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spacemacs/layers/+lang/rust/funcs.el
Ivan Yonchovski c3f13d0391 Removed company-lsp in favour of company-capf
- Also removed some cquery artifacts which accidentally ended up in this PR
instead of in https://github.com/syl20bnr/spacemacs/pull/13446
2020-04-04 08:24:44 +02:00

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;;; funcs.el --- rust Layer functions File for Spacemacs
;;
;; Copyright (c) 2012-2018 Sylvain Benner & Contributors
;;
;; Author: NJBS <DoNotTrackMeUsingThis@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(defun spacemacs//rust-backend ()
"Returns selected backend."
(if rust-backend
rust-backend
(cond
((configuration-layer/layer-used-p 'lsp) 'lsp)
(t 'racer))))
(defun spacemacs//rust-setup-backend ()
"Conditionally setup rust backend."
(pcase (spacemacs//rust-backend)
(`racer (spacemacs//rust-setup-racer))
(`lsp (spacemacs//rust-setup-lsp))))
(defun spacemacs//rust-setup-company ()
"Conditionally setup company based on backend."
(pcase (spacemacs//rust-backend)
(`racer (spacemacs//rust-setup-racer-company))))
(defun spacemacs//rust-setup-dap ()
"Conditionally setup elixir DAP integration."
;; currently DAP is only available using LSP
(pcase (spacemacs//rust-backend)
(`lsp (spacemacs//rust-setup-lsp-dap))))
;; lsp
(defun spacemacs//lsp-layer-not-installed-message ()
(message (concat "`lsp' layer is not installed, "
"please add `lsp' layer to your dotfile.")))
(defun spacemacs//rust-setup-lsp ()
"Setup lsp backend"
(if (configuration-layer/layer-used-p 'lsp)
(progn
(lsp)
(spacemacs/declare-prefix-for-mode 'rust-mode "ms" "switch")
(spacemacs/set-leader-keys-for-major-mode 'rust-mode
"ss" 'lsp-rust-switch-server))
(spacemacs//lsp-layer-not-installed-message)))
(defun spacemacs//rust-setup-lsp-dap ()
"Setup DAP integration."
(require 'dap-gdb-lldb))
;; racer
(defun spacemacs//rust-setup-racer ()
"Setup racer backend"
(progn
(racer-mode)))
(defun spacemacs//rust-setup-racer-company ()
"Setup racer auto-completion."
(spacemacs|add-company-backends
:backends company-capf
:modes rust-mode
:variables company-tooltip-align-annotations t))
(defun spacemacs/racer-describe ()
"Show a *Racer Help* buffer for the function or type at point.
If `help-window-select' is non-nil, also select the help window."
(interactive)
(let ((window (racer-describe)))
(when help-window-select
(select-window window))))
;; Misc
(defvar spacemacs//rust-quick-run-tmp-file nil
"Stores filename for the rust-quick-run function")
(defun spacemacs//rust-quick-run-generate-tmp-file-name (input-file-name)
(concat temporary-file-directory
(file-name-nondirectory (buffer-file-name))
"-"
(md5 (buffer-file-name))))
(defun spacemacs//rust-quick-run-compilation-finish-function (buffer status)
(setq compilation-finish-functions
(delete 'spacemacs//rust-quick-run-compilation-finish-function
compilation-finish-functions))
(when (string-match "finished" status)
(newline)
(shell-command
(shell-quote-argument spacemacs//rust-quick-run-tmp-file) t)))
(defun spacemacs/rust-quick-run ()
"Quickly run a Rust file using rustc.
Meant for a quick-prototype flow only - use `spacemacs/open-junk-file' to open a
junk Rust file, type in some code and quickly run it. If you want to use
third-party crates, create a new project using `cargo-process-new' and run using
`cargo-process-run'."
(interactive)
(setq spacemacs//rust-quick-run-tmp-file
(spacemacs//rust-quick-run-generate-tmp-file-name(buffer-file-name)))
(add-to-list 'compilation-finish-functions
'spacemacs//rust-quick-run-compilation-finish-function)
(compile
(format "rustc -o %s %s"
(shell-quote-argument spacemacs//rust-quick-run-tmp-file)
(shell-quote-argument buffer-file-name))))