view tests/test-issue433.t @ 12948:de6a28ff5ffc

mq: use sets instead of lists for speed

The code eventually converts data through sets to ensure unicity:
do it earlier to allow faster __contains__ lookups and avoid
`del l[l.index(x)]` kind of code.

http://mercurial.selenic.com/bts/issue433

  $ hg init
  $ echo a > a
  $ hg commit -Ama
  adding a

  $ hg parents -r 0 doesnotexist
  abort: 'doesnotexist' not found in manifest!
  [255]