tvl-depot/emacs/.emacs.d/wpc/wpc-rust.el

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;;; wpc-rust.el --- Support Rust language -*- lexical-binding: t -*-
;; Author: William Carroll <wpcarro@gmail.com>
;; Version: 0.0.1
;; Package-Requires: ((emacs "24"))
;; Homepage: https://user.git.corp.google.com/wpcarro/briefcase
;;; Commentary:
;; Supports my Rust work.
;;
;; Dependencies:
;; - `rustup`
;; - `rustup component add rust-src`
;; - `rustup toolchain add nightly && cargo +nightly install racer`
;;; Code:
(use-package racer
:config
(setq rust-sysroot (->> "~/.cargo/bin/rustc --print sysroot"
shell-command-to-string
s-trim-right))
(setq racer-rust-src-path (f-join rust-sysroot "lib/rustlib/src/rust/src"))
(add-hook 'racer-mode-hook #'eldoc-mode))
(use-package rust-mode
:config
(add-hook 'rust-mode-hook #'racer-mode)
(add-hook-before-save 'rust-mode-hook #'rust-format-buffer)
(define-key rust-mode-map
(kbd "TAB")
#'company-indent-or-complete-common)
(define-key rust-mode-map
(kbd "M-d")
#'racer-describe))
(provide 'wpc-rust)
;;; wpc-rust.el ends here