9ea2e9262f Don't use references to `TaprootMerkleBranchBuf` (Martin Habovstiak)
c528f52894 Change `Deref::Target` of `TaprootMerkleBranchBuf` (Martin Habovstiak)
04a4efbe63 Introduce unsized `TaprootMerkleBranch` (Martin Habovstiak)
370c2597c6 Add `as_mut_slice` to `TaprootMerkleBranchBuf` (Martin Habovstiak)
33d75659da Push `merkle_branch` module one level deeper. (Martin Habovstiak)
277045bad7 Add `Buf` suffix to `TaprootMerkleBranch` (Martin Habovstiak)
Pull request description:
This implements a bunch of changes needed to make `ControlBlock` alloc-free. In particular, this allows constructing `Witness` without the intermediate allocation. It is also a step towards having `P2TrSpend` public.
Closes#1614
This also intentionally does **not** address decoding of `ControlBlock` from `Witness` since I'm not sure about the API.
Rationale for doing the `Buf` rename: while doing it with `Script` was very painful it shouldn't be here since it's not used that often and also we can just backport the first commit with deprecated type alias. I was thinking of having `TaprootMerkleBr` but it'd be inconsistent and the name is silly.
(Also if anyone is wondering why I did this: I was too exhausted to do more important stuff but felt like doing something nice and easy like this.)
ACKs for top commit:
tcharding:
ACK 9ea2e9262f
apoelstra:
ACK 9ea2e9262fbc04ea6fad33047de0fc1ead999dc7; successfully ran local tests
Tree-SHA512: c5e3ea61d10fbe0cbce5e900943e3cef77a175a62043c500b3ff6df57a96f00692d80fb1c4dd75bca9a704201baab6ddfcc430b12c7ecabc43968198466fed9d
20c50e337f