101 lines
3.5 KiB
EmacsLisp
101 lines
3.5 KiB
EmacsLisp
;;; lang/rust/config.el -*- lexical-binding: t; -*-
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(after! projectile
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(add-to-list 'projectile-project-root-files "Cargo.toml"))
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;;
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;;; Packages
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(use-package! rust-mode
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:defer t
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:config
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(setq rust-indent-method-chain t)
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(add-hook 'rust-mode-hook #'rainbow-delimiters-mode)
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;; This is necessary because both plugins are fighting for supremacy in
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;; `auto-mode-alist', so rustic-mode *must* load second. It only needs to
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;; happen once.
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;;
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;; rust-mode is still required for `racer'.
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(add-hook! 'rust-mode-hook
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(defun +rust-init-h ()
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"Switch to `rustic-mode', if it's available."
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(when (require 'rustic nil t)
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(rustic-mode))))
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(set-docsets! '(rust-mode rustic-mode) "Rust")
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(when (featurep! +lsp)
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(add-hook 'rust-mode-local-vars-hook #'lsp!)))
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(use-package! racer
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:unless (featurep! +lsp)
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:hook ((rust-mode rustic-mode) . racer-mode)
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:config
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(set-lookup-handlers! 'rust-mode
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:definition '(racer-find-definition :async t)
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:documentation '+rust-racer-lookup-documentation))
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(use-package! rustic
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:when EMACS26+
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:after rust-mode
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:preface
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(setq rustic-rls-pkg (if (featurep! +lsp) 'lsp-mode))
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:config
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(setq rustic-indent-method-chain t
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rustic-flycheck-setup-mode-line-p nil
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;; use :editor format instead
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rustic-format-on-save nil
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;; REVIEW `rust-ordinary-lt-gt-p' is terribly expensive in large rust
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;; buffers, so we disable it, but only for evil users, because it
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;; affects `forward-sexp' and its ilk. See
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;; https://github.com/rust-lang/rust-mode/issues/288.
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rustic-match-angle-brackets (not (featurep! :editor evil)))
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(add-hook 'rustic-mode-hook #'rainbow-delimiters-mode)
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(defadvice! +rust--dont-install-packages-p (orig-fn &rest args)
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:around #'rustic-setup-rls
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(cl-letf (;; `rustic-setup-rls' uses `package-installed-p' to determine if
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;; lsp-mode/elgot are available. This breaks because Doom doesn't
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;; use package.el to begin with (and lazy loads it).
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((symbol-function #'package-installed-p)
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(lambda (pkg)
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(require pkg nil t)))
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;; If lsp/elgot isn't available, it attempts to install lsp-mode
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;; via package.el. Doom manages its own dependencies so we disable
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;; that behavior.
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((symbol-function #'rustic-install-rls-client-p)
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(lambda (&rest _)
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(message "No RLS server running"))))
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(apply orig-fn args))))
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;;
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;;; Tools
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(use-package! cargo
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:after rust-mode
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:config
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(defvar +rust-keymap
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(if (boundp 'rustic-mode-map)
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rustic-mode-map
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rust-mode-map))
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(map! :map +rust-keymap
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:localleader
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(:prefix ("b" . "build")
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:desc "cargo add" "a" #'cargo-process-add
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:desc "cargo build" "b" #'cargo-process-build
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:desc "cargo bench" "B" #'cargo-process-bench
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:desc "cargo check" "c" #'cargo-process-check
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:desc "cargo clippy" "C" #'cargo-process-clippy
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:desc "cargo doc" "d" #'cargo-process-doc
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:desc "cargo run" "r" #'cargo-process-run
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:desc "cargo search" "s" #'cargo-process-search
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:desc "cargo update" "u" #'cargo-process-update)
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(:prefix ("t" . "cargo test")
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:desc "all" "a" #'cargo-process-test
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:desc "current file" "f" #'cargo-process-current-file-tests
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:desc "current test" "t" #'cargo-process-current-test)))
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