[PATCH] D63986: [clangd] Also cache failures while indexing

[Kadir Cetinkaya via Phabricator via cfe-commits]

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

Clangd currently doesn't cache any indexing failures, which results in
retrying those failed files even if their contents haven't changed.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D63986

Files:
  clang-tools-extra/clangd/index/Background.cpp
  clang-tools-extra/clangd/index/Background.h
  clang-tools-extra/clangd/index/IndexAction.cpp
  clang-tools-extra/clangd/index/Serialization.h
  clang-tools-extra/clangd/unittests/BackgroundIndexTests.cpp

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