From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Pranshu Sharma via "Emacs development discussions." Newsgroups: gmane.emacs.devel Subject: Merge haskell-ts-mode in upstream Date: Tue, 24 Dec 2024 11:46:23 +1000 Message-ID: <87cyhh7t00.fsf@bauherren.ovh> Reply-To: Pranshu Sharma Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="33596"; mail-complaints-to="usenet@ciao.gmane.io" To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Dec 24 04:21:46 2024 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tPvUQ-0008Zh-0T for ged-emacs-devel@m.gmane-mx.org; Tue, 24 Dec 2024 04:21:46 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tPvTU-0003tp-9K; Mon, 23 Dec 2024 22:20:48 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tPu0J-0008N2-HL for emacs-devel@gnu.org; Mon, 23 Dec 2024 20:46:35 -0500 Original-Received: from mail.bauherren.ovh ([45.32.179.127]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tPu0H-0003YL-7K for emacs-devel@gnu.org; Mon, 23 Dec 2024 20:46:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=bauherren.ovh; s=mail; t=1735004791; bh=hCz9P/R1ClE8KWyZJJJwBdnPjoXTEaG8XnJVRoECA1U=; h=From:To:Subject:Date:From; b=MX/wn43U/K9w6Ng5eFFuTdQZVLaQPeD8OqIKdui2BW/CEmVd3FCTSKznyr0j34Wlk Q6KLC9t+6thfblQPjPOmgky130JoF15llO8JWI72dpeq+FCWR3BJe8ctPHU8b17glS CoaCA6bQSi9JCXbiuDaCWL0TDrEifqMAnyQqN5e6AeJ5/wySH3I+E8rzDXfMymjykf swiijxdGEuapwUZtximn6ZuSQv8k3O4nOLzWLkLk1R0Kru/pk1m3qUXipZ5sjJq89z VkdmGaqmsu0Yy63T/sncmhRmxmrPUm0luCOTt8DdBrpMKybmY8SJGzDNff/HvNLvH/ oUBEQ/8PZv18w== Received-SPF: pass client-ip=45.32.179.127; envelope-from=pranshu@bauherren.ovh; helo=mail.bauherren.ovh X-Spam_score_int: 10 X-Spam_score: 1.0 X-Spam_bar: + X-Spam_report: (1.0 / 5.0 requ) BAYES_20=-0.001, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, FROM_FMBLA_NEWDOM28=0.799, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Mon, 23 Dec 2024 22:20:43 -0500 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:326947 Archived-At: --=-=-= Content-Type: text/plain Hello emacskin, Around Augest, I asked for this first, but I still had do deal with the FSF bureaucracy, but now that is done (and I have made a lot of changes to the mode), I think it's ready. I've attached a file. The repo is here: https://hg.bauherren.ovh/haskell-ts-mode/ , but I've attached the main file. --=-=-= Content-Type: application/emacs-lisp Content-Disposition: attachment; filename=haskell-ts-mode.el Content-Transfer-Encoding: quoted-printable Content-Description: haskell ts mode ;;; haskell-ts-mode.el --- A treesit based major mode for haskell -*- lexic= al-binding:t -*- ;; Copyright (C) 2024 Pranshu Sharma ;; Author: Pranshu Sharma ;; URL: https://codeberg.org/pranshu/haskell-ts-mode ;; Package-Requires: ((emacs "29.3")) ;; Version: 1 ;; Keywords: languages, haskell ;; This program is free software; you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation, either version 3 of the License, or ;; (at your option) any later version. ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with this program. If not, see . ;;; Commentary: ;; This is a major mode that uses treesitter to provide all the basic ;; major mode stuff, like indentation, font lock, etc... ;;; Code: (require 'comint) (require 'treesit) (declare-function treesit-parser-create "treesit.c") (declare-function treesit-node-start "treesit.c") (declare-function treesit-node-parent "treesit.c") (declare-function treesit-node-prev-sibling "treesit.c") (declare-function treesit-node-next-sibling "treesit.c") (declare-function treesit-node-end "treesit.c") (declare-function treesit-node-child "treesit.c") (declare-function treesit-node-type "treesit.c") (defgroup haskell-ts-mode nil "Group that contains haskell-ts-mode variables" :group 'langs) (defvar haskell-ts-font-lock-feature-list `((comment str pragma parens) (type definition function args) (match keyword) (otherwise signature type-sig))) (defcustom haskell-ts-use-indent t "Set to non-nil to use the indentation provided by haskell-ts-mode" :group 'haskell-ts-mode :type 'boolean) (defcustom haskell-ts-font-lock-level 4 "Level of font lock, 1 for minimum highlghting and 4 for maximum." :group 'haskell-ts-mode :type 'integer) (defvar haskell-ts-prettify-symbols-alist '(("\\" . "=CE=BB") ("/=3D" . "=E2=89=A0") ("->" . "=E2=86=92") ("=3D>" . "=E2=87=92") ("<-" . "=E2=86=90") ("<=3D" . "=E2=89=A5") (">=3D" . "=E2=89=A4"))) (defvar haskell-ts-font-lock (treesit-font-lock-rules :language 'haskell :feature 'keyword `(["module" "import" "data" "let" "where" "case" "type" "if" "then" "else" "of" "do" "in" "instance" "class"] @font-lock-keyword-face) :language 'haskell :feature 'otherwise :override t `(((match (guards guard: (boolean (variable) @font-lock-keyword-face))) (:match "otherwise" @font-lock-keyword-face))) :language 'haskell :feature 'type-sig "(signature (binding_list (variable) @font-lock-doc-markup-face)) (signature (variable) @font-lock-doc-markup-face)" :language 'haskell :feature 'args :override 'keep (concat "(function (infix left_operand: (_) @haskell-ts--fontify-arg))" "(function (infix right_operand: (_) @haskell-ts--fontify-arg))" "(generator . (_) @haskell-ts--fontify-arg)" "(bind (as (variable) . (_) @haskell-ts--fontify-arg))" "(patterns) @haskell-ts--fontify-arg") :language 'haskell :feature 'type `((type) @font-lock-type-face (constructor) @font-lock-type-face) :language 'haskell :override t :feature 'signature `((signature (function) @haskell-ts--fontify-type) (context (function) @haskell-ts--fontify-type)) :language 'haskell :feature 'match `((match ("|" @font-lock-doc-face) ("=3D" @font-lock-doc-face)) (list_comprehension ("|" @font-lock-doc-face (qualifiers (generator "<-" @font-lock-doc-face)))) (match ("->" @font-lock-doc-face))) :language 'haskell :feature 'comment `(((comment) @font-lock-comment-face) ((haddock) @font-lock-doc-face)) :language 'haskell :feature 'pragma `((pragma) @font-lock-preprocessor-face (cpp) @font-lock-preprocessor-face) :language 'haskell :feature 'str :override t `((char) @font-lock-string-face (string) @font-lock-string-face (quasiquote (quoter) @font-lock-type-face) (quasiquote (quasiquote_body) @font-lock-preprocessor-face)) :language 'haskell :feature 'parens :override t `(["(" ")" "[" "]"] @font-lock-operator-face (infix operator: (_) @font-lock-operator-face)) :language 'haskell :feature 'function :override t `((function name: (variable) @font-lock-function-name-face) (function (infix (operator) @font-lock-function-name-face)) (declarations (type_synomym (name) @font-lock-function-name-face)) (bind (variable) @font-lock-function-name-face) (function (infix (infix_id (variable) @font-lock-function-name-face))) (bind (as (variable) @font-lock-function-name-face)))) "The treesitter font lock settings for haskell.") (defun haskell-ts--stand-alone-parent (_ parent bol) (save-excursion (goto-char (treesit-node-start parent)) (let ((type (treesit-node-type parent))) (if (and (not bol) (or (looking-back "^[ \t]*" (line-beginning-position)) (seq-some (lambda (kw)=20 (string=3D type kw)) '("when" "where" "do" "let" "local_binds" "function")))) (treesit-node-start parent) (haskell-ts--stand-alone-parent 1 (funcall (if bol 'treesit-node-parent 'identity) (treesit-node-parent parent)) nil))))) (defvar haskell-ts--ignore-types (regexp-opt '("comment" "cpp" "haddock")) "Node types that will be ignored by indentation.") (defvar haskell-ts-indent-rules (let* ((p-sib (lambda (node arg) (let* ((func (if arg 'treesit-node-prev-sibling 'treesit-node-next-sibling)) (n (funcall func node))) (while (and n (string-match haskell-ts--ignore-types (treesit-node-type n))) (setq n (funcall func n))) n))) (p-prev-sib (lambda (node _ _) (treesit-node-start (funcall p-sib node t)))) (p-n-prev (lambda (node) (funcall p-sib node t))) (parent-first-child (lambda (_ parent _) (treesit-node-start (treesit-node-child parent 0))))) `((haskell ((node-is "^cpp$") column-0 0) ((parent-is "^comment$") column-0 0) ((parent-is "^haddock$") column-0 0) ((parent-is "^imports$") column-0 0) ;; Infix ((n-p-gp nil "infix" "infix") (lambda (_ node _) (let ((first-inf nil)) (while (string=3D "infix" (treesit-node-type (setq node (treesit-node-parent node)))) (setq first-inf node)) (funcall ,parent-first-child nil first-inf nil))) 0) ((node-is "^infix$") ,parent-first-child 0) =20=20=20=20=20=20=20 ;; Lambda ((parent-is "^lambda\\(_case\\)?$") standalone-parent 2) ((parent-is "^class_declarations$") prev-sibling 0) ((node-is "^where$") parent 2) =20=20=20=20=20=20=20 ;; in ((node-is "^in$") parent 0) =20=20=20=20=20=20=20 ((parent-is "qualifiers") parent 0) =20=20=20=20=20=20=20 ;; list ((node-is "^]$") parent 0) ((parent-is "^list$") standalone-parent 2) =20=20=20=20=20=20=20 ;; If then else ((node-is "^then$") parent 2) ((node-is "^else$") parent 2) ((parent-is "^apply$") haskell-ts--stand-alone-parent 1) ((node-is "^quasiquote$") grand-parent 2) ((parent-is "^quasiquote_body$") (lambda (_ _ c) c) 0) ((lambda (node parent bol) (when-let ((n (treesit-node-prev-sibling node))) (while (string=3D "comment" (treesit-node-type n)) (setq n (treesit-node-prev-sibling n))) (string=3D "do" (treesit-node-type n)))) haskell-ts--stand-alone-parent 3) ((parent-is "^do$") ,p-prev-sib 0) ((parent-is "^alternatives$") ,p-prev-sib 0) ;; prev-adaptive-prefix is broken sometimes (no-node (lambda (_ _ _) (save-excursion (goto-char (line-beginning-position 0)) (back-to-indentation) (point))) 0) =20=20=20=20=20=20=20 ((parent-is "^data_constructors$") parent 0) ;; where ((lambda (node _ _) (let ((n (treesit-node-prev-sibling node))) (while (string=3D "comment" (treesit-node-type n)) (setq n (treesit-node-prev-sibling n))) (string=3D "where" (treesit-node-type n)))) =09 (lambda (_ b _) (+ 1 (treesit-node-start (treesit-node-prev-sibling b)))) 3) ((parent-is "local_binds\\|instance_declarations") ,p-prev-sib 0) =20=20=20=20=20=20=20 ;; Match ((lambda (node _ _) (and (string=3D "match" (treesit-node-type node)) (string-match (regexp-opt '("patterns" "variable")) (treesit-node-type (funcall ,p-n-prev node))))) standalone-parent 2) =20=20=20=20=20=20=20 ((node-is "match") ,p-prev-sib 0) ((parent-is "match") standalone-parent 2) =20=20=20=20=20=20=20 ((parent-is "^haskell$") column-0 0) ((parent-is "^declarations$") column-0 0) =20=20=20=20=20=20=20 ((parent-is "^record$") standalone-parent 2) ((parent-is "^exports$") (lambda (_ b _) (treesit-node-start (treesit-node-prev-sibling b))) 0) ((n-p-gp nil "signature" "foreign_import") grand-parent 3) ((parent-is "^case$") standalone-parent 4) ((node-is "^alternatives$") (lambda (_ b _) (treesit-node-start (treesit-node-child b 0))) 2) ((node-is "^comment$") ;; Indenting comments by priorites: ;; 1. next relevent sibling if exists ;; 2. previous relevent sibling if exists ;; 3. parent ;; (relevent means type not it haskell-ts--ignore-types) (lambda (node parent _) (if-let ((next-sib (funcall ,p-sib node nil))) (treesit-node-start next-sib) (if-let ((prev-sib (funcall ,p-prev-sib node nil nil))) prev-sib (treesit-node-start parent)))) 0) ;; Backup (catch-all parent 2))))) ;; Copied from haskell-tng-mode, changed a bit (defvar haskell-ts-mode-syntax-table (let ((table (make-syntax-table))) ;; The defaults are mostly fine (mapc (lambda (ls) (mapc (lambda (char) (modify-syntax-entry char (car ls) table)) (cdr ls))) '(("_" ?! ?_) ("w" ?') ;; Haskell has some goofy comment enders like C-q C-l (">" 13 10 12 11) ("_ 123" ?-) ("(}1nb" ?\{) ("){4nb" ?\}) ("<" ?#) (">" ?\n) ;; Special operaters ("." ?\, ?\; ?@) ("\"" ?\") ("$`" ?\`))) table)) (defmacro haskell-ts-imenu-name-function (check-func) `(lambda (node) (let ((nn (treesit-node-child node 0 node))) (if (funcall ,check-func node) (if (string=3D (treesit-node-type nn) "infix") (treesit-node-text (treesit-node-child nn 1)) (haskell-ts-defun-name node)) nil)))) (defun haskell-ts-indent-defun (pos) "Indent the current function." (interactive "d") (let ((node (treesit-node-at pos))) (while (not (string-match "^declarations$\\|haskell" (treesit-node-type (treesit-node-parent node)))) (setq node (treesit-node-parent node))) (indent-region (treesit-node-start node) (treesit-node-end node)))) (defvar haskell-ts-mode-map (define-keymap "C-c C-c" 'haskell-ts-compile-region-and-go "C-c C-r" 'haskell-ts-run-haskell "C-M-q" 'haskell-ts-indent-defun) "Map for haskell-ts-mode.") ;;;###autoload (define-derived-mode haskell-ts-mode prog-mode "haskell ts mode" "Major mode for Haskell files using tree-sitter." (unless (treesit-ready-p 'haskell) (error "Tree-sitter for Haskell is not available")) (treesit-parser-create 'haskell) (setq-local treesit-defun-type-regexp "\\(?:\\(?:function\\|struct\\)_def= inition\\)") ;; Indent (when haskell-ts-use-indent (setq-local treesit-simple-indent-rules haskell-ts-indent-rules) (setq-local indent-tabs-mode nil)) ;; Comment (setq-local comment-start "-- ") (setq-local comment-use-syntax t) (setq-local comment-start-skip "\\(?: \\|^\\)-+") ;; Electric (setq-local electric-pair-pairs '((?` . ?`) (?\( . ?\)) (?{ . ?}) (?\" . ?\") (?\[ . ?\]))) ;; Navigation (setq-local treesit-defun-name-function 'haskell-ts-defun-name) (setq-local treesit-defun-type-regexp ;; Since haskell is strict functional, any 2nd level ;; entity is defintion (cons ".+" (lambda (node) (and (not (string-match haskell-ts--ignore-types (treesit-node-type= node))) (string=3D "declarations" (treesit-node-type (treesit-node-parent nod= e))))))) (setq-local prettify-symbols-alist haskell-ts-prettify-symbols-alist) ;; Imenu (setq-local treesit-simple-imenu-settings `((nil haskell-ts-imenu-func-node-p nil ,(haskell-ts-imenu-name-function #'haskell-ts-imenu-func-node-p)) ("Signatures.." haskell-ts-imenu-sig-node-p nil ,(haskell-ts-imenu-name-function #'haskell-ts-imenu-sig-node-p)) ("Data..." haskell-ts-imenu-data-type-p nil (lambda (node) (treesit-node-text (treesit-node-child node 1)))))) ;; font-lock (setq-local treesit-font-lock-level haskell-ts-font-lock-level) (setq-local treesit-font-lock-settings haskell-ts-font-lock) (setq-local treesit-font-lock-feature-list haskell-ts-font-lock-feature-list) (treesit-major-mode-setup)) (defun haskell-ts--fontify-arg (node &optional _ _ _) (if (string=3D "variable" (treesit-node-type node)) (put-text-property (treesit-node-start node) (treesit-node-end node) 'face font-lock-variable-name-face) (mapc 'haskell-ts--fontify-arg (treesit-node-children node)))) (defun haskell-ts--fontify-type (node &optional _ _ _) (let ((last-child (treesit-node-child node -1))) (if (string=3D (treesit-node-type last-child) "function") (haskell-ts--fontify-type last-child) (put-text-property (treesit-node-start last-child) (treesit-node-end last-child) 'face font-lock-variable-name-face)))) (defun haskell-ts-imenu-node-p (regex node) (and (string-match-p regex (treesit-node-type node)) (string=3D (treesit-node-type (treesit-node-parent node)) "declarati= ons"))) (defun haskell-ts-imenu-func-node-p (node) (haskell-ts-imenu-node-p "function\\|bind" node)) (defun haskell-ts-imenu-sig-node-p (node) (haskell-ts-imenu-node-p "signature" node)) (defun haskell-ts-imenu-data-type-p (node) (haskell-ts-imenu-node-p "data_type" node)) (defun haskell-ts-defun-name (node) (treesit-node-text (treesit-node-child node 0))) (defun haskell-ts-compile-region-and-go (start end) "Compile the text from START to END in the haskell proc." (interactive "r") (let ((hs (haskell-ts-haskell-session))) (comint-send-string hs ":{\n") (comint-send-region hs start end) (comint-send-string hs "\n:}\n"))) (defun haskell-ts-run-haskell() (interactive) (pop-to-buffer-same-window (if (comint-check-proc "*haskell*") "*haskell*" (make-comint "haskell" "ghci" nil buffer-file-name)))) (defun haskell-ts-haskell-session () (get-buffer-process "*haskell*")) (when (treesit-ready-p 'haskell) (add-to-list 'auto-mode-alist '("\\.hs\\'" . haskell-ts-mode))) (provide 'haskell-ts-mode) ;;; haskell-ts-mode.el ends here --=-=-= Content-Type: text/plain -- Pranshu Sharma --=-=-=--