deoplete-clang doesn't complete include content unless I reopen the file.

[XDXX]

Problems summary

I'm using the deoplete + deoplete-clang + neoinclude. When my file #include <limits.h> and
I typing INT it will not show any completion candidates. If I reopen that file and typing INT
it will show completion candidates like INT_MAX and INT_MIN.

Expected

Completing include content without reopen the code file.

Environment Information

• OS: Arch Linux
• Neovim version: 0.1.4

Provide a minimal init.vim with less than 50 lines and not plugin manager (Required!)

" Your minimal init.vim
set runtimepath+=~/path/to/deoplete.nvim/
set runtimepath+=~/path/to/deoplete-clang/
let g:deoplete#enable_at_startup = 1

" Use smartcase
let g:deoplete#enable_smart_case = 1

" Let <Tab> also do completion
inoremap <expr><tab> pumvisible() ? "\<c-n>" : "\<tab>"

"close the preview window after completion is done.
autocmd CompleteDone * pclose!

" completion bracket
call deoplete#custom#set('_', 'converters', ['converter_auto_paren'])

" Deoplete-clang
let g:deoplete#sources#clang#libclang_path = '/usr/lib/libclang.so'
let g:deoplete#sources#clang#clang_header = '/usr/lib/clang'

The reproduce ways from neovim starting (Required!)

#include <limits.h>
INT   //will not show any completion candidates

save and reopen that file

#include <limits.h>
INT  //will show completion candidates like INT_MAX and INT_MIN

I'm not sure it's deoplete-clang or other plugin's problems.
Thanks for any help.

[Shougo]

I think the problem is...
#43 (comment)

[ghost]

Hi there,

I am using neovim and freshest code for deoplete and deoplete-clang, and having the same problem. Completion from files included happens only after reopening the source file. This is happening regardless of the file included.

Does anyone have a clue? @XDXX have you solved the issue?

My setup

• RedHat 7

• Clang 3.4.2

• NVIM v0.2.0

My init.vim (part of it)

let g:deoplete#enable_at_startup = 1                                                                                                           
let g:deoplete#sources#clang#libclang_path= '/usr/lib64/llvm/libclang.so'                         
let g:deoplete#sources#clang#clang_header = '/usr/lib/clang'                                                  
let g:deoplete#sources#clang#sort_algo = 'priority'                                                          
set completeopt-=preview`            

Thanks,
Christian

[XDXX]

@christian-pinto This problem still bothers me and I don't have andy clue about it. Hope @zchee will fix this issue soon.

[Shougo]

deplete-clang2 exists. It has the same problem?

[ghost]

I have just tested deoplete-clang2, it works with the includes. In previous post I forgot to mention that I am also using neoinclude.

However deoplete-clang2 has another problem for me that is translation is not always performed. As an example i write mmap, nothing appears, then I delete some characters and type again and the mmap autocompletion from clang appears. This is annoying since everytime i need to back and forth typing and deleting in order to get the autocompletion.