| commit | author | age | ||
| 76bbd0 | 1 | ;;; ob-vala.el --- Babel functions for Vala evaluation -*- lexical-binding: t; -*- |
| C | 2 | |
| 3 | ;; Copyright (C) 2017-2018 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | ;; Author: Christian Garbs <mitch@cgarbs.de> | |
| 6 | ;; Keywords: literate programming, reproducible research | |
| 7 | ;; Homepage: https://orgmode.org | |
| 8 | ||
| 9 | ;;; License: | |
| 10 | ||
| 11 | ;; This file is part of GNU Emacs. | |
| 12 | ||
| 13 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
| 14 | ;; it under the terms of the GNU General Public License as published by | |
| 15 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 16 | ;; (at your option) any later version. | |
| 17 | ||
| 18 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 21 | ;; GNU General Public License for more details. | |
| 22 | ||
| 23 | ;; You should have received a copy of the GNU General Public License | |
| 24 | ;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. | |
| 25 | ||
| 26 | ;;; Commentary: | |
| 27 | ||
| 28 | ;; ob-vala.el provides Babel support for the Vala language | |
| 29 | ;; (see http://live.gnome.org/Vala for details) | |
| 30 | ||
| 31 | ;;; Requirements: | |
| 32 | ||
| 33 | ;; - Vala compiler binary (valac) | |
| 34 | ;; - Vala development environment (Vala libraries etc.) | |
| 35 | ;; | |
| 36 | ;; vala-mode.el is nice to have for code formatting, but is not needed | |
| 37 | ;; for ob-vala.el | |
| 38 | ||
| 39 | ;;; Code: | |
| 40 | ||
| 41 | (require 'ob) | |
| 42 | ||
| 43 | (declare-function org-trim "org" (s &optional keep-lead)) | |
| 44 | ||
| 45 | ;; File extension. | |
| 46 | (add-to-list 'org-babel-tangle-lang-exts '("vala" . "vala")) | |
| 47 | ||
| 48 | ;; Header arguments empty by default. | |
| 49 | (defvar org-babel-default-header-args:vala '()) | |
| 50 | ||
| 51 | (defcustom org-babel-vala-compiler "valac" | |
| 52 | "Command used to compile a C source code file into an executable. | |
| 53 | May be either a command in the path, like \"valac\" | |
| 54 | or an absolute path name, like \"/usr/local/bin/valac\". | |
| 55 | Parameters may be used like this: \"valac -v\"" | |
| 56 | :group 'org-babel | |
| 57 | :version "26.1" | |
| 58 | :package-version '(Org . "9.1") | |
| 59 | :type 'string) | |
| 60 | ||
| 61 | ;; This is the main function which is called to evaluate a code | |
| 62 | ;; block. | |
| 63 | ;; | |
| 64 | ;; - run Vala compiler and create a binary in a temporary file | |
| 65 | ;; - compiler/linker flags can be set via :flags header argument | |
| 66 | ;; - if compilation succeeded, run the binary | |
| 67 | ;; - commandline parameters to the binary can be set via :cmdline | |
| 68 | ;; header argument | |
| 69 | ;; - stdout will be parsed as RESULT (control via :result-params | |
| 70 | ;; header argument) | |
| 71 | ;; | |
| 72 | ;; There is no session support because Vala is a compiled language. | |
| 73 | ;; | |
| 74 | ;; This function is heavily based on ob-C.el | |
| 75 | (defun org-babel-execute:vala (body params) | |
| 76 | "Execute a block of Vala code with Babel. | |
| 77 | This function is called by `org-babel-execute-src-block'." | |
| 78 | (message "executing Vala source code block") | |
| 79 | (let* ((tmp-src-file (org-babel-temp-file | |
| 80 | "vala-src-" | |
| 81 | ".vala")) | |
| 82 | (tmp-bin-file (org-babel-temp-file "vala-bin-" org-babel-exeext)) | |
| 83 | (cmdline (cdr (assq :cmdline params))) | |
| 84 | (flags (cdr (assq :flags params)))) | |
| 85 | (with-temp-file tmp-src-file (insert body)) | |
| 86 | (org-babel-eval | |
| 87 | (format "%s %s -o %s %s" | |
| 88 | org-babel-vala-compiler | |
| 89 | (mapconcat #'identity | |
| 90 | (if (listp flags) flags (list flags)) " ") | |
| 91 | (org-babel-process-file-name tmp-bin-file) | |
| 92 | (org-babel-process-file-name tmp-src-file)) "") | |
| 93 | (when (file-executable-p tmp-bin-file) | |
| 94 | (let ((results | |
| 95 | (org-trim | |
| 96 | (org-babel-eval | |
| 97 | (concat tmp-bin-file (if cmdline (concat " " cmdline) "")) "")))) | |
| 98 | (org-babel-reassemble-table | |
| 99 | (org-babel-result-cond (cdr (assq :result-params params)) | |
| 100 | (org-babel-read results) | |
| 101 | (let ((tmp-file (org-babel-temp-file "vala-"))) | |
| 102 | (with-temp-file tmp-file (insert results)) | |
| 103 | (org-babel-import-elisp-from-file tmp-file))) | |
| 104 | (org-babel-pick-name | |
| 105 | (cdr (assq :colname-names params)) (cdr (assq :colnames params))) | |
| 106 | (org-babel-pick-name | |
| 107 | (cdr (assq :rowname-names params)) (cdr (assq :rownames params)))))))) | |
| 108 | ||
| 109 | (defun org-babel-prep-session:vala (_session _params) | |
| 110 | "Prepare a session. | |
| 111 | This function does nothing as Vala is a compiled language with no | |
| 112 | support for sessions." | |
| 113 | (error "Vala is a compiled language -- no support for sessions")) | |
| 114 | ||
| 115 | (provide 'ob-vala) | |
| 116 | ||
| 117 | ;;; ob-vala.el ends here | |
