Commit Graph

499 Commits

Author SHA1 Message Date
Manuel Klimek 1abf789c7a Various fixes to clang-format's macro handling.
Some of this is still pretty rough (note the load of FIXMEs), but it is
strictly an improvement and fixes various bugs that were related to
macro processing but are also imporant in non-macro use cases.

Specific fixes:
- correctly puts espaced newlines at the end of the line
- fixes counting of white space before a token when escaped newlines are
  present
- fixes parsing of "trailing" tokens when eof() is hit
- puts macro parsing orthogonal to parsing other structure
- general support for parsing of macro definitions

Due to the fix to format trailing tokens, this change also includes a
bunch of fixes to the c-index tests.

llvm-svn: 171556
2013-01-04 23:34:14 +00:00
Daniel Jasper 3c2557d0dd Correctly format dereference and address of in array parameters.
Before: InvalidRegions[ &R] = 0;
After:  InvalidRegions[&R] = 0;

This fixes llvm.org/PR14793

llvm-svn: 171522
2013-01-04 20:46:38 +00:00
Daniel Jasper c0880a904b Let the formatter ignore UnwrappedLines containing errors.
This prevents code like:

namespace {
class Foo {
  Foo(
  };
}  // comment

from causing segfaults (see llvm.org/PR14774).

llvm-svn: 171495
2013-01-04 18:52:56 +00:00
Manuel Klimek b69e3c6201 Fixes multiple formatting bugs.
Fixes:
- incorrect handling of multiple consecutive preprocessor directives
- crash when trying to right align the escpaed newline for a line that
  is longer than the column limit
- using only ColumnLimit-1 columns when layouting with escaped newlines
  inside preprocessor directives

llvm-svn: 171401
2013-01-02 18:33:23 +00:00
Daniel Jasper 90e51fdbab Don't allow line breaks after template parameters.
This fixes llvm.org/PR14786.

We will need to split there as a last resort, but that should be done
consistently independent of whether the type is a template type or not.

Before:
template <typename T>
aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaa<T>
                    ::aaaaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

After:
template <typename T>
aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaa,
                    aaaaaaaaaaaaaaaaaaaaaaaaaa<T>::aaaaaaaaaa,
                    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 171400
2013-01-02 18:30:06 +00:00
Daniel Jasper 3c0431c887 Format */& as binary operator if followed by a unary operator.
This fixes llvm.org/PR14687.
Also fixes segfault for lines starting with * or &.

Before:
a *~b;
*a = 1;  // <- this segfaulted

After:
a * ~b;
*a = 1;  // no segfault :-)

llvm-svn: 171396
2013-01-02 17:21:36 +00:00
Manuel Klimek a71e5d8115 Fixes use of unescaped newlines when formatting preprocessor directives.
This is the first step towards handling preprocessor directives. This
patch only fixes the most pressing issue, namely correctly escaping
newlines for tokens within a sequence of a preprocessor directive.

The next step will be to fix incorrect format decisions on #define
directives.

llvm-svn: 171393
2013-01-02 16:30:12 +00:00
Daniel Jasper 542de16e50 Correctly format pointers and references in casts.
This fixes llvm.org/PR14747.

Before: Type *A = (Type * ) P;
After:  Type *A = (Type *) P;
llvm-svn: 171390
2013-01-02 15:46:59 +00:00
Daniel Jasper da1c68ab71 Understand unary operators after "return" and "case".
This fixes llvm.org/PR14746.

Before: return - 1;
After:  return -1;
llvm-svn: 171389
2013-01-02 15:26:16 +00:00
Daniel Jasper ac5c1c286c Prefer splitting after "template <...>" and fix indentation.
This addresses llvm.org/PR14699

Before:
template <typename T>
    void looooooooooooooooooooooongFunction(int Param1, int Param2);
template <typename T> void looooooooooooooooooooongFunction(
    int Paaaaaaaaaaaaaaaaaaaaram1, int Paaaaaaaaaaaaaaaaaaaaram2);

After:
template <typename T>
void looooooooooooooooooooooongFunction(int Param1, int Param2);
template <typename T>
void looooooooooooooooooooongFunction(int Paaaaaaaaaaaaaaaaaaaaram1,
                                      int Paaaaaaaaaaaaaaaaaaaaram2);

llvm-svn: 171388
2013-01-02 15:08:56 +00:00
Daniel Jasper 3d0c75cc96 Prefer to break after operators over breaking after "(".
Before:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

After:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
                                 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 171386
2013-01-02 14:40:02 +00:00
Chandler Carruth 44eb4f66f4 Re-sort #include lines using the llvm/utils/sort_includes.py script.
Removes a duplicate #include as well as cleaning up some sort order
regressions since I last ran the script over Clang.

llvm-svn: 171364
2013-01-02 10:28:36 +00:00
Daniel Jasper 22bcf8a8eb Understand * and & in ternary expressions.
Before: "int a = b ? *c : * d;"
After: "int a = b ? *c : *d;
llvm-svn: 171358
2013-01-02 08:57:10 +00:00
Daniel Jasper d1926a3758 Don't break after pointer or reference specifier.
This fixes llvm.org/PR14717.
Buggy format:
TypeSpecDecl *
    TypeSpecDecl::Create(ASTContext &C, DeclContext *DC, SourceLocation L,
                         IdentifierInfo *II, Type *T) {

Now changed to:
TypeSpecDecl *TypeSpecDecl::Create(ASTContext &C, DeclContext *DC,
                                   SourceLocation L, IdentifierInfo *II,
                                   Type *T) {

llvm-svn: 171357
2013-01-02 08:44:14 +00:00
Daniel Jasper 8fbd96855c Let clang-format format itself.
Apply all formatting changes that clang-format would apply to its own source
code. All choices seem to improve readability (or at least not make it worse).
No functional changes.

llvm-svn: 171039
2012-12-24 16:51:15 +00:00
Daniel Jasper 6d822720f0 Penalize tokens with a lower parenthesis level than the start of the line.
This prevents formattings like this (assuming "parameter" doesn't fit the line):
  bool f = someFunction() && someFunctionWithParam(
      parameter) && someOtherFunction();

Here, "parameter" - the start of line 2 - has a parenthesis level of 2, but
there are subsequent tokens ("&&" and "someOtherFunction") with a lower level.
This is bad for readability as "parameter" hides "someOtherFunction". With this
patch, this changes to:
  bool f = someFunction() &&
           someFunctionWithParam(parameter) &&
           someOtherFunction();

llvm-svn: 171038
2012-12-24 16:43:00 +00:00
Daniel Jasper 2eda23e78a Align RHS after assignments and return statements.
This changes:
  int Result = a +  // force break
      b;
  return Result +  // force break
      5;

To:
  int Result = a +  // force break
               b;
  return Result +  // force break
         5;

llvm-svn: 171032
2012-12-24 13:43:52 +00:00
Daniel Jasper 537a29638d Fix formatting over overloaded operators.
This fixes llvm.org/pr14686.

We used to add too many spaces for different versions of overloaded operator
function declarations/definitions. This patch changes, e.g.

  operator *() {}
  operator >() {}
  operator () () {}

to

  operator*() {}
  operator>() {}
  operator()() {}

llvm-svn: 171028
2012-12-24 10:56:04 +00:00
Daniel Jasper de5c20792d Take operator precedence into account when splitting lines.
With this patch, splitting after binary operators has a panelty corresponding
to the operator's precedence. We used to ignore this and eagerly format like:

  if (aaaaaaaaaaaaaaaaaaaaaaaaa || bbbbbbbbbbbbbbbbbbbbbbbbb &&
      ccccccccccccccccccccccccc) { .. }

With this patch, this becomes:

  if (aaaaaaaaaaaaaaaaaaaaaaaaa ||
      bbbbbbbbbbbbbbbbbbbbbbbbb && ccccccccccccccccccccccccc) { .. }

llvm-svn: 171007
2012-12-24 00:13:23 +00:00
Nico Weber 6f372e6533 libFormat: Teach the *& usage heuristic that "return" starts a rhs too.
"return a*b;" was formatted as "return a *b;" and is now formatted as "return a * b;".

Fixes PR14687 partially.

llvm-svn: 170993
2012-12-23 01:07:46 +00:00
Nico Weber 8f83ee46ba format: Handle #import as include directive too.
llvm-svn: 170914
2012-12-21 18:21:56 +00:00
Daniel Jasper 050948a5a5 clang-format: No spaces around directory specifiers
This fixes PR14683. We used to format like this:
  #include <a / b>

And this patch changes this to:
  #include <a/b>

llvm-svn: 170910
2012-12-21 17:58:39 +00:00
Fariborz Jahanian 3b1604e485 Fix typo.
llvm-svn: 170904
2012-12-21 17:14:23 +00:00
Daniel Jasper fbde69e266 Basic support for formatting for-loops.
We used to not really format them. Now we do:

  for (MachineBasicBlock::succ_iterator SI = BB->succ_begin(),
                                        SE = BB->succ_end();
       SI != SE; ++SI) {

This is just one example and I am sure we still mess some of them up, but it
is a step forward.

llvm-svn: 170899
2012-12-21 14:37:20 +00:00
Daniel Jasper ab7654e894 Use OperatorPrecedence.h in clang-format
No indented functional changes other than handling more operators
correctly.

llvm-svn: 170875
2012-12-21 10:20:02 +00:00
Daniel Jasper 8dd404737b Formatting fixes for PR14680
Also, some (automated) formatting fixes and slight cleanups.

llvm-svn: 170873
2012-12-21 09:41:31 +00:00
Fariborz Jahanian 68a542aea7 Add objective-C style formatting to clang format and
use it to format xml declaration tags. 
// rdar://12378714

llvm-svn: 170727
2012-12-20 19:54:13 +00:00
Daniel Jasper 2af6bbe7e0 Better support for constructor initializers.
We used to format initializers like this (with a sort of hacky implementation):
Constructor()
    : Val1(A),
      Val2(B) {

and now format like this (with a somewhat better solution):
Constructor()
    : Val1(A), Val2(B) {

assuming this would not fit on a single line. Also added tests.

As a side effect we now first analyze whether an UnwrappedLine needs to be
split at all. If not, not splitting it is the best solution by definition. As
this should be a very common case in normal code, not exploring the entire
solution space can provide significant speedup.

llvm-svn: 170457
2012-12-18 21:05:13 +00:00
Daniel Jasper 5485d0cd67 Add basic support for splitting before function calls if it can't be
avoided.

This required a minor modification of the memoization as now the
"CurrentPenalty" depends on whether or not we break before the current
token. Therefore, the CurrentPenalty should not be memoized but added
after retrieving a value from memory. This should not affect the runtime
behavior.

llvm-svn: 170337
2012-12-17 14:34:14 +00:00
Daniel Jasper e25509f857 Fix several formatting problems.
More specifically:
- Improve formatting of static initializers.
- Fix formatting of lines comments in enums.
- Fix formmating of trailing line comments.

llvm-svn: 170316
2012-12-17 11:29:41 +00:00
Daniel Jasper a4396865d0 Addi formatting tests for pointer template parameters.
Fix spacing before ",".

llvm-svn: 169746
2012-12-10 18:59:13 +00:00
Alexander Kornienko 2ca766f32a Clang-format: error recovery for access specifiers
Reviewers: klimek

Reviewed By: klimek

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D198

llvm-svn: 169738
2012-12-10 16:34:48 +00:00
Alexander Kornienko e327684b2a Clang-format: extracted FormatTokenSource from UnwrappedLineParser.
Summary: FormatTokenLexer is here, FormatTokenBuffer is on the way. This will allow to re-parse unwrapped lines when needed.

Reviewers: djasper, klimek

Reviewed By: klimek

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D186

llvm-svn: 169605
2012-12-07 16:15:44 +00:00
Daniel Jasper 2723403f9e Small tweaks to clang-format.
Now not joining keywords with '::' and not putting a space between
a pointer pointer.

llvm-svn: 169594
2012-12-07 09:52:15 +00:00
Alexander Kornienko 578fdd8968 Clang-format: IndentCaseLabels option, proper namespace handling
Summary: + tests arranged in groups, as their number is already quite large.

Reviewers: djasper, klimek

Reviewed By: djasper

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D185

llvm-svn: 169520
2012-12-06 18:03:27 +00:00
Daniel Jasper 26333c3b6b Improve clang-format's handling of unary operators.
llvm-svn: 169500
2012-12-06 13:16:39 +00:00
Daniel Jasper e9de260418 "<<" alignment for clang-format.
Also, small fix for handling the first token correctly.

Review: http://llvm-reviews.chandlerc.com/D177
llvm-svn: 169488
2012-12-06 09:56:08 +00:00
Daniel Jasper 55b6b6434e Remove bad and useless enum to bool conversion.
llvm-svn: 169390
2012-12-05 16:24:48 +00:00
Daniel Jasper aa1c920db8 Indentation fixes for clang-format.
- Fix behavior of memoization together with optimization
- Correctly attribute the PenaltyIndentLevel (breaking directly after "(" did
  not count towards the inner level)
- Recognize more tokens as assignments

Review: http://llvm-reviews.chandlerc.com/D172
llvm-svn: 169384
2012-12-05 14:57:28 +00:00
Alexander Kornienko bc09a7ea85 Follow-up to r169286, addresses comments in http://llvm-reviews.chandlerc.com/D164#comment-4 : comments and a method rename
llvm-svn: 169382
2012-12-05 13:56:52 +00:00
Daniel Jasper 426702dcd0 Small tweaks to automatic formatting.
Recognize '!=' as a binary operator and assume that there are no
type definitions on the RHS of an assignment.

llvm-svn: 169363
2012-12-05 07:51:39 +00:00
Daniel Jasper 61bd3a1dc6 Add missing destructors found with -Wnon-virtual-dtor.
llvm-svn: 169303
2012-12-04 21:05:31 +00:00
Alexander Kornienko 870f9eb9cc Error recovery part 2
Summary: Adds recovery for structural errors in clang-format.

Reviewers: djasper

Reviewed By: djasper

CC: cfe-commits, silvas

Differential Revision: http://llvm-reviews.chandlerc.com/D164

llvm-svn: 169286
2012-12-04 17:27:50 +00:00
Daniel Jasper 6021c4a249 Make parenthesis counting and aligning a bit saner.
Review: http://llvm-reviews.chandlerc.com/D162
llvm-svn: 169274
2012-12-04 14:54:30 +00:00
Daniel Jasper 8b5297117b Small fixes to unary operator recognition and handling of include
directives.

llvm-svn: 169261
2012-12-04 13:02:32 +00:00
Daniel Jasper 9b155475a8 Replace workarounds with correct fixes.
Also fix header guard.

http://llvm-reviews.chandlerc.com/D159

llvm-svn: 169254
2012-12-04 10:50:12 +00:00
Chandler Carruth 3a02247dc9 Sort all of Clang's files under 'lib', and fix up the broken headers
uncovered.

This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.

I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.

llvm-svn: 169237
2012-12-04 09:13:33 +00:00
Manuel Klimek 6a5619d12e Fixes a compile warning and crash in the tests.
The necessity of this fix points to a problem with the design
of the addToken during the optimiation phase, which we need to address
in a much more principled way.

llvm-svn: 169151
2012-12-03 20:55:42 +00:00
Daniel Jasper f793511579 Initial version of formatting library.
This formatting library will be used by a stand-alone clang-format tool
and can also be used when writing other refactorings.

Manuel's original design document:
https://docs.google.com/a/google.com/document/d/1gpckL2U_6QuU9YW2L1ABsc4Fcogn5UngKk7fE5dDOoA/edit

The library can already successfully format itself.

Review: http://llvm-reviews.chandlerc.com/D80
llvm-svn: 169137
2012-12-03 18:12:45 +00:00