GNU bug report logs - #46534
Lexical change in bindat breaks weechat.el

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From: Tony Olagbaiye <me <at> fron.io>
To: 46534 <at> debbugs.gnu.org
Cc: monnier <monnier <at> iro.umontreal.ca>
Subject: bug#46534: Lexical change in bindat breaks weechat.el
Date: Mon, 15 Feb 2021 14:29:06 +0000

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Hi,

As of commit c8c4d65d6510724acd40527a9af67e21e3cf4d5e (as bisected in my stead by wasamasa on \#emacs) it seems bindat changes have broken weechat.el, or specifically the weechat-relay module.

Attached a minimal reproducible script which fails on master but succeeds prior to the mentioned commit: weechat-bindat.bug.el.txt

Backtrace:

Debugger entered--Lisp error: (void-variable struct) (bindat-get-field struct 'len) (weechat--relay-bindat-unsigned-to-signed (bindat-get-field struct 'len) 4) (let ((len (weechat--relay-bindat-unsigned-to-signed (bindat-get-field struct 'len) 4))) (if (<= len 0) 0 len)) bindat--unpack-group(((len u32) (val str (eval (let ((len (weechat--relay-bindat-unsigned-to-signed ... 4))) (if (<= len 0) 0 len)))))) bindat--unpack-group(((length u32) (compression u8) (id struct weechat--relay-str-spec) (data vec (eval (let ((l (- ... 4 1 ...))) l))))) bindat-unpack(((length u32) (compression u8) (id struct weechat--relay-str-spec) (data vec (eval (let ((l (- ... 4 1 ...))) l)))) "\\0\\0\\0$\\0\\0\\0\\0\\4G255inf\\0\\0\\0\\7version\\0\\0\\0\\0053.0.1") weechat-unpack-message("\\0\\0\\0$\\0\\0\\0\\0\\4G255inf\\0\\0\\0\\7version\\0\\0\\0\\0053.0.1") weechat--relay-parse-new-message() weechat--relay-process-filter(\#<process weechat-relay-tls> "\\0\\0\\0$\\0\\0\\0\\0\\4G255inf\\0\\0\\0\\7version\\0\\0\\0\\0053.0.1")

Best,
bqv

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