rust: pin-init: internal: pin_data: implement initialization of borrowed structs

We now have the checks to ensure that lifetime relations are what is
expected, we can generate the slot projections in `generate_pin_data` so
self-referential struct can be implemented.

New slot and guard types are defined (`SelfRefSlot` and `SelfRefDropGuard`)
which gives the generated let bindings longer lifetime than the guard
themselves.

Have `__make_closure` take `data` back as an argument. This gives
`#[pin_data]` an opportunity to change the type to add lifetimes.
Higher-ranked trait bound on `__make_closure` is used to ensure that the
initialization closure cannot make arbitrary assumptions of those
lifetimes.

Acked-by: Benno Lossin <lossin@kernel.org>
Link: https://patch.msgid.link/20261008-dev-selfref-v2-8-e280b3c8fba5@garyguo.net/
Signed-off-by: Gary Guo <gary@garyguo.net>

0 files changed, 0 insertions, 0 deletions