923 Commits

Author SHA1 Message Date
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 f00a20e51c1d186e72844939aad10416e1cc99de.
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
9af03864df [clang-format] Revert e9e6e3b34a8e
Reverting {D92753} due to issues with #pragma indentation in #ifdef/endif structure
2021-01-17 11:07:31 +00:00
Rafał Jelonek
89878e8c96 [clang-format] Find main include after block ended with #pragma hdrstop
Find main include in first include block not ended with #pragma hdrstop

Reviewed By: curdeius

Differential Revision: https://reviews.llvm.org/D94217
2021-01-11 09:49:34 +01:00
Rafał Jelonek
7473940bae [clang-format] turn on formatting after "clang-format on" while sorting includes
Formatting is not active after "clang-format on" due to merging lines while formatting is off. Also, use trimmed line. Behaviour with LF is different than with CRLF.

Reviewed By: curdeius, MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D94206
2021-01-11 09:41:15 +01:00
Rafał Jelonek
ee27c767bd [clang-format] Skip UTF8 Byte Order Mark while sorting includes
If file contain BOM then first instruction (include or clang-format off) is ignored

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D94201
2021-01-11 09:32:55 +01:00
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
Nathan James
eb9483b210
[format] Add overload to parseConfiguration that accept llvm::MemoryBufferRef
This overload should be used for better diagnostics when parsing configurations.
Now a failure to parse will list the filename (or <command-line>) instead of just `YAML`.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D93633
2020-12-23 12:08:29 +00:00
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
Marek Kurdej
fe21c86ee7 [clang-format] De-duplicate includes with leading or trailing whitespace.
This fixes PR46555 (https://bugs.llvm.org/show_bug.cgi?id=46555).

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D88296
2020-12-03 10:59:46 +01:00
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
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
Ben Hamilton
e7b4feea8e [Format/ObjC] Add NS_SWIFT_NAME() and CF_SWIFT_NAME() to WhitespaceSensitiveMacros
The argument passed to the preprocessor macros `NS_SWIFT_NAME(x)` and
`CF_SWIFT_NAME(x)` is stringified before passing to
`__attribute__((swift_name("x")))`.

ClangFormat didn't know about this stringification, so its custom parser
tried to parse the argument(s) passed to the macro as if they were
normal function arguments.

That means ClangFormat currently incorrectly inserts whitespace
between `NS_SWIFT_NAME` arguments with colons and dots, so:

```
extern UIWindow *MainWindow(void) NS_SWIFT_NAME(getter:MyHelper.mainWindow());
```

becomes:

```
extern UIWindow *MainWindow(void) NS_SWIFT_NAME(getter : MyHelper.mainWindow());
```

which clang treats as a parser error:

```
error: 'swift_name' attribute has invalid identifier for context name [-Werror,-Wswift-name-attribute]
```

Thankfully, D82620 recently added the ability to treat specific macros
as "whitespace sensitive", meaning their arguments are implicitly
treated as strings (so whitespace is not added anywhere inside).

This diff adds `NS_SWIFT_NAME` and `CF_SWIFT_NAME` to
`WhitespaceSensitiveMacros` so their arguments are implicitly treated
as whitespace-sensitive.

Test Plan:
  New tests added. Ran tests with:
  % ninja FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D89425
2020-10-14 15:42:51 -06:00
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
Alex Richardson
e7bd058c7e [clang-format] Allow configuring list of macros that map to attributes
This adds a `AttributeMacros` configuration option that causes certain
identifiers to be parsed like a __attribute__((foo)) annotation.
This is motivated by our CHERI C/C++ fork which adds a __capability
qualifier for pointer/reference. Without this change clang-format parses
many type declarations as multiplications/bitwise-and instead.
I initially considered adding "__capability" as a new clang-format keyword,
but having a list of macros that should be treated as attributes is more
flexible since it can be used e.g. for static analyzer annotations or other language
extensions.

Example: std::vector<foo * __capability> -> std::vector<foo *__capability>

Depends on D86775 (to apply cleanly)

Reviewed By: MyDeveloperDay, jrtc27

Differential Revision: https://reviews.llvm.org/D86782
2020-09-07 10:09:17 +01:00
Alex Richardson
4f10369564 [clang-format] Parse restrict as a pointer qualifier
Before: void f() { MACRO(A * restrict a); }
After:  void f() { MACRO(A *restrict a); }

Also check that the __restrict and __restrict__ aliases are handled.

Reviewed By: JakeMerdichAMD

Differential Revision: https://reviews.llvm.org/D86710
2020-08-28 11:31:47 +01:00
Bruno Ricci
f5acd11d2c
[clang-format][NFC] Be more careful about the layout of FormatToken.
The underlying ABI forces FormatToken to have a lot of padding.

Currently (on x86-64 linux) `sizeof(FormatToken) == 288`. After this patch
`sizeof(FormatToken) == 232`.

No functional changes.

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D84306
2020-07-28 10:30:28 +01:00
Anders Waldenborg
52ab7aa0ba [clang-format] Add BitFieldColonSpacing option
This new option allows controlling if there should be spaces around
the ':' in a bitfield declaration.

BitFieldColonSpacing accepts four different values:

  // "Both" - default
  unsigned bitfield : 5
  unsigned bf2      : 5  // AlignConsecutiveBitFields=true

  // "None"
  unsigned bitfield:5
  unsigned bf2     :5

  // "Before"
  unsigned bitfield :5
  unsigned bf2      :5

  // "After"
  unsigned bitfield: 5
  unsigned bf2     : 5

Differential Revision: https://reviews.llvm.org/D84090
2020-07-20 20:55:51 +02:00
Jake Merdich
0c332a7784 [clang-format] Preserve whitespace in selected macros
Summary:
https://bugs.llvm.org/show_bug.cgi?id=46383

When the c preprocessor stringizes tokens, the generated string literals
are affected by the whitespace. This means clang-format can affect
codegen silently, adding spaces and newlines to strings.  Practically
speaking, the vast majority of cases will be harmless, only affecting
single identifiers or debug macros.

In the interest of doing no harm in other cases though, this introduces
a blacklist option 'WhitespaceSensitiveMacros', which contains a list of
names of function-like macros whose contents should not be touched by
clang-format, period. Clang-format can't automatically detect these
without a real compile context, so users will have to specify it
explicitly (it still beats clang-format off'ing at every invocation).

Defaults include "STRINGIZE", "PP_STRINGIZE", and "BOOST_PP_STRINGIZE".

Subscribers: kristof.beyls, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D82620
2020-06-29 09:57:47 -04:00
Sam McCall
f1ef237df7
[Format] Add more proto enclosing function names 2020-06-16 18:05:01 +02:00
Jonathan Coe
9520bf146d [clang-format] Update GoogleStyle for C# code to match Google's internal C# style guide
Summary: Google's C# style guide is at https://google.github.io/styleguide/csharp-style.html

Reviewers: krasimir, MyDeveloperDay, sammccall

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits, klimek

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D79715
2020-06-04 15:48:00 +01:00
mydeveloperday
6ef45b0426 [clang-format] Added new option IndentExternBlock
Reviewers: MyDeveloperDay, krasimir, klimek, mitchell-stellar, Abpostelnicu

Patch By: MarcusJohnson91

Reviewed By: MyDeveloperDay, Abpostelnicu

Subscribers: sylvestre.ledru, Abpostelnicu, cfe-commits

Tags: #clang, #clang-format, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D75791
2020-05-20 21:27:15 +01:00
mydeveloperday
807ab2cd0d [clang-format] [PR42164] Add Option to Break before While
Summary:
Its currently not possible to recreate the GNU style using the `BreakBeforeBraces: Custom` style due to a lack of missing `BeforeWhile` in the `BraceWrappingFlags`

The following request was raised to add `BeforeWhile` in a `do..while` context like `BeforeElse` and `BeforeCatch` to give greater control over the positioning of the `while`

https://bugs.llvm.org/show_bug.cgi?id=42164

Reviewers: krasimir, mitchell-stellar, sammccall

Reviewed By: krasimir

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D79325
2020-05-20 07:48:45 +01:00
mydeveloperday
b99bf0e08b [clang-format][PR45816] Add AlignConsecutiveBitFields
Summary:
The following revision follows D80115 since @MyDeveloperDay and I apparently both had the same idea at the same time, for https://bugs.llvm.org/show_bug.cgi?id=45816 and my efforts on tooling support for AMDVLK, respectively.

This option aligns adjacent bitfield separators across lines, in a manner similar to AlignConsecutiveAssignments and friends.

Example:
```
struct RawFloat {
  uint32_t sign : 1;
  uint32_t exponent : 8;
  uint32_t mantissa : 23;
};
```
would become
```
struct RawFloat {
  uint32_t sign     : 1;
  uint32_t exponent : 8;
  uint32_t mantissa : 23;
};
```

This also handles c++2a style bitfield-initializers with AlignConsecutiveAssignments.
```
struct RawFloat {
  uint32_t sign     : 1  = 0;
  uint32_t exponent : 8  = 127;
  uint32_t mantissa : 23 = 0;
}; // defaults to 1.0f
```

Things this change does not do:
 - Align multiple comma-chained bitfield variables. None of the other
   AlignConsecutive* options seem to implement that either.
 - Detect bitfields that have a width specified with something other
   than a numeric literal (ie, `int a : SOME_MACRO;`). That'd be fairly
   difficult to parse and is rare.

Patch By:  JakeMerdichAMD

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits, MyDeveloperDay

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D80176
2020-05-20 07:42:58 +01:00
Francois Ferrand
0ee04e6e0d [clang-format] Fix AlignOperands when BreakBeforeBinaryOperators is set
Summary:
Even when BreakBeforeBinaryOperators is set, AlignOperands kept
aligning the beginning of the line, even when it could align the
actual operands (e.g. after an assignment).

With this patch, the operands are actually aligned, and the operator
gets aligned with the equal sign:

  int aaaaa = bbbbbb
            + cccccc;

This not happen in tests, to avoid 'breaking' the indentation:

  if (aaaaa
      && bbbbb)
    return;

Reviewers: krasimir, djasper, klimek, MyDeveloperDay

Reviewed By: MyDeveloperDay

Subscribers: MyDeveloperDay, acoomans, cfe-commits, klimek

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D32478
2020-05-15 16:40:31 +02:00
Manuel Klimek
53cc90f789 Make FormatToken::Type private.
This enables us to intercept changes to the token type via setType(), which
is a precondition for being able to use multi-pass formatting for macro
arguments.

Differential Revision: https://reviews.llvm.org/D67405
2020-05-13 16:37:58 +02:00
mydeveloperday
305a4abfd3 [clang-format] [PR45126] Help text is missing all available formats
Summary:
https://bugs.llvm.org/show_bug.cgi?id=45126

GNU and Microsoft styles are built in supported styles but are not displayed in the help text

Reviewed By: sammccall

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D79372
2020-05-07 19:50:21 +01:00
Daan De Meyer
f21c704553 clang-format: Add ControlStatementsExceptForEachMacros option to SpaceBeforeParens
Summary: systemd recently added a clang-format file. One issue I
encountered in using clang-format on systemd is that systemd does
not add a space before the parens of their foreach macros but
clang-format always adds a space. This does not seem to be
configurable in clang-format. This revision adds the
ControlStatementsExceptForEachMacros option to SpaceBeforeParens
which puts a space before all control statement parens except
ForEach macros. This drastically reduces the amount of changes
when running clang-format on systemd's source code.

Reviewers: MyDeveloperDay, krasimir, mitchell-stellar

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D78869
2020-05-06 20:59:24 +02:00
Aaron Smith
292058a5d6 [clang-format] Fix Microsoft style for enums
Summary:
Before this change enums were formatted incorrectly for the Microsoft style.

[C++ Example]

    enum {
      one,
      two
    } three, four;

[Incorrectly Formatted]

    enum
    {
      one,
      two
    } three,
        four;

[Correct Format with Patch]

    enum
    {
      one,
      two
    } three, four;

Reviewers: jbcoe, MyDeveloperDay, rnk

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D78982
2020-04-30 09:11:54 -07:00
mydeveloperday
573322694a [clang-format] Correct the AfterControlStatement configuration option output style
Summary:
Due to the order in which the enum cases were defined the old options which were retained for backwards compatibility were being preferred over the new options when printing with the --dump-config option.

Reviewers: MyDeveloperDay

Reviewed By: MyDeveloperDay

Patch By:  duncan-llvm

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D79020
2020-04-30 11:05:02 +01:00
Richard Smith
20df6038ee Make -fno-char8_t disable the char8_t keyword, even in C++20.
This fixes a regression introduced in r354736, and makes our behavior
compatible with that of Clang 8 and GCC.
2020-04-28 23:49:35 -07:00
Haojian Wu
47ef09e484 Revert "clang-format: support aligned nested conditionals formatting"
This reverts 3d61b1120e8267aa39f4c9a33d618dbaec4ec6fa, 5daa25fd7a184524759b6ad065a8bd7e95aa149a

The clang-format test (FormatTest.ConfigurableUseOfTab) is failing in the buildbot:

http://lab.llvm.org:8011/builders/clang-s390x-linux/builds/31811/steps/ninja%20check%201/logs/stdio
2020-04-23 09:25:01 +02:00
Francois Ferrand
3d61b1120e clang-format: Introduce stricter AlignOperands flag
Summary:
Even when BreakBeforeBinaryOperators is set, AlignOperands kept
aligning the beginning of the line, even when it could align the
actual operands (e.g. after an assignment).

With this patch, there is an option to actually align the operands, so
that the operator gets right-aligned with the equal sign or return
operator:

  int aaaaa = bbbbbb
            + cccccc;
  return aaaaaaa
      && bbbbbbb;

This not happen in parentheses, to avoid 'breaking' the indentation:

  if (aaaaa
      && bbbbb)
    return;

Reviewers: krasimir, djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D32478
2020-04-22 17:36:38 +02:00
Aaron Ballman
6a30894391 C++2a -> C++20 in some identifiers; NFC. 2020-04-21 15:37:19 -04:00
Georgii Rymar
1647ff6e27 [ADT/STLExtras.h] - Add llvm::is_sorted wrapper and update callers.
It can be used to avoid passing the begin and end of a range.
This makes the code shorter and it is consistent with another
wrappers we already have.

Differential revision: https://reviews.llvm.org/D78016
2020-04-14 14:11:02 +03:00
mydeveloperday
e8111502d8 [clang-format] use spaces for alignment with UT_ForContinuationAndIndentation
Summary:
Use spaces instead of tabs for alignment with UT_ForContinuationAndIndentation to make the code aligned for any tab/indent width.

Fixes https://bugs.llvm.org/show_bug.cgi?id=38381

Reviewed By: MyDeveloperDay

Patch By: fickert

Tags: #clang-format

Differential Revision: https://reviews.llvm.org/D75034
2020-04-13 15:14:26 +01:00
Mitchell Balan
c5c487f0d4 Revert "[clang-format] Add option to specify explicit config file"
There were a number of unexpected test failures.

This reverts commit 10b1a87ba35d386b718f0e83c1d750631705b220.
2020-03-11 16:14:42 -04:00
Mitchell Balan
10b1a87ba3 [clang-format] Add option to specify explicit config file
Summary:
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.

Reviewers: djasper, ioeric, krasimir, MyDeveloperDay

Reviewed by: MyDeveloperDay

Contributed by: tnorth

Subscribers: cfe-commits, lebedev.ri, MyDeveloperDay, klimek, sammccall, mitchell-stellar

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D72326
2020-03-11 15:56:44 -04:00
Wawha
fa0118e6e5 [clang-format] Add new option BeforeLambdaBody in Allman style.
This option add a line break then a lambda is inside a function call.

Reviewers : djasper, klimek, krasimir, MyDeveloperDay

Reviewed By: MyDeveloperDay

Differential Revision: https://reviews.llvm.org/D44609
2020-02-13 22:16:41 +01:00
mydeveloperday
70c98671fa [clang-format] Add option for not breaking line before ObjC params
Summary:
From `clang-format` version 3.7.0 and up, , there is no way to keep following format of ObjectiveC block:
```
- (void)_aMethod
{
    [self.test1 t:self w:self callback:^(typeof(self) self, NSNumber *u, NSNumber *v) {
        u = c;
    }]
}
```
Regardless of the change in `.clang-format` configuration file, all parameters will be lined up so that colons will be on the same column, like following:
```
- (void)_aMethod
{
    [self.test1 t:self
                w:self
         callback:^(typeof(self) self, NSNumber *u, NSNumber *v) {
             u = c;
         }]
}
```

Considering with ObjectiveC, the first code style is cleaner & more readable for some people, I've added a config option: `ObjCDontBreakBeforeNestedBlockParam` (boolean) so that if it is enable, the first code style will be favored.

Reviewed By: MyDeveloperDay

Patch By: ghvg1313

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D70926
2020-02-01 17:39:34 +00:00
Martin Probst
a324fcf1ae clang-format: insert trailing commas into containers.
Summary:
This change adds an option to insert trailing commas into container
literals. For example, in JavaScript:

    const x = [
      a,
      b,
       ^~~~~ inserted if missing.
    ]

This is implemented as a seperate post-processing pass after formatting
(because formatting might change whether the container literal does or
does not wrap). This keeps the code relatively simple and orthogonal,
though it has the notable drawback that the newly inserted comma is not
taken into account for formatting decisions (e.g. it might exceed the 80
char limit). To avoid exceeding the ColumnLimit, a comma is only
inserted if it fits into the limit.

Trailing comma insertion conceptually conflicts with argument
bin-packing: inserting a comma disables bin-packing, so we cannot do
both. clang-format rejects FormatStyle configurations that do both with
this change.

Reviewers: krasimir, MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang
2020-01-29 13:23:54 +01:00