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Diffstat (limited to 'configs/shared/emacs/.emacs.d/elpa/cider-20180908.1925/cider-debug.el')
| -rw-r--r-- | configs/shared/emacs/.emacs.d/elpa/cider-20180908.1925/cider-debug.el | 755 |
1 files changed, 0 insertions, 755 deletions
diff --git a/configs/shared/emacs/.emacs.d/elpa/cider-20180908.1925/cider-debug.el b/configs/shared/emacs/.emacs.d/elpa/cider-20180908.1925/cider-debug.el deleted file mode 100644 index 7ea5b87500..0000000000 --- a/configs/shared/emacs/.emacs.d/elpa/cider-20180908.1925/cider-debug.el +++ /dev/null @@ -1,755 +0,0 @@ -;;; cider-debug.el --- CIDER interaction with the cider.debug nREPL middleware -*- lexical-binding: t; -*- - -;; Copyright © 2015-2018 Bozhidar Batsov, Artur Malabarba and CIDER contributors - -;; Author: Artur Malabarba <bruce.connor.am@gmail.com> - -;; 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 <http://www.gnu.org/licenses/>. - -;;; Commentary: - -;; Instrument code with `cider-debug-defun-at-point', and when the code is -;; executed cider-debug will kick in. See this function's doc for more -;; information. - -;;; Code: - -(require 'nrepl-dict) -(require 'nrepl-client) ; `nrepl--mark-id-completed' -(require 'cider-eval) -(require 'cider-client) -(require 'cider-util) -(require 'cider-inspector) -(require 'cider-browse-ns) -(require 'cider-common) -(require 'subr-x) -(require 'cider-compat) -(require 'seq) -(require 'spinner) - - -;;; Customization -(defgroup cider-debug nil - "Presentation and behaviour of the cider debugger." - :prefix "cider-debug-" - :group 'cider - :package-version '(cider . "0.10.0")) - -(defface cider-debug-code-overlay-face - '((((class color) (background light)) :background "grey80") - (((class color) (background dark)) :background "grey30")) - "Face used to mark code being debugged." - :group 'cider-debug - :package-version '(cider . "0.9.1")) - -(defface cider-debug-prompt-face - '((t :underline t :inherit font-lock-builtin-face)) - "Face used to highlight keys in the debug prompt." - :group 'cider-debug - :package-version '(cider . "0.10.0")) - -(defface cider-enlightened-face - '((((class color) (background light)) :inherit cider-result-overlay-face - :box (:color "darkorange" :line-width -1)) - (((class color) (background dark)) :inherit cider-result-overlay-face - ;; "#dd0" is a dimmer yellow. - :box (:color "#990" :line-width -1))) - "Face used to mark enlightened sexps and their return values." - :group 'cider-debug - :package-version '(cider . "0.11.0")) - -(defface cider-enlightened-local-face - '((((class color) (background light)) :weight bold :foreground "darkorange") - (((class color) (background dark)) :weight bold :foreground "yellow")) - "Face used to mark enlightened locals (not their values)." - :group 'cider-debug - :package-version '(cider . "0.11.0")) - -(defcustom cider-debug-prompt 'overlay - "If and where to show the keys while debugging. -If `minibuffer', show it in the minibuffer along with the return value. -If `overlay', show it in an overlay above the current function. -If t, do both. -If nil, don't list available keys at all." - :type '(choice (const :tag "Show in minibuffer" minibuffer) - (const :tag "Show above function" overlay) - (const :tag "Show in both places" t) - (const :tag "Don't list keys" nil)) - :group 'cider-debug - :package-version '(cider . "0.10.0")) - -(defcustom cider-debug-use-overlays t - "Whether to higlight debugging information with overlays. -Takes the same possible values as `cider-use-overlays', but only applies to -values displayed during debugging sessions. -To control the overlay that lists possible keys above the current function, -configure `cider-debug-prompt' instead." - :type '(choice (const :tag "End of line" t) - (const :tag "Bottom of screen" nil) - (const :tag "Both" both)) - :group 'cider-debug - :package-version '(cider . "0.9.1")) - -(defcustom cider-debug-print-level 10 - "The print level for values displayed by the debugger. -This variable must be set before starting the repl connection." - :type '(choice (const :tag "No limit" nil) - (integer :tag "Max depth" 10)) - :group 'cider-debug - :package-version '(cider . "0.10.0")) - -(defcustom cider-debug-print-length 10 - "The print length for values displayed by the debugger. -This variable must be set before starting the repl connection." - :type '(choice (const :tag "No limit" nil) - (integer :tag "Max depth" 10)) - :group 'cider-debug - :package-version '(cider . "0.10.0")) - - -;;; Implementation -(defun cider-browse-instrumented-defs () - "List all instrumented definitions." - (interactive) - (if-let* ((all (thread-first (cider-nrepl-send-sync-request '("op" "debug-instrumented-defs")) - (nrepl-dict-get "list")))) - (with-current-buffer (cider-popup-buffer cider-browse-ns-buffer t) - (let ((inhibit-read-only t)) - (erase-buffer) - (dolist (list all) - (let* ((ns (car list)) - (ns-vars-with-meta (cider-sync-request:ns-vars-with-meta ns)) - ;; seq of metadata maps of the instrumented vars - (instrumented-meta (mapcar (apply-partially #'nrepl-dict-get ns-vars-with-meta) - (cdr list)))) - (cider-browse-ns--list (current-buffer) ns - (seq-mapn #'cider-browse-ns--properties - (cdr list) - instrumented-meta) - - ns 'noerase) - (goto-char (point-max)) - (insert "\n")))) - (goto-char (point-min))) - (message "No currently instrumented definitions"))) - -(defun cider--debug-response-handler (response) - "Handles RESPONSE from the cider.debug middleware." - (nrepl-dbind-response response (status id causes) - (when (member "enlighten" status) - (cider--handle-enlighten response)) - (when (or (member "eval-error" status) - (member "stack" status)) - ;; TODO: Make the error buffer a bit friendlier when we're just printing - ;; the stack. - (cider--render-stacktrace-causes causes)) - (when (member "need-debug-input" status) - (cider--handle-debug response)) - (when (member "done" status) - (nrepl--mark-id-completed id)))) - -(defun cider--debug-init-connection () - "Initialize a connection with the cider.debug middleware." - (cider-nrepl-send-request - (nconc '("op" "init-debugger") - (when cider-debug-print-level - `("print-level" ,cider-debug-print-level)) - (when cider-debug-print-length - `("print-length" ,cider-debug-print-length))) - #'cider--debug-response-handler)) - - -;;; Debugging overlays -(defconst cider--fringe-arrow-string - #("." 0 1 (display (left-fringe right-triangle))) - "Used as an overlay's before-string prop to place a fringe arrow.") - -(defun cider--debug-display-result-overlay (value) - "Place an overlay at point displaying VALUE." - (when cider-debug-use-overlays - ;; This is cosmetic, let's ensure it doesn't break the session no matter what. - (ignore-errors - ;; Result - (cider--make-result-overlay (cider-font-lock-as-clojure value) - :where (point-marker) - :type 'debug-result - 'before-string cider--fringe-arrow-string) - ;; Code - (cider--make-overlay (save-excursion (clojure-backward-logical-sexp 1) (point)) - (point) 'debug-code - 'face 'cider-debug-code-overlay-face - ;; Higher priority than `show-paren'. - 'priority 2000)))) - - -;;; Minor mode -(defvar-local cider--debug-mode-commands-dict nil - "An nrepl-dict from keys to debug commands. -Autogenerated by `cider--turn-on-debug-mode'.") - -(defvar-local cider--debug-mode-response nil - "Response that triggered current debug session. -Set by `cider--turn-on-debug-mode'.") - -(defcustom cider-debug-display-locals nil - "If non-nil, local variables are displayed while debugging. -Can be toggled at any time with `\\[cider-debug-toggle-locals]'." - :type 'boolean - :group 'cider-debug - :package-version '(cider . "0.10.0")) - -(defun cider--debug-format-locals-list (locals) - "Return a string description of list LOCALS. -Each element of LOCALS should be a list of at least two elements." - (if locals - (let ((left-col-width - ;; To right-indent the variable names. - (apply #'max (mapcar (lambda (l) (string-width (car l))) locals)))) - ;; A format string to build a format string. :-P - (mapconcat (lambda (l) (format (format " %%%ds: %%s\n" left-col-width) - (propertize (car l) 'face 'font-lock-variable-name-face) - (cider-font-lock-as-clojure (cadr l)))) - locals "")) - "")) - -(defun cider--debug-prompt (command-dict) - "Return prompt to display for COMMAND-DICT." - ;; Force `default' face, otherwise the overlay "inherits" the face of the text - ;; after it. - (format (propertize "%s\n" 'face 'default) - (string-join - (nrepl-dict-map (lambda (char cmd) - (when-let* ((pos (cl-search char cmd))) - (put-text-property pos (1+ pos) 'face 'cider-debug-prompt-face cmd)) - cmd) - command-dict) - " "))) - -(defvar-local cider--debug-prompt-overlay nil) - -(defun cider--debug-mode-redisplay () - "Display the input prompt to the user." - (nrepl-dbind-response cider--debug-mode-response (debug-value input-type locals) - (when (or (eq cider-debug-prompt t) - (eq cider-debug-prompt 'overlay)) - (if (overlayp cider--debug-prompt-overlay) - (overlay-put cider--debug-prompt-overlay - 'before-string (cider--debug-prompt input-type)) - (setq cider--debug-prompt-overlay - (cider--make-overlay - (max (car (cider-defun-at-point 'bounds)) - (window-start)) - nil 'debug-prompt - 'before-string (cider--debug-prompt input-type))))) - (let* ((value (concat " " cider-eval-result-prefix - (cider-font-lock-as-clojure - (or debug-value "#unknown#")))) - (to-display - (concat (when cider-debug-display-locals - (cider--debug-format-locals-list locals)) - (when (or (eq cider-debug-prompt t) - (eq cider-debug-prompt 'minibuffer)) - (cider--debug-prompt input-type)) - (when (or (not cider-debug-use-overlays) - (eq cider-debug-use-overlays 'both)) - value)))) - (if (> (string-width to-display) 0) - (message "%s" to-display) - ;; If there's nothing to display in the minibuffer. Just send the value - ;; to the Messages buffer. - (message "%s" value) - (message nil))))) - -(defun cider-debug-toggle-locals () - "Toggle display of local variables." - (interactive) - (setq cider-debug-display-locals (not cider-debug-display-locals)) - (cider--debug-mode-redisplay)) - -(defun cider--debug-lexical-eval (key form &optional callback _point) - "Eval FORM in the lexical context of debug session given by KEY. -Do nothing if CALLBACK is provided. -Designed to be used as `cider-interactive-eval-override' and called instead -of `cider-interactive-eval' in debug sessions." - ;; The debugger uses its own callback, so if the caller is passing a callback - ;; we return nil and let `cider-interactive-eval' do its thing. - (unless callback - (cider-debug-mode-send-reply (format "{:response :eval, :code %s}" form) - key) - t)) - -(defvar cider--debug-mode-tool-bar-map - (let ((tool-bar-map (make-sparse-keymap))) - (tool-bar-add-item "right-arrow" #'cider-debug-mode-send-reply :next :label "Next step") - (tool-bar-add-item "next-node" #'cider-debug-mode-send-reply :continue :label "Continue non-stop") - (tool-bar-add-item "jump-to" #'cider-debug-mode-send-reply :out :label "Out of sexp") - (tool-bar-add-item "exit" #'cider-debug-mode-send-reply :quit :label "Quit") - tool-bar-map)) - -(defvar cider--debug-mode-map) - -(define-minor-mode cider--debug-mode - "Mode active during debug sessions. -In order to work properly, this mode must be activated by -`cider--turn-on-debug-mode'." - nil " DEBUG" '() - (if cider--debug-mode - (if cider--debug-mode-response - (nrepl-dbind-response cider--debug-mode-response (input-type) - ;; A debug session is an ongoing eval, but it's annoying to have the - ;; spinner spinning while you debug. - (when spinner-current (spinner-stop)) - (setq-local tool-bar-map cider--debug-mode-tool-bar-map) - (add-hook 'kill-buffer-hook #'cider--debug-quit nil 'local) - (add-hook 'before-revert-hook #'cider--debug-quit nil 'local) - (unless (consp input-type) - (error "Activated debug-mode on a message not asking for commands: %s" cider--debug-mode-response)) - ;; Integrate with eval commands. - (setq cider-interactive-eval-override - (apply-partially #'cider--debug-lexical-eval - (nrepl-dict-get cider--debug-mode-response "key"))) - ;; Set the keymap. - (nrepl-dict-map (lambda (char _cmd) - (unless (string= char "h") ; `here' needs a special command. - (define-key cider--debug-mode-map char #'cider-debug-mode-send-reply)) - (when (string= char "o") - (define-key cider--debug-mode-map (upcase char) #'cider-debug-mode-send-reply))) - input-type) - (setq cider--debug-mode-commands-dict input-type) - ;; Show the prompt. - (cider--debug-mode-redisplay) - ;; If a sync request is ongoing, the user can't act normally to - ;; provide input, so we enter `recursive-edit'. - (when nrepl-ongoing-sync-request - (recursive-edit))) - (cider--debug-mode -1) - (if (called-interactively-p 'any) - (user-error (substitute-command-keys "Don't call this mode manually, use `\\[universal-argument] \\[cider-eval-defun-at-point]' instead")) - (error "Attempt to activate `cider--debug-mode' without setting `cider--debug-mode-response' first"))) - (setq cider-interactive-eval-override nil) - (setq cider--debug-mode-commands-dict nil) - (setq cider--debug-mode-response nil) - ;; We wait a moment before clearing overlays and the read-onlyness, so that - ;; cider-nrepl has a chance to send the next message, and so that the user - ;; doesn't accidentally hit `n' between two messages (thus editing the code). - (when-let* ((proc (unless nrepl-ongoing-sync-request - (get-buffer-process (cider-current-repl))))) - (accept-process-output proc 1)) - (unless cider--debug-mode - (setq buffer-read-only nil) - (cider--debug-remove-overlays (current-buffer))) - (when nrepl-ongoing-sync-request - (ignore-errors (exit-recursive-edit))))) - -;;; Bind the `:here` command to both h and H, because it behaves differently if -;;; invoked with an uppercase letter. -(define-key cider--debug-mode-map "h" #'cider-debug-move-here) -(define-key cider--debug-mode-map "H" #'cider-debug-move-here) - -(defun cider--debug-remove-overlays (&optional buffer) - "Remove CIDER debug overlays from BUFFER if variable `cider--debug-mode' is nil." - (when (or (not buffer) (buffer-live-p buffer)) - (with-current-buffer (or buffer (current-buffer)) - (unless cider--debug-mode - (kill-local-variable 'tool-bar-map) - (remove-overlays nil nil 'category 'debug-result) - (remove-overlays nil nil 'category 'debug-code) - (setq cider--debug-prompt-overlay nil) - (remove-overlays nil nil 'category 'debug-prompt))))) - -(defun cider--debug-set-prompt (value) - "Set `cider-debug-prompt' to VALUE, then redisplay." - (setq cider-debug-prompt value) - (cider--debug-mode-redisplay)) - -(easy-menu-define cider-debug-mode-menu cider--debug-mode-map - "Menu for CIDER debug mode" - `("CIDER Debugger" - ["Next step" (cider-debug-mode-send-reply ":next") :keys "n"] - ["Continue non-stop" (cider-debug-mode-send-reply ":continue") :keys "c"] - ["Move out of sexp" (cider-debug-mode-send-reply ":out") :keys "o"] - ["Quit" (cider-debug-mode-send-reply ":quit") :keys "q"] - "--" - ["Evaluate in current scope" (cider-debug-mode-send-reply ":eval") :keys "e"] - ["Inject value" (cider-debug-mode-send-reply ":inject") :keys "i"] - ["Inspect value" (cider-debug-mode-send-reply ":inspect")] - ["Inspect local variables" (cider-debug-mode-send-reply ":locals") :keys "l"] - "--" - ("Configure keys prompt" - ["Don't show keys" (cider--debug-set-prompt nil) :style toggle :selected (eq cider-debug-prompt nil)] - ["Show in minibuffer" (cider--debug-set-prompt 'minibuffer) :style toggle :selected (eq cider-debug-prompt 'minibuffer)] - ["Show above function" (cider--debug-set-prompt 'overlay) :style toggle :selected (eq cider-debug-prompt 'overlay)] - ["Show in both places" (cider--debug-set-prompt t) :style toggle :selected (eq cider-debug-prompt t)] - "--" - ["List locals" cider-debug-toggle-locals :style toggle :selected cider-debug-display-locals]) - ["Customize" (customize-group 'cider-debug)])) - -(defun cider--uppercase-command-p () - "Return non-nil if the last command was uppercase letter." - (ignore-errors - (let ((case-fold-search nil)) - (string-match "[[:upper:]]" (string last-command-event))))) - -(defun cider-debug-mode-send-reply (command &optional key force) - "Reply to the message that started current bufer's debugging session. -COMMAND is sent as the input option. KEY can be provided to reply to a -specific message. If FORCE is non-nil, send a \"force?\" argument in the -message." - (interactive (list - (if (symbolp last-command-event) - (symbol-name last-command-event) - (ignore-errors - (concat ":" (nrepl-dict-get cider--debug-mode-commands-dict - (downcase (string last-command-event)))))) - nil - (cider--uppercase-command-p))) - (when (and (string-prefix-p ":" command) force) - (setq command (format "{:response %s :force? true}" command))) - (cider-nrepl-send-unhandled-request - `("op" "debug-input" - "input" ,(or command ":quit") - "key" ,(or key (nrepl-dict-get cider--debug-mode-response "key")))) - (ignore-errors (cider--debug-mode -1))) - -(defun cider--debug-quit () - "Send a :quit reply to the debugger. Used in hooks." - (when cider--debug-mode - (cider-debug-mode-send-reply ":quit") - (message "Quitting debug session"))) - - -;;; Movement logic -(defconst cider--debug-buffer-format "*cider-debug %s*") - -(defun cider--debug-trim-code (code) - "Remove whitespace and reader macros from the start of the CODE. -Return trimmed CODE." - (replace-regexp-in-string "\\`#[a-z]+[\n\r[:blank:]]*" "" code)) - -(declare-function cider-set-buffer-ns "cider-mode") -(defun cider--initialize-debug-buffer (code ns id &optional reason) - "Create a new debugging buffer with CODE and namespace NS. -ID is the id of the message that instrumented CODE. -REASON is a keyword describing why this buffer was necessary." - (let ((buffer-name (format cider--debug-buffer-format id))) - (if-let* ((buffer (get-buffer buffer-name))) - (cider-popup-buffer-display buffer 'select) - (with-current-buffer (cider-popup-buffer buffer-name 'select - #'clojure-mode 'ancillary) - (cider-set-buffer-ns ns) - (setq buffer-undo-list nil) - (let ((inhibit-read-only t) - (buffer-undo-list t)) - (erase-buffer) - (insert (format "%s" (cider--debug-trim-code code))) - (when code - (insert "\n\n\n;; We had to create this temporary buffer because we couldn't find the original definition. That probably happened because " - reason - ".") - (fill-paragraph)) - (cider--font-lock-ensure) - (set-buffer-modified-p nil)))) - (switch-to-buffer buffer-name) - (goto-char (point-min)))) - -(defun cider--debug-goto-keyval (key) - "Find KEY in current sexp or return nil." - (when-let* ((limit (ignore-errors (save-excursion (up-list) (point))))) - (search-forward-regexp (concat "\\_<" (regexp-quote key) "\\_>") - limit 'noerror))) - -(defun cider--debug-move-point (coordinates) - "Place point on after the sexp specified by COORDINATES. -COORDINATES is a list of integers that specify how to navigate into the -sexp that is after point when this function is called. - -As an example, a COORDINATES list of '(1 0 2) means: - - enter next sexp then `forward-sexp' once, - - enter next sexp, - - enter next sexp then `forward-sexp' twice. - -In the following snippet, this takes us to the (* x 2) sexp (point is left -at the end of the given sexp). - - (letfn [(twice [x] - (* x 2))] - (twice 15)) - -In addition to numbers, a coordinate can be a string. This string names the -key of a map, and it means \"go to the value associated with this key\"." - (condition-case-unless-debug nil - ;; Navigate through sexps inside the sexp. - (let ((in-syntax-quote nil)) - (while coordinates - (while (clojure--looking-at-non-logical-sexp) - (forward-sexp)) - ;; An `@x` is read as (deref x), so we pop coordinates once to account - ;; for the extra depth, and move past the @ char. - (if (eq ?@ (char-after)) - (progn (forward-char 1) - (pop coordinates)) - (down-list) - ;; Are we entering a syntax-quote? - (when (looking-back "`\\(#{\\|[{[(]\\)" (line-beginning-position)) - ;; If we are, this affects all nested structures until the next `~', - ;; so we set this variable for all following steps in the loop. - (setq in-syntax-quote t)) - (when in-syntax-quote - ;; A `(. .) is read as (seq (concat (list .) (list .))). This pops - ;; the `seq', since the real coordinates are inside the `concat'. - (pop coordinates) - ;; Non-list seqs like `[] and `{} are read with - ;; an extra (apply vector ...), so pop it too. - (unless (eq ?\( (char-before)) - (pop coordinates))) - ;; #(...) is read as (fn* ([] ...)), so we patch that here. - (when (looking-back "#(" (line-beginning-position)) - (pop coordinates)) - (if coordinates - (let ((next (pop coordinates))) - (when in-syntax-quote - ;; We're inside the `concat' form, but we need to discard the - ;; actual `concat' symbol from the coordinate. - (setq next (1- next))) - ;; String coordinates are map keys. - (if (stringp next) - (cider--debug-goto-keyval next) - (clojure-forward-logical-sexp next) - (when in-syntax-quote - (clojure-forward-logical-sexp 1) - (forward-sexp -1) - ;; Here a syntax-quote is ending. - (let ((match (when (looking-at "~@?") - (match-string 0)))) - (when match - (setq in-syntax-quote nil)) - ;; A `~@' is read as the object itself, so we don't pop - ;; anything. - (unless (equal "~@" match) - ;; Anything else (including a `~') is read as a `list' - ;; form inside the `concat', so we need to pop the list - ;; from the coordinates. - (pop coordinates)))))) - ;; If that extra pop was the last coordinate, this represents the - ;; entire #(...), so we should move back out. - (backward-up-list)))) - ;; Place point at the end of instrumented sexp. - (clojure-forward-logical-sexp 1)) - ;; Avoid throwing actual errors, since this happens on every breakpoint. - (error (message "Can't find instrumented sexp, did you edit the source?")))) - -(defun cider--debug-position-for-code (code) - "Return non-nil if point is roughly before CODE. -This might move point one line above." - (or (looking-at-p (regexp-quote code)) - (let ((trimmed (regexp-quote (cider--debug-trim-code code)))) - (or (looking-at-p trimmed) - ;; If this is a fake #dbg injected by `C-u - ;; C-M-x', then the sexp we want is actually on - ;; the line above. - (progn (forward-line -1) - (looking-at-p trimmed)))))) - -(defun cider--debug-find-source-position (response &optional create-if-needed) - "Return a marker of the position after the sexp specified in RESPONSE. -This marker might be in a different buffer! If the sexp can't be -found (file that contains the code is no longer visited or has been -edited), return nil. However, if CREATE-IF-NEEDED is non-nil, a new buffer -is created in this situation and the return value is never nil. - -Follow the \"line\" and \"column\" entries in RESPONSE, and check whether -the code at point matches the \"code\" entry in RESPONSE. If it doesn't, -assume that the code in this file has been edited, and create a temp buffer -holding the original code. -Either way, navigate inside the code by following the \"coor\" entry which -is a coordinate measure in sexps." - (nrepl-dbind-response response (code file line column ns original-id coor) - (when (or code (and file line column)) - ;; This is for restoring current-buffer. - (save-excursion - (let ((out)) - ;; We prefer in-source debugging. - (when-let* ((buf (and file line column - (ignore-errors - (cider--find-buffer-for-file file))))) - ;; The logic here makes it hard to use `with-current-buffer'. - (with-current-buffer buf - ;; This is for restoring point inside buf. - (save-excursion - ;; Get to the proper line & column in the file - (forward-line (- line (line-number-at-pos))) - (move-to-column column) - ;; Check if it worked - (when (cider--debug-position-for-code code) - ;; Find the desired sexp. - (cider--debug-move-point coor) - (setq out (point-marker)))))) - ;; But we can create a temp buffer if that fails. - (or out - (when create-if-needed - (cider--initialize-debug-buffer - code ns original-id - (if (and line column) - "you edited the code" - "your nREPL version is older than 0.2.11")) - (save-excursion - (cider--debug-move-point coor) - (point-marker))))))))) - -(defun cider--handle-debug (response) - "Handle debugging notification. -RESPONSE is a message received from the nrepl describing the input -needed. It is expected to contain at least \"key\", \"input-type\", and -\"prompt\", and possibly other entries depending on the input-type." - (nrepl-dbind-response response (debug-value key input-type prompt inspect) - (condition-case-unless-debug e - (progn - (pcase input-type - ("expression" (cider-debug-mode-send-reply - (condition-case nil - (cider-read-from-minibuffer - (or prompt "Expression: ")) - (quit "nil")) - key)) - ((pred sequencep) - (let* ((marker (cider--debug-find-source-position response 'create-if-needed))) - (pop-to-buffer (marker-buffer marker)) - (goto-char marker)) - ;; The overlay code relies on window boundaries, but point could have been - ;; moved outside the window by some other code. Redisplay here to ensure the - ;; visible window includes point. - (redisplay) - ;; Remove overlays AFTER redisplaying! Otherwise there's a visible - ;; flicker even if we immediately recreate the overlays. - (cider--debug-remove-overlays) - (when cider-debug-use-overlays - (cider--debug-display-result-overlay debug-value)) - (setq cider--debug-mode-response response) - (cider--debug-mode 1))) - (when inspect - (cider-inspector--render-value inspect))) - ;; If something goes wrong, we send a "quit" or the session hangs. - (error (cider-debug-mode-send-reply ":quit" key) - (message "Error encountered while handling the debug message: %S" e))))) - -(defun cider--handle-enlighten (response) - "Handle an enlighten notification. -RESPONSE is a message received from the nrepl describing the value and -coordinates of a sexp. Create an overlay after the specified sexp -displaying its value." - (when-let* ((marker (cider--debug-find-source-position response))) - (with-current-buffer (marker-buffer marker) - (save-excursion - (goto-char marker) - (clojure-backward-logical-sexp 1) - (nrepl-dbind-response response (debug-value erase-previous) - (when erase-previous - (remove-overlays (point) marker 'category 'enlighten)) - (when debug-value - (if (memq (char-before marker) '(?\) ?\] ?})) - ;; Enlightening a sexp looks like a regular return value, except - ;; for a different border. - (cider--make-result-overlay (cider-font-lock-as-clojure debug-value) - :where (cons marker marker) - :type 'enlighten - :prepend-face 'cider-enlightened-face) - ;; Enlightening a symbol uses a more abbreviated format. The - ;; result face is the same as a regular result, but we also color - ;; the symbol with `cider-enlightened-local-face'. - (cider--make-result-overlay (cider-font-lock-as-clojure debug-value) - :format "%s" - :where (cons (point) marker) - :type 'enlighten - 'face 'cider-enlightened-local-face)))))))) - - -;;; Move here command -;; This is the inverse of `cider--debug-move-point'. However, that algorithm is -;; complicated, and trying to code its inverse would probably be insane. -;; Instead, we find the coordinate by trial and error. -(defun cider--debug-find-coordinates-for-point (target &optional list-so-far) - "Return the coordinates list for reaching TARGET. -Assumes that the next thing after point is a logical Clojure sexp and that -TARGET is inside it. The returned list is suitable for use in -`cider--debug-move-point'. LIST-SO-FAR is for internal use." - (when (looking-at (rx (or "(" "[" "#{" "{"))) - (let ((starting-point (point))) - (unwind-protect - (let ((x 0)) - ;; Keep incrementing the last coordinate until we've moved - ;; past TARGET. - (while (condition-case nil - (progn (goto-char starting-point) - (cider--debug-move-point (append list-so-far (list x))) - (< (point) target)) - ;; Not a valid coordinate. Move back a step and stop here. - (scan-error (setq x (1- x)) - nil)) - (setq x (1+ x))) - (setq list-so-far (append list-so-far (list x))) - ;; We have moved past TARGET, now determine whether we should - ;; stop, or if target is deeper inside the previous sexp. - (if (or (= target (point)) - (progn (forward-sexp -1) - (<= target (point)))) - list-so-far - (goto-char starting-point) - (cider--debug-find-coordinates-for-point target list-so-far))) - ;; `unwind-protect' clause. - (goto-char starting-point))))) - -(defun cider-debug-move-here (&optional force) - "Skip any breakpoints up to point. -The boolean value of FORCE will be sent in the reply." - (interactive (list (cider--uppercase-command-p))) - (unless cider--debug-mode - (user-error "`cider-debug-move-here' only makes sense during a debug session")) - (let ((here (point))) - (nrepl-dbind-response cider--debug-mode-response (line column) - (if (and line column (buffer-file-name)) - (progn ;; Get to the proper line & column in the file - (forward-line (1- (- line (line-number-at-pos)))) - (move-to-column column)) - (beginning-of-defun)) - ;; Is HERE inside the sexp being debugged? - (when (or (< here (point)) - (save-excursion - (forward-sexp 1) - (> here (point)))) - (user-error "Point is outside the sexp being debugged")) - ;; Move forward untill start of sexp. - (comment-normalize-vars) - (comment-forward (point-max)) - ;; Find the coordinate and send it. - (cider-debug-mode-send-reply - (format "{:response :here, :coord %s :force? %s}" - (cider--debug-find-coordinates-for-point here) - (if force "true" "false")))))) - - -;;; User commands -;;;###autoload -(defun cider-debug-defun-at-point () - "Instrument the \"top-level\" expression at point. -If it is a defn, dispatch the instrumented definition. Otherwise, -immediately evaluate the instrumented expression. - -While debugged code is being evaluated, the user is taken through the -source code and displayed the value of various expressions. At each step, -a number of keys will be prompted to the user." - (interactive) - (cider-eval-defun-at-point 'debug-it)) - -(provide 'cider-debug) -;;; cider-debug.el ends here |