Sorry everybody!  I broke the witness build with my issue1763 patch.

I should have tested this, but must have neglected to.
Worse, I don't think my original type signature actually made any
sense.

Also: I couldn't work out how to say what I wanted.  In this patch,
I just sort of give up and fix issue1763 via copy+paste programming.

1 patch for repository http://darcs.net:

Mon Jun 21 23:21:43 BST 2010  Eric Kow <kowey@darcs.net>
  * Rollback foolhardy attempt to generalise bracketedFL.
  The attempt broke the witness build.
  This patch uses code duplication to achieve the same result
  intended by the generalisation.

Attachments

• rollback-foolhardy-attempt-to-generalise-bracketedfl_.dpatch
• unnamed

Oops, my first attempt was broken.  Try number 2 (with less editoralising
in the patch comments)

Ganesh: would you be able to look at this?

Thanks!

1 patch for repository http://darcs.net:

Mon Jun 21 23:28:05 BST 2010  Eric Kow <kowey@darcs.net>
  * Rollback attempt to generalise bracketedFL (which broke witnesses).
  This patch uses code duplication to achieve the same result
  intended by the generalisation.

Attachments

• rollback-attempt-to-generalise-bracketedfl-_which-broke-witnesses__.dpatch
• unnamed

What patch contains the change you are rolling back?

The patch being (partially) rolled back is part of patch258:

Wed Jun  2 12:08:17 BST 2010  Eric Kow <kowey@darcs.net>
  * Bug fix: treat filenames in darcs-2 patches as raw bytes.
  (instead of trying to decode from UTF-8)

But actually the problem can be solved with just a tweak to the type 
signature, so I think this rollback is overkill. I'll send in the patch 
tonight.