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bug#26947: Preserve read-only when debugger with let-bound inhibit-read-
From: |
Stefan Monnier |
Subject: |
bug#26947: Preserve read-only when debugger with let-bound inhibit-read-only t. |
Date: |
Wed, 17 May 2017 09:34:15 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
> Entering the debugger when inhibit-read-only is let-bound to `t` causes all
> buffers to be read/write even though they may have `buffer-read-only` set to
> `t`.
[...]
> (when inhibit-read-only
> (setq inhibit-read-only nil))
Actually, the better option is probably to
(let ((inhibit-read-only nil))
around debug, like we already do with various other variables.
Of course, this is a general problem with dynamic scoping.
Maybe a better solution would be for `debug` to use another thread, so
it's not affected by those dynamic bindings of the debugged code.
Stefan