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bug#39977: 28.0.50; Unhelpful stack trace
From: |
martin rudalics |
Subject: |
bug#39977: 28.0.50; Unhelpful stack trace |
Date: |
Sat, 21 Mar 2020 10:32:24 +0100 |
>> I'm afraid that we already might mishandle some of those simple cases.
>
> That just makes my point stronger, doesn't it?
Not really. It's easy for delete_frame to refuse deleting a frame right
at the beginning. But once it has accepted a deletion, it might become
hard to deal with all the consequences.
>> > The problem is how to do this without breaking legitimate code. For
>> > example, changing the window configuration temporarily, then changing
>> > it back is quite legitimate,
>>
>> Right in the middle of redisplay, while constructing the mode line or
>> the title format?
>
> Why not? As long as things are back as they were by the time :eval
> returns, I see no reason to disallow such code.
Such a change in the window configuration would take place in a state
where certain variables have temporary settings only. Selected frame,
selected window and current buffer have been set by redisplay in a fast,
improvised manner. I would never trust the outcome of save_window_save
or 'set-window-configuration' in such a state.
> No, they are there in cases where we simply don't know how to
> continue.
If that's the reason, then SELECTED_FRAME can easily set selected_frame
to some live frame and continue.
martin
- bug#39977: 28.0.50; Unhelpful stack trace, (continued)
- bug#39977: 28.0.50; Unhelpful stack trace, martin rudalics, 2020/03/17
- bug#39977: 28.0.50; Unhelpful stack trace, Eli Zaretskii, 2020/03/17
- bug#39977: 28.0.50; Unhelpful stack trace, martin rudalics, 2020/03/17
- bug#39977: 28.0.50; Unhelpful stack trace, Eli Zaretskii, 2020/03/17
- bug#39977: 28.0.50; Unhelpful stack trace, martin rudalics, 2020/03/18
- bug#39977: 28.0.50; Unhelpful stack trace, Eli Zaretskii, 2020/03/18
- bug#39977: 28.0.50; Unhelpful stack trace, martin rudalics, 2020/03/18
- bug#39977: 28.0.50; Unhelpful stack trace, Eli Zaretskii, 2020/03/18
- bug#39977: 28.0.50; Unhelpful stack trace, martin rudalics, 2020/03/19
- bug#39977: 28.0.50; Unhelpful stack trace, Eli Zaretskii, 2020/03/19
- bug#39977: 28.0.50; Unhelpful stack trace,
martin rudalics <=
- bug#39977: 28.0.50; Unhelpful stack trace, Eli Zaretskii, 2020/03/21
- bug#39977: 28.0.50; Unhelpful stack trace, martin rudalics, 2020/03/22
- bug#39977: 28.0.50; Unhelpful stack trace, Eli Zaretskii, 2020/03/23
- bug#39977: 28.0.50; Unhelpful stack trace, martin rudalics, 2020/03/24
- bug#39977: 28.0.50; Unhelpful stack trace, Eli Zaretskii, 2020/03/28
- bug#39977: 28.0.50; Unhelpful stack trace, martin rudalics, 2020/03/29
- bug#39977: 28.0.50; Unhelpful stack trace, Madhu, 2020/03/18
- bug#39977: 28.0.50; Unhelpful stack trace, Madhu, 2020/03/15
- bug#39977: 28.0.50; Unhelpful stack trace, martin rudalics, 2020/03/16