Commit Graph

22 Commits

Author SHA1 Message Date
Daniel Jasper e285b8dd2e clang-format: NFC. Add a function to test whether an annotated line
starts with a given sequence of tokens. Only the one-token version is
used yet, but other usages are coming up momentarily.

llvm-svn: 239892
2015-06-17 09:43:56 +00:00
Daniel Jasper 20580fd5d3 clang-format: Make SFS_Inline imply SFS_Empty.
In the long run, these two might be independent or we might to only
allow specific combinations. Until we have a corresponding request,
however, it is hard to do the right thing and choose the right
configuration options. Thus, just don't touch the options yet and
just modify the behavior slightly.

llvm-svn: 239531
2015-06-11 13:31:45 +00:00
Manuel Klimek f0c95b32ec Fix crash in clang-format.
The following example used to crash clang-format.
 #define a\
  /**/}

Adjusting the indentation level cache for the line starting with the
comment would lead to an out-of-bounds array read.

llvm-svn: 239521
2015-06-11 10:14:13 +00:00
Daniel Jasper 1a02822704 clang-format: Fix child-formatting in macros.
This fixes a case where the column limit was incorrectly calculated
leading to a macro like this:

  #define A                                       \
    [] {                                          \
      xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx(        \
          xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx); \
    }

exceeding the column limit.

llvm-svn: 238182
2015-05-26 07:03:42 +00:00
Daniel Jasper 56807c19ac clang-format: Make member introduced in r237108 const.
llvm-svn: 237114
2015-05-12 11:14:06 +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
Manuel Klimek d3585dbd1a Refactor the formatter of clang-format.
Pull various parts of the UnwrappedLineFormatter into their own
abstractions. NFC.

There are two things left for subsequent changes (to keep this
reasonably small)
- the UnwrappedLineFormatter now has a bad name
- the UnwrappedLineFormatter::format function is still too large

llvm-svn: 236974
2015-05-11 08:21:35 +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 2964749cfa clang-format: [JS] Do not collapse short interfaces.
Patch by Martin Probst.

llvm-svn: 236485
2015-05-05 08:12:50 +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 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 289afc071e clang-format: Support nested block formatting with ColumnLimit=0.
llvm-svn: 235580
2015-04-23 09:23:17 +00:00
Daniel Jasper 9ecb0e96b8 clang-format: Don't corrupt macros with open braces.
Formatting:
  #define A { {
  #define B } }

Before:
  #define A               \
    {                     \
      { #define B }       \
    }

After:
  #define A               \
    {                     \
      {
  #define B               \
    }                     \
    }

This fixes llvm.org/PR22884.

llvm-svn: 232166
2015-03-13 13:32:11 +00:00
Daniel Jasper ac5c97e36b clang-format: Don't remove newline if macro ends in access specifier.
I.e.:

  #define A public:

  // The new line before this line would be removed.
  int a;

llvm-svn: 231636
2015-03-09 08:13:55 +00:00
Nico Weber 33381f5e0b clang-format: Format Objective-C try blocks like all the other try blocks.
Before:

  @try {
    // ...
  }
  @finally {
    // ...
  }

Now:

  @try {
    // ...
  } @finally {
    // ...
  }

This is consistent with how we format C++ try blocks and SEH try blocks.
clang-format not doing this before was an implementation oversight.

This is dependent on BraceBreakingStyle.  The snippet above is with the
Attach style.  Style Stroustrip for example still results in the "Before:"
snippet, which makes sense since other blocks (try, else) break after '}' too.

llvm-svn: 228483
2015-02-07 01:57:32 +00:00
Nico Weber fac2371be3 clang-format: Add support for SEH __try / __except / __finally blocks.
This lets clang-format format

    __try {
    } __except(0) {
    }

and

    __try {
    } __finally {
    }

correctly. __try and __finally are keywords if `LangOpts.MicrosoftExt` is set,
so this turns this on.  This also enables a few other keywords, but it
shouldn't overly perturb regular clang-format operation.  __except is a
context-sensitive keyword, so `AdditionalKeywords` needs to be passed around to
a few more places.

Fixes PR22321.

llvm-svn: 228148
2015-02-04 15:26:27 +00:00
Daniel Jasper 47b35aeaa1 clang-format: Fix crasher caused by not properly setting dry-run.
llvm-svn: 227427
2015-01-29 10:47:14 +00:00
Daniel Jasper d1c13736e0 clang-format: Fix another crasher caused by incomplete macro code.
We did't properly mark all of an AnnotatedLine's children as finalized
and thus would reformat the same tokens in different branches of #if/#else
sequences leading to invalid replacements.

llvm-svn: 226930
2015-01-23 19:37:25 +00:00
NAKAMURA Takumi e9ac8b4d63 Exclude printLineState() in -Asserts. [-Wunused-function]
llvm-svn: 224430
2014-12-17 14:46:56 +00:00
Daniel Jasper 11a0ac66e1 clang-format: Revamp nested block formatting.
This fixed llvm.org/PR21804 and hopefully a few other strange cases.

Before:
    if (blah_blah(whatever, whatever, [] {
      doo_dah();
      doo_dah();
    })) {
    }
    }

After:
    if (blah_blah(whatever, whatever, [] {
          doo_dah();
          doo_dah();
        })) {
    }
    }

llvm-svn: 224112
2014-12-12 09:40:58 +00:00
Daniel Jasper 0df50938be clang-format: Factor out UnwrappedLineFormatter into a separate file.
No functional changes intended.

llvm-svn: 223936
2014-12-10 19:00:42 +00:00