GNU bug report logs - #59498
29.0.50; c++-ts-mode get wrong-type-argument error when enabled

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From: Eason Huang <aqua0210 <at> foxmail.com>
To: Randy Taylor <dev <at> rjt.dev>
Cc: Yuan Fu <casouri <at> gmail.com>, 59498 <at> debbugs.gnu.org, Daniel Martín <mardani29 <at> yahoo.es>
Subject: bug#59498: 29.0.50; c++-ts-mode get wrong-type-argument error when enabled
Date: Fri, 25 Nov 2022 20:56:36 +0800

Randy Taylor <dev <at> rjt.dev> writes:

> On Wednesday, November 23rd, 2022 at 05:53, Eason Huang <aqua0210 <at> foxmail.com> wrote:
>
>>
>>
>> But when I try to indent code,
>> it will raise the error (Wrong type argument: stringp, nil) again.
>> It should be a different bug.
>>
>> Steps to reproduce:
>>
>> After the step 4, try to type the code as below:
>>
>> int main(){
>> <-- put you cursor at the first colum 1, and then hit TAB(indent-for-tab-command)
>>
>> }
>>
>> after you hit TAB at the above code, you will get the backtrace error as
>> below:
>>
>> Debugger entered--Lisp error: (wrong-type-argument stringp nil)
>> looking-at(nil t)
>> #f(compiled-function (&rest _) #<bytecode 0x18b0dfc57c56ebd8>)(nil #<treesit-node (compound_statement) in 11-15> 13)
>>
>> #f(compiled-function (fn) #<bytecode 0x188c898311f019af>)(#f(compiled-function (&rest _) #<bytecode 0x18b0dfc57c56ebd8>))
>>
>> mapcar(#f(compiled-function (fn) #<bytecode 0x188c898311f019af>)
>> (#f(compiled-function (n parent &rest _) #<bytecode
>> 0x149caa867664fee9>) #f(compiled-function (&rest _) #<bytecode
>> 0x18b0dfc57c56ebd8>)))
>>
>> #f(compiled-function (node parent bol &rest _) #<bytecode -0xb869f433d8fc770>)(nil #<treesit-node (compound_statement) in 11-15> 13)
>>
>> treesit--simple-indent-eval(((and (parent-is "comment") comment-end) nil #<treesit-node (compound_statement) in 11-15> 13))
>>
>> treesit-simple-indent(nil #<treesit-node (compound_statement) in 11-15> 13)
>>
>> treesit--indent-1()
>> treesit-indent()
>> indent-according-to-mode()
>> electric-indent-post-self-insert-function()
>> newline(nil 1)
>> funcall-interactively(newline nil 1)
>> command-execute(newline)
>>
>>
>> --
>> Eason Huang
>>
>
> The attached patch fixes it for me.
>
>

Hi Randy,

Thanks for your patch, I tested on macOS 13.0.1. And I can confirm that it
fixes the issue of indentation.

Hope it can be merged to master.


-- 
Eason Huang

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