From 75e53341f37eeeda7d9be7f934249f7e5e4397e9 Mon Sep 17 00:00:00 2001 From: Lewis Russell Date: Thu, 23 Feb 2023 15:19:52 +0000 Subject: perf(treesitter): smarter languagetree invalidation Problem: Treesitter injections are slow because all injected trees are invalidated on every change. Solution: Implement smarter invalidation to avoid reparsing injected regions. - In on_bytes, try and update self._regions as best we can. This PR just offsets any regions after the change. - Add valid flags for each region in self._regions. - Call on_bytes recursively for all children. - We still need to run the query every time for the top level tree. I don't know how to avoid this. However, if the new injection ranges don't change, then we re-use the old trees and avoid reparsing children. This should result in roughly a 2-3x reduction in tree parsing when the comment injections are enabled. --- runtime/lua/vim/treesitter/query.lua | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'runtime/lua/vim/treesitter/query.lua') diff --git a/runtime/lua/vim/treesitter/query.lua b/runtime/lua/vim/treesitter/query.lua index 58a29f2fe0..13d98a0625 100644 --- a/runtime/lua/vim/treesitter/query.lua +++ b/runtime/lua/vim/treesitter/query.lua @@ -406,7 +406,7 @@ predicate_handlers['vim-match?'] = predicate_handlers['match?'] ---@class TSMetadata ---@field [integer] TSMetadata ---@field [string] integer|string ----@field range Range +---@field range Range4 ---@alias TSDirective fun(match: TSMatch, _, _, predicate: any[], metadata: TSMetadata) -- cgit