mirror of
https://github.com/vale981/emacs-ipython-notebook
synced 2025-03-06 09:31:39 -05:00
c78711a7c4
It seems there are enough people out there still on Emacs 24 to warrant undoing some of my recent moves away from eieio to cl-generic. For the near future I will try to keep any changes that are incompatible with Emacs 24 to a development branch. There is still probably plenty of opportunity to make the code more future-proof for an eventual move away from eieio (I'm looking at you oref and sref...)
182 lines
6.5 KiB
EmacsLisp
182 lines
6.5 KiB
EmacsLisp
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;;; ein-traceback.el --- Traceback module
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;; Copyright (C) 2012- Takafumi Arakaki
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;; Author: Takafumi Arakaki <aka.tkf at gmail.com>
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;; This file is NOT part of GNU Emacs.
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;; ein-traceback.el is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; ein-traceback.el is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with ein-traceback.el. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;;; Code:
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(eval-when-compile (require 'cl))
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(require 'eieio)
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(require 'ewoc)
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(require 'ansi-color)
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(require 'ein-core)
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(defclass ein:traceback ()
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((tb-data :initarg :tb-data :type list)
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(notebook :initarg :source-notebook :type ein:$notebook)
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(buffer-name :initarg :buffer-name :type string)
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(buffer :initarg :buffer :type buffer)
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(ewoc :initarg :ewoc :type ewoc)))
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(ein:deflocal ein:%traceback% nil
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"Buffer local variable to store an instance of `ein:traceback'.")
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(defvar ein:tb-buffer-name-template "*ein:tb %s/%s*")
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(defun ein:tb-new (buffer-name notebook)
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(make-instance 'ein:traceback
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:buffer-name buffer-name
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:source-notebook notebook))
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(defmethod ein:tb-get-buffer ((traceback ein:traceback))
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(unless (and (slot-boundp traceback :buffer)
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(buffer-live-p (slot-value traceback 'buffer)))
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(let ((buf (get-buffer-create (slot-value traceback 'buffer-name))))
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(setf (slot-value traceback 'buffer) buf)))
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(slot-value traceback 'buffer))
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(defun ein:tb-pp (ewoc-data)
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(insert (ansi-color-apply ewoc-data)))
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(defmethod ein:tb-render ((traceback ein:traceback) tb-data)
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(with-current-buffer (ein:tb-get-buffer traceback)
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(setq ein:%traceback% traceback)
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(setq buffer-read-only t)
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(let ((inhibit-read-only t)
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(ewoc (ein:ewoc-create #'ein:tb-pp)))
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(erase-buffer)
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(setf (slot-value traceback 'ewoc) ewoc)
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(setf (slot-value traceback 'tb-data) tb-data)
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(mapc (lambda (data) (ewoc-enter-last ewoc data)) tb-data))
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(ein:traceback-mode)))
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(defmethod ein:tb-popup ((traceback ein:traceback) tb-data)
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(ein:tb-render traceback tb-data)
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(pop-to-buffer (ein:tb-get-buffer traceback)))
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;;;###autoload
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(defun ein:tb-show ()
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"Show full traceback in traceback viewer."
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(interactive)
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(unless
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(ein:and-let* ((tb-data (ein:get-traceback-data))
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(url-or-port (ein:get-url-or-port))
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(kernel (ein:get-kernel))
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(notebook (ein:get-notebook))
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(kr-id (ein:kernel-id kernel))
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(tb-name (format ein:tb-buffer-name-template
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url-or-port kr-id)))
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(ein:tb-popup (ein:tb-new tb-name notebook) tb-data)
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t)
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(error "No traceback is available.")))
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(defmethod ein:tb-range-of-node-at-point ((traceback ein:traceback))
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(let* ((ewoc (slot-value traceback 'ewoc))
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(ewoc-node (ewoc-locate ewoc))
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(beg (ewoc-location ewoc-node))
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(end (ein:aand (ewoc-next ewoc ewoc-node) (ewoc-location it))))
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(list beg end)))
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(defmethod ein:tb-file-path-at-point ((traceback ein:traceback))
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(destructuring-bind (beg end)
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(ein:tb-range-of-node-at-point traceback)
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(let* ((file-tail
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(if (>= emacs-major-version 24)
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(next-single-property-change beg 'font-lock-face nil end)
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;; For Emacs 23.x:
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(next-single-property-change beg 'face nil end)))
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(file (when file-tail
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(buffer-substring-no-properties beg file-tail))))
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(if (string-match "\\.pyc$" file)
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(concat (file-name-sans-extension file) ".py")
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file))))
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(defmethod ein:tb-file-lineno-at-point ((traceback ein:traceback))
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(destructuring-bind (beg end)
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(ein:tb-range-of-node-at-point traceback)
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(when (save-excursion
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(goto-char beg)
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(search-forward-regexp "^[-]+> \\([0-9]+\\)" end t))
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(string-to-number (match-string 1)))))
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(defmethod ein:tb-jump-to-source-at-point ((traceback ein:traceback)
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&optional select)
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(let ((file (ein:tb-file-path-at-point traceback))
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(lineno (ein:tb-file-lineno-at-point traceback)))
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(if (string-match "<ipython-input-\\([0-9]+\\)-.*" file)
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(let* ((cellnum (string-to-number (match-string 1 file)))
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(nb (slot-value traceback 'notebook))
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(ws (first (ein:$notebook-worksheets nb)))
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(cells (ein:worksheet-get-cells ws))
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(it (cl-find cellnum cells :key #'(lambda (x)
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(if (same-class-p x 'ein:codecell)
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(slot-value x 'input-prompt-number))))))
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(if it
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(progn
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(pop-to-buffer (ein:notebook-buffer nb))
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(ein:cell-goto-line it lineno))))
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(progn
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(assert (file-exists-p file) nil "File %s does not exist." file)
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(let ((buf (find-file-noselect file))
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(scroll (lambda ()
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(goto-char (point-min))
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(forward-line (1- lineno)))))
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(if select
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(progn (pop-to-buffer buf)
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(funcall scroll))
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(with-selected-window (display-buffer buf)
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(funcall scroll))))))))
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(defun ein:tb-jump-to-source-at-point-command (&optional select)
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(interactive "P")
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(ein:tb-jump-to-source-at-point ein:%traceback% select))
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;;; ein:traceback-mode
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(defun ein:tb-prev-item ()
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(interactive)
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(ewoc-goto-prev (slot-value ein:%traceback% 'ewoc) 1))
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(defun ein:tb-next-item ()
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(interactive)
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(ewoc-goto-next (slot-value ein:%traceback% 'ewoc) 1))
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(defvar ein:traceback-mode-map
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(let ((map (make-sparse-keymap)))
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(define-key map (kbd "RET") 'ein:tb-jump-to-source-at-point-command)
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(define-key map "p" 'ein:tb-prev-item)
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(define-key map "n" 'ein:tb-next-item)
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map)
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"Keymap for ein:traceback-mode.")
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(define-derived-mode ein:traceback-mode special-mode "ein:tb"
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(font-lock-mode))
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(add-hook 'ein:traceback-mode-hook 'ein:truncate-lines-on)
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(provide 'ein-traceback)
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;;; ein-traceback.el ends here
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