/show_bug.cgi?id=49175

The expected code format:

unsigned int*       a;
int*                b;
unsigned int Const* c;

The actual code after formatting (without this patch):

unsigned int* a;
int*          b;
unsigned int Const* c;

Differential Revision: https://reviews.llvm.org/D97137
2021-02-27 22:56:36 +01:00
Jakub Budiský 2a42c759ae [clang-format] [PR19056] Add support for access modifiers indentation
Adds support for coding styles that make a separate indentation level for access modifiers, such as Code::Blocks or QtCreator.

The new option, `IndentAccessModifiers`, if enabled, forces the content inside classes, structs and unions (“records”) to be indented twice while removing a level for access modifiers. The value of `AccessModifierOffset` is disregarded in this case, aiming towards an ease of use.

======
The PR (https://bugs.llvm.org/show_bug.cgi?id=19056) had an implementation attempt by @MyDeveloperDay already (https://reviews.llvm.org/D60225) but I've decided to start from scratch. They differ in functionality, chosen approaches, and even the option name. The code tries to re-use the existing functionality to achieve this behavior, limiting possibility of breaking something else.

Reviewed By: MyDeveloperDay, curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D94661
2021-02-26 09:17:07 +01:00
Björn Schäpers 25f753c51e [clang-format] Add possibility to be based on parent directory
This allows the define BasedOnStyle: InheritParentConfig and then
clang-format looks into the parent directories for their
.clang-format and takes that as a basis.

Differential Revision: https://reviews.llvm.org/D93844
2021-02-14 19:56:10 +01:00
Kent Sommer a8105b3766 [clang-format] Add case aware include sorting.
Adds an option to [clang-format] which sorts headers in an alphabetical manner using case only for tie-breakers. The options is off by default in favor of the current ASCIIbetical sorting style.

Reviewed By: MyDeveloperDay, curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D95017
2021-02-02 15:12:27 +01:00
Björn Schäpers 772eb24e00 [clang-format] Add option to control the spaces in a line comment
Differential Revision: https://reviews.llvm.org/D92257
2021-02-01 22:48:50 +01:00
Björn Schäpers 4ad41f1daf Revert "[clang-format] Add option to control the spaces in a line comment"
This reverts commit 078f30e04d.
2021-01-29 09:30:52 +01:00
Björn Schäpers 078f30e04d [clang-format] Add option to control the spaces in a line comment
Differential Revision: https://reviews.llvm.org/D92257
2021-01-29 07:00:08 +01:00
Marek Kurdej e3713f156b [clang-format] Avoid considering include directive as a template closer.
This fixes a bug [[ http://llvm.org/PR48891 | PR48891 ]] introduced in D93839 where:
```
#include <stdint.h>
namespace rep {}
```
got formatted as
```
#include <stdint.h>
namespace rep {
}
```

Reviewed By: MyDeveloperDay, leonardchan

Differential Revision: https://reviews.llvm.org/D95479
2021-01-27 09:15:30 +01:00
Marek Kurdej 6d5c1cd2ab Revert "[clang-format] add case aware include sorting"
This reverts commit 3395a336b0 as there was a post-merge doubt about option naming and type.
2021-01-26 11:58:56 +01:00
Albertas Vyšniauskas 60bf5826cf [clang-format] PR16518 Add flag to suppress empty line insertion before access modifier
Add new option called InsertEmptyLineBeforeAccessModifier. Empty line
before access modifier is inerted if this option is set to true (which
is the default value, because clang-format always inserts empty lines
before access modifiers), otherwise empty lines are removed.

Fixes issue #16518.

Differential Revision: https://reviews.llvm.org/D93846
2021-01-25 21:02:41 +01:00
Lukas Barth 3395a336b0 [clang-format] add case aware include sorting
* Adds an option to [clang-format] which sorts
  headers in an alphabetical manner using case
  only for tie-breakers. The options is off by
  default in favor of the current ASCIIbetical
  sorting style.

Reviewed By: curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D95017
2021-01-25 18:53:22 +01:00
Lukas Barth 256314711f [clang-format] Add the possibility to align assignments spanning empty lines or comments
Currently, empty lines and comments break alignment of assignments on consecutive
lines. This makes the AlignConsecutiveAssignments option an enum that allows controlling
whether empty lines or empty lines and comments should be ignored when aligning
assignments.

Reviewed By: MyDeveloperDay, HazardyKnusperkeks, tinloaf

Differential Revision: https://reviews.llvm.org/D93986
2021-01-25 09:41:50 +01:00
Marek Kurdej 7b9d88ab38 Revert "[clang-format] Add the possibility to align assignments spanning empty lines or comments"
This reverts commit f00a20e51c.
2021-01-25 09:40:46 +01:00
Marek Kurdej f00a20e51c [clang-format] Add the possibility to align assignments spanning empty lines or comments
Currently, empty lines and comments break alignment of assignments on consecutive
lines. This makes the AlignConsecutiveAssignments option an enum that allows controlling
whether empty lines or empty lines and comments should be ignored when aligning
assignments.

Reviewed By: MyDeveloperDay, HazardyKnusperkeks, tinloaf

Differential Revision: https://reviews.llvm.org/D93986
2021-01-25 09:36:55 +01:00
Björn Schäpers cbdde495ba [clang-format] Apply Allman style to lambdas
Differential Revision: https://reviews.llvm.org/D94906
2021-01-19 18:17:01 +01:00
Björn Schäpers bcc1dee600 [clang-format] Add StatementAttributeLikeMacros option
This allows to ignore for example Qts emit when
AlignConsecutiveDeclarations is set, otherwise it is parsed as a type
and it results in some misformating:

unsigned char MyChar = 'x';
emit          signal(MyChar);

Differential Revision: https://reviews.llvm.org/D93776
2021-01-18 06:54:31 +01:00
mydeveloperday 00dc97f167 [clang-format] PR48594 BraceWrapping: SplitEmptyRecord ignored for templates
https://bugs.llvm.org/show_bug.cgi?id=48594

Empty or small templates were not being treated the same way as small classes especially when SplitEmptyRecord was set to true

This revision aims to help this by identifying a case when we should try not to merge the lines together

Reviewed By: curdeius, JohelEGP

Differential Revision: https://reviews.llvm.org/D93839
2021-01-17 11:14:33 +00:00
mydeveloperday 9af03864df [clang-format] Revert e9e6e3b34a
Reverting {D92753} due to issues with #pragma indentation in #ifdef/endif structure
2021-01-17 11:07:31 +00:00
mydeveloperday c7dcc4c725 [clang-format] PR48569 clang-format fails to align case label with `switch` with Whitesmith Indentation
https://bugs.llvm.org/show_bug.cgi?id=48569

This is a tentative fix which addresses a PR raise regarding Case indentation when working with Whitesmiths Indentation

I could not find online any reference sources as to what the case indentation for Whitesmith's should be (or be allowed to be)

But according to the documentation, we don't obey the rules for Whitesmith's

```
In particular, the documentation states that this option is to "indent case labels one level from the switch statement. When false, use the same indentation level as for the switch statement."
```

The behaviour we add here is actually as the TODO in the tests used to state in {D67627}, but when {D82016} was added and I brought these tests out from being TODO I realized I changed the indentation.

Reviewed By: curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D93806
2020-12-26 15:19:03 +00:00
Björn Schäpers 47877c9079 [clang-format] Add SpaceBeforeCaseColon option
With which you can add a space before the colon of a case or default
statement.

Differential Revision: https://reviews.llvm.org/D93240
2020-12-23 22:07:14 +01:00
mydeveloperday 5426b2f9ed [clang-format] PR48535 clang-format Incorrectly Removes Space After C Style Cast When Type Is Not a Pointer
https://bugs.llvm.org/show_bug.cgi?id=48535

using `SpaceAfterCStyleCast: true`

```
size_t idx = (size_t) a;
size_t idx = (size_t) (a - 1);
```

is formatted as:

```
size_t idx = (size_t) a;
size_t idx = (size_t)(a - 1);
```

This revision aims to improve that by improving the function which tries to identify a CastRParen

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D93626
2020-12-23 14:45:14 +00:00
mydeveloperday db41c0b357 [clang-format] PR35514 brace-init member initializers in function-try-blocks are not formatted correctly
https://bugs.llvm.org/show_bug.cgi?id=35514

Initializer lists with a try-block are incorrectly formatted.

e.g.

```
Foo(int abc, int def) try : _abc(abc), _def{def}, _ghi{1} {
  callA();
  callB();
} catch (std::exception&) {
}
```

is formatted as:

```
Foo(int abc, int def) try : _abc(abc), _def { def }
, _ghi{1} {
  callA();
  callB();
}
catch (std::exception&) {
}
```

This revision adds support in the parseTryCatch for braced initializers in the initializer list

Reviewed By: curdeius, HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D93296
2020-12-17 09:39:37 +00:00
Chuanqi Xu 8b48d24373 [clang-format] Recognize c++ coroutine keywords as unary operator to avoid misleading pointer alignment
Summary: The clang-format may go wrong when handle c++ coroutine keywords and pointer.
The default value for PointerAlignment is PAS_Right. So the following format is good:
```
co_return *a;
```
But within some code style, the value for PointerAlignment is PAS_Left, the behavior goes wrong:
```
co_return* a;
```

test-plan: check-clang

reviewers: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D91245
2020-12-15 20:50:46 +08:00
mydeveloperday e9e6e3b34a [clang-format] Add IndentPragma style to eliminate common clang-format off scenario
A quick search of github.com, shows one common scenario for excessive use of //clang-format off/on is the indentation of #pragma's, especially around the areas of loop optimization or OpenMP

This revision aims to help that by introducing an `IndentPragmas` style, the aim of which is to keep the pragma at the current level of scope

```
    for (int i = 0; i < 5; i++) {
// clang-format off
        #pragma HLS UNROLL
        // clang-format on
        for (int j = 0; j < 5; j++) {
// clang-format off
            #pragma HLS UNROLL
            // clang-format on
     ....
```

can become

```
    for (int i = 0; i < 5; i++) {
        #pragma HLS UNROLL
        for (int j = 0; j < 5; j++) {
            #pragma HLS UNROLL
        ....
```

This revision also support working alongside the `IndentPPDirective` of `BeforeHash` and `AfterHash` (see unit tests for examples)

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D92753
2020-12-10 11:17:33 +00:00
mydeveloperday 7b2d62fd7f [clang-format] PR42434 Remove preprocessor and pragma lines from ObjectiveC guess
clang-format see the `disable:` in   __pragma(warning(disable:)) as ObjectiveC method call

Remove any line starting with `#` or __pragma line from being part of the ObjectiveC guess

https://bugs.llvm.org/show_bug.cgi?id=42434

Reviewed By: curdeius, krasimir

Differential Revision: https://reviews.llvm.org/D92922
2020-12-10 11:13:22 +00:00
mydeveloperday 8668eae2ad [clang-format] Add option for case sensitive regexes for sorted includes
I think the title says everything.

Reviewed By: MyDeveloperDay

Patch By:  HazardyKnusperkeks

Differential Revision: https://reviews.llvm.org/D91507
2020-12-05 16:33:21 +00:00
mydeveloperday 840e651dc6 [clang-format] Improve clang-formats handling of concepts
This is a starting point to improve the handling of concepts in clang-format. There is currently no real formatting of concepts and this can lead to some odd formatting, e.g.

Reviewed By: mitchell-stellar, miscco, curdeius

Differential Revision: https://reviews.llvm.org/D79773
2020-12-04 17:45:50 +00:00
Mark Nauwelaerts 1e4d6d1c1f [clang-format] Add new option PenaltyIndentedWhitespace
Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D90534
2020-12-01 23:59:44 +01:00
Alex Richardson 906b9dbc9d [clang-format] Improve BAS_DontAlign+AllowAllArgumentsOnNextLine=false
TokenAnnotator::splitPenalty() was always returning 0 for opening parens if
AlignAfterOpenBracket was set to BAS_DontAlign, so the preferred point for
line breaking was always after the open paren (and was ignoring
PenaltyBreakBeforeFirstCallParameter). This change restricts the zero
penalty to the AllowAllArgumentsOnNextLine case. This results in improved
formatting for FreeBSD where we set AllowAllArgumentsOnNextLine: false
and a high value for PenaltyBreakBeforeFirstCallParameter to avoid breaking
after the open paren.

Before:
```
functionCall(
    paramA, paramB, paramC);
void functionDecl(
    int A, int B, int C)
```
After:
```
functionCall(paramA, paramB,
    paramC);
void functionDecl(int A, int B,
    int C)
```

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D90246
2020-11-02 17:52:37 +00:00
Alex Richardson 850325348a [clang-format] Fix misformatted macro definitions after D86959
After D86959 the code `#define lambda [](const decltype(x) &ptr) {}`
was formatted as `#define lambda [](const decltype(x) & ptr) {}` due to
now parsing the '&' token as a BinaryOperator. The problem was caused by
the condition `Line.InPPDirective && (!Left->Previous || !Left->Previous->is(tok::identifier))) {`
being matched and therefore not performing the checks for "previous token
is one of decltype/_Atomic/etc.". This patch moves those checks after the
existing if/else chain to ensure the left-parent token classification is
always run after checking whether the contents of the parens is an
expression or not.

This change also introduces a new TokenAnnotatorTest that checks the
token kind and Role of Tokens after analyzing them. This is used to check
for TT_PointerOrReference, in addition to indirectly testing this based
on the resulting formatting.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D88956
2020-10-27 12:16:46 +00:00
Alex Richardson 66a3b9073a [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
2020-10-20 10:13:28 +01:00
Alex Richardson 9e27f38354 [clang-format] Add a SpaceAroundPointerQualifiers style option
Some projects (e.g. FreeBSD) align pointers to the right but expect a
space between the '*' and any pointer qualifiers such as const. To handle
these cases this patch adds a new config option SpaceAroundPointerQualifiers
that can be used to configure whether spaces need to be added before/after
pointer qualifiers.

PointerAlignment = Right
SpaceAroundPointerQualifiers = Default/After:
void *const *x = NULL;
SpaceAroundPointerQualifiers = Before/Both
void * const *x = NULL;

PointerAlignment = Left
SpaceAroundPointerQualifiers = Default/Before:
void* const* x = NULL;
SpaceAroundPointerQualifiers = After/Both
void* const * x = NULL;

PointerAlignment = Middle
SpaceAroundPointerQualifiers = Default/Before/After/Both:
void * const * x = NULL;

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D88227
2020-10-18 18:17:50 +01:00
Sylvestre Ledru b9e789447f Revert "[clang-format] Fix AlignConsecutive on PP blocks"
This reverts commit b2eb439317.

Caused the regression:
https://bugs.llvm.org/show_bug.cgi?id=47589

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D89464
2020-10-17 19:52:51 +02:00
Joachim Meyer f64903fd81 Add -Wno-error=unknown flag to clang-format.
Currently newer clang-format options cannot be included in .clang-format files, if not all users can be forced to use an updated version.
This patch tries to solve this by adding an option to clang-format, enabling to ignore unknown (newer) options.

Differential Revision: https://reviews.llvm.org/D86137
2020-09-19 10:17:57 +02:00
mydeveloperday 2e7add812e [clang-format] Add a option for the position of Java static import
Some Java style guides and IDEs group Java static imports after
 non-static imports. This patch allows clang-format to control
 the location of static imports.

Patch by: @bc-lee

Reviewed By: MyDeveloperDay, JakeMerdichAMD

Differential Revision: https://reviews.llvm.org/D87201
2020-09-18 18:12:21 +01:00
mydeveloperday 40e771c1c0 [clang-format][regression][PR47461] ifdef causes catch to be seen as a function
https://bugs.llvm.org/show_bug.cgi?id=47461

The following change {D80940} caused a regression in code which ifdef's around the try and catch block cause incorrect brace placement around the catch

```
  try
  {
  }
  catch (...) {
    // This is not a small function
    bar = 1;
  }
}
```

The brace after the catch will be placed on a newline

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D87291
2020-09-17 13:23:06 +01:00
mydeveloperday c81dd3d159 [clang-format] Handle shifts within conditions
In some situation shifts can be treated as a template, and is thus formatted as one. So, by doing a couple extra checks to assure that the condition doesn't contain a template, and is in fact a bit shift should solve this problem.

This is a fix for [[ https://bugs.llvm.org/show_bug.cgi?id=46969 | bug 46969 ]]

Reviewed By: MyDeveloperDay

Patch By: Saldivarcher

Differential Revision: https://reviews.llvm.org/D86581
2020-09-08 16:40:04 +01:00
Alex Richardson 05147d3309 [clang-format] Correctly parse function declarations with TypenameMacros
When using the always break after return type setting:
Before:
SomeType funcdecl(LIST(uint64_t));
After:
SomeType
funcdecl(LIST(uint64_t));"

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D87007
2020-09-07 10:09:18 +01:00
Alex Richardson 9a22eba150 [clang-format] Parse __underlying_type(T) as a type
Before: MACRO(__underlying_type(A) * a);
After:  MACRO(__underlying_type(A) *a);

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D86960
2020-09-07 10:09:18 +01:00
Alex Richardson 56fa7d1dc6 [clang-format] Fix formatting of _Atomic() qualifier
Before: _Atomic(uint64_t) * a;
After: _Atomic(uint64_t) *a;

This treats _Atomic the same as the the TypenameMacros and decltype. It
also allows some cleanup by removing checks whether the token before a
paren is kw_decltype and instead checking for TT_TypeDeclarationParen.
While touching this code also extend the decltype test cases to also check
for typeof() and _Atomic(T).

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D86959
2020-09-07 10:09:18 +01:00
Alex Richardson cd01eec14b [clang-format] Check that */& after typename macros are pointers/references
Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D86950
2020-09-07 10:09:18 +01:00
Alex Richardson 8aa3b8da5d [clang-format] Handle typename macros inside cast expressions
Before: x = (STACK_OF(uint64_t)) & a;
After:  x = (STACK_OF(uint64_t))&a;

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D86930
2020-09-07 10:09:17 +01:00