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| author | Riley Bruins <ribru17@hotmail.com> | 2025-01-01 11:33:45 -0800 |
|---|---|---|
| committer | Christian Clason <ch.clason+github@icloud.com> | 2025-01-07 16:43:45 +0100 |
| commit | d9ee0d2984e5fc30cb032785d32f42c72c7e64e1 (patch) | |
| tree | e4f3c6e9be47fb20dcef3cfa0253da7699e50ce7 /runtime/doc | |
| parent | b67fcd0488746b079a3b721ae4800af94cd126e1 (diff) | |
| download | rneovim-d9ee0d2984e5fc30cb032785d32f42c72c7e64e1.tar.gz rneovim-d9ee0d2984e5fc30cb032785d32f42c72c7e64e1.tar.bz2 rneovim-d9ee0d2984e5fc30cb032785d32f42c72c7e64e1.zip | |
perf(treesitter): don't fetch parser for each fold line
**Problem:** The treesitter `foldexpr` calls `get_parser()` for each
line in the buffer when calculating folds. This can be incredibly slow
for buffers where a parser cannot be found (because the result is not
cached), and exponentially more so when the user has many
`runtimepath`s.
**Solution:** Only fetch the parser when it is needed; that is, only
when initializing fold data for a buffer.
Co-authored-by: Jongwook Choi <wookayin@gmail.com>
Co-authored-by: Justin M. Keyes <justinkz@gmail.com>
Diffstat (limited to 'runtime/doc')
| -rw-r--r-- | runtime/doc/news.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/runtime/doc/news.txt b/runtime/doc/news.txt index b7606e65f5..17f85154c2 100644 --- a/runtime/doc/news.txt +++ b/runtime/doc/news.txt @@ -287,6 +287,8 @@ PERFORMANCE highlighting. • LSP diagnostics and inlay hints are de-duplicated (new requests cancel inflight requests). This greatly improves performance with slow LSP servers. +• 10x speedup for |vim.treesitter.foldexpr()| (when no parser exists for the + buffer). PLUGINS |