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;;; edebug-test-code.el --- Sample code for the Edebug test suite -*- lexical-binding:t -*-
;; Copyright (C) 2017-2025 Free Software Foundation, Inc.
;; Author: Gemini Lasswell
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This file contains sample code used by edebug-tests.el.
;; Before evaluation, it will be preprocessed by
;; `edebug-tests-setup-code-file' which will remove all tags
;; between !'s and save their positions for use by the tests.
;;; Code:
(defun edebug-test-code-fac (n)
!start!(if !step!(< 0 n)
(* n (edebug-test-code-fac (1- n)))!mult!
1))
(defun edebug-test-code-concat (a b flag)
!start!(if flag!flag!
!then-start!(concat a!then-a! b!then-b!)!then-concat!
!else-start!(concat b!else-b! a!else-a!)!else-concat!)!if!)
(defun edebug-test-code-range (num)
!start!(let ((index 0)
(result nil))
(while !lt!(< index num)!test!
(push index result)!loop!
(cl-incf index))!end-loop!
(nreverse result)))
(defun edebug-test-code-choices (input)
!start!(cond
((eq input 0) "zero")
((eq input 7) 42)
(t !edebug!(edebug))))
(defvar edebug-test-code-total nil)
(defun edebug-test-code-multiply (times value)
!start!(setq edebug-test-code-total 0)
(cl-dotimes (index times)
(setq edebug-test-code-total (+ edebug-test-code-total value))!setq!)
edebug-test-code-total)
(defun edebug-test-code-format-vector-node (node)
!start!(concat "["
(apply #'concat (mapcar #'edebug-test-code-format-node node))!apply!
"]"))
(defun edebug-test-code-format-list-node (node)
!start!(concat "{"
(apply #'concat (mapcar #'edebug-test-code-format-node node))!apply!
"}"))
(defun edebug-test-code-format-node (node)
!start!(cond
(!vectorp!(vectorp node!vnode!)!vtest! !vbefore!(edebug-test-code-format-vector-node node))
((listp node) (edebug-test-code-format-list-node node))
(t (format "%s" node))))
(defvar edebug-test-code-flavor "strawberry")
(defmacro edebug-test-code-with-flavor (new-flavor &rest body)
(declare (debug (form body))
(indent 1))
`(let ((edebug-test-code-flavor ,new-flavor))
,@body))
(defun edebug-test-code-try-flavors ()
(let* (tried)
(push edebug-test-code-flavor tried)
!macro!(edebug-test-code-with-flavor "chocolate"
(push edebug-test-code-flavor tried))
tried)!end!)
(unless (featurep 'edebug-tests-nutty)!nutty!
!setq!(setq edebug-test-code-flavor (car (edebug-test-code-try-flavors)))!end-setq!)!end-unless!
(cl-defgeneric edebug-test-code-emphasize (x))
(cl-defmethod edebug-test-code-emphasize ((x integer))
!start!(format "The number is not %s or %s, but %s!"
(1+ x) (1- x) x))
(cl-defmethod edebug-test-code-emphasize ((x string))
!start!(format "***%s***" x))
(defun edebug-test-code-use-methods ()
(list
!number!(edebug-test-code-emphasize 100)
!string!(edebug-test-code-emphasize "yes")))
(defun edebug-test-code-make-lambda (n)
(lambda (x) (+ x!x! n)))
(defun edebug-test-code-use-lambda ()
!start!(mapcar (edebug-test-code-make-lambda 10) '(1 2 3)))
(defun edebug-test-code-circular-read-syntax ()
'(#1=a . #1#))
(defun edebug-test-code-hash-read-syntax ()
!start!(list #("abcd" 1 3 (face italic))
#x01ff))
(defun edebug-test-code-empty-string-list ()
!start!(list "")!step!)
(defun edebug-test-code-current-buffer ()
!start!(with-current-buffer (get-buffer-create "*edebug-test-code-buffer*")
!body!(format "current-buffer: %s" (current-buffer))))
(defun edebug-test-code-use-destructuring-bind ()
(let ((two 2) (three 3))
(cl-destructuring-bind (x . y) (cons two three) (+ x!x! y!y!))))
(defun edebug-test-code-use-cl-macrolet (x)
(cl-macrolet ((wrap (func &rest args)
`(format "The result of applying %s to %s is %S"
',func!func! ',args
,(cons func args))))
(wrap + 1 x)))
(defun edebug-test-code-cl-flet1 ()
(cl-flet
;; This `&rest' sexp head should not collide with
;; the Edebug spec elem of the same name.
((f (&rest x) x)
(gate (x) (+ x 5)))
;; This call to `gate' shouldn't collide with the Edebug spec elem
;; of the same name.
(message "Hi %s" (gate 7))))
(defun edebug-test-code-use-gv-expander (x)
(declare (gv-expander
(lambda (do)
(funcall do `(car ,x) (lambda (v) `(setcar ,x ,v))))))
(car x))
(provide 'edebug-test-code)
;;; edebug-test-code.el ends here
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