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Merge branch 'TRY-better-inhibit-modification-hooks'

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João Távora 2011-10-09 17:51:15 +01:00
commit c213401bba
1 changed files with 39 additions and 34 deletions
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45
yasnippet.el
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@ -3006,8 +3006,7 @@ Also create some protection overlays"
;; primary field transform: first call to snippet transform ;; primary field transform: first call to snippet transform
(unless (yas/field-modified-p field) (unless (yas/field-modified-p field)
(if (yas/field-update-display field snippet) (if (yas/field-update-display field snippet)
(let ((inhibit-modification-hooks t)) (yas/update-mirrors snippet)
(yas/update-mirrors snippet))
(setf (yas/field-modified-p field) nil)))))) (setf (yas/field-modified-p field) nil))))))
(defun yas/prev-field () (defun yas/prev-field ()
@ -3041,6 +3040,12 @@ Also create some protection overlays"
;;; Some low level snippet-routines ;;; Some low level snippet-routines
(defmacro yas/inhibit-overlay-hooks (&rest body)
"Run BODY with `yas/inhibit-overlay-hooks' set to t."
(declare (indent 0))
`(let ((yas/inhibit-overlay-hooks t))
(progn ,@body)))
(defun yas/commit-snippet (snippet) (defun yas/commit-snippet (snippet)
"Commit SNIPPET, but leave point as it is. This renders the "Commit SNIPPET, but leave point as it is. This renders the
snippet as ordinary text. snippet as ordinary text.
@ -3061,7 +3066,7 @@ exiting the snippet."
(setq yas/snippet-end (overlay-end control-overlay)) (setq yas/snippet-end (overlay-end control-overlay))
(delete-overlay control-overlay)) (delete-overlay control-overlay))
(let ((inhibit-modification-hooks t)) (yas/inhibit-overlay-hooks
(when yas/active-field-overlay (when yas/active-field-overlay
(delete-overlay yas/active-field-overlay)) (delete-overlay yas/active-field-overlay))
(when yas/field-protection-overlays (when yas/field-protection-overlays
@ -3271,13 +3276,17 @@ Move the overlay, or create it if it does not exit."
(overlay-put yas/active-field-overlay 'insert-behind-hooks (overlay-put yas/active-field-overlay 'insert-behind-hooks
'(yas/on-field-overlay-modification)))) '(yas/on-field-overlay-modification))))
(defvar yas/inhibit-overlay-hooks nil
"Bind this temporarity to non-nil to prevent running `yas/on-*-modification'.")
(defun yas/on-field-overlay-modification (overlay after? beg end &optional length) (defun yas/on-field-overlay-modification (overlay after? beg end &optional length)
"Clears the field and updates mirrors, conditionally. "Clears the field and updates mirrors, conditionally.
Only clears the field if it hasn't been modified and it point it Only clears the field if it hasn't been modified and it point it
at field start. This hook doesn't do anything if an undo is in at field start. This hook doesn't do anything if an undo is in
progress." progress."
(unless (yas/undo-in-progress) (unless (or yas/inhibit-overlay-hooks
(yas/undo-in-progress))
(let* ((field (overlay-get overlay 'yas/field)) (let* ((field (overlay-get overlay 'yas/field))
(number (and field (yas/field-number field))) (number (and field (yas/field-number field)))
(snippet (overlay-get yas/active-field-overlay 'yas/snippet))) (snippet (overlay-get yas/active-field-overlay 'yas/snippet)))
@ -3326,7 +3335,7 @@ Move the overlays, or create them if they do not exit."
;; ;;
(when (< (buffer-size) end) (when (< (buffer-size) end)
(save-excursion (save-excursion
(let ((inhibit-modification-hooks t)) (yas/inhibit-overlay-hooks
(goto-char (point-max)) (goto-char (point-max))
(newline)))) (newline))))
;; go on to normal overlay creation/moving ;; go on to normal overlay creation/moving
@ -3357,10 +3366,11 @@ originated")
"Signals a snippet violation, then issues error. "Signals a snippet violation, then issues error.
The error should be ignored in `debug-ignored-errors'" The error should be ignored in `debug-ignored-errors'"
(unless yas/inhibit-overlay-hooks
(cond ((not (or after? (cond ((not (or after?
(yas/undo-in-progress))) (yas/undo-in-progress)))
(setq yas/protection-violation (point)) (setq yas/protection-violation (point))
(error "Exit the snippet first!")))) (error "Exit the snippet first!")))))
(add-to-list 'debug-ignored-errors "^Exit the snippet first!$") (add-to-list 'debug-ignored-errors "^Exit the snippet first!$")
@ -3435,21 +3445,20 @@ considered when expanding the snippet."
;; stacked expansion: also shoosh the overlay modification hooks ;; stacked expansion: also shoosh the overlay modification hooks
(save-restriction (save-restriction
(narrow-to-region start start) (narrow-to-region start start)
(let ((inhibit-modification-hooks t) (let ((buffer-undo-list t))
(buffer-undo-list t))
;; snippet creation might evaluate users elisp, which ;; snippet creation might evaluate users elisp, which
;; might generate errors, so we have to be ready to catch ;; might generate errors, so we have to be ready to catch
;; them mostly to make the undo information ;; them mostly to make the undo information
;; ;;
(setq yas/start-column (save-restriction (widen) (current-column))) (setq yas/start-column (save-restriction (widen) (current-column)))
(yas/inhibit-overlay-hooks
(setq snippet (setq snippet
(if expand-env (if expand-env
(eval `(let ,expand-env (eval `(let ,expand-env
(insert content) (insert content)
(yas/snippet-create (point-min) (point-max)))) (yas/snippet-create (point-min) (point-max))))
(insert content) (insert content)
(yas/snippet-create (point-min) (point-max)))))) (yas/snippet-create (point-min) (point-max)))))))
;; stacked-expansion: This checks for stacked expansion, save the ;; stacked-expansion: This checks for stacked expansion, save the
;; `yas/previous-active-field' and advance its boudary. ;; `yas/previous-active-field' and advance its boudary.
@ -4037,12 +4046,7 @@ When multiple expressions are found, only the last one counts."
(field (car fields))) (field (car fields)))
(while field (while field
(dolist (mirror (yas/field-mirrors field)) (dolist (mirror (yas/field-mirrors field))
;; stacked expansion: I added an `inhibit-modification-hooks' (let ((mirror-parent-field (yas/mirror-parent-field mirror)))
;; here, for safety, may need to remove if we the mechanism is
;; altered.
;;
(let ((inhibit-modification-hooks t)
(mirror-parent-field (yas/mirror-parent-field mirror)))
;; updatte this mirror ;; updatte this mirror
;; ;;
(yas/mirror-update-display mirror field) (yas/mirror-update-display mirror field)
@ -4072,7 +4076,8 @@ When multiple expressions are found, only the last one counts."
(not (string= reflection (buffer-substring-no-properties (yas/mirror-start mirror) (not (string= reflection (buffer-substring-no-properties (yas/mirror-start mirror)
(yas/mirror-end mirror))))) (yas/mirror-end mirror)))))
(goto-char (yas/mirror-start mirror)) (goto-char (yas/mirror-start mirror))
(insert reflection) (yas/inhibit-overlay-hooks
(insert reflection))
(if (> (yas/mirror-end mirror) (point)) (if (> (yas/mirror-end mirror) (point))
(delete-region (point) (yas/mirror-end mirror)) (delete-region (point) (yas/mirror-end mirror))
(set-marker (yas/mirror-end mirror) (point)) (set-marker (yas/mirror-end mirror) (point))
@ -4083,8 +4088,7 @@ When multiple expressions are found, only the last one counts."
(defun yas/field-update-display (field snippet) (defun yas/field-update-display (field snippet)
"Much like `yas/mirror-update-display', but for fields" "Much like `yas/mirror-update-display', but for fields"
(when (yas/field-transform field) (when (yas/field-transform field)
(let ((inhibit-modification-hooks t) (let ((transformed (and (not (eq (yas/field-number field) 0))
(transformed (and (not (eq (yas/field-number field) 0))
(yas/apply-transform field field))) (yas/apply-transform field field)))
(point (point))) (point (point)))
(when (and transformed (when (and transformed
@ -4092,12 +4096,13 @@ When multiple expressions are found, only the last one counts."
(yas/field-end field))))) (yas/field-end field)))))
(setf (yas/field-modified-p field) t) (setf (yas/field-modified-p field) t)
(goto-char (yas/field-start field)) (goto-char (yas/field-start field))
(yas/inhibit-overlay-hooks
(insert transformed) (insert transformed)
(if (> (yas/field-end field) (point)) (if (> (yas/field-end field) (point))
(delete-region (point) (yas/field-end field)) (delete-region (point) (yas/field-end field))
(set-marker (yas/field-end field) (point)) (set-marker (yas/field-end field) (point))
(yas/advance-start-maybe (yas/field-next field) (point))) (yas/advance-start-maybe (yas/field-next field) (point)))
t)))) t)))))
;;; Post-command hooks: ;;; Post-command hooks: