Summary:
We use the name from the IdentifierInfo of the Macro to compute its
SymbolID. It is better to just take the Name as a parameter to avoid
storing the IdentifierInfo whenever we need the SymbolID for the Macro.
Patch by UTKARSH SAXENA!
Reviewers: hokein
Reviewed By: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D69937
Summary:
Would be nice to also fix this in clang, but that looks like more work
if we want to preserve signatures in informative chunks.
Fixes https://github.com/clangd/clangd/issues/118
Reviewers: kadircet
Reviewed By: kadircet
Subscribers: merge_guards_bot, MaskRay, jkorous, arphaman, usaxena95, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D69382
Summary:
- store all macro references in the ParsedAST;
- unify the two variants of CollectMainFileMacros;
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, mgrang, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67496
llvm-svn: 372725
Summary:
Those errors are exposed at the first character of a file,
for a lack of a better place.
Previously, all errors were stored inside the AST and report
accordingly. However, errors in command-line argument parsing could
result in failure to produce the AST, so we need an alternative ways to
report those errors.
We take the following approach in this patch:
- buildCompilerInvocation() now requires an explicit DiagnosticConsumer.
- TUScheduler and TestTU now collect the diagnostics produced when
parsing command line arguments.
If pasing of the AST failed, diagnostics are reported via a new
ParsingCallbacks::onFailedAST method.
If parsing of the AST succeeded, any errors produced during
command-line parsing are stored alongside the AST inside the
ParsedAST instance and reported as previously by calling the
ParsingCallbacks::onMainAST method;
- The client code that uses ClangdServer's DiagnosticConsumer
does not need to change, it will receive new diagnostics in the
onDiagnosticsReady() callback
Errors produced when parsing command-line arguments are collected using
the same StoreDiags class that is used to collect all other errors. They
are recognized by their location being invalid. IIUC, the location is
invalid as there is no source manager at this point, it is created at a
later stage.
Although technically we might also get diagnostics that mention the
command-line arguments FileID with after the source manager was created
(and they have valid source locations), we choose to not handle those
and they are dropped as not coming from the main file. AFAICT, those
diagnostics should always be notes, therefore it's safe to drop them
without loosing too much information.
Reviewers: kadircet
Reviewed By: kadircet
Subscribers: nridge, javed.absar, MaskRay, jkorous, arphaman, cfe-commits, gribozavr
Tags: #clang
Differential Revision: https://reviews.llvm.org/D66759
llvm-svn: 370177
Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.
Differential revision: https://reviews.llvm.org/D66259
llvm-svn: 368944
Summary: The parser gives implicit template instantiations to the action's HandleTopLevelDecls callback. This makes semantic highlighting highlight these templated functions multiple times. Fixed by filtering on if a Decl is an implicit function/variable/class instantiation. Also added a testcase to semantic highlighting on this.
Reviewers: hokein, ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65510
llvm-svn: 368261
When we fail to calculate #include insertion for a completion item.
Note that this change does not add a test, although that would be good.
llvm-svn: 365606
Summary:
I didn't manage to find something nicer than optional<bool>, but at least I
found a sneakier comment.
Reviewers: kadircet
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D64216
llvm-svn: 365356
Summary:
Currently HeaderSearch only looks at SearchDir's passed into it, but in
addition to those paths headers can be relative to including file's directory.
This patch makes sure that is taken into account.
Reviewers: gribozavr
Subscribers: jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D63295
llvm-svn: 365005
The bitstream reader handles errors poorly. This has two effects:
* Bugs in file handling (especially modules) manifest as an "unexpected end of
file" crash
* Users of clang as a library end up aborting because the code unconditionally
calls `report_fatal_error`
The bitstream reader should be more resilient and return Expected / Error as
soon as an error is encountered, not way late like it does now. This patch
starts doing so and adopting the error handling where I think it makes sense.
There's plenty more to do: this patch propagates errors to be minimally useful,
and follow-ups will propagate them further and improve diagnostics.
https://bugs.llvm.org/show_bug.cgi?id=42311
<rdar://problem/33159405>
Differential Revision: https://reviews.llvm.org/D63518
llvm-svn: 364464
ContainsActiveParameter is not used anywhere, set incorrectly (see the
removed FIXME) and has no unit tests.
Removing it to simplify the code.
llvm-svn: 362686
Summary:
By producing the $0 marker in the snippets at the last placeholder.
This produces nicer results in most cases, e.g. for
namespace <#name#> {
<#decls#>
}
we now produce ${0:decls} instead of ${2:decls} and the final cursor
placement is more convenient.
Reviewers: hokein
Reviewed By: hokein
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D62389
llvm-svn: 361841
Summary: Embedding clients want to experiment with showing such results in e.g. a different color.
Reviewers: kadircet
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61588
llvm-svn: 360039
Summary:
The hope is this will catch a few patterns with repetition:
SomeClass* S = ^SomeClass::Create()
int getFrobnicator() { return ^frobnicator_; }
// discard the factory, it's no longer valid.
^MyFactory.reset();
Without triggering antipatterns too often:
return Point(x.first, x.^second);
I'm going to gather some data on whether this turns out to be a win overall.
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, jfb, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61537
llvm-svn: 360030
Summary:
This is a tricky case (we baked the assumption that symbols come from
the preamble xor mainfile pretty deeply) and the fix is a bit of a hack:
We look at the code to guess the macro names, and deserialize them from
the preamble "by hand".
Reviewers: ilya-biryukov
Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60937
........
Fix buildbots http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast/builds/47684/
llvm-svn: 359796
Summary:
This is a tricky case (we baked the assumption that symbols come from
the preamble xor mainfile pretty deeply) and the fix is a bit of a hack:
We look at the code to guess the macro names, and deserialize them from
the preamble "by hand".
Reviewers: ilya-biryukov
Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60937
llvm-svn: 359778
Summary: We scrape the enclosing scopes from the source file, and use them in the query.
Reviewers: kadircet
Subscribers: ilya-biryukov, MaskRay, jkorous, mgrang, arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61077
llvm-svn: 359284
Summary:
It's never set to true. Its only effect would be to set stdout to binary mode.
Hopefully we have better ways of doing this by now :-)
Reviewers: hokein
Subscribers: jkorous, arphaman, kadircet, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D60871
llvm-svn: 358696
Summary:
Previously, we would use include spelling of the declaring header to check
whether the inserted header is the same as the main file. This doesn't help because
we only have file path of the main file.
Reviewers: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60687
llvm-svn: 358496
Summary:
o Lex the code to get the identifiers and put them into a "symbol" index.
o Adds a new completion mode without compilation/sema into code completion workflow.
o Make IncludeInserter work even when no compile command is present, by avoiding
inserting non-verbatim headers.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, jdoerfert, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60126
llvm-svn: 358159
Summary:
There are cases where Sema can't tell that "foo" in foo::Bar is a
namespace qualifier, like in incomplete macro expansions.
After this patch, if sema reports no specifier but it looks like there's one in
the source code, then we take it into account.
Reworked structure and comments in getQueryScopes to try to fight
creeping complexity - unsure if I succeeded.
I made the test harder (the original version also passes).
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60503
llvm-svn: 358091
Summary: One clear use case: use with an editor that reacts poorly to edits above the cursor.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60409
llvm-svn: 358075
Summary:
Intent is to use the heuristically-parsed scope in cases where we get bogus
results from sema, such as in complex macro expansions.
Added a motivating testcase we currently get wrong.
Name changed because we (already) use this for things other than speculation.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60500
llvm-svn: 358074
Summary:
This introduces ~4k new symbols, and ~10k refs for LLVM. We need that
information for providing better code navigation support:
- When references for a class template is requested, we should return these specializations as well.
- When children of a specialization is requested, we should be able to query for those symbols(instead of just class template)
Number of symbols: 378574 -> 382784
Number of refs: 5098857 -> 5110689
Reviewers: hokein, gribozavr
Reviewed By: gribozavr
Subscribers: nridge, ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, jdoerfert, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D59083
llvm-svn: 356125
Summary:
Suppose `clangd::` is unresolved in the following example. Currently,
we simply use "clangd::" as the query scope. We can do better by combining with
accessible scopes in the context. The query scopes can be `{clangd::, clang::clangd::}`.
```
namespace clang { clangd::^ }
```
Reviewers: ilya-biryukov, sammccall, hokein, kadircet
Reviewed By: kadircet
Subscribers: MaskRay, jkorous, arphaman, kadircet, jdoerfert, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D58448
llvm-svn: 354963
Summary:
This enables clangd to intercept compiler diagnostics and attach fixes (e.g. by
querying index). This patch adds missing includes for incomplete types e.g.
member access into class with only forward declaration. This would allow adding
missing includes for user-typed symbol names that are missing declarations
(e.g. typos) in the future.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: mgorny, ilya-biryukov, javed.absar, MaskRay, jkorous, mgrang, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D56903
llvm-svn: 352361
ClangTidyOptions::getDefaults is not free, it will initialize all
clang-tidy modules to get check-specific options, and we don't use this
information in CodeComplete, so using an empty one (constructed by
default constructor) is sufficient.
llvm-svn: 351826
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
The new guideline is to qualify with 'llvm::' explicitly both in
'.h' and '.cpp' files. This simplifies moving the code between
header and source files and is easier to keep consistent.
llvm-svn: 350531
Summary:
The isIndexedForCodeCompletion is called in the code patch of
SymbolCollector.
Reviewers: kadircet
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D55206
llvm-svn: 348130
Summary: E.g. allow injected "A::A" in `using A::A^` but not in "A^".
Reviewers: kadircet
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D55065
llvm-svn: 347982
Summary:
For example, when anonymous namespace is present, duplicated namespaces might be
generated for the enclosing namespace.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D54105
llvm-svn: 346224
The intention was to fall through to Function case in LLVM_ENABLE_ASSERTIONS=Off builds.
Use #ifndef NDEBUG to fix -Wimplicit-fallthrough
llvm-svn: 345953
Summary:
These are available via qualifiers, but signal to noise level is low.
Keep required quailifier machinery around though, for cross-ns completion.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53571
llvm-svn: 345141
Standardize on the most common namespace setup in our *.cpp files:
using namespace llvm;
namespace clang {
namespace clangd {
void foo(StringRef) { ... }
And remove redundant llvm:: qualifiers. (Except for cases like
make_unique where this causes problems with std:: and ADL).
This choice is pretty arbitrary, but some broad consistency is nice.
This is going to conflict with everything. Sorry :-/
Squash the other configurations:
A)
using namespace llvm;
using namespace clang;
using namespace clangd;
void clangd::foo(StringRef);
This is in some of the older files. (It prevents accidentally defining a
new function instead of one in the header file, for what that's worth).
B)
namespace clang {
namespace clangd {
void foo(llvm::StringRef) { ... }
This is fine, but in practice the using directive often gets added over time.
C)
namespace clang {
namespace clangd {
using namespace llvm; // inside the namespace
This was pretty common, but is a bit misleading: name lookup preferrs
clang::clangd::foo > clang::foo > llvm:: foo (no matter where the using
directive is).
llvm-svn: 344850
Summary:
This should make all-scope completion more usable. Scope proximity for
indexes will be added in followup patch.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53131
llvm-svn: 344688
This patch moves the virtual file system form clang to llvm so it can be
used by more projects.
Concretely the patch:
- Moves VirtualFileSystem.{h|cpp} from clang/Basic to llvm/Support.
- Moves the corresponding unit test from clang to llvm.
- Moves the vfs namespace from clang::vfs to llvm::vfs.
- Formats the lines affected by this change, mostly this is the result of
the added llvm namespace.
RFC on the mailing list:
http://lists.llvm.org/pipermail/llvm-dev/2018-October/126657.html
Differential revision: https://reviews.llvm.org/D52783
llvm-svn: 344140
queue is not used after index-provided completions' merge with those from Sema
USRGeneration.h is not used after introduction of getSymbolID
llvm-svn: 343912
Summary:
The file stats can be reused when preamble is reused (e.g. code
completion). It's safe to assume that cached status is not outdated as we
assume preamble files to remain unchanged.
On real file system, this made code completion ~20% faster on a measured file
(with big preamble). The preamble build time doesn't change much.
Reviewers: sammccall, ilya-biryukov
Reviewed By: sammccall
Subscribers: mgorny, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D52419
llvm-svn: 343576
Summary:
Since we plan to move handling of override suggestions to Sema with
D52225 this patch just makes sure clangd-side has no logic related to that
anymore and updates tests.
Reviewers: ioeric, ilya-biryukov
Reviewed By: ioeric
Subscribers: MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D52226
llvm-svn: 343567
Summary:
When no scope qualifier is specified, allow completing index symbols
from any scope and insert proper automatically. This is still experimental and
hidden behind a flag.
Things missing:
- Scope proximity based scoring.
- FuzzyFind supports weighted scopes.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: kbobyrev, ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D52364
llvm-svn: 343248
Summary:
To stay fast, enable single-file-mode instead. This is fine since completions
in the preamble are simple.
The net effect for now is to suppress the spurious TopLevel completions when
completing inside the preamble.
Once Sema has include directive completion, this will be more important.
Reviewers: ilya-biryukov
Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D52071
llvm-svn: 342230
As discussed during D51860 review, it is better to use `llvm::Optional`
here as it has clear semantics which reflect intended behavior.
Reviewed By: sammccall
Differential Revision: https://reviews.llvm.org/D52028
llvm-svn: 342138
JSON (de)serialization of `FuzzyFindRequest` might be useful for both
D51090 and D51628. Also, this allows precise logging of the fuzzy find
requests.
Reviewed By: sammccall
Differential Revision: https://reviews.llvm.org/D51852
llvm-svn: 341802
Summary:
- DynamicIndex doesn't implement ParsingCallbacks, to make its role clearer.
ParsingCallbacks is a separate object owned by the receiving TUScheduler.
(I tried to get rid of the "index-like-object that doesn't implement index"
but it was too messy).
- Clarified(?) docs around DynamicIndex - fewer details up front, more details
inside.
- Exposed dynamic index from ClangdServer for memory monitoring and more
direct testing of its contents (actual tests not added here, wanted to get
this out for review)
- Removed a redundant and sligthly confusing filename param in a callback
Reviewers: ilya-biryukov
Subscribers: javed.absar, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D51221
llvm-svn: 341325
Summary:
Currently, a symbol can have only one #include header attached, which
might not work well if the symbol can be imported via different #includes depending
on where it's used. This patch stores multiple #include headers (with # references)
for each symbol, so that CodeCompletion can decide which include to insert.
In this patch, code completion simply picks the most popular include as the default inserted header. We also return all possible includes and their edits in the `CodeCompletion` results.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: mgrang, ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D51291
llvm-svn: 341304
Summary: Only accessible via the C++ API at the moment.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D51437
llvm-svn: 341065
Summary:
For index-based code completion, send an asynchronous speculative index
request, based on the index request for the last code completion on the same
file and the filter text typed before the cursor, before sema code completion
is invoked. This can reduce the code completion latency (by roughly latency of
sema code completion) if the speculative request is the same as the one
generated for the ongoing code completion from sema. As a sequence of code
completions often have the same scopes and proximity paths etc, this should be
effective for a number of code completions.
Trace with speculative index request:{F6997544}
Reviewers: hokein, ilya-biryukov
Reviewed By: ilya-biryukov
Subscribers: javed.absar, jfb, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D50962
llvm-svn: 340604
Summary:
Whenever a code-completion is triggered within a class/struct/union looks at
base classes and figures out non-overriden virtual functions. Than suggests
completions for those.
Reviewers: ilya-biryukov, hokein, ioeric
Reviewed By: hokein
Subscribers: MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D50898
llvm-svn: 340530
Summary:
We were handling the EnableFunctionArgSnippets only when we are producing LSP
response. Move that code into CompletionItem generation so that internal clients
can benefit from that as well.
Reviewers: ilya-biryukov, ioeric, hokein
Reviewed By: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D51102
llvm-svn: 340527
Summary:
Currently we only add parantheses to the functions if snippets are
enabled, which also inserts snippets for parameters into parantheses. Adding a
new option to put only parantheses. Also it moves the cursor within parantheses
or at the end of them by looking at whether completion item has any parameters
or not. Still requires snippets support on the client side.
Reviewers: ioeric, ilya-biryukov, hokein
Reviewed By: ioeric
Subscribers: MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D50835
llvm-svn: 340040
Summary:
Sema can only be used for documentation in the current file, other doc
comments should be fetched from the index.
Reviewers: hokein, ioeric, kadircet
Reviewed By: hokein, kadircet
Subscribers: MaskRay, jkorous, mgrang, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D50727
llvm-svn: 340005
Summary:
Previously, clangd was trying to show documentation for the active
parameter instead, which is wrong per LSP specification.
Moreover, the code path that attempts to get parameter comments never
succeds, because no attempt is made to parse function doc comment and
extract parameter-specific parts out of it. So we also remove the code
that claims to fetch parameter comments: it is not used anymore and is
incorrect.
Reviewers: hokein, ioeric, kadircet
Reviewed By: ioeric
Subscribers: MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D50726
llvm-svn: 340004
Summary:
To avoid producing very verbose output in substitutions involving
typedefs, e.g.
T -> std::vector<std::string>::iterator
gets turned into an unreadable mess when printed out for libstdc++,
result contains internal types (std::__Vector_iterator<...>) and
expanded well-defined typedefs (std::basic_string<char>).
Until we improve the presentation code in clang, going with
non-instantiated decls looks like a better UX trade-off.
Reviewers: hokein, ioeric, kadircet
Reviewed By: hokein
Subscribers: MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D50645
llvm-svn: 339665
Summary:
The following are metrics for explicit member access completions. There is no
noticeable impact on other completion types.
Before:
EXPLICIT_MEMBER_ACCESS
Total measurements: 24382
All measurements: MRR: 62.27 Top10: 80.21% Top-100: 94.48%
Full identifiers: MRR: 98.81 Top10: 99.89% Top-100: 99.95%
0-5 filter len:
MRR: 13.25 46.31 62.47 67.77 70.40 81.91
Top-10: 29% 74% 84% 91% 91% 97%
Top-100: 67% 99% 99% 99% 99% 100%
After:
EXPLICIT_MEMBER_ACCESS
Total measurements: 24382
All measurements: MRR: 63.18 Top10: 80.58% Top-100: 95.07%
Full identifiers: MRR: 98.79 Top10: 99.89% Top-100: 99.95%
0-5 filter len:
MRR: 13.84 48.39 63.55 68.83 71.28 82.64
Top-10: 30% 75% 84% 91% 91% 97%
Top-100: 70% 99% 99% 99% 99% 100%
* Top-N: wanted result is found in the first N completion results.
* MRR: Mean reciprocal rank.
Remark: the change seems to have minor positive impact. Although the improvement
is relatively small, down-ranking non-instance members in instance member access
should reduce noise in the completion results.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D49543
llvm-svn: 337681
Summary:
Sema code complete in the recovery mode is generally useless. For many
cases, sema first completes in recovery context and then recovers to more useful
context, in which it's favorable to ignore results from recovery (as results are
often bad e.g. all builtin symbols and top-level symbols). There is also case
where only sema would fail to recover e.g. completions in excluded #if block.
Sema would try to give results, but the results are often useless (see the updated
excluded #if block test).
Reviewers: sammccall, ilya-biryukov
Subscribers: MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D49175
llvm-svn: 336801
Summary:
log() is split into four functions:
- elog()/log()/vlog() have different severity levels, allowing filtering
- dlog() is a lazy macro which uses LLVM_DEBUG - it logs to the logger, but
conditionally based on -debug-only flag and is omitted in release builds
All logging functions use formatv-style format strings now, e.g:
log("Could not resolve URI {0}: {1}", URI, Result.takeError());
Existing log sites have been split between elog/log/vlog by best guess.
This includes a workaround for passing Error to formatv that can be
simplified when D49170 or similar lands.
Subscribers: ilya-biryukov, javed.absar, ioeric, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D49008
llvm-svn: 336785
Summary:
The library has graduated from clangd to llvm/Support.
This is a mechanical change to move to the new API and remove the old one.
Main API changes:
- namespace clang::clangd::json --> llvm::json
- json::Expr --> json::Value
- Expr::asString() etc --> Value::getAsString() etc
- unsigned longs need a cast (due to r336541 adding lossless integer support)
Reviewers: ilya-biryukov
Subscribers: mgorny, ioeric, MaskRay, jkorous, omtcyfz, cfe-commits
Differential Revision: https://reviews.llvm.org/D49077
llvm-svn: 336549
The bad behavior seems to have been fixed by r336242 after all.
I thought it was persisting, but that was a different bug fixed by D48940
llvm-svn: 336320
Summary: Surface it in the completion items C++ API, and when a flag is set.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D48938
llvm-svn: 336309
Summary:
We now compute a distance from the main file to the symbol header, which
is a weighted count of:
- some number of #include traversals from source file --> included file
- some number of FS traversals from file --> parent directory
- some number of FS traversals from parent directory --> child file/dir
This calculation is performed in the appropriate URI scheme.
This means we'll get some proximity boost from header files in main-file
contexts, even when these are in different directory trees.
This extended file proximity model is not yet incorporated in the index
interface/implementation.
Reviewers: ioeric
Subscribers: mgorny, ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D48441
llvm-svn: 336177
Summary:
This provides more structured information that embedders can use for rendering.
ClangdLSPServer continues to call render(), so NFC.
The patch is:
- trivial changes to ClangdServer/ClangdLSPServer
- mostly-mechanical updates to CodeCompleteTests etc for the new API
- new direct tests of render() in CodeCompleteTests
- tiny cleanups to CodeCompletionItem (operator<< and missing initializers)
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D48821
llvm-svn: 336094
Summary:
LSP has some presentational fields with limited semantics (e.g. 'detail') and
doesn't provide a good place to return information like namespace.
Some places where more detailed information is useful:
- tools like quality analysis
- alternate frontends that aren't strictly LSP
- code completion unit tests
In this patch, ClangdServer::codeComplete still return LSP CompletionList, but
I plan to switch that soon (should be a no-op for ClangdLSPServer).
Deferring this makes it clear that we don't change behavior (tests stay the
same) and also keeps the API break to a small patch which can be reverted.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, cfe-commits, jkorous
Differential Revision: https://reviews.llvm.org/D48762
llvm-svn: 335980
Summary:
Previously, the strings matched LSP completion pretty closely.
The completion label was a single string, for instance. This made
implementing completion itself easy but makes it hard to use the names
in other way, e.g. pretty-printed name in synthesized
documentation/hover.
It also limits our introspection into completion items, which can only
be as precise as the indexed symbols. This change is a prerequisite to
improvements to overload bundling which need to inspect e.g. signature
structure.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D48475
llvm-svn: 335360
Summary:
The qualified name can be used to match a completion item to its corresponding
symbol. This can be useful for tools that measure code completion quality.
Qualified names are not precise for identifying symbols; we need to figure out a
better way to identify completion items.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D48425
llvm-svn: 335334
Summary:
It's almost always identical to Name, and in fact we never used it (we used name
instead).
The only case where they differ is objc method selectors (foo: vs foo:bar:).
We can live with the latter for both name and filterText, so I've made that
change too.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D48375
llvm-svn: 335321
Summary:
For completion items that would trigger include insertions (i.e. index symbols
that are not #included yet), add a visual indicator "+" before the completion
label. The inserted headers will appear in the completion detail.
Open to suggestions for better visual indicators; "+" was picked because it
seems cleaner than a few other candidates I've tried (*, #, @ ...).
The displayed header would be like a/b/c.h (without quote) or <vector> for system
headers. I didn't add quotation or "#include" because they can take up limited
space and do not provide additional information after users know what the
headers are. I think a header alone should be obvious for users to infer that
this is an include header..
To align indentation, also prepend ' ' to labels of candidates that would not
trigger include insertions (only for completions where index results are
possible).
Vim:
{F6357587}
vscode:
{F6357589}
{F6357591}
Reviewers: sammccall, ilya-biryukov, hokein
Reviewed By: sammccall
Subscribers: MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D48163
llvm-svn: 334828
Summary:
Adds a CodeCompleteOption to folds together compatible function/method overloads
into a single item. This feels pretty good (for editors with signatureHelp
support), but has limitations.
This happens in the code completion merge step, so there may be inconsistencies
(e.g. if only one overload made it into the index result list, no folding).
We don't want to bundle together completions that have different side-effects
(include insertion), because we can't constructo a coherent CompletionItem.
This may be confusing for users, as the reason for non-bundling may not
be immediately obvious. (Also, the implementation seems a little fragile)
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47957
llvm-svn: 334822
Summary:
Also move unittest: URI scheme to TestFS so that it can be shared by
different tests.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47935
llvm-svn: 334810
Summary: Macros are terribly spammy at the moment and this offers some relief.
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47936
llvm-svn: 334287
Summary:
Now we have most of Sema's code completion signals incorporated in Quality,
which will allow us to give consistent ranking to sema/index results.
Therefore we can/should stop using Sema priority as an explicit signal.
This fixes some issues like namespaces always having a terrible score.
The most important missing signals are:
- Really dumb/rarely useful completions like:
SomeStruct().^SomeStruct
SomeStruct().^operator=
SomeStruct().~SomeStruct()
We already filter out destructors, this patch adds injected names and
operators to that list.
- type matching the expression context.
Ilya has a plan to add this in a way that's compatible with indexes
(design doc should be shared real soon now!)
Reviewers: ioeric
Subscribers: ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47871
llvm-svn: 334192
Summary:
This signal is considered a relevance rather than a quality signal because it's
dependent on the query (the fact that it's completion, and implicitly the query
context).
This is part of the effort to reduce reliance on Sema priority, so we can have
consistent ranking between Index and Sema results.
Reviewers: ioeric
Subscribers: klimek, ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47762
llvm-svn: 334026
Summary:
This adds more symbols to the index:
- member variables and functions
- enum constants in scoped enums
The code completion behavior should remain intact but workspace symbols should
now provide much more useful symbols.
Other symbols should be considered such as the ones in "main files" (files not
being included) but this can be done separately as this introduces its fair
share of problems.
Signed-off-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
Reviewers: ioeric, sammccall
Reviewed By: ioeric, sammccall
Subscribers: hokein, sammccall, jkorous, klimek, ilya-biryukov, jkorous-apple, ioeric, MaskRay, cfe-commits
Differential Revision: https://reviews.llvm.org/D44954
llvm-svn: 334017
Summary:
Also fix USR generation for classes in unit tests. The previous USR
only works for class members, which happens to work when completing class name
inside the class, where constructors are suggested by sema.
Reviewers: sammccall, ilya-biryukov
Subscribers: klimek, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47466
llvm-svn: 333519
This patch silences few clang-tidy warnings, removes unwanted trailing
whitespace and enforces coding guidelines.
The functionality is not affected since the cleanup is rather straightforward,
all clangd tests are still green.
Reviewers: ioeric, ilya-biryukov
Reviewed By: ioeric
Subscribers: MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47471
llvm-svn: 333411
The commit includes two changes:
1. Set DisableFree to false when building the ParsedAST.
This is sane default, since clangd never wants to leak the AST.
2. Make sure CompilerInstance created in code completion is passed to
the FrontendAction::BeginSourceFile call.
We have to do this to make sure the memory buffers of remapped
files are properly freed.
Our tests do not produce any warnings under asan anymore.
The changes are mostly trivial, just moving the code around. So
sending without review.
llvm-svn: 333370
Summary:
To fix a crash in code completion that occurrs when reading doc
comments from files that were updated after the preamble was
computed. In that case, the files on disk could've been changed and we
can't rely on finding the comment text with the same range anymore.
The current workaround is to not provide comments from the headers at
all and rely on the dynamic index instead.
A more principled solution would be to store contents of the files
read inside the preamble, but it is way harder to implement properly,
given that it would definitely increase the sizes of the preamble.
Together with D47272, this should fix all preamble-related crashes
we're aware of.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: klimek, ioeric, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47274
llvm-svn: 333189
Summary:
Currently, we only handle the first callback from sema code completion
and ignore results from potential following callbacks. This causes
causes loss of completion results when multiple contexts are tried by Sema.
For example, we wouldn't get any completion result in the following completion
as the first attemped context is natural language which has no
candidate. The parser would backtrack and tried a completion with AST
semantic, which would find candidate "::x".
```
void f(const char*, int);
#define F(x) f(#x, x)
int x;
void main() {
F(::^);
}
```
To fix this, we only process a sema callback when it gives completion results or
the context supports index-based completion.
Reviewers: ilya-biryukov
Reviewed By: ilya-biryukov
Subscribers: klimek, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47256
llvm-svn: 333174
Summary:
Now that the clients who relied on stats for files from preamble are
gone.
Reviewers: ioeric, sammccall
Reviewed By: ioeric
Subscribers: klimek, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D47066
llvm-svn: 332976
Summary:
And add tests for the comment extraction code.
clangd will now show non-doxygen comments in completion for results
coming from Sema and Dynamic index.
Static index does not include the comments yet, I will enable it in
a separate commit after investigating which implications it has for
the size of the index.
Reviewers: sammccall, hokein, ioeric
Reviewed By: sammccall
Subscribers: klimek, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D46002
llvm-svn: 332460
Summary:
Previous implementation used to extract brief text from doxygen comments.
Brief text parsing slows down completion and is not suited for
non-doxygen comments.
This commit switches to providing comments that mimic the ones
originally written in the source code, doing minimal reindenting and
removing the comments markers to make the output more user-friendly.
It means we lose support for doxygen-specific features, e.g. extracting
brief text, but provide useful results for non-doxygen comments.
Switching the doxygen support back is an option, but I suggest to see
whether the current approach gives more useful results.
Reviewers: sammccall, hokein, ioeric
Reviewed By: sammccall
Subscribers: klimek, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D45999
llvm-svn: 332459
Summary:
Code completion scoring was embedded in CodeComplete.cpp, which is bad:
- awkward to test. The mechanisms (extracting info from index/sema) can be
unit-tested well, the policy (scoring) should be quantitatively measured.
Neither was easily possible, and debugging was hard.
The intermediate signal struct makes this easier.
- hard to reuse. This is a bug in workspaceSymbols: it just presents the
results in the index order, which is not sorted in practice, it needs to rank
them!
Also, index implementations care about scoring (both query-dependent and
independent) in order to truncate result lists appropriately.
The main yak shaved here is the build() function that had 3 variants across
unit tests is unified in TestTU.h (rather than adding a 4th variant).
Reviewers: ilya-biryukov
Subscribers: klimek, mgorny, ioeric, MaskRay, jkorous, mgrang, cfe-commits
Differential Revision: https://reviews.llvm.org/D46524
llvm-svn: 332378
Summary:
o Remove IncludeInsertion LSP command.
o Populate include insertion edits synchromously in completion items.
o Share the code completion compiler instance and precompiled preamble to get existing inclusions in main file.
o Include insertion logic lives only in CodeComplete now.
o Use tooling::HeaderIncludes for inserting new includes.
o Refactored tests.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: klimek, ilya-biryukov, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D46497
llvm-svn: 332363
Summary:
clangd will populate #include insertions as addtionalEdits in completion items.
The code completion tests in ClangdServerTest will be added back in D46497.
Reviewers: ilya-biryukov, sammccall
Reviewed By: ilya-biryukov
Subscribers: klimek, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D46676
llvm-svn: 332362
Summary:
We used to query the index when completing after class qualifiers,
e.g. 'ClassName::^'. We should not do that for the same reasons we
don't query the index for member access expressions.
Reviewers: sammccall, ioeric
Reviewed By: sammccall
Subscribers: klimek, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D46795
llvm-svn: 332226
Summary:
The Language Server Protocol unfortunately mandates that locations in files
be represented by line/column pairs, where the "column" is actually an index
into the UTF-16-encoded text of the line.
(This is because VSCode is written in JavaScript, which is UTF-16-native).
Internally clangd treats source files at UTF-8, the One True Encoding, and
generally deals with byte offsets (though there are exceptions).
Before this patch, conversions between offsets and LSP Position pretended
that Position.character was UTF-8 bytes, which is only true for ASCII lines.
Now we examine the text to convert correctly (but don't actually need to
transcode it, due to some nice details of the encodings).
The updated functions in SourceCode are the blessed way to interact with
the Position.character field, and anything else is likely to be wrong.
So I also updated the other accesses:
- CodeComplete needs a "clang-style" line/column, with column in utf-8 bytes.
This is now converted via Position -> offset -> clang line/column
(a new function is added to SourceCode.h for the second conversion).
- getBeginningOfIdentifier skipped backwards in UTF-16 space, which is will
behave badly when it splits a surrogate pair. Skipping backwards in UTF-8
coordinates gives the lexer a fighting chance of getting this right.
While here, I clarified(?) the logic comments, fixed a bug with identifiers
containing digits, simplified the signature slightly and added a test.
This seems likely to cause problems with editors that have the same bug, and
treat the protocol as if columns are UTF-8 bytes. But we can find and fix those.
Reviewers: hokein
Subscribers: klimek, ilya-biryukov, ioeric, MaskRay, jkorous, cfe-commits
Differential Revision: https://reviews.llvm.org/D46035
llvm-svn: 331029
Summary:
When parser backtracks, we might receive multiple code completion
callbacks.
Previously we had a failing assertion there, now we take first results
and hope they are good enough.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: klimek, jkorous-apple, ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D44567
llvm-svn: 327717
Summary:
Found by asan. Fiddling with code completion AST after
FrontendAction::Exceute can lead to errors.
Calling the callback in ProcessCodeCompleteResults to make sure we
don't access uninitialized state.
This particular issue comes from the fact that Sema::TUScope is
deleted when destructor of ~Parser runs, but still present in
Sema::TUScope and accessed when building completion items.
I'm still struggling to come up with a small repro. The relevant
stackframes reported by asan are:
ERROR: AddressSanitizer: heap-use-after-free on address
READ of size 8 at 0x61400020d090 thread T175
#0 0x5632dff7821b in llvm::SmallPtrSetImplBase::isSmall() const include/llvm/ADT/SmallPtrSet.h:195:33
#1 0x5632e0335901 in llvm::SmallPtrSetImplBase::insert_imp(void const*) include/llvm/ADT/SmallPtrSet.h:127:9
#2 0x5632e067347d in llvm::SmallPtrSetImpl<clang::Decl*>::insert(clang::Decl*) include/llvm/ADT/SmallPtrSet.h:372:14
#3 0x5632e065df80 in clang::Scope::AddDecl(clang::Decl*) tools/clang/include/clang/Sema/Scope.h:287:18
#4 0x5632e0623eea in clang::ASTReader::pushExternalDeclIntoScope(clang::NamedDecl*, clang::DeclarationName) clang/lib/Serialization/ASTReader.cpp
#5 0x5632e062ce74 in clang::ASTReader::finishPendingActions() tools/clang/lib/Serialization/ASTReader.cpp:9164:9
....
#30 0x5632e02009c4 in clang::index::generateUSRForDecl(clang::Decl const*, llvm::SmallVectorImpl<char>&) tools/clang/lib/Index/USRGeneration.cpp:1037:6
#31 0x5632dff73eab in clang::clangd::(anonymous namespace)::getSymbolID(clang::CodeCompletionResult const&) tools/clang/tools/extra/clangd/CodeComplete.cpp:326:20
#32 0x5632dff6fe91 in clang::clangd::CodeCompleteFlow::mergeResults(std::vector<clang::CodeCompletionResult, std::allocator<clang::CodeCompletionResult> > const&, clang::clangd::SymbolSlab const&)::'lambda'(clang::CodeCompletionResult const&)::operator()(clang::CodeCompletionResult const&) tools/clang/tools/extra/clangd/CodeComplete.cpp:938:24
#33 0x5632dff6e426 in clang::clangd::CodeCompleteFlow::mergeResults(std::vector<clang::CodeCompletionResult, std::allocator<clang::CodeCompletionResult> > const&, clang::clangd::SymbolSlab const&) third_party/llvm/llvm/tools/clang/tools/extra/clangd/CodeComplete.cpp:949:38
#34 0x5632dff7a34d in clang::clangd::CodeCompleteFlow::runWithSema() llvm/tools/clang/tools/extra/clangd/CodeComplete.cpp:894:16
#35 0x5632dff6df6a in clang::clangd::CodeCompleteFlow::run(clang::clangd::(anonymous namespace)::SemaCompleteInput const&) &&::'lambda'()::operator()() const third_party/llvm/llvm/tools/clang/tools/extra/clangd/CodeComplete.cpp:858:35
#36 0x5632dff6cd42 in clang::clangd::(anonymous namespace)::semaCodeComplete(std::unique_ptr<clang::CodeCompleteConsumer, std::default_delete<clang::CodeCompleteConsumer> >, clang::CodeCompleteOptions const&, clang::clangd::(anonymous namespace)::SemaCompleteInput const&, llvm::function_ref<void ()>) tools/clang/tools/extra/clangd/CodeComplete.cpp:735:5
0x61400020d090 is located 80 bytes inside of 432-byte region [0x61400020d040,0x61400020d1f0)
freed by thread T175 here:
#0 0x5632df74e115 in operator delete(void*, unsigned long) projects/compiler-rt/lib/asan/asan_new_delete.cc:161:3
#1 0x5632e0b06973 in clang::Parser::~Parser() tools/clang/lib/Parse/Parser.cpp:410:3
#2 0x5632e0b06ddd in clang::Parser::~Parser() clang/lib/Parse/Parser.cpp:408:19
#3 0x5632e0b03286 in std::unique_ptr<clang::Parser, std::default_delete<clang::Parser> >::~unique_ptr() .../bits/unique_ptr.h:236:4
#4 0x5632e0b021c4 in clang::ParseAST(clang::Sema&, bool, bool) tools/clang/lib/Parse/ParseAST.cpp:182:1
#5 0x5632e0726544 in clang::FrontendAction::Execute() tools/clang/lib/Frontend/FrontendAction.cpp:904:8
#6 0x5632dff6cd05 in clang::clangd::(anonymous namespace)::semaCodeComplete(std::unique_ptr<clang::CodeCompleteConsumer, std::default_delete<clang::CodeCompleteConsumer> >, clang::CodeCompleteOptions const&, clang::clangd::(anonymous namespace)::SemaCompleteInput const&, llvm::function_ref<void ()>) tools/clang/tools/extra/clangd/CodeComplete.cpp:728:15
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: klimek, jkorous-apple, cfe-commits, ioeric
Differential Revision: https://reviews.llvm.org/D44000
llvm-svn: 326569
Summary:
Changes:
o Store both the original header and the canonical header in LSP command.
o Also check that both original and canonical headers are not already included
by comparing both resolved header path and written literal includes.
This addresses the use case where private IWYU pragma is defined in a private
header while it would still be preferrable to include the private header, in the
internal implementation file. If we have seen that the priviate header is already
included, we don't try to insert the canonical include.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits
Differential Revision: https://reviews.llvm.org/D43510
llvm-svn: 326070
Kirill Bobyrev