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;;; jao-clojure.el --- Clojure utilities -*- lexical-binding: t; -*-
;; Copyright (C) 2025 Jose Antonio Ortega Ruiz
;; Author: Jose Antonio Ortega Ruiz <mail@jao.io>
;; Keywords: languages
;; 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Helpers for clojure coding
;;; Code:
(require 'clojure-mode)
(require 'project)
;;;; Jumping between implementation and test files
(defun jao-clojure--ext-dir (prefix)
(let* ((ext (file-name-extension buffer-file-name))
(ext-rx (format "/%s/" ext)))
(if (string-match-p ext-rx buffer-file-name)
(format "%s/%s" prefix ext)
prefix)))
(defun jao-clojure-find-current-test ()
(save-excursion
(and (re-search-backward
"(deftest\\(?:\\W+^:\\w+\\)*\\W+\\b\\(.+\\)\\b" nil t)
(match-string-no-properties 1))))
(defvar jao-clojure--src-candidates '("lib" "src" "srv" "app"))
(defun jao-clojure--test-namespace-p (ns)
(or (string-suffix-p "-test" ns)
(string-match "\\(.+\\)\\.\\(test\\)\\(\\..+\\)" ns)))
(defun jao-clojure-test-buffer-p ()
(jao-clojure--test-namespace-p (clojure-find-ns)))
(defun jao-clojure--test-for (namespace sep)
(funcall cider-test-infer-test-ns namespace))
(defun jao-clojure--infer-test-ns (ns)
(if (jao-clojure--test-namespace-p ns)
ns
(jao-clojure--test-for ns ".")))
(defun jao-clojure--root () (project-root (project-current)))
(defun jao-clojure-jump-to-test ()
"Jump from implementation to test file."
(interactive)
(let* ((f (format "%s/%s/%s.%s"
(jao-clojure--root)
(jao-clojure--ext-dir "test")
(jao-clojure--test-for (clojure-find-ns) "/")
(file-name-extension buffer-file-name)))
(f (replace-regexp-in-string "-" "_" f)))
(find-file f)))
(defun jao-clojure--implementation-for (namespace)
(let ((n (replace-regexp-in-string "-test$" "" namespace)))
(replace-regexp-in-string "\\.test\\." "." n)))
(defun jao-clojure--find-implementation (src)
(let ((f (format "%s/%s/%s.%s"
(jao-clojure--root)
(jao-clojure--ext-dir src)
(jao-clojure--implementation-for (clojure-find-ns))
(file-name-extension buffer-file-name))))
(and (file-exists-p f) f)))
(defun jao-clojure-jump-to-implementation ()
"Jump from test file to implementation."
(interactive)
(let ((impl (car (seq-keep #'jao-clojure--find-implementation
jao-clojure--src-candidates))))
(if impl (find-file impl) (message "No implementation file found"))))
(defun jao-clojure-other-file ()
"Toggle between implementation and test file"
(interactive)
(if (jao-clojure-test-buffer-p)
(jao-clojure-jump-to-implementation)
(jao-clojure-jump-to-test)))
(provide 'jao-clojure)
;;; jao-clojure.el ends here
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