From bdfba8598b41b891e1fcc8b96163f442baf509b4 Mon Sep 17 00:00:00 2001 From: tris203 Date: Fri, 6 Dec 2024 16:25:13 +0000 Subject: [PATCH] fix(lsp): cancel pending requests before refreshing Problem: Diagnostics and inlay hints can be expensive to calculate, and we shouldn't stack them as this can cause noticeable lag. Solution: Check for duplicate inflight requests and cancel them before issuing a new one. This ensures that only the latest request is processed, improving performance and preventing potential conflicts. --- runtime/lua/vim/lsp/util.lua | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/runtime/lua/vim/lsp/util.lua b/runtime/lua/vim/lsp/util.lua index ced8aa5745..5bf436f2ca 100644 --- a/runtime/lua/vim/lsp/util.lua +++ b/runtime/lua/vim/lsp/util.lua @@ -2162,6 +2162,11 @@ function M._refresh(method, opts) local first = vim.fn.line('w0', window) local last = vim.fn.line('w$', window) for _, client in ipairs(clients) do + for rid, req in pairs(client.requests) do + if req.method == method and req.type == 'pending' and req.bufnr == bufnr then + client:cancel_request(rid) + end + end client:request(method, { textDocument = textDocument, range = make_line_range_params(bufnr, first - 1, last - 1, client.offset_encoding),