Commit Graph

1064 Commits

Author SHA1 Message Date
Daniel Jasper
ed41f774fc clang-format: Fix regression caused by r237244.
Before:
  [call aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.
          aaaaaaaa];

After:
  [call aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa.aaaaaaaa
          .aaaaaaaa];

This merely papers over the fact that we aren't parsing ObjC method calls
correctly. Also, the indentation is weird.

llvm-svn: 237681
2015-05-19 11:06:33 +00:00
Daniel Jasper
3c883d1dcc clang-format: Fix another regression caused by r237565.
Before:
  class C : test {
    class D : test{void f(){int i{2};
  }
  }
  ;
  }
  ;

After:
  class C : test {
    class D : test {
      void f() { int i{2}; }
    };
  };

llvm-svn: 237569
2015-05-18 14:49:19 +00:00
Daniel Jasper
cec9ffd2a2 clang-format: Fix regression introduced by r237565.
Before:
  class C : public D {
    SomeClass SC { 2 };
  };

After:
  class C : public D {
    SomeClass SC{2};
  };

llvm-svn: 237568
2015-05-18 14:12:24 +00:00
Daniel Jasper
47bbda0939 clang-format: Improve detection of macros annotating functions.
Before:
  ASSERT("aaaaaaaaaaaaaaa")
      << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
      << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;

After:
  ASSERT("aaaaaaaaaaaaaaa") << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
                            << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;

Also cleanup implementation a bit and only mark closing parenthesis of
these annotations.

llvm-svn: 237567
2015-05-18 13:47:23 +00:00
Daniel Jasper
adba2aadf2 clang-format: Allow braced initializers in template arguments of class
specializations.

Before:
  template <class T>
      struct S < std::is_arithmetic<T> {
  } > {};

After:
  template <class T> struct S<std::is_arithmetic<T>{}> {};

llvm-svn: 237565
2015-05-18 12:52:00 +00:00
Daniel Jasper
f090f031bc clang-format: Support function annotations in macros.
Before:
  DEPRECATED("Use NewClass::NewFunction instead.") string
      OldFunction(const string &parameter) {}

After:
  DEPRECATED("Use NewClass::NewFunction instead.")
  string OldFunction(const string &parameter) {}

llvm-svn: 237562
2015-05-18 09:47:22 +00:00
Daniel Jasper
0928553eec clang-format: Properly align ObjC string literals.
Before:
  NSString s = @"a"
               "b"
               "c";
  NSString s = @"a"
               @"b"
                @"c";

After:
  NSString s = @"a"
                "b"
                "c";
  NSString s = @"a"
               @"b"
               @"c";

This fixes llvm.org/PR23536.

llvm-svn: 237538
2015-05-17 08:13:23 +00:00
Daniel Jasper
2fd16632bc clang-format: Improve line wrapping around << operators.
Generally, clang-format tries to keep label-value pairs on a single
line for stream operators. However, we should not do that if there is
just a single such pair, as that doesn't help much.

Before:
  llvm::errs() << "aaaaaaaaaaaa: " << aaaaaaa(aaaaaaaaa,
                                              aaaaaaaaa);

After:
  llvm::errs() << "aaaaaaaaaaaa: "
               << aaaaaaa(aaaaaaaaa, aaaaaaaaa);

Also remove old test case that was testing actual behavior any more.

llvm-svn: 237535
2015-05-17 07:27:09 +00:00
Daniel Jasper
3ca283ada3 clang-format: Slightly change format decisions around macro annotations.
Before:
  bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
      GUARDED_BY(aaaaaaaaaaaa) = aaaaaaaaaaaaaaaaaaaaaaaaa;

After:
  bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa GUARDED_BY(aaaaaaaaaaaa) =
      aaaaaaaaaaaaaaaaaaaaaaaaa;

llvm-svn: 237430
2015-05-15 09:58:11 +00:00
Daniel Jasper
731dde91db clang-format: Don't use column layout in lists that have separating
comments. At some point, we might to want to a layout with a different
number of columns instead, but at the moment, this causes more
confusion than it's worth.

llvm-svn: 237427
2015-05-15 09:41:59 +00:00
Daniel Jasper
cdb58b2e45 clang-format: Add missing space before ObjC selector.
Before:
  [self aaaaa:(1 + 2)bbbbb:3];

After:
  [self aaaaa:(1 + 2) bbbbb:3];

llvm-svn: 237424
2015-05-15 09:05:31 +00:00
Daniel Jasper
c4144ea418 clang-format: Improve nested block / lambda indentation when wrapping
before binary/ternary operators.

Basically, it doesn't seem right to indent a nested block aligned to a
binary or ternary operator.

Before:
  int i = aaaaaa ? 1  //
                 : [] {
                   return 2;  //
                 }();
  llvm::errs() << "number of twos is "
               << std::count_if(v.begin(), v.end(), [](int x) {
                 return x == 2;  // force break
               });

After:
  int i = aaaaaa ? 1  //
                 : [] {
                     return 2;  //
                   }();
  llvm::errs() << "number of twos is "
               << std::count_if(v.begin(), v.end(), [](int x) {
                    return x == 2;  // force break
                  });

llvm-svn: 237263
2015-05-13 16:09:21 +00:00
Daniel Jasper
3a26a8db5d clang-format: Fix incorrect */& classification.
Before:
  void f() { f(new a(), c *d); }

After:
  void f() { f(new a(), c * d); }

llvm-svn: 237249
2015-05-13 12:54:30 +00:00
Daniel Jasper
e60cba1337 clang-format: Fix semicolon less macro-detection.
It was fooled by the comment.

Before:
  SOME_UNRELATED_MACRO
      /*static*/ int i;

After:
  SOME_UNRELATED_MACRO
  /*static*/ int i;

llvm-svn: 237246
2015-05-13 11:35:53 +00:00
Daniel Jasper
a7b142603d clang-format: [ObjC] Further improve wrapping of methods calls without inputs.
Before:
  [aaaaaaaaaaaaaaaaaaaaaaa
      .aaaaaaaa[aaaaaaaaaaaaaaaaaaaaa] aaaaaaaaaaaaaaaaaaaaaa];

After:
  [aaaaaaaaaaaaaaaaaaaaaaa.aaaaaaaa[aaaaaaaaaaaaaaaaaaaaa]
      aaaaaaaaaaaaaaaaaaaaaa];

llvm-svn: 237244
2015-05-13 10:23:03 +00:00
Daniel Jasper
a2a4d9c049 clang-format: [ObjC] Make IndentWrappedFunctionNames work with ObjC functions
llvm-svn: 237241
2015-05-13 09:38:25 +00:00
Daniel Jasper
0ad2814c89 clang-format: Prefer formatting local lambdas like functions.
Before:
  auto my_lambda =
      [](const string &some_parameter) { return some_parameter.size(); };

After:
  auto my_lambda = [](const string &some_parameter) {
    return some_parameter.size();
  };

llvm-svn: 237235
2015-05-13 08:47:16 +00:00
Daniel Jasper
60c270764e clang-format: Support column layout with comment after {.
Before:
  vector<int> iiiiiiiiiiiiiii = {                      //
      1111111111, 2222222222, 33333333333, 4444444444, //
      111111111, 222222222, 3333333333, 444444444,     //
      11111111, 22222222, 333333333, 44444444};

After:
  vector<int> iiiiiiiiiiiiiii = {                      //
      1111111111, 2222222222, 33333333333, 4444444444, //
      111111111,  222222222,  3333333333,  444444444,  //
      11111111,   22222222,   333333333,   44444444};

llvm-svn: 237233
2015-05-13 08:16:00 +00:00
Daniel Jasper
99b5a4648c clang-format: Fix */& detection for lambdas in macros.
Before:
  #define MACRO() [](A * a) { return 1; }

After:
  #define MACRO() [](A *a) { return 1; }

llvm-svn: 237109
2015-05-12 10:20:32 +00:00
Daniel Jasper
5fc133e71e clang-format: Fix hanging nested blocks in macros.
Before:
  #define MACRO()                     \
    Debug(aaa, /* force line break */ \
          {                           \
      int i;                          \
      int j;                          \
          })

After:
  #define MACRO()                     \
    Debug(aaa, /* force line break */ \
          {                           \
            int i;                    \
            int j;                    \
          })

llvm-svn: 237108
2015-05-12 10:16:02 +00:00
Manuel Klimek
3d3ea84a4f Refactor clang-format's formatter.
Summary:
a) Pull out a class LevelIndentTracker whose responsibility is to keep track
   of the indent of levels across multiple annotated lines.
b) Put all responsibility for merging lines into the LineJoiner; make the
   LineJoiner iterate over the lines so we never operate on a line that might
   be merged later; this makes the interface safer to use.
c) Move formatting of the end-of-file whitespace into formatFirstToken.

Fix bugs that became obvious after the refactoring:
1. We would not format lines with offsets correctly inside nested blocks if
   only the outer expression was affected:
   int x = s({ // clang-format only this line
     class X {
       public:
    // ^ this starts at the non-modified indnent level; previously we would
    //   not fix this, now we correctly outdent it.
       void f();
     };
   });
2. We would incorrectly align comments across lines that do not have comments
   for lines with nested blocks:
   int expression; // with comment
   int x = s({
     int y; // comment
     int z; // we would incorrectly align this comment with the comment on
            // 'expression'
   });

llvm-svn: 237104
2015-05-12 09:23:57 +00:00
Daniel Jasper
015c7a91f1 clang-format: Support aligning ObjC string literals.
Before:
  NSString s = @"aaaa"
      @"bbbb";

After:
  NSString s = @"aaaa"
               @"bbbb";

llvm-svn: 237000
2015-05-11 15:15:48 +00:00
Daniel Jasper
d57843d4e3 clang-format: Improve column layout.
Specifically, calculate the deviation between the shortest and longest
element (which is used to prevent excessive whitespace) per column, not
overall. This automatically handles the corner cases of a single column
and a single row so that the actualy implementation becomes simpler.

Before:
  vector<int> x = {1,
                   aaaaaaaaaaaaaaaaaaaaaa,
                   2,
                   bbbbbbbbbbbbbbbbbbbbbb,
                   3,
                   cccccccccccccccccccccc};

After:
  vector<int> x = {1, aaaaaaaaaaaaaaaaaaaaaa,
                   2, bbbbbbbbbbbbbbbbbbbbbb,
                   3, cccccccccccccccccccccc};

llvm-svn: 236992
2015-05-11 13:35:40 +00:00
Daniel Jasper
790d4f975e clang-format: Don't merge subsequent lines into _asm blocks.
Before:
  _asm {
  } int i;

After:
  _asm {
  }
  int i;

llvm-svn: 236985
2015-05-11 11:59:46 +00:00
Daniel Jasper
173504e494 clang-format: Improve wrapping of << operators.
Before:
  llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
                     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
                      aaaaaaaaaaaaaaaa) << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;

After:
  llvm::errs() << aaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
                      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
                      aaaaaaaaaaaaaaaa)
               << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;

Also, cleanup and simplify the operator wrapping logic.

llvm-svn: 236960
2015-05-10 21:15:07 +00:00
Daniel Jasper
c6366077ed clang-format: Preserve line break before } in __asm { ... }.
Some compilers ignore everything after a semicolon in such inline asm
blocks and thus, the closing brace must not be moved to the previous
line.

llvm-svn: 236946
2015-05-10 08:42:04 +00:00
Daniel Jasper
f0fd1c66df clang-format: Fix bug in escaped newline calculation.
This prevents clang-format from inadvertently joining stuff into macro
definitions as reported in llvm.org/PR23466.

llvm-svn: 236944
2015-05-10 08:00:25 +00:00
Daniel Jasper
e4c16c7ce3 clang-format: Several improvements around formatting braced lists.
In particular:
* If the difference between the longest and shortest element, we copped
  out of column format completely. Now, we instead allow to arrange
  these in a single column, essentially enforcing a one-per-line format.
* Allow column layout even if there are braced lists. Especially, if
  there are many short lists, this can be beneficial. The bad case,
  where there is a long nested init list is usually caught as we now
  limit the length difference of the longest and shortest element.

llvm-svn: 236851
2015-05-08 13:51:14 +00:00
Daniel Jasper
9c95013e8f clang-format: Improve r236597, Properly indent method calls without inputs.
Before:
  [aaaaaaaaaaaa(aaaaaa)
          aaaaaaaaaaaaaaaaaaaa];

After:
  [aaaaaaaaaaaa(aaaaaa)
      aaaaaaaaaaaaaaaaaaaa];

llvm-svn: 236730
2015-05-07 14:19:59 +00:00
Manuel Klimek
ec5c3db7ac Implements a way to retrieve information about whether some lines were not formatted due to syntax errors.
llvm-svn: 236722
2015-05-07 12:26:30 +00:00
Daniel Jasper
036181471c clang-format: Don't indent 'signals' as access specifier if it isn't one
Before:
  {
  signals.set(0);
  }

After:
  {
    signals.set(0);
  }

llvm-svn: 236630
2015-05-06 19:21:23 +00:00
Daniel Jasper
1fe0d5ca59 clang-format: Merge labels and subsequent semicolons.
E.g.:

  default:;

This can be used to get around restrictions as to what can follow a
label. It fixes llvm.org/PR19648.

llvm-svn: 236604
2015-05-06 15:19:47 +00:00
Daniel Jasper
112b50e6b6 clang-format: Allow ternary expressions inside template parameters if
the template parameters aren't inside an expression context.

This fixes llvm.org/PR23270.

llvm-svn: 236603
2015-05-06 14:53:50 +00:00
Daniel Jasper
e92bf6f141 clang-format: Consider operator precedence as penalty when breaking
before operators.

This fixes llvm.org/23382.

llvm-svn: 236602
2015-05-06 14:23:38 +00:00
Daniel Jasper
04785d0488 clang-format: Accept slightly more record declarations.
This fixes llvm.org/PR23397.

llvm-svn: 236599
2015-05-06 14:03:02 +00:00
Daniel Jasper
2746a308c2 clang-format: Fix bad wrapping of ObjC method exprs.
Before:
  [aaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaa:
      aaaaaaaa aaa:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];

After:
  [aaaaaaaaaaaaaaaaaaaaaaaaa
      aaaaaaaaaaaaaaaaa:aaaaaaaa
                    aaa:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa];

Note that this might now violate the column limit and we probably need an
alternative way of indenting these then. However, that is still strictly better
than the messy formatting that clang-format did before.

llvm-svn: 236598
2015-05-06 13:13:03 +00:00
Daniel Jasper
eb53668c35 clang-format: Properly indent method calls without inputs.
Before:
  [aaaaaaaaaaa
          aaaaaaa];

After:
  [aaaaaaaaaaa
      aaaaaaa];

llvm-svn: 236597
2015-05-06 12:48:06 +00:00
Daniel Jasper
e2408e37db clang-format: Fix another assertion discovered by the fuzzer.
In the process, fix an old todo that I don't really know how to write
tests for. The problem is that Clang's lexer creates very strange token
sequences for these. However, the new approach seems generally better
and easier to read so I am submitting it nonetheless.

llvm-svn: 236589
2015-05-06 11:16:43 +00:00
Daniel Jasper
62c78f5474 clang-format: Prevent assertion discovered by fuzzer.
llvm-svn: 236578
2015-05-06 08:58:57 +00:00
Daniel Jasper
4d9ec17f1e clang-format: Prevent exponential runtime in token annotator.
llvm-svn: 236577
2015-05-06 08:38:24 +00:00
Daniel Jasper
6d9b88dd99 clang-format: Fix bug in multiline comment wrapping.
Splitting:
  /**
   * multiline block comment
   *
   */

Before:
  /**
   * multiline block
   *comment
   *
   */

After:
  /**
   * multiline block
   * comment
   *
   */

The reason was that the empty line inside the comment (with just the "*") was
confusing the comment breaking logic.

llvm-svn: 236573
2015-05-06 07:17:22 +00:00
Daniel Jasper
de7ca75ca0 clang-format: Force aligning different brackets relative to each other.
Before:
  void SomeFunction(vector< // break
      int> v);

After:
  void SomeFunction(vector< // break
                        int> v);

llvm-svn: 236412
2015-05-04 07:39:00 +00:00
Daniel Jasper
e9f5357f49 clang-format: Don't merge short else blocks.
Before (with the appropriate flags settings):
  if (a) {
    f();
  } else { g(); }

Before (with other appropriate flags settings):
  if (a) { f(); } else {
    g();
  }

After:
  if (a) {
    f();
  } else {
    g();
  }

llvm-svn: 236217
2015-04-30 09:24:17 +00:00
Daniel Jasper
a4499133b1 clang-format: Add ability to align assignment operators.
In Objective-C some style guides use a style where assignment operators are
aligned, in an effort to increase code readability. This patch adds an option
to the format library which allows this functionality. It is disabled by
default for all the included styles, so it must be explicitly enabled.

The option will change code such as:
  - (void)method {
      NSNumber *one = @1;
      NSNumber *twentyFive = @25;
  }

to:
  - (void)method {
      NSNumber *one        = @1;
      NSNumber *twentyFive = @25;
  }

Patch by Matt Oakes. Thank you!

Accidentally reformatted all the tests...

llvm-svn: 236100
2015-04-29 13:06:49 +00:00
Daniel Jasper
eb45cb7cf9 clang-format: Fix selective indentaiton in nested blocks.
Buggy case:
  someFunction(
      [] {
        // comment
        int i; // invoke formatting here.
      },       // force line break
      aaa);

llvm-svn: 236091
2015-04-29 08:29:26 +00:00
Daniel Jasper
775954be1e clang-format: Don't wrap after short first segments of builder calls.
Before:
  a()
      .aaaaa()
      .aaaaa()
      .aaaaa();

After:
  a().aaaaa()
      .aaaaa()
      .aaaaa();

llvm-svn: 235707
2015-04-24 10:08:09 +00:00
Daniel Jasper
de0d1f3c26 clang-format: More selectively detect QT's "signals".
llvm-svn: 235702
2015-04-24 07:50:34 +00:00
Daniel Jasper
0faa9136fa clang-format: Properly detect variable declarations with ObjC.
Before:
  LoooooooooooooooooooooooooooooooooooooooongType
  LoooooooooooooooooooooooooooooooooooooongVariable([A a]);

After:
  LoooooooooooooooooooooooooooooooooooooooongType
      LoooooooooooooooooooooooooooooooooooooongVariable([A a]);

llvm-svn: 235599
2015-04-23 13:58:40 +00:00
Daniel Jasper
caf84fe21e clang-format: Allow splitting "= default" and "= delete".
Otherwise, this can violate the column limit.

llvm-svn: 235592
2015-04-23 12:59:09 +00:00
Daniel Jasper
532a031422 clang-format: Don't add unwanted space when creating new arrays.
Before:
  char** newargv = new char* [argc];

After:
  char** newargv = new char*[argc];

llvm-svn: 235583
2015-04-23 10:23:53 +00:00