Hold file content per servers

Author: mattn

autoload/lsp.vim

@@ -4,6 +4,8 @@ let s:servers = {} " { lsp_id, server_info, init_callbacks, init_result, buffers
 
 let s:notification_callbacks = [] " { name, callback }
 
+let s:file_content = {}
+
 " do nothing, place it here only to avoid the message
 augroup _lsp_silent_
     autocmd!
@@ -219,9 +221,25 @@ function! s:on_text_document_did_close() abort
     call lsp#log('s:on_text_document_did_close()', l:buf)
 endfunction
 
+function! lsp#get_last_file_content(server_name, buf) abort
+    if has_key(s:file_content, a:buf) && has_key(s:file_content[a:buf], a:server_name)
+        return s:file_content[a:buf][a:server_name]
+    endif
+    return []
+endfunction
+
+function! lsp#update_file_content(server_name, buf, new) abort
+    if !has_key(s:file_content, a:buf)
+        let s:file_content[a:buf] = {}
+    endif
+    let s:file_content[a:buf][a:server_name] = a:new
+endfunction
+
 function! s:on_buf_wipeout(buf) abort
     if has_key(s:file_content, a:buf)
-        call remove(s:file_content, a:buf)
+        for l:server_name in lsp#get_whitelisted_servers()
+            call remove(s:file_content[a:buf], l:server_name)
+        endfor
     endif
 endfunction
 
@@ -407,9 +425,8 @@ function! s:ensure_conf(buf, server_name, cb) abort
     call a:cb(l:msg)
 endfunction
 
-let s:file_content = {}
-
 function! s:text_changes(server_name, buf) abort
+	echomsg a:server_name
   let l:sync_kind = lsp#capabilities#get_text_document_change_sync_kind(a:server_name)
 
   " When syncKind is None, return null for contentChanges.
@@ -420,16 +437,16 @@ function! s:text_changes(server_name, buf) abort
   " When syncKind is Incremental and previous content is saved.
   if l:sync_kind == 2 && has_key(s:file_content, a:buf)
     " compute diff
-    let l:old_content = get(s:file_content, a:buf, [])
+    let l:old_content = lsp#get_last_file_content(a:server_name, a:buf)
     let l:new_content = getbufline(a:buf, 1, '$')
     let l:changes = lsp#utils#diff#compute(l:old_content, l:new_content)
-    let s:file_content[a:buf] = l:new_content
+    call lsp#update_file_content(a:server_name, a:buf, l:new_content)
     return [l:changes]
   endif
 
   let l:new_content = getbufline(a:buf, 1, '$')
   let l:changes = {'text': join(l:new_content, "\n")}
-  let s:file_content[a:buf] = l:new_content
+  call lsp#update_file_content(a:server_name, a:buf, l:new_content)
   return [l:changes]
 endfunction