From f374e3c45128f2db89df3369a07dda4c78c2ebbf Mon Sep 17 00:00:00 2001
From: blyoa <blyoa@users.noreply.github.com>
Date: Tue, 25 Jan 2022 08:00:12 +0900
Subject: [PATCH] use only a server that is the completionProvider

---
 autoload/ddc_vim_lsp.vim       | 12 ++++++++++++
 denops/@ddc-sources/vim-lsp.ts |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/autoload/ddc_vim_lsp.vim b/autoload/ddc_vim_lsp.vim
index d00a62c..b8fe422 100644
--- a/autoload/ddc_vim_lsp.vim
+++ b/autoload/ddc_vim_lsp.vim
@@ -26,3 +26,15 @@ function! ddc_vim_lsp#request(server_name, id) abort
     \ 'on_notification': function('ddc_vim_lsp#_callback', [l:server, l:position, a:id]),
     \ })
 endfunction
+
+
+function! ddc_vim_lsp#get_completion_servers() abort
+  let l:names = []
+  for l:server_name in lsp#get_allowed_servers()
+    let l:capabilities = lsp#get_server_capabilities(l:server_name)
+    if has_key(l:capabilities, 'completionProvider')
+      call add(l:names, l:server_name)
+    endif
+  endfor
+  return l:names
+endfunction
diff --git a/denops/@ddc-sources/vim-lsp.ts b/denops/@ddc-sources/vim-lsp.ts
index 36a5555..f67d73a 100644
--- a/denops/@ddc-sources/vim-lsp.ts
+++ b/denops/@ddc-sources/vim-lsp.ts
@@ -18,7 +18,7 @@ export class Source extends BaseSource<Params> {
     this.counter = (this.counter + 1) % 100;
 
     const lspservers: string[] = await args.denops.call(
-      "lsp#get_allowed_servers",
+      "ddc_vim_lsp#get_completion_servers",
       // deno-lint-ignore no-explicit-any
     ) as any;
     if (lspservers.length === 0) {