563 Commits

Author SHA1 Message Date
Daniel Jasper
2cf664fb86 clang-format: Don't indent builders relative to "return".
While this looks kind of nice, it wastes horizontal space and does not
seem to be common in the LLVM codebase.

Before:
  return llvm::StringSwitch<Reference::Kind>(name)
      .StartsWith(".eh_frame_hdr", ORDER_EH_FRAMEHDR)
      .StartsWith(".eh_frame", ORDER_EH_FRAME)
      .StartsWith(".init", ORDER_INIT)
      .StartsWith(".fini", ORDER_FINI)
      .StartsWith(".hash", ORDER_HASH)
      .Default(ORDER_TEXT);

After:
  return llvm::StringSwitch<Reference::Kind>(name)
             .StartsWith(".eh_frame_hdr", ORDER_EH_FRAMEHDR)
             .StartsWith(".eh_frame", ORDER_EH_FRAME)
             .StartsWith(".init", ORDER_INIT)
             .StartsWith(".fini", ORDER_FINI)
             .StartsWith(".hash", ORDER_HASH)
             .Default(ORDER_TEXT);

llvm-svn: 189657
2013-08-30 07:27:13 +00:00
Daniel Jasper
f8151e9bc1 clang-format: Fix corner case in builder-type calls.
Before:
  aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()->aaaaaaaaaaaaaae(
                                                 0)->aaaaaaaaaaaaaaa();

After:
  aaaaaaaaaaaaa->aaaaaaaaaaaaaaaaaaaaaaaa()
      ->aaaaaaaaaaaaaae(0)
      ->aaaaaaaaaaaaaaa();

llvm-svn: 189655
2013-08-30 07:12:40 +00:00
Alexander Kornienko
d7b837e78d Better support for multiline string literals (including C++11 raw string literals).
Summary:
Calculate characters in the first and the last line correctly so that
we only break before the literal when needed.

Reviewers: djasper

Reviewed By: djasper

CC: cfe-commits, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D1544

llvm-svn: 189595
2013-08-29 17:32:57 +00:00
Manuel Klimek
31c85921b2 Fixes various problems with accounting for tabs in the original code.
We now count the original token's column directly when lexing the
tokens, where we already have all knowledge about where lines start.

Before this patch, formatting:
 void f() {
 \tg();
 \th();
 }
would incorrectly count the \t's as 1 character if only the line
containing h() was reformatted, and thus indent h() at offset 1.

llvm-svn: 189585
2013-08-29 15:21:40 +00:00
Daniel Jasper
2739af3b9c clang-format: Improve token breaking behavior.
Two changes:
* Don't add an extra penalty on breaking the same token multiple times.
  Generally, we should prefer not to break, but once we break, the
  normal line breaking penalties apply.
* Slightly increase the penalty for breaking comments. In general, the
  author has put some thought into how to break the comment and we
  should not overwrite this unnecessarily.

With a 40-column column limit, formatting
  aaaaaa("aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaa");

Leads to:
Before:
  aaaaaa(
      "aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaa "
      "aaaaaaaaaaaaaaaa");

After:
  aaaaaa("aaaaaaaaaaaaaaaa "
         "aaaaaaaaaaaaaaaa "
         "aaaaaaaaaaaaaaaa");

llvm-svn: 189466
2013-08-28 10:03:58 +00:00
Daniel Jasper
96df37a6a1 clang-format: Fix segfault in 'incomplete' macros.
The code leading to a segfault was:
  #pragma omp threadprivate(y)), // long comment leading to a line break

This fixes llvm.org/PR16513.

llvm-svn: 189460
2013-08-28 09:17:37 +00:00
Daniel Jasper
a49393f54d clang-format: Fix infinite loop in macro special case.
If escaped newlines are aligned right
(FormatStyle.AlignEscapedNewlinesLeft == false), and a line contained
too many characters to fit into the column limit, this would result in
a (virtually) endless loop creating a negative number of spaces.

Instead, allow the escaped newlines to be pushed past the column limit
in this case.

This fixes llvm.org/PR16515.

llvm-svn: 189459
2013-08-28 09:07:32 +00:00
Daniel Jasper
ed8f1c6dce clang-format: Don't insert space in __has_include
Before:
  #if __has_include( <strstream>)
  #include <strstream>
  #endif

After:
  #if __has_include(<strstream>)
  #include <strstream>
  #endif

This fixes llvm.org/PR16516.

llvm-svn: 189455
2013-08-28 08:24:04 +00:00
Daniel Jasper
a15da3068d clang-format: Fix corner case in ObjC interface definitions.
In
  @implementation ObjcClass
  - (void)method;
  {
  }
  @end
the ObjC compiler seems to accept the superfluous comma after "method",
but clang-format used to assert on the subsequent "{".

This fixes llvm.org/PR16604.

llvm-svn: 189453
2013-08-28 08:04:23 +00:00
Daniel Jasper
65b79829c3 clang-format: Improve braced init list detection:
Before:
  std::this_thread::sleep_for(std::chrono::nanoseconds{
    std::chrono::seconds { 1 }
  } /
                              5);

After:
  std::this_thread::sleep_for(
      std::chrono::nanoseconds{ std::chrono::seconds{ 1 } } / 5);

This fixes llvm.org/PR16554.

llvm-svn: 189451
2013-08-28 07:50:37 +00:00
Daniel Jasper
d215b8bde2 clang-format: Fix corner case in overloaded operator definitions.
Before:
  SomeLoooooooooooooooooooooooooogType operator>
      >(const SomeLooooooooooooooooooooooooogType &other);
  SomeLoooooooooooooooooooooooooogType // break
      operator>>(const SomeLooooooooooooooooooooooooogType &other);

After:
  SomeLoooooooooooooooooooooooooogType
  operator>>(const SomeLooooooooooooooooooooooooogType &other);
  SomeLoooooooooooooooooooooooooogType // break
  operator>>(const SomeLooooooooooooooooooooooooogType &other);

This fixes llvm.org/PR16328.

llvm-svn: 189450
2013-08-28 07:27:35 +00:00
Daniel Jasper
11be8ac590 clang-format: Fix space in decltype-constexprs.
Before:
  static constexpr bool Bar = decltype(bar()) ::value;

After:
  static constexpr bool Bar = decltype(bar())::value;

llvm-svn: 189449
2013-08-28 07:07:07 +00:00
Daniel Jasper
4c6e00595b clang-format: Format segments of builder-type calls one per line.
This fixes llvm.org/PR14818.

Before:
  return llvm::StringSwitch<Reference::Kind>(name)
             .StartsWith(".eh_frame_hdr", ORDER_EH_FRAMEHDR)
             .StartsWith(".eh_frame", ORDER_EH_FRAME)
             .StartsWith(".init", ORDER_INIT).StartsWith(".fini", ORDER_FINI)
             .StartsWith(".hash", ORDER_HASH).Default(ORDER_TEXT);

After:
  return llvm::StringSwitch<Reference::Kind>(name)
             .StartsWith(".eh_frame_hdr", ORDER_EH_FRAMEHDR)
             .StartsWith(".eh_frame", ORDER_EH_FRAME)
             .StartsWith(".init", ORDER_INIT)
             .StartsWith(".fini", ORDER_FINI)
             .StartsWith(".hash", ORDER_HASH)
             .Default(ORDER_TEXT);

llvm-svn: 189353
2013-08-27 14:24:43 +00:00
Daniel Jasper
b27c4b7cb5 clang-format: Revamp builder-type call formatting.
Previously builder-type calls were only correctly recognized in
top-level calls.

This fixes llvm.org/PR16981.
Before:
  someobj->Add((new util::filetools::Handler(dir))->OnEvent1(
      NewPermanentCallback(this, &HandlerHolderClass::EventHandlerCBA))
                   ->OnEvent2(NewPermanentCallback(
                                  this, &HandlerHolderClass::EventHandlerCBB))
                   ->OnEvent3(NewPermanentCallback(
                                  this, &HandlerHolderClass::EventHandlerCBC))
                   ->OnEvent5(NewPermanentCallback(
                                  this, &HandlerHolderClass::EventHandlerCBD))
                   ->OnEvent6(NewPermanentCallback(
                         this, &HandlerHolderClass::EventHandlerCBE)));

After:
  someobj->Add((new util::filetools::Handler(dir))
                   ->OnEvent1(NewPermanentCallback(
                         this, &HandlerHolderClass::EventHandlerCBA))
                   ->OnEvent2(NewPermanentCallback(
                         this, &HandlerHolderClass::EventHandlerCBB))
                   ->OnEvent3(NewPermanentCallback(
                         this, &HandlerHolderClass::EventHandlerCBC))
                   ->OnEvent5(NewPermanentCallback(
                         this, &HandlerHolderClass::EventHandlerCBD))
                   ->OnEvent6(NewPermanentCallback(
                         this, &HandlerHolderClass::EventHandlerCBE)));

llvm-svn: 189337
2013-08-27 11:09:05 +00:00
Daniel Jasper
cb3f0ed817 clang-format: Fix bug in column layout.
Before (with 60 character limit in Google style):
  return {
      {aaaaaaaaaaaaaaaaaaaaaaaaa}, {aaaaaaaaaaaaaaaaa},
      {aaaaaaaaaaaaaaaaaaaaaaaaa}, {aaaaaaaaaaaaaaaaa}};
After:
  return {{aaaaaaaaaaaaaaaaaaaaaaaaa}, {aaaaaaaaaaaaaaaaa},
          {aaaaaaaaaaaaaaaaaaaaaaaaa}, {aaaaaaaaaaaaaaaaa}};

llvm-svn: 189327
2013-08-27 08:43:47 +00:00
Daniel Jasper
8863ada85b clang-format: Fix bug in column-layout formatting.
Specific arrangements of comments after trailing commas could confuse
the column width calculation, e.g. in:

vector<int> x = { a, b,
                  /* some */ /* comment */ };

llvm-svn: 189211
2013-08-26 08:10:17 +00:00
Daniel Jasper
0649d36172 clang-format: Fix indentation relative to unary expressions.
This should be done, only if we are still in the unary expression's
scope.

Before:
  bool aaaa = !aaaaaaaa(  // break
                   aaaaaaaaaaa);
  *aaaaaa = aaaaaaa( // break
       aaaaaaaaaaaaaaaa);

After:
  bool aaaa = !aaaaaaaa(  // break
                   aaaaaaaaaaa); // <- (unchanged)
  *aaaaaa = aaaaaaa( // break
      aaaaaaaaaaaaaaaa); // <- (no longer indented relative to "*")

llvm-svn: 189108
2013-08-23 15:14:03 +00:00
Daniel Jasper
f438cb7619 clang-format: Fix corner case for string splitting ..
.. in conjunction with Style.AlwaysBreakBeforeMultilineStrings. Also,
simplify the implementation by handling newly split strings and already
split strings by the same code.

llvm-svn: 189102
2013-08-23 11:57:34 +00:00
Daniel Jasper
f93551c8b1 clang-format: Handle trailing commas in column layout of braced list.
Before, this was causing errors.

Also exit early in breakProtrudingToken() (before the expensive call to
SourceManager::getSpellingColumnNumber()). This makes formatting huge
(100k+-item) braced lists possible.

llvm-svn: 189094
2013-08-23 10:05:49 +00:00
Daniel Jasper
8de9ed05b7 clang-format: Add column layout formatting for braced lists
With this patch, braced lists (with more than 3 elements are formatted in a
column layout if possible). E.g.:

  static const uint16_t CallerSavedRegs64Bit[] = {
    X86::RAX, X86::RDX, X86::RCX, X86::RSI, X86::RDI,
    X86::R8,  X86::R9,  X86::R10, X86::R11, 0
  };

Required other changes:
- FormatTokens can now have a special role that contains extra data and can do
  special formattings. A comma separated list is currently the only
  implementation.
- Move penalty calculation entirely into ContinuationIndenter (there was a last
  piece still in UnwrappedLineFormatter).

Review: http://llvm-reviews.chandlerc.com/D1457
llvm-svn: 189018
2013-08-22 15:00:41 +00:00
Daniel Jasper
f110e201e4 clang-format: Indent relative to unary operators.
Before:
  if (!aaaaaaaaaa(  // break
          aaaaa)) {
  }

After:
  if (!aaaaaaaaaa(  // break
           aaaaa)) {
  }

Also cleaned up formatting using clang-format.

llvm-svn: 188891
2013-08-21 08:39:01 +00:00
Daniel Jasper
2b41a82e61 clang-format: Format enum struct/class like enum.
Patch by Joe Hermaszewski. Thank you!

llvm-svn: 188794
2013-08-20 12:42:50 +00:00
Daniel Jasper
b55acad91c clang-format: Additional options for spaces around parentheses.
This patch adds four new options to control:
- Spaces after control keyworks (if(..) vs if (..))
- Spaces in empty parentheses (f( ) vs f())
- Spaces in c-style casts (( int )1.0 vs (int)1.0)
- Spaces in other parentheses (f(a) vs f( a ))

Patch by Joe Hermaszewski. Thank you for working on this!

llvm-svn: 188793
2013-08-20 12:36:34 +00:00
Daniel Jasper
5364306e12 clang-format: Fix return type line break decision.
This accidentally introduced by r186077, as function names were not
correctly recognized in templated declarations.

Before:
  template <class TemplateIt>
  SomeReturnType
  SomeFunction(TemplateIt begin, TemplateIt end, TemplateIt* stop) {}

After:
  template <class TemplateIt>
  SomeReturnType SomeFunction(TemplateIt begin, TemplateIt end,
                              TemplateIt* stop) {}

llvm-svn: 188665
2013-08-19 10:16:18 +00:00
Daniel Jasper
cdaffa45d4 clang-format: Add option for the offset of constructor initializers.
Some coding styles use a different indent for constructor initializers.

Patch by Klemens Baum. Thank you.
Review: http://llvm-reviews.chandlerc.com/D1360

Post review changes: Changed data type to unsigned as a negative indent
width does not make sense and added test for configuration parsing.

llvm-svn: 188260
2013-08-13 10:58:30 +00:00
Daniel Jasper
29a98cfca0 clang-format: Improve boolean expression formatting in macros.
Before:
  #define IF(a, b, c) if (a&&(b == c))

After:
  #define IF(a, b, c) if (a && (b == c))

llvm-svn: 188256
2013-08-13 09:09:09 +00:00
Daniel Jasper
70dc91aaf1 clang-format: Activate WebKit-style tests for MS compilers.
They were accidentally placed in the #if.

llvm-svn: 188255
2013-08-13 08:29:26 +00:00
Daniel Jasper
301d017139 clang-format: Slightly adapt line break penalties.
Before:
  aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa)
                               ->aaaaaaaaa());
After:
  aaaaaaaaaaaaaaaaaaaaaaaa(
      aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaa)->aaaaaaaaa());

llvm-svn: 188253
2013-08-13 06:50:04 +00:00
Daniel Jasper
467ddb161c clang-format: Improve stream-formatting.
Before:
  CHECK(controller->WriteProto(FLAGS_row_key, FLAGS_proto)) << "\""
                                                            << FLAGS_proto
                                                            << "\"";

After:
  SemaRef.Diag(Loc, diag::note_for_range_begin_end)
      << BEF << IsTemplate << Description << E->getType();

llvm-svn: 188175
2013-08-12 12:58:05 +00:00
Daniel Jasper
5903685a28 clang-format: Correctly format alias declarations.
Before:
  template <class CallbackClass>
  using MyCallback = void(CallbackClass::*)(SomeObject * Data);");

After:
  template <class CallbackClass>
  using MyCallback = void (CallbackClass::*)(SomeObject *Data);");

Also fix three wrong indentations.

llvm-svn: 188172
2013-08-12 12:16:34 +00:00
Manuel Klimek
d57355031c This change fixes the formatting of statements such as catch (E& e).
Previously these were formatting as catch (E & e) because the inner parenthesis
was being marked as an expression.

Patch by Thomas Gibson-Robinson.

llvm-svn: 188153
2013-08-12 03:51:17 +00:00
Arnold Schwaighofer
a8177a02ca Revert r187935 "Support for double width characters."
It broke a public build bot.

llvm-svn: 187957
2013-08-08 02:19:56 +00:00
Alexander Kornienko
ca3e6311a1 Support for double width characters.
Summary: Only works for UTF-8-encoded files.

Reviewers: djasper

Reviewed By: djasper

CC: cfe-commits, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D1311

llvm-svn: 187935
2013-08-07 23:29:01 +00:00
Manuel Klimek
a027f306a6 Fixes a couple of bugs with the Allman brace breaking.
In particular, left braces after an enum declaration now occur on their
own line.  Further, when short ifs/whiles are allowed these no longer
cause the left brace to be on the same line as the if/while when a
brace is included.

Patch by Thomas Gibson-Robinson.

llvm-svn: 187901
2013-08-07 19:20:45 +00:00
Daniel Jasper
9613c81fd2 clang-format: Fix corner case in OpenMP pragma formatting.
Before:
  #pragma omp reduction( | : var)
After:
  #pragma omp reduction(| : var)

llvm-svn: 187892
2013-08-07 16:29:23 +00:00
Daniel Jasper
d6877f0561 clang-format: Improve formatting of builder-type calls.
This removes a formatting choice that was added at one point, but is
not generally liked by users. Specifically, in builder-type calls, do
(easily) break if the object before the ./-> is either a field or a
parameter-less function call. I.e., don't break after "aa.aa.aa" or
"aa.aa.aa()". In general, these sequences in builder-type calls are
seen as a single entity and thus breaking them up is a bad idea.

llvm-svn: 187865
2013-08-07 05:34:02 +00:00
Manuel Klimek
d3ed59ae15 Implement Allman style.
Patch by Frank Miller.

llvm-svn: 187678
2013-08-02 21:31:59 +00:00
Daniel Jasper
3dcd7eca7a clang-format: Fix string breaking after "<<".
Before, clang-format would not break overly long string literals
following a "<<" with FormatStyle::AlwaysBreakBeforeMultilineStrings
being set.

llvm-svn: 187650
2013-08-02 11:01:15 +00:00
Daniel Jasper
7cdc78b39b clang-format: Operator precendence in ObjC method exprs.
Patch (mostly) by Adam Strzelecki. Thanks!

Before:
  [self aaaaaa:bbbbbbbbbbbbb
      aaaaaaaaaa:bbbbbbbbbbbbbbbbb
           aaaaa:bbbbbbbbbbb +
      bbbbbbbbbbbb aaaa:bbb];

After:
  [self aaaaaa:bbbbbbbbbbbbb
      aaaaaaaaaa:bbbbbbbbbbbbbbbbb
           aaaaa:bbbbbbbbbbb + bbbbbbbbbbbb
            aaaa:bbb];

This fixes llvm.org/PR16150.

llvm-svn: 187631
2013-08-01 23:13:03 +00:00
Daniel Jasper
b1ae734ffc clang-format: Don't break empty 2nd operand of ternary expr.
Before:
  some_quite_long_variable_name_ptr
      ?
      : argv[9] ? ptr : argv[8] ? : argv[7] ? ptr : argv[6];
After:
  some_quite_long_variable_name_ptr
      ?: argv[9] ? ptr : argv[8] ?: argv[7] ? ptr : argv[6];

Patch by Adam Strzelecki, thank you!!

This fixed llvm.org/PR16758.

llvm-svn: 187622
2013-08-01 22:05:00 +00:00
Daniel Jasper
8b1c63543b Teach clang-format to understand static_asserts better.
Before:
  template <bool B, bool C>
  class A {
    static_assert(B &&C, "Something is wrong");
  };

After:
  template <bool B, bool C>
  class A {
    static_assert(B && C, "Something is wrong");
  };

(Note the spacing around '&&'). Also change the identifier table to always
understand all C++11 keywords (which seems like the right thing to do).

llvm-svn: 187589
2013-08-01 17:58:23 +00:00
Daniel Jasper
9688ff197e clang-format: Improve line breaks in @property.
Before:
  @property(nonatomic, assign,
            readonly) NSString *looooooooooooooooooooooooooooongName;

After:
  @property(nonatomic, assign, readonly)
      NSString *looooooooooooooooooooooooooooongName;

llvm-svn: 187577
2013-08-01 13:46:58 +00:00
Daniel Jasper
552f4a7e27 clang-format: Make alignment of trailing comments optional ..
.. in order to support WebKit style properly.

llvm-svn: 187549
2013-07-31 23:55:15 +00:00
Daniel Jasper
65ee347285 clang-format: Add more options to namespace indentation.
With this patch, clang-format can be configured to:
* not indent in namespace at all (former behavior).
* indent in namespace as in other blocks.
* indent only in inner namespaces (as required by WebKit style).

Also fix alignment of access specifiers in WebKit style.

Patch started by Marek Kurdej. Thank you!

llvm-svn: 187540
2013-07-31 23:16:02 +00:00
Daniel Jasper
62c0ac0acf clang-format: Improve detection of templates.
Before:
  template <typename... Types>
        typename enable_if < 0<sizeof...(Types)>::type Foo() {}
After:
  template <typename... Types>
  typename enable_if<0 < sizeof...(Types)>::type Foo() {}

llvm-svn: 187458
2013-07-30 22:37:19 +00:00
Daniel Jasper
e33d4afa47 clang-format: Add two new style options to support WebKit style.
New options:
* Break before the commas of constructor initializers and align
  the commas with the colon.
* Break before binary operators

Additionally, for styles without column limit, don't just accept
linebreaks done by the user, but instead remove 'invalid' (according
to the current style) linebreaks and add 'required' ones.

llvm-svn: 187210
2013-07-26 16:56:36 +00:00
Daniel Jasper
516d7971b3 clang-format: Fix switch/case interaction with macros.
Before:
  #define OPERATION_CASE(name) \
    case OP_name:              \
    return operations::Operation##name

  switch (OpCode) {
      CASE(Add);
      CASE(Subtract);
    default:
      return operations::Unknown;
  }

After:
  #define OPERATION_CASE(name) \
    case OP_name:              \
      return operations::Operation##name;

  switch (OpCode) {
    CASE(Add);
    CASE(Subtract);
    default:
      return operations::Unknown;
  }

llvm-svn: 187118
2013-07-25 11:31:57 +00:00
Daniel Jasper
ffefb3d1e0 clang-format: Initial (incomplete) support for the WebKit coding style.
This is far from implementing all the rules given by
http://www.webkit.org/coding/coding-style.html

The important new feature is the support for styles that don't have a
column limit. For such styles, clang-format will (at the moment) simply
respect the input's formatting decisions within statements.

llvm-svn: 187033
2013-07-24 13:10:59 +00:00
Daniel Jasper
998cabcff4 clang-format: Fix bad line break with pointers to members.
Before:
  void f() {
    (a->*
     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(aaaa,
                                           bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);
  }

After:
  void f() {
    (a->*aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)(
        aaaa, bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);
  }

Also add missing test case.

llvm-svn: 186583
2013-07-18 14:46:07 +00:00
Daniel Jasper
ee6d650f91 clang-format: Add space in corner case.
Before:
  SomeType s __attribute__((unused))(InitValue);
After:
  SomeType s __attribute__((unused)) (InitValue);

llvm-svn: 186535
2013-07-17 20:25:02 +00:00