Commit Graph

3810 Commits

Author SHA1 Message Date
Gabor Horvath 379613d7c7 [CFG] Fix an assertion failure with static initializers
The CFGBlock::getLastCondition was not prepared for static initializer
branches.

This patch also revamps CFG unit tests. Earlier the lifetime of the AST
was smaller than the CFG. So all the AST pointers within the CFG blocks
were dangling. This was OK, since none of the tests dereferenced those
pointers. This was, however, a timed bomb. There were patches in the
past that were reverted partially due to this problem.

Differential revision: https://reviews.llvm.org/D71791
2019-12-23 16:35:37 -08:00
Stephen Kelly 5a79cfa32d Customize simplified dumping and matching of LambdaExpr
Reviewers: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71680
2019-12-21 11:02:11 +00:00
Stephen Kelly 0378f3a903 Revert "Customize simplified dumping and matching of LambdaExpr"
This reverts commit 494b1318ca.
2019-12-20 21:33:31 +00:00
Stephen Kelly 494b1318ca Customize simplified dumping and matching of LambdaExpr
Reviewers: aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71680
2019-12-20 21:13:23 +00:00
mydeveloperday 2f209ccfbe [clang-format] C# formatting a class with inheritance followed by an attribute specifier assume its a braces initializer
Summary:
https://bugs.llvm.org/show_bug.cgi?id=44340

The rule that prevents `... {} [[....]]`  being treated as a braced initializer for C++ causes problems for C# with attributes, causing it to be incorrectly classified and then messing up the subsequent formatting. (see bug for details of formatting)

Reviewers: mitchell-stellar, klimek, sammccall

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D71769
2019-12-20 17:07:00 +00:00
Kadir Cetinkaya c2377eae28
[clang][Tooling] Prefer -x over -std when interpolating
Summary:
Currently interpolation logic prefers -std over -x. But the latter is a
more strong signal, so this patch inverts the order and only makes use of -std
if -x didn't exist.

Fixes https://github.com/clangd/clangd/issues/185

Thanks @sammccall for tracking this down!

Reviewers: sammccall

Subscribers: ilya-biryukov, usaxena95, cfe-commits, sammccall

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71727
2019-12-20 11:10:36 +01:00
Stephen Kelly 98e8f774eb Add method to ignore invisible AST nodes
Reviewers: aaron.ballman

Subscribers: mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70613
2019-12-18 22:33:23 +00:00
Stephen Kelly 84fd2bedf4 Trim trailing whitespace 2019-12-18 22:33:23 +00:00
Stephen Kelly a9f597b62e Output names in the AST in tests 2019-12-18 22:33:23 +00:00
Ilya Biryukov c1bbefef9d [Syntax] Use a hash table to search for tokens by their location
This is both more efficient and avoids corner cases in
`SourceManager::isBeforeInTranslationUnit`.

The change is trivial and clearly a performance improvement on the hot
path of building the syntax tree, so sending without review.
2019-12-18 12:24:00 +01:00
Ilya Biryukov 038f53882e [Syntax] Uppercase the first letter of the test name. NFC
To match naming style of other tests.
2019-12-18 12:20:30 +01:00
Ilya Biryukov 1ad15046dc [Syntax] Allow to mutate syntax trees
Summary:
This patch adds facilities to mutate the syntax trees and produce
corresponding text replacements.

The public interface of the syntax library now includes facilities to:
    1. perform type-safe modifications of syntax trees,
    2. compute textual replacements to apply the modifications,
    3. create syntax trees not backed by the source code.

For each of the three, we only add a few example transformations in this
patch to illustrate the idea, support for more kinds of nodes and
transformations will be done in follow-up patches.

The high-level mutation operations are implemented on top of operations
that allow to arbitrarily change the trees. They are considered to be
implementation details and are not available to the users of the
library.

Reviewers: sammccall, gribozavr2

Reviewed By: gribozavr2

Subscribers: merge_guards_bot, mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D64573
2019-12-18 12:19:03 +01:00
Gabor Marton bc5b7e21e3 recommit: [ASTImporter] Friend class decl should not be visible in its context
Summary:
In the past we had to use DeclContext::makeDeclVisibleInContext to make
friend declarations available for subsequent lookup calls and this way
we could chain (redecl) the structurally equivalent decls.
By doing this we created an AST that improperly made declarations
visible in some contexts, so the AST was malformed.
Since we use the importer specific lookup this is no longer necessary,
because with that we can find every previous nodes.

Reviewers: balazske, a_sidorin, a.sidorin, shafik

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, teemperor, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71020
2019-12-18 11:43:46 +01:00
Nico Weber 55c55f8eb8 Revert "[ASTImporter] Friend class decl should not be visible in its context"
This reverts commit 4becf68c6f.
Breaks building on Windows, see comments on D71020
2019-12-17 13:43:50 -05:00
Gabor Marton 4becf68c6f [ASTImporter] Friend class decl should not be visible in its context
Summary:
In the past we had to use DeclContext::makeDeclVisibleInContext to make
friend declarations available for subsequent lookup calls and this way
we could chain (redecl) the structurally equivalent decls.
By doing this we created an AST that improperly made declarations
visible in some contexts, so the AST was malformed.
Since we use the importer specific lookup this is no longer necessary,
because with that we can find every previous nodes.

Reviewers: balazske, a_sidorin, a.sidorin, shafik

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, teemperor, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71020
2019-12-17 14:48:55 +01:00
Kirill Bobyrev 3b9715cb21 [NFC] Fix typos in Clangd and Clang
Reviewed by: Jim

Differential Revision: https://reviews.llvm.org/D71455
2019-12-16 10:54:40 +01:00
Gabor Marton 25234fd69e [ASTImporter] Support functions with placeholder return types ...
Summary:
Support functions with placeholder return types even in cases when the type is
declared in the body of the function.
Example: auto f() { struct X{}; return X(); }

Reviewers: balazske, a_sidorin, a.sidorin, shafik

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, teemperor, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70819
2019-12-12 17:49:03 +01:00
Sam McCall 3f8da5d091 [Tooling/Syntax] Helpers to find spelled tokens touching a location.
Summary: Useful when positions are used to target nodes, with before/after ambiguity.

Reviewers: ilya-biryukov, kbobyrev

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71356
2019-12-12 12:59:50 +01:00
Ilya Biryukov 7d7789899f [Tooling] Move raw string literal out of a macro call. NFC
Should fix buildbots with some older gcc versions.
2019-12-12 10:53:20 +01:00
Ilya Biryukov be14a22b47 [Syntax] Build nodes for simple cases of top level declarations
Summary:
More complicated nodes (e.g. template declarations) will be implemented
in the follow-up patches.

Reviewers: gribozavr2

Reviewed By: gribozavr2

Subscribers: merge_guards_bot, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70856
2019-12-12 08:04:22 +01:00
Ilya Biryukov f7c8ace4a5 [CodeComplete] Fix a crash in preferred type and signature help
Summary: Null type pointers could be dereferenced in some cases.

Reviewers: kadircet, sammccall

Reviewed By: sammccall

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71329
2019-12-11 09:43:28 +01:00
Haojian Wu 6d5c273500 Reland "[AST] Traverse the class type loc inside the member type loc.""
Summary: added a unittest which causes "TL.getClassTInfo" is null.

Reviewers: ilya-biryukov

Subscribers: mgorny, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71186
2019-12-09 11:18:12 +01:00
Stephen Kelly 2e8dc8590d Add matchDynamic convenience functions
Summary: These correspond to the existing match() free functions.

Reviewers: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D54406
2019-12-07 00:01:29 +00:00
Stephen Kelly 0a717d5b5d Make it possible control matcher traversal kind with ASTContext
Summary:
This will eventually allow traversal of an AST while ignoring invisible
AST nodes.  Currently it depends on the available enum values for
TraversalKinds.  That can be extended to ignore all invisible nodes in
the future.

Reviewers: klimek, aaron.ballman

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61837
2019-12-06 23:11:32 +00:00
Raphael Isemann 164e0fc5c7 [ASTImporter] Implicitly declare parameters for imported ObjCMethodDecls
Summary:
When Sema encounters a ObjCMethodDecl definition it declares the implicit parameters for the ObjCMethodDecl.
When importing such a method with the ASTImporter we need to do the same for the imported method
otherwise we will crash when generating code (where CodeGen expects that this was called by Sema).

Note I had to implement Objective-C[++] support in Language.cpp as this is the first test for Objective-C and this
would otherwise just hit this 'not implemented' assert when running the unit test.

Reviewers: martong, a.sidorin, shafik

Reviewed By: martong

Subscribers: rnkovacs, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D71112
2019-12-06 18:50:32 +01:00
Sterling Augustine 6470497817 Revert "[AST] Traverse the class type loc inside the member type loc."
This reverts commit 7f93cb6228.

The assertion at RecursiveASTVisitor.h:1169 fails when passed a TypeLocNode.
Not sure if the correct fix is to use getTypeLocClass or something else.
2019-12-05 16:48:18 -08:00
Ilya Biryukov 242649c17c [Syntax] Show input code on tests failures. NFC 2019-12-05 16:25:35 +01:00
Haojian Wu 7f93cb6228 [AST] Traverse the class type loc inside the member type loc.
Summary:
We are missing this currently.

This would fix https://github.com/clangd/clangd/issues/216.

Reviewers: ilya-biryukov

Subscribers: mgorny, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70849
2019-12-05 15:03:30 +01:00
Kadir Cetinkaya 45ef055d4f
[clang][Tooling] Add support for .rsp files in compile_commands.json
Summary:
Add support for .rsp files.

Fixes https://github.com/clangd/clangd/issues/81

Patch By: liu hui(@lh123)

Reviewers: sammccall, ilya-biryukov, hokein, kadircet

Reviewed By: kadircet

Subscribers: merge_guards_bot, mgorny, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D70222
2019-12-04 15:13:12 +01:00
Mitchell Balan 26748a321e [clang-format] Add new option to add spaces around conditions
Summary:
This diff adds a new option SpacesAroundConditions that inserts spaces inside the braces for conditional statements.

Reviewers: klimek, owenpan, mitchell-stellar, MyDeveloperDay

Patch by: timwoj

Subscribers: rsmmr, cfe-commits

Tags: clang, clang-format

Differential Revision: https://reviews.llvm.org/D68346
2019-12-03 12:20:54 -05:00
Sam McCall c9c714c705 Reland [clangd] Rethink how SelectionTree deals with macros and #includes.
This reverts commit 905b002c13.

Avoid tricky (and invalid) comparator for std::set.
2019-12-03 17:53:43 +01:00
Nicolas Manichon cc3c935da2 Add FunctionDecl::getParameterSourceRange()
This source range covers the list of parameters of the function declaration,
including the ellipsis for a variadic function.
2019-12-03 08:21:55 -05:00
Alex Lorenz 389530524b [clang-scan-deps] do not skip empty #if/#elif in the minimizer to avoid missing `__has_include` dependencies
This patch makes the minimizer more conservative to avoid missing dependency files that are brought in by __has_include
PP expressions that occur in a condition of an #if/#elif that was previously skipped. The __has_include PP expressions
can be used in an #if/#elif either directly, or through macro expansion, so we can't detect them at the time of minimization.

Differential Revision: https://reviews.llvm.org/D70936
2019-12-02 18:47:22 -08:00
Brian Gesiak 8682d29a28 [Format] Add format check for coroutine keywords with negative numbers
Summary:
As a followup to D69144, this diff fixes the coroutine keyword spacing
for co_yield / co_returning negative numbers.

Reviewers: modocache, sammccall, Quuxplusone

Reviewed By: modocache

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69180

Patch by Jonathan Thomas (jonathoma)!
2019-11-30 15:47:58 -05:00
Sam McCall 905b002c13 Revert "[clangd] Rethink how SelectionTree deals with macros and #includes."
This reverts commit 19daa21f84.

It causes a bunch of failures on a bot that I've been unable to
reproduce so far:
http://45.33.8.238/mac/3308/step_7.txt
2019-11-29 19:59:02 +01:00
Sam McCall 19daa21f84 [clangd] Rethink how SelectionTree deals with macros and #includes.
Summary:
The exclusive-claim model is successful at resolving conflicts over tokens
between parent/child or siblings. However claims at the spelled-token
level do the wrong thing for macro expansions, where siblings can be
equally associated with the macro invocation.
Moreover, any model that only uses the endpoints in a range can fail when
a macro invocation occurs inside the node.

To address this, we use the existing TokenBuffer in more depth.
Claims are expressed in terms of expanded tokens, so there is no need to worry
about macros, includes etc.

Once we know which expanded tokens were claimed, they are mapped onto
spelled tokens for hit-testing.
This mapping is fairly flexible, currently the handling of macros is
pretty simple (map macro args onto spellings, other macro expansions onto the
macro name token).
This mapping is in principle token-by-token for correctness (though
there's some batching for performance).

The aggregation of the selection enum is now more principled as we need to be
able to aggregate several hit-test results together.

For simplicity i removed the ability to determine selectedness of TUDecl.
(That was originally implemented in 90a5bf92ff97b1, but doesn't seem to be very
important or worth the complexity any longer).

The expandedTokens(SourceLocation) helper could be added locally, but seems to
make sense on TokenBuffer.

Fixes https://github.com/clangd/clangd/issues/202
Fixes https://github.com/clangd/clangd/issues/126

Reviewers: hokein

Subscribers: MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits, ilya-biryukov

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70512
2019-11-29 15:21:13 +01:00
Ilya Biryukov e702bdb859 [Syntax] Build SimpleDeclaration node that groups multiple declarators
Summary:
Also remove the temporary TopLevelDeclaration node and add
UnknownDeclaration to represent other unknown nodes.

See the follow-up change for building more top-level declarations.
Adding declarators is also pretty involved and will be done in another
follow-up patch.

Reviewers: gribozavr2

Reviewed By: gribozavr2

Subscribers: merge_guards_bot, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70787
2019-11-29 11:39:45 +01:00
Alexandre Ganea 1abd4c94d7 [Clang] Bypass distro detection on non-Linux hosts
Skip distro detection when we're not running on Linux, or when the target triple is not Linux. This saves a few OS calls for each invocation of clang.exe.

Differential Revision: https://reviews.llvm.org/D70467
2019-11-28 17:02:06 -05:00
Yitzhak Mandelbaum 01e8dd2e7a [libTooling] Add stencil combinators for nodes that may be pointers or values.
Summary:
Adds combinators `maybeDeref` and `maybeAddressOf` to provide a uniform way to handle
nodes which may be bound to either a pointer or a value (most often in the
context of member expressions). Such polymorphism is already supported by
`access`; these combinators extend it to more general uses.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70554
2019-11-22 12:36:40 -05:00
Ilya Biryukov 2e298a6a51 [Driver] Fix a shadowing warning. NFC
Found by the following buildbot:
http://lab.llvm.org:8011/builders/clang-cmake-x86_64-sde-avx512-linux/builds/30084
2019-11-21 12:21:20 +01:00
Ilya Biryukov aa981c1802 Reland 9f3fdb0d7fab: [Driver] Use VFS to check if sanitizer blacklists exist
With updates to various LLVM tools that use SpecialCastList.

It was tempting to use RealFileSystem as the default, but that makes it
too easy to accidentally forget passing VFS in clang code.
2019-11-21 11:56:09 +01:00
Ilya Biryukov 9f3fdb0d7f Revert "[Driver] Use VFS to check if sanitizer blacklists exist"
This reverts commit ba6f906854.
Commit caused compilation errors on llvm tests. Will fix and re-land.
2019-11-21 11:31:14 +01:00
Ilya Biryukov ba6f906854 [Driver] Use VFS to check if sanitizer blacklists exist
Summary:
This is a follow-up to 590f279c45, which
moved some of the callers to use VFS.

It turned out more code in Driver calls into real filesystem APIs and
also needs an update.

Reviewers: gribozavr2, kadircet

Reviewed By: kadircet

Subscribers: ormris, mgorny, hiraditya, llvm-commits, jkorous, cfe-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70440
2019-11-21 11:00:30 +01:00
mydeveloperday 5987cc1bb5 [clang-format] fix regression in middle pointer alignment
Summary:
a75f8d98d7 introduced a regression with Middle pointer alignment,
which this patch fixes.

Reviewers: MyDeveloperDay, klimek, sammccall

Reviewed By: MyDeveloperDay, sammccall

Subscribers: cfe-commits, merge_guards_bot

Patch by: Typz

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70305
2019-11-16 14:37:47 +00:00
mydeveloperday a4a7c1259e [clang-format] Add SpaceBeforeBrackets
Summary: Adds a new option SpaceBeforeBrackets to add spaces before brackets (i.e. int a[23]; -> int a [23];)  This is present as an option in the Visual Studio C++ code formatting settings, but there was no matching setting in clang-format.

Reviewers: djasper, MyDeveloperDay, mitchell-stellar

Reviewed By: MyDeveloperDay

Subscribers: llvm-commits, cfe-commits, klimek

Patch by: Anteru

Tags: #clang, #clang-format, #llvm

Differential Revision: https://reviews.llvm.org/D6920
2019-11-16 11:54:21 +00:00
Cameron Desrochers 358eaa3dce [clang-format] Flexible line endings
Line ending detection is now set with the `DeriveLineEnding` option.
CRLF can now be used as the default line ending by setting `UseCRLF`.
When line ending detection is disabled, all line endings are converted
according to the `UseCRLF` option.

Differential Revision: https://reviews.llvm.org/D19031
2019-11-15 11:50:22 -05:00
Balázs Kéri c2f6efc732 [Clang][ASTImporter] Added visibility check for ClassTemplateDecl.
Summary:
ASTImporter makes now difference between class templates with same
name in different translation units if these are not visible outside.

Reviewers: martong, a.sidorin, shafik

Reviewed By: martong

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, teemperor, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D67543
2019-11-15 15:05:26 +01:00
Sam McCall 87054ec07b [AST] Use written names instead of `type-param-0-0` in more cases when printing types and decls.
Summary:
This doesn't cover decls in diagnostics, which use NamedDecl::getNameForDiagnostic().
(That should also be fixed later I think).

This covers some cases of https://github.com/clangd/clangd/issues/76
(hover, but not outline or sighelp)

Reviewers: hokein

Subscribers: ilya-biryukov, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70236
2019-11-15 10:40:38 +01:00
Mitchell Balan 4ee70e00b5 [clang-format] Fixed edge-case with SpacesInSquareBrackets with trailing bare "&" lambda capture.
Summary:
Lambda captures allow for a lone `&` capture, so `&]` needs to be properly handled.

`int foo = [& ]() {}` is fixed to give `int foo = [ & ]() {}`

Reviewers: MyDeveloperDay

Reviewed by: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D70249
2019-11-14 13:24:50 -05:00
Kadir Cetinkaya 16bdcc809c
[clang][Tooling] Filter flags that generate output in SyntaxOnlyAdjuster
Summary:
Flags that generate output could result in failures when creating
syntax only actions. This patch introduces initial logic for filtering out
those. The first such flag is "save-temps", which saves intermediate
files(bitcode, assembly, etc.) into a specified directory.

Fixes https://github.com/clangd/clangd/issues/191

Reviewers: hokein

Subscribers: ilya-biryukov, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70173
2019-11-13 15:03:30 +01:00
mydeveloperday 335ac2eb66 Allow additional file suffixes/extensions considered as source in main include grouping
Summary:
By additional regex match, grouping of main include can be enabled in files that are not normally considered as a C/C++ source code.
For example, this might be useful in templated code, where template implementations are being held in *Impl.hpp files.
On the occassion, 'assume-filename' option description was reworded as it was misleading. It has nothing to do with `style=file` option and it does not influence sourced style filename.

Reviewers: rsmith, ioeric, krasimir, sylvestre.ledru, MyDeveloperDay

Reviewed By: MyDeveloperDay

Subscribers: MyDeveloperDay, cfe-commits

Patch by:  furdyna

Tags: #clang

Differential Revision: https://reviews.llvm.org/D67750
2019-11-12 21:26:52 +00:00
mydeveloperday a75f8d98d7 [clang-format] [PR36294] AlwaysBreakAfterReturnType works incorrectly for some operator functions
Summary:
https://bugs.llvm.org/show_bug.cgi?id=36294

Addressing bug related to returning after return type not being honoured for some operator types.

```
$ bin/clang-format --style="{BasedOnStyle: llvm, AlwaysBreakAfterReturnType: TopLevelDefinitions}" /tmp/foo.cpp
class Foo {
public:
  bool operator!() const;
  bool operator<(Foo const &) const;
  bool operator*() const;
  bool operator->() const;
  bool operator+() const;
  bool operator-() const;
  bool f() const;
};

bool Foo::operator!() const { return true; }
bool
Foo::operator<(Foo const &) const {
  return true;
}
bool Foo::operator*() const { return true; }
bool Foo::operator->() const { return true; }
bool
Foo::operator+() const {
  return true;
}
bool
Foo::operator-() const {
  return true;
}
bool
Foo::f() const {
  return true;
}
```

Reviewers: mitchell-stellar, klimek, owenpan, sammccall, rianquinn

Reviewed By: sammccall

Subscribers: merge_guards_bot, cfe-commits

Tags: #clang-format, #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D69573
2019-11-12 09:25:00 +00:00
Yitzhak Mandelbaum 489449c28a [libTooling] Further simplify `Stencil` type and introduce `MatchComputation`.
Summary:
This revision introduces a new interface `MatchComputation` which generalizes
the `Stencil` interface and replaces the `std::function` interface of
`MatchConsumer`. With this revision, `Stencil` (as an abstraction) becomes just
one collection of implementations of
`MatchComputation<std::string>`. Correspondingly, we remove the `Stencil` class
entirely in favor of a simple type alias, deprecate `MatchConsumer` and change
all functions that accepted `MatchConsumer<std::string>` to use
`MatchComputation<std::string>` instead.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69802
2019-11-11 12:44:15 -05:00
Martin Probst 6bcd8d4a18 clang-format: [JS] test declared fields.
Summary:
TypeScript now supports declaring fields:

    class Foo {
      declare field: string;
    }

clang-format happens to already format this fine, so this change just
adds a regression test.

Reviewers: krasimir

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69972
2019-11-11 16:36:00 +01:00
Martin Probst a7638d3849 clang-format: [JS] support null operators.
Summary:
JavaScript / TypeScript is adding two new operators: the null
propagating operator `?.` and the nullish coalescing operator `??`.

    const x = foo ?? 'default';
    const z = foo?.bar?.baz;

This change adds support to lex and format both.

Reviewers: krasimir

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69971
2019-11-11 16:35:35 +01:00
Yitzhak Mandelbaum 6c683aa8d7 [libTooling] Fix breakage from change #84922 2019-11-06 11:31:35 -05:00
Yitzhak Mandelbaum 9f97480cdd [libTooling] Small changes in Transformer API.
Summary:
* Rename `transformer::change` to `transformer::changeTo`, make `change` forward
  to `changeTo` and mark it deprecated.

* Mark `transformer::text` and `transformer::selection` deprecated and migrate
  references to them in tests.

Reviewers: ilya-biryukov

Subscribers: gribozavr, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69896
2019-11-06 11:16:50 -05:00
Yitzhak Mandelbaum ce2b5cb6de [libTooling] Simplify type structure of `Stencil`s.
Summary:
Currently, stencils are defined as a sequence of `StencilParts`. This
differentiation adds an unneeded layer of complexity to the definition of
Stencils. This change significantly simplifies the type structure: a stencil is
now conceptually any object implementing `StencilInterface` and `Stencil` is
just a thin wrapper for pointers to this interface.

To account for the sequencing that was supported by the old `Stencil` type, we
introduce a sequencing class that implements `StencilInterface`. That is,
sequences are just another kind of Stencil and no longer have any special
status.

Corresponding to this change in the type structure, we change the way `cat` is
used (and defined). `cat` bundles multiple features: it builds a stencil from a
sequence of subcomponents and admits multiple different types for its arguments,
while coercing them into the right type. Previously, `cat` was also used to
coerce a single `StencilPart` into a `Stencil`. With that distinction gone, many
uses of `cat` (e.g. in the tests) are unnecessary and have, therefore, been
removed.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69613
2019-11-06 10:28:34 -05:00
Ilya Biryukov 58fa50f437 [Syntax] Add nodes for most common statements
Summary:
Most of the statements mirror the ones provided by clang AST.
Major differences are:
  - expressions are wrapped into 'ExpressionStatement' instead of being
    a subclass of statement,
  - semicolons are always consumed by the leaf expressions (return,
    expression satement, etc),
  - some clang statements are not handled yet, we wrap those into an
    UnknownStatement class, which is not present in clang.

We also define an 'Expression' and 'UnknownExpression' classes in order
to produce 'ExpressionStatement' where needed. The actual implementation
of expressions is not yet ready, it will follow later.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D63835
2019-11-06 10:56:06 +01:00
paulhoad 76ec6b1ef6 [clang-format] [PR35518] C++17 deduction guides are wrongly formatted
Summary:
see https://bugs.llvm.org/show_bug.cgi?id=35518

clang-format removes spaces around deduction guides but not trailing return types, make the consistent

```
template <typename T> S(T)->S<T>;
auto f(int, int) -> double;
```

becomes

```
template <typename T> S(T) -> S<T>;
auto f(int, int) -> double;
```

Reviewers: klimek, mitchell-stellar, owenpan, sammccall, lichray, curdeius, KyrBoh

Reviewed By: curdeius

Subscribers: merge_guards_bot, hans, lichray, cfe-commits

Tags: #clang-format, #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D69577
2019-11-06 09:34:48 +00:00
Mitchell Balan 8d7bd57526 [clang-format] Fix SpacesInSquareBrackets for Lambdas with Initial "&ref" Parameter
Summary:
This fixes an edge case in the `SpacesInSquareBrackets` option where an initial `&ref` lambda parameter is not padded with an initial space.

`int foo = [&bar ]() {}` is fixed to give `int foo = [ &bar ]() {}`

Reviewers: MyDeveloperDay, klimek, sammccall

Reviewed by: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D69649
2019-10-31 11:08:05 -04:00
paulhoad 8fa5e98fd1 [clang-format] Remove duplciate code from Invalid BOM detection
Summary:
Review comments on {D68767} asked that this duplicated code in clang-format was moved to one central location that being SourceManager (where it had originally be copied from I assume)

Moved function into static function  ContentCache::getInvalidBOM(...)  - (closest class to where it was defined before)
Updated clang-format to call this static function

Added unit tests for said new function in BasicTests

Sorry not my normal code area so may have the wrong reviewers. (but your names were on the recent history)

Reviewers: bruno, arphaman, klimek, owenpan, mitchell-stellar, dexonsmith

Reviewed By: owenpan

Subscribers: cfe-commits

Tags: #clang, #clang-format, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D68914
2019-10-24 20:24:44 +01:00
Benjamin Kramer ecc999101a [FrontendTests] Try again to make test not write an output file
Setting the output stream to nulls seems to work.

llvm-svn: 375491
2019-10-22 08:44:34 +00:00
Benjamin Kramer 2108a974f7 Revert "[FrontendTests] Don't actually run the full compiler, parsing is sufficient."
This reverts commit 375488.

llvm-svn: 375489
2019-10-22 08:37:15 +00:00
Benjamin Kramer 3ca2b17f84 [FrontendTests] Don't actually run the full compiler, parsing is sufficient.
llvm-svn: 375488
2019-10-22 08:10:51 +00:00
Scott Linder 87cb734c04 [Clang] Add VerboseOutputStream to CompilerInstance
Remove one instance of a hardcoded output stream in
CompilerInstance::ExecuteAction. There are still other cases of output
being hard-coded to standard streams in ExecuteCompilerInvocation, but
this patch covers the case when no flags like -version or -help are
passed, namely the "X warnings and Y errors generated." diagnostic.

Differential Revision: https://reviews.llvm.org/D53768

llvm-svn: 375442
2019-10-21 19:04:56 +00:00
Bjorn Pettersson 78424e5f84 Prune include of DataLayout.h from include/clang/Basic/TargetInfo.h. NFC
Summary:
Use a forward declaration of DataLayout instead of including
DataLayout.h in clangs TargetInfo.h. This reduces include
dependencies toward DataLayout.h (and other headers such as
DerivedTypes.h, Type.h that is included by DataLayout.h).

Needed to move implemantation of TargetInfo::resetDataLayout
from TargetInfo.h to TargetInfo.cpp.

Reviewers: rnk

Reviewed By: rnk

Subscribers: jvesely, nhaehnle, cfe-commits, llvm-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69262

llvm-svn: 375438
2019-10-21 17:58:14 +00:00
Brian Gesiak 7f704320b0 [Format] Add format check for throwing negative numbers
Summary:
The code `throw -1;` is currently formatted by clang-format as
`throw - 1;`. This diff adds a fix for this edge case and a test to check
for this in the future.

For context, I am looking into a related bug in the clang-formatting of
coroutine keywords: `co_yield -1;` is also reformatted in this manner
as `co_yield - 1;`. A later diff will add these changes and tests for the
`co_yield` and `co_return` keywords.

Patch by Jonathan Thomas (jonathoma)!

Reviewers: modocache, sammccall, Quuxplusone

Reviewed By: sammccall

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D69144

llvm-svn: 375258
2019-10-18 16:59:02 +00:00
Krasimir Georgiev eff2a2ab2b [clang-format] fix regression recognizing casts in Obj-C calls
Summary:
r373922 added checks for a few tokens that, following an `)` make it
unlikely that the `)` is the closing paren of a cast expression. The
specific check for `tok::l_square` there introduced a regression for
casts of Obj-C calls, like:
```
(cast)[func arg]
```
From the tests added in r373922, I believe the `tok::l_square` case is added to
capture the case where a non-cast `)` is directly followed by an
attribute specifier, like:
```
int f(int x) [[noreturn]];
```

I've specialized the code to look for such attribute specifier instead
of `tok::l_square` in general. Also, I added a regression test and moved
the test cases added in r373922 to an already existing place documenting
other instances of historically misidentified casts.

Reviewers: MyDeveloperDay

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69164

llvm-svn: 375247
2019-10-18 15:21:06 +00:00
Yitzhak Mandelbaum c14f1ea25e [libTooling] Fix r374962: add more Transformer forwarding decls.
Summary:
The move to a new, single namespace in r374962 left out some type definitions
from the old namespace and resulted in one naming conflict (`text`).  This
revision adds aliases for those definitions and removes one of the `text`
functions from the new namespace.

Reviewers: alexfh

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69036

llvm-svn: 375003
2019-10-16 14:26:20 +00:00
Yitzhak Mandelbaum 8bb47cd8c3 [libTooling] Put all Transformer declarations in a single namespace.
Summary:
This revision introduces a new namespace, `clang::transformer`, to hold
the declarations for the Transformer library.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68876

llvm-svn: 374962
2019-10-16 01:06:46 +00:00
Yitzhak Mandelbaum cf2438ec13 [libTooling] Change Stencil equality to use `toString()`
Summary:
Removes the `isEqual` method from StencilPartInterface and modifies equality to
use the string representation returned by the `toString` method for comparison.

This means the `run` and `selection` stencils return true by default, and
clients should be cautious in relying on equality operator for comparison of
stencils containing parts generated by these functions.

It also means we no longer need the custom RTTI support (typeId() and
down_cast()), so it has been removed.

Patch by Harshal T. Lehri.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68825

llvm-svn: 374552
2019-10-11 14:02:03 +00:00
Paul Hoad 3b4c8f6807 [clang-format] throws an incorrect assertion in consumeToken() formatting the MSVC stl
Summary:
An incorrect assertion is thrown when clang-formatting MSVC's STL library

```
Assertion failed: !Line.startsWith(tok::hash), file C:/llvm/llvm-project/clang/lib/Format/TokenAnnotator.cpp, line 847
Stack dump:
0.      Program arguments: C:\llvm\build\bin\clang-format.exe -i -n ./stl/inc/xkeycheck.h
```

```
Enable warning C4005 to find the forbidden define.
```

Reviewers: mitchell-stellar, STL_MSFT, klimek, krasimir

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D68707

llvm-svn: 374399
2019-10-10 17:54:47 +00:00
Yitzhak Mandelbaum fbdf83521b [libTooling] Move Transformer files to their own directory/library.
Summary:
The Transformer library has been growing inside of
lib/Tooling/Refactoring. However, it's not really related to anything else in
that directory. This revision moves all Transformer-related files into their own
include & lib directories.  A followup revision will (temporarily) add
forwarding headers to help any users migrate their code to the new location.

Reviewers: gribozavr

Subscribers: mgorny, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68637

llvm-svn: 374271
2019-10-10 02:34:47 +00:00
Krasimir Georgiev ae1b7859cb [clang-format] Update noexcept reference qualifiers detection
Summary:
r373165 fixed an issue where a templated noexcept member function with a
reference qualifier would be indented more than expected:
```
// Formatting produced with LLVM style with AlwaysBreakTemplateDeclarations: Yes

// before r373165:
struct f {
  template <class T>
      void bar() && noexcept {}
};

// after:
struct f {
  template <class T>
  void bar() && noexcept {}
};

```
The way this is done is that in the AnnotatingParser in
`lib/FormatTokenAnnotator.cpp` the determination of the usage of a `&` or `&&`
(the line in determineTokenType

```
Current.Type = determineStarAmpUsage(...
```
is not performed in some cases anymore, combining with a few additional related
checks afterwards. The net effect of these checks results in the `&` or `&&`
token to start being classified as `TT_Unknown` in cases where before `r373165`
it would be classified as `TT_UnaryOperator` or `TT_PointerOrReference` by
`determineStarAmpUsage`.

This inadvertently caused 2 classes of regressions I'm aware of:

- The address-of `&` after a function assignment would be classified as
  `TT_Unknown`, causing spaces to surround it, disregarding style options:
```
// before r373165:
void (*fun_ptr)(void) = &fun;

// after:
void (*fun_ptr)(void) = & fun;
```

- In cases where there is a function declaration list -- looking macro between
  a template line and the start of the function declaration, an `&` as part of
  the return type would be classified as `TT_Unknown`, causing spaces to
  surround it:
```
// before r373165:
template <class T>
DEPRECATED("lala")
Type& foo();

// after:
template <class T>
DEPRECATED("lala")
Type & foo();
```

In these cases the problems are rooted in the skipping of the classification of
a `&` (and similarly `&&`) by determineStarAmpUsage which effects the formatting
decisions later in the pipeline.

I've looked into the goal of r373165 and noticed that replacing `noexcept` with
`const` in the given example produces no extra indentation with the old code:
```
// before r373165:
struct f {
  template <class T>
  int foo() & const {}
};

struct f {
  template <class T>
      int foo() & noexcept {}
};
```

I investigated how clang-format annotated these two examples differently to
determine the places where the processing of both diverges in the pipeline.
There were two places where the processing diverges, causing the extra indent in
the `noexcept` case:
1. The `const` is annotated as a `TT_TrailingAnnotation`, whereas `noexcept`
   is annotated as `TT_Unknown`. I've updated the `determineTokenType` function
   to account for this by adding a missing `tok:kw_noexcept` to the clause that
   marks a token as `TT_TrailingAnnotation`.
2. The `&` in the second example is wrongly identified as `TT_BinaryOperator`
   in `determineStarAmpUsage`. This is the reason for the extra indentation --
   clang-format gets confused and thinks this is an expression.
   I've updated `determineStarAmpUsage` to check for `tok:kw_noexcept`.

With these two updates in place, the additional parsing introduced by r373165
becomes unnecessary and all added tests pass (with updates, as now clang-format
respects the style configuration for spaces around the `&` in the test
examples).
I've removed these additions and added regression tests for the cases above.

Reviewers: AndWass, MyDeveloperDay

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D68695

llvm-svn: 374172
2019-10-09 14:46:08 +00:00
Alex Lorenz a13f0da1d0 [clang-scan-deps] Improve string/character literal skipping
The existing string/character literal skipping code in the
dependency directives source minimizer has two issues:

- It doesn't stop the scanning when a newline is reached before the terminating character,
unlike the lexer which considers the token to be done (even if it's invalid) at the end of the line.

- It doesn't support whitespace between '\' and the newline when looking if the '\' is used as a line continuation character.

This commit fixes both issues.

Differential Revision: https://reviews.llvm.org/D68436

llvm-svn: 374127
2019-10-08 22:42:44 +00:00
Yitzhak Mandelbaum e4cec2d3c7 [libTooling][NFC] Fix build break in r373916.
r373916 used raw strings inside macro calls, which breaks some builds.

llvm-svn: 373928
2019-10-07 17:24:23 +00:00
Paul Hoad 2c3f73800f [clang-format] [PR27004] omits leading space for noexcept when formatting operator delete()
Summary:
clang-format is incorrectly thinking the parameter parens are part of a cast operation, this is resulting in there sometimes being not space between the paren and the noexcept (and other keywords like volatile etc..)

```
void operator++(int) noexcept;
void operator++(int &) noexcept;
void operator delete(void *, std::size_t, const std::nothrow_t &)noexcept;
```

Reviewers: klimek, owenpan, mitchell-stellar

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D68481

llvm-svn: 373922
2019-10-07 17:03:44 +00:00
Yitzhak Mandelbaum d5b983555f [libTooling] Add `toString` method to the Stencil class
Summary:
`toString` generates a string representation of the stencil.

Patch by Harshal T. Lehri.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68574

llvm-svn: 373916
2019-10-07 16:20:22 +00:00
Utkarsh Saxena edf5027689 [clang] Add test for FindNextToken in Lexer.
Reviewers: ilya-biryukov

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68565

llvm-svn: 373910
2019-10-07 14:20:46 +00:00
Gabor Marton 305a11d409 [ASTImporter][NFC] Enable disabled but passing test
RedeclChainShouldBeCorrectAmongstNamespaces

llvm-svn: 373896
2019-10-07 11:34:54 +00:00
Paul Hoad 375a84bb75 [clang-format] SpacesInSquareBrackets should affect lambdas with parameters too
Summary:
This patch makes the `SpacesInSquareBrackets` setting also apply to C++ lambdas with parameters.

Looking through the revision history, it appears support for only array brackets was added, and lambda brackets were ignored. Therefore, I am inclined to think it was simply an omission, rather than a deliberate choice.

See https://bugs.llvm.org/show_bug.cgi?id=17887 and https://reviews.llvm.org/D4944.

Reviewers: MyDeveloperDay, reuk, owenpan

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits

Patch by: mitchell-stellar

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D68473

llvm-svn: 373821
2019-10-05 09:55:23 +00:00
Paul Hoad cccf5aa081 [clang-format] C++11 braced lists should respect the SpacesInParentheses setting
Summary:
According to the clang-format documentation, "Fundamentally, C++11 braced lists are formatted exactly like function calls would be formatted in their place. If the braced list follows a name (e.g. a type or variable name), clang-format formats as if the `{}` were the parentheses of a function call with that name."

This patch furthers the treatment of C++11 braced list braces as parentheses by respecting the `SpacesInParentheses` setting.

Reviewers: MyDeveloperDay, reuk, owenpan

Reviewed By: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang-format, #clang

Patch By: mitchell-stellar

Differential Revision: https://reviews.llvm.org/D68415

llvm-svn: 373751
2019-10-04 14:25:20 +00:00
Paul Hoad ba12cec21f [clang-format] [PR43531] clang-format damages "alternative representations" for operators
Summary:
https://bugs.llvm.org/show_bug.cgi?id=43531

Fix for clang-format incorrectly handles "alternative operators" as described by https://en.cppreference.com/w/cpp/language/operator_alternative

compl = ~
not = !

these are unary operators, and clang-format will remove the space between them and a numeric constant

this incorrectly formats the following code

```
int a compl 5;
int a not 5;
```

into:

```
int a compl5;
int a not5;
```

The code adds FIXME unit tests for "alternative token" representations for {} [] and # as defined by the same link, which would require a more detailed change to the FormatTokenLexer

Reviewers: klimek, reuk, owenpan, mitchell-stellar, STL_MSFT

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D68332

llvm-svn: 373750
2019-10-04 14:16:59 +00:00
Paul Hoad a37a6dcd04 [clang-format] [PR42417] clang-format inserts a space after '->' for operator->() overloading
Summary:
https://bugs.llvm.org/show_bug.cgi?id=42417

This revision removes the extra space between the opertor-> and the parens ()

```
class Bug {
    auto operator-> () -> int*;
    auto operator++(int) -> int;
};
```

Reviewers: klimek, owenpan, byoungyoung, mitchell-stellar

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-format, #clang

Differential Revision: https://reviews.llvm.org/D68242

llvm-svn: 373746
2019-10-04 13:24:15 +00:00
Paul Hoad 4c05658354 [clang-format] [PR43338] C# clang format has space issues betweern C# only keywords
Summary:
When formatting C# there can be issues with a lack of spaces between `using (` , `foreach (` and generic types

The C# code

```
public class Foo
{
    Dictionary<string,string> foo;
}

```
will be formatted as

```
public class Foo
{
    Dictionary<string, string>foo;
                           ^^^^^   missing a space
}
```

This revision also reverts some of {D66662} in order to make this cleaner and resolve an issues seen by @owenpan that the formatting didn't add a space when not in a code block

This also transforms C# foreach commands to be seen as tok::kw_for commands (to ensure foreach gets the same Brace Wrapping behavior as for without littering the code with `if(Style.isCSharp())`

Reviewers: owenpan, klimek, russellmcc, mitchell-stellar

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D67660

llvm-svn: 373709
2019-10-04 08:10:22 +00:00
Paul Hoad a2f963bb61 [clang-format] [PR43333] Fix C# breaking before function name when using Attributes
Summary:
This is  a fix for https://bugs.llvm.org/show_bug.cgi?id=43333

This comes with 3 main parts

  - C# attributes cause function names on a new line even when AlwaysBreakAfterReturnType is set to None
  - Add AlwaysBreakAfterReturnType  to None by default in the Microsoft style,
  - C# unit tests are not using Microsoft style (which we created to define the default C# style to match a vanilla C# project).

Reviewers: owenpan, klimek, russellmcc, mitchell-stellar

Reviewed By: mitchell-stellar

Subscribers: cfe-commits

Tags: #clang-tools-extra, #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D67629

llvm-svn: 373707
2019-10-04 07:56:49 +00:00
Paul Hoad fb13e65acf [clang-format] Add ability to wrap braces after multi-line control statements
Summary:
Change the BraceWrappingFlags' AfterControlStatement from a bool to an enum with three values:

* "Never": This is the default, and does not do any brace wrapping after control statements.
* "MultiLine": This only wraps braces after multi-line control statements (this really only happens when a ColumnLimit is specified).
* "Always": This always wraps braces after control statements.

The first and last options are backwards-compatible with "false" and "true", respectively.

The new "MultiLine" option is useful for when a wrapped control statement's indentation matches the subsequent block's indentation. It makes it easier to see at a glance where the control statement ends and where the block's code begins. For example:

```
if (
  foo
  && bar )
{
  baz();
}
```

vs.

```
if (
  foo
  && bar ) {
  baz();
}
```

Short control statements (1 line) do not wrap the brace to the next line, e.g.

```
if (foo) {
  bar();
} else {
  baz();
}
```

Reviewers: sammccall, owenpan, reuk, MyDeveloperDay, klimek

Reviewed By: MyDeveloperDay

Subscribers: MyDeveloperDay, cfe-commits

Patch By: mitchell-stellar

Tags: #clang-format, #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D68296

llvm-svn: 373647
2019-10-03 18:42:31 +00:00
Yitzhak Mandelbaum e80e889695 [libTooling] Add various Stencil combinators for expressions.
Summary:
This revision adds three new Stencil combinators:
* `expression`, which idiomatically constructs the source for an expression,
  including wrapping the expression's source in parentheses if needed.
* `deref`, which constructs an idiomatic dereferencing expression.
* `addressOf`, which constructs an idiomatic address-taking expression.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D68315

llvm-svn: 373593
2019-10-03 13:01:00 +00:00
Sam McCall e503256790 [ClangFormat] Future-proof Standard option, allow floating or pinning to arbitrary lang version
Summary:
The historical context:
- clang-format was written when C++11 was current,
  and the main language-version concern was >> vs > > template-closers.
  An option was added to allow selection of the 03/11 behavior, or auto-detection.
- there was no option to choose simply "latest standard" so anyone who didn't
  ever want 03 behavior or auto-detection specified Cpp11.
- In r185149 this option started to affect lexer mode.
- no options were added to cover c++14, as parsing/formatting
  didn't change that much. The usage of Cpp11 to mean "latest" became
  codified e.g. in r206263
- c++17 added some new constructs. These were mostly backwards-compatible and so
  not used in old programs, so having no way to turn them off was OK.
- c++20 added some new constructs and keywords (e.g. co_*) that changed the
  meaning of existing programs, and people started to complain that
  the c++20 parsing couldn't be turned off.

New plan:
 - Default ('Auto') behavior remains unchanged: parse as latest, format
   template-closers based on input.
 - Add new 'Latest' option that more clearly expresses the intent "use
   modern features" that many projects have chosen for their .clang-format files.
 - Allow pinning to *any* language version, using the same name as clang -std:
   c++03, c++11, c++14 etc. These set precise lexer options, and any
   clang-format code depending on these can use a >= check.
 - For backwards compatibility, `Cpp11` is an alias for `Latest`, not `c++11`.
   This matches the historical documented semantics of this option.
   This spelling (and `Cpp03`) are deprecated.

Reviewers: klimek, modocache

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D67541

llvm-svn: 373439
2019-10-02 09:50:40 +00:00
Paul Hoad 603650213b [clang-format] [PR43372] - clang-format shows replacements in DOS files when no replacement is needed
Summary:
This is a patch to fix PR43372 (https://bugs.llvm.org/show_bug.cgi?id=43372) - clang-format can't format file with includes, ( which really keep providing replacements for already sorted headers.)

A similar issue was addressed by @krasimir in {D60199}, however, this seemingly only prevented the issue when the files being formatted did not contain windows line endings (\r\n)

It's possible this is related to https://twitter.com/StephanTLavavej/status/1176722938243895296 given who @STL_MSFT  works for!

As people often used the existence of replacements to determine if a file needs clang-formatting, this is probably pretty important for windows users

There may be a better way of comparing 2 strings and ignoring \r (which appear in both Results and Code), I couldn't choose between this idiom or the copy_if approach, but I'm happy to change it to whatever people consider more performant.

Reviewers: krasimir, klimek, owenpan, ioeric

Reviewed By: krasimir

Subscribers: cfe-commits, STL_MSFT, krasimir

Tags: #clang-format, #clang, #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D68227

llvm-svn: 373388
2019-10-01 20:20:22 +00:00
Paul Hoad 83476b813e [clang-format] Reference qualifiers in member templates causing extra indentation.
Summary:
The following code

```
struct f {
  template <class T>
  void bar() && noexcept {}
};
```

will be formatted to the following with LLVM style, and
`AlwaysBreakTemplateDeclarations: Yes`

```
struct f {
  template <class T>
      void bar() && noexcept {}
};
```

The indentation of the `void bar()` line is wrong.

Reviewers: klimek, owenpan, krasimir, timwoj, MyDeveloperDay

Reviewed By: klimek, MyDeveloperDay

Subscribers: MyDeveloperDay, ilya-biryukov, llvm-commits, cfe-commits

Patch By: AndWass

Tags: #clang-format, #clang, #llvm

Differential Revision: https://reviews.llvm.org/D68072

llvm-svn: 373165
2019-09-29 13:45:38 +00:00
Serge Pavlov 4bc0562719 Driver tests: set `--sysroot=""` to support clang with `DEFAULT_SYSROOT`
When testing clang that has been compiled with `-DDEFAULT_SYSROOT` set to some path,
some tests would fail. Override sysroot to be empty string for the tests to succeed
when clang is configured with `DEFAULT_SYSROOT`.

Differential Revision: https://reviews.llvm.org/D66834

Patch by Sergej Jaskiewicz <jaskiewiczs@icloud.com>.

llvm-svn: 373147
2019-09-28 12:21:06 +00:00
Yitzhak Mandelbaum db24ef509e [libTooling] Transformer: refine `SourceLocation` specified as anchor of changes.
Summary: Every change triggered by a rewrite rule is anchored at a particular
location in the source code.  This patch refines how that location is chosen and
defines it as an explicit function so it can be shared by other Transformer
implementations.

This patch was inspired by a bug found by a clang tidy, wherein two changes were
anchored at the same location (the expansion loc of the macro) resulting in the
discarding of the second change.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D66652

llvm-svn: 373093
2019-09-27 15:26:04 +00:00
Ilya Biryukov 4627bdedd9 Revert r373056: [clang-format] Reference qualifiers in member templates causing extra indentation
Reason: this breaks unit tests.
llvm-svn: 373059
2019-09-27 09:49:20 +00:00
Ilya Biryukov c5343e721b [clang-format] Reference qualifiers in member templates causing extra indentation
The following code

```
struct f {
  template <class T>
  void bar() && noexcept {}
};
```

will be formatted to the following with LLVM style, and
`AlwaysBreakTemplateDeclarations: Yes`

```
struct f {
  template <class T>
      void bar() && noexcept {}
};
```

The indentation of the `void bar()` line is wrong.

Patch by Andreas Wass (AndWass)!

Differential Revision: https://reviews.llvm.org/D68072

llvm-svn: 373056
2019-09-27 09:24:58 +00:00
Alex Lorenz 15d5f5dd35 [clang-scan-deps] Allow continuation line backslashes followed by whitespace
in the dependency source minimizer

Clang allows continuations that have whitespace between the backslash and the newline.
This patch ensures that the dependency source minimizer can handle the whitespace between
the backslash and the newline when looking for a line continuation.

Differential Revision: https://reviews.llvm.org/D68052

llvm-svn: 373007
2019-09-26 19:28:51 +00:00
Mikael Holmen 43fd14caa0 [SortIncludesTest] Add SortPriority fields to fix -Wmissing-field-initializers after D64695/r372919
llvm-svn: 372944
2019-09-26 06:49:37 +00:00
Fangrui Song f0458283d0 [clang-format] Add SortPriority fields to fix -Wmissing-field-initializers after D64695/r372919
llvm-svn: 372939
2019-09-26 02:02:17 +00:00
Yitzhak Mandelbaum ea966c1bc0 [libTooling] Add `run` combinator to Stencils.
Summary:
This revision adds `run`, a StencilPart that runs a user-defined function that
computes a result over `MatchFinder::MatchResult`.

Reviewers: gribozavr

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D67969

llvm-svn: 372936
2019-09-26 00:53:56 +00:00