Commit Graph

282 Commits

Author SHA1 Message Date
Alex Lorenz ce781e4010 [refactor] Add a doc comment to the test function in the selection
unittest.

As suggested by Haojian Wu!

llvm-svn: 316105
2017-10-18 18:51:48 +00:00
Alex Lorenz cd6c78386f [refactor] selection: new CodeRangeASTSelection represents a set of selected
consecutive statements

This commit adds a CodeRangeASTSelection value to the refactoring library. This
value represents a set of selected statements in one body of code.

Differential Revision: https://reviews.llvm.org/D38835

llvm-svn: 316104
2017-10-18 18:48:58 +00:00
Alex Lorenz f5ca27cc37 [refactor] allow the use of refactoring diagnostics
This commit allows the refactoring library to use its own set of
refactoring-specific diagnostics to reports things like initiation errors.

Differential Revision: https://reviews.llvm.org/D38772

llvm-svn: 315924
2017-10-16 18:28:26 +00:00
Zachary Turner 41a9ee98f9 Revert "[ADT] Make Twine's copy constructor private."
This reverts commit 4e4ee1c507e2707bb3c208e1e1b6551c3015cbf5.

This is failing due to some code that isn't built on MSVC
so I didn't catch.  Not immediately obvious how to fix this
at first glance, so I'm reverting for now.

llvm-svn: 315536
2017-10-11 23:54:34 +00:00
Zachary Turner 337462b365 [ADT] Make Twine's copy constructor private.
There's a lot of misuse of Twine scattered around LLVM.  This
ranges in severity from benign (returning a Twine from a function
by value that is just a string literal) to pretty sketchy (storing
a Twine by value in a class).  While there are some uses for
copying Twines, most of the very compelling ones are confined
to the Twine class implementation itself, and other uses are
either dubious or easily worked around.

This patch makes Twine's copy constructor private, and fixes up
all callsites.

Differential Revision: https://reviews.llvm.org/D38767

llvm-svn: 315530
2017-10-11 23:33:06 +00:00
Alex Lorenz 4796e72bf8 Add std::move in RefactoringActionRulesTest.cpp
Should fix http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-incremental

llvm-svn: 314708
2017-10-02 19:02:42 +00:00
Alex Lorenz 1c0a26bd54 [refactor] Simplify the refactoring interface
This commit simplifies the interface for the refactoring action rules and the
refactoring requirements. It merges the selection constraints and the selection
requirements into one class. The refactoring actions rules must now be
implemented using subclassing instead of raw function / lambda pointers. This
change also removes a bunch of template-based traits and other
template definitions that are now redundant.

Differential Revision: https://reviews.llvm.org/D37681

llvm-svn: 314704
2017-10-02 18:42:43 +00:00
Alex Lorenz b54ef6a2a4 [refactor] add clang-refactor tool with initial testing support and
local-rename action

This commit introduces the clang-refactor tool alongside the local-rename action
which uses the existing renaming engine used by clang-rename. The tool
doesn't actually perform the source transformations yet, it just provides
testing support. This commit also moves only one test from clang-rename over to
test/Refactor. I will continue to move the other tests throughout
development of clang-refactor.

The following options are supported by clang-refactor:

-v: use verbose output
-selection: The source range that corresponds to the portion of the source
 that's selected (currently only special command test:<file> is supported).

Please note that a follow-up commit will migrate clang-refactor to
libTooling's common option parser, so clang-refactor will be able to use
the common interface with compilation database and options like -p, -extra-arg,
etc.

The testing support provided by clang-refactor is described below:

When -selection=test:<file> is given, clang-refactor will parse the selection
commands from that file. The selection commands are grouped and the specified
refactoring action invoked by the tool. Each command in a group is expected to
produce an identical result. The precise syntax for the selection commands is
described in a comment in TestSupport.h.

Differential Revision: https://reviews.llvm.org/D36574

llvm-svn: 313244
2017-09-14 10:06:52 +00:00
Alex Lorenz 2420122fbb Fix GCC build error and warnings from r313025
llvm-svn: 313027
2017-09-12 13:03:42 +00:00
Alex Lorenz 3529a94b43 [refactor] add a refactoring action rule that returns symbol occurrences
Differential Revision: https://reviews.llvm.org/D36574

llvm-svn: 313025
2017-09-12 12:48:37 +00:00
Aaron Ballman 8816a87064 Replacing "or" with "||" to appease MSVC.
llvm-svn: 312639
2017-09-06 15:12:05 +00:00
Johannes Altmanninger d614a1c15a [AST] Traverse CXXOperatorCallExpr in LexicallyOrderedRecursiveASTVisitor
Summary:
This affects overloaded operators, which are represented by a
CXXOperatorCallExpr whose first child is always a DeclRefExpr referring to the
operator. For infix, postfix and call operators we want the first argument
to be traversed before the operator.

Reviewers: arphaman

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D37200

llvm-svn: 312633
2017-09-06 13:12:11 +00:00
Johannes Altmanninger 0a755162be [AST] Traverse templates in LexicallyOrderedRecursiveASTVisitor
Summary:
We need to specialize this because RecursiveASTVisitor visits template
template parameters after the templated declaration, unlike the order in
which they appear in the source code.

Reviewers: arphaman

Reviewed By: arphaman

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D36998

llvm-svn: 312631
2017-09-06 13:11:13 +00:00
Alex Lorenz f6959ed1b1 [refactor] Use a RefactoringResultConsumer instead of tagged refactoring
rule classes

This commit changes the way that the refactoring results are produced. Instead
of using different `RefactoringActionRule` subclasses for each result type,
Clang  now use a single `RefactoringResultConsumer`. This was suggested by
Manuel in https://reviews.llvm.org/D36075.

Differential Revision: https://reviews.llvm.org/D37291

llvm-svn: 312316
2017-09-01 09:16:02 +00:00
Alex Lorenz caf2ef0d81 Avoid 'size_t' typedef in the unittest ObjC code
This should fix
http://bb.pgr.jp/builders/test-clang-msc-x64-on-i686-linux-RA

llvm-svn: 312133
2017-08-30 15:37:30 +00:00
Alex Lorenz 410ef3838a Recommit r312127: [refactor] AST selection tree should contain syntactic
form of PseudoObjectExpr

The new commit adjusts unittest test code compilation options so that the
Objective-C code in the unittest can be parsed on non-macOS platforms.

Original message:

The AST selection finder now constructs a selection tree that contains only the
syntactic form of PseudoObjectExpr. This form of selection tree is more
meaningful when doing downstream analysis as we're interested in the syntactic
features of the AST and the correct lexical parent relation.

llvm-svn: 312132
2017-08-30 15:28:01 +00:00
Alex Lorenz 02c9994472 Revert r312127 as the ObjC unittest code fails to compile on Linux
llvm-svn: 312131
2017-08-30 15:11:45 +00:00
Alex Lorenz 6852bea7cc [refactor] AST selection tree should contain syntactic form
of PseudoObjectExpr

The AST selection finder now constructs a selection tree that contains only the
syntactic form of PseudoObjectExpr. This form of selection tree is more
meaningful when doing downstream analysis as we're interested in the syntactic
features of the AST and the correct lexical parent relation.

llvm-svn: 312127
2017-08-30 15:00:27 +00:00
Alex Lorenz 23654b501c [refactor] Examine the whole range for ObjC @implementation decls
when computing the AST selection

llvm-svn: 312121
2017-08-30 13:24:37 +00:00
Alex Lorenz 595c644f84 Avoid missing std error code in RefactoringActionRulesTest.cpp
This should fix this bot:
http://bb.pgr.jp/builders/i686-mingw32-RA-on-linux

llvm-svn: 311886
2017-08-28 12:03:08 +00:00
Alex Lorenz 1586fa70a6 [refactor] initial support for refactoring action rules
This patch implements the initial support for refactoring action rules. The
first rule that's supported is a "source change" rule that returns a set of
atomic changes. This patch is based on the ideas presented in my RFC:

http://lists.llvm.org/pipermail/cfe-dev/2017-July/054831.html

The following pieces from the RFC are added by this patch:

- `createRefactoringRule` (known as `apply` in the RFC)
- `requiredSelection` refactoring action rule requirement.
- `selection::SourceSelectionRange` selection constraint.

Differential Revision: https://reviews.llvm.org/D36075

llvm-svn: 311884
2017-08-28 11:12:05 +00:00
Alex Lorenz 39265ca89f Fix use-after-free in Clang's ASTSelection unittest
llvm-svn: 311664
2017-08-24 14:53:48 +00:00
Alex Lorenz a844f396ce [refactor] Add the AST source selection component
This commit adds the base AST source selection component to the refactoring
library. AST selection is represented using a tree of SelectedASTNode values.
Each selected node gets its own selection kind, which can actually be None even
in the middle of tree (e.g. statement in a macro whose child is in a macro
argument). The initial version constructs a "raw" selection tree, without
applying filters and canonicalisation operations to the nodes.

Differential Revision: https://reviews.llvm.org/D35012

llvm-svn: 311655
2017-08-24 13:51:09 +00:00
Eric Liu 7ef3a19337 Added `applyAtomicChanges` function.
This re-commits r298913.
o See thread http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20170327/189084.html
o Tested with -DLLVM_ENABLE_LOCAL_SUBMODULE_VISIBILITY=0.

Summary: ... which applies a set of `AtomicChange`s on code.

Reviewers: klimek, djasper

Reviewed By: djasper

Subscribers: arphaman, mgorny, chapuni, cfe-commits

Differential Revision: https://reviews.llvm.org/D30777

llvm-svn: 309548
2017-07-31 09:22:34 +00:00
Matthias Braun 0bc7d63322 Try to fix modules build
Module builds somehow report an ambiguity between clang::Diagnostic and
clang::Tooling::Diagnostic. It seems as if one of the additional headers
brought in by the module brings the clang namespace to the toplevel. I
could not find out the reason for that, so for now I go with the simple
fix to bring the build back to green.

rdar://33321397

llvm-svn: 308071
2017-07-15 00:29:25 +00:00
Alexander Kornienko 2745e17970 [Clang-Tidy] Preserve Message, FileOffset, FilePath in Clang-Tidy YAML output
Summary:
To get properly integration Clang-Tidy with CLion IDE, next things were implemented:
1) Preserve `Message`, `FileOffset`, `FilePath` in the clang-tidy output.
2) Export all diagnostics, not just the ones with fixes
3) Test-cases

Reviewers: klimek, ilya-biryukov, alexfh

Reviewed By: alexfh

Subscribers: alexfh, JDevlieghere, mgorny, xazax.hun, cfe-commits, klimek

Tags: #clang-tools-extra

Patch by Vladimir Plyashkun!

Differential Revision: https://reviews.llvm.org/D34404

llvm-svn: 308014
2017-07-14 10:37:44 +00:00
Alex Lorenz 9c171406c6 RecursiveASTVisitor should visit the nested name qualifiers in
a template specialisation

rdar://33123354

Differential Revision: https://reviews.llvm.org/D34981

llvm-svn: 307638
2017-07-11 09:39:23 +00:00
Richard Smith 2563984215 Fix ODR violations due to abuse of LLVM_YAML_IS_(FLOW_)?SEQUENCE_VECTOR
This is a short-term fix for PR33650 aimed to get the modules build bots green again.

Remove all the places where we use the LLVM_YAML_IS_(FLOW_)?SEQUENCE_VECTOR
macros to try to locally specialize a global template for a global type. That's
not how C++ works.

Instead, we now centrally define how to format vectors of fundamental types and
of string (std::string and StringRef). We use flow formatting for the former
cases, since that's the obvious right thing to do; in the latter case, it's
less clear what the right choice is, but flow formatting is really bad for some
cases (due to very long strings), so we pick block formatting. (Many of the
cases that were using flow formatting for strings are improved by this change.)

Other than the flow -> block formatting change for some vectors of strings,
this should result in no functionality change.

Differential Revision: https://reviews.llvm.org/D34907

Corresponding LLVM change is r306878.

llvm-svn: 306881
2017-06-30 20:57:39 +00:00
Alex Lorenz e2863eca2a [Tooling] FixedCompilationDatabase should be able to strip positional
arguments when `-fsyntax-only` is used

Previously, Clang failed to create a fixed compilation database when the
compilation arguments use -fsyntax-only instead of -c. This commit fixes the
issue by forcing Clang to look at the compilation job when stripping the
positional arguments.

Differential Revision: https://reviews.llvm.org/D34687

llvm-svn: 306659
2017-06-29 10:43:44 +00:00
Stephan Bergmann f31b0dc473 Make CastExpr::getSubExprAsWritten look through implicit temporary under CK_ConstructorConversion
With

    struct S1 {};
    struct S2 { operator S1(); };
    S1 f(S2 s) { return static_cast<S1>(s); }

the static_cast expr is

    CXXStaticCastExpr 0x... 'struct S1' static_cast<struct S1> <ConstructorConversion>
    `-CXXConstructExpr 0x... 'struct S1' 'void (struct S1 &&) noexcept' elidable

    `-MaterializeTemporaryExpr 0x... 'struct S1' xvalue
      `-ImplicitCastExpr 0x... 'struct S1' <UserDefinedConversion>
        `-CXXMemberCallExpr 0x... 'struct S1'
          `-MemberExpr 0x... '<bound member function type>' .operator S1 0x...
            `-DeclRefExpr 0x... 'struct S2' lvalue ParmVar 0x... 's' 'struct S2'

getSubExprAsWritten used to return the MaterializeTemporaryExpr (of type S1)
under the CXXConstructExpr, instead of unwinding further to the DeclRefExpr (of
type S2) at the bottom.

Differential Revision: https://reviews.llvm.org/D22128

llvm-svn: 306377
2017-06-27 08:19:09 +00:00
Stephan Bergmann a504c433f1 Make sure TraverseInitListExpr visits InitListExpr exactly twice
... once each for the syntactic and semantic form. Without this fix, behavior
of the newly added tests would have been

InitListExprIsPreOrderVisitedTwice:
 syntactic: 1
 semantic: 2

InitListExprIsPostOrderVisitedTwice:
 syntactic: 0
 semantic: 1

InitListExprIsPreOrderNoQueueVisitedTwice:
 syntactic: 1
 semantic: 2

InitListExprIsPostOrderNoQueueVisitedTwice:
 syntactic: 0
 semantic: 2

llvm-svn: 306374
2017-06-27 08:04:08 +00:00
Stephan Bergmann 83e6a82636 Switch TestVisitor to Lang_C via -x c
...instead of -std=c99, as the latter lead to

  error: invalid argument '-std=c99' not allowed with 'C++'

complaints in test logs

Differential Revision: https://reviews.llvm.org/D34417

llvm-svn: 306373
2017-06-27 07:59:56 +00:00
Galina Kistanova 45fbb597ec Added braces to work around gcc warning in googletest: suggest explicit braces to avoid ambiguous 'else'. NFC.
llvm-svn: 305507
2017-06-15 21:01:24 +00:00
Richard Smith d9259c2f5e Remove 'Filename' parameter from BeginSourceFileAction.
No-one was using this, and it's not meaningful in general -- FrontendActions
can be run on inputs that don't have a corresponding source file. The current
frontend input can be obtained by asking the FrontendAction if any future
action actually needs it.

llvm-svn: 305045
2017-06-09 01:36:10 +00:00
Serge Pavlov c46064c2a9 Method loadFromCommandLine should be able to report errors
Now FixedCompilationDatabase::loadFromCommandLine has no means to report
which error occurred if it fails to create compilation object. This is
a block for implementing D33013, because after that change driver will
refuse to create compilation if command line contains erroneous options.

This change adds additional argument to loadFromCommandLine, which is
assigned error message text if compilation object was not created. This is
the same way as other methods of CompilationDatabase report failure.

Differential Revision: https://reviews.llvm.org/D33272

llvm-svn: 303741
2017-05-24 11:57:37 +00:00
Alex Lorenz 3b21d372c2 [AST] RecursiveASTVisitor should not crash on lambdas with type attributes
rdar://31960860

llvm-svn: 302689
2017-05-10 16:21:00 +00:00
Eric Liu fc9213e0e5 Add ASTMatchRefactorer and ReplaceNodeWithTemplate to RefactoringCallbacks
Summary: This is the first change as part of developing a clang-query based search and replace tool.

Reviewers: klimek, bkramer, ioeric, sbenza, jbangert

Reviewed By: ioeric, jbangert

Subscribers: sbenza, ioeric, cfe-commits

Patch by Julian Bangert!

Differential Revision: https://reviews.llvm.org/D29621

llvm-svn: 302624
2017-05-10 07:48:45 +00:00
Rui Ueyama 0fcbb2893e Revert r301487: Replace HashString algorithm with xxHash64
This reverts commit r301487 to make buildbots green.

llvm-svn: 301491
2017-04-26 23:15:10 +00:00
Rui Ueyama 87b30ac9d3 Replace HashString algorithm with xxHash64
The previous algorithm processed one character at a time, which is very
painful on a modern CPU. Replace it with xxHash64, which both already
exists in the codebase and is fairly fast.

Patch from Scott Smith!

Differential Revision: https://reviews.llvm.org/D32509

llvm-svn: 301487
2017-04-26 22:45:04 +00:00
Haojian Wu ce27e59b3e Add `replace` interface with range in AtomicChange.
Reviewers: ioeric

Reviewed By: ioeric

Subscribers: alexshap, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D31492

llvm-svn: 299073
2017-03-30 13:07:38 +00:00
Juergen Ributzka abbef0ef07 Revert "Added `applyAtomicChanges` function."
This broke GreenDragon:
http://lab.llvm.org:8080/green/job/clang-stage2-cmake-modulesRDA_build/4776/

Reverting this commit and all follow-up commits.

llvm-svn: 298967
2017-03-29 00:24:36 +00:00
Juergen Ributzka c9b250611f Revert "Try to unbreak buildbots after r298913."
llvm-svn: 298966
2017-03-29 00:24:34 +00:00
Eric Liu be8d7a32c2 Try to unbreak buildbots after r298913.
llvm-svn: 298919
2017-03-28 13:56:19 +00:00
Eric Liu ea5c4a7ca3 Added `applyAtomicChanges` function.
Summary: ... which applies a set of `AtomicChange`s on code.

Reviewers: klimek, djasper

Reviewed By: djasper

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D30777

llvm-svn: 298913
2017-03-28 13:05:32 +00:00
Eric Liu 373c182a07 Add missing implementation for AtomicChange::replace(...)
Summary: Just realized the implementation is missing...

Reviewers: klimek

Reviewed By: klimek

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D30735

llvm-svn: 297289
2017-03-08 15:53:10 +00:00
Eric Liu 9e745b7292 Introducing clang::tooling::AtomicChange for refactoring tools.
Summary:
An AtomicChange is used to create and group a set of source edits, e.g.
replacements or header insertions. Edits in an AtomicChange should be related,
e.g. replacements for the same type reference and the corresponding header
insertion/deletion.

An AtomicChange is uniquely identified by a key position and will either be
fully applied or not applied at all. The key position should be the location
of the key syntactical element that is being changed, e.g. the call to a
refactored method.

Next step: add a tool that applies AtomicChange.

Reviewers: klimek, djasper

Reviewed By: klimek

Subscribers: alexshap, cfe-commits, djasper, mgorny

Differential Revision: https://reviews.llvm.org/D27054

llvm-svn: 296616
2017-03-01 13:14:01 +00:00
Alexander Kornienko 9bab199146 [clang-tidy] Add check name to YAML export
Add a field indicating the associated check for every replacement to the YAML
report generated with the '-export-fixes' option.  Update
clang-apply-replacements to handle the new format.

Patch by Alpha Abdoulaye!

Differential revision: https://reviews.llvm.org/D26137

llvm-svn: 290892
2017-01-03 14:35:47 +00:00
Richard Smith 30e304e2a6 Remove custom handling of array copies in lambda by-value array capture and
copy constructors of classes with array members, instead using
ArrayInitLoopExpr to represent the initialization loop.

This exposed a bug in the static analyzer where it was unable to differentiate
between zero-initialized and unknown array values, which has also been fixed
here.

llvm-svn: 289618
2016-12-14 00:03:17 +00:00
Daniel Jasper 03a04fe95f clang-format: Separate out a language kind for ObjC.
While C(++) and ObjC are generally formatted the same way and can be
mixed, people might want to choose different styles based on the
language. This patch recognizes .m and .mm files as ObjC and also
implements a very crude detection of whether or not a .h file contains
ObjC code. This can be improved over time.

Also move most of the ObjC tests into their own test file to keep file
size maintainable.

llvm-svn: 289428
2016-12-12 12:42:29 +00:00
Joerg Sonnenberger 399aea300f Extend CompilationDatabase by a field for the output filename
In bigger projects like an Operating System, the same source code is
often compiled in slightly different ways. This could be the difference
between PIC and non-PIC code for static vs dynamic libraries, it could
also be the difference between size optimised versions of tools for
ramdisk images. At the moment, the compilation database has no way to
distinguish such cases. As first step, add a field in the JSON format
for it and process it accordingly.

Differential Revision: https://reviews.llvm.org/D27138

llvm-svn: 288436
2016-12-01 23:37:45 +00:00