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;;; eieio-datadebug.el --- EIEIO extensions to the data debugger. -*- lexical-binding:t -*-
;; Copyright (C) 2007-2014 Free Software Foundation, Inc.
;; Author: Eric M. Ludlam <zappo@gnu.org>
;; Keywords: OO, lisp
;; Package: eieio
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; Extensions to data-debug for EIEIO objects.
;;
(require 'eieio)
(require 'data-debug)
;;; Code:
(defun data-debug-insert-object-slots (object prefix)
"Insert all the slots of OBJECT.
PREFIX specifies what to insert at the start of each line."
(let ((attrprefix (concat (make-string (length prefix) ? ) "] ")))
(data-debug/eieio-insert-slots object attrprefix)))
(defun data-debug-insert-object-slots-from-point (point)
"Insert the object slots found at the object button at POINT."
(let ((object (get-text-property point 'ddebug))
(indent (get-text-property point 'ddebug-indent))
start)
(end-of-line)
(setq start (point))
(forward-char 1)
(data-debug-insert-object-slots object
(concat (make-string indent ? )
"~ "))
(goto-char start)))
(defun data-debug-insert-object-button (object prefix prebuttontext)
"Insert a button representing OBJECT.
PREFIX is the text that precedes the button.
PREBUTTONTEXT is some text between PREFIX and the object button."
(let ((start (point))
(end nil)
(str (object-print object))
(tip (format "Object %s\nClass: %S\nParent(s): %S\n%d slots"
(eieio-object-name-string object)
(eieio-object-class object)
(eieio-class-parents (eieio-object-class object))
(length (object-slots object))
))
)
(insert prefix prebuttontext str)
(setq end (point))
(put-text-property (- end (length str)) end 'face 'font-lock-keyword-face)
(put-text-property start end 'ddebug object)
(put-text-property start end 'ddebug-indent(length prefix))
(put-text-property start end 'ddebug-prefix prefix)
(put-text-property start end 'help-echo tip)
(put-text-property start end 'ddebug-function
'data-debug-insert-object-slots-from-point)
(insert "\n")))
;;; METHODS
;;
;; Each object should have an opportunity to show stuff about itself.
(defmethod data-debug/eieio-insert-slots ((obj eieio-default-superclass)
prefix)
"Insert the slots of OBJ into the current DDEBUG buffer."
(let ((inhibit-read-only t))
(data-debug-insert-thing (eieio-object-name-string obj)
prefix
"Name: ")
(let* ((cl (eieio-object-class obj))
(cv (eieio--class-v cl)))
(data-debug-insert-thing (class-constructor cl)
prefix
"Class: ")
;; Loop over all the public slots
(let ((publa (eieio--class-public-a cv))
)
(while publa
(if (slot-boundp obj (car publa))
(let* ((i (eieio--class-slot-initarg (eieio--class-v cl)
(car publa)))
(v (eieio-oref obj (car publa))))
(data-debug-insert-thing
v prefix (concat
(if i (symbol-name i)
(symbol-name (car publa)))
" ")))
;; Unbound case
(let ((i (eieio--class-slot-initarg (eieio--class-v cl)
(car publa))))
(data-debug-insert-custom
"#unbound" prefix
(concat (if i (symbol-name i)
(symbol-name (car publa)))
" ")
'font-lock-keyword-face))
)
(setq publa (cdr publa)))))))
;;; Augment the Data debug thing display list.
(data-debug-add-specialized-thing (lambda (thing) (object-p thing))
#'data-debug-insert-object-button)
;;; DEBUG METHODS
;;
;; A generic function to run DDEBUG on an object and popup a new buffer.
;;
(defmethod data-debug-show ((obj eieio-default-superclass))
"Run ddebug against any EIEIO object OBJ."
(data-debug-new-buffer (format "*%s DDEBUG*" (eieio-object-name obj)))
(data-debug-insert-object-slots obj "]"))
;;; DEBUG FUNCTIONS
;;
(defun eieio-debug-methodinvoke (method class)
"Show the method invocation order for METHOD with CLASS object."
(interactive "aMethod: \nXClass Expression: ")
(let* ((eieio-pre-method-execution-functions
(lambda (l) (throw 'moose l) ))
(data
(catch 'moose (eieio-generic-call
method (list class))))
(_buf (data-debug-new-buffer "*Method Invocation*"))
(data2 (mapcar (lambda (sym)
(symbol-function (car sym)))
data)))
(data-debug-insert-thing data2 ">" "")))
(provide 'eieio-datadebug)
;;; eieio-datadebug.el ends here
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