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spacemacs/layers/+lang/java/funcs.el

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;;; packages.el --- Java functions File for Spacemacs
;;
;; Copyright (c) 2012-2017 Sylvain Benner & Contributors
;;
;; Author: Lukasz Klich <klich.lukasz@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(defun spacemacs//java-define-command-prefixes ()
"Define command prefixes for java-mode."
(setq java/key-binding-prefixes '(("me" . "errors")
("md" . "eclimd")
("mf" . "find")
("mg" . "goto")
("mr" . "refactor")
("mh" . "documentation")
("mm" . "maven")
("ma" . "ant")
("mp" . "project")
("mt" . "test")))
(mapc (lambda(x) (spacemacs/declare-prefix-for-mode
'java-mode (car x) (cdr x)))
java/key-binding-prefixes))
(defun spacemacs//java-setup-backend ()
"Conditionally setup java backend."
(pcase java-backend
(`meghanada (spacemacs//java-setup-meghanada))
(`eclim (spacemacs//java-setup-eclim))
(`ensime (spacemacs//java-setup-ensime))))
(defun spacemacs//java-setup-company ()
"Conditionally setup company based on backend."
(pcase java-backend
(`meghanada (spacemacs//java-setup-meghanada-company))
(`eclim (spacemacs//java-setup-eclim-company))
(`ensime (spacemacs//java-setup-ensime-company))))
(defun spacemacs//java-setup-flycheck ()
"Conditionally setup flycheck based on backend."
(pcase java-backend
(`meghanada (spacemacs//java-setup-meghanada-flycheck))
(`eclim (spacemacs//java-setup-eclim-flycheck))
(`ensime (spacemacs//java-setup-ensime-flycheck))))
(defun spacemacs//java-setup-flyspell ()
"Conditionally setup flyspell based on backend."
(pcase java-backend
(`ensime (spacemacs//java-setup-ensime-flyspell))))
(defun spacemacs//java-setup-eldoc ()
"Conditionally setup eldoc based on backend."
(pcase java-backend
;; meghanada setup eldoc on its own
(`ensime (spacemacs//java-setup-ensime-eldoc))))
;; ensime
(autoload 'ensime-config-find-file "ensime-config")
(autoload 'ensime-config-find "ensime-config")
(autoload 'projectile-project-p "projectile")
(defun spacemacs//java-setup-ensime ()
"Setup ENSIME."
;; jump handler
(add-to-list 'spacemacs-jump-handlers 'ensime-edit-definition)
;; ensure the file exists before starting `ensime-mode'
(cond
((and (buffer-file-name) (file-exists-p (buffer-file-name)))
(ensime-mode))
((buffer-file-name)
(add-hook 'after-save-hook 'ensime-mode nil t))))
(defun spacemacs//java-setup-ensime-company ()
"Setup ENSIME auto-completion.")
(defun spacemacs//java-setup-ensime-flycheck ()
"Setup ENSIME syntax checking.")
(defun spacemacs//java-setup-ensime-flyspell ()
"Setup ENSIME spell checking."
(flyspell-mode)
(setq-local flyspell-generic-check-word-predicate
'spacemacs//ensime-flyspell-verify))
(defun spacemacs//java-setup-ensime-eldoc ()
"Setup ENSIME eldoc."
(setq-local eldoc-documentation-function
(lambda ()
(when (ensime-connected-p)
(ensime-print-type-at-point))))
(eldoc-mode))
(defun spacemacs//ensime-maybe-start ()
(when (buffer-file-name)
(let ((ensime-buffer (spacemacs//ensime-buffer-for-file (buffer-file-name)))
(file (ensime-config-find-file (buffer-file-name)))
(is-source-file (s-matches? (rx (or "/src/" "/test/"))
(buffer-file-name))))
(when (and is-source-file (null ensime-buffer))
(noflet ((ensime-config-find (&rest _) file))
(save-window-excursion
(ensime)))))))
(defun spacemacs//ensime-buffer-for-file (file)
"Find the Ensime server buffer corresponding to FILE."
(let ((default-directory (file-name-directory file)))
(-when-let (project-name (projectile-project-p))
(--first (-when-let (bufname (buffer-name it))
(and (s-contains? "inferior-ensime-server" bufname)
(s-contains? (file-name-nondirectory project-name)
bufname)))
(buffer-list)))))
(defun spacemacs//ensime-flyspell-verify ()
"Prevent common flyspell false positives in scala-mode."
(and (flyspell-generic-progmode-verify)
(not (s-matches? (rx bol (* space) "package") (current-line)))))
;; interactive functions
(defun spacemacs/ensime-gen-and-restart()
"Regenerate `.ensime' file and restart the ensime server."
(interactive)
(progn
(sbt-command ";ensimeConfig;ensimeConfigProject")
(ensime-shutdown)
(ensime)))
(defun spacemacs/ensime-inf-eval-buffer-switch ()
"Send buffer content to shell and switch to it in insert mode."
(interactive)
(ensime-inf-eval-buffer)
(ensime-inf-switch)
(evil-insert-state))
(defun spacemacs/ensime-inf-eval-region-switch (start end)
"Send region content to shell and switch to it in insert mode."
(interactive "r")
(ensime-inf-switch)
(ensime-inf-eval-region start end)
(evil-insert-state))
(defun spacemacs/ensime-refactor-accept ()
(interactive)
(funcall continue-refactor)
(ensime-popup-buffer-quit-function))
(defun spacemacs/ensime-refactor-cancel ()
(interactive)
(funcall cancel-refactor)
(ensime-popup-buffer-quit-function))
(defun spacemacs/ensime-completing-dot ()
"Insert a period and show company completions."
(interactive "*")
(when (s-matches? (rx (+ (not space)))
(buffer-substring (line-beginning-position) (point)))
(delete-horizontal-space t))
(company-abort)
(insert ".")
(company-complete))
(defun spacemacs/ensime-yank-type-at-point ()
"Yank to kill ring and print short type name at point to the minibuffer."
(interactive)
(ensime-type-at-point t nil))
(defun spacemacs/ensime-yank-type-at-point-full-name ()
"Yank to kill ring and print full type name at point to the minibuffer."
(interactive)
(ensime-type-at-point t t))
;; eclim
(defun spacemacs//java-setup-eclim ()
"Setup Eclim."
;; jump handler
(add-to-list 'spacemacs-jump-handlers '(eclim-java-find-declaration :async t))
;; enable eclim
(eclim-mode))
(defun spacemacs//java-setup-eclim-company ()
"Setup Eclim auto-completion."
(spacemacs|add-company-backends
:backends company-emacs-eclim
:modes eclim-mode
:hooks nil)
;; call manualy generated functions by the macro
(spacemacs//init-company-eclim-mode)
(set (make-variable-buffer-local 'company-idle-delay) 0.5)
(set (make-variable-buffer-local 'company-minimum-prefix-length) 1)
(company-mode))
(defun spacemacs//java-setup-eclim-flycheck ()
"Setup Eclim syntax checking."
(flycheck-eclim-setup)
;; disable auto check, use `SPC e e'
(setq eclim-autoupdate-problems nil)
(set (make-local-variable 'flycheck-check-syntax-automatically) nil)
(flycheck-mode))
(defun spacemacs/java-eclim-completing-dot ()
"Insert a period and show company completions."
(interactive "*")
(spacemacs//java-delete-horizontal-space)
(insert ".")
(company-emacs-eclim 'interactive))
(defun spacemacs/java-eclim-completing-double-colon ()
"Insert double colon and show company completions."
(interactive "*")
(spacemacs//java-delete-horizontal-space)
(insert ":")
(let ((curr (point)))
(when (s-matches? (buffer-substring (- curr 2) (- curr 1)) ":")
(company-emacs-eclim 'interactive))))
;; meghanada
(defun spacemacs//java-setup-meghanada ()
"Setup Meghanada."
(require 'meghanada)
;; jump handler
(add-to-list 'spacemacs-jump-handlers
'(meghanada-jump-declaration
:async spacemacs//java-meghanada-server-livep))
;; auto-install meghanada server
(let ((dest-jar (meghanada--locate-server-jar)))
(unless dest-jar
(meghanada-install-server)))
;; enable meghanada
(meghanada-mode))
(defun spacemacs//java-setup-meghanada-company ()
"Setup Meghanada auto-completion."
(meghanada-company-enable))
(defun spacemacs//java-setup-meghanada-flycheck ()
"Setup Meghanada syntax checking."
(spacemacs/enable-flycheck 'java-mode)
(require 'flycheck-meghanada)
(add-to-list 'flycheck-checkers 'meghanada)
(flycheck-mode))
(defun spacemacs//java-meghanada-server-livep ()
"Return non-nil if the Meghanada server is up."
(and meghanada--client-process (process-live-p meghanada--client-process)))
;; Maven
(defun spacemacs/java-maven-test ()
(interactive)
(eclim-maven-run "test"))
(defun spacemacs/java-maven-clean-install ()
(interactive)
(eclim-maven-run "clean install"))
(defun spacemacs/java-maven-install ()
(interactive)
(eclim-maven-run "install"))
;; Misc
(defun spacemacs//java-delete-horizontal-space ()
(when (s-matches? (rx (+ (not space)))
(buffer-substring (line-beginning-position) (point)))
(delete-horizontal-space t)))