view tests/test-revert-unknown.t @ 43285:ffc1fbd7d1f5

rust-cpython: make PyLeakedRef operations relatively safe

This patch encapsulates the access to the leaked reference to make most
leaked-ref operations safe. The only exception is leaked_ref.map(). I
couldn't figure out how to allow arbitrary map operation safely over an
unsafe static reference. See the docstring and inline comment for details.

Now leak_immutable() can be safely implemented as the PyLeakedRef owns
its inner data.

  $ hg init
  $ touch unknown

  $ touch a
  $ hg add a
  $ hg ci -m "1"

  $ touch b
  $ hg add b
  $ hg ci -m "2"

Should show unknown

  $ hg status
  ? unknown
  $ hg revert -r 0 --all
  removing b

Should show unknown and b removed

  $ hg status
  R b
  ? unknown

Should show a and unknown

  $ ls
  a
  unknown