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Fix bug#16116

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* lisp/emacs-lisp/smie.el (smie-indent--rule): Extract `smie-indent--rule-1'.
(smie-indent-close): Call `smie-indent--rule-1' with METHOD
:close-all, to see which indentation method to use.
(smie-rules-function): Document the method :close-all.

* test/indent/ruby.rb: Update examples according to the change
in `smie-indent-close'.
This commit is contained in:
Dmitry Gutov 2013-12-17 03:31:55 +02:00
parent 1c4b1e6107
commit 5556c0cef1
4 changed files with 35 additions and 15 deletions
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29
lisp/emacs-lisp/smie.el
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@ -1135,6 +1135,10 @@ METHOD can be:
- :list-intro, in which case ARG is a token and the function should return
non-nil if TOKEN is followed by a list of expressions (not separated by any
token) rather than an expression.
- :close-all, in which case ARG is a close-paren token at indentation and
the function should return non-nil if it should be aligned with the opener
of the last close-paren token on the same line, if there are multiple.
Otherwise, it will be aligned with its own opener.
When ARG is a token, the function is called with point just before that token.
A return value of nil always means to fallback on the default behavior, so the
@ -1316,8 +1320,8 @@ Only meaningful when called from within `smie-rules-function'."
(defun smie-indent--rule (method token
;; FIXME: Too many parameters.
&optional after parent base-pos)
"Compute indentation column according to `indent-rule-functions'.
METHOD and TOKEN are passed to `indent-rule-functions'.
"Compute indentation column according to `smie-rules-function'.
METHOD and TOKEN are passed to `smie-rules-function'.
AFTER is the position after TOKEN, if known.
PARENT is the parent info returned by `smie-backward-sexp', if known.
BASE-POS is the position relative to which offsets should be applied."
@ -1330,11 +1334,7 @@ BASE-POS is the position relative to which offsets should be applied."
;; - :after tok, where
;; ; after is set; parent=nil; base-pos=point;
(save-excursion
(let ((offset
(let ((smie--parent parent)
(smie--token token)
(smie--after after))
(funcall smie-rules-function method token))))
(let ((offset (smie-indent--rule-1 method token after parent)))
(cond
((not offset) nil)
((eq (car-safe offset) 'column) (cdr offset))
@ -1355,6 +1355,12 @@ BASE-POS is the position relative to which offsets should be applied."
(smie-indent-virtual) (current-column)))))
(t (error "Unknown indentation offset %s" offset))))))
(defun smie-indent--rule-1 (method token &optional after parent)
(let ((smie--parent parent)
(smie--token token)
(smie--after after))
(funcall smie-rules-function method token)))
(defun smie-indent-forward-token ()
"Skip token forward and return it, along with its levels."
(let ((tok (funcall smie-forward-token-function)))
@ -1423,8 +1429,13 @@ in order to figure out the indentation of some other (further down) point."
(save-excursion
;; (forward-comment (point-max))
(when (looking-at "\\s)")
(while (not (zerop (skip-syntax-forward ")")))
(skip-chars-forward " \t"))
(if (smie-indent--rule-1 :close-all
(buffer-substring-no-properties
(point) (1+ (point)))
(1+ (point)))
(while (not (zerop (skip-syntax-forward ")")))
(skip-chars-forward " \t"))
(forward-char 1))
(condition-case nil
(progn
(backward-sexp 1)