From 144b3386e9efbcc52c4233e59f5995b0f0be0fc1 Mon Sep 17 00:00:00 2001
From: Guangxiong Lin <hi@gxlin.org>
Date: Sat, 9 Apr 2022 14:03:41 +0800
Subject: Use clangd to help complete c-family language (vim)

---
 .vim/after/plugin/lsp.vim        | 8 ++++++++
 .vim/after/plugin/mucomplete.vim | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/.vim/after/plugin/lsp.vim b/.vim/after/plugin/lsp.vim
index 9183f7d..a5f6e73 100644
--- a/.vim/after/plugin/lsp.vim
+++ b/.vim/after/plugin/lsp.vim
@@ -17,6 +17,14 @@ if executable('gopls')
           \ })
 endif
 
+if executable('clangd')
+    au User lsp_setup call lsp#register_server({
+                \ 'name': 'clangd',
+                \ 'cmd': {server_info->['clangd']},
+                \ 'allowlist': ['c', 'cpp'],
+                \ })
+endif
+
 function! s:on_lsp_buffer_enabled() abort
     setlocal omnifunc=lsp#complete
     if exists('+tagfunc') | setlocal tagfunc=lsp#tagfunc | endif
diff --git a/.vim/after/plugin/mucomplete.vim b/.vim/after/plugin/mucomplete.vim
index 5287c25..cdfbe11 100644
--- a/.vim/after/plugin/mucomplete.vim
+++ b/.vim/after/plugin/mucomplete.vim
@@ -7,6 +7,15 @@ let g:mucomplete#can_complete = {}
 let s:default_cond = { t -> t =~# '\%(\.\)$' }
 let g:mucomplete#can_complete.default = { 'omni': s:default_cond }
 
+let s:c_cond = { t -> t =~# '\%(\.\|->\)$' }
+let g:mucomplete#can_complete.c = { 'omni': s:c_cond }
+let g:mucomplete#can_complete.objc = { 'omni': s:c_cond }
+
+let s:cpp_cond = { t -> t =~# '\%(\.\|->\|::\)$' }
+let g:mucomplete#can_complete.cpp = { 'omni': s:cpp_cond }
+let g:mucomplete#can_complete.objcpp = { 'omni': s:cpp_cond }
+let g:mucomplete#can_complete.cuda = { 'omni': s:cpp_cond }
+
 let g:mucomplete#chains = {}
 let g:mucomplete#chains.default = 
       \ [ 'ulti', 'user', 'omni', 'tags', 'keyn', 'path' ]
-- 
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