doomemacs/modules/tools/lsp/config.el
Henrik Lissner 6c0881c684
nit: revise TODO/FIXME/HACK/REVIEW/etc in comments
Some were outdated, some were incorrectly labeled, others were already
completed, some were missing... Gotta fix them all.

Also, in :ui hl-todo, there are comments that describe how Doom uses
each of these annotations; those have been updated.
2026-03-02 19:45:09 -05:00

50 lines
2 KiB
EmacsLisp

;;; tools/lsp/config.el -*- lexical-binding: t; -*-
(defvar +lsp-defer-shutdown 3
"If non-nil, defer shutdown of LSP servers for this many seconds after last
workspace buffer is closed.
This delay prevents premature server shutdown when a user still intends on
working on that project after closing the last buffer, or when programmatically
killing and opening many LSP/eglot-powered buffers.")
;;
;;; Common
(defvar +lsp--default-read-process-output-max nil)
(defvar +lsp--default-gcmh-high-cons-threshold nil)
(defvar +lsp--optimization-init-p nil)
(define-minor-mode +lsp-optimization-mode
"Deploys universal GC and IPC optimizations for `lsp-mode' and `eglot'."
:global t
:init-value nil
(if (not +lsp-optimization-mode)
;; Only apply these settings once! A minor mode's body is triggered each
;; time it is called, even if it's already in the desired state.
(when +lsp--optimization-init-p
(setq-default read-process-output-max +lsp--default-read-process-output-max
gcmh-high-cons-threshold +lsp--default-gcmh-high-cons-threshold
+lsp--optimization-init-p nil))
;; See above.
(unless +lsp--optimization-init-p
(setq +lsp--default-read-process-output-max (default-value 'read-process-output-max)
+lsp--default-gcmh-high-cons-threshold (default-value 'gcmh-high-cons-threshold))
(setq-default read-process-output-max (* 1024 1024))
;; REVIEW: LSP causes a lot of allocations, with or without the native
;; JSON library, so we up the GC threshold to stave off GC-induced
;; slowdowns/freezes. Doom uses `gcmh' to enforce its GC strategy, so we
;; modify its variables rather than `gc-cons-threshold' directly.
(setq-default gcmh-high-cons-threshold (* 2 +lsp--default-gcmh-high-cons-threshold))
(when (bound-and-true-p gcmh-mode)
(gcmh-set-high-threshold))
(setq +lsp--optimization-init-p t))))
;;
;;; Implementations
(if (modulep! +eglot)
(load! "+eglot")
(load! "+lsp"))