Commit Graph

307 Commits

Author SHA1 Message Date
Daniel Jasper d15b78b921 Remove accidentally introduced no-op line.
Was used during experiments, but another if-statements a few lines
before makes it (intentionally) useless.

llvm-svn: 175803
2013-02-21 21:40:48 +00:00
Daniel Jasper 12ef4e59ef Consistently put {} onto the same line for empty functions.
This fixes llvm.org/PR15167.

Before:
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL()
    : AAAAAAAA(10), BBBBBBBBB(10) {
}
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL() : AAAAAAAA(10) {}

After:
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL()
    : AAAAAAAA(10), BBBBBBBBB(10) {}
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL() : AAAAAAAA(10) {}

llvm-svn: 175800
2013-02-21 21:33:55 +00:00
Daniel Jasper 37905f711c Allow breaking between type and name in for loops.
This fixes llvm.org/PR15033.

Also: Always break before a parameter, if the previous parameter was
split over multiple lines. This was necessary to make the right
decisions in for-loops, almost always makes the code more readable and
also fixes llvm.org/PR14873.

Before:
for (llvm::ArrayRef<NamedDecl *>::iterator I = FD->getDeclsInPrototypeScope()
         .begin(), E = FD->getDeclsInPrototypeScope().end();
     I != E; ++I) {
}
foo(bar(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,
        ccccccccccccccccccccccccccccc), d, bar(e, f));

After:
for (llvm::ArrayRef<NamedDecl *>::iterator
         I = FD->getDeclsInPrototypeScope().begin(),
         E = FD->getDeclsInPrototypeScope().end();
     I != E; ++I) {
}
foo(bar(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,
        ccccccccccccccccccccccccccccc),
    d, bar(e, f));

llvm-svn: 175741
2013-02-21 15:00:29 +00:00
Manuel Klimek 0c91571d33 Fix regression in string literal alignment.
Now correctly indents (again):
a = a + "a"
        "a"
        "a";

llvm-svn: 175630
2013-02-20 15:32:58 +00:00
Manuel Klimek 02f640a3ab Fixes bug in string literal alignment.
We now indent the following correctly:
1. some + "literal" /* comment */
          "literal";
2. breaking string literals after which we have another string literal.

llvm-svn: 175628
2013-02-20 15:25:48 +00:00
Daniel Jasper dc7d5817e2 Don't remove blank lines within unwrapped lines.
If the code author decides to put empty lines anywhere into the code we
should treat them equally, i.e. reduce them to the configured
MaxEmptyLinesToKeep.

With this change, we e.g. keep the newline in:
SomeType ST = {
  // First value
  a,

  // Second value
  b
};

llvm-svn: 175620
2013-02-20 12:56:39 +00:00
Manuel Klimek 1998ea2c7e Implements breaking of string literals if they stick out.
An alternative strategy to calculating the break on demand when hitting
a token that would need to be broken would be to put all possible breaks
inside the token into the optimizer.

Currently only supports breaking at spaces; more break points to come.

llvm-svn: 175613
2013-02-20 10:15:13 +00:00
Daniel Jasper 6db1b7ca16 Add missing clang-format null pointer check..
.. and a test that triggers it in valid albeit questionable code.

llvm-svn: 175554
2013-02-19 20:05:41 +00:00
Daniel Jasper 0047596cb0 Correctly format macro with unfinished template declaration.
We can now format:
  #define A template <typename T>

Before this created a segfault :-/.

llvm-svn: 175533
2013-02-19 17:14:38 +00:00
Daniel Jasper 58f427ee41 Fix bug in LineState comparison function.
The key bug was

  if (Other.StartOfLineLevel < StartOfLineLevel) ..

instead of

  if (Other.StartOfLineLevel != StartOfLineLevel) ..

Also cleaned up the function to be more consistent in the comparisons.

llvm-svn: 175500
2013-02-19 09:28:55 +00:00
Daniel Jasper e53beb2647 Improve indentation of builder type calls.
In builder-type calls, it can be very confusing to just indent
parameters from the start of the line. Instead, indent 4 from the
correct function call.

Before:
aaaaaaaaaaaaaaaaaaa()->aaaaaa(bbbbb)->aaaaaaaaaaaaaaaaaaa( // break
    aaaaaaaaaaaaaa);
aaaaaaaaaaaaaaaaaaaaaaa *aaaaaaaaa = aaaaaa->aaaaaaaaaaaa()->aaaaaaaaaaaaaaaa(
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
    ->aaaaaaaaaaaaaaaaa();

After:
aaaaaaaaaaaaaaaaaaa()->aaaaaa(bbbbb)->aaaaaaaaaaaaaaaaaaa( // break
                                        aaaaaaaaaaaaaa);
aaaaaaaaaaaaaaaaaaaaaaa *aaaaaaaaa = aaaaaa->aaaaaaaaaaaa()
    ->aaaaaaaaaaaaaaaa(
        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
    ->aaaaaaaaaaaaaaaaa();

llvm-svn: 175444
2013-02-18 13:52:06 +00:00
Daniel Jasper 9ed9ade0ef Improve formatting of builder-type calls.
Before:
aaaaaaa->aaaaaaa->aaaaaaaaaaaaaaaa(
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)->aaaaaaaa(aaaaaaaaaaaaaaa);

After:
aaaaaaa->aaaaaaa
    ->aaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
    ->aaaaaaaa(aaaaaaaaaaaaaaa);

llvm-svn: 175441
2013-02-18 13:24:21 +00:00
Daniel Jasper 55d7ba6b66 Reformat lines if they were "moved around".
An unwrapped line can get moved around if there is no newline before
it and the previous line was formatted.

Example:

  template<typename T>  // Cursor is on this line when hitting "format"
  T *getFETokenInfo() const { return static_cast<T*>(FETokenInfo); }

"return .." is the second unwrapped line in this scenario. I does not
touch any reformatted region. Thus, the result of formatting is:

  template <typename T> T *getFETokenInfo() const { return static_cast<T *>(FETokenInfo); }

After second format (and arguably desired end-result):

  template <typename T> T *getFETokenInfo() const {
      return static_cast<T *>(FETokenInfo);
  }

This fixes: llvm.org/PR15060.

llvm-svn: 175440
2013-02-18 13:08:03 +00:00
Daniel Jasper 5065bc4b2c Correctly determine */& usage in more cases.
This fixes llvm.org/PR15248.

Before:
Test::Test(int b) : a(b *b) {}
for (int i = 0; i < a *a; ++i) {}

After:
Test::Test(int b) : a(b * b) {}
for (int i = 0; i < a * a; ++i) {}

llvm-svn: 175439
2013-02-18 12:44:35 +00:00
Daniel Jasper 2ec3ffb86e Always break after multi-line string literals.
Otherwise, other parameters can be quite hidden.
Reformatted unittests/Format/FormatTest.cpp after this.

Before:
someFunction("Always break between multi-line"
             " string literals", and, other, parameters);

After:
someFunction("Always break between multi-line"
             " string literals",
             and, other, parameters);

llvm-svn: 175436
2013-02-18 11:59:17 +00:00
Daniel Jasper 40c36c54ca Prevent line breaks that make stuff hard to read.
Before:
aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa).aaaaaaaaaaaaaaaaa(
    aaaaaaaaaaaaaaaaaaaaa).aaaaaaaaaaaaaaaaaaa(
    aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

After:
aaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)
    .aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaa)
    .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaa,
                         aaaaaaaaaaaaaaaaaaa,
                         aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 175432
2013-02-18 11:05:07 +00:00
Dmitri Gribenko 97499ed60e Use the correct type to hold enumeration values
llvm-svn: 175374
2013-02-16 20:03:26 +00:00
Daniel Jasper eb50c676ba Recognize < and > as binary expressions in builder-type calls.
The current heuristic assumes that there can't be binary operators in
builder-type calls (excluding assigments). However, it also excluded
< and > in general, which is wrong. Now they are only excluded if they
are template parameters.

Before:
return aaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa()i
       .aaaaaa() < aaaaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa();

After:
return aaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa() <
       aaaaaaaaaaaaaaaaaaa->aaaaa().aaaaaaaaaaaaa().aaaaaa();

llvm-svn: 175291
2013-02-15 20:33:06 +00:00
Daniel Jasper 0af92ebb20 Done break between 'operator' and '<<'.
Before:
ostream &operator
    <<(ostream &out, some::ns::SomeReallyLongType WithSomeReallyLongValue);

After:
ostream &operator<<(ostream &out,
                    some::ns::SomeReallyLongType WithSomeReallyLongValue);

llvm-svn: 175286
2013-02-15 19:24:08 +00:00
Daniel Jasper 23e8e0c7ea Re-enable ConstructorInitializerAllOnOneLineOrOnePerLine option.
This got lost and was untested as the same effect is achieved by
avoiding bin packing, which is active in Google style by default.
However, moving forward, we want more control over the bin packing
option(s) and thus, this flag should work as expected.

llvm-svn: 175277
2013-02-15 16:49:44 +00:00
Daniel Jasper 54a8602aef Prevent only breaking before "?" in conditional expressions.
This is almost always more readable.

Before:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    ? aaaaaaaaaaaaaaaaaaaaaaaaaaa : aaaaaaaaaaaaaaaaaaaaaaaaaaa;

After:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    ? aaaaaaaaaaaaaaaaaaaaaaaaaaa
    : aaaaaaaaaaaaaaaaaaaaaaaaaaa;

llvm-svn: 175262
2013-02-15 11:07:25 +00:00
Daniel Jasper e11095aff1 Fix counting of parameters so that r175162 works as expected.
Before:
aaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()
                              .aaaaaaaaaaaaaaaaa());

After:
aaaaaaaaaaaaaaaaaaaaaaaaa(
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa().aaaaaaaaaaaaaaaaa());

Not sure which of the formattings above is better, but we should not pick
one by accident.

llvm-svn: 175165
2013-02-14 15:01:34 +00:00
Daniel Jasper 687af3bb53 Reduce penalty for breaking before ./-> after complex calls.
This gives a clearer separation of the context, e.g. in GMOCK
statements.

Before:
EXPECT_CALL(SomeObject,
            SomeFunction(Parameter)).WillRepeatedly(Return(SomeValue));

After:
EXPECT_CALL(SomeObject, SomeFunction(Parameter))
    .WillRepeatedly(Return(SomeValue));

Minor format cleanups.

llvm-svn: 175162
2013-02-14 14:26:07 +00:00
Daniel Jasper 2457010b1c Remove the trailing whitespace of formatted lines.
So far, clang-format has always assumed the whitespace belonging to the
subsequent token. This has the negative side-effect that when
clang-format formats a line, it does not remove its trailing whitespace,
as it belongs to the next token.

Thus, this patch fixes most of llvm.org/PR15062.

We are not zapping a file's trailing whitespace so far, as this does not
belong to any token we see during formatting. We need to fix this in a
subsequent patch.

llvm-svn: 175152
2013-02-14 09:58:41 +00:00
Daniel Jasper 66e9dee707 Get less confused by trailing comma in Google style.
The formatter can now format:
void aaaaaaaaaaaaaaaaaa(int level,
                        double *min_x,
                        double *max_x,
                        double *min_y,
                        double *max_y,
                        double *min_z,
                        double *max_z, ) {
}

Although this is invalid code, it frequently happens during development and
clang-format should be nicer :-).

llvm-svn: 175151
2013-02-14 09:19:04 +00:00
Daniel Jasper eead02b1b5 Align superclasses for multiple inheritence.
This fixes llvm.org/PR15179.

Before:
class ColorChooserMac : public content::ColorChooser,
    public content::WebContentsObserver {
};

After:
class ColorChooserMac : public content::ColorChooser,
                        public content::WebContentsObserver {
};

llvm-svn: 175147
2013-02-14 08:42:54 +00:00
Daniel Jasper b9caeacd02 Allow breaking after the return type in function declarations.
This has so far been disabled for Google style, but should be done
before breaking at nested name specifiers or in template parameters.

Before (in Google style):
template <typename T>
aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa> aaaaaaaaaaaaaaaaaaaaaaaa<
    T>::aaaaaaa() {}

After:
template <typename T>
aaaaaaaa::aaaaa::aaaaaa<T, aaaaaaaaaaaaaaaaaaaaaaaaa>
aaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaa() {}

llvm-svn: 175074
2013-02-13 20:33:44 +00:00
Daniel Jasper 525264c369 Fix comment alignment close to the column limit.
Due to an error in one of the expressions, we used to not align comments
although it would have been possible.

llvm-svn: 175068
2013-02-13 19:25:54 +00:00
Manuel Klimek af491072ee Pull search state out as class members.
Fix some comments.

llvm-svn: 175052
2013-02-13 10:54:19 +00:00
Manuel Klimek 2ef908e4e2 An attempt to make the search algorithm easier to understand.
- clear ownership: the SpecificBumpPtrAllocator owns all StateNodes
- this allows us to simplify the memoization data structure into a
  std::set (FIXME: figure out whether we want to use a hash based
  data structure).
- introduces StateNode as recursive data structure, instead of using
  Edge and the Seen-map combined to drill through the graph
- using a count to stabilize the penalty instead of relying on the
  container
- pulled out a method to forward-apply states in the end

This leads to a ~40% runtime decrease on Nico's benchmark.

Main FiXME is that the parameter lists of some function get too long.
I'd vote for either pulling the Queue etc into the Formatter proper,
or creating an inner class just for the search algorithm.

llvm-svn: 175051
2013-02-13 10:46:36 +00:00
Nico Weber c6fe2165c9 Formatter: Refactor the cast detection code to be a bit more readable.
No functionality change. Also add another cast test.

llvm-svn: 175029
2013-02-13 04:13:13 +00:00
Nico Weber a789239c64 Formatter: Detect ObjC method expressions after casts.
Not all casts are correctly detected yet, but it helps in some cases.

llvm-svn: 175028
2013-02-13 03:48:27 +00:00
Dmitri Gribenko 64bbf7e5f3 Replace 'signed' with 'int'. 'signed' is not typical for LLVM style
llvm-svn: 175015
2013-02-12 22:40:22 +00:00
Daniel Jasper f52ab8d60c Fix crash for incomplete labels in macros.
Still the formatting can be improved, but at least we don't assert any
more. This happened when trying to format lib/Sema/SemaType.cpp.

llvm-svn: 175003
2013-02-12 20:17:17 +00:00
Aaron Ballman 396088cdb5 Fixing the MSVC compiler warning a different way; removed use of static_cast and instead used a signed integer parameter.
llvm-svn: 174996
2013-02-12 19:20:48 +00:00
Aaron Ballman cd9e4e6063 Removing a signed/unsigned mismatch warning triggered in MSVC 11.
llvm-svn: 174986
2013-02-12 18:39:15 +00:00
Daniel Jasper 2204562acd Fix bug in the adjustment to existing lines.
Before (if only the second line was reformatted):
void f() {}
          void g() {}

After:
void f() {}
void g() {}

llvm-svn: 174978
2013-02-12 16:51:23 +00:00
Nico Weber 4444917f5c Formatter: Correctly format stars in `sizeof(int**)` and similar places.
This redoes how '*' and '&' are classified as pointer / reference markers when
followed by ')', '>', or ','.

Previously, determineStarAmpUsage() marked a single '*' and '&' followed by
')', '>', or ',' as pointer or reference marker. Now, all '*'s and '&'s
preceding ')', '>', or ',' are marked as pointer / reference markers. Fixes
PR14884.

Since only the last '*' in 'int ***' was marked as pointer before (the rest
were unary operators, which don't reach spaceRequiredBetween()),
spaceRequiredBetween() now had to be thought about handing multiple '*'s in
sequence.

Before:
  return sizeof(int * *);
  Type **A = static_cast<Type * *>(P);

Now:
  return sizeof(int**);
  Type **A = static_cast<Type **>(P);

While here, also make all methods of AnnotatingParser except parseLine()
private.

Review URL: http://llvm-reviews.chandlerc.com/D384

llvm-svn: 174975
2013-02-12 16:17:07 +00:00
Nico Weber 29f9dea1ab Formatter: Detect ObjC message expressions after 'in' in loop
Before:
  for (id foo in[self getStuffFor : bla]) {
  }

Now:
  for (id foo in [self getStuffFor:bla]) {
  }

"in" is treated as loop keyword if the line starts with "for", and as a
regular identifier else. To check for "in", its IdentifierInfo is handed
through a few layers.

llvm-svn: 174889
2013-02-11 15:32:15 +00:00
Manuel Klimek 2549956ee3 Get rid of manual debug output, now that the test runner supports it.
You can run tests with -debug instead now.

llvm-svn: 174880
2013-02-11 12:37:30 +00:00
Daniel Jasper eef30490fd Fix invalid formatting with spaces before trailing comments.
In google style, trailing comments are separated by two spaces. This
patch fixes the counting of these spaces and prevents clang-format from
creating a line with 81 columns.

llvm-svn: 174879
2013-02-11 12:36:37 +00:00
Manuel Klimek 0c13795f68 Fixes handling of empty lines in macros.
Now correctly formats:
 #define A \
   \
   b;
to
 #define A b;

Added the state whether an unwrapped line is a macro to the debug
output.

llvm-svn: 174878
2013-02-11 12:33:24 +00:00
Daniel Jasper 35d2dc765e Fix formatting of overloaded operator definitions.
Before:
operatorvoid*();
operator vector< A< A>>();

After:
operator void *();
operator vector<A<A> >();

llvm-svn: 174863
2013-02-11 08:01:18 +00:00
Nico Weber da2b868f1e Formatter: Remove now-unneeded code for formatting ':'s in ObjC method decls.
The more general code for formatting ObjC method exprs does this and more,
it's no longer necessary to special-case this. No behavior change.

llvm-svn: 174843
2013-02-10 21:08:31 +00:00
Nico Weber 372d8dcf15 Formatter: Initial support for ObjC dictionary literals.
Before:
  @{
  foo:
    bar
  }
  ;

Now:
  @{ foo : bar };

parseBracedList() already does the right thing from an UnwrappedLineParser
perspective, so check for "@{" in all loops that process constructs that can
contain expressions and call parseBracedList() if found.

llvm-svn: 174840
2013-02-10 20:35:35 +00:00
Nico Weber 67ffb338ee Reformat formatter code. No functionality change.
llvm-svn: 174823
2013-02-10 04:38:23 +00:00
Nico Weber 2a726b6c34 Formatter: Detect ObjC array literals.
Use this to add a space after "@[" and before "]" for now.

Later, I want to use this to format multi-line array literals nicer, too.

llvm-svn: 174822
2013-02-10 02:08:05 +00:00
Manuel Klimek d076dcd54f Fix indentation-detection at indent level 0.
This correctly formats:
  {
    a;
  }
where { is incorrectly indented by 2, but is at level 0, when
reformatting only 'a;'.

llvm-svn: 174737
2013-02-08 19:53:32 +00:00
Manuel Klimek b95f5450a9 Takes the context into account when re-indenting regions.
Fixes llvm.org/PR14916.

llvm-svn: 174720
2013-02-08 17:38:27 +00:00
Daniel Jasper 8360a86c8c Fix handling of fake parenthesis during formatting.
They are much easier to handle when attached to the previous token.

Before:
unsigned Indent =
    formatFirstToken(TheLine.First, IndentForLevel[TheLine.Level] >=
                                    0 ? IndentForLevel[TheLine.Level]
: TheLine.Level * 2, TheLine.InPPDirective, PreviousEndOfLineColumn);

After:
unsigned Indent = formatFirstToken(
    TheLine.First, IndentForLevel[TheLine.Level] >= 0
                       ? IndentForLevel[TheLine.Level] : TheLine.Level * 2,
    TheLine.InPPDirective, PreviousEndOfLineColumn);

llvm-svn: 174718
2013-02-08 16:49:27 +00:00