From ffb340bf63af42ac347e23e0488898adc4391328 Mon Sep 17 00:00:00 2001 From: Jaehwang Jung Date: Thu, 24 Aug 2023 17:32:43 +0900 Subject: [PATCH] fix(treesitter): update folds only once on InsertLeave Problem: With treesitter fold, InsertLeave can be slow, because a single session of insert mode may schedule multiple fold updates in on_bytes and on_changedtree. Solution: Don't create duplicate autocmds. --- runtime/lua/vim/treesitter/_fold.lua | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/runtime/lua/vim/treesitter/_fold.lua b/runtime/lua/vim/treesitter/_fold.lua index 912a6e8a9f..d82e04a5a8 100644 --- a/runtime/lua/vim/treesitter/_fold.lua +++ b/runtime/lua/vim/treesitter/_fold.lua @@ -235,6 +235,8 @@ local M = {} ---@type table local foldinfos = {} +local group = api.nvim_create_augroup('treesitter/fold', {}) + --- Update the folds in the windows that contain the buffer and use expr foldmethod (assuming that --- the user doesn't use different foldexpr for the same buffer). --- @@ -253,7 +255,15 @@ local function foldupdate(bufnr) if api.nvim_get_mode().mode == 'i' then -- foldUpdate() is guarded in insert mode. So update folds on InsertLeave + if #(api.nvim_get_autocmds({ + group = group, + buffer = bufnr, + })) > 0 then + return + end api.nvim_create_autocmd('InsertLeave', { + group = group, + buffer = bufnr, once = true, callback = do_update, })