Avoid including FileManager.h from SourceManager.h

Most clients of SourceManager.h need to do things like turning source
locations into file & line number pairs, but this doesn't require
bringing in

Avoid including FileManager.h from SourceManager.h

Most clients of SourceManager.h need to do things like turning source
locations into file & line number pairs, but this doesn't require
bringing in FileManager.h and LLVM's FS headers.

The main code change here is to sink SM::createFileID into the cpp file.
I reason that this is not performance critical because it doesn't happen
on the diagnostic path, it happens along the paths of macro expansion
(could be hot) and new includes (less hot).

Saves some includes:
309 - /usr/local/google/home/rnk/llvm-project/clang/include/clang/Basic/FileManager.h
272 - /usr/local/google/home/rnk/llvm-project/clang/include/clang/Basic/FileSystemOptions.h
271 - /usr/local/google/home/rnk/llvm-project/llvm/include/llvm/Support/VirtualFileSystem.h
267 - /usr/local/google/home/rnk/llvm-project/llvm/include/llvm/Support/FileSystem.h
266 - /usr/local/google/home/rnk/llvm-project/llvm/include/llvm/Support/Chrono.h

Differential Revision: https://reviews.llvm.org/D75406

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Avoid SourceManager.h include in RawCommentList.h, add missing incs

SourceManager.h includes FileManager.h, which is expensive due to
dependencies on LLVM FS headers.

Remove dead BeforeThanCompare

Avoid SourceManager.h include in RawCommentList.h, add missing incs

SourceManager.h includes FileManager.h, which is expensive due to
dependencies on LLVM FS headers.

Remove dead BeforeThanCompare specialization.

Sink ASTContext::addComment to cpp file.

This reduces the time to compile a file that does nothing but include
ASTContext.h from ~3.4s to ~2.8s for me.

Saves these includes:
219 - ../clang/include/clang/Basic/SourceManager.h
204 - ../clang/include/clang/Basic/FileSystemOptions.h
204 - ../clang/include/clang/Basic/FileManager.h
165 - ../llvm/include/llvm/Support/VirtualFileSystem.h
164 - ../llvm/include/llvm/Support/SourceMgr.h
164 - ../llvm/include/llvm/Support/SMLoc.h
161 - ../llvm/include/llvm/Support/Path.h
141 - ../llvm/include/llvm/ADT/BitVector.h
128 - ../llvm/include/llvm/Support/MemoryBuffer.h
124 - ../llvm/include/llvm/Support/FileSystem.h
124 - ../llvm/include/llvm/Support/Chrono.h
124 - .../MSVCSTL/include/stack
122 - ../llvm/include/llvm-c/Types.h
122 - ../llvm/include/llvm/Support/NativeFormatting.h
122 - ../llvm/include/llvm/Support/FormatProviders.h
122 - ../llvm/include/llvm/Support/CBindingWrapping.h
122 - .../MSVCSTL/include/xtimec.h
122 - .../MSVCSTL/include/ratio
122 - .../MSVCSTL/include/chrono
121 - ../llvm/include/llvm/Support/FormatVariadicDetails.h
118 - ../llvm/include/llvm/Support/MD5.h
109 - .../MSVCSTL/include/deque
105 - ../llvm/include/llvm/Support/Host.h
105 - ../llvm/include/llvm/Support/Endian.h

Reviewed By: aaron.ballman, hans

Differential Revision: https://reviews.llvm.org/D75279

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[Wdocumentation] Implement \anchor

Differential revision: https://reviews.llvm.org/D69223

Use llvm::stable_sort

llvm-svn: 359098

Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the ne

Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636

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Fix clang -Wimplicit-fallthrough warnings across llvm, NFC

This patch should not introduce any behavior changes. It consists of
mostly one of two changes:
1. Replacing fall through comments with the

Fix clang -Wimplicit-fallthrough warnings across llvm, NFC

This patch should not introduce any behavior changes. It consists of
mostly one of two changes:
1. Replacing fall through comments with the LLVM_FALLTHROUGH macro
2. Inserting 'break' before falling through into a case block consisting
of only 'break'.

We were already using this warning with GCC, but its warning behaves
slightly differently. In this patch, the following differences are
relevant:
1. GCC recognizes comments that say "fall through" as annotations, clang
doesn't
2. GCC doesn't warn on "case N: foo(); default: break;", clang does
3. GCC doesn't warn when the case contains a switch, but falls through
the outer case.

I will enable the warning separately in a follow-up patch so that it can
be cleanly reverted if necessary.

Reviewers: alexfh, rsmith, lattner, rtrieu, EricWF, bollu

Differential Revision: https://reviews.llvm.org/D53950

llvm-svn: 345882

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Print enum constant values using the original source formatting
if possible when creating "Declaration" nodes in XML comments

rdar://14765746

llvm-svn: 311085

Delete unused IncompleteFormat variable, NFCi.

llvm-svn: 300841

[clang-format] Add a new flag FixNamespaceComments to FormatStyle

Summary:
This patch enables namespace end comments under a new flag FixNamespaceComments,
which is enabled for the LLVM and Google s

[clang-format] Add a new flag FixNamespaceComments to FormatStyle

Summary:
This patch enables namespace end comments under a new flag FixNamespaceComments,
which is enabled for the LLVM and Google styles.

Reviewers: djasper

Reviewed By: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D30405

llvm-svn: 296632

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Remove FormatContext from libClang as it is now unused.

llvm-svn: 286279

Revert "Remove now unnecessary FormatRewriterContext."

This reverts commit r286262. I accidentally committed it without all of
the changes.

llvm-svn: 286264

Remove now unnecessary FormatRewriterContext.

llvm-svn: 286262

[clang-format] Remove (SourceManager, FileID) variants

In Format, remove the reformat() and clean() functions taking a SourceManager
and a FileID. Keep the versions taking StringRef Code.

- there w

[clang-format] Remove (SourceManager, FileID) variants

In Format, remove the reformat() and clean() functions taking a SourceManager
and a FileID. Keep the versions taking StringRef Code.

- there was duplicated functionality
- the FileID versions were harder to use
- the clean() version is dead code anyways

Patch by Krasimir Georgiev. Thank you.

llvm-svn: 286243

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Reduce the number of implicit StringRef->std::string conversions by threading StringRef through more APIs.

No functionality change intended.

llvm-svn: 260815

Roll-back r250822.

Summary: It breaks the build for the ASTMatchers

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D13893

llvm-svn: 250827

Apply modernize-use-default to clang.

Summary: Replace empty bodies of default constructors and destructors with '= default'.

Reviewers: bkramer, klimek

Subscribers: klimek, alexfh, cfe-commits

D

Apply modernize-use-default to clang.

Summary: Replace empty bodies of default constructors and destructors with '= default'.

Reviewers: bkramer, klimek

Subscribers: klimek, alexfh, cfe-commits

Differential Revision: http://reviews.llvm.org/D13890

llvm-svn: 250822

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Replace double negation of !FileID.isInvalid() with FileID.isValid().
+couple more of double-negated !SourceLocation.isInvalid() unfixed in r249228.

llvm-svn: 249235

Remove and forbid raw_svector_ostream::flush() calls.
After r244870 flush() will only compare two null pointers and return,
doing nothing but wasting run time. The call is not required any more
as th

Remove and forbid raw_svector_ostream::flush() calls.
After r244870 flush() will only compare two null pointers and return,
doing nothing but wasting run time. The call is not required any more
as the stream and its SmallString are always in sync.

Thanks to David Blaikie for reviewing.

llvm-svn: 244928

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Format: ArrayRefize some implicit copies away.

NFC.

llvm-svn: 219000

clang-format: [JS] Support regex literals with trailing escaped slash.

Before:
var regex = / a\//; int i;

After:
var regex = /a\//;
int i;

This required pushing the Lexer into its wrapper cl

clang-format: [JS] Support regex literals with trailing escaped slash.

Before:
var regex = / a\//; int i;

After:
var regex = /a\//;
int i;

This required pushing the Lexer into its wrapper class and generating a
new one in this specific case. Otherwise, the sequence get lexed as a
//-comment. This is hacky, but I don't know a better way (short of
supporting regex literals in the Lexer).

Pushing the Lexer down seems to make all the call sites simpler.

llvm-svn: 217444

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[C++11] Use 'nullptr'.

llvm-svn: 209612

Comment parsing: remove HTML attribute validation

Since the community says that a blacklist is not good enough, and I don't have
enough time now to implement a proper whitelist, let's just remove th

Comment parsing: remove HTML attribute validation

Since the community says that a blacklist is not good enough, and I don't have
enough time now to implement a proper whitelist, let's just remove the
attribute validation.

But, nevertheless, we can still communicate in the generated XML if our parser
found an issue with the HTML. But this bit is best-effort and is specifically
called out in the schema as such.

llvm-svn: 207712

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CommentToXMLConverter: Don't use "default" to method(s). It is unavailable in msc17.

llvm-svn: 207107

Comment to XML conversion: use unique_ptr for SimpleFormatContext

llvm-svn: 207087

Fix leak introduced in r194610, found by LSan.

LSan folks: LSan pointed to
#0 0x4953e0 in operator new[](unsigned long) llvm/projects/compiler-rt/lib/asan/asan_new_delete.cc:64
#1 0x7fb82af5

Fix leak introduced in r194610, found by LSan.

LSan folks: LSan pointed to
#0 0x4953e0 in operator new[](unsigned long) llvm/projects/compiler-rt/lib/asan/asan_new_delete.cc:64
#1 0x7fb82af5372f in clang::RewriteRope::MakeRopeString(char const*, char const*) llvm/tools/clang/lib/Rewrite/Core/RewriteRope.cpp:796
instead of to the actual leak, which made tracking this down slower than
it could have been.

llvm-svn: 207031

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