From: Wilhelm Kirschbaum <wilhelm@floatpays.co.za>
To: Yuan Fu <casouri@gmail.com>
Cc: 58711@debbugs.gnu.org
Subject: bug#58711: Treesit hangs when calling treesit-search-forward
Date: Thu, 10 Nov 2022 21:32:56 +0200 [thread overview]
Message-ID: <CAJbepr8ac81yzpBWpanuehFHrR6W_sUQEU_KXuyeEhkBkbwFqg@mail.gmail.com> (raw)
In-Reply-To: <CAJbepr-3k83dvXjvzJ+fHVsFt=DKhMu08sGmxUGQp=UBu-B9Cw@mail.gmail.com>
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Sorry, I see something like this makes sense and is not the prev-sibling
issue.
(defun heex--treesit-backward-sexp ()
"Forward sexp for Heex using treesit."
(let* ((node (treesit-search-forward
(treesit-node-at (point))
(rx (or "end_tag" "end_component" "end_slot"))
t))
(sibling (treesit-node-prev-sibling node)))
(when sibling
(goto-char (treesit-node-start sibling)))))
Just need to handle the outermost (fragment peace and should work then.
Thanks for the help.
On Thu, 10 Nov 2022 at 21:05, Wilhelm Kirschbaum <wilhelm@floatpays.co.za>
wrote:
> Full implementation here:
> https://github.com/wkirschbaum/elixir-mode/blob/main/heex-mode.el
>
> On Thu, 10 Nov 2022 at 21:03, Wilhelm Kirschbaum <wilhelm@floatpays.co.za>
> wrote:
>
>> forward-sexp works well with the below code, but when calling
>> treesit-node-prev-sibling it will traverse up the list, which is then
>> breaking backward-up-list when defining forward-sexp in the major mode.
>>
>> (defun heex--treesit-largest-node-at-point ()
>> "Find the largest node at point."
>> (save-excursion
>> (forward-comment (point-max))
>> (let ((node-list
>> (cl-loop for node = (treesit-node-at (point))
>> then (treesit-node-parent node)
>> while node
>> if (eq (treesit-node-start node)
>> (point))
>> collect node)))
>> (car (last node-list)))))
>>
>> (defun heex--treesit-backward-sexp ()
>> "Forward sexp for Heex using treesit."
>> (let* ((largest-node (heex--treesit-largest-node-at-point))
>> (sibling (treesit-node-prev-sibling largest-node)))
>> (when sibling
>> (goto-char (treesit-node-start sibling)))))
>>
>> (defun heex--treesit-forward-sexp ()
>> "Forward sexp for Heex using treesit."
>> (let* ((largest-node (heex--treesit-largest-node-at-point))
>> (sibling (treesit-node-next-sibling largest-node)))
>> (when sibling
>> (goto-char (treesit-node-start sibling))
>> (forward-comment (- (point-max))))))
>>
>> On Thu, 10 Nov 2022 at 10:14, Yuan Fu <casouri@gmail.com> wrote:
>>
>>>
>>>
>>> > On Nov 9, 2022, at 10:44 PM, Wilhelm Kirschbaum <
>>> wilhelm@floatpays.co.za> wrote:
>>> >
>>> > I finally had some time to have a look. I don't see any more issues,
>>> thank you for the fantastic work on this. The defun-type-regexp is not
>>> enough to identify a defun in elixir this is the query I am using currently:
>>> >
>>> > (defvar elixir--treesit-query-defun
>>> > (let ((query `((call
>>> > target: (identifier) @type
>>> > (arguments
>>> > [
>>> > (alias) @name
>>> > (identifier) @name
>>> > (call target: (identifier)) @name
>>> > (binary_operator
>>> > left: (call target: (identifier)) @name
>>> > operator: "when")
>>> > ])
>>> > (:match ,elixir--definition-keywords-re @type)
>>> > ))))
>>> > (treesit-query-compile 'elixir query)))
>>> >
>>> > Regex will work in most cases I guess, but does not really deal with
>>> more complex queries for more complex cases like in elixir as there is not
>>> one type which is always the defun. elixir relies heavily on macros and
>>> different defun macros can be defined on the fly.
>>>
>>> You can try the following procedure: use a regex to find the
>>> next/previous call, then perform some check on whether it’s indeed a defun,
>>> if not, keep searching for the next/previous call.
>>>
>>>
>>> > Maybe if there is an option for using either a regex or a function?
>>>
>>> Yes, instead of a regex you can pass a predicate function.
>>>
>>> >
>>> > I am also not sure how forward-sexp can work with the current
>>> treesit-search-forward-goto function as it does not take into consideration
>>> the level. Is there perhaps a way to move forward/backward, but do not jump
>>> to parents or children?
>>>
>>> If you want to move in the same level, perhaps you can use
>>> treesit-next/prev/sibling?
>>>
>>> Yuan
>>
>>
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next prev parent reply other threads:[~2022-11-10 19:32 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-22 9:53 bug#58711: Treesit hangs when calling treesit-search-forward Wilhelm Kirschbaum
2022-10-22 10:26 ` bug#58711: The full tree-sitter parse output Wilhelm Kirschbaum
2022-10-23 6:42 ` bug#58711: Treesit hangs when calling treesit-search-forward Yuan Fu
2022-10-23 23:20 ` Yuan Fu
2022-10-24 17:06 ` Wilhelm Hugo Kirschbaum
2022-10-24 20:19 ` Yuan Fu
2022-11-10 6:44 ` Wilhelm Kirschbaum
2022-11-10 8:14 ` Yuan Fu
2022-11-10 19:03 ` Wilhelm Kirschbaum
2022-11-10 19:05 ` Wilhelm Kirschbaum
2022-11-10 19:32 ` Wilhelm Kirschbaum [this message]
2022-11-10 20:43 ` Wilhelm Kirschbaum
2022-11-10 22:07 ` Yuan Fu
2022-11-11 6:30 ` Wilhelm Kirschbaum
2022-11-14 6:32 ` Wilhelm Kirschbaum
2022-11-14 8:44 ` Yuan Fu
2022-11-14 10:03 ` Wilhelm Kirschbaum
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