Commit Graph

1200 Commits

Author SHA1 Message Date
Eric Liu 4cfb88a936 Added Fixer implementation and fix() interface in clang-format for removing redundant code.
Summary:
After applying replacements, redundant code like extra commas or empty namespaces
might be introduced. Fixer can detect and remove any redundant code introduced by replacements.
The current implementation only handles redundant commas.

Reviewers: djasper, klimek

Subscribers: ioeric, mprobst, klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D18551

llvm-svn: 267416
2016-04-25 15:09:22 +00:00
Daniel Jasper c3ff0cd8a2 clang-format: Improve heuristics to detect function declarations/definitions.
Specifically understand ellipses in parameter lists and treat trailing
reference qualifiers and the "{" as signals.

llvm-svn: 266599
2016-04-18 11:31:21 +00:00
Marianne Mailhot-Sarrasin 03137c6538 clang-format: Last line in incomplete block is indented incorrectly
Indentation of the last line was reset to the initial indentation of the block when reaching EOF.

Patch by Maxime Beaulieu

Differential Revision: http://reviews.llvm.org/D19065

llvm-svn: 266321
2016-04-14 14:56:49 +00:00
Marianne Mailhot-Sarrasin 51fe279fbb clang-format: Implemented tab usage for continuation and indentation
Use tabs to fill whitespace at the start of a line.

Patch by Maxime Beaulieu

Differential Revision: http://reviews.llvm.org/D19028

llvm-svn: 266320
2016-04-14 14:52:26 +00:00
Daniel Jasper 2cce7b728b clang-format: Fix label-in-if statement in macros where it is actually used.
Before:
  #define A \
    if (a)  \
    label:  \
    f()

After:
  #define A \
    if (a)  \
    label:  \
      f()

llvm-svn: 265557
2016-04-06 16:41:39 +00:00
Daniel Jasper 4060947289 clang-format: Support labels in brace-less ifs.
While I am not personally convinced about the usefulness of this
construct, we should break it.

Before:
  if (a) label:
  f();

After:
  if (a)
  label:
    f();

llvm-svn: 265545
2016-04-06 15:02:46 +00:00
Daniel Jasper 19bc1d007a clang-format: Fix incorrect function annotation detection.
Before:
  MACRO(
      abc).function() // wrap
      << abc;

After:
  MACRO(abc).function() // wrap
      << abc;

llvm-svn: 265540
2016-04-06 13:58:09 +00:00
Daniel Jasper 94b1bdf91a clang-format: Fix cast detection on "this".
Before:
  auto x = (X) this;

After:
  auto x = (X)this;

This fixes llvm.org/PR27198.

llvm-svn: 265385
2016-04-05 11:46:06 +00:00
Eric Liu 4c1ef97adb Added formatAndApplyAllReplacements that works on multiple files in libTooling.
Summary:
formatAndApplyAllReplacements takes a set of Replacements, applies them on a
Rewriter, and reformats the changed code.

Reviewers: klimek, djasper

Subscribers: ioeric, klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D17852

llvm-svn: 264745
2016-03-29 16:31:53 +00:00
Eric Liu c13ca6a950 Dsiable FormatStyle::GetStyleOfFile test case for mingw.
llvm-svn: 264289
2016-03-24 14:59:39 +00:00
Eric Liu 547d87912a Added support for different VFSs in format::getStyle. Disable platform-related test case for MS compilers to avoid breaking buildbot.
llvm-svn: 264277
2016-03-24 13:22:42 +00:00
Eric Liu 6b47faad53 Revert "Added support for different VFSs in format::getStyle."
This reverts commit r264253. It is breaking the buildbot http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/2203

llvm-svn: 264257
2016-03-24 11:25:28 +00:00
Eric Liu b72f6098df Added support for different VFSs in format::getStyle.
Summary:
Previously, format::getStyle assumes that the given file resides in
the real file system, which prevents the use of virtual file system in testing etc.
This patch adds a parameter in format::getStyle interface so that users can specify
the right file system. By default, the file system is the real file system.

Reviewers: djasper, klimek

Subscribers: cfe-commits, klimek

Differential Revision: http://reviews.llvm.org/D18399

llvm-svn: 264253
2016-03-24 10:50:17 +00:00
Daniel Jasper 9c8ff3551a clang-format: Make include sorting's main include detection configurable.
This patch adds a regular expression to configure suffixes of an
included file to check whether it is the "main" include of the current
file. Previously, clang-format has allowed arbitrary suffixes on the
formatted file, which is still the case when no IncludeMainRegex is
specified.

llvm-svn: 263943
2016-03-21 14:11:27 +00:00
Daniel Jasper 710f8493c8 clang-format: Slightly weaken AlignAfterOpenBracket=AlwaysBreak.
If a call takes a single argument, using AlwaysBreak can lead to lots
of wasted lines and additional indentation without improving the
readability in a significant way.

Before:
  caaaaaaaaaaaall(
      caaaaaaaaaaaall(
          caaaaaaaaaaaall(
              caaaaaaaaaaaaaaaaaaaaaaall(aaaaaaaaaaaaaa, aaaaaaaaa))));

After:
  caaaaaaaaaaaall(caaaaaaaaaaaall(caaaaaaaaaaaall(
      caaaaaaaaaaaaaaaaaaaaaaall(aaaaaaaaaaaaaa, aaaaaaaaa))));

llvm-svn: 263709
2016-03-17 12:00:22 +00:00
Daniel Jasper abd1f57453 clang-format: [JS] Optionally re-quote string literals.
Turns "foo" into 'foo' (or vice versa, depending on configuration).
This makes it more convenient to follow the Google JavaScript style
guide:
https://google.github.io/styleguide/javascriptguide.xml?showone=Strings#Strings

This functionality is behind the option "JavaScriptQuotes", which can be:

  * "leave" (no re-quoting)
  * "single" (change to single quotes)
  * "double" (change to double quotes)

This also changes single quoted JavaScript string literals to be treated
as tok::string_literal, not tok::char_literal, which fixes two unrelated
tests.

Patch by Martin Probst. Thank you.

llvm-svn: 262534
2016-03-02 22:44:03 +00:00
Daniel Jasper 56ef6aca2b [clang-format] Detect constructor initializers preceded by `noexcept`.
Patch by Erik Kessler, thank you.

llvm-svn: 262402
2016-03-01 21:41:58 +00:00
Manuel Klimek b12e5a5ccd Add functions to apply replacements and reformat them.
This is a commonly useful feature to have, and we have implemented it
multiple times with different kinds of bugs. This implementation
centralizes the idea in a set of functions that we can then use from the various
tools.

Reverts r262234, which is a revert of r262232, and puts the functions
into FOrmat.h, as they are closely coupled to clang-format, and we
otherwise introduce a cyclic dependency between libFormat and
libTooling.

Patch by Eric Liu.

llvm-svn: 262323
2016-03-01 12:37:30 +00:00
Daniel Jasper 04b4e10873 clang-format: Correctly apply wrap before multi-line RHS rule to
ternary expressions.

Before:
  return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ? aaaaa : bbbbbbbbbbbbbbb +
							     cccccccccccccccc;

After:
  return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?
	     aaaaa :
	     bbbbbbbbbbbbbbb + cccccccccccccccc;

llvm-svn: 262293
2016-03-01 04:19:59 +00:00
Daniel Jasper f9168de892 clang-format: Increase the penalty for breaking between array subscripts.
Before:
  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaaaaaaaa]
                                    [a].aaaaaaaaaaaaaaaaaaaaaa();

After:
  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaaaaaaaaaaaa][a]
      .aaaaaaaaaaaaaaaaaaaaaa();

llvm-svn: 262292
2016-03-01 04:19:55 +00:00
Richard Trieu cc3949d99a Remove use of builtin comma operator.
Cleanup for upcoming Clang warning -Wcomma.  No functionality change intended.

llvm-svn: 261271
2016-02-18 22:34:54 +00:00
Daniel Jasper 602a727add clang-format: Make indentation after "<<" more consistent.
Before:
  Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)
      << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
	  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);
  Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)
      << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
	     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
      << aaa;

After:
  Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)
      << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
	     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);
  Diag(aaaaaaaaaaaaaaaaaaaa, aaaaaaaa)
      << aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
	     aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
      << aaa;

llvm-svn: 260517
2016-02-11 13:15:14 +00:00
Daniel Jasper 88db760e4b clang-format: Make it more expensive to break template parameters.
In particular, make it more expensive than breaking after the return
type of a function definition/declaration.

Before:
  template <typename T>
  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaa<
      T>::aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaa);

After:
  template <typename T>
  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
  aaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaaaaa(
      aaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaa);

llvm-svn: 260497
2016-02-11 06:43:01 +00:00
Daniel Jasper 2a9f720129 clang-format: Fix weird alignment when not aligning after brackets.
Before:
  bbbbbbbbbbbb(aaaaaaaaaaaaaaaaaaaaaaaa, //
      ccccccc(aaaaaaaaaaaaaaaaa, //
	           b));

After:
  bbbbbbbbbbbb(aaaaaaaaaaaaaaaaaaaaaaaa, //
      ccccccc(aaaaaaaaaaaaaaaaa, //
     	  b));

This fixes llvm.org/PR24905.

llvm-svn: 260080
2016-02-08 09:52:54 +00:00
Daniel Jasper 0c9772e874 clang-format: Fix corner case in template detection.
Before:
  f(a.operator() < A > ());

After:
  f(a.operator()<A>());

llvm-svn: 259884
2016-02-05 14:17:16 +00:00
Daniel Jasper 45860fac37 clang-format: Fix formatting of ternary expressions with comments.
Before:
  int i = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?
	      /*bbbbbbbbbbbbbbbbbbbb=*/bbbbbbbbbbbbbbbbbbbbbbbbb :
				       ccccccccccccccccccccccccccc;

After:
  int i = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ?
	      /*bbbbbbbbbbbbbbbbbbbb=*/bbbbbbbbbbbbbbbbbbbbbbbbb :
              ccccccccccccccccccccccccccc;

llvm-svn: 259670
2016-02-03 17:27:10 +00:00
Daniel Jasper b618a98582 clang-format: Make AlignAfterOpenBracket also affect angle brackets.
Patch by Matthew Whitehead, thank you.

llvm-svn: 259487
2016-02-02 10:28:11 +00:00
Daniel Jasper d27df3dd3d clang-format: Fix incorrect pointer detection in lambdas in constructor
initializers.

Before:
  Constructor() : member([](A *a, B * b) {}) {}

After:
  Constructor() : member([](A *a, B *b) {}) {}

llvm-svn: 259353
2016-02-01 11:21:07 +00:00
Daniel Jasper e1a7b76338 clang-format: Add option to disable string literal formatting.
llvm-svn: 259352
2016-02-01 11:21:02 +00:00
Daniel Jasper bb37a2f6f3 clang-format: Fix alignment of trailing multiline columns.
llvm-svn: 259351
2016-02-01 11:20:55 +00:00
Manuel Klimek 27f278186d Fix formatting of fully qualified names in array subscripts.
Before:
  a[ :🅱️:c];

After:
  a[:🅱️:c];

llvm-svn: 258123
2016-01-19 14:05:32 +00:00
Daniel Jasper a3cd216483 clang-format: Fix incorrectly enforced linebreak with ColumnLimit 0.
Before:
  aaaa[bbbb]
      .cccc();

After:
  aaaa[bbbb].cccc();

llvm-svn: 257763
2016-01-14 13:36:46 +00:00
Daniel Jasper 50780ce110 clang-format: [ObjC+JS] Allow bin-packing of array literals.
After reading the style guides again, they don't actually say how to
pack or not pack array literals. Based on some user reports, array
initializers can unnecessarily get quite long if they contain many
small elements. Array literals with trailing commas are still formatted
one per line so that users have a way to opt out of the packing.

Before:
  var array = [
    aaaaaa,
    aaaaaa,
    aaaaaa,
    aaaaaa,
    aaaaaa,
    aaaaaa,
    aaaaaa,
    aaaaaa,
    aaaaaa,
    aaaaaa
  ];

After:
  var array = [
    aaaaaa, aaaaaa, aaaaaa, aaaaaa, aaaaaa, aaaaaa, aaaaaa, aaaaaa, aaaaaa,
    aaaaaa, aaaaaa
  ];

llvm-svn: 257615
2016-01-13 16:41:34 +00:00
Benjamin Kramer dab50463d0 [clang-format] Fix comment aligning when there are changes within the comment
As soon as a comment had whitespace changes inside of the token, we
couldn't identify the whole comment as a trailing comment anymore and
alignment stopped working. Add a new boolean to Change for this special
case and fix trailing comment identification to use it.

This also changes WhitespaceManager to sum the length of all Changes
inside of a token into the first Change.

Before this fix

  int xy;  // a
  int z;   //b

became

  int xy;  // a
  int z;  // b

with this patch we immediately get to:

  int xy;  // a
  int z;   // b

Differential Revision: http://reviews.llvm.org/D16058

llvm-svn: 257341
2016-01-11 16:27:16 +00:00
Daniel Jasper df51f2e634 clang-format: Fix overloading "operator," definitions more thoroughly.
Before:
  aaaaaaaaaaaaaaaaaaaaaa operator,(aaaaaaaaaaaaaaaaaaaaa &
                                   aaaaaaaaaaaaaaaaaaaaaaaaaa) const;
After:
  aaaaaaaaaaaaaaaaaaaaaa operator,(
      aaaaaaaaaaaaaaaaaaaaa &aaaaaaaaaaaaaaaaaaaaaaaaaa) const;

llvm-svn: 257330
2016-01-11 12:55:33 +00:00
Daniel Jasper 06ca0fc69d clang-format: Slightly row back on r257257.
r257257 change the way clang-format enforces line breaks after a
templated type has been line-wrapped. This was to fix an incorrect line
break if BinPackParameters is set to false. However, it also leads to
an unwanted line break in a different case. Thus, for now, only do this
when BinPackParameters is false. This isn't ideal yet, but helps us
until we have a better solution.

With BinPackParameters:
Before:
  void fffffffffff(aaaaaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaa,
                                               aaaaaaaaaa> aaaaaaaaaa);

After:
  void fffffffffff(
      aaaaaaaaaaaaaaaaaaaaaaaaaaa<aaaaaaaaaaaaaaaaaaaaaaa, aaaaaaaaaa>
          aaaaaaaaaa);

llvm-svn: 257325
2016-01-11 11:01:05 +00:00
Daniel Jasper 00693b08cf clang-format: Fix incorrect line break in certain configurations.
Before:
  void aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa,
                          vector<int>
                              bbbbbbbbbbbbbbb);

After:
  void aaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa,
                          vector<int> bbbbbbbbbbbbbbb);

llvm-svn: 257257
2016-01-09 15:56:47 +00:00
Daniel Jasper 804a276fcf clang-format: Support definitions/declarations of operator,.
Before:
  bool operator, ();

After:
  bool operator,();

llvm-svn: 257256
2016-01-09 15:56:40 +00:00
Daniel Jasper 7bec87c998 clang-format: Fix corner case in one-per-line formatting.
Before (example is JS, but also applies to C++):
  return [
    aaaa()
        .bbbbbbbb('A'),
    aaaa().bbbbbbbb('B'),
    aaaa().bbbbbbbb('C'),
  ];

After:
  return [
    aaaa().bbbbbbbb('A'),
    aaaa().bbbbbbbb('B'),
    aaaa().bbbbbbbb('C'),
  ];

llvm-svn: 257079
2016-01-07 18:11:54 +00:00
Daniel Jasper 54353dac75 clang-format: Support weird lambda macros.
Before:
  MACRO((AA & a) { return 1; });

After:
  MACRO((AA &a) { return 1; });

llvm-svn: 257062
2016-01-07 14:36:11 +00:00
Daniel Jasper 411af72e8c clang-format: Fix corner case in "if it saves columns"-calculation.
Before:
  aaaa
      .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
	  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
      .aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

After:
  aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
	  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
      .aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 256841
2016-01-05 16:10:39 +00:00
Daniel Jasper 0a589416e8 clang-format: Handle \n the same way as std::endl with stream operator.
clang-format breaks multi-line streams after std::endl.
It now also break for '\n', the suggested replacement for std::endl:

  http://llvm.org/docs/CodingStandards.html#avoid-std-endl

Before:
  llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << '\n' << bbbbbbbbbbbbbbbbbbbbbb
               << '\n';
  llvm::errs() << aaaa << "aaaaaaaaaaaaaaaaaa\n" << bbbb
               << "bbbbbbbbbbbbbbbbbb\n";

After:
  llvm::errs() << aaaaaaaaaaaaaaaaaaaaaa << '\n'
               << bbbbbbbbbbbbbbbbbbbbbb << '\n';
  llvm::errs() << aaaa << "aaaaaaaaaaaaaaaaaa\n"
               << bbbb << "bbbbbbbbbbbbbbbbbb\n";

This changeset ensure that multiline streams have a line break after:
  - std::endl
  - '\n'
  - "\n"
  - "Some Text\n"

Patch by Jean-Philippe Dufraigne, thank you.

llvm-svn: 256832
2016-01-05 13:06:27 +00:00
Daniel Jasper 801cdb27e4 clang-format: Avoid creating hanging indents in call sequences.
Before:
  aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaa(
                      aaaaaaaaaaaaaaaaaaaa)
        .aaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

After:
  aaaaaaaaaaaaaaaa
        .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa)
        .aaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 256831
2016-01-05 13:03:59 +00:00
Daniel Jasper 00492f96bf clang-format: Improve line wrapping behavior in call sequences.
r256750 has been leading to an undesired behavior:

  aaaaaaaaaa
      .aaaaaaaaaaaaaaaaaaaaaaaa.aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

This change increases penalty for wrapping before member accesses that aren't
calls. Thus, this is again formatted as (as it has been before r256750):

  aaaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaaaa.aaaaaa(
      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 256830
2016-01-05 13:03:50 +00:00
Daniel Jasper 42011b2106 clang-format: Fix corner case in builder-type call formatting.
Before:
  return aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa,
						  aaaaaaaaaaaaaaaaa)
      .aaaa(aaaaaaaaaaaaaa);

After:
  return aaaaaaaaaaaaaaaa
      .aaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaa)
      .aaaa(aaaaaaaaaaaaaa);

llvm-svn: 256750
2016-01-04 12:41:11 +00:00
Daniel Jasper 55582073e4 clang-format: Align long braced init lists even if they are nested in
function calls.

llvm-svn: 256740
2016-01-04 07:30:44 +00:00
Daniel Jasper 9c8a774c48 clang-format: Fix corner case for lambda assignments.
Before:
  std::function<std::string(const std::string &)> my_lambda = [](
      const string &s) { return s; };

After:
  std::function<std::string(const std::string &)> my_lambda =
      [](const string &s) { return s; };

llvm-svn: 256739
2016-01-04 07:29:40 +00:00
Daniel Jasper 06a269574c clang-format: Fix corner-case in ObjC method declaration formatting
Before:
  - (void)shortf:(GTMFoo *)theFoo
     longKeyword:(NSRect)theRect
   longerKeyword:(float)theInterval
           error:(NSError **)theError {
  }

After:
  - (void)shortf:(GTMFoo *)theFoo
        longKeyword:(NSRect)theRect
      longerKeyword:(float)theInterval
              error:(NSError **)theError {
  }

llvm-svn: 256738
2016-01-04 07:29:07 +00:00
Daniel Jasper e1afb9b8ee clang-format: Slightly row back on r256343 by increasing penalty for
breaking between array subscripts.

Before:
  if (aaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaa]
                                                     [aaaaaaaaaaaaa])
After:
  if (aaaaaaaaaaaaaaaaaaaaaaaa &&
      aaaaaaaaaaaaaaaaaaa[aaaaaaaaaaaaa][aaaaaaaaaaaaa])

llvm-svn: 256640
2015-12-30 12:23:00 +00:00
Daniel Jasper a85c331e8f clang-format: Fix incorrect function type detection.
Before:
  int x = f (&h)();

After:
  int x = f(&h)();

llvm-svn: 256488
2015-12-28 07:44:25 +00:00