Rust completion for Neovim (Deoplete) via Racer
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README.md

deoplete-rust Gitter

Neovim/Deoplete auto-completion source for Rust via Racer.

Auto-completion: Screenshot auto-completion

Documentation: Screenshot documentation

Requirements

Install Racer

with cargo

cargo install racer

from source

git clone https://github.com/phildawes/racer.git; cd racer
cargo build --release

Copy binary to ./target/release/racer to a location of your choice. (e.g. to /usr/local/bin)

Get Rust source code

mkdir -p choose/a/path
git clone --depth=1 https://github.com/rust-lang/rust.git

Install Deoplete

For details see the installation guide

Installation

with vim-plug

Plug 'sebastianmarkow/deoplete-rust'

with Vundle

Plugin 'sebastianmarkow/deoplete-rust'

with NeoBundle

NeoBundle 'sebastianmarkow/deoplete-rust'

with Pathogen

git clone --depth=1 https://github.com/sebastianmarkow/deoplete-rust.git path/to/vim/bundle/deoplete-rust

Configuration (init.vim)

Set fully qualified path to racer binary. If it is in your PATH already use which racer. (required)

let g:deoplete#sources#rust#racer_binary='/path/to/racer'

Set Rust source code path (when cloning from Github usually ending on /src). (required)

let g:deoplete#sources#rust#rust_source_path='/path/to/rust/src'

Show duplicate matches.

let g:deoplete#sources#rust#show_duplicates=1

To disable default key mappings (gd & K) add the following

let g:deoplete#sources#rust#disable_keymap=1

Set max height of documentation split.

let g:deoplete#sources#rust#documentation_max_height=20

Usage

Default key mappings

These are the default key mappings

nmap <buffer> gd <plug>DeopleteRustGoToDefinitionDefault
nmap <buffer> K  <plug>DeopleteRustShowDocumentation

Additional methods to bind

Method Action
DeopleteRustGoToDefinitionSplit Open definition in horizontal split
DeopleteRustGoToDefinitionVSplit Open definition in vertical split
DeopleteRustGoToDefinitionTab Open definition in new tab

gd Go to definition

Jump to definition of the current element under the cursor.

K Show documentation

Show brief description of the current element under the cursor. To close press either q, cr or esc.

Show help

You don't have to remember it all. Run :help deoplete-rust.

License

deoplete-rust is licensed under MIT License. For additional information, see LICENSE file.