We can just pass the function directly. Found by clippy bizarrely after
running `rustfmt` (in bot-created PR #4586).
Internal change only, no logic change.
c11772a768 Accept flexible input types for Taproot-related functions (Erick Cestari)
2a518d62e6 Wrap secp256k1::XOnlyPublicKey to improve error handling (Erick Cestari)
Pull request description:
This PR addresses issue #4361 by creating a wrapper type for XOnlyPublicKey instead of directly re-exporting it from the secp256k1 library.
### Key Changes
1. Created a new `XOnlyPublicKey` struct that wraps `secp256k1::XOnlyPublicKey`
2. Implemented custom error types:
- `ParseXOnlyPublicKeyError` for handling parsing errors
- `TweakXOnlyPublicKeyError` for tweaking an `XOnlyPublicKey`
3. Updated all imports and usage throughout the codebase
4. Implemented necessary traits and methods for compatibility
Closes#4361
ACKs for top commit:
apoelstra:
ACK c11772a768eefd89dcc0e3b1a369d535c191f94a; successfully ran local tests
tcharding:
ACK c11772a768
Tree-SHA512: c8da3486e7ffcab6c24cc08f9b2f964dd9158449ef2bd720e54d56176bc7027052314ea23cac3f673d217fa785238ea8a9b5323ba57f02199f20e56df5893965
Refactor Taproot functions to accept any type implementing `Into<XOnlyPublicKey>`,
instead of requiring `XOnlyPublicKey` directly. This improves ergonomics when working
with compatible types, avoiding unnecessary `.into()` conversions at call sites.
I'm not sure why we do not use consensus encoding currently for encoding
and decoding scripts to/from hex strings. Many tests include hard coded
hex which do not include the length prefix.
- Add a pair of encoding functions to encode/decode to/from hex without
the length prefix.
- Make `to_hex` and `from_hex` expect the length prefix i.e., use
consensus encoding.
This makes the API easier to use because the various encoding APIs can
be use together now eg `consensus::encode_hex` and `ScriptBuf::from_hex`.
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.
During upgrade of `secp256k1` a number of function calls needed to be
rewritten to not use `from_slice` but `from_byte_array`. Unfortunately,
the conversion wasn't correct and caused panics on invalid inputs
rather than errors.
This fixes it simply by calling `try_into` on the entire slice and
converting the error.
Deprecate the `Script::to_bytes` function in favour of `to_vec` as we
are doing elsewhere.
Note that `ScriptBuf` has `into_bytes` because it does not copy.
Potentially this should be deprecated in favour of `into_vec`?
Note that in regards to the `to_` prefix this naming as valid according
to convention because the `Script` type is borrowed and `to_vec` copies
the underlying bytes.
During this release cycle we deprecated `to_vec` in favour of
`to_bytes`, we have since reversed our position on the name.
Remove the deprecation of `to_bytes` from the three types that had it
and use `to_vec`.
Recently we deprecated `to_vec` in favour of `to_bytes` however we
continued to use `to_vec` in a few places. This wasn't noticed because
of our usage of `TBD` in the `deprecated` attribute.
Use `to_bytes` instead of `to_vec`.
At some stage we named the compact encoding `VarInt` (which makes sense
because the compact size encoding is a variable length integer encoding).
However it turns out the term "varint" is used in Core for a different
encoding so this may lead to confusion.
While we fix this naming thing observe also that the `VarInt` type is
unnecessarily complicated, all we need to be able to do is encode and
decode integers in compact form as specified by Core. We can do this
simply by extending our `WriteExt` and `ReadExt` traits.
Add `emit_compact_size` and `read_compact_size` to emit and read compact
endcodings respectively.
Includes addition of `internals::compact_size::encoded_size_const`.
Patch originally written by Steven, Tobin cherry-picked and did a bunch
of impovements after the varint vs compact_size thing (#1016).
ref: https://en.bitcoin.it/wiki/Protocol_documentation#Variable_length_integer
Co-developed-by: Tobin C. Harding <me@tobin.cc>
There are a couple of issues around the ECDSA signature decoding /
parsing code. We have duplicate code in `from_str` and `from_slice`
and both use the same error type even though it is impossible to get a
hex error in `from_slice`.
Create two errors:
- A `DecodeError` returned by `from_slice`
- A `ParseSignatureError` that has a decode variant and a hex variant
Call through to `from_slice` after parsing hex into a byte vector.
Removes an instance of `unreachable!`.
Fix: #1193
In preparation for moving the `ScritpBuf` type to `primitives` add a
public and private extension trait for the functions we want to leave
here in `bitcoin`.
Note, includes a change to the `difine_extension_trait` metavariable
used on `$gent` from `ident` to `path` to support the generic
`AsRef<PushBytes>`.
Wildcards have been replaced with what is actually used.
In a couple of cases an additional use statement was added to the test
module to import `DisplayHex` which is only used in test, but
previously imported with the wildcard at the top.
Manually implement it for Wtxid, Txid and BlockHash, where the all-zero
"hash" has a consensus meaning. But in general we should not be
implementing this method unless we have a good reason to do so. It can
be emulated or implemeted in terms of from_byte_array.
The use of Wtxid::all_zeros is obscure and specific enough that I am
tempted to drop it. But for txid and blockhash, the 0 hash appears in
actual blockdata and we should keep it.
All other uses of all_zeros were either in test code or in places where
the specific hash was not important and [u8; 32] was a more appropriate
type.
the `blockdata` directory is code organisation thing, all the
types/modules are re-exported from other places. In preparation for, and
to make easier, the `primitives` crate smashing work - remove all
explicit usage of `blockdata`.
Note that the few instances remain as they seem required e.g.,
`pub(in crate::blockdata::script)`
Refactor only, no logic changes.
Currently we have a trait `Hash` that is required for `Hmac`, `Hkdf`,
and other use cases. However, it is unegonomic for users who just want
to do a simple hash to have to import the trait.
Add inherent functions to all hash types including those created with
the new wrapper type macros.
This patch introduces some duplicate code but we are trying to make
progress in the hashes API re-write. We can come back and de-dublicate
later.
Includes making `to_byte_array`,`from_byte_array`, `as_byte_array`, and
`all_zeros` const where easily possible.
6ba7758b30 Improve array macros (Tobin C. Harding)
Pull request description:
Currently we have two macros used when creating array wrapper types, one is in `internals` and the other in `bitcoin::internal_macros`. It is not immediately obvious what is what and why there are two.
Improve the macros by:
- Move the inherent functions to `impl_array_newtype`
- Use `*_byte_array` for the names instead of `*_bytes`
- Re-name the other macro to match what it now does
ACKs for top commit:
apoelstra:
ACK 6ba7758b30
Tree-SHA512: 36ed0fae0d28f24d29287062eb05bbc1e9e8b565f4ff41fd893503a25404ed8e185a34d75e398a8a660923ffda3b832b6157011598d5a75a5c4aafdffc74af2a
Currently we have two macros used when creating array wrapper types,
one is in `internals` and the other in `bitcoin::internal_macros`. It
is not immediately obvious what is what and why there are two.
Improve the macros by:
- Move the inherent functions to `impl_array_newtype`
- Use `*_byte_array` for the names instead of `*_bytes` for functions
that return arrays
- Add `as_bytes` to return a slice
- Add `to_bytes` to return a vector
- Re-name the other macro to match what it now does
Development for `psbt` has move to another repo, these TODO comments are
over there alread, lets just remove them from `rust-bitcoin` as part of
an effort to remove TODOs from the codebase.
Recently we introduced a bug in the weight/size code, while
investigating I found that our `Transaction`/`Block` weight/size APIs
were in a total mess because:
- The docs were stale
- The concept of weight (weight units) and size (bytes) were mixed up
I audited all the API functions, read some bips (141, 144) and re-wrote
the API with the following goals:
- Use terminology from the bips
- Use abstractions that mirror the bips where possible
Throughout the codebase we cast values to `u64` when constructing a
`VarInt`. We can make the code marginally cleaner by adding `From<T>`
impls for all unsigned integer types less than or equal to 64 bits.
Also allows us to (possibly unnecessarily) comment the cast in a single
place.
As we do for `NonStandardSighashErrorType` add an error struct for
invalid sighash type, used by the `taproot` module instead of returning
a generic error enum with loads of unused variants.
We have just released the `hex-conservative` crate, we can now use it.
Do the following:
- Depend on `hex-conservative` in `bitcoin` and `hashes`
- Re-export `hex-conservative` as `hex` from both crate roots.
- Remove all the old hex code from `hashes`
- Fix all the import statements (makes up the bulk of the lines changed
in this patch)
Last release we added a type alias for `Psbt`, now lets just rename the
type and be done with it.
Includes re-export at the crate root because `bitcoin::Psbt` is clear
and obvious.
This error type is only used in the `from_slice` function. Use prefix
`Sig` because `taproot::FromSliceError` does not fully express how the
error came about.
Use specific identifier for the error, this aids usage but also prevents
us later adding "random" other variants into this error and using it in
other functions.
Cleanly separate `TapTree` and `NodeInfo`. Fix serde not respecting
invariants for several data structures
Repurpose some tests from removed taproot builder for taptree
Fmt Bot
Tobin C. Harding
Daniel Roberts
merge-script
Erick Cestari
GarmashAlex
jike
Martin Habovstiak
healthyyyoung
19年梦醒
Steven Roose
elsirion
Jamil Lambert, PhD
Vincenzo Palazzo
sanket1729