diff options
Diffstat (limited to 'lib/tools/emacs/erlang.el')
| -rw-r--r-- | lib/tools/emacs/erlang.el | 547 |
1 files changed, 338 insertions, 209 deletions
diff --git a/lib/tools/emacs/erlang.el b/lib/tools/emacs/erlang.el index 0a3fc0ddff..73c6b8d768 100644 --- a/lib/tools/emacs/erlang.el +++ b/lib/tools/emacs/erlang.el @@ -70,8 +70,8 @@ ;; `debug-on-error' to `t'. Repeat the error and enclose the debug ;; information in your bug-report. ;; -;; To set the variable you can use the following command: -;; M-x set-variable RET debug-on-error RET t RET +;; To toggle the variable you can use the following command: +;; M-x toggle-debug-on-error RET ;;; Code: (eval-when-compile (require 'cl)) @@ -971,7 +971,7 @@ resulting regexp is surrounded by \\_< and \\_>." (defvar erlang-defun-prompt-regexp (concat "^" erlang-atom-regexp "\\s *(") "Regexp which should match beginning of a clause.") -(defvar erlang-file-name-extension-regexp "\\.[eh]rl$" +(defvar erlang-file-name-extension-regexp "\\.erl$" "*Regexp which should match an Erlang file name. This regexp is used when an Erlang module name is extracted from the @@ -1068,8 +1068,14 @@ behaviour.") "Font lock keyword highlighting a function header.") (defface erlang-font-lock-exported-function-name-face - '((default (:inherit font-lock-function-name-face))) - "Face used for highlighting exported functions.") + (if (featurep 'xemacs) + (progn + (require 'font-lock) + `((t (:foreground ,(face-foreground 'font-lock-function-name-face)) + (:background ,(face-background 'font-lock-function-name-face))))) + '((default (:inherit font-lock-function-name-face)))) + "Face used for highlighting exported functions." + :group 'erlang) (defvar erlang-font-lock-exported-function-name-face 'erlang-font-lock-exported-function-name-face) @@ -1285,6 +1291,11 @@ Unfortunately, XEmacs hasn't got support for a special Font Lock syntax table. The effect is that `apply' in the atom `foo_apply' will be highlighted as a bif.") +(defvar erlang-replace-etags-tags-completion-table nil + "Internal flag used by advice `erlang-replace-tags-table'. +This is non-nil when `etags-tags-completion-table' should be +replaced by `erlang-etags-tags-completion-table'.") + ;;; Avoid errors while compiling this file. @@ -1338,11 +1349,19 @@ Lock syntax table. The effect is that `apply' in the atom (defun erlang-version () "Return the current version of Erlang mode." (interactive) - (if (interactive-p) + (if (erlang-interactive-p) (message "Erlang mode version %s, written by Anders Lindgren" erlang-version)) erlang-version) +(defun erlang-interactive-p () + (if (fboundp 'called-interactively-p) + (called-interactively-p 'interactive) + (funcall (symbol-function 'interactive-p)))) + +(unless (fboundp 'prog-mode) + (defun prog-mode () + (use-local-map (make-keymap)))) ;;;###autoload (define-derived-mode erlang-mode prog-mode "Erlang" @@ -1415,7 +1434,9 @@ Other commands: (erlang-tags-init) (erlang-font-lock-init) (erlang-skel-init) - (tempo-use-tag-list 'erlang-tempo-tags) + (when (fboundp 'tempo-use-tag-list) + (tempo-use-tag-list 'erlang-tempo-tags)) + (run-hooks 'erlang-mode-hook) (if (zerop (buffer-size)) (run-hooks 'erlang-new-file-hook))) @@ -1536,7 +1557,9 @@ Other commands: table))) (set (make-local-variable 'font-lock-syntax-table) erlang-font-lock-syntax-table) - (set (make-local-variable 'font-lock-beginning-of-syntax-function) + (set (make-local-variable (if (boundp 'syntax-begin-function) + 'syntax-begin-function + 'font-lock-beginning-of-syntax-function)) 'erlang-beginning-of-clause) (make-local-variable 'font-lock-keywords) (let ((level (cond ((boundp 'font-lock-maximum-decoration) @@ -2244,6 +2267,7 @@ mode with the command `M-x erlang-mode RET'."))) ;; This code is based on the package `tempo' which is part of modern ;; Emacsen. (GNU Emacs 19.25 (?) and XEmacs 19.14.) +(defvar erlang-skel) (defun erlang-skel-init () "Generate the skeleton functions and menu items. The variable `erlang-skel' contains the name and descriptions of @@ -2970,8 +2994,9 @@ Return nil if inside string, t if in a comment." (current-column))) ;; Type and Spec indentation ((eq (car stack-top) '::) - (if (looking-at "}") - ;; Closing record definition with types + (if (looking-at "[},)]") + ;; Closing function spec, record definition with types, + ;; or a comma at the start of the line ;; pop stack and recurse (erlang-calculate-stack-indent indent-point (cons (erlang-pop stack) (cdr state))) @@ -3204,18 +3229,16 @@ With argument, do this that many times." (interactive "p") (or arg (setq arg 1)) (while (and (looking-at "[ \t]*[%\n]") - (zerop (forward-line 1)))) + (zerop (forward-line 1)))) ;; Move to the next clause. (erlang-beginning-of-clause (- arg)) (beginning-of-line);; Just to be sure... (let ((continue t)) (while (and (not (bobp)) continue) (forward-line -1) - (skip-chars-forward " \t") - (if (looking-at "[%\n]") - nil - (end-of-line) - (setq continue nil))))) + (unless (looking-at "[ \t]*[%\n]") + (end-of-line) + (setq continue nil))))) (defun erlang-mark-clause () "Put mark at end of clause, point at beginning." @@ -3742,6 +3765,12 @@ In the future the list may contain more elements." (if (assoc fk (cdr (car imports))) (setq mod (car (car imports))) (setq imports (cdr imports)))) + (cond ((eq (preceding-char) ?#) + (setq fk (concat "-record(" fk))) + ((eq (preceding-char) ??) + (setq fk (concat "-define(" fk))) + ((and (null mod) (not (member fk erlang-int-bifs))) + (setq mod (erlang-get-module)))) (setq res (list mod fk))))) (store-match-data md) res))) @@ -3812,20 +3841,19 @@ exported function." (defun erlang-check-module-name-init () "Initialize the functionality to compare file and module names. -Unless we have `before-save-hook', we redefine the function +Unless we have `before-save-hook', we advice the function `set-visited-file-name' since it clears the variable -`local-write-file-hooks'. The original function definition is -stored in `erlang-orig-set-visited-file-name'." +`local-write-file-hooks'." (if (boundp 'before-save-hook) - ;; If we have that, `make-local-hook' is obsolete. (add-hook 'before-save-hook 'erlang-check-module-name nil t) (require 'advice) - (unless (ad-advised-definition-p 'set-visited-file-name) - (defadvice set-visited-file-name (after erlang-set-visited-file-name - activate) - (if (eq major-mode 'erlang-mode) - (add-hook 'local-write-file-hooks 'erlang-check-module-name)))) - (add-hook 'local-write-file-hooks 'erlang-check-module-name))) + (when (fboundp 'ad-advised-definition-p) + (unless (ad-advised-definition-p 'set-visited-file-name) + (defadvice set-visited-file-name (after erlang-set-visited-file-name + activate) + (if (eq major-mode 'erlang-mode) + (add-hook 'local-write-file-hooks 'erlang-check-module-name)))) + (add-hook 'local-write-file-hooks 'erlang-check-module-name)))) (defun erlang-check-module-name () @@ -3902,7 +3930,7 @@ non-whitespace characters following the point on the current line." (newline) (if (condition-case nil (progn (erlang-indent-line) t) - (error (if (bolp) (delete-backward-char 1)))) + (error (if (bolp) (delete-char -1)))) (if (not (bolp)) (save-excursion (insert " ->")) @@ -3914,7 +3942,7 @@ non-whitespace characters following the point on the current line." (beginning-of-line) (newline erlang-electric-semicolon-insert-blank-lines)))) - (error (if (bolp) (delete-backward-char 1)))))))) + (error (if (bolp) (delete-char -1)))))))) (defun erlang-electric-comma (&optional arg) @@ -3944,7 +3972,7 @@ non-whitespace characters following the point on the current line." (newline) (condition-case nil (erlang-indent-line) - (error (if (bolp) (delete-backward-char 1)))))) + (error (if (bolp) (delete-char -1)))))) (defun erlang-electric-lt (&optional arg) "Insert a less-than sign, and optionally mark it as an open paren." @@ -4030,7 +4058,7 @@ non-whitespace characters following the point on the current line." (newline) (condition-case nil (erlang-indent-line) - (error (if (bolp) (delete-backward-char 1)))))) + (error (if (bolp) (delete-char -1)))))) ;; Then it's just a plain greater-than. (t @@ -4070,7 +4098,7 @@ After being split/merged into `erlang-after-arrow' and (newline) (condition-case nil (erlang-indent-line) - (error (if (bolp) (delete-backward-char 1))))))) + (error (if (bolp) (delete-char -1))))))) (defun erlang-electric-newline (&optional arg) @@ -4318,11 +4346,6 @@ as on the old form `tag'. In the completion list, `module:tag' and `module:' shows up. -Call this function from an appropriate init file, or add it to -Erlang mode hook with the commands: - (add-hook 'erlang-mode-hook 'erlang-tags-init) - (add-hook 'erlang-shell-mode-hook 'erlang-tags-init) - This function only works under Emacs 18 and Emacs 19. Currently, It is not implemented under XEmacs. (Hint: The Emacs 19 etags module works under XEmacs.)" @@ -4333,12 +4356,17 @@ works under XEmacs.)" (setq erlang-tags-installed t)) (t (require 'etags) - ;; Test on a function available in the Emacs 19 version - ;; of tags but not in the XEmacs version. - (if (not (fboundp 'find-tag-noselect)) - () - (erlang-tags-define-keys (current-local-map)) - (setq erlang-tags-installed t))))) + (set (make-local-variable 'find-tag-default-function) + 'erlang-find-tag-for-completion) + (if (>= emacs-major-version 25) + (add-hook 'xref-backend-functions + #'erlang-etags--xref-backend nil t) + ;; Test on a function available in the Emacs 19 version + ;; of tags but not in the XEmacs version. + (when (fboundp 'find-tag-noselect) + (erlang-tags-define-keys (current-local-map)) + (setq erlang-tags-installed t)))))) + ;; Set all keys bound to `find-tag' et.al. in the global map and the @@ -4363,10 +4391,6 @@ works under XEmacs.)" (erlang-menu-init)) -;; There exists a variable `find-tag-default-function'. It is not used -;; since `complete-tag' uses it to get current word under point. In that -;; situation we don't want the module to be prepended. - (defun erlang-find-tag-default () "Return the default tag. Search `-import' list of imported functions. @@ -4546,6 +4570,11 @@ Tags can be given on the forms `tag', `module:', `module:tag'." (current-buffer))) ; Return the new buffer. + + + + + ;; Process interactive arguments for erlang-find-tag-*. ;; ;; Negative arguments work only for `etags', not `tags'. This is not @@ -4639,9 +4668,25 @@ Tags can be given on the forms `tag', `module:', `module:tag'." (set (make-local-variable 'find-tag-regexp-search-function) 'erlang-tags-regexp-search-forward) (set (make-local-variable 'find-tag-tag-order) - '(erlang-tag-match-module-p)) + (mapcar #'erlang-make-order-function-aware-of-modules + erlang-tags-orig-tag-order)) (set (make-local-variable 'find-tag-regexp-tag-order) - '(erlang-tag-match-module-regexp-p)))) + (mapcar #'erlang-make-order-function-aware-of-modules + erlang-tags-orig-regexp-tag-order)))) + +(defun erlang-make-order-function-aware-of-modules (f) + `(lambda (tag) + (let (mod) + (when (string-match ":" tag) + (setq mod (substring tag 0 (match-beginning 0))) + (setq tag (substring tag (match-end 0) nil))) + (and (funcall ',f tag) + (or (null mod) + (erlang-tag-at-point-match-module-p mod)))))) + +(defun erlang-tag-at-point-match-module-p (mod) + (string-equal mod (erlang-get-module-from-file-name + (funcall (symbol-function 'file-of-tag))))) (defun erlang-tags-remove-module-check () @@ -4718,60 +4763,32 @@ for a tag on the form `module:tag'." (funcall erlang-tags-orig-regexp-search-function tag bound noerror count))) - -;; t if point is at a tag line that matches TAG, containing -;; module information. Assumes that all other order functions -;; are stored in `erlang-tags-orig-[regex]-tag-order'. - -(defun erlang-tag-match-module-p (tag) - (erlang-tag-match-module-common-p tag erlang-tags-orig-tag-order)) - -(defun erlang-tag-match-module-regexp-p (tag) - (erlang-tag-match-module-common-p tag erlang-tags-orig-regexp-tag-order)) - -(defun erlang-tag-match-module-common-p (tag order) - (let ((mod nil) - (found nil)) - (if (string-match ":" tag) - (progn - (setq mod (substring tag 0 (match-beginning 0))) - (setq tag (substring tag (match-end 0) nil)))) - (while (and order (not found)) - (setq found - (and (not (memq (car order) - '(erlang-tag-match-module-p - erlang-tag-match-module-regexp-p))) - (funcall (car order) tag))) - (setq order (cdr order))) - (and found - (or (null mod) - (string= mod (erlang-get-module-from-file-name - (file-of-tag))))))) - - ;;; Tags completion, Emacs 19 `etags' specific. ;;; ;;; The basic idea is to create a second completion table `erlang-tags- ;;; completion-table' containing all normal tags plus tags on the form -;;; `module:tag'. +;;; `module:tag' and `module:'. - -(when (and (fboundp 'etags-tags-completion-table) +(when (and (locate-library "etags") + (require 'etags) + (fboundp 'etags-tags-completion-table) (fboundp 'tags-lazy-completion-table)) ; Emacs 23.1+ (if (fboundp 'advice-add) ;; Emacs 24.4+ (advice-add 'etags-tags-completion-table :around - (lambda (oldfun) - (if (eq find-tag-default-function 'erlang-find-tag-for-completion) - (erlang-etags-tags-completion-table) - (funcall oldfun))) - (list :name 'erlang-replace-tags-table)) + #'erlang-etags-tags-completion-table-advice) ;; Emacs 23.1-24.3 - (defadvice etags-tags-completion-table (around erlang-replace-tags-table activate) - (if (eq find-tag-default-function 'erlang-find-tag-for-completion) + (defadvice etags-tags-completion-table (around + erlang-replace-tags-table + activate) + (if erlang-replace-etags-tags-completion-table (setq ad-return-value (erlang-etags-tags-completion-table)) ad-do-it)))) +(defun erlang-etags-tags-completion-table-advice (oldfun) + (if erlang-replace-etags-tags-completion-table + (erlang-etags-tags-completion-table) + (funcall oldfun))) (defun erlang-complete-tag () "Perform tags completion on the text around point. @@ -4783,26 +4800,21 @@ about Erlang modules." (condition-case nil (require 'etags) (error nil)) - (cond ((and erlang-tags-installed - (fboundp 'etags-tags-completion-table) + (cond ((and (fboundp 'etags-tags-completion-table) (fboundp 'tags-lazy-completion-table)) ; Emacs 23.1+ - ;; This depends on the advice called erlang-replace-tags-table - ;; above. It is not enough to let-bind - ;; tags-completion-table-function since that will not override - ;; the buffer-local value in the TAGS buffer. - (let ((find-tag-default-function 'erlang-find-tag-for-completion)) + (let ((erlang-replace-etags-tags-completion-table t)) (complete-tag))) ((and erlang-tags-installed - (fboundp 'complete-tag) - (fboundp 'tags-complete-tag)) ; Emacs 19 + (fboundp 'complete-tag) + (fboundp 'tags-complete-tag)) ; Emacs 19-22 (let ((orig-tags-complete-tag (symbol-function 'tags-complete-tag))) (fset 'tags-complete-tag (symbol-function 'erlang-tags-complete-tag)) (unwind-protect - (funcall (symbol-function 'complete-tag)) + (complete-tag) (fset 'tags-complete-tag orig-tags-complete-tag)))) ((fboundp 'complete-tag) ; Emacs 19 - (funcall (symbol-function 'complete-tag))) + (complete-tag)) ((fboundp 'tag-complete-symbol) ; XEmacs (funcall (symbol-function 'tag-complete-symbol))) (t @@ -4817,19 +4829,22 @@ about Erlang modules." (buffer-substring-no-properties start (point))))) - ;; Based on `tags-complete-tag', but this one uses ;; `erlang-tags-completion-table' instead of `tags-completion-table'. ;; ;; This is the entry-point called by system function `completing-read'. +;; +;; Used for minibuffer completion in Emacs 19-24 and completion in +;; erlang buffers in Emacs 19-22. (defun erlang-tags-complete-tag (string predicate what) - (save-excursion - ;; If we need to ask for the tag table, allow that. - (let ((enable-recursive-minibuffers t)) - (visit-tags-table-buffer)) + (with-current-buffer (window-buffer (minibuffer-selected-window)) + (save-excursion + ;; If we need to ask for the tag table, allow that. + (let ((enable-recursive-minibuffers t)) + (visit-tags-table-buffer)) (if (eq what t) (all-completions string (erlang-tags-completion-table) predicate) - (try-completion string (erlang-tags-completion-table) predicate)))) + (try-completion string (erlang-tags-completion-table) predicate))))) ;; `tags-completion-table' calls itself recursively, make it @@ -4847,7 +4862,6 @@ about Erlang modules." (fset 'tags-completion-table erlang-tags-orig-completion-table))) - (defun erlang-tags-completion-table-1 () (make-local-variable 'erlang-tags-completion-table) (or erlang-tags-completion-table @@ -4858,59 +4872,190 @@ about Erlang modules." (setq erlang-tags-completion-table tags-completion-table)))) + +;; Emacs 25 expects this function to return a list (and it is ok for +;; it to include duplicates). Older emacsen expects an obarray. +(defun erlang-etags-tags-completion-table () + (if (>= emacs-major-version 25) + (erlang-etags-tags-completion-table-list) + (let ((obarray (make-vector 511 0))) + (dolist (tag (erlang-etags-tags-completion-table-list)) + (intern tag obarray)) + obarray))) + ;; Based on `etags-tags-completion-table'. The difference is that we -;; add three symbols to the vector, the tag, module: and module:tag. +;; add three strings to the list, the tag, module: and module:tag. ;; The module is extracted from the file name of a tag. (This one ;; only works if we are looking at an `etags' file. However, this is ;; the only format supported by Emacs, so far.) -(defun erlang-etags-tags-completion-table () - (let ((table (make-vector 511 0)) - (file nil) - (progress-reporter - (when (fboundp 'make-progress-reporter) - (make-progress-reporter - (format "Making erlang tags completion table for %s..." buffer-file-name) - (point-min) (point-max))))) +(defun erlang-etags-tags-completion-table-list () + (let ((progress-reporter + (make-progress-reporter + (format "Making tags completion table for %s..." buffer-file-name) + (point-min) (point-max))) + table module) (save-excursion (goto-char (point-min)) - ;; This monster regexp matches an etags tag line. - ;; \1 is the string to match; - ;; \2 is not interesting; - ;; \3 is the guessed tag name; XXX guess should be better eg DEFUN - ;; \4 is not interesting; - ;; \5 is the explicitly-specified tag name. - ;; \6 is the line to start searching at; - ;; \7 is the char to start searching at. (while (progn - (while (and - (eq (following-char) ?\f) - (looking-at "\f\n\\([^,\n]*\\),.*\n")) - (setq file (buffer-substring - (match-beginning 1) (match-end 1))) - (goto-char (match-end 0))) + (while (and (eq (following-char) ?\f) + (looking-at "\f\n\\([^,\n]*\\),.*\n")) + (let ((file (buffer-substring (match-beginning 1) + (match-end 1)))) + (setq module (erlang-get-module-from-file-name file)) + (when module + (push (concat module ":") table) + (push (concat module ":module_info") table)) + (forward-line 2))) + ;; This regexp matches an explicit tag name or the + ;; place where it would start. (re-search-forward - "\ -^\\(\\([^\177]+[^-a-zA-Z0-9_$\177]+\\)?\\([-a-zA-Z0-9_$?:]+\\)\ -\[^-a-zA-Z0-9_$?:\177]*\\)\177\\(\\([^\n\001]+\\)\001\\)?\ -\\([0-9]+\\)?,\\([0-9]+\\)?\n" + "[\f\t\n\r()=,; ]?\177\\\(?:\\([^\n\001]+\\)\001\\)?" nil t)) - (let ((tag (if (match-beginning 5) + (let ((tag (if (match-beginning 1) ;; There is an explicit tag name. - (buffer-substring (match-beginning 5) (match-end 5)) - ;; No explicit tag name. Best guess. - (buffer-substring (match-beginning 3) (match-end 3)))) - (module (and file - (erlang-get-module-from-file-name file)))) - (intern tag table) + (buffer-substring (match-beginning 1) (match-end 1)) + ;; No explicit tag name. Backtrack a little, + ;; and look for the implicit one. + (goto-char (match-beginning 0)) + (skip-chars-backward "^\f\t\n\r()=,; ") + (buffer-substring (point) (match-beginning 0))))) + (forward-line 1) + (push tag table) (when (stringp module) - (intern (concat module ":" tag) table) - ;; Only the first ones will be stored in the table. - (intern (concat module ":") table) - (intern (concat module ":module_info") table)) - (when progress-reporter - (progress-reporter-update progress-reporter (point)))))) + (push (concat module ":" tag) table)) + (progress-reporter-update progress-reporter (point))))) table)) + + + +;;; Xref backend erlang-etags + +;; In GNU Emacs 25 xref was introduced. It is a framework for cross +;; referencing commands, in particular commands for finding +;; definitions. It does not replace etags. It rather resides on top +;; of it and provides user-friendly commands. The idea is that the +;; user commands should be the same regardless of what backend does +;; the actual finding of definitions. + +;; The backend below is a wrapper around the built-in etags backend. +;; It adds awareness of the module:tag syntax in a similar way that is +;; done above for the old etags commands. + + +(defun erlang-etags--xref-backend () 'erlang-etags) + +(defun erlang-soft-require (feature) + (when (locate-library (symbol-name feature)) + (require feature))) + +(and (erlang-soft-require 'xref) + (erlang-soft-require 'cl-generic) + ;; The purpose of using eval here is to avoid compilation + ;; warnings in emacsen without cl-defmethod. + (eval + '(progn + (cl-defmethod xref-backend-identifier-at-point + ((_backend (eql erlang-etags))) + (erlang-find-tag-default)) + + (cl-defmethod xref-backend-definitions + ((_backend (eql erlang-etags)) identifier) + (erlang-xref-find-definitions identifier)) + + (cl-defmethod xref-backend-apropos + ((_backend (eql erlang-etags)) identifier) + (erlang-xref-find-definitions identifier t)) + + (cl-defmethod xref-backend-identifier-completion-table + ((_backend (eql erlang-etags))) + (let ((erlang-replace-etags-tags-completion-table t)) + (tags-completion-table)))))) + + + + +(defun erlang-xref-find-definitions (identifier &optional is-regexp) + (let ((id-list (split-string identifier ":"))) + (cond + ;; Handle "tag" + ((null (cdr id-list)) + (erlang-xref-find-definitions-tag identifier is-regexp)) + ;; Handle "module:" + ((string-equal (cadr id-list) "") + (erlang-xref-find-definitions-module (car id-list))) + ;; Handle "module:tag" + (t + (erlang-xref-find-definitions-module-tag (car id-list) + (cadr id-list) + is-regexp))))) + +(defun erlang-xref-find-definitions-tag (tag is-regexp) + "Find all definitions of TAG and reorder them so that +definitions in the currently visited file comes first." + (when (fboundp 'etags--xref-find-definitions) + (let* ((current-file (and (buffer-file-name) + (file-truename (buffer-file-name)))) + (xrefs (etags--xref-find-definitions tag is-regexp)) + local-xrefs non-local-xrefs) + (while xrefs + (if (string-equal (erlang-xref-truename-file (car xrefs)) + current-file) + (push (car xrefs) local-xrefs) + (push (car xrefs) non-local-xrefs)) + (setq xrefs (cdr xrefs))) + (append (reverse local-xrefs) + (reverse non-local-xrefs))))) + +(defun erlang-xref-find-definitions-module (module) + (and (fboundp 'xref-make) + (fboundp 'xref-make-file-location) + (let* ((first-time t) + xrefs matching-files) + (save-excursion + (while (visit-tags-table-buffer (not first-time)) + (setq first-time nil) + (let ((files (tags-table-files))) + (while files + (let* ((file (car files)) + (m (erlang-get-module-from-file-name file))) + (when (and m (string-equal m module)) + (unless (member file matching-files) + (push file + matching-files) + (push (xref-make file + (xref-make-file-location file 1 0)) + xrefs)))) + (setq files (cdr files)))))) + (nreverse xrefs)))) + +(defun erlang-xref-find-definitions-module-tag (module tag is-regexp) + "Find all definitions of TAG and filter away definitions +outside of MODULE." + (when (fboundp 'etags--xref-find-definitions) + (let ((xrefs (etags--xref-find-definitions tag is-regexp)) + xrefs-in-module) + (while xrefs + (when (string-equal module (erlang-xref-module (car xrefs))) + (push (car xrefs) xrefs-in-module)) + (setq xrefs (cdr xrefs))) + xrefs-in-module))) + +(defun erlang-xref-module (xref) + (erlang-get-module-from-file-name (erlang-xref-file xref))) + +(defun erlang-xref-truename-file (xref) + (let ((file (erlang-xref-file xref))) + (and file + (file-truename file)))) + +(defun erlang-xref-file (xref) + (and (fboundp 'xref-location-group) + (fboundp 'xref-item-location) + (xref-location-group (xref-item-location xref)))) + + + ;;; ;;; Prepare for other methods to run an Erlang slave process. ;;; @@ -5060,19 +5205,10 @@ The following special commands are available: (setq comint-input-ignoredups t) (setq comint-scroll-show-maximum-output t) (setq comint-scroll-to-bottom-on-output t) - ;; In Emacs 19.30, `add-hook' has got a `local' flag, use it. If - ;; the call fails, just call the normal `add-hook'. - (condition-case nil - (progn - (add-hook 'comint-output-filter-functions - 'inferior-erlang-strip-delete nil t) - (add-hook 'comint-output-filter-functions - 'inferior-erlang-strip-ctrl-m nil t)) - (error - (funcall (symbol-function 'make-local-hook) - 'comint-output-filter-functions) ; obsolete as of Emacs 21.1 - (add-hook 'comint-output-filter-functions 'inferior-erlang-strip-delete) - (add-hook 'comint-output-filter-functions 'inferior-erlang-strip-ctrl-m))) + (add-hook 'comint-output-filter-functions + 'inferior-erlang-strip-delete nil t) + (add-hook 'comint-output-filter-functions + 'inferior-erlang-strip-ctrl-m nil t) ;; Some older versions of comint don't have an input ring. (if (fboundp 'comint-read-input-ring) (progn @@ -5098,6 +5234,7 @@ The following special commands are available: (define-key map [menu-bar compilation] (cons "Errors" compilation-menu-map))) map))))) + (erlang-tags-init) (run-hooks 'erlang-shell-mode-hook)) @@ -5309,8 +5446,7 @@ frame will become deselected before the next command." () (or (inferior-erlang-running-p) (error "No inferior Erlang shell is running")) - (save-excursion - (set-buffer inferior-erlang-buffer) + (with-current-buffer inferior-erlang-buffer (let ((msg nil)) (while (save-excursion (goto-char (process-mark inferior-erlang-process)) @@ -5330,8 +5466,7 @@ frame will become deselected before the next command." The empty command resembles hitting RET. This is useful in some situations, for instance if a crash or error report from sasl has been printed after the last prompt." - (save-excursion - (set-buffer inferior-erlang-buffer) + (with-current-buffer inferior-erlang-buffer (if (> (point-max) 1) ;; make sure we get a prompt if buffer contains data (if (save-excursion @@ -5397,7 +5532,7 @@ Return the position after the newly inserted command." (boundp 'comint-last-output-start)) (save-excursion (goto-char - (if (interactive-p) + (if (erlang-interactive-p) (symbol-value 'comint-last-input-end) (symbol-value 'comint-last-output-start))) (while (progn (skip-chars-forward "^\C-h") @@ -5416,7 +5551,7 @@ Return the position after the newly inserted command." (let ((pmark (process-mark (get-buffer-process (current-buffer))))) (save-excursion (goto-char - (if (interactive-p) + (if (erlang-interactive-p) (symbol-value 'comint-last-input-end) (symbol-value 'comint-last-output-start))) (while (re-search-forward "\r+$" pmark t) @@ -5443,23 +5578,21 @@ There exists two workarounds for this bug: (save-some-buffers) (inferior-erlang-prepare-for-input) (let* ((dir (inferior-erlang-compile-outdir)) -;;; (file (file-name-nondirectory (buffer-file-name))) (noext (substring (erlang-local-buffer-file-name) 0 -4)) (opts (append (list (cons 'outdir dir)) (if current-prefix-arg (list 'debug_info 'export_all)) erlang-compile-extra-opts)) end) - (save-excursion - (set-buffer inferior-erlang-buffer) - (compilation-forget-errors)) + (with-current-buffer inferior-erlang-buffer + (when (fboundp 'compilation-forget-errors) + (compilation-forget-errors))) (setq end (inferior-erlang-send-command (inferior-erlang-compute-compile-command noext opts) nil)) (sit-for 0) (inferior-erlang-wait-prompt) - (save-excursion - (set-buffer inferior-erlang-buffer) + (with-current-buffer inferior-erlang-buffer (setq compilation-error-list nil) (set-marker compilation-parsing-end end)) (setq compilation-last-buffer inferior-erlang-buffer))) @@ -5499,7 +5632,8 @@ unless the optional NO-DISPLAY is non-nil." (let ((ccfn erlang-compile-command-function-alist) (res (inferior-erlang-compute-erl-compile-command module-name opts)) ccfn-entry - done) + done + result) (if (not (null (erlang-local-buffer-file-name))) (while (and (not done) (not (null ccfn))) (setq ccfn-entry (car ccfn)) @@ -5580,31 +5714,29 @@ unless the optional NO-DISPLAY is non-nil." (defun inferior-erlang-format-comma-opts (opts) (if (null opts) "" - (concat ", " (inferior-erlang-format-opts opts)))) - -(defun inferior-erlang-format-opts (opts) - (concat "[" (inferior-erlang-string-join (mapcar 'inferior-erlang-format-opt - opts) - ", ") - "]")) + (concat ", " (inferior-erlang-format-opt opts)))) (defun inferior-erlang-format-opt (opt) (cond ((stringp opt) (concat "\"" opt "\"")) - ((atom opt) (format "%s" opt)) - ((consp opt) (concat "{" (inferior-erlang-string-join - (mapcar 'inferior-erlang-format-opt - (list (car opt) (cdr opt))) - ", ") - "}")) - (t (error (format "Unexpected opt %s" opt))))) - -(defun inferior-erlang-string-join (strs sep) - (let ((result (or (car strs) ""))) - (setq strs (cdr strs)) - (while strs - (setq result (concat result sep (car strs))) - (setq strs (cdr strs))) - result)) + ((vectorp opt) (inferior-erlang-tuple (append opt nil))) + ((atom opt) (format "%s" opt)) + ((consp opt) (if (listp (cdr opt)) + (inferior-erlang-list opt) + (inferior-erlang-tuple (list (car opt) (cdr opt))))) + (t (error "Unexpected erlang compile option %s" opt)))) + +(defun inferior-erlang-tuple (opts) + (concat "{" (mapconcat 'inferior-erlang-format-opt + opts + ", ") + "}")) + +(defun inferior-erlang-list (opts) + (concat "[" (mapconcat 'inferior-erlang-format-opt + opts + ", ") + "]")) + (defun erlang-local-buffer-file-name () ;; When editing a file remotely via tramp, @@ -5629,12 +5761,14 @@ unless the optional NO-DISPLAY is non-nil." (tramp-tramp-file-p (buffer-file-name)))) (defun erlang-tramp-get-localname () - (let ((tramp-info (tramp-dissect-file-name (buffer-file-name)))) - (if (fboundp 'tramp-file-name-localname) - (tramp-file-name-localname tramp-info) - ;; In old versions of tramp, it was `tramp-file-name-path' - ;; instead of the newer `tramp-file-name-localname' - (tramp-file-name-path tramp-info)))) + (when (fboundp 'tramp-dissect-file-name) + (let ((tramp-info (tramp-dissect-file-name (buffer-file-name)))) + (if (fboundp 'tramp-file-name-localname) + (tramp-file-name-localname tramp-info) + ;; In old versions of tramp, it was `tramp-file-name-path' + ;; instead of the newer `tramp-file-name-localname' + (when (fboundp 'tramp-file-name-path) + (tramp-file-name-path tramp-info)))))) ;; `next-error' only accepts buffers with major mode `compilation-mode' ;; or with the minor mode `compilation-minor-mode' activated. @@ -5651,16 +5785,14 @@ Capable of finding error messages in an inferior Erlang buffer." (and (boundp 'compilation-last-buffer) compilation-last-buffer)))) (if (and (bufferp buf) - (save-excursion - (set-buffer buf) + (with-current-buffer buf (and (eq major-mode 'erlang-shell-mode) (setq major-mode 'compilation-mode)))) (unwind-protect (progn (setq done t) (next-error argp)) - (save-excursion - (set-buffer buf) + (with-current-buffer buf (setq major-mode 'erlang-shell-mode)))) (or done (next-error argp)))) @@ -5763,7 +5895,7 @@ Simplified version of a combination `defalias' and `make-obsolete', it assumes that NEWDEF is loaded." (defalias sym (symbol-function newdef)) (if (fboundp 'make-obsolete) - (make-obsolete sym newdef))) + (make-obsolete sym newdef "long ago"))) (erlang-obsolete 'calculate-erlang-indent 'erlang-calculate-indent) @@ -5781,11 +5913,8 @@ it assumes that NEWDEF is loaded." (erlang-obsolete 'name-of-erlang-function 'erlang-name-of-function) -;; Fixme: shouldn't redefine `set-visited-file-name' anyhow -- see above. (defconst erlang-unload-hook (list (lambda () - (defalias 'set-visited-file-name - 'erlang-orig-set-visited-file-name) (when (featurep 'advice) (ad-unadvise 'Man-notify-when-ready) (ad-unadvise 'set-visited-file-name))))) |