Add timeout to completionItem/resolve in completion.vim

autoload/lsp/client.vim

@@ -247,7 +247,13 @@ function! s:lsp_send(id, opts, type) abort " opts = { id?, method?, result?, par
     if (a:type == s:send_type_request)
         let l:id = l:request['id']
         if get(a:opts, 'sync', 0) !=# 0
+            let l:start_time = reltime()
+
+            let l:timeout = get(a:opts, 'sync_timeout', -1)
             while has_key(l:ctx['requests'], l:request['id'])
+                if reltimefloat(reltime(l:start_time)) > l:timeout && l:timeout != -1
+                    throw 'lsp#client: timeout'
+                endif
                 sleep 1m
             endwhile
         endif

autoload/lsp/ui/vim/completion.vim

@@ -134,13 +134,14 @@ function! s:resolve_completion_item(completion_item, server_name) abort
   let l:ctx = {}
   let l:ctx['response'] = {}
   function! l:ctx['callback'](data) abort
-    let l:self['response'] = a:data.response
+    let l:self['response'] = a:data['response']
   endfunction
 
   call lsp#send_request(a:server_name, {
         \   'method': 'completionItem/resolve',
         \   'params': a:completion_item,
         \   'sync': 1,
+        \   'sync_timeout': g:lsp_completion_resolve_timeout,
         \   'on_notification': function(l:ctx['callback'], [], l:ctx)
         \ })
 

doc/vim-lsp.txt

@@ -594,6 +594,12 @@ g:lsp_snippet_expand                                 *g:lsp_snippet_expand*
     The integration point to other snippet plugin.
     vim-lsp may invoke the first item of this value when it needs snippet expansion.
 
+g:lsp_completion_resolve_timeout         *g:lsp_completion_resolve_timeout*
+    Type: |Number|
+    Default: `200`
+
+    The `completionItem/resolve` request's timeout value.
+    If your vim freeze at `CompleteDone`, you can set this value to 0.
 
 ==============================================================================
 FUNCTIONS                                               *vim-lsp-functions*

plugin/lsp.vim

@@ -41,6 +41,7 @@ let g:lsp_hover_conceal = get(g:, 'lsp_hover_conceal', 1)
 let g:lsp_ignorecase = get(g:, 'lsp_ignorecase', &ignorecase)
 let g:lsp_semantic_enabled = get(g:, 'lsp_semantic_enabled', 1)
 let g:lsp_text_document_did_save_delay = get(g:, 'lsp_text_document_did_save_delay', -1)
+let g:lsp_completion_resolve_timeout = get(g:, 'lsp_completion_resolve_timeout', 200)
 
 let g:lsp_get_vim_completion_item = get(g:, 'lsp_get_vim_completion_item', [function('lsp#omni#default_get_vim_completion_item')])
 let g:lsp_get_supported_capabilities = get(g:, 'lsp_get_supported_capabilities', [function('lsp#default_get_supported_capabilities')])