c7254e7bdc
+ enable lexical-scope everywhere (lexical-binding = t): ~5-10% faster startup; ~5-20% general boost + reduce consing, function calls & garbage collection by preferring cl-loop & dolist over lambda closures (for mapc[ar], add-hook, and various cl-lib filter/map/reduce functions) -- where possible + prefer functions with dedicated opcodes, like assq (see byte-defop's in bytecomp.el for more) + prefer pcase & cond (faster) over cl-case + general refactor for code readability + ensure naming & style conventions are adhered to + appease byte-compiler by marking unused variables with underscore + defer minor mode activation to after-init, emacs-startup or window-setup hooks; a customization opportunity for users + ensures custom functionality won't interfere with startup.
40 lines
1.1 KiB
EmacsLisp
40 lines
1.1 KiB
EmacsLisp
;;; lang/rust/config.el -*- lexical-binding: t; -*-
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(defvar +rust-ext-dir (concat doom-etc-dir "rust/")
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"TODO")
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(def-package! rust-mode
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:mode "\\.rs$"
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:init
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(add-hook 'rust-mode-hook #'flycheck-mode)
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:config
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(set! :build 'run-cargo '(rust-mode toml-mode) #'+rust/run-cargo
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:when #'+rust-cargo-project-p))
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(def-package! racer
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:after rust-mode
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:preface
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:init
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(add-hook! 'rust-mode-hook #'(racer-mode eldoc-mode flycheck-rust-setup))
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:config
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(setq racer-cmd (expand-file-name "racer/target/release/racer" +rust-ext-dir)
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racer-rust-src-path (expand-file-name "rust/src/" +rust-ext-dir))
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(unless (file-exists-p racer-cmd)
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(warn "rust-mode: racer binary can't be found; auto-completion is disabled"))
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;; TODO Unit test keybinds
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(map! :map rust-mode-map :m "gd" #'racer-find-definition))
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(def-package! company-racer
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:when (featurep! :completion company)
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:after racer
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:config (set! :company-backend 'rust-mode '(company-racer)))
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(def-package! flycheck-rust
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:when (featurep! :feature syntax-checker)
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:after rust-mode)
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