Commit Graph

115 Commits

Author SHA1 Message Date
Daniel Jasper bca4bbe30a Initial support for designated initializers.
llvm-svn: 182767
2013-05-28 11:30:49 +00:00
Daniel Jasper 3719428c06 Clean up formatting of function types.
Before:
int (*func)(void*);
void f() { int(*func)(void*); }

After (consistent space after "int"):
int (*func)(void*);
void f() { int (*func)(void*); }

llvm-svn: 182756
2013-05-28 08:33:00 +00:00
Daniel Jasper 1eff9080af Improve formatting of templates.
Before: A < int&& > a;
After:  A<int &&> a;

Also remove obsolete FIXMEs.

llvm-svn: 182741
2013-05-27 16:36:33 +00:00
Nico Weber ced7d41b51 Formatter/ObjC: In dictionary literals, break after ':', not before it.
Before:
  @{ NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
     : regularFont, };

Now:
  @{ NSFontAttributeNameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :
     regularFont, };

':'s in dictionary literals (and the corresponding {}s) are now marked as
TT_ObjCDictLiteral too, which makes further improvements to dict literal
layout possible.

llvm-svn: 182716
2013-05-26 05:39:26 +00:00
Daniel Jasper f632f69284 More tests and a fix for braced init lists.
Before: f(new vector<int> { 1, 2, 3 });
After:  f(new vector<int>{ 1, 2, 3 });
llvm-svn: 182614
2013-05-23 21:35:49 +00:00
Daniel Jasper 5bd0b9e53b Improve formatting of braced lists.
Before: vector<int> v{ -1};
After:  vector<int> v{-1};
llvm-svn: 182597
2013-05-23 18:05:18 +00:00
Daniel Jasper e5777d25d6 Improve formatting of braced lists.
Before:
vector<int> x { 1, 2, 3 };
After:
vector<int> x{ 1, 2, 3 };

Also add a style option to remove the spaces inside braced lists,
so that the above becomes:
std::vector<int> v{1, 2, 3};

llvm-svn: 182570
2013-05-23 10:15:45 +00:00
Manuel Klimek 4fe43002f8 Makes whitespace management more consistent.
Instead of selectively storing some changes and directly generating
replacements for others, we now notify the WhitespaceManager of the
whitespace before every token (and optionally with more changes inside
tokens).

Then, we run over all whitespace in the very end in original source
order, where we have all information available to correctly align
comments and escaped newlines.

The future direction is to pull more of the comment alignment
implementation that is now in the BreakableToken into the
WhitespaceManager.

This fixes a bug when aligning comments or escaped newlines in unwrapped
lines that are handled out of order:
  #define A \
    f({     \
      g();  \
    });
... now gets correctly layouted.

llvm-svn: 182467
2013-05-22 12:51:29 +00:00
Daniel Jasper a4c571cd1c Improve clang-format's stream formatting.
clang-format was a bit too aggressive when trying to keep labels and
values on the same line.

Before:
    llvm::outs()
         << "aaaaaaaaaaaaaaaaaaa: " << aaaaaaaaaaaaa(
                                           aaaaaaaaaaaaaaaaaaaaaaaaaaaa);
After:
  llvm::outs() << "aaaaaaaaaaaaaaaaaaa: "
               << aaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 182458
2013-05-22 09:13:26 +00:00
Daniel Jasper 13c37b3483 Improve handling of trailing 'const'.
Reduce the preference for breaking before a trailing 'const' according
to review comments on r182362.

llvm-svn: 182455
2013-05-22 08:28:26 +00:00
Daniel Jasper f8114cf621 Cut-off clang-format analysis.
If clang-format is confronted with long and deeply nested lines (e.g.
complex static initializers or function calls), it can currently try too
hard to find the optimal solution and never finish. The reason is that
the memoization does not work effectively for deeply nested lines.

This patch removes an earlier workaround and instead opts for
accepting a non-optimal solution in rare cases. However, it only does
so only in cases where it would have to analyze an excessive number of
states (currently set to 10000 - the most complex line in Format.cpp
requires ~800 states) so this should not change the behavior in a
relevant way.

llvm-svn: 182449
2013-05-22 05:27:42 +00:00
Daniel Jasper 5be31f728a Allow breaking before a trailing const.
Before:
void someLongFunction(
    int someLongParameter) const;

After:
void someLongFunction(int someLongParameter)
    const;

Also slightly cleanup tests.

llvm-svn: 182362
2013-05-21 09:16:31 +00:00
Daniel Jasper 6f05e59f23 Improve recognition of template definitions.
In the long run, this will probably be better fixed by a proper
expression parser..

Before:
  template <typename F>
  Matcher(const Matcher<F> & Other,
          typename enable_if_c < is_base_of<F, T>::value &&
              !is_same<F, T>::value > ::type * = 0)
      : Implementation(new ImplicitCastMatcher<F>(Other)) {}

After:
  template <typename F>
  Matcher(const Matcher<F> & Other,
          typename enable_if_c<is_base_of<F, T>::value &&
                               !is_same<F, T>::value>::type * = 0)
      : Implementation(new ImplicitCastMatcher<F>(Other)) {}

llvm-svn: 181884
2013-05-15 13:46:48 +00:00
Daniel Jasper 5dad58e9df Improve formatting of function types.
The function type detection in r181438 and r181764 detected function
types too eagerly. This led to inconsistent formatting of inline
assembly and (together with r181687) to an incorrect formatting of calls
in macros.

Before: #define DEREF_AND_CALL_F(parameter) f (*parameter)
After:  #define DEREF_AND_CALL_F(parameter) f(*parameter)
llvm-svn: 181870
2013-05-15 07:51:51 +00:00
Daniel Jasper 8187c76db5 Fix uninitialized value bug found by valgrind.
llvm-svn: 181779
2013-05-14 10:44:17 +00:00
Daniel Jasper abc342148f Don't format sizeof/alignof as function types.
Before: A<sizeof (*x)> a;
After:  A<sizeof(*x)> a;
llvm-svn: 181764
2013-05-14 08:34:47 +00:00
Daniel Jasper b910bbb87a Assume macros to contain declarations.
This seems to be the vastly more common case. If we find enough
examples to the contrary, we can make it smarter.

Before: #define MACRO void f(int * a)
After:  #define MACRO void f(int *a)
llvm-svn: 181687
2013-05-13 07:14:40 +00:00
Daniel Jasper 8f9624b3bc Fix bug when formatting overloaded operators.
Before, the actual operator of an overloaded operator declaration was
handled as a binary operator an thus, clang-format could not find valid
formattings for many examples, e.g.:

template <typename AAAAAAA, typename BBBBBBB>
AAAAAAA operator/(const AAAAAAA &a, BBBBBBB &b);

llvm-svn: 181585
2013-05-10 07:59:58 +00:00
Daniel Jasper 2f34cacc3b Further fix to pointer to member formatting.
With style where the *s go with the type:
Before: typedef bool* (Class:: *Member)() const;
After:  typedef bool* (Class::*Member)() const;

llvm-svn: 181439
2013-05-08 15:06:58 +00:00
Daniel Jasper cfda517ea8 Fix formatting of pointers to members.
Before: int(S::*func)(void *);
After:  int (S::*func)(void *);
llvm-svn: 181438
2013-05-08 14:58:20 +00:00
Daniel Jasper d69fc77b9e Improve line breaking in binary expressions.
If the LHS of a binary expression is broken, clang-format should also
break after the operator as otherwise:
- The RHS can be easy to miss
- It can look as if clang-format doesn't understand operator precedence

Before:
bool aaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa !=
                                 bbbbbbbbbbbbbbbbbb && ccccccccc == ddddddddddd;
After:
bool aaaaaaaaaaaaaaaaaaaaa =
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa != bbbbbbbbbbbbbbbbbb &&
    ccccccccc == ddddddddddd;

As an additional note, clang-format would also be ok with the following
formatting, it just has a higher penalty (IMO correctly so).
bool aaaaaaaaaaaaaaaaaaaaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa !=
                                 bbbbbbbbbbbbbbbbbb &&
                             ccccccccc == ddddddddddd;

llvm-svn: 181430
2013-05-08 14:12:04 +00:00
Daniel Jasper 990ff9729b Correctly recognize dereference after 'delete'.
With certain styles:
Before: delete* x;
After:  delete *x;

llvm-svn: 181318
2013-05-07 14:17:18 +00:00
Daniel Jasper 8e35769b24 Change indentation when breaking after a type.
clang-format did not indent any declarations/definitions when breaking
after the type. With this change, it indents for all declarations but
does not indent for function definitions, i.e.:

Before:
const SomeLongTypeName&
some_long_variable_name;
typedef SomeLongTypeName
SomeLongTypeAlias;
const SomeLongReturnType*
SomeLongFunctionName();
const SomeLongReturnType*
SomeLongFunctionName() { ... }

After:
const SomeLongTypeName&
    some_long_variable_name;
typedef SomeLongTypeName
    SomeLongTypeAlias;
const SomeLongReturnType*
    SomeLongFunctionName();
const SomeLongReturnType*
SomeLongFunctionName() { ... }

While it might seem inconsistent to indent function declarations, but
not definitions, there are two reasons for that:
- Function declarations are very similar to declarations of function
type variables, so there is another side to consistency to consider.
- There can be many function declarations on subsequent lines and not
indenting can make them harder to identify. Function definitions
are already separated by their body and not indenting
makes the function name slighly easier to find.

llvm-svn: 181187
2013-05-06 08:27:33 +00:00
Daniel Jasper a61aefb367 Break the class-inheritance ":" to the new line.
This seems to be more common in LLVM, Google and Chromium.

Before:
class AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA :
    public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,
    public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {
};

After:
class AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    : public BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB,
      public CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC {
};

llvm-svn: 181183
2013-05-06 06:45:09 +00:00
Daniel Jasper 10cd581f95 Don't put a space before ellipsis.
Before: template <class ... Ts> void Foo(Ts ... ts) { Foo(ts ...); }
After:  template <class... Ts> void Foo(Ts... ts) { Foo(ts...); }
llvm-svn: 181182
2013-05-06 06:35:44 +00:00
Daniel Jasper 72463d32e0 Add space between ; and (.
Before: for (int i = 0;(i < 10); ++i) {}
After:  for (int i = 0; (i < 10); ++i) {}
llvm-svn: 181020
2013-05-03 14:50:50 +00:00
Daniel Jasper c37de30219 Fix expression recognition in for-loops.
Before: for (; a&& b;) {}
After:  for (; a && b;) {}
llvm-svn: 181017
2013-05-03 14:41:24 +00:00
Daniel Jasper e3c0e0144e Improve clang-format's memoization behavior.
Deeply nested expressions basically break clang-format's memoization.
This patch slightly improves the situations and makes expressions like

  aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(
      aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(
          aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(
              aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(aaaaa(
                  aaaaa(aaaaa())))))))))))))))))))))))))))))))))))))));

work.

llvm-svn: 180264
2013-04-25 13:31:51 +00:00
Daniel Jasper 4431aa99ab Fix formatting of complex #if expressions.
Before:
  #if !defined(AAAAAAAAAAAAAAAA) && (defined CCCCCCCC ||                         \
                                     defined DDDDDDDD) && defined(BBBBBBBB)

After:
  #if !defined(AAAAAAAAAAAAAAAA) && (defined CCCCCCCC || defined DDDDDDDD) &&    \
      defined(BBBBBBBB)

This fixes llvm.org/PR15828.

llvm-svn: 180105
2013-04-23 13:54:04 +00:00
Daniel Jasper 6728fc11bc Change clang-format's affinity for breaking after return types.
Function declarations are now broken with the following preferences:
1) break amongst arguments.
2) break after return type.
3) break after (.
4) break before after nested name specifiers.

Options #2 or #3 are preferred over #1 only if a substantial number of
lines can be saved by that.

llvm-svn: 179287
2013-04-11 14:29:13 +00:00
Daniel Jasper 6e8f4edf2d Fix formatting of overloaded assignment operators.
Before: SomeType &operator=(const SomeType & S);
After:  SomeType &operator=(const SomeType &S);
llvm-svn: 179270
2013-04-11 08:48:20 +00:00
Daniel Jasper c04baae34a Fix labels with trailing comments and cleanup.
Before:
class A {
public : // test
};

After:
class A {
public: // test
};

Also remove duplicate methods calculating properties of AnnotatedTokens
and make them members of AnnotatedTokens so that they are in a common
place.

llvm-svn: 179167
2013-04-10 09:49:49 +00:00
Daniel Jasper 6bee682fae Revamp indentation behavior for complex binary expressions.
The idea is to indent according to operator precedence and pretty much
identical to how stuff would be indented with parenthesis.

Before:
bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
             aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
             aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==
             aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *
             bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +
             bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb &&
             aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *
             aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >
             ccccccccccccccccccccccccccccccccccccccccc;

After:
  bool value = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
                       aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
                       aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ==
                   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *
                           bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +
                       bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb &&
               aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa *
                       aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa >
                   ccccccccccccccccccccccccccccccccccccccccc;

llvm-svn: 179049
2013-04-08 20:33:42 +00:00
Daniel Jasper e7de2a3013 Revert accidental commit r179015.
llvm-svn: 179016
2013-04-08 10:45:44 +00:00
Daniel Jasper bd16eea59f x
llvm-svn: 179015
2013-04-08 10:36:32 +00:00
Daniel Jasper 8319360099 Allow breaking after 'class' for classes with looong names.
(Don't ask, this was a user request).

llvm-svn: 178888
2013-04-05 17:22:09 +00:00
Daniel Jasper 54ac820890 Fix bad formatting of overloaded operator definitions.
Before:
bool operator<
    (const aaaaaaaaaaaaaaaaaaaaa &left, const aaaaaaaaaaaaaaaaaaaaa &right) {
  return left.group < right.group;
}

After:
bool operator<(const aaaaaaaaaaaaaaaaaaaaa &left,
               const aaaaaaaaaaaaaaaaaaaaa &right) {
  return left.group < right.group;
}

llvm-svn: 178887
2013-04-05 17:21:59 +00:00
Daniel Jasper a628c98bd3 Improve formatting of for loops and multi-variable DeclStmts.
This combines several related changes:
a) Don't break before after the variable types in for loops with a
   single variable.
b) Better indent DeclStmts defining multiple variables.

Before:
bool aaaaaaaaaaaaaaaaaaaaaaaaa =
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa),
     bbbbbbbbbbbbbbbbbbbbbbbbb =
         bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(bbbbbbbbbbbbbbbb);
for (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
         aaaaaaaaaaa = aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa;
     aaaaaaaaaaa != aaaaaaaaaaaaaaaaaaa; ++aaaaaaaaaaa) {
}

After:
bool aaaaaaaaaaaaaaaaaaaaaaaaa =
         aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaa),
     bbbbbbbbbbbbbbbbbbbbbbbbb =
         bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(bbbbbbbbbbbbbbbb);
for (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaa =
         aaaaaaaaaaaaaaaa.aaaaaaaaaaaaaaa;
     aaaaaaaaaaa != aaaaaaaaaaaaaaaaaaa; ++aaaaaaaaaaa) {
}

llvm-svn: 178641
2013-04-03 13:36:17 +00:00
Daniel Jasper 6e42b1eb8b Improve formatting of function types.
Before: void * (*a)(int *, SomeType *);
After:  void *(*a)(int *, SomeType *);
llvm-svn: 178474
2013-04-01 17:13:26 +00:00
Daniel Jasper dd9276e464 Better fix for r177725.
It turns out that

-foo;

can be an objective C method declaration. So instead of the previous
solution, recognize objective C methods only if we are in a declaration
scope.

llvm-svn: 177740
2013-03-22 16:55:40 +00:00
Daniel Jasper 399d1ee5a0 More precisely recognize ObjC method declarations.
Otherwise, +/- and the beginning of constants can be recognized
incorrectly.

Before:  #define A - 1
After:   #define A -1
llvm-svn: 177725
2013-03-22 10:44:43 +00:00
Alexander Kornienko 674be0a3da Support for pointers-to-members usage via .*
Summary: Added support for pointers-to-members usage via .* and a few tests.

Reviewers: djasper

Reviewed By: djasper

CC: cfe-commits, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D556

llvm-svn: 177537
2013-03-20 16:41:56 +00:00
Daniel Jasper aab220f307 Reduce penalty for breaks after "(" for functions with parameters.
Before:
  aaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
                    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
                    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);
After:
  aaaaaaaaaaaaaaaaa(
      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 177521
2013-03-20 13:53:11 +00:00
Daniel Jasper d1ae3588c6 Add extra indentation for multiline comparisons.
This seems to be generally more desired.

Before:
if (aaaaaaaa &&
    bbbbbbbb >
    cccccccc) {}
After:
if (aaaaaaaa &&
    bbbbbbbb >
        cccccccc) {}

Also: Some formatting cleanup on clang-format's files.
llvm-svn: 177514
2013-03-20 12:37:50 +00:00
Daniel Jasper b8914dd471 Improve formatting of function types in template parameters.
Before: A<int * (int)>;
After:  A<int *(int)>;
llvm-svn: 177505
2013-03-20 09:53:18 +00:00
Daniel Jasper 850677d94a Fix clang-format segfault.
When annotating "lines" starting with ":", clang-format would segfault.
This could actually happen in valid code, e.g.
  #define A :

llvm-svn: 177283
2013-03-18 12:50:26 +00:00
Daniel Jasper f38a0ace2d Slightly improve formatting of longer pipe statements.
The stronger binding of a string ending in :/= does not really make
sense if it is the only character.

Before:
llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa
             << "=" << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;

After:
llvm::outs() << aaaaaaaaaaaaaaaaaaaaaaaa << "="
             << bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;

llvm-svn: 177075
2013-03-14 14:00:17 +00:00
Daniel Jasper 40aacf4872 Basic support for formatting asm() statments.
llvm-svn: 177073
2013-03-14 13:45:21 +00:00
Daniel Jasper ae9076457e Fix dereference formatting in for-loops.
Before: for (char **a = b; * a; ++a) {}
After:  for (char **a = b; *a; ++a) {}
llvm-svn: 177037
2013-03-14 10:50:25 +00:00
Daniel Jasper bf4755bb28 Improve formatting of trailing annotations.
Before:
bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa __attribute__((
    unused));

After:
bool aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    __attribute__((unused));

llvm-svn: 177034
2013-03-14 09:50:46 +00:00