Commit Graph

24 Commits

Author SHA1 Message Date
Haojian Wu 34f5188d0f [clangd] Add include-mapping for C symbols.
Summary:
This resolves the issue of introducing c++-style includes for C files.

- refactor the gen_std.py, make it reusable for parsing C symbols.
- add a language mode to the mapping method to use different mapping for
  C and C++ files.

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, jfb, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D63270

llvm-svn: 364044
2019-06-21 13:32:18 +00:00
Haojian Wu 228b130a4b [clangd] Fix buildbot error.
llvm-svn: 361960
2019-05-29 14:11:53 +00:00
Haojian Wu 4c5a0d1683 [clangd] Remove the whitelist std symbols in CanonicalIncludes.
Summary: These symbols have been included via StdSymbolMap.inc.

Reviewers: sammccall

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62527

llvm-svn: 361952
2019-05-29 12:08:11 +00:00
Sam McCall 62e2472321 [clangd] Include insertion: require header guards, drop other heuristics, treat .def like .inc.
Summary:
We do have some reports of include insertion behaving badly in some
codebases. Requiring header guards both makes sense in principle, and is
likely to disable this "nice-to-have" feature in codebases where headers don't
follow the expected pattern.

With this we can drop some other heuristics, such as looking at file
extensions to detect known non-headers - implementation files have no guards.

One wrinkle here is #import - objc headers may not have guards because
they're intended to be used via #import. If the header is the main file
or is #included, we won't collect locations - merge should take care of
this if we see the file #imported somewhere. Seems likely to be OK.

Headers which have a canonicalization (stdlib, IWYU) are exempt from this check.
*.inc files continue to be handled by looking up to the including file.
This patch also adds *.def here - tablegen wants this pattern too.

In terms of code structure, the division between SymbolCollector and
CanonicalIncludes has shifted: SymbolCollector is responsible for more.
This is because SymbolCollector has all the SourceManager/HeaderSearch access
needed for checking for guards, and we interleave these checks with the *.def
checks in a loop (potentially).
We could hand all the info into CanonicalIncludes and put the logic there
if that's preferable.

Reviewers: ioeric

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D60316

llvm-svn: 358571
2019-04-17 10:36:02 +00:00
Haojian Wu 7f51b5dc32 [clangd] Using symbol name to map includes for STL symbols.
Summary:
Using suffix path mapping relies on the STL implementations, and it is
not portable. This patch is using symbol name mapping, which should
work with different STL implementations, fix clangd/clangd#9.

To generate the symbol mapping, we parse the cppreference symbol index
page to build a lookup table.

The mapping is not completed, a few TODOs:
  - support symbols from different headers (e.g. std::move)
  - support STL macros
  - support symbols from std's sub-namespaces (e.g. chrono)

Reviewers: ioeric, jfb, serge-sans-paille

Reviewed By: ioeric

Subscribers: sammccall, klimek, ilya-biryukov, ioeric, MaskRay, jkorous, mgrang, arphaman, kadircet, jfb, jdoerfert, cfe-commits

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D58345

llvm-svn: 356134
2019-03-14 11:25:26 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

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

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

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Ilya Biryukov f2001aa743 [clangd] Remove 'using namespace llvm' from .cpp files. NFC
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
2019-01-07 15:45:19 +00:00
Sam McCall c008af6466 [clangd] Namespace style cleanup in cpp files. NFC.
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
2018-10-20 15:30:37 +00:00
Kirill Bobyrev 4a5ff88fdb [clangd] NFC: Migrate to LLVM STLExtras API where possible
This patch improves readability by migrating `std::function(ForwardIt
start, ForwardIt end, ...)` to LLVM's STLExtras range-based equivalent
`llvm::function(RangeT &&Range, ...)`.

Similar change in Clang: D52576.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D52650

llvm-svn: 343937
2018-10-07 14:49:41 +00:00
Eric Liu d5d6a60a78 [clangd] Fix header mapping for std::string. NFC
Some implementation has std::string declared in <iosfwd>.

llvm-svn: 343448
2018-10-01 08:50:49 +00:00
Eric Liu f76886859f [clangd] Canonicalize include paths in clangd.
Get rid of "../"  and "../../".

llvm-svn: 341645
2018-09-07 09:40:36 +00:00
Ilya Biryukov 22abe49fff [clangd] Get rid of regexes in CanonicalIncludes
Summary: Replace them with suffix mappings.

Reviewers: ioeric, kbobyrev

Reviewed By: ioeric

Subscribers: MaskRay, jkorous, arphaman, jfb, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D51088

llvm-svn: 340410
2018-08-22 13:51:19 +00:00
Eric Liu 3cee95e723 [clangd] Skip .inc headers when canonicalizing header #include.
Summary:
This assumes that .inc files are supposed to be included via headers
that include them.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: klimek, ilya-biryukov, MaskRay, jkorous, cfe-commits

Differential Revision: https://reviews.llvm.org/D47187

llvm-svn: 333188
2018-05-24 14:40:24 +00:00
Eric Liu cf377a1434 [clangd] Correctly handle IWYU prama with verbatim #include header.
llvm-svn: 332959
2018-05-22 08:33:30 +00:00
Eric Liu 7920d2ea4e [clangd] Minor fixes for C++ standard library header mapping.
llvm-svn: 330803
2018-04-25 09:17:05 +00:00
Eric Liu 39195e64e2 [clangd] Make symbol name a required parameter for CanonicalIncludes::mapHeader
llvm-svn: 326458
2018-03-01 18:30:48 +00:00
Eric Liu b96363da76 [clangd] Support include canonicalization in symbol leve.
Summary:
Symbols with different canonical includes might be defined in the same header
(e.g. symbols defined in STL <iosfwd>). This patch adds support for mapping from
qualified symbol names to canonical headers and special mapping for symbols in <iosfwd>

Reviewers: sammccall, hokein

Reviewed By: sammccall

Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43869

llvm-svn: 326456
2018-03-01 18:06:40 +00:00
Eric Liu 06d4181140 [clangd] A few more fixes for STL header mapping.
llvm-svn: 326325
2018-02-28 14:02:18 +00:00
Eric Liu 212e67619a [clangd] A few minor fixes for STL internal header mapping.
llvm-svn: 326310
2018-02-28 08:56:11 +00:00
Eric Liu 352f92c8d6 [clangd] Update canonical header mapping for STL
llvm-svn: 325694
2018-02-21 16:17:25 +00:00
Eric Liu 709bde886d [clangd] Fixes for #include insertion.
Summary:
o Avoid inserting a header include into the header itself.
o Avoid inserting non-header files (by not indexing symbols in main
files at all).
o Canonicalize include paths for symbols in dynamic index.

Reviewers: sammccall, ilya-biryukov

Reviewed By: ilya-biryukov

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43462

llvm-svn: 325523
2018-02-19 18:48:44 +00:00
Eric Liu bc023a15a0 [clangd] Try to fix build bot failure caused by r325343: escape regex string.
llvm-svn: 325482
2018-02-19 10:45:48 +00:00
Eric Liu e44533b7f1 [clangd] remove redundant ';' introduced in r325343
llvm-svn: 325346
2018-02-16 14:47:08 +00:00
Eric Liu c5105f9e3c [clangd] collect symbol #include & insert #include in global code completion.
Summary:
o Collect suitable #include paths for index symbols. This also does smart mapping
for STL symbols and IWYU pragma (code borrowed from include-fixer).
o For global code completion, add a command for inserting new #include in each code
completion item.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: klimek, mgorny, ilya-biryukov, jkorous-apple, hintonda, cfe-commits

Differential Revision: https://reviews.llvm.org/D42640

llvm-svn: 325343
2018-02-16 14:15:55 +00:00