[PATCH] D59811: [clangd] Add fallback mode for code completion when compile command or preamble is not ready.

[Eric Liu via Phabricator via cfe-commits]

ioeric created this revision.
ioeric added a reviewer: ilya-biryukov.
Herald added subscribers: cfe-commits, jdoerfert, kadircet, arphaman, jkorous, MaskRay, javed.absar.
Herald added a project: clang.

When calling TUScehduler::runWithPreamble (e.g. in code compleiton), allow
entering a fallback mode when compile command or preamble is not ready, instead of
waiting. This allows clangd to perform naive code completion e.g. using identifiers
in the current file or symbols in the index.

This patch simply returns empty result for code completion in fallback mode. Identifier-based
plus more advanced index-based completion will be added in followup patches.


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D59811

Files:
  clangd/ClangdServer.cpp
  clangd/TUScheduler.cpp
  clangd/TUScheduler.h
  clangd/Threading.h
  unittests/clangd/ClangdTests.cpp
  unittests/clangd/CodeCompleteTests.cpp
  unittests/clangd/TUSchedulerTests.cpp

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D59811.192251.patch
Type: text/x-patch
Size: 23538 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20190326/5de7da10/attachment-0001.bin>