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bug#25295: Represent eieio objects using object-print in backtraces and
From: |
Stefan Monnier |
Subject: |
bug#25295: Represent eieio objects using object-print in backtraces and edebug |
Date: |
Wed, 04 Jan 2017 21:11:15 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.2.50 (gnu/linux) |
> Maybe the better solution would be to make `prin1` (and `format`, ..)
> signal errors. Instead, we could provide the printer with a special
> prin1-like function which basically "continues" the print job in the
> C code.
Actually, print.c is already setup to be (at least partially) reentrant
(for the case `printcharfun` is a function), so maybe making it fully
reentrant won't be too hard. But we'd still want to provide some ad-hoc
prin1-like function which continues the print job rather than starting
a new nested one; this is needed e.g. if the custom printer wants to
print a value V but V has already been printed so it should be printed
as a reference #NN# to the previous one.
Stefan