Commit Graph

130 Commits

Author SHA1 Message Date
Daniel Jasper 736c14fac4 Never merge < and ::, as it produces different tokens.
Before: vector<::Type> t;
After:  vector< ::Type> t;
llvm-svn: 172601
2013-01-16 07:19:28 +00:00
Daniel Jasper c36492b598 Remove errors were if statements were incorrectly put on a single line.
Before: if (a)  // This comment confused clang-format f();
After:  if (a)  // No more confusion
          f();
llvm-svn: 172600
2013-01-16 07:02:34 +00:00
Manuel Klimek a31e58b2df Do not traverse the break-state when we know we cannot break anyway.
This is an optimization that djasper spottet. For now, we do not format
anything after the first token that belongs to such an implicit string
literal. All our state is not made for handling that anyway, so we'll
revisit this if we find a problem.

llvm-svn: 172537
2013-01-15 16:41:02 +00:00
Manuel Klimek 99c7baa3cf Fix formatting of preprocessor directives (incluces, warnings & errors).
Treat tokens inside <> for includes and everything from the second token
of a warning / error on as an implicit string literal, e.g. do not
change its whitespace at all.

Now correctly formats:
 #include < path with space >
 #error Leave     all         white!!!!! space* alone!

Note that for #error and #warning we still format the space up to the
first token of the text, so:
   #  error   Text
will become
 #error Text

llvm-svn: 172536
2013-01-15 15:50:27 +00:00
Daniel Jasper 7194527d9f Improve operator kind detection in presence of comments.
We used to incorrectly identify some operators (*, &, +, -, etc.) if
there were comments around them.

Example:
Before: int a = /**/ - 1;
After:  int a = /**/ -1;

llvm-svn: 172533
2013-01-15 14:27:39 +00:00
Manuel Klimek a54d1a99a2 Fixes formatting of nested brace initializers.
We now format this correctly:
Status::Rep Status::global_reps[3] = {
  { kGlobalRef, OK_CODE, NULL, NULL, NULL },
  { kGlobalRef, CANCELLED_CODE, NULL, NULL, NULL },
  { kGlobalRef, UNKNOWN_CODE, NULL, NULL, NULL }
};

- fixed a bug where BreakBeforeClosingBrace would be set on the wrong
  state
- added penalties for breaking between = and {, and between { and any
  other non-{ token

llvm-svn: 172433
2013-01-14 16:41:43 +00:00
Daniel Jasper 1b750edda1 Make single-line if statements optional.
Now, "if (a) return;" is only allowed, if this option is set.

Also add a Chromium style which is currently identical to Google style
except for this option.

llvm-svn: 172431
2013-01-14 16:24:39 +00:00
Daniel Jasper 3e9218e50a Fix a bug in the line merging.
If the first line of a merge would exactly fit into the column limit,
an unsigned overflow made us not break.

llvm-svn: 172426
2013-01-14 16:02:06 +00:00
Daniel Jasper 2ab0d01a8e Fix bug that would lead to joining preprocessor directives.
Before: #include "a.h" #include "b.h"
After:  #include "a.h"
        #include "b.h"
llvm-svn: 172424
2013-01-14 15:52:06 +00:00
Daniel Jasper 39825eaff5 Put simple preprocessor directives on a single line.
Before: #define A  \
          A
After:  #define A A
llvm-svn: 172423
2013-01-14 15:40:57 +00:00
Daniel Jasper 25837aa666 Put short if statements on a single line.
Before: if (a)
          return;
After:  if (a) return;

Not yet sure, whether this is always desired, but we can add options and
make this a style parameter as we go along.

llvm-svn: 172413
2013-01-14 14:14:23 +00:00
Daniel Jasper f1e4b7d750 Refactor datastructure used in clang-format.
Main difference, add an AnnotatedLine class to hold information about a
line while formatting. At the same time degrade the UnwrappedLine class
to a class solely used for communicating between the UnwrappedLineParser
and the Formatter.

No functional changes intended.

llvm-svn: 172403
2013-01-14 13:08:07 +00:00
Daniel Jasper 13f23e17c7 Improve understanding post increment and decrement.
Before: (a->f()) ++;
        a[42] ++;
After:  (a->f())++;
        a[42]++;
llvm-svn: 172400
2013-01-14 12:18:19 +00:00
Alexander Kornienko 116ba68220 Custom DiagnosticConsumer parameter of reformat() + silence diagnostics in unit tests.
Summary:
Added tests for clang-format diagnostics. Added DiagnosticConsumer
argument to clang::format::reformat().

Reviewers: klimek, djasper

Reviewed By: djasper

CC: cfe-commits, thakis, rafael.espindola

Differential Revision: http://llvm-reviews.chandlerc.com/D290

llvm-svn: 172399
2013-01-14 11:34:14 +00:00
Daniel Jasper 942ee72aff Stronger respect the input codes line breaks wrt. comments.
clang-format should not change whether or not there is a line break
before a line comment as this strongly influences the percieved binding.

User input: void f(int a,
                   // b is awesome
		   int b);
            void g(int a, // a is awesome
		   int b);
Before:     void f(int a, // b is awesome
                   int b);
            void g(int a, // a is awesome
		   int b);
After:      <unchanged from input>

llvm-svn: 172361
2013-01-13 16:10:20 +00:00
Daniel Jasper 48cb3b97c7 Always put a space after ",".
I am not aware of a case where that would be wrong. The specific case I
am fixing are function parameters wrapped in parenthesis (e.g. in
macros).

Before: function(a,(b));
After:  function(a, (b));
llvm-svn: 172351
2013-01-13 08:19:51 +00:00
Daniel Jasper 5ef433fc0c Don't put spaces around hyphens in include paths.
Before: #include <a - a>
After:  #include <a-a>
llvm-svn: 172350
2013-01-13 08:12:18 +00:00
Daniel Jasper ef906a9c67 Improve identification of c-style casts.
A ")" before any of "=", "{" or ";" won't be a cast. This fixes issues
with the formatting of unnamed parameters.

Before: void f(int *){}
After:  void f(int *) {}
llvm-svn: 172349
2013-01-13 08:01:36 +00:00
Nico Weber 2827a7ec6b Formatter: Don't insert a space before unary operators after selector names.
Before:
  [color getRed: &r green: &g blue: &b alpha: &a];

Now:
  [color getRed:&r green:&g blue:&b alpha:&a];

llvm-svn: 172337
2013-01-12 23:48:49 +00:00
Nico Weber 92c0539135 Formatter: Remove debugging junk I accidentally landed in r172333.
llvm-svn: 172334
2013-01-12 22:51:13 +00:00
Nico Weber c9d7361173 Formatter: Prefer breaking before ObjC selector names over breaking at their ':'
Before:
  if ((self = [super initWithContentRect:contentRect styleMask:
                  styleMask backing:NSBackingStoreBuffered defer:YES])) {

Now:
  if ((self = [super initWithContentRect:contentRect styleMask:styleMask
                  backing:NSBackingStoreBuffered defer:YES])) {

llvm-svn: 172333
2013-01-12 22:48:47 +00:00
Dmitri Gribenko f857950d39 Remove useless 'llvm::' qualifier from names like StringRef and others that are
brought into 'clang' namespace by clang/Basic/LLVM.h

llvm-svn: 172323
2013-01-12 19:30:44 +00:00
Rafael Espindola 8f1187a11b Remove unused private field.
llvm-svn: 172314
2013-01-12 14:22:42 +00:00
Daniel Jasper 7b7877ad7d Fix incorrect comparison operator causing loooong formatting times.
llvm-svn: 172308
2013-01-12 07:36:22 +00:00
Nico Weber cb465dcb1d Formatter: Remove an always-false condition.
canBreakBefore() does not allow breaking after ':' for LT_ObjCMethodDecl lines,
so if Newline is true in addTokenToState() for ':' then LT_ObjCMethodDecl
cannot be set. No functionality change.

llvm-svn: 172307
2013-01-12 07:05:25 +00:00
Nico Weber c7a56342bd Formatter: Remove a redundant CurrentLineType check.
The containing if checks for this already. No functionality change.

llvm-svn: 172306
2013-01-12 07:00:16 +00:00
Nico Weber a7252d836a Formatter: Initial support for formatting Objective-C method expressions.
This follows the approach suggested by djasper in PR14911: When a '[' is         
seen that's at the start of a line, follows a binary operator, or follows one    
of : [ ( return throw, that '[' and its closing ']' are marked as
TT_ObjCMethodExpr and every ':' in that range that isn't part of a ternary
?: is marked as TT_ObjCMethodExpr as well.

Update the layout routines to not output spaces around ':' tokens that are
marked TT_ObjCMethodExpr, and only allow breaking after such tokens, not
before.

Before:
    [self adjustButton : closeButton_ ofKind : NSWindowCloseButton];

Now:
    [self adjustButton:closeButton_ ofKind:NSWindowCloseButton];

llvm-svn: 172304
2013-01-12 06:18:40 +00:00
Nico Weber eee7b81a16 Formatter: * and & are binary operators before ( and [.
llvm-svn: 172303
2013-01-12 05:50:48 +00:00
Nico Weber 5dafd4a7ae Formatter: * and & are binary operators after ) and ].
llvm-svn: 172302
2013-01-12 05:47:16 +00:00
Nico Weber 63a54eb766 Formatter: + and - after { are unary operators.
llvm-svn: 172301
2013-01-12 05:41:23 +00:00
Nico Weber a21aaae7b3 Formatter: Format ObjC static and instance methods consistently, add a test for that.
llvm-svn: 172254
2013-01-11 21:14:08 +00:00
Manuel Klimek 2acb7b7bb1 Fix single-line optimization for ObjC.
Puts blocks always into multiple lines when they start with an ObjC
keyword or minus.

llvm-svn: 172238
2013-01-11 19:17:44 +00:00
Manuel Klimek f4ab9ef34c Implements pulling simple blocks into a single line.
void f() { return 42; }

The final change that implements the feature.

llvm-svn: 172225
2013-01-11 17:54:10 +00:00
Daniel Jasper d6a947f75f Correct spacing around new and delete.
This fixes llvm.org/PR14913.

Before:  A *a = new(placement) A;
After:   A *a = new (placement) A;
llvm-svn: 172212
2013-01-11 16:09:04 +00:00
Daniel Jasper fd8c4b1321 Improve handling of trailing declaration annotations.
Before:
void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) GUARDED_BY(
    aaaaaaaaaaaaa);

After:
void aaaaaaaaaaaa(int aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
    GUARDED_BY(aaaaaaaaaaaaa);

Also did some formatting cleanups with clang-format on the way.

llvm-svn: 172200
2013-01-11 14:23:32 +00:00
Daniel Jasper 2408a8c755 Improved formatting of constructor initializers
Added option to put each constructor initializer on its own line
if not all initializers fit on a single line. Enabling this for
Google style now as the style guide (arguable) suggests it. Not
sure whether we also want it for LLVM.

llvm-svn: 172196
2013-01-11 11:37:55 +00:00
Daniel Jasper 337816e48a Refactor IndentState into two classes.
As we keep adding more stuff to it, this structure is easier to
maintain. At one point we might think about making it an actual
class with specific accessors, etc.

llvm-svn: 172188
2013-01-11 10:22:12 +00:00
Nico Weber 9efe291fa8 Formatter: Put spaces in ObjC method decls in the right place for Google style.
Objective-C method declarations look like this:

- (returntype)name:(type)argname anothername:(type)arg2name;

In google style, there's no space after the leading '-' but one after
"(returntype)" instead (but none after the argument types), see
http://google-styleguide.googlecode.com/svn/trunk/objcguide.xml#Method_Declarations_and_Definitions

Not inserting the space after '-' is easy, but to insert the space after the
return type, the formatter needs to know that a closing parenthesis ends the
return type. To do this, I tweaked the code in parse() to check for this, which
in turn required moving detection of TT_ObjCMethodSpecifier from annotate() to
parse(), because parse() runs before annotate().

(To keep things interesting, the return type is optional, but it's almost
always there in practice.)

http://llvm-reviews.chandlerc.com/D280

llvm-svn: 172140
2013-01-10 23:11:41 +00:00
Nico Weber a2a8495e19 Formatter: No spaces around '=' in @property lines.
Before:
@property(assign, getter = isEditable) BOOL editable;

Now:
@property(assign, getter=isEditable) BOOL editable;

It'd be nice if some Apple person could let me know if spaces are preferred
around '=' in @synthesize lines (see FIXME in the test).

llvm-svn: 172110
2013-01-10 21:30:42 +00:00
Nico Weber a608775ba2 Formatting: In @implementation etc lines, put a space before protocol lists.
Don't do this in Google style though:
http://google-styleguide.googlecode.com/svn/trunk/objcguide.xml#Protocols

Most other places (function declarations, variable declarations) still get
this wrong, and since this looks very similiar to template instantiations to
the lexer (`id <MyProtocol> a = ...`), it's going to be hard to fix in some
places.

llvm-svn: 172099
2013-01-10 20:12:55 +00:00
Manuel Klimek 51bd6ec142 Refactoring the outermost structure of the formatter.
This is the last step of pure shuffling stuff around, the next step will
be the actual feature.

llvm-svn: 172098
2013-01-10 19:49:59 +00:00
Nico Weber a1a5abd5b1 Formatter: Don't put a space in ObjC number literals like @+50
Before:
@ -4.5

Now:
@-4.5

llvm-svn: 172095
2013-01-10 19:36:35 +00:00
Nico Weber 2bb0074232 Formatter: Add space before '(' in @implemenation, @interface, @protocol lines
The first token in @implementation, @interface, and @protocol lines is now
marked TT_ObjCDecl, and lines starting with a TT_ObjCDecl token are now marked
LT_ObjCMethodDecl.

llvm-svn: 172093
2013-01-10 19:19:14 +00:00
Manuel Klimek b2c6dbec52 Pull calculation whether a line fits one level up.
This is the next step towards being able to configure multiple unwrapped
lines into one.

llvm-svn: 172092
2013-01-10 19:17:33 +00:00
Manuel Klimek 0b689fd68d Pulling formatFirstToken one level up.
This prepares the code for single line optimizations and changes the
dependencies between single-line-formats to the indent of the first
token.

Conceptually, the first token is "between" the lines anyway, as the
whitespace for the first token includes the previous end-of-line, which
needs to be escaped when inside a preprocessor directive.

llvm-svn: 172083
2013-01-10 18:45:26 +00:00
Manuel Klimek 0ddd57a17b Fixes layout of right braces.
We now decide whether a newline should go before the closing brace
depending on whether a newline was inserted after the opening brace.

For example, we now insert a newline before '};' in:
static SomeClass WithALoooooooooooooooooooongName = {
  100000000, \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\"
};
... while not inserting a newline here:
static SomeClass = { a, b, c, d, e, f, g, h, i, j,
                     looooooooooooooooooooooooooooooooooongname,
                     looooooooooooooooooooooooooooooong };

Also fixes the formating of (column limit 25):
int x = {
  avariable,
  b(alongervariable)
};

llvm-svn: 172076
2013-01-10 15:58:26 +00:00
Alexander Kornienko 5b7157ac8d Basic support for diagnostics.
Summary: Uses DiagnosticsEngine to output diagnostics.

Reviewers: djasper, klimek

Reviewed By: djasper

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D278

llvm-svn: 172071
2013-01-10 15:05:09 +00:00
Manuel Klimek 73a2fdf232 Fixes formatting of function calls etc inside an initializer list.
We're now formatting (column limit 25):
int x = {
  avariable,
  b(alongervariable) };

This also fixes:
Aaa({
  int i;
}, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb,
                                    ccccccccccccccccc));
... where we would previously break after the '},'.

Putting the closing curly into an extra line when there's a break
directly after the first curly will be done in a subsequent patch.

Paired with djasper.

llvm-svn: 172070
2013-01-10 14:36:46 +00:00
Manuel Klimek e7d10a1f50 Do not add newline in empty blocks.
void f() {}
now gets formatted in one line.

llvm-svn: 172067
2013-01-10 13:24:24 +00:00
Daniel Jasper c1fa281325 Improvements to function type and ObjC block formatting.
Before: int (^myBlock) (int) = ^(int num) {}
        A<void ()>;
	int (*b)(int);

After:  int (^myBlock)(int) = ^(int num) {}
        A<void()>;
	int(*b)(int);

For function types and function pointer types, this patch only makes
the behavior consistent (for types that are keywords and other types).
For the latter function pointer type declarations, we'll probably
want to add a space after "int".

Also added LangOpts.Bool = 1, so we handle "A<bool()>" appropriately
Moved the LangOpts-settings to a public place for use by tests
and clang-format binary.

llvm-svn: 172065
2013-01-10 13:08:12 +00:00