Commit Graph

5 Commits

Author SHA1 Message Date
Sam McCall bc7cbb7895 [clangd] Boost fuzzy match score by 2x (so a maximum of 2) when the query is the full identifier name.
Summary: Fix a couple of bugs in tests an in Quality to keep tests passing.

Reviewers: ioeric

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

Differential Revision: https://reviews.llvm.org/D47815

llvm-svn: 334089
2018-06-06 12:38:37 +00:00
Sam McCall 37c4d6d725 [clangd] Address missed comments from D44003
llvm-svn: 326798
2018-03-06 14:30:07 +00:00
Sam McCall 77a719cb9e [clangd] Fix unintentionally loose fuzzy matching, and the tests masking it.
Summary:
The intent was that [ar] doesn't match "FooBar"; the first character must match
a Head character (hard requirement, not just a low score).
This matches VSCode, and was "tested" but the tests were defective.

The tests expected matches("FooBar") to fail for lack of a match. But instead
it fails because the string should be annotated - matches("FooB[ar]").
This patch makes matches("FooBar") ignore annotations, as was intended.

Fixing the code to reject weak matches for the first char causes problems:
-  [bre] no longer matches "HTMLBRElement".
   We allow matching against an uppercase char even if we don't think it's head.
   Only do this if there's at least one lowercase, to avoid triggering on MACROS
-  [print] no longer matches "sprintf".
   This is hard to fix without false positives (e.g. [int] vs "sprintf"])
   This patch leaves this case broken. A future patch will add a dictionary
   providing custom segmentation to common names from the standard library.

Fixed a couple of index tests that indirectly relied on broken fuzzy matching.
Added const in a couple of missing places for consistency with new code.

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

Differential Revision: https://reviews.llvm.org/D44003

llvm-svn: 326721
2018-03-05 17:34:33 +00:00
Sam McCall 09b4be51a8 [clangd] Fix uninitialized-read found by asan
llvm-svn: 322443
2018-01-13 16:46:26 +00:00
Sam McCall 87496417ff [clangd] Fuzzy match scorer
Summary:
This will be used for rescoring code completion results based on partial
identifiers.
Short-term use:
  - we want to limit the number of code completion results returned to
  improve performance of global completion. The scorer will be used to
  rerank the results to return when the user has applied a filter.
Long-term use case:
  - ranking of completion results from in-memory index
  - merging of completion results from multiple sources (merging usually
  works best when done at the component-score level, rescoring the
  fuzzy-match quality avoids different backends needing to have
  comparable scores)

Reviewers: ilya-biryukov

Subscribers: cfe-commits, mgorny

Differential Revision: https://reviews.llvm.org/D40060

llvm-svn: 319557
2017-12-01 17:08:02 +00:00