Commit Graph

3027 Commits

Author SHA1 Message Date
George Karpenkov a763fdfadd [ASTMatcher] Extend hasAnyArgument to ObjCMessageExpr
Currently hasArgument works with both ObjC messages and function calls,
but not hasAnyArgument.
This patch fixes that discrepancy, as it's often more convenient to use
hasAnyArgument.

On a more general note, it would be great to have a common superclass
for objc-call and function call, and a matcher matching that, but that's
probably a job for another commit.

Differential Revision: https://reviews.llvm.org/D44169

llvm-svn: 326865
2018-03-07 02:32:44 +00:00
Ben Hamilton 1d6c6ee1cf [clang-format] Improve detection of ObjC for-in statements
Summary:
Previously, clang-format would detect the following as an
Objective-C for-in statement:

  for (int x = in.value(); ...) {}

because the logic only decided a for-loop was definitely *not*
an Objective-C for-in loop after it saw a semicolon or a colon.

To fix this, I delayed the decision of whether this was a for-in
statement until after we found the matching right-paren, at which
point we know if we've seen a semicolon or not.

Test Plan: New tests added. Ran tests with:
  make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: krasimir, jolesiak

Reviewed By: jolesiak

Subscribers: djasper, cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D43904

llvm-svn: 326815
2018-03-06 17:21:42 +00:00
Krasimir Georgiev 446d6ec996 [clang-format] fix handling of consecutive unary operators
Summary:
Code that used to be formatted as `if (! + object) {` is now formatted as `if (!+object) {`
(we have a particular object in our codebase where unary `operator+` is overloaded to return the underlying value, which in this case is a `bool`)

We still preserve the TypeScript behavior where `!` is a trailing non-null operator. (This is already tested by an existing unit test in `FormatTestJS.cpp`)

It doesn't appear like handling of consecutive unary operators are tested in general, so I added another test for completeness

Patch contributed by @kevinl!

Reviewers: krasimir

Reviewed By: krasimir

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43312

llvm-svn: 326792
2018-03-06 13:56:28 +00:00
Alexey Sotkin aba98fc92e Add possibility to specify output stream for CompilerInstance
Patch by: krisb

Reviewers: teemperor

Reviewed By: teemperor

Subscribers: klimek, mgorny, cfe-commits

Differential Revision: https://reviews.llvm.org/D43809

llvm-svn: 326566
2018-03-02 12:11:40 +00:00
Francois Ferrand 2a9ea781f3 [clang-format] Add SpaceBeforeColon option
Summary:
When disabled, this option allows removing the space before colon,
making it act more like the semi-colon. When enabled (default), the
current behavior is not affected.

This mostly affects C++11 loop, initializer list, inheritance list and
container literals:

  class Foo: Bar {}
  Foo::Foo(): a(a) {}
  for (auto i: myList) {}
  f({a: 1, b: 2, c: 3});

Reviewers: krasimir, djasper

Reviewed By: djasper

Subscribers: xvallspl, teemperor, karies, cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D32525

llvm-svn: 326426
2018-03-01 10:09:13 +00:00
Krasimir Georgiev 0aa4b4cb2e [clang-format] Format operator key in protos
Summary: This fixes a glitch where ``operator: value`` in a text proto would mess up the underlying formatting since it gets parsed as a kw_operator instead of an identifier.

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43830

llvm-svn: 326227
2018-02-27 19:07:47 +00:00
Ben Hamilton 6e066350d8 [clang-format] Tidy up new API guessLanguage()
Summary:
This fixes a few issues djasper@ brought up in his review of D43522.

Test Plan:
  make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43598

llvm-svn: 326205
2018-02-27 15:56:40 +00:00
Roman Lebedev 497fd98af2 Revert "[Tooling] [0/1] Refactor FrontendActionFactory::create() to return std::unique_ptr<>"
This reverts commit rL326201

This broke gcc4.8 builds, compiler just segfaults:¬
http://lab.llvm.org:8011/builders/clang-atom-d525-fedora-rel/builds/14909¬
http://lab.llvm.org:8011/builders/clang-x86_64-linux-abi-test/builds/22673¬

llvm-svn: 326204
2018-02-27 15:54:55 +00:00
Roman Lebedev 6017bf4f31 [Tooling] [0/1] Refactor FrontendActionFactory::create() to return std::unique_ptr<>
Summary:
Noticed during review of D41102.

I'm not sure whether there are any principal reasons why it returns raw owning pointer,
or it is just a old code that was not updated post-C++11.

I'm not too sure what testing i should do, because `check-all` is not error clean here for some reason,
but it does not //appear// asif those failures are related to these changes.

This is clang part.
Clang-tools-extra part is D43780.

Reviewers: klimek, bkramer, alexfh, pcc

Reviewed By: alexfh

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D43779

llvm-svn: 326201
2018-02-27 15:19:20 +00:00
Francois Ferrand a2484b251b clang-format: use AfterControlStatement to format ObjC control blocks
ObjC defines `@autoreleasepool` and `@synchronized` control blocks. These
used to be formatted according to the `AfterObjCDeclaration` brace-
wrapping flag, which is not very consistent.

This patch changes the behavior to use the `AfterControlStatement` flag
instead. This should not affect the behavior unless a custom brace
wrapping mode is used.

Reviewers: krasimir, djasper, klimek, benhamilton

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D43232

llvm-svn: 326192
2018-02-27 13:48:27 +00:00
Francois Ferrand ba91c3de38 clang-format: fix formatting of ObjC @synchronized blocks
Summary:
The blocks used to be formatted using the "default" behavior, and would
thus be mistaken for function calls followed by blocks: this could lead
to unexpected inlining of the block and extra line-break before the
opening brace.

They are now formatted similarly to `@autoreleasepool` blocks, as
expected:

  @synchronized(self) {
      f();
  }

Reviewers: krasimir, djasper, klimek

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D43114

llvm-svn: 326191
2018-02-27 13:48:21 +00:00
Bjorn Pettersson 0b2f774be6 Resolve build bot problems in unittests/Format/FormatTest.cpp
Summary:
Make the new GetStyleWithEmptyFileName test case independent
of the file system used when running the test. Since the
test is supposed to use the fallback "Google" style we now
use a InMemoryFileSystem to make sure that we do not accidentaly
find a .clang-format file in the real file system. That could
for example happen when having the build directory inside the
llvm och clang repo (as there is a .clang-format file inside
the repos).

Reviewers: vsapsai, jolesiak, krasimir, benhamilton

Reviewed By: krasimir

Subscribers: uabelho, twoh, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43732

llvm-svn: 326086
2018-02-26 14:14:11 +00:00
Ben Hamilton 07e5836521 [clang-format] Fix regression when getStyle() called with empty filename
Summary:
D43522 caused an assertion failure when getStyle() was called with
an empty filename:

P8065

This adds a test to reproduce the failure and fixes the issue by
ensuring we never pass an empty filename to
Environment::CreateVirtualEnvironment().

Test Plan: New test added. Ran test with:
  % make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests
  Before diff, test failed with P8065. Now, test passes.

Reviewers: vsapsai, jolesiak, krasimir

Reviewed By: vsapsai

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43590

llvm-svn: 325722
2018-02-21 21:27:27 +00:00
Ben Hamilton 3b345c3677 [clang-format] New API guessLanguage()
Summary:
For clients which don't have a filesystem, calling getStyle() doesn't
make much sense (there's no .clang-format files to search for).

In this diff, I hoist out the language-guessing logic from getStyle()
and move it into a new API guessLanguage().

I also added support for guessing the language of files which have no
extension (they could be C++ or ObjC).

Test Plan: New tests added. Ran tests with:
  % make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: jolesiak, krasimir

Reviewed By: jolesiak, krasimir

Subscribers: klimek, cfe-commits, sammccall

Differential Revision: https://reviews.llvm.org/D43522

llvm-svn: 325691
2018-02-21 15:54:31 +00:00
Eric Liu 500e126155 [ASTMatchers] isTemplateInstantiation: also match explicit instantiation declaration.
Summary:
Example:
template <typename T> class X {}; class A {};
// Explicit instantiation declaration.
extern template class X<A>;

Reviewers: bkramer

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43567

llvm-svn: 325678
2018-02-21 13:51:27 +00:00
Krasimir Georgiev 9c5ac63785 [clang-format] Fix text proto extension scope opening detection
Summary:
This fixes the detection of scope openers in text proto extensions; previously
they were not detected correctly leading to instances like:
```
msg {
  [aa.bb
] {
key: value
}
}
```

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43469

llvm-svn: 325513
2018-02-19 16:00:21 +00:00
Krasimir Georgiev 9b2aa42f00 [clang-format] Fixup a case of text proto message attributes
Summary: This patch fixes a case where a proto message attribute is wrongly identified as an text proto extension.

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43465

llvm-svn: 325509
2018-02-19 15:31:25 +00:00
Martin Probst 110ecc7002 clang-format: [JS] fix `of` detection.
Summary:
`of` is only a keyword when after an identifier, but not when after
an actual keyword.

Before:
    return of (a, b, c);
After:
    return of(a, b, c);

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D43440

llvm-svn: 325489
2018-02-19 12:32:13 +00:00
Krasimir Georgiev b79987a95b [clang-format] Support repeated field lists in protos
Summary:
This patch adds support for list initialization of proto repeated fields:
```
keys: [1, 2, 3]
```

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43298

llvm-svn: 325252
2018-02-15 15:30:22 +00:00
Jacek Olesiak ce4f0af302 [clang-format] Improve ObjC headers detection
Summary: Detect ObjC characteristic types when they start a line and add additional keywords.

Reviewers: benhamilton

Reviewed By: benhamilton

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43124

llvm-svn: 325221
2018-02-15 08:47:56 +00:00
Krasimir Georgiev 76064a4b1e [clang-format] Recognize percents as format specifiers in protos
Summary:
Frequently, a percent in protos denotes a formatting specifier for string replacement.
Thus it is desirable to keep the percent together with what follows after it.

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43294

llvm-svn: 325159
2018-02-14 19:47:58 +00:00
Aleksei Sidorin 4c05f14271 [ASTImporter] Fix lexical DC for templated decls; support VarTemplatePartialSpecDecl
Also minor refactoring in related functions was done.

Differential Revision: https://reviews.llvm.org/D43012

llvm-svn: 325116
2018-02-14 11:18:00 +00:00
Krasimir Georgiev 4e290648ae [clang-format] Support text proto extensions
Summary:
This adds support for text proto extensions, like:
```
msg {
  [type.type/ext] {
    key: value
  }
}
```

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43180

llvm-svn: 324995
2018-02-13 10:20:39 +00:00
Adrian Prantl 01d5cbe2ea Add a unit test for Driver::getDefaultModuleCachePath().
llvm-svn: 324917
2018-02-12 17:59:54 +00:00
Krasimir Georgiev c8b461b37f [clang-format] Fix comment indentation in text protos
Summary: This patch fixes a bug where the comment indent of comments in text protos gets messed up because by default paren states get created with AlignColons = true (which makes snese for ObjC).

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43194

llvm-svn: 324896
2018-02-12 15:49:09 +00:00
Francois Ferrand 38d8013458 clang-format: keep ObjC colon alignment with short object name
Summary:
When the target object expression is short and the first selector name
is long, clang-format used to break the colon alignment:

  [I performSelectorOnMainThread:@selector(loadAccessories)
                       withObject:nil
                    waitUntilDone:false];

This happens because the colon is placed at `ContinuationIndent +
LongestObjCSelectorName`, so that any selector can be wrapped. This is
however not needed in case the longest selector is the firstone, and
not wrapped.

To overcome this, this patch does not include the first selector in
`LongestObjCSelectorName` computation (in TokenAnnotator), and lets
`ContinuationIndenter` decide how to account for the first selector
when wrapping. (Note this was already partly the case, see line 521
of ContinuationIndenter.cpp)

This way, the code gets properly aligned whenever possible without
breaking the continuation indent.

  [I performSelectorOnMainThread:@selector(loadAccessories)
                      withObject:nil
                   waitUntilDone:false];
  [I // force break
      performSelectorOnMainThread:@selector(loadAccessories)
                       withObject:nil
                    waitUntilDone:false];
  [I perform:@selector(loadAccessories)
      withSelectorOnMainThread:true
                 waitUntilDone:false];

Reviewers: krasimir, djasper, klimek

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D43121

llvm-svn: 324741
2018-02-09 15:41:56 +00:00
Ben Hamilton 09051f2925 [clang-format] Do not break Objective-C string literals inside array literals
Summary:
Concatenating Objective-C string literals inside an array literal
raises the warning -Wobjc-string-concatenation (which is enabled by default).

clang-format currently splits and concatenates string literals like
the following:

  NSArray *myArray = @[ @"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" ];

into:

  NSArray *myArray =
        @[ @"aaaaaaaaaaaaaaaaaaaaaaaaaaaa"
           @"aaaaaaaaa" ];

which raises the warning. This is https://bugs.llvm.org/show_bug.cgi?id=36153 .

The options I can think of to fix this are:

1) Have clang-format disable Wobjc-string-concatenation by emitting
pragmas around the formatted code
2) Have clang-format wrap the string literals in a macro (which
disables the warning)
3) Disable string splitting for Objective-C string literals inside
array literals

I think 1) has no precedent, and I couldn't find a good
identity() macro for 2). So, this diff implements 3).

Test Plan: make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: jolesiak, stephanemoore, djasper

Reviewed By: jolesiak

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42704

llvm-svn: 324618
2018-02-08 16:07:25 +00:00
Krasimir Georgiev 374e6de8e0 [clang-format] Do not break before long string literals in protos
Summary:
This patch is a follow-up to r323319 (which disables string literal breaking for
text protos) and it disables breaking before long string literals.

For example this:
```
keyyyyy: "long string literal"
```
used to get broken into:
```
keyyyyy:
    "long string literal"
```

While at it, I also enabled it for LK_Proto and fixed a bug in the mustBreak code.

Reviewers: djasper, sammccall

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42957

llvm-svn: 324591
2018-02-08 10:47:12 +00:00
Ben Hamilton 3a47fddfd3 [clang-format] Set ObjCBinPackProtocolList to Never for google style
Summary:
This is split off from D42650, and sets ObjCBinPackProtocolList
to Never for the google style.

Depends On D42650

Test Plan: New tests added. make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: krasimir, jolesiak, stephanemoore

Reviewed By: krasimir, jolesiak, stephanemoore

Subscribers: klimek, cfe-commits, hokein, Wizard

Differential Revision: https://reviews.llvm.org/D42708

llvm-svn: 324553
2018-02-08 01:49:10 +00:00
Jacek Olesiak fb7f5c08b9 [clang-format] Fix ObjC message arguments formatting.
Summary:
Fixes formatting of ObjC message arguments when inline block is a first
argument.

Having inline block as a first argument when method has multiple parameters is
discouraged by Apple:
"It’s best practice to use only one block argument to a method. If the
method also needs other non-block arguments, the block should come last"
(https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/WorkingwithBlocks/WorkingwithBlocks.html#//apple_ref/doc/uid/TP40011210-CH8-SW7),
it should be correctly formatted nevertheless.

Current formatting:
```
[object blockArgument:^{
  a = 42;
}
    anotherArg:42];
```

Fixed (colon alignment):
```
[object
  blockArgument:^{
    a = 42;
  }
     anotherArg:42];
```

Test Plan: make -j12 FormatTests && tools/clang/unittests/Format/FormatTests

Reviewers: krasimir, benhamilton

Reviewed By: krasimir, benhamilton

Subscribers: benhamilton, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42493

llvm-svn: 324469
2018-02-07 10:35:08 +00:00
Ben Hamilton 56d1c01999 [clang-format] Add more tests for Objective-C 2.0 generic alignment
Summary:
In r236412, @djasper added a comment:

    // FIXME: We likely want to do this for more combinations of brackets.
    // Verify that it is wanted for ObjC, too.

In D42650, @stephanemoore asked me to confirm this.

This followup to D42650 adds more tests to verify the relative
alignment behavior for Objective-C 2.0 generics passed to functions
and removes the second half of the FIXME comment.

Test Plan:
  make -j12 FormatTests && \
  ./tools/clang/unittests/Format/FormatTests --gtest_filter=FormatTestObjC.\*

Reviewers: stephanemoore, jolesiak, djasper

Reviewed By: jolesiak

Subscribers: klimek, cfe-commits, djasper, stephanemoore, krasimir

Differential Revision: https://reviews.llvm.org/D42864

llvm-svn: 324364
2018-02-06 18:01:47 +00:00
Sylvestre Ledru f8586ae80f Unittests misc. typos
By luz.paz

llvm-svn: 324342
2018-02-06 13:12:29 +00:00
Krasimir Georgiev a79d62d2f5 [clang-format] Adds space around angle brackets in text protos
Summary:
This patch adds spaces around angle brackets in text proto Google style.
Previously these were detected as template openers and closers, which happened
to have the expected effect. Now we detect them as scope openers and closers
similarly to the way braces are handled in this context.

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42727

llvm-svn: 324337
2018-02-06 11:34:34 +00:00
Mark Zeren 1c3afaf50a [clang-format] Re-land: Fixup #include guard indents after parseFile()
Summary:
When a preprocessor indent closes after the last line of normal code we do not
correctly fixup include guard indents. For example:

  #ifndef HEADER_H
  #define HEADER_H
  #if 1
  int i;
  #  define A 0
  #endif
  #endif

incorrectly reformats to:

  #ifndef HEADER_H
  #define HEADER_H
  #if 1
  int i;
  #    define A 0
  #  endif
  #endif

To resolve this issue we must fixup levels after parseFile(). Delaying
the fixup introduces a new state, so consolidate include guard search
state into an enum.

Reviewers: krasimir, klimek

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D42035

llvm-svn: 324246
2018-02-05 15:59:00 +00:00
Mark Zeren b0cc6ed29c Revert "[clang-format] Fixup #include guard indents after parseFile()"
This reverts r324238 | mzeren-vmw | 2018-02-05 06:35:54 -0800 (Mon, 05 Feb 2018) | 35 lines

Incorrect version pushed upstream.

llvm-svn: 324239
2018-02-05 14:47:04 +00:00
Mark Zeren 0dc13cdcae [clang-format] Fixup #include guard indents after parseFile()
Summary:
When a preprocessor indent closes after the last line of normal code we do not
correctly fixup include guard indents. For example:

  #ifndef HEADER_H
  #define HEADER_H
  #if 1
  int i;
  #  define A 0
  #endif
  #endif

incorrectly reformats to:

  #ifndef HEADER_H
  #define HEADER_H
  #if 1
  int i;
  #    define A 0
  #  endif
  #endif

To resolve this issue we must fixup levels after parseFile(). Delaying
the fixup introduces a new state, so consolidate include guard search
state into an enum.

Reviewers: krasimir, klimek

Reviewed By: krasimir

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D42035

llvm-svn: 324238
2018-02-05 14:35:54 +00:00
Ben Hamilton 4dc658ca52 [clang-format] New format param ObjCBinPackProtocolList
Summary:
This is an alternative approach to D42014 after some
investigation by stephanemoore@ and myself.

Previously, the format parameter `BinPackParameters` controlled both
C function parameter list bin-packing and Objective-C protocol conformance
list bin-packing.

We found in the Google style, some teams were changing
`BinPackParameters` from its default (`true`) to `false` so they could
lay out Objective-C protocol conformance list items one-per-line
instead of bin-packing them into as few lines as possible.

To allow teams to use one-per-line Objective-C protocol lists without
changing bin-packing for other areas like C function parameter lists,
this diff introduces a new LibFormat parameter
`ObjCBinPackProtocolList` to control the behavior just for ObjC
protocol conformance lists.

The new parameter is an enum which defaults to `Auto` to keep the
previous behavior (delegating to `BinPackParameters`).

Depends On D42649

Test Plan: New tests added. make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: jolesiak, stephanemoore, djasper

Reviewed By: stephanemoore

Subscribers: Wizard, hokein, cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D42650

llvm-svn: 324131
2018-02-02 20:15:14 +00:00
Sam McCall 34f9d3fe2a [AST] namespace ns { extern "C" { int X; }} prints as "ns::X", not as "X"
llvm-svn: 324081
2018-02-02 13:34:47 +00:00
Mark Zeren d2b2ac6886 [clang-format] Align preprocessor comments with #
Summary:
r312125, which introduced preprocessor indentation, shipped with a known
issue where "indentation of comments immediately before indented
preprocessor lines is toggled on each run". For example these two forms
toggle:

  #ifndef HEADER_H
  #define HEADER_H
  #if 1
  // comment
  #   define A 0
  #endif
  #endif

  #ifndef HEADER_H
  #define HEADER_H
  #if 1
     // comment
  #   define A 0
  #endif
  #endif

This happens because we check vertical alignment against the '#' yet
indent to the level of the 'define'. This patch resolves this issue by
aligning against the '#'.

Reviewers: krasimir, klimek, djasper

Reviewed By: krasimir

Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D42408

llvm-svn: 323904
2018-01-31 20:05:50 +00:00
Krasimir Georgiev c209180828 [clang-format] Adds space around braces in text protos
Summary:
This patch modifies the text proto Google style to add spaces around braces.

I investigated using something different than Cpp11BracedListStyle, but it turns out it's what we want and also the java and js styles also depend on that.

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42685

llvm-svn: 323860
2018-01-31 10:14:10 +00:00
Ben Hamilton 5dd4018bfc [clang-format] Add more tests for ObjC protocol list formatting behavior
Summary:
The existing unit tests in FormatTestObjC.cpp didn't fully cover
all the cases for protocol confirmance list formatting.

This extends the unit tests to more cases of protocol
conformance list formatting, especially how the behavior changes
when `BinPackParameters` changes from `true` (the default) to `false`.

Test Plan: make -j12 FormatTests && \
  ./tools/clang/unittests/Format/FormatTests --gtest_filter=FormatTestObjC.\*

Reviewers: krasimir, jolesiak, stephanemoore

Reviewed By: krasimir

Subscribers: benhamilton, klimek, cfe-commits, hokein, Wizard

Differential Revision: https://reviews.llvm.org/D42649

llvm-svn: 323684
2018-01-29 20:01:49 +00:00
Eric Liu dffb1a806c [Lexer] Support adding working directory to relative search dir for #include shortening in HeaderSearch.
Reviewers: bkramer

Subscribers: mgorny, hintonda, cfe-commits

Differential Revision: https://reviews.llvm.org/D42577

llvm-svn: 323647
2018-01-29 13:21:23 +00:00
Gabor Horvath d2c562dd0e Attempt to make the PS4 build bot happy.
llvm-svn: 323590
2018-01-27 16:38:56 +00:00
Gabor Horvath c78d99a84b [ASTImporter] Add support to import some AST nodes:
* CXXOperatorCallExpr
* SizeOfPackExpr
* DependentTemplateSpecializationType
* DependentSizedArray
* CXXTypeidExpr
* Fix importing CXXTemporaryObjectExpr

Some of the changes are based on
https://github.com/haoNoQ/clang/blob/summary-ipa-draft/lib/AST/ASTImporter.cpp

Differential Revision: https://reviews.llvm.org/D42335

llvm-svn: 323589
2018-01-27 16:11:45 +00:00
Martin Probst f8e1f5c7d3 clang-format: [JS] Prevent ASI before [ and (.
Summary:
JavaScript automatic semicolon insertion can trigger before [ and (, so
avoid breaking before them if the previous token is likely to terminate
an expression.

Reviewers: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D42570

llvm-svn: 323532
2018-01-26 15:07:49 +00:00
Aleksei Sidorin 8fc8510cb8 [ASTImporter] Support LambdaExprs and improve template support
Also, a number of style and bug fixes was done:

 *  ASTImporterTest: added sanity check for source node
 *  ExternalASTMerger: better lookup for template specializations
 *  ASTImporter: don't add templated declarations into DeclContext
 *  ASTImporter: introduce a helper, ImportTemplateArgumentListInfo getting SourceLocations
 *  ASTImporter: proper set ParmVarDecls for imported FunctionProtoTypeLoc

Differential Revision: https://reviews.llvm.org/D42301

llvm-svn: 323519
2018-01-26 11:36:54 +00:00
Eric Liu 2a27ebe670 [Tooling] Test more APIs of ToolExecutor. NFC.
llvm-svn: 323517
2018-01-26 11:10:32 +00:00
Krasimir Georgiev 91700e0793 [clang-format] Fixes indentation of inner text proto messages
Summary:
Consider the text proto:
```
message {
  sub { key: value }
}
```
Previously the first `{` was TT_Unknown, which caused the inner message to be
indented by the continuation width. This didn't happen for:
```
message {
  sub: { key: value }
}
```
This is because the code to mark the first `{` as a TT_DictLiteral was only
considering the case where it marches forward and reaches a `:`.

This patch updates this by looking not only for `:`, but also for `<` and `{`.

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42500

llvm-svn: 323419
2018-01-25 14:10:43 +00:00
Raphael Isemann be4fbcaa44 Refactor RecursiveASTVisitor test for post-order traversal
Summary:
The new test is now in the right directory with the other ASTVisitor tests and uses
now the provided TestVisitor framework.

Subscribers: hintonda, v.g.vassilev, klimek, cfe-commits, mgorny

Differential Revision: https://reviews.llvm.org/D37557

llvm-svn: 323310
2018-01-24 09:40:16 +00:00
Nico Weber c068ff72c5 clang-format: Support macros in front of @interface / @protocol for ObjC code.
llvm-svn: 323226
2018-01-23 17:10:25 +00:00
Nico Weber c29f83b79e clang-format: Support formatting Java 8 interface default methods.
llvm-svn: 323218
2018-01-23 16:30:56 +00:00
Ilya Biryukov 5da21edb35 [Tooling] Added a VFS parameter to ClangTool
Summary:
The parameter overrides the underlying vfs used by ClangTool for
filesystem operations.

Patch by Vladimir Plyashkun.

Reviewers: alexfh, ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D41947

llvm-svn: 323195
2018-01-23 12:30:02 +00:00
Krasimir Georgiev 55c23a10c2 [clang-format] Ignore UnbreakableTailLength sometimes during breaking
Summary:
This patch fixes an issue where the UnbreakableTailLength would be counted towards
the length of a token during breaking, even though we can break after the token.

For example, this proto text with column limit 20
```
# ColumnLimit: 20  V
foo: {
  bar: {
    bazoo: "aaaaaaa"
  }
}
```
was broken:
```
# ColumnLimit: 20  V
foo: {
  bar: {
    bazoo:
        "aaaaaaa"
  }
}
```
because the 2 closing `}` were counted towards the string literal's `UnbreakableTailLength`.

Reviewers: djasper

Reviewed By: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42376

llvm-svn: 323188
2018-01-23 11:26:19 +00:00
Julie Hockett 239d25a158 Add hasTrailingReturn AST matcher
Adds AST matcher for a FunctionDecl that has a trailing return type.

Differential Revision: https://reviews.llvm.org/D42273

llvm-svn: 323158
2018-01-22 22:45:23 +00:00
Krasimir Georgiev 412ed095f7 [clang-format] Adds a canonical delimiter to raw string formatting
Summary:
This patch adds canonical delimiter support to the raw string formatting.
This allows matching delimiters to be updated to the canonical one.

Reviewers: bkramer

Reviewed By: bkramer

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42187

llvm-svn: 322956
2018-01-19 16:18:47 +00:00
Krasimir Georgiev bf4cddaafb [clang-format] Fix shortening blocks in macros causing merged next line
Summary:
This patch addresses bug 36002, where a combination of options causes the line
following a short block in macro to be merged with that macro.

Reviewers: bkramer

Reviewed By: bkramer

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42298

llvm-svn: 322954
2018-01-19 16:12:37 +00:00
Ben Hamilton f84f118eb8 [ClangFormat] ObjCSpaceBeforeProtocolList should be true in the google style
Summary:
The Google style guide is neutral on whether there should be a
space before the protocol list in an Objective-C @interface or
@implementation.

The majority of Objective-C code in both Apple's public
header files and Google's open-source uses a space before
the protocol list, so this changes the google style to
default ObjCSpaceBeforeProtocolList to true.

Test Plan: make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: krasimir, djasper, klimek

Reviewed By: krasimir

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D41074

llvm-svn: 322873
2018-01-18 18:37:16 +00:00
Haojian Wu 9c3be3a4e5 [ASTMatcher] Add isScoped matcher for enumDecl.
Summary:

Reviewers: bkramer, aaron.ballman

Subscribers: aaron.ballman, cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D42185

llvm-svn: 322826
2018-01-18 09:47:57 +00:00
Roman Lebedev 6c3871b139 [ASTMatchers] Add isNoReturn() match narrower for FunctionDeclarations
Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: dblaikie, klimek, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D41455

llvm-svn: 322746
2018-01-17 19:40:55 +00:00
Ben Hamilton e2e3e67cf1 [Format] Improve ObjC header guessing heuristic
Summary:
This improves upon the previous Objective-C header guessing heuristic
from rC320479.

Now, we run the lexer on C++ header files and look for Objective-C
keywords and syntax. We also look for Foundation types.

Test Plan: make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: jolesiak, krasimir

Reviewed By: jolesiak

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42135

llvm-svn: 322690
2018-01-17 17:33:08 +00:00
Krasimir Georgiev 2537e22094 [clang-format] adds enclosing function detection to raw string formatting
Summary: This patch adds enclosing function detection to raw string formatting.

Reviewers: bkramer

Reviewed By: bkramer

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42167

llvm-svn: 322678
2018-01-17 16:17:26 +00:00
Haojian Wu 10d95c53af [Sema] Add visited contexts to CodeCompleteContext
Summary:
This would allow code completion clients to know which context is visited during Sema code completion.

Also some changes:
 * add `EnteredContext` callback in VisibleDeclConsumer.
 * add a simple unittest for sema code completion (only for visited contexts at the moment).

Reviewers: ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: mgorny, bkramer, cfe-commits

Differential Revision: https://reviews.llvm.org/D42071

llvm-svn: 322661
2018-01-17 14:29:25 +00:00
Krasimir Georgiev 4527f13a10 [clang-format] Reorganize RawStringFormat based on language
Summary:
This patch changes the structure for raw string formatting options by making it
language based (enumerate delimiters per language) as opposed to delimiter-based
(specify the language for a delimiter). The raw string formatting now uses an
appropriate style from the .clang-format file, if exists.

Reviewers: bkramer

Reviewed By: bkramer

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D42098

llvm-svn: 322634
2018-01-17 12:24:59 +00:00
Jonathan Coe 45ef5036c9 [libclang] Add PrintingPolicy for pretty printing declarations
Summary:
Introduce clang_getCursorPrettyPrinted() for pretty printing
declarations. Expose also PrintingPolicy, so the user gets more
fine-grained control of the entities being printed.

The already existing clang_getCursorDisplayName() is pretty limited -
for example, it does not handle return types, parameter names or default
arguments for function declarations. Addressing these issues in
clang_getCursorDisplayName() would mean to duplicate existing code
(e.g. clang::DeclPrinter), so rather expose new API to access the
existing functionality.

Reviewed By: jbcoe

Subscribers: cfe-commits

Tags: #clang

Patch by nik (Nikolai Kosjar)

Differential Revision: https://reviews.llvm.org/D39903

llvm-svn: 322540
2018-01-16 10:19:56 +00:00
Cameron Desrochers 3d24630c7b Fixed memory leak in unit test introduced in my previous commit r322503
llvm-svn: 322513
2018-01-15 20:37:35 +00:00
Cameron Desrochers b60f1b6d3d [PCH] Serialize skipped preprocessor ranges
The skipped preprocessor ranges are now serialized in the AST PCH file. This fixes, for example, libclang's clang_getSkippedRanges() returning zero ranges after reparsing a translation unit.

Differential Revision: https://reviews.llvm.org/D20124

llvm-svn: 322503
2018-01-15 19:14:16 +00:00
Mark Zeren 67d486508c [clang-format] [NFC] Remove comment
Remove inaccurate comment that came in with  r312125.

llvm-svn: 322448
2018-01-13 22:52:34 +00:00
Volodymyr Sapsai abb8dfc114 [Lex] Avoid out-of-bounds dereference in LexAngledStringLiteral.
Fix makes the loop in LexAngledStringLiteral more like the loops in
LexStringLiteral, LexCharConstant. When we skip a character after
backslash, we need to check if we reached the end of the file instead of
reading the next character unconditionally.

Discovered by OSS-Fuzz:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3832

rdar://problem/35572754

Reviewers: arphaman, kcc, rsmith, dexonsmith

Reviewed By: rsmith, dexonsmith

Subscribers: cfe-commits, rsmith, dexonsmith

Differential Revision: https://reviews.llvm.org/D41423

llvm-svn: 322390
2018-01-12 18:54:35 +00:00
Volodymyr Sapsai cbafa59527 [Lex] Inline a variable in test in preparation for more similar tests. NFC.
llvm-svn: 322240
2018-01-10 23:37:29 +00:00
Aleksei Sidorin e267a0f342 [ASTImporter] Support importing CXXUnresolvedConstructExpr and UnresolvedLookupExpr
* Note: This solution is based on
  https://github.com/haoNoQ/clang/blob/summary-ipa-draft/lib/AST/ASTImporter.cpp#L7605.

Patch by Peter Szecsi!

Differential Revision: https://reviews.llvm.org/D38694

llvm-svn: 322091
2018-01-09 16:40:40 +00:00
Eric Liu e25f3676b0 Add a tool executor that runs actions on all TUs in the compilation database.
Summary: Tool results are deduplicated by the result key.

Reviewers: hokein

Subscribers: klimek, mgorny, cfe-commits

Differential Revision: https://reviews.llvm.org/D41729

llvm-svn: 321864
2018-01-05 10:32:16 +00:00
Aleksei Sidorin 7f758b6af5 [ASTImporter] Support importing FunctionTemplateDecl and CXXDependentScopeMemberExpr
* Also introduces ImportTemplateArgumentListInfo facility (A. Sidorin)

This re-commits r320942 after fixing the behaviour on '-fdelayed-template-parsing'
option and adding additional checks.

Patch by Peter Szecsi!

Differential Revision: https://reviews.llvm.org/D38692

llvm-svn: 321492
2017-12-27 17:04:42 +00:00
Serge Pavlov ccdac23ab2 Unit tests for TBAA metadata generation.
Now tests for metadata created by clang involve compiling code snippets
placed into c/c++ source files and matching interesting patterns in the
obtained textual representation of IR. Writting such tests is a painful
process as metadata often form complex tree-like structures but textual
representation of IR contains only a pile of metadata at the module end.

This change implements IR matchers that may be used to match required
patterns in the binary IR representation. In this case the metadata
structure is not broken and creation of match patterns is easier.

The change adds unit tests for TBAA metadata generation.

Differential Revision: https://reviews.llvm.org/D41433

llvm-svn: 321360
2017-12-22 15:22:45 +00:00
Paul Robinson f183848ace [AST] Incorrectly qualified unscoped enumeration as template actual parameter.
An unscoped enumeration used as template argument, should not have any
qualified information about its enclosing scope, as its visibility is
global.

In the case of scoped enumerations, they must include information
about their enclosing scope.

Patch by Carlos Alberto Enciso!

Differential Revision: https://reviews.llvm.org/D39239

llvm-svn: 321312
2017-12-21 21:47:22 +00:00
Aleksei Sidorin e45ab56ef1 [ASTImporterTest] Add mandatory testing with '-fdelayed-template-parsing'
* While running ASTImporterTests, we often forget about Windows MSVC
   buildbots which enable '-fdelayed-template-parsing' by default.
   This leads to AST import errors because templates are not parsed
   and corresponding parts of AST are not built so importer cannot import them.
   It takes both reviewing time to find such issues and post-commit time
   to fix unexpected buildbot failures. To solve this issue, we enable testing
   with '-fdelayed-template-parsing' option enabled by default in addition
   to testing with default compiler options. This allows us to catch
   the problem during development.

Differential Revision: https://reviews.llvm.org/D41444

llvm-svn: 321285
2017-12-21 17:41:06 +00:00
Peter Collingbourne 8b2c8df535 Revert r320942, "[ASTImporter] Support importing FunctionTemplateDecl and CXXDependentScopeMemberExpr"
Caused a test failure on Windows:

[ RUN      ] ImportExpr.ImportCXXDependentScopeMemberExpr
C:\b\rr\tmppzcp4w\w\src\third_party\llvm\tools\clang\unittests\AST\ASTImporterTest.cpp(526): error: Value of: testImport("template <typename T> class C { T t; };" "template <typename T> void declToImport() {" "  C<T> d;" "  d.t;" "}", Lang_CXX, "", Lang_CXX, Verifier, functionTemplateDecl(has(functionDecl(has(compoundStmt( has(cxxDependentScopeMemberExpr())))))))
  Actual: false (Could not find match)
Expected: true
C:\b\rr\tmppzcp4w\w\src\third_party\llvm\tools\clang\unittests\AST\ASTImporterTest.cpp(534): error: Value of: testImport("template <typename T> class C { T t; };" "template <typename T> void declToImport() {" "  C<T> d;" "  (&d)->t;" "}", Lang_CXX, "", Lang_CXX, Verifier, functionTemplateDecl(has(functionDecl(has(compoundStmt( has(cxxDependentScopeMemberExpr())))))))
  Actual: false (Could not find match)
Expected: true
[  FAILED  ] ImportExpr.ImportCXXDependentScopeMemberExpr (37 ms)

llvm-svn: 321139
2017-12-20 01:47:08 +00:00
Aleksei Sidorin dec81835d1 [ASTImporter] Support importing FunctionTemplateDecl and CXXDependentScopeMemberExpr
* Also introduces ImportTemplateArgumentListInfo facility (A. Sidorin)

Patch by Peter Szecsi!

Differential Revision: https://reviews.llvm.org/D38692

llvm-svn: 320942
2017-12-17 14:16:17 +00:00
Ben Hamilton 5b0c3ad564 Revert "[ClangFormat] IndentWrappedFunctionNames should be true in the google ObjC style"
This reverts commit 37e69667f748e1458b46483b7c1b8f9ba33eec44.

We're going to discuss its ramifications further before making a
conclusion.

llvm-svn: 320747
2017-12-14 21:44:11 +00:00
Ben Hamilton 687e5fa936 [ClangFormat] IndentWrappedFunctionNames should be true in the google ObjC style
Summary:
If we write the following code, it goes over 100 columns, so we need to wrap it:

```
- (VeryLongReturnTypeName)veryLongMethodParameter:(VeryLongParameterName)thisIsAVeryLongParameterName
                              longMethodParameter:(LongParameterName)thisIsAlsoAnotherLongParameterName;
```

Currently, clang-format with the google style aligns the method parameter names on the first column:

```
- (VeryLongReturnTypeName)
veryLongMethodParameter:(VeryLongParameterName)thisIsAVeryLongParameterName
    longMethodParameter:(LongParameterName)thisIsAlsoAnotherLongParameterName;
```

We'd like clang-format in the google style to align these to column 4 for Objective-C:

```
- (VeryLongReturnTypeName)
    veryLongMethodParameter:(VeryLongParameterName)thisIsAVeryLongParameterName
            longMethodParameter:(LongParameterName)thisIsAlsoAnotherLongParameterName;
```

Test Plan: make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: krasimir, djasper, klimek

Reviewed By: djasper

Subscribers: cfe-commits, thakis

Differential Revision: https://reviews.llvm.org/D41195

llvm-svn: 320714
2017-12-14 16:17:38 +00:00
Richard Smith c70f1d63f8 [c++20] P0515R3: Parsing support and basic AST construction for operator <=>.
Adding the new enumerator forced a bunch more changes into this patch than I
would have liked. The -Wtautological-compare warning was extended to properly
check the new comparison operator, clang-format needed updating because it uses
precedence levels as weights for determining where to break lines (and several
operators increased their precedence levels with this change), thread-safety
analysis needed changes to build its own IL properly for the new operator.

All "real" semantic checking for this operator has been deferred to a future
patch. For now, we use the relational comparison rules and arbitrarily give
the builtin form of the operator a return type of 'void'.

llvm-svn: 320707
2017-12-14 15:16:18 +00:00
Krasimir Georgiev 11ef531b5c [clang-format] Improve ObjC headers detection.
This patch improves detection of ObjC header files.
Right now many ObjC headers, especially short ones, are categorized as C/C++.

Way of filtering still isn't the best, as most likely it should be token-based.

Contributed by jolesiak!

llvm-svn: 320479
2017-12-12 13:43:59 +00:00
Erich Keane 6c4835978a Revert 320391: Certain targets are failing, pulling back to diagnose.
llvm-svn: 320398
2017-12-11 18:14:51 +00:00
Erich Keane bb322555af For Linux/gnu compatibility, preinclude <stdc-predef.h> if the file is available
As reported in llvm bugzilla 32377.
Here’s a patch to add preinclude of stdc-predef.h.

The gcc documentation says “On GNU/Linux, <stdc-predef.h> is pre-included.” See https://gcc.gnu.org/gcc-4.8/porting_to.html;

The preinclude is inhibited with –ffreestanding.

Basically I fixed the failing test cases by adding –ffreestanding which inhibits this behavior.

I fixed all the failing tests, including some in extra/test, there's a separate patch for that which is linked here

Note: this is a recommit after a test failure took down the original (r318669)

Patch By: mibintc
Differential Revision: https://reviews.llvm.org/D34158

llvm-svn: 320391
2017-12-11 17:36:42 +00:00
Taewook Oh cebac48bf7 Stringizing raw string literals containing newline
Summary: This patch implements 4.3 of http://open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4220.pdf. If a raw string contains a newline character, replace each newline character with the \n escape code. Without this patch, included test case (macro_raw_string.cpp) results compilation failure.

Reviewers: rsmith, doug.gregor, jkorous-apple

Reviewed By: jkorous-apple

Subscribers: jkorous-apple, vsapsai, cfe-commits

Differential Revision: https://reviews.llvm.org/D39279

llvm-svn: 319904
2017-12-06 17:00:53 +00:00
Shoaib Meenai d806af3499 [CMake] Use PRIVATE in target_link_libraries for executables
We currently use target_link_libraries without an explicit scope
specifier (INTERFACE, PRIVATE or PUBLIC) when linking executables.
Dependencies added in this way apply to both the target and its
dependencies, i.e. they become part of the executable's link interface
and are transitive.

Transitive dependencies generally don't make sense for executables,
since you wouldn't normally be linking against an executable. This also
causes issues for generating install export files when using
LLVM_DISTRIBUTION_COMPONENTS. For example, clang has a lot of LLVM
library dependencies, which are currently added as interface
dependencies. If clang is in the distribution components but the LLVM
libraries it depends on aren't (which is a perfectly legitimate use case
if the LLVM libraries are being built static and there are therefore no
run-time dependencies on them), CMake will complain about the LLVM
libraries not being in export set when attempting to generate the
install export file for clang. This is reasonable behavior on CMake's
part, and the right thing is for LLVM's build system to explicitly use
PRIVATE dependencies for executables.

Unfortunately, CMake doesn't allow you to mix and match the keyword and
non-keyword target_link_libraries signatures for a single target; i.e.,
if a single call to target_link_libraries for a particular target uses
one of the INTERFACE, PRIVATE, or PUBLIC keywords, all other calls must
also be updated to use those keywords. This means we must do this change
in a single shot. I also fully expect to have missed some instances; I
tested by enabling all the projects in the monorepo (except dragonegg),
and configuring both with and without shared libraries, on both Darwin
and Linux, but I'm planning to rely on the buildbots for other
configurations (since it should be pretty easy to fix those).

Even after this change, we still have a lot of target_link_libraries
calls that don't specify a scope keyword, mostly for shared libraries.
I'm thinking about addressing those in a follow-up, but that's a
separate change IMO.

Differential Revision: https://reviews.llvm.org/D40823

llvm-svn: 319840
2017-12-05 21:49:56 +00:00
Manuel Klimek 48c930cb1e Fix bug where we wouldn't break columns over the limit.
Before, we would not break:
  int a = foo(/* trailing */);
when the end of /* trailing */ was exactly the column limit; the reason
is that block comments can have an unbreakable tail length - in this case
2, for the trailing ");"; we would unconditionally account that when
calculating the column state at the end of the token, but not correctly
add it into the remaining column length before, as we do for string
literals.
The fix is to correctly account the trailing unbreakable sequence length
into our formatting decisions for block comments. Line comments cannot
have a trailing unbreakable sequence, so no change is needed for them.

llvm-svn: 319642
2017-12-04 08:53:16 +00:00
Aleksei Sidorin 9d8ba2e1ae [ASTImporter] Add unit tests for UsingDecl and UsingShadowDecl
Patch by Kareem Khazem!

Differential Revision: https://reviews.llvm.org/D27181

llvm-svn: 319632
2017-12-03 16:04:07 +00:00
Manuel Klimek 0b58c328d4 Better trade-off for excess characters vs. staying within the column limits.
When we break a long line like:
Column limit: 21
                      |
  // foo foo foo foo foo foo foo foo foo foo foo foo

The local decision when to allow protruding vs. breaking can lead to this
outcome (2 excess characters, 2 breaks):
  // foo foo foo foo foo
  // foo foo foo foo foo
  // foo foo

While strictly staying within the column limit leads to this strictly better
outcome (fully below the column limit, 2 breaks):
  // foo foo foo foo
  // foo foo foo foo
  // foo foo foo foo

To get an optimal solution, we would need to consider all combinations of excess
characters vs. breaking for all lines, but that would lead to a significant
increase in the search space of the algorithm for little gain.

Instead, we blindly try both approches and·select the one that leads to the
overall lower penalty.

Differential Revision: https://reviews.llvm.org/D40605

llvm-svn: 319541
2017-12-01 13:28:08 +00:00
Martin Probst 27b6603f90 clang-format: [JS] do not wrap after async/await.
Summary:
Otherwise automatic semicolon insertion can trigger, i.e. wrapping
produces invalid syntax.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D40642

llvm-svn: 319415
2017-11-30 10:25:17 +00:00
Aaron Ballman 813e36c2c1 Add the hasDefinition() AST matcher to match class declarations that also have a definition.
Patch by Julie Hockett.

llvm-svn: 319360
2017-11-29 21:21:51 +00:00
Manuel Klimek 93699f4d58 Restructure how we break tokens.
This fixes some bugs in the reflowing logic and splits out the concerns
of reflowing from BreakableToken.

Things to do after this patch:
- Refactor the breakProtrudingToken function possibly into a class, so we
  can split it up into methods that operate on the common state.
- Optimize whitespace compression when reflowing by using the next possible
  split point instead of the latest possible split point.
- Retry different strategies for reflowing (strictly staying below the
  column limit vs. allowing excess characters if possible).

Differential Revision: https://reviews.llvm.org/D40310

llvm-svn: 319314
2017-11-29 14:29:43 +00:00
Krasimir Georgiev 4c2c9c3620 [clang-format] Add option to group multiple #include blocks when sorting includes
Summary:
This patch allows grouping multiple #include blocks together and sort all includes as one big block.
Additionally, sorted includes can be regrouped after sorting based on configured categories.

Contributed by @KrzysztofKapusta!

Reviewers: krasimir

Reviewed By: krasimir

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D40288

llvm-svn: 319024
2017-11-27 13:23:45 +00:00
Aleksei Sidorin 60ccb7daf1 [ASTImporter] Support importing CXXPseudoDestructorExpr
Patch by Peter Szecsi!

Differential Revision: https://reviews.llvm.org/D38843

llvm-svn: 319015
2017-11-27 10:30:00 +00:00
Aleksei Sidorin b05f37afcb [ASTImporter] Support TypeTraitExpr
Patch by Takafumi Kubota!

Differential Revision: https://reviews.llvm.org/D39722

llvm-svn: 318998
2017-11-26 17:04:06 +00:00
Martin Probst c160cfaf66 clang-format: [JS] do not collapse short classes.
Summary:
clang-format does not collapse short records, interfaces, unions, etc.,
but fails to do so if the record is preceded by certain modifiers
(export, default, abstract, declare). This change skips over all
modifiers, and thus handles all record definitions uniformly.

Before:
    export class Foo { bar: string; }
    class Baz {
      bam: string;
    }

After:
    export class Foo {
      bar: string;
    }
    class Baz {
      bam: string;
    }

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D40430

llvm-svn: 318976
2017-11-25 09:35:33 +00:00
Martin Probst e8e27ca866 clang-format: [JS] handle semis in generic types.
Summary:
TypeScript generic type arguments can contain object (literal) types,
which in turn can contain semicolons:

    const x: Array<{a: number; b: string;} = [];

Previously, clang-format would incorrectly categorize the braced list as
a block and terminate the line at the openening `{`, and then format the
entire expression badly.

With this change, clang-format recognizes `<` preceding a `{` as
introducing a type expression. In JS, `<` comparison with an object
literal can never be true, so the chance of introducing false positives
here is very low.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D40424

llvm-svn: 318975
2017-11-25 09:33:47 +00:00
Martin Probst 6c38ef90fd clang-format: [JS] handle `for` as object label.
Summary: Previously, clang-format would fail formatting `{for: 1}`.

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D40441

llvm-svn: 318974
2017-11-25 09:24:33 +00:00
Martin Probst 7e0f25b28d clang-format: [JS] disable ASI on decorators.
Summary:
Automatic Semicolon Insertion in clang-format tries to guess if a line
wrap should insert an implicit semicolong. The previous heuristic would
not trigger ASI if a token was immediately preceded by an `@` sign:

    function foo(@Bar  // <-- does not trigger due to preceding @
                baz) {}

However decorators can have arbitrary parameters:

    function foo(@Bar(param, param, param)  // <-- precending @ missed
                baz) {}

While it would be possible to precisely find the matching `@`, just
conversatively disabling ASI for the entire line is simpler, while also
not regressing ASI substatially.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D40410

llvm-svn: 318973
2017-11-25 09:19:42 +00:00
Krasimir Georgiev f09c42857f [clang-format] Deduplicate using declarations
Summary: This deduplicated equivalent using declarations within a block.

Reviewers: bkramer

Reviewed By: bkramer

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D40435

llvm-svn: 318960
2017-11-24 18:00:01 +00:00
Martin Probst ce2bd4dfd8 clang-format: [JS] do not break in ArrayType[].
Summary:
Wrapping between the type name and the array type indicator creates
invalid syntax in TypeScript.

Before:
    const xIsALongIdent:
        YJustBarelyFitsLinex
            [];  // illegal syntax.

After:
    const xIsALongIdent:
        YJustBarelyFitsLinex[];

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D40436

llvm-svn: 318959
2017-11-24 17:05:56 +00:00