From 2526438c448282e3c6986fbaba2ed034bbbd9ae5 Mon Sep 17 00:00:00 2001
From: itchyny <itchyny@hatena.ne.jp>
Date: Sat, 8 Feb 2020 22:17:57 +0900
Subject: [PATCH] Register CursorMoved event only when required (#699)

---
 autoload/lsp.vim                         | 14 +++++++++++---
 autoload/lsp/ui/vim/diagnostics/echo.vim |  4 ----
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/autoload/lsp.vim b/autoload/lsp.vim
index ad0a062c..49600c67 100644
--- a/autoload/lsp.vim
+++ b/autoload/lsp.vim
@@ -189,9 +189,10 @@ function! s:register_events() abort
         if exists('##TextChangedP')
             autocmd TextChangedP * call s:on_text_document_did_change()
         endif
-        autocmd CursorMoved * call s:on_cursor_moved()
+        if g:lsp_diagnostics_echo_cursor || g:lsp_highlight_references_enabled
+            autocmd CursorMoved * call s:on_cursor_moved()
+        endif
         autocmd BufWinEnter,BufWinLeave,InsertEnter * call lsp#ui#vim#references#clean_references()
-        autocmd CursorMoved * if g:lsp_highlight_references_enabled | call lsp#ui#vim#references#highlight(v:false) | endif
     augroup END
     call s:on_text_document_did_open()
 endfunction
@@ -239,7 +240,14 @@ endfunction
 function! s:on_cursor_moved() abort
     let l:buf = bufnr('%')
     if getbufvar(l:buf, '&buftype') ==# 'terminal' | return | endif
-    call lsp#ui#vim#diagnostics#echo#cursor_moved()
+
+    if g:lsp_diagnostics_echo_cursor
+        call lsp#ui#vim#diagnostics#echo#cursor_moved()
+    endif
+
+    if g:lsp_highlight_references_enabled
+        call lsp#ui#vim#references#highlight(v:false)
+    endif
 endfunction
 
 function! s:call_did_save(buf, server_name, result, cb) abort
diff --git a/autoload/lsp/ui/vim/diagnostics/echo.vim b/autoload/lsp/ui/vim/diagnostics/echo.vim
index 923237fd..ab0c9f48 100644
--- a/autoload/lsp/ui/vim/diagnostics/echo.vim
+++ b/autoload/lsp/ui/vim/diagnostics/echo.vim
@@ -1,8 +1,4 @@
 function! lsp#ui#vim#diagnostics#echo#cursor_moved() abort
-    if !g:lsp_diagnostics_echo_cursor
-        return
-    endif
-
     if mode() isnot# 'n'
         " dont' show echo only in normal mode
         return