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sail-mode.el
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;;; sail-mode.el --- Major mode for editing .sail files -*- lexical-binding: t; -*-
;; Copyright (C) 2013-2018 The Sail Authors
;;
;; Author: The Sail Authors
;; URL: http://github.com/rems-project/sail
;; Package-Requires: ((emacs "25"))
;; Version: 0.0.1
;; Keywords: language
;; This file is not part of GNU Emacs.
;;; License:
;; 2-Clause BSD License (See LICENSE file in Sail repository)
;;; Commentary:
;; This mode is only compatible with new, recent of the new Sail on the "sail2" branch.
;;; Code:
(require 'easymenu)
(defvar sail-mode-hook nil)
(defvar sail-project-mode-hook nil)
(add-to-list 'auto-mode-alist '("\\.sail\\'" . sail-mode))
(add-to-list 'auto-mode-alist '("\\.sail_project\\'" . sail-project-mode))
(defconst sail-keywords
'("val" "outcome" "function" "type" "struct" "union" "enum" "let" "var" "if" "then" "by"
"else" "match" "in" "return" "register" "ref" "forall" "operator" "effect"
"overload" "cast" "sizeof" "constant" "constraint" "default" "assert" "newtype" "from"
"pure" "monadic" "infixl" "infixr" "infix" "scattered" "end" "try" "catch" "and" "to"
"throw" "clause" "as" "repeat" "until" "while" "do" "foreach" "bitfield"
"mapping" "where" "with" "implicit" "instantiation" "impl" "forwards" "backwards"))
(defconst sail-project-keywords
'("after" "before" "directory" "else" "file" "files" "if" "default" "module" "optional" "requires" "then" "variable"))
(defconst sail-kinds
'("Int" "Type" "Order" "Bool" "inc" "dec"
"barr" "depend" "rreg" "wreg" "rmem" "rmemt" "wmv" "wmvt" "eamem" "wmem"
"exmem" "undef" "unspec" "nondet" "escape" "configuration"))
(defconst sail-types
'("vector" "bitvector" "int" "nat" "atom" "range" "unit" "bit" "real" "list" "bool" "string" "string_literal" "bits" "option" "result"))
(defconst sail-special
'("_prove" "_not_prove" "create" "kill" "convert" "undefined"
"$define" "$include" "$ifdef" "$ifndef" "$iftarget" "$else" "$endif" "$option" "$optimize" "$non_exec"
"$latex" "$property" "$counterexample" "$suppress_warnings" "$assert" "$sail_internal" "$target_set"))
(defconst sail-font-lock-keywords
`(("$\\[[a-zA-Z_]+[^]]*\\]" . font-lock-preprocessor-face)
(,(regexp-opt sail-keywords 'symbols) . font-lock-keyword-face)
(,(regexp-opt sail-kinds 'symbols) . font-lock-builtin-face)
(,(regexp-opt sail-types 'symbols) . font-lock-type-face)
(,(regexp-opt sail-special 'symbols) . font-lock-preprocessor-face)
("~" . font-lock-negation-char-face)
("\\(::\\)<" 1 font-lock-keyword-face)
("@" . font-lock-preprocessor-face)
("<->" . font-lock-negation-char-face)
("\'[a-zA-Z0-9_]+" . font-lock-variable-name-face)
("\\([a-zA-Z0-9_]+\\)(" 1 font-lock-function-name-face)
("function \\([a-zA-Z0-9_]+\\)" 1 font-lock-function-name-face)
("impl \\([a-zA-Z0-9_]+\\)" 1 font-lock-function-name-face)
("event \\([a-zA-Z0-9_]+\\)" 1 font-lock-function-name-face)
("val \\([a-zA-Z0-9_]+\\)" 1 font-lock-function-name-face)
("$target_set \\([a-zA-Z0-9_]+\\)" 1 font-lock-keyword-face)
("$include \\(<.+>\\)" 1 font-lock-string-face)
("$include \\(\".+\"\\)" 1 font-lock-string-face)
("\\_<\\([0-9]+\\|0b[0-9_]+\\|0x[0-9a-fA-F_]+\\|true\\|false\\|bitone\\|bitzero\\)\\_>\\|()" . font-lock-constant-face)))
(defconst sail-project-font-lock-keywords
`((,(regexp-opt sail-project-keywords 'symbols) . font-lock-keyword-face)
("\\([a-zA-Z0-9_]+\\)[[:space:]]*{" 1 font-lock-function-name-face)
("\\.\\." . font-lock-string-face)
("$[a-zA-Z0-9]+" . font-lock-preprocessor-face)
("variable \\([a-zA-Z0-9_]+\\)" 1 font-lock-preprocessor-face)
("[a-zA-Z0-9_]+\\.sail" . font-lock-string-face)))
(defconst sail-mode-syntax-table
(let ((st (make-syntax-table)))
(modify-syntax-entry ?> "." st)
(modify-syntax-entry ?_ "w" st)
(modify-syntax-entry ?' "w" st)
(modify-syntax-entry ?* ". 23" st)
(modify-syntax-entry ?/ ". 124b" st)
(modify-syntax-entry ?\n "> b" st)
st)
"Syntax table for Sail mode")
(defun sail-mode ()
"Major mode for editing Sail Language files"
(interactive)
(kill-all-local-variables)
(set-syntax-table sail-mode-syntax-table)
(use-local-map sail-mode-map)
(sail-build-menu)
(setq font-lock-defaults '(sail-font-lock-keywords))
(setq comment-start-skip "\\(//+\\|/\\*+\\)\\s *")
(setq comment-start "/*")
(setq comment-end "*/")
(setq major-mode 'sail-mode)
(setq mode-name "Sail")
(add-hook 'sail-mode-hook
(lambda () (add-hook 'after-save-hook 'sail-load nil 'local)))
(run-hooks 'sail-mode-hook))
(defun sail-project-mode ()
"Major mode for editing Sail Language files"
(interactive)
(kill-all-local-variables)
(set-syntax-table sail-mode-syntax-table)
(use-local-map sail-mode-map)
(setq font-lock-defaults '(sail-project-font-lock-keywords))
(setq comment-start-skip "\\(//+\\|/\\*+\\)\\s *")
(setq comment-start "/*")
(setq comment-end "*/")
(setq major-mode 'sail-project-mode)
(setq mode-name "Sail project")
(run-hooks 'sail-project-mode-hook))
(defvar sail-process nil)
(defun sail-filter (proc string)
(when (buffer-live-p (process-buffer proc))
(with-current-buffer (process-buffer proc)
(let ((moving (= (point) (process-mark proc))))
(save-excursion
;; Insert the text, advancing the process marker.
(goto-char (process-mark proc))
(insert string)
(set-marker (process-mark proc) (point)))
(if moving (goto-char (process-mark proc)))))
(eval (car (read-from-string string)))))
(defun sail-start ()
"start Sail interactive mode"
(interactive)
(setq sail-process (start-process "sail" "Sail" "sail" "-i" "-emacs" "-no_warn"))
(set-process-filter sail-process 'sail-filter))
(defun sail-quit ()
"quit Sail interactive mode"
(interactive)
(when sail-process
(process-send-string sail-process ":quit\n")
(setq sail-process nil)))
(defun sail-type-at-cursor ()
"get type at cursor"
(interactive)
(when sail-process
(let ((loc (number-to-string (point))))
(process-send-string sail-process (mapconcat 'identity `(":typeat " ,buffer-file-name " " ,loc "\n") "")))))
(defun sail-highlight-region (begin end text)
(progn
(remove-overlays)
(let ((overlay (make-overlay begin end)))
(overlay-put overlay 'face 'bold)
(overlay-put overlay 'help-echo text)
(message text)
(setq mark-active nil))))
(defun sail-error-region (begin end text)
(progn
(let ((overlay (make-overlay begin end)))
(overlay-put overlay 'face 'error)
(overlay-put overlay 'help-echo text)
(setq mark-active nil))))
(defvar sail-error-position nil)
(defvar sail-error-text nil)
(defun sail-error (l1 c1 l2 c2 text)
(let ((begin (save-excursion
(goto-line l1)
(forward-char c1)
(point)))
(end (save-excursion
(goto-line l2)
(forward-char c2)
(point))))
(setq sail-error-text text)
(setq sail-error-position begin)
(sail-error-region begin end text)
(message text)))
(defun sail-goto-error ()
"Go to the next Sail error"
(interactive)
(if sail-error-position
(progn
(message sail-error-text)
(goto-char sail-error-position))
(message "No errors")))
(defun sail-load ()
"load a Sail file"
(interactive)
(if (null sail-process)
(error "No sail process (call sail-start)")
(progn
(remove-overlays)
(setq sail-error-position nil)
(setq sail-error-text nil)
(process-send-string sail-process ":unload\n")
(process-send-string sail-process (mapconcat 'identity `(":load " ,buffer-file-name "\n") "")))))
(defvar sail-mode-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "C-c C-s") 'sail-start)
(define-key map (kbd "C-c C-l") 'sail-load)
(define-key map (kbd "C-c C-q") 'sail-quit)
(define-key map (kbd "C-c C-x") 'sail-goto-error)
(define-key map (kbd "C-c C-c") 'sail-type-at-cursor)
map))
(defun sail-build-menu ()
(easy-menu-define
sail-mode-menu (list sail-mode-map)
"Sail Mode Menu."
'("Sail"
["Start interactive" sail-start t]
["Quit interactive" sail-quit t]
["Check buffer" sail-load t]
["Goto next error" sail-goto-error t]
["Type at cursor" sail-type-at-cursor t]))
(easy-menu-add sail-mode-menu))
(provide 'sail-mode)
;;; sail-mode.el ends here