Commit Graph

2139 Commits

Author SHA1 Message Date
Maxim Evtush a697af9755
Update tests.rs 2025-04-12 16:09:18 +02:00
merge-script d4c10a8af0
Merge rust-bitcoin/rust-bitcoin#4317: add copy trait to address and AddressInner
52f9c13358 Implement Copy for Address and AddressInner (tushar994)

Pull request description:

  solves #4237

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Tree-SHA512: 007092c57b893cfa62a6185c21b8839daf946a5b8ca505fc7d5f3b78c056fc5ce44cfb32936469f1955d535f4798506ea20a936218f0bf6808b17506e87836f2
2025-04-10 18:57:38 +00:00
tushar994 52f9c13358 Implement Copy for Address and AddressInner
Enables by-value Address semantics for easier use; large sizes can use Box.
2025-04-09 12:25:43 +05:30
merge-script 265f9ebee0
Merge rust-bitcoin/rust-bitcoin#4306: chore: remove unused cortex-m dependency
dab577471d chore: remove unused cortex-m dependency from embedded Cargo.toml files in bitcoin and hashes modules. (lfgtwo)

Pull request description:

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Tree-SHA512: 77e852313f067d10241b47db3516716344383a670011e56f7b7ffadbcdb82787aac3800971d13e3160b4d1f533b71398c2bfaa0f6e47dc24d4c8a1d7d82e2405
2025-04-08 02:47:16 +00:00
merge-script 8599ceefe3
Merge rust-bitcoin/rust-bitcoin#4309: Automated nightly rustfmt (2025-04-06)
4c35e06c01 2025-04-06 automated rustfmt nightly (Fmt Bot)

Pull request description:

  Automated nightly `rustfmt` changes by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action

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Tree-SHA512: a989a58511e3e1ecfc14885aa0a3b1c1d8c54bdf49221d39f88a4cc230c8808701ddad4ef2d62b30e6819f75f86e77796848304a170720ba5c3c38d0125f3d1f
2025-04-07 20:56:12 +00:00
merge-script 808771d87e
Merge rust-bitcoin/rust-bitcoin#4311: fix correction in comment mod.rs
0a1efdaa66 fix correction in comment mod.rs (Bilog WEB3)

Pull request description:

  assoctiated - associated

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Tree-SHA512: bdeb08b17e7f39b7fbe6644fdc76c1c264f078039c51801de66fd1ebf02cd89a5951cb2ebd5d8e052331a82cdc0b0e2796c37c7a2e43403ea22d8420e76f03cf
2025-04-07 16:48:04 +00:00
Bilog WEB3 0a1efdaa66
fix correction in comment mod.rs 2025-04-06 13:38:37 +02:00
Fmt Bot 4c35e06c01 2025-04-06 automated rustfmt nightly 2025-04-06 01:26:49 +00:00
fuder.eth c55da5c342
Update bip_174.rs 2025-04-05 20:34:17 +02:00
lfgtwo dab577471d chore: remove unused cortex-m dependency from embedded Cargo.toml files in bitcoin and hashes modules. 2025-04-05 18:25:41 +08:00
merge-script 9f7f659591
Merge rust-bitcoin/rust-bitcoin#4302: Add push_relative_lock_time() and deprecate push_sequence()
ebaf162a96 Add push_relative_lock_time() and deprecate push_sequence() (Erick Cestari)

Pull request description:

  This pr improves the script builder API to better align with Bitcoin semantics when working with relative timelocks:

  - Add `push_relative_lock_time()` method that takes a `relative::LockTime` parameter, which correctly represents the semantic meaning when working with CHECKSEQUENCEVERIFY

  - Deprecate `push_sequence()` in favor of `push_relative_lock_time()` to avoid confusion between sequence numbers and relative timelocks

  This addresses a potential confusion point in the API where developers might incorrectly push raw sequence numbers in scripts when what they actually need is to push a relative locktime value that will be checked against the transaction's sequence numbers by CHECKSEQUENCEVERIFY.

  Closes #4301

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Tree-SHA512: 52c37b6e8bbcaa3f9346c5fd5db26eba69169bce13f915906df95fdc65204067fd75f803f8b5adad76978c9baad553c99281628736db4d1d317b149ab257d81f
2025-04-03 19:23:52 +00:00
merge-script f7006e3d15
Merge rust-bitcoin/rust-bitcoin#4304: minor docstring fixups
157fe48dfd minor docstring fixups (planetBoy)

Pull request description:

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Tree-SHA512: 29fe6168ff729f0f65f32a2c6ad28d45e36e0761cac4455b57b891f9c0bd2622db51a21b4961d33fa5a8934302eefca4a77c20732bf047e2721a5bc5d655c340
2025-04-02 16:51:06 +00:00
planetBoy 157fe48dfd
minor docstring fixups 2025-04-02 12:26:53 +02:00
Bilog WEB3 ab63ec9768
fix correction typos 2025-04-01 17:38:24 +02:00
Erick Cestari ebaf162a96 Add push_relative_lock_time() and deprecate push_sequence()
This commit improves the script builder API to better align with Bitcoin
semantics when working with relative timelocks:

- Add push_relative_lock_time() method that takes a relative::LockTime
  parameter, which correctly represents the semantic meaning when working
  with CHECKSEQUENCEVERIFY

- Deprecate push_sequence() in favor of push_relative_lock_time() to avoid
  confusion between sequence numbers and relative timelocks

This addresses a potential confusion point in the API where developers
might incorrectly push raw sequence numbers in scripts when what they
actually need is to push a relative locktime value that will be checked
against the transaction's sequence numbers by CHECKSEQUENCEVERIFY.
2025-03-31 14:01:14 -03:00
merge-script 59524adafd
Merge rust-bitcoin/rust-bitcoin#4295: Automated nightly rustfmt (2025-03-30)
b8910e201e 2025-03-30 automated rustfmt nightly (Fmt Bot)

Pull request description:

  Automated nightly `rustfmt` changes by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action

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Tree-SHA512: 9bd89439304322d30e04aae8f9803f9e07830b616cb49339ac4b1e0ee1bfe440865d9ebc7f41eea1bcd35cb751060215eec20d258d88e9f20dd3f905b9ab690f
2025-03-30 19:37:31 +00:00
merge-script f2869ad348
Merge rust-bitcoin/rust-bitcoin#4292: chore: fix grammatical errors
6ebdf61e76 Fix grammatical typos (VolodymyrBg)

Pull request description:

  base58/src/error.rs:

  - Corrected grammar in error comment: "Found a invalid ASCII byte" → "Found an invalid ASCII byte".

  bitcoin/CHANGELOG.md:

  - Fixed typo in function name: p2wpkh_signiture_hash → p2wpkh_signature_hash.

  units/src/amount/error.rs:

  - Fixed grammar: "was large than" → "was larger than".

  units/src/fee_rate/mod.rs:

  - Corrected typo: "assoctiated" → "associated".

  units/tests/api.rs:

  - Grammar fix: "THE POINT of tests are" → "THE POINT of tests is".

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Tree-SHA512: bb5800b6248bedad46d511a0123c50b1d8d2deacfa752cd675d21e40cb78a6a5d917da28a9a87c3f779cd13819d5b16a7668d1e388d1d58d200ea688d8c114ac
2025-03-30 15:19:49 +00:00
merge-script 18512513e0
Merge rust-bitcoin/rust-bitcoin#4280: updated and corrected links CHANGELOG.md
51d3a83891 updated and corrected links CHANGELOG.md (Bilog WEB3)

Pull request description:

  Hey , I read through the whole `CHANGELOG.md` and fixed all the links + adjusted some

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Tree-SHA512: d36f38dd4b4fb83e615a3cdfe5efdbec5418283b53b09a0e7f288d88711626123c3e1dd5d3dac151186a4592dfbbaa26c90e4d409ed9f1cbf2116292979c3e20
2025-03-30 14:35:41 +00:00
Fmt Bot b8910e201e 2025-03-30 automated rustfmt nightly 2025-03-30 01:27:51 +00:00
Bilog WEB3 51d3a83891 updated and corrected links CHANGELOG.md 2025-03-29 12:03:28 +02:00
merge-script cb5f84c21f
Merge rust-bitcoin/rust-bitcoin#4290: fix err `P2WPKH` to `P2WSH` witness_version.rs
7b193b5125 fix err P2WPKH to P2WSH (planetBoy)

Pull request description:

  The correction is important because “P2WPK” is not a valid name. In the BIP141 specifications, the correct terms are “P2WPKH” and “P2WSH”.

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Tree-SHA512: 951bcde2c28e2086a69043c1ed27bde0935df0918f418c5f6f89ed476ba9e182e99eec545a438f79ca4e1704ce496d443b5bc9e368a53dd583a884f1da405865
2025-03-28 18:32:34 +00:00
merge-script a2408e9b0c
Merge rust-bitcoin/rust-bitcoin#4281: Return `ControlBlock` from `Witness::taproot_control_block`
492073f288 Strengthen the type of `taproot_control_block()` (Martin Habovstiak)
e8a42d5851 Unify/reduce usage of `unsafe` (Martin Habovstiak)
d42364bd9d Swap around the fields in `Address` (Martin Habovstiak)
7a115e3cf1 Make `Address` obey sanity rules (Martin Habovstiak)
bc6da1fe07 Swap around the fields in `sha256t::Hash` (Martin Habovstiak)
8ee088df74 Make `sha256t` obey sanity rules (Martin Habovstiak)

Pull request description:

  Well, I thought this PR will be just the last commit... 😅

  Anyway, this implements a bunch of changes to allow returning `ControlBlock` from `Witness` method(s). One cool side effect is that this PR also reduces the number of `unsafe` blocks.

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Tree-SHA512: 11979517cc310abf25644fc93a75deccacae66af8ba2d9b4011fdc3f414b15fac7e748399c7eef492ca850c11b7aacc3f24ec46fccf95e6d57a400212979637e
2025-03-28 15:06:43 +00:00
planetBoy 7b193b5125 fix err P2WPKH to P2WSH 2025-03-27 22:20:32 +02:00
Martin Habovstiak 492073f288 Strengthen the type of `taproot_control_block()`
The type returned by `Witness::taproot_control_block()` was just `&[u8]`
which wasn't very nice since users then had to manually decode it which
so far also required allocation. Thanks to previous improvements to
`ControlBlock` it is now possible to return a `ControlBlock` type
directly.

To avoid expensive checks, this change adds a new type
`SerializedXOnlyPublicKey` which is a wrapper around `[u8; 32]` that is
used in `ControlBlock` if complete checking is undesirable. It is then
used in the `ControlBlock` returned from
`Witness::taproot_control_block`. Users can still conveniently validate
the key using `to_validated` method.

It then uses this type in the recently-added `P2TrSpend` type. As a side
effect this checks more properties of `Witness` when calling unrelated
methods on `Witness`. From correctness perspective this should be OK: a
witness obtained from a verified source will be correct anyway and, if
these checks were done by the caller, they can be removed.

From performance perspective, if the `Witness` was obtained from a
verified source (e.g. using Bitcoin Core RPC) these checks are wasted
CPU time. But they shouldn't be too expensive, we already avoid
`secp256k1` overhead and, given that they always succeed in such case,
they should be easy to branch-predict.
2025-03-27 20:15:53 +01:00
Martin Habovstiak e8a42d5851 Unify/reduce usage of `unsafe`
Since the introduction of `Script` `unsafe` started slowly creeping in
as more types with similar semantics were added. The `unsafe` in these
cases is just for trivial conversions between various pointer-like
types. As such, it's possible to move these into a single macro that
takes care of the conversions at one place and avoid repeating the same
`unsafe` code in the codebase. This decreases the cost of audits which
now only need to happen in `internals`, focuses any changes to happen in
that single macro and decreases the chance that we will mess up
similarly to the recent `try_into().expect()` issue (but this time with
UB rather than panic).

The new macro accepts syntax very similar to the already-existing struct
declarations with these differences:

* The struct MUST NOT have `#[repr(transparent)]` - it's added by the
  macro
* If the struct uses `PhantomData` it must be the first field and the
  real data must be the second field (to allow unsized types).
* The struct must be immediately followed by an impl block containing at
  least on conversion function.
* If the struct has generics the impl block has to use the same names of
  generics.
* The conversion functions don't have bodies (similarly to required
  trait methods) and have a fixed set of allowed signatures.
* Underscore (`_`) must be used in place of the inner type in the
  conversion function parameters.

The existing code can simply call the macro with simple changes and get
the same behavior without any direct use of `unsafe`. This change
already calls the macro for all relevant existing types. There are still
some usages left unrelated to the macro, except one additional
conversion in reverse direction on `Script`. It could be moved as well
but since it's on a single place so far it's not really required.
2025-03-27 20:15:37 +01:00
VolodymyrBg 6ebdf61e76 Fix grammatical typos
Fix grammar and typos in documentation and README
2025-03-27 20:49:19 +02:00
merge-script 158240c3c9
Merge rust-bitcoin/rust-bitcoin#4284: Use `path = [bala]` for `rust-bitcoin`'s workspace members dependencies. remove `[patch.crates-io.balab]`
9a572dabde refactor: use path dependencies for workspace members in bitcoin/Cargo.toml (Eval EXEC)

Pull request description:

  This PR want to:

  1. make all workspace members use `workspace = true` syntax to import dependencies.
  2. use `path = [balabala]` to define dependencies, instead of useing `[patch.crates-io.balabala]` , fix: https://github.com/rust-bitcoin/rust-bitcoin/issues/4283

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Tree-SHA512: 834ef881ed3fd324a9ecca440e8e591984a7e474eb6aeab86a0301cbd08b6dc96ecdc34b306ad146b11b50f7488024c289b8f8c7c6de1a2bdba7aec515b722ee
2025-03-27 15:01:47 +00:00
Eval EXEC 9a572dabde
refactor: use path dependencies for workspace members in bitcoin/Cargo.toml
Signed-off-by: Eval EXEC <execvy@gmail.com>
2025-03-27 12:55:16 +08:00
merge-script 459a7db038
Merge rust-bitcoin/rust-bitcoin#4285: chore: remove explicit into iteration
e966335447 chore: remove explicit into iteration (jike)

Pull request description:

  ```
  warning: it is more concise to loop over containers instead of using explicit iteration methods
     --> bitcoin/src/psbt/serialize.rs:209:21
      |
  209 |         for cnum in self.1.into_iter() {
      |                     ^^^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `&self.1`
  ```

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Tree-SHA512: 32fced1a5aba2caa6e48a2e586bf00dcf3d4b82b6b530d9c7f535b530737a40e24d5c05a7cea40747df4c7c4698ec141683b9416583b185b1ff6461f3c8f667f
2025-03-26 17:39:40 +00:00
merge-script e77d6b3360
Merge rust-bitcoin/rust-bitcoin#4166: Remove bip158 types from crate root
fb29aadc47 Remove bip158 types from crate root (Tobin C. Harding)

Pull request description:

  BIP-158 (Compact Block Filters for Light Clients) is not so common as to require re-exorting its types at the crate root - remove them.

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Tree-SHA512: 8a2edaad858b18feded8cc9e1d15f03a76980bd41524fa34b91b4055b236788c6d828940c6293e086a8c8e33baadc5765a1a60920513fdff2de22e9d94c0e541
2025-03-26 15:06:55 +00:00
merge-script 143531de7c
Merge rust-bitcoin/rust-bitcoin#4279: `Witness` api improvements and test cleanups
84bee2f7b0 Simplify `Witness` construction in tests (Martin Habovstiak)
3551ec2c69 Don't access internalls of `Witness` in tests (Martin Habovstiak)
c8078360d2 Impl `PartialEq` between `Witness` and containers (Martin Habovstiak)
587a66da47 Add a bunch of missing conversions for `Witness` (Martin Habovstiak)

Pull request description:

  This is supposed to go in front of #4250

  `Witness` lacked a bunch of APIs that were making it harder to use and test, so this also adds them in addition to cleaning up tests. (I only realized they are missing when I tried to clean up tests and got a bunch of errors.)

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Tree-SHA512: 7973f2a56b070babba7b4c632f45858154ccd00f8e77956ad2d28cb66e1fd18ff60d92c031ba3b76d0958e4acd34adfca10607fa26ec569dfd52ba1c1e2c79eb
2025-03-26 03:38:39 +00:00
jike e966335447 chore: remove explicit into iteration 2025-03-26 11:07:30 +08:00
merge-script cf79f05ad6
Merge rust-bitcoin/rust-bitcoin#4271: Make code style consistent and fix naming in macro Array implementations
e744347022 Make usage of Self and type uniform across both modules (Erick Cestari)
dfb49f014c Rename impl_try_from_array to impl_from_array (Erick Cestari)

Pull request description:

  This PR makes two main changes:

  1. Standardizes the function signatures in the `Amount` and `SignedAmount` implementations by consistently using `Self` as the return type instead of the concrete type names. This improves code consistency, maintainability, and follows Rust's idiomatic practices.
  2. Renames `impl_try_from_array` to `impl_from_array` to better reflect its functionality.

  ### Changes
  **Consistent usage of Self instead of concrete types**

  - Replace all occurrences of `-> Amount` with `-> Self `in unsigned.rs
  - Replace all occurrences of `-> SignedAmount` with `-> Self` in signed.rs
  - Make similar replacements for Option/Result return types
  - Use `Self::` instead of explicit type name for static method calls

  **Function rename**

  Renamed `impl_try_from_array` to `impl_from_array` for better clarity

  ### Related Issues

  Closes #4210

  Closes #4241

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Tree-SHA512: 3113f3ccf595b298afe6b23514f1de790284df7fcb55a13658aabe3ef4fcea0e401b65b0a2c67ac18da87a1bcd247bd1f1484856fe03470b98dfa2614958a3bb
2025-03-25 19:39:23 +00:00
merge-script 87889955f9
Merge rust-bitcoin/rust-bitcoin#4238: Add XOnlyPublicKey support for PSBT key retrieval and improve Taproot signing
069d2fd07e Add XOnlyPublicKey support for PSBT key retrieval and improve Taproot signing (Erick Cestari)

Pull request description:

  The `bip32_sign_schnorr` function was previously only attempting to retrieve private keys using `KeyRequest::Bip32`, which limited the ability to sign Taproot inputs with key maps that don't support BIP32 derivation paths.

  ## Changes
  - Added new `KeyRequest::XOnlyPubkey` variant to support direct retrieval using XOnly public keys
  - Implemented `GetKey` for `HashMap<XOnlyPublicKey, PrivateKey>` for more efficient Taproot key management
  - Modified `HashMap<PublicKey, PrivateKey>` implementation to handle XOnlyPublicKey requests by checking both even and odd parity variants
  - Added comprehensive tests for both key map implementations

  These improvements enable wallet implementations to store keys indexed by either `PublicKey` or `XOnlyPublicKey` and successfully sign PSBTs.

  Closes #4150

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Tree-SHA512: 0ae07309b772f1a53e7da45073f7e2337cc332ab2335925d623d0e1ad1503aab77673bbbd64e5533ae7fc8d57f3577db0ae7ac3b05279de92d3b34ab8eeae90f
2025-03-24 20:15:21 +00:00
Martin Habovstiak d42364bd9d Swap around the fields in `Address`
There's a restriction that for structs containing unsized types the
unsized type has to be the last field. `Address` is not an unsize type
but we are going to introduce a macro that will assume this order to
work equally well with both sized and unsized types. Thus we swap it
upfront here.
2025-03-24 14:30:56 +01:00
Martin Habovstiak 7a115e3cf1 Make `Address` obey sanity rules
`Address` was directly accessing its internals in multiple places. This
makes maintenance harder, so change it to use methods instead.
2025-03-24 14:30:24 +01:00
Martin Habovstiak 84bee2f7b0 Simplify `Witness` construction in tests
The `Witness`-related tests were constructing `Witness` in
over-complicated way by serializing `Vec<Vec<u8>>` and then
deserializing `Witness` even though they were not supposed to test
serialization but Taproot accessor methods. This was difficult to
understand and maintain.

This change simplifies them to just construct the `Witness` from array
of `Vec<u8>`s using the recently-added constructors. Note that we
already have serialization tests written separately so we're not losing
meaningful coverage here.
2025-03-23 21:23:56 +01:00
Erick Cestari dfb49f014c Rename impl_try_from_array to impl_from_array 2025-03-21 14:26:31 -03:00
merge-script 294a58c3f9
Merge rust-bitcoin/rust-bitcoin#4128: Remove `From<hash>` for not-general-hash types
db9ec3bed8 Remove From<newtype> for $hash (Tobin C. Harding)
6b2b89c2f7 Remove From<hash> for not-general-hash types (Tobin C. Harding)
200ff47327 Use compute_merkle_root (Tobin C. Harding)

Pull request description:

  The `hash_newtype` macro is explicitly designed to produce a hash that is not a general purpose hash type to try and prevent users hashing arbitrary stuff with it. E.g., `Txid` isn't meant to be just hash arbitrary data. However we provide a `From` impl that will convert any instance of the inner hash type into the new type. This kind of defeats the purpose. We provide `from_byte_array` and `to_byte_array` to allow folk to 'cast' from one hash type to another if they really want to and its ugly on purpose.

  Also, it is becoming apparent that we may be able to remove the `hashes` crate from the public API of `primitives` allowing us to stabalise `primitives` without stabalising `hashes`.

  For both these reasons remove the `From` impl from the `hash_newtype` macro. Note that deprecating doesn't seem to work so we just delete it.

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Tree-SHA512: 90bc325821cd2d72bbaef5b3cfef2d299192d1e7999cd4f96b6b69b8872e419964e431e91674c59bfdd2e9a5959dbc13ee89d5f87d03e96785044c616db19d72
2025-03-21 15:49:01 +00:00
Erick Cestari 069d2fd07e Add XOnlyPublicKey support for PSBT key retrieval and improve Taproot signing
This commit enhances PSBT signing functionality by:

1. Added new KeyRequest::XOnlyPubkey variant to support direct retrieval using XOnly public keys
2. Implemented GetKey for HashMap<XOnlyPublicKey, PrivateKey> for more efficient Taproot key management
3. Modified HashMap<PublicKey, PrivateKey> implementation to handle XOnlyPublicKey requests by checking both even and odd parity variants

These changes allow for more flexible key management in Taproot transactions.
Specifically, wallet implementations can now store keys indexed by either
PublicKey or XOnlyPublicKey and successfully sign PSBTs with Taproot inputs.

Added tests for both implementations to verify correct behavior.

Added test for odd parity key retrieval.

Closes #4150
2025-03-21 11:28:54 -03:00
Tobin C. Harding 6b2b89c2f7
Remove From<hash> for not-general-hash types
The `hash_newtype` macro is explicitly designed to produce a hash that
is not a general purpose hash type to try and prevent users hashing
arbitrary stuff with it. E.g., `Txid` isn't meant to be just hash
arbitrary data. However we provide a `From` impl that will convert any
instance of the inner hash type into the new type. This kind of defeats
the purpose. We provide `from_byte_array` and `to_byte_array` to allow
folk to 'cast' from one hash type to another if they really want to and
its ugly on purpose.

Also, it is becoming apparent that we may be able to remove the `hashes`
crate from the public API of `primitives` allowing us to stabalise
`primitives` without stabalising `hashes`.

For both these reasons remove the `From` impl from the `hash_newtype`
macro. Note that deprecating doesn't seem to work so we just delete it.
2025-03-21 09:12:25 +11:00
Tobin C. Harding 200ff47327
Use compute_merkle_root
Remove manual implementation of merkle root calculation and just use the
function we already have.

Refactor only, no logic change.
2025-03-21 09:09:49 +11:00
Martin Habovstiak 437562e71c Add official BIP32 test vectors for invalid keys
These are defined in the BIP as invalid. The previous commit fixed a bug
where invalid key was parsed as valid and this bug can be caught by
these vectors. Therefore, if this commit is ordered before the last one
the test will fail.
2025-03-20 20:19:51 +01:00
Martin Habovstiak 5dd0c9253d Remove a bunch of `try_into().expect()`
Previously we've used `try_into().expect()` because const generics were
unavailable. Then they became available but we didn't realize we could
already convert a bunch of code to not use panicking conversions. But we
can (and could for a while).

This adds an extension trait for arrays to provide basic non-panicking
operations returning arrays, so they can be composed with other
functions accepting arrays without any conversions. It also refactors a
bunch of code to use the non-panicking constructs but it's certainly not
all of it. That could be done later. This just aims at removing the
ugliest offenders and demonstrate the usefulness of this approach.

Aside from this, to avoid a bunch of duplicated work, this refactors
BIP32 key parsing to use a common method where xpub and xpriv are
encoded the same. Not doing this already led to a mistake where xpriv
implemented some additional checks that were missing in xpub. Thus this
change also indirectly fixes that bug.
2025-03-20 20:19:50 +01:00
merge-script 20c50e337f
Merge rust-bitcoin/rust-bitcoin#4248: Alloc-free (AKA zero-copy) control block
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
2025-03-20 19:12:00 +00:00
Andrew Poelstra 05c8b043ff
tests: replace Amount::from_sat_unchecked with from_sat.unwrap
There are only 7 instances of this so just call .unwrap() on each one.
2025-03-18 19:27:53 +00:00
Andrew Poelstra beaa2db7e5
amount: add from_sat_i32 and from_sat_u32 methods for small constants
We have a ton of calls to `from_sat_unchecked` for small constants which
were clearly in range, e.g. in fee.rs. Add a new constfn for these
cases. Don't bother making a generic Into<u32>/Into<u16> variant because
there isn't an obvious name for it.

There are 7 instances where we're using this method with values that are
out of range, which we leave as from_sat_unchecked for now.
2025-03-18 19:27:53 +00:00
Martin Habovstiak 9ea2e9262f Don't use references to `TaprootMerkleBranchBuf`
The new unsized type is more flexible and so are the references to it.
Just like we pass around `&str` instead of `&String` we should be
passing `&TaprootMerkleBranch` instead of `&TaprootMerkleBranchBuf`.
2025-03-18 16:33:05 +01:00
Martin Habovstiak c528f52894 Change `Deref::Target` of `TaprootMerkleBranchBuf`
`TaprootMerkleBranchBuf` previously derefed to a slice which lost the
information about length being valid. This commit changes the type
which, while API-breaking, is not disruptive because the type has API
very similar to slice.
2025-03-18 16:32:55 +01:00
Martin Habovstiak 04a4efbe63 Introduce unsized `TaprootMerkleBranch`
`TaprootMerkleBranchBuf` being a vec introduced intermediate allocation
when creating or decoding `Witness`. However the representation on the
wire is the same as in-memory (aside from `#[repr(transparent)]`) so
this allocation wasn't really needed.

This commit introduces `TaprootMerkleBranch` type which is unsized and
can be used in place of `TaprootMerkleBranchBuf` within `ControlBlock`.
Aside from removing the intermediate allocation, this improves the API a
bit: the conversion from array to other type is no longer needed because
it's performed by `ControlBlock` in its methods. Thus, consumers who
have an array can simply set it as `merkle_branch` field and then encode
the `ControlBlock` into witness. A convenience method is also provided
to push the `ControlBlock` along with other parts at the end of the
`Witness`.
2025-03-18 16:31:46 +01:00