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Diffstat (limited to 'configs/shared/emacs/.emacs.d/elpa/cider-20180719.542/cider-inspector.el')
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diff --git a/configs/shared/emacs/.emacs.d/elpa/cider-20180719.542/cider-inspector.el b/configs/shared/emacs/.emacs.d/elpa/cider-20180719.542/cider-inspector.el new file mode 100644 index 0000000000..61d5007db0 --- /dev/null +++ b/configs/shared/emacs/.emacs.d/elpa/cider-20180719.542/cider-inspector.el @@ -0,0 +1,397 @@ +;;; cider-inspector.el --- Object inspector -*- lexical-binding: t -*- + +;; Copyright © 2013-2018 Vital Reactor, LLC +;; Copyright © 2014-2018 Bozhidar Batsov and CIDER contributors + +;; Author: Ian Eslick <ian@vitalreactor.com> +;; Bozhidar Batsov <bozhidar@batsov.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/>. + +;; This file is not part of GNU Emacs. + +;;; Commentary: + +;; Clojure object inspector inspired by SLIME. + +;;; Code: + +(require 'cl-lib) +(require 'seq) +(require 'cider-eval) + +;; =================================== +;; Inspector Key Map and Derived Mode +;; =================================== + +(defconst cider-inspector-buffer "*cider-inspect*") + +;;; Customization +(defgroup cider-inspector nil + "Presentation and behaviour of the cider value inspector." + :prefix "cider-inspector-" + :group 'cider + :package-version '(cider . "0.10.0")) + +(defcustom cider-inspector-page-size 32 + "Default page size in paginated inspector view. +The page size can be also changed interactively within the inspector." + :type '(integer :tag "Page size" 32) + :group 'cider-inspector + :package-version '(cider . "0.10.0")) + +(defcustom cider-inspector-fill-frame nil + "Controls whether the cider inspector window fills its frame." + :type 'boolean + :group 'cider-inspector + :package-version '(cider . "0.15.0")) + +(defvar cider-inspector-mode-map + (let ((map (make-sparse-keymap))) + (set-keymap-parent map cider-popup-buffer-mode-map) + (define-key map (kbd "RET") #'cider-inspector-operate-on-point) + (define-key map [mouse-1] #'cider-inspector-operate-on-click) + (define-key map "l" #'cider-inspector-pop) + (define-key map "g" #'cider-inspector-refresh) + ;; Page-up/down + (define-key map [next] #'cider-inspector-next-page) + (define-key map [prior] #'cider-inspector-prev-page) + (define-key map " " #'cider-inspector-next-page) + (define-key map (kbd "M-SPC") #'cider-inspector-prev-page) + (define-key map (kbd "S-SPC") #'cider-inspector-prev-page) + (define-key map "s" #'cider-inspector-set-page-size) + (define-key map [tab] #'cider-inspector-next-inspectable-object) + (define-key map "\C-i" #'cider-inspector-next-inspectable-object) + (define-key map [(shift tab)] #'cider-inspector-previous-inspectable-object) + ;; Emacs translates S-TAB to BACKTAB on X. + (define-key map [backtab] #'cider-inspector-previous-inspectable-object) + map)) + +(define-derived-mode cider-inspector-mode special-mode "Inspector" + "Major mode for inspecting Clojure data structures. + +\\{cider-inspector-mode-map}" + (set-syntax-table clojure-mode-syntax-table) + (setq-local electric-indent-chars nil) + (setq-local sesman-system 'CIDER) + (when cider-special-mode-truncate-lines + (setq-local truncate-lines t))) + +;;;###autoload +(defun cider-inspect-last-sexp () + "Inspect the result of the the expression preceding point." + (interactive) + (cider-inspect-expr (cider-last-sexp) (cider-current-ns))) + +;;;###autoload +(defun cider-inspect-defun-at-point () + "Inspect the result of the \"top-level\" expression at point." + (interactive) + (cider-inspect-expr (cider-defun-at-point) (cider-current-ns))) + +;;;###autoload +(defun cider-inspect-last-result () + "Inspect the most recent eval result." + (interactive) + (cider-inspect-expr "*1" (cider-current-ns))) + +;;;###autoload +(defun cider-inspect (&optional arg) + "Inspect the result of the preceding sexp. + +With a prefix argument ARG it inspects the result of the \"top-level\" form. +With a second prefix argument it prompts for an expression to eval and inspect." + (interactive "p") + (pcase arg + (1 (cider-inspect-last-sexp)) + (4 (cider-inspect-defun-at-point)) + (16 (call-interactively #'cider-inspect-expr)))) + +(defvar cider-inspector-location-stack nil + "A stack used to save point locations in inspector buffers. +These locations are used to emulate `save-excursion' between +`cider-inspector-push' and `cider-inspector-pop' operations.") + +(defvar cider-inspector-page-location-stack nil + "A stack used to save point locations in inspector buffers. +These locations are used to emulate `save-excursion' between +`cider-inspector-next-page' and `cider-inspector-prev-page' operations.") + +(defvar cider-inspector-last-command nil + "Contains the value of the most recently used `cider-inspector-*' command. +This is used as an alternative to the built-in `last-command'. Whenever we +invoke any command through \\[execute-extended-command] and its variants, +the value of `last-command' is not set to the command it invokes.") + +;; Operations +;;;###autoload +(defun cider-inspect-expr (expr ns) + "Evaluate EXPR in NS and inspect its value. +Interactively, EXPR is read from the minibuffer, and NS the +current buffer's namespace." + (interactive (list (cider-read-from-minibuffer "Inspect expression: " (cider-sexp-at-point)) + (cider-current-ns))) + (when-let* ((value (cider-sync-request:inspect-expr expr ns (or cider-inspector-page-size 32)))) + (cider-inspector--render-value value))) + +(defun cider-inspector-pop () + "Pop the last value off the inspector stack and render it. +See `cider-sync-request:inspect-pop' and `cider-inspector--render-value'." + (interactive) + (setq cider-inspector-last-command 'cider-inspector-pop) + (when-let* ((value (cider-sync-request:inspect-pop))) + (cider-inspector--render-value value))) + +(defun cider-inspector-push (idx) + "Inspect the value at IDX in the inspector stack and render it. +See `cider-sync-request:insepect-push' and `cider-inspector--render-value'" + (push (point) cider-inspector-location-stack) + (when-let* ((value (cider-sync-request:inspect-push idx))) + (cider-inspector--render-value value))) + +(defun cider-inspector-refresh () + "Re-render the currently inspected value. +See `cider-sync-request:insepect-refresh' and `cider-inspector--render-value'" + (interactive) + (when-let* ((value (cider-sync-request:inspect-refresh))) + (cider-inspector--render-value value))) + +(defun cider-inspector-next-page () + "Jump to the next page when inspecting a paginated sequence/map. + +Does nothing if already on the last page." + (interactive) + (push (point) cider-inspector-page-location-stack) + (when-let* ((value (cider-sync-request:inspect-next-page))) + (cider-inspector--render-value value))) + +(defun cider-inspector-prev-page () + "Jump to the previous page when expecting a paginated sequence/map. + +Does nothing if already on the first page." + (interactive) + (setq cider-inspector-last-command 'cider-inspector-prev-page) + (when-let* ((value (cider-sync-request:inspect-prev-page))) + (cider-inspector--render-value value))) + +(defun cider-inspector-set-page-size (page-size) + "Set the page size in pagination mode to the specified PAGE-SIZE. + +Current page will be reset to zero." + (interactive "nPage size: ") + (when-let* ((value (cider-sync-request:inspect-set-page-size page-size))) + (cider-inspector--render-value value))) + +;; nREPL interactions +(defun cider-sync-request:inspect-pop () + "Move one level up in the inspector stack." + (thread-first '("op" "inspect-pop") + (cider-nrepl-send-sync-request) + (nrepl-dict-get "value"))) + +(defun cider-sync-request:inspect-push (idx) + "Inspect the inside value specified by IDX." + (thread-first `("op" "inspect-push" + "idx" ,idx) + (cider-nrepl-send-sync-request) + (nrepl-dict-get "value"))) + +(defun cider-sync-request:inspect-refresh () + "Re-render the currently inspected value." + (thread-first '("op" "inspect-refresh") + (cider-nrepl-send-sync-request) + (nrepl-dict-get "value"))) + +(defun cider-sync-request:inspect-next-page () + "Jump to the next page in paginated collection view." + (thread-first '("op" "inspect-next-page") + (cider-nrepl-send-sync-request) + (nrepl-dict-get "value"))) + +(defun cider-sync-request:inspect-prev-page () + "Jump to the previous page in paginated collection view." + (thread-first '("op" "inspect-prev-page") + (cider-nrepl-send-sync-request) + (nrepl-dict-get "value"))) + +(defun cider-sync-request:inspect-set-page-size (page-size) + "Set the page size in paginated view to PAGE-SIZE." + (thread-first `("op" "inspect-set-page-size" + "page-size" ,page-size) + (cider-nrepl-send-sync-request) + (nrepl-dict-get "value"))) + +(defun cider-sync-request:inspect-expr (expr ns page-size) + "Evaluate EXPR in context of NS and inspect its result. +Set the page size in paginated view to PAGE-SIZE." + (thread-first (append (nrepl--eval-request expr ns) + `("inspect" "true" + "page-size" ,page-size)) + (cider-nrepl-send-sync-request) + (nrepl-dict-get "value"))) + +;; Render Inspector from Structured Values +(defun cider-inspector--render-value (value) + "Render VALUE." + (cider-make-popup-buffer cider-inspector-buffer 'cider-inspector-mode 'ancillary) + (cider-inspector-render cider-inspector-buffer value) + (cider-popup-buffer-display cider-inspector-buffer t) + (when cider-inspector-fill-frame (delete-other-windows)) + (with-current-buffer cider-inspector-buffer + (when (eq cider-inspector-last-command 'cider-inspector-pop) + (setq cider-inspector-last-command nil) + ;; Prevents error message being displayed when we try to pop + ;; from the top-level of a data struture + (when cider-inspector-location-stack + (goto-char (pop cider-inspector-location-stack)))) + + (when (eq cider-inspector-last-command 'cider-inspector-prev-page) + (setq cider-inspector-last-command nil) + ;; Prevents error message being displayed when we try to + ;; go to a prev-page from the first page + (when cider-inspector-page-location-stack + (goto-char (pop cider-inspector-page-location-stack)))))) + +(defun cider-inspector-render (buffer str) + "Render STR in BUFFER." + (with-current-buffer buffer + (cider-inspector-mode) + (let ((inhibit-read-only t)) + (condition-case nil + (cider-inspector-render* (car (read-from-string str))) + (error (insert "\nInspector error for: " str)))) + (goto-char (point-min)))) + +(defun cider-inspector-render* (elements) + "Render ELEMENTS." + (dolist (el elements) + (cider-inspector-render-el* el))) + +(defun cider-inspector-render-el* (el) + "Render EL." + (cond ((symbolp el) (insert (symbol-name el))) + ((stringp el) (insert (propertize el 'font-lock-face 'font-lock-keyword-face))) + ((and (consp el) (eq (car el) :newline)) + (insert "\n")) + ((and (consp el) (eq (car el) :value)) + (cider-inspector-render-value (cadr el) (cl-caddr el))) + (t (message "Unrecognized inspector object: %s" el)))) + +(defun cider-inspector-render-value (value idx) + "Render VALUE at IDX." + (cider-propertize-region + (list 'cider-value-idx idx + 'mouse-face 'highlight) + (cider-inspector-render-el* (cider-font-lock-as-clojure value)))) + + +;; =================================================== +;; Inspector Navigation (lifted from SLIME inspector) +;; =================================================== + +(defun cider-find-inspectable-object (direction limit) + "Find the next/previous inspectable object. +DIRECTION can be either 'next or 'prev. +LIMIT is the maximum or minimum position in the current buffer. + +Return a list of two values: If an object could be found, the +starting position of the found object and T is returned; +otherwise LIMIT and NIL is returned." + (let ((finder (cl-ecase direction + (next 'next-single-property-change) + (prev 'previous-single-property-change)))) + (let ((prop nil) (curpos (point))) + (while (and (not prop) (not (= curpos limit))) + (let ((newpos (funcall finder curpos 'cider-value-idx nil limit))) + (setq prop (get-text-property newpos 'cider-value-idx)) + (setq curpos newpos))) + (list curpos (and prop t))))) + +(defun cider-inspector-next-inspectable-object (arg) + "Move point to the next inspectable object. +With optional ARG, move across that many objects. +If ARG is negative, move backwards." + (interactive "p") + (let ((maxpos (point-max)) (minpos (point-min)) + (previously-wrapped-p nil)) + ;; Forward. + (while (> arg 0) + (seq-let (pos foundp) (cider-find-inspectable-object 'next maxpos) + (if foundp + (progn (goto-char pos) (setq arg (1- arg)) + (setq previously-wrapped-p nil)) + (if (not previously-wrapped-p) ; cycle detection + (progn (goto-char minpos) (setq previously-wrapped-p t)) + (error "No inspectable objects"))))) + ;; Backward. + (while (< arg 0) + (seq-let (pos foundp) (cider-find-inspectable-object 'prev minpos) + ;; CIDER-OPEN-INSPECTOR inserts the title of an inspector page + ;; as a presentation at the beginning of the buffer; skip + ;; that. (Notice how this problem can not arise in ``Forward.'') + (if (and foundp (/= pos minpos)) + (progn (goto-char pos) (setq arg (1+ arg)) + (setq previously-wrapped-p nil)) + (if (not previously-wrapped-p) ; cycle detection + (progn (goto-char maxpos) (setq previously-wrapped-p t)) + (error "No inspectable objects"))))))) + +(defun cider-inspector-previous-inspectable-object (arg) + "Move point to the previous inspectable object. +With optional ARG, move across that many objects. +If ARG is negative, move forwards." + (interactive "p") + (cider-inspector-next-inspectable-object (- arg))) + +(defun cider-inspector-property-at-point () + "Return property at point." + (let* ((properties '(cider-value-idx cider-range-button + cider-action-number)) + (find-property + (lambda (point) + (cl-loop for property in properties + for value = (get-text-property point property) + when value + return (list property value))))) + (or (funcall find-property (point)) + (funcall find-property (1- (point)))))) + +(defun cider-inspector-operate-on-point () + "Invoke the command for the text at point. +1. If point is on a value then recursively call the inspector on +that value. +2. If point is on an action then call that action. +3. If point is on a range-button fetch and insert the range." + (interactive) + (seq-let (property value) (cider-inspector-property-at-point) + (cl-case property + (cider-value-idx + (cider-inspector-push value)) + ;; TODO: range and action handlers + (t (error "No object at point"))))) + +(defun cider-inspector-operate-on-click (event) + "Move to EVENT's position and operate the part." + (interactive "@e") + (let ((point (posn-point (event-end event)))) + (cond ((and point + (or (get-text-property point 'cider-value-idx))) + (goto-char point) + (cider-inspector-operate-on-point)) + (t + (error "No clickable part here"))))) + +(provide 'cider-inspector) + +;;; cider-inspector.el ends here |