On Tue, Apr 8, 2025, 14:46 JD Smith wrote:. I meant LSP version identifiers. After my success solving the current > problem using them, I believe ensuring the document version the LSP server > worked against when working up a response to the diagnostic pull request > matches the current version is vitally important. Luckily this looks to be > straightforward. > Yes. I'll take it under consideration, though I suspect it would be 10x easier > for someone more familiar with eglot's semantics and code conventions, > which are more complex than typical packages. > The main difficulty seems to be finding a server which supports this mode. Clangd and basedpyright don't seem to. > > Thanks. This tests fine on master. Performance in my large python buffer > is now refreshingly acceptable. Two questions: > > - Can we be certain that `eglot--versioned-identifier' is always an > integer? > No. It can be nil. But what it's not nil, it's an integer as specified in the standard. - Any reason not to implement this on the emacs-30 branch? Eglot is a GNU Elpa :core package and so it has its own release rhythm. I don't think the LSP server is to blame here. Yes, it's sending large > messages (too often) and getting behind, but it is dutifully providing the > document version number. I beg to differ. A server that is sending useless junk down the wire, however legal that junk is, is a server that should be fixed. As you well know, performance problems arise often from just parsing JSON into expensive Lisp structures. João