D7716: rust-discovery: partial switch to typestate pattern

[gracinet (Georges Racinet)]

gracinet added a comment.


  I'm gonna give it a try, yes. About the namings, I'm thinking of `<Cheap>` and `<Expensive>`. It doesn't describe the contents, but it's really clear about the intent.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D7716/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D7716

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