lisp/init-rust.el


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(defun rust-mode-buffer-local-variables ()
  ;; eglot passes tab-width as tab size when formatting code, when using rustfmt
  ;; this should be 4
  (setq-local tab-width 4))

(use-package rust-mode
  :ensure t
  :init
  (when (executable-find "rustfmt")
    (setq rust-format-on-save t))

  :hook (rust-mode . rust-mode-buffer-local-variables)

  :bind (:map rust-mode-map
              ;; C-c f runs rustfmt on the buffer
              ("C-c f" . rust-format-buffer)
              ("C-c l" . rust-clippy)
              ("C-c t" . rust-test)
              ("C-c R" . rust-run)))

(provide 'init-rust)