D6631: rust-cpython: add macro for sharing references

[gracinet (Georges Racinet)]

gracinet added a comment.


  > it still feels like we are kinda implementing a second `RefCell` anyways
  
  We all share that feeling, I think. Let's hope we'll be able to circumvent that in some future.
  
  > but I think this code is quite clean.
  
  Thanks, @Alphare is currently on leave. I'm sure he'll appreciate when he comes back.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D6631/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D6631

To: Alphare, #hg-reviewers, kevincox
Cc: gracinet, durin42, kevincox, mercurial-devel