Today I decided to :PlugUpdate. Not sure if that's why, but I later today realized no completions at all worked.

It has worked previously, and my init.vim file looks like this, where it's worth to point out

call plug#begin()
Plug 'rust-lang/rust.vim'
Plug 'racer-rust/vim-racer'
call plug#end()

and

filetype plugin indent on

let g:racer_cmd = '~/.cargo/bin/racer'
let g:racer_experimental_completer = 1

No idea why it fails. Still doesn't work if I replace ~ with /home/legolord208, so it's not the expansion that is the problem.

EDIT:

Still doesn't work

accidentally said "Works" at first

TL;DR Omni completion (^O^N^P) Pattern not found

gd currently exists to jump to a definition. Is it possible to add capabilities for a tag stack?

I imagine that CTRL+] could use the same underlying jump-to-definition functionality that gd uses, with the addition that CTRL+T could pop us back to the previous location.

I'd be interested in adding this myself, but don't know where to start.

In Vim and GVim on Windows when I type prin<C-x><C-o> then select println! I see prinprintln! in the buffer instead of println!.

A short _vimrc is attached in case the fault is in there.

Ctrl + x + Ctrl + o (using mac's control key) does not bring up any completions for me. Sometimes it brings up "pattern not found" and at other times it seems to bring up my vimrc or take me to the top of the file I'm editing.

I have racer installeed and working (the example command from the Racer readme returns the expected result)

Racer / System info

macOS Catalina 10.15.7 rustc 1.52.0-nightly (caca2121f 2021-03-05) racer 2.1.44 echo $RUST_SRC_PATH: /Users/murtyjones/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/library

~/.vimrc

set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'VundleVim/Vundle.vim'

Plugin 'racer-rust/vim-racer'

" All of your Plugins must be added before the following line
call vundle#end()            " required

" ... redacted

set hidden
let g:racer_cmd = "/Users/murtyjones/.cargo/bin/racer"
let g:racer_experimental_completer = 1
let g:racer_insert_paren = 1

I installed racer globally and also I have the source installed by running rustup component add rust-src.

I have the plugin in .vim/bundle/rust_racer/plugin/rust_racer.vim, downloaded from the ftplugin folder from this repo.

And finally - in .vimrc I have:

set runtimepath^=~/.vim/bundle/rust_racer

" Set rust autocompletion tool "racer" ..
set hidden
let g:racer_cmd = "/home/petar/.cargo/bin/racer"
let $RUST_SRC_PATH="/home/petar/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src"

But when I open a rs file and try Ctrl+x + Ctrl+o - I get this error: Error "E117: Unknown function: racer#RacerComplete

Any ideas?

I'm in linux using nvim 0.1.4.

I cloned racer into ~/work/rust/lib, and ran cargo build. In my vimrc:

Plug 'racer-rust/vim-racer'
set hidden
let g:racer_cmd='/home/ploppz/work/rust/lib/racer/target/debug/racer'
let $RUST_SRC_PATH='/home/ploppz/work/rust/lib/racer/src/'

But the plugin doesn't work. There's no useful completion, and hotkeys like gd don't do anything. It worked earlier. What changed since then is just that I cloned and built the racer repository anew. (edit: this is ~/work/rust/lib/racer)

It seems like I always get the same list of completions provided, no matter what I position my cursor after. Of course, if I've already written R then only the ones starting with R will be provided as options, but the "source list" from which it will provide the suggestions seems to be the same every time.

The "available" completions are these:

AsMut AsRef Box Clone Copy Debug Decodable Default DoubleEndedIterator Drop
Encodable Eq Err ExactSizeIterator Extend FIXME Fn FnMut FnOnce From
FromPrimitive Hash Into IntoIterator Iterator NB NOTE None Ok Option Ord
PartialEq PartialOrd Rand Result RustcDecodable RustcEncodable Self Send Show
Sized SliceConcatExt Some String Sync TODO ToOwned ToString Vec XXX abstract
alignof as become bool box break char const continue crate display do else enum
extern f32 f64 false final fn for i16 i32 i64 i8 if impl in isize let loop
macro match mod move mut offsetof override priv pub pure ref return self size
sizeof static str struct super trait transparent true type typeof u16 u32 u64
u8 unsafe unsized use usize virtual where while

For a one-completion-per-line list, read this gist.

It seem like set omnifunc=syntaxcomplete#Complete is needed, or nothing works fro me. Is that expected ?

Still it does not work perfectly C-x-C-o delete the start of the line before the token being completed. Am I doing something wrong ? Thanks.

System info

OS: Debian 10 nvim --version output:

NVIM v0.3.7
Build type: Release
LuaJIT 2.0.5
Compilation: /usr/bin/cc -Wconversion -O2 -DNDEBUG -DMIN_LOG_LEVEL=3 -Wall -Wextra -pedantic -Wno-unused-parameter -Wstrict-prototypes -std=gnu99 -Wimplicit-fallthrough -Wvla -fstack-protector-strong -fdiagnostics-color=auto -Wno-array-bounds -DINCLUDE_GENERATED_DECLARATIONS -D_GNU_SOURCE -DNVIM_UNIBI_HAS_VAR_FROM -I/home/mac/build_src/neovim/build/config -I/home/mac/build_src/neovim/src -I/home/mac/build_src/neovim/.deps/usr/include -I/usr/include -I/home/mac/build_src/neovim/build/src/nvim/auto -I/home/mac/build_src/neovim/build/include
Compiled by mac@debian

Features: +acl +iconv +jemalloc +tui

Problem description:

Racer keeps crashing under certain conditions and when it does and does so frequently, neovim is practically unusable because of the constant stderr output (read once per keystroke--I'm not kidding). Things get bad enough that sometimes it wouldn't accept any of my input unless I exit insert mode.

Minimal init.vim

call plug#begin('~/.config/nvim/vimplug')
Plug 'rust-lang/rust.vim'
Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
Plug 'racer-rust/vim-racer'
call plug#end()

let g:deoplete#enable_at_startup = 0
augroup enable_deoplete
  autocmd!
  autocmd InsertEnter * call deoplete#enable() | autocmd! enable_deoplete
augroup END
 
if !exists('g:deoplete#omni#input_patterns')
  let g:deoplete#omni#input_patterns = {}
endif
let g:racer_cmd = $HOME . "/.cargo/bin/racer"
let g:racer_insert_paren = 0

Steps to reproduce

Here is a MWE to crash racer: https://github.com/macthecadillac/mwe/blob/master/src/lib.rs

Proceed to the bottom of the file, start and new line, and type impl_vec_eq_test!(f64: abs);. Racer should crash and make deoplete print a bunch of stderr junk once you get to "6" and should continue doing so for every letter you type until you get to "a", at which point it will block you from inserting more text unless you type space or exit insert mode.

I seem to have a weird cross interaction with vim-racer and neocomplete.

If you look at the following gif, you see what happen when I type .unwrap(). As you can see something is "eating" some of the letters. If I disable either vim-racer or neocomplete this doesn't happen. The letters that get eaten are not always the same, at another time I got .uwrp() as result.

Both plugins are on default settings as per their READMEs.

I don't know what is causing this, so I can't really offer any debug information upfront. Please just ask for what you need.

Hi.

I installed racer and this plugin, and configure them.
I can launch racer using /Users/antonin/.cargo/bin/racer, and it works!
But, when I try gd in a simple line like use std::, Vim returns :

No racer executable found in $PATH ...
:/Users/antonin/.cargo/bin/racer
:/Users/antonin/.cargo/bin...

And that's weird, because the racer executable is in the PATH environment :-/

Anyone here has a solution to test please?

I'm using a rust crate mirror links: mirrors.ustc.edu.cn and racer with vim YCM when I update dependents library, the third party crate source code is just download into the .cargo/registry/src/mirrors.ustc.edu.cn-XXXX/ path. but I found that, racer does not catch the right define of the crate code. just show Errors: "RuntimeError: Can't jump to definition." how could I resolve this problem. any help will be appreciate, thanks.

If you split a chain of invocations into multiple lines (according to style guidelines. This is also what rustfmt does) the completion won't work

use std::io;

fn main() {
    println!("Guess the number!");

    let mut guess = String::new();
    io::stdin()
        .r // here, the completion won't work 
    println!("You guessed {}", guess);
}

The completion popup does not show on its own, but also when you press C-xC-o

If I have

    let mut file = try!(File::open(file_path).map_err(|e| e.to_string()));
    let mut contents = String::new();

Then contents.<C-x C-o> gives a good list of completion options, all appropriate for String, showing that vim-racer is indeed working properly. However, file.<C-x C-o> doesn't find anything: Pattern not found. Things like read_to_string, which are properly defined for File, can successfully be used, and the program successfully compiles, however.