[PATCH] D48441: [clangd] Incorporate transitive #includes into code complete proximity scoring.

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
sammccall added a reviewer: ioeric.
Herald added subscribers: cfe-commits, jkorous, MaskRay, ilya-biryukov, mgorny.

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.


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D48441

Files:
  clangd/CMakeLists.txt
  clangd/ClangdServer.cpp
  clangd/ClangdUnit.cpp
  clangd/ClangdUnit.h
  clangd/CodeComplete.cpp
  clangd/CodeComplete.h
  clangd/FileDistance.cpp
  clangd/FileDistance.h
  clangd/Headers.cpp
  clangd/Headers.h
  clangd/Quality.cpp
  clangd/Quality.h
  clangd/XRefs.cpp
  unittests/clangd/CMakeLists.txt
  unittests/clangd/FileDistanceTests.cpp
  unittests/clangd/HeadersTests.cpp
  unittests/clangd/QualityTests.cpp

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