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bug#25122: 24.5; function describe-variable hangs on large variables
From: |
Stefan Monnier |
Subject: |
bug#25122: 24.5; function describe-variable hangs on large variables |
Date: |
Sat, 11 Mar 2017 10:21:53 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
> (cl-letf (((symbol-function 'pp)
> (lambda (object &optional stream)
> (let ((fn (lambda (ob &optional stream)
> (princ (pp-to-string ob)
> (or stream standard-output))
> (terpri)))
> (print-circle t))
> (if (consp object)
> (progn
> (insert "\n(")
> (mapc fn object)
> (cl-letf (((point) (1- (point))))
> (insert ")")))
> (funcall fn object stream))))))
Hmm... I wonder why this would be faster. In the past, the
implementation of `print-circle` had a poor complexity, but we fixed
that around Emacs-24, IIRC so it now uses a hash-table and should have
O(n) complexity, which means that pp shouldn't be slower than (mapc
#'pp).
Stefan
- bug#25122: 24.5; function describe-variable hangs on large variables, (continued)
- bug#25122: 24.5; function describe-variable hangs on large variables, Stefan Monnier, 2017/03/12
- bug#25122: 24.5; function describe-variable hangs on large variables, npostavs, 2017/03/12
- bug#25122: 24.5; function describe-variable hangs on large variables, Drew Adams, 2017/03/12
- bug#25122: 24.5; function describe-variable hangs on large variables, Stefan Monnier, 2017/03/12
- bug#25122: 24.5; function describe-variable hangs on large variables, npostavs, 2017/03/12
- bug#25122: 24.5; function describe-variable hangs on large variables, npostavs, 2017/03/13
- bug#25122: 24.5; function describe-variable hangs on large variables, npostavs, 2017/03/13
- bug#25122: 24.5; function describe-variable hangs on large variables, npostavs, 2017/03/15
bug#25122: 24.5; function describe-variable hangs on large variables, Thierry Volpiatto, 2017/03/11
bug#25122: 24.5; function describe-variable hangs on large variables,
Stefan Monnier <=