Summary:
- Added new function that gets Expansion range with both ends in the same file.
- Fixes the crash at https://github.com/clangd/clangd/issues/113
Subscribers: ilya-biryukov, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65754
llvm-svn: 368058
Summary:
Computing lazily leads to crashes. In particular, computing scopes may
produce diagnostics (from inside template instantiations) and we
currently do it when processing another diagnostic, which leads to
crashes.
Moreover, we remember and access 'Scope*' when computing scopes. This
might lead to invalid memory access if the Scope is deleted by the time
we run the delayed computation. We did not actually construct an example
when this happens, though.
From the VCS and review history, it seems the optimization was
introduced in the initial version without a mention of any performance
benchmarks justifying the performance gains. This led me to a
conclusion that the optimization was premature, so removing it to avoid
crashes seems like the right trade-off at that point.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65796
llvm-svn: 368019
Summary:
The callback will be invoked in clangd when we receive a reply from the client.
This is a prerequisite of implementing a generic mechanism for chainable
refactorings (e.g. extract variable and rename), this would allow server to
trigger a new request to the LSP client after receiving a reply from the client.
Reviewers: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65387
llvm-svn: 367845
Summary:
We should pass the expression type, not a variable type when printing
the resulting value. Variable type may be different from what the
pretty-printing function expects, e.g. have references.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65655
llvm-svn: 367687
Summary:
As we are going to grow the extension in the near future, it is time to
formalize the TS code format/style of our extension (although we'd lose the
history).
We use default options of clang-format:
- 80 max line length
- 2 space indent
Reviewers: ilya-biryukov, sammccall, jvikstrom
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65657
llvm-svn: 367684
Summary:
TweakTests.cpp has some pretty good helpers added for the first few
tweaks, but they have some limitations:
- many assertion failures point at the wrong line
- need lots of input/output tests, setup code is duplicated across both
- local helpers make it hard to split the file as it grows
The new helpers in TweakTests.h are based on old ones (same operations)
but try to address these issues and generally make tests more terse
while improving error messages.
This patch converts everything except ExtractVariable (which is complex
and has changes in flight, so will be converted later).
It's LOC-neutral, despite not being able to get rid of the old helpers
until ExtractVariable is done.
Reviewers: ilya-biryukov
Subscribers: mgorny, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65525
llvm-svn: 367667
The FileManager has been updated to return llvm::ErrorOr from getFile
and getDirectory, this commit updates all the callers of those APIs from
clang.
llvm-svn: 367617
Summary: Added a class for diffing highlightings and removing duplicate lines. Integrated into the highlighting generation flow. Only works correctly if all tokens are on a single line. Also returns empty lines if the IDE should remove previous highlightings on a line.
Reviewers: hokein, sammccall, ilya-biryukov
Subscribers: MaskRay, jkorous, mgrang, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64475
llvm-svn: 367521
Summary:
Whitespace and comments are a clear bugfix: selecting some
comments/space near a statement doesn't mean you're selecting the
surrounding block.
Semicolons are less obvious, but for similar reasons: these tokens
aren't actually claimed by any AST node (usually), so an AST-based model
like SelectionTree shouldn't take them into account.
Callers may still sometimes care about semis of course:
- when the selection is an expr with a non-expr parent, selection of
the semicolon indicates intent to select the statement.
- when a statement with a trailing semi is selected, we need to know
its range to ensure it can be removed.
SelectionTree may or may not play a role here, but these are separate questions
from its core function of describing which AST nodes were selected.
The mechanism here is the TokenBuffer from syntax-trees. We use it in a
fairly low-level way (just to get boundaries of raw spelled tokens). The
actual mapping of AST nodes to coordinates continues to use the (fairly
mature) SourceLocation based logic. TokenBuffer/Syntax trees
don't currently offer an alternative to getFileRange(), I think.
Reviewers: SureYeaah, kadircet
Subscribers: MaskRay, jkorous, arphaman, cfe-commits, ilya-biryukov
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65486
llvm-svn: 367453
Summary:
This fixes a case where we show diagnostics on arbitrary lines, in an
internal codebase.
Open for ideas on unittesting this.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64863
llvm-svn: 367303
Sprinkled some #ifndef NDEBUG in Selection.cpp to make
it possible to build with NDEBUG defined.
The problem was introduced in rL366698 when using dlog
for some debug printouts. The dlog macro expands to
DEBUG_WITH_TYPE, which isn't using it's arguments in
optimized builds (when NDEBUG is defined).
llvm-svn: 367178
Summary:
These aren't formally subexpressions in C++, in this case + is left-associative.
However informally +, *, etc are usually (mathematically) associative and users
consider these subexpressions.
We detect these and in simple cases support extracting the partial expression.
As well as builtin associative operators, we assume that overloads of them
are associative and support those too.
Reviewers: SureYeaah
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65139
llvm-svn: 367121
Summary:
This isn't a general fix to all paths where we assume case-sensitivity, it's
a minimally-invasive fix targeting the llvm 9 branch.
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65320
llvm-svn: 367112
Summary:
After rL366893, the annoate tweak is not activated when we select the
whole file (the commonAncestor is TUDecl but we intend to return null).
This patch fixes this, and also avoid traversing the TUDecl.
Reviewers: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65210
llvm-svn: 366996
This simplifies various workflows, particularly in debugging/development.
e.g. editors will tend to propagate flags, so you can run
`env CLANGD_FLAGS=-input-mirror-file=/tmp/mirror vim foo.cc` rather than
change the configuration in a persistent way.
(This also gives us a generic lever when we don't know how to customize
the flags in some particular LSP client).
While here, add a test for this and other startup logging, and fix a
couple of direct writes to errs() that should have been logs.
Differential Revision: https://reviews.llvm.org/D65153
llvm-svn: 366991
Summary:
Restricting the categories prevents extra unwanted options from creeping into
help (D60663), and removes a bunch of noise from --help-hidden.
While here, remove `static` from the opts in favor of an anon namespace, to
reduce the noise level.
Reviewers: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65200
llvm-svn: 366900
Summary:
Previously TranslationUnitDecl would never be selected.
This means root() is never null, and returns a reference.
commonAncestor() is in principle never null also, but returning TUDecl
here requires tweaks to be careful not to traverse it (this was already
possible when selecting multiple top-level decls, and there are associated bugs!)
Instead, never allow commonAncestor() to return TUDecl, return null instead.
Reviewers: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65101
llvm-svn: 366893
Summary:
QualifiedTypeLoc isn't treated like a regular citizen by RecursiveASTVisitor.
This meant we weren't intercepting the traversal of its inner TypeLoc.
Most of the changes here are about exposing kind() so we can improve the
precision of our tests.
This should fix the issue raised in D65067.
Reviewers: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65100
llvm-svn: 366882
Summary:
SelectionTree is a RecursiveASTVisitor which processes getSourceRange() for
every node. This is a lot of surface area with the AST, as getSourceRange()
is specialized for *many* node types.
And the resulting SelectionTree depends on the source ranges of many
visited nodes, and the order of traversal.
Put together, this means we really need a traversal log to debug when we
get an unexpected SelectionTree. I've built this ad-hoc a few times, now
it's time to check it in.
Example output:
```
D[14:07:44.184] Computing selection for </usr/local/google/home/sammccall/test.cc:1:7, col:8>
D[14:07:44.184] push: VarDecl const auto x = 42
D[14:07:44.184] claimRange: </usr/local/google/home/sammccall/test.cc:1:12, col:13>
D[14:07:44.184] push: NestedNameSpecifierLoc (empty NestedNameSpecifierLoc)
D[14:07:44.184] pop: NestedNameSpecifierLoc (empty NestedNameSpecifierLoc)
D[14:07:44.184] push: QualifiedTypeLoc const auto
D[14:07:44.184] pop: QualifiedTypeLoc const auto
D[14:07:44.184] claimRange: </usr/local/google/home/sammccall/test.cc:1:7, col:11>
D[14:07:44.184] hit selection: </usr/local/google/home/sammccall/test.cc:1:7, col:8>
D[14:07:44.184] skip: IntegerLiteral 42
D[14:07:44.184] skipped range = </usr/local/google/home/sammccall/test.cc:1:16>
D[14:07:44.184] pop: VarDecl const auto x = 42
D[14:07:44.184] claimRange: </usr/local/google/home/sammccall/test.cc:1:1, col:18>
D[14:07:44.184] skip: VarDecl int y = 43
D[14:07:44.184] skipped range = </usr/local/google/home/sammccall/test.cc:2:1, col:9>
D[14:07:44.184] Built selection tree
TranslationUnitDecl
VarDecl const auto x = 42
.QualifiedTypeLoc const auto
```
Reviewers: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65073
llvm-svn: 366698
Summary:
By exposing a callback that can guard code publishing results of
'onMainAST' callback in the same manner we guard diagnostics.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: javed.absar, MaskRay, jkorous, arphaman, kadircet, hokein, jvikstrom, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64985
llvm-svn: 366577
Summary:
Since background-index can perform disk writes, we don't want to turn
it on tests that won't clear it.
Reviewers: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64990
llvm-svn: 366575
This reverts commit 9c377105da.
[clangd][BackgroundIndexLoader] Directly store DependentTU while loading shard
Summary:
We were deferring the population of DependentTU field in LoadedShard
until BackgroundIndexLoader was consumed. This actually triggers a use after
free since the shards FileToTU was pointing at could've been moved while
consuming the Loader.
Reviewers: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64980
llvm-svn: 366559
r366458 is causing test failures. r366467 and r366468 had to be reverted as
they were casuing conflict while reverting r366458.
r366468 [clangd] Remove dead code from BackgroundIndex
r366467 [clangd] BackgroundIndex stores shards to the closest project
r366458 [clangd] Refactor background-index shard loading
llvm-svn: 366551
Summary:
The previous patch did not fix the end mark. D64789
fixes second case of https://github.com/clangd/clangd/issues/93
Patch by @lh123 !
Reviewers: sammccall, kadircet
Reviewed By: kadircet
Subscribers: MaskRay, ilya-biryukov, jkorous, arphaman, cfe-commits
Tags: #clang-tools-extra, #clang
Differential Revision: https://reviews.llvm.org/D64970
llvm-svn: 366545
Summary:
Changes persistance logic to store shards at the directory of closest
CDB. Previously we were storing all shards to directory of the CDB that
triggered indexing, it had its downsides.
For example, if you had two TUs coming from a different CDB but depending on the
same header foo.h, we will store the foo.h only for the first CDB, and it would
be missing for the second and we would never persist it since it was actually
present in the memory and persisted before.
This patch still stores only a single copy of a shard, but makes the directory a
function of the file name. So that the shard place will be unique even with
multiple CDBs accessing the file. This directory is determined as the first
directory containing a CDB in the file's parent directories, if no such
directory exists we make use of the home directory.
Reviewers: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64745
llvm-svn: 366467
Shaurya Gupta