Commit Graph

4 Commits

Author SHA1 Message Date
Haojian Wu 6ece6e7dad [clangd] Clear the semantic of RefSlab::size.
Summary:
The RefSlab::size can easily cause confusions, it returns the number of
different symbols, rahter than the number of all references.

- add numRefs() method and cache it, since calculating it everytime is nontrivial.
- clear misused places.

Reviewers: sammccall

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

Differential Revision: https://reviews.llvm.org/D53389

llvm-svn: 344745
2018-10-18 15:33:20 +00:00
Sam McCall bca624ab03 [clangd] Fix threading bugs in (not-yet-used) BackgroundIndex, re-enable test.
Summary:
One relatively boring bug: forgot to notify the CV after enqueue.

One much more fun bug: the thread member could access instance variables before
they were initialized. Although the thread was last in the init list, QueueCV
etc were listed after Thread in the class, so their default constructors raced
with the thread itself.
We have to get very unlucky to lose this race, I saw it 0.02% of the time.

Reviewers: ioeric

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

Differential Revision: https://reviews.llvm.org/D53313

llvm-svn: 344595
2018-10-16 09:05:13 +00:00
Sam McCall 96f2489557 [clangd] Optionally use dex for the preamble parts of the dynamic index.
Summary:
Reuse the old -use-dex-index experiment flag for this.

To avoid breaking the tests, make Dex deduplicate symbols, addressing an old FIXME.

Reviewers: hokein

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

Differential Revision: https://reviews.llvm.org/D53288

llvm-svn: 344594
2018-10-16 08:53:52 +00:00
Sam McCall 8dc9dbb61a [clangd] Minimal implementation of automatic static index (not enabled).
Summary:
See tinyurl.com/clangd-automatic-index for design and goals.

Lots of limitations to keep this patch smallish, TODOs everywhere:
 - no serialization to disk
 - no changes to dynamic index, which now has a much simpler job
 - no partitioning of symbols by file to avoid duplication of header symbols
 - no reindexing of edited files
 - only a single worker thread
 - compilation database is slurped synchronously (doesn't scale)
 - uses memindex, rebuilds after every file (should be dex, periodically)

It's not hooked up to ClangdServer/ClangdLSPServer yet: the layering
isn't clear (it should really be in ClangdServer, but ClangdLSPServer
has all the CDB interactions).

Reviewers: ioeric

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

Differential Revision: https://reviews.llvm.org/D53032

llvm-svn: 344513
2018-10-15 13:34:10 +00:00