Issue 2370: Irrefutable pattern failed for pattern Data.Maybe.Just a2'o - Darcs bug tracker

Title	Irrefutable pattern failed for pattern Data.Maybe.Just a2'o
Priority	critical	Status	given-up
Milestone		Resolved in
Superseder		Nosy List	nomeata
Assigned To		Topics

Created on 2014-04-08.15:26:27 by nomeata, last changed 2020-08-01.09:13:17 by bfrk.

Files
File name	Uploaded	Type	Edit	Remove
repo1.tar.xz	nomeata, 2014-04-08.15:26:36	application/x-xz-compressed-tar
repo2.tar.xz	nomeata, 2014-04-08.15:26:36	application/x-xz-compressed-tar

Messages
msg17294 (view)	Author: nomeata	Date: 2014-04-08.15:26:26
Hi, trying to merge the repositories for GHC’s Debian packaging (both attached), I get darcs: src/Darcs/Patch/V2/Real.hs:(603,17)-(605,35): Irrefutable pattern failed for pattern Data.Maybe.Just a2'o It does not matter which way I try to merge them. This is $ darcs --version 2.8.4 (+ 1 patch) (the regular Debian package.) Greetings, Joachim -- Joachim “nomeata” Breitner mail@joachim-breitner.de • http://www.joachim-breitner.de/ Jabber: nomeata@joachim-breitner.de • GPG-Key: 0x4743206C Debian Developer: nomeata@debian.org
msg17295 (view)	Author: nomeata	Date: 2014-04-08.15:26:36
Hi, Am Dienstag, den 08.04.2014, 17:13 +0200 schrieb Joachim Breitner: > trying to merge the repositories for GHC’s Debian packaging (both > attached), forgot the attachement. Greetings, Joachim -- Joachim “nomeata” Breitner mail@joachim-breitner.de • http://www.joachim-breitner.de/ Jabber: nomeata@joachim-breitner.de • GPG-Key: 0x4743206C Debian Developer: nomeata@debian.org Attachments repo1.tar.xz repo2.tar.xz
msg17303 (view)	Author: bfrk	Date: 2014-04-08.21:15:38
I reproduced it with the current HEAD: same error, both directions. This is really bad, so I am marking it as critical.
msg22345 (view)	Author: bfrk	Date: 2020-08-01.09:13:15
This bug in the darcs-2 conflictor implementation is practically unfixable, like many others, due to the extreme complexity and obscurity of the code.

History
Date	User	Action	Args
2014-04-08 15:26:27	nomeata	create
2014-04-08 15:26:37	nomeata	set	files: + repo1.tar.xz, repo2.tar.xz messages: + msg17295
2014-04-08 21:15:39	bfrk	set	priority: critical messages: + msg17303
2020-08-01 09:13:17	bfrk	set	status: unknown -> given-up messages: + msg22345