add371d263 Remove `core2` dependency entirely (Matt Corallo)
b7dd16da99 [IO] Use our own io::Error type (Matt Corallo)
c95b59327a Explicitly use `std::io::Error` when implementing `std` traits (Matt Corallo)
9e1cd372cb Use `io::Error::get_ref()` over `std::error::Error::source()` (Matt Corallo)
3caaadf9bb [IO] Replace the `io::Cursor` re-export with our own `Cursor` (Matt Corallo)
141343edb4 [IO] Move to custom `Read` trait mirroring `std::io::Read` (Matt Corallo)
7395093f94 Stop relying on `Take`'s `by_ref` method (Matt Corallo)
2364e1a877 Stop relying on blanket Read impl for all &mut Read (Matt Corallo)
6aa7ccf841 [IO] Replace `std::io::Sink` usage with our own trivial impl (Matt Corallo)
7eb5d65bda [IO] Provide a macro which implements `io::Write` for types (Matt Corallo)
ac678bb435 [IO] Move to custom `Write` trait mirroring `std::io::Write` (Matt Corallo)
5f2395ce56 Add missing `?Sized` bounds to `io::Write` parameters (Matt Corallo)
2348449d2a Stop relying on `std::io::Write`'s `&mut Write` blanket impl (Matt Corallo)
5e0209569c Use `io::sink` rather than our custom `EmptyWrite` utility (Matt Corallo)
a0ade883b6 [IO] Move io module into selected re-exports (Matt Corallo)
27c7c4e26a Add a `bitcoin_io` crate (Matt Corallo)
Pull request description:
In order to support standard (de)serialization of structs, the
`rust-bitcoin` ecosystem uses the standard `std::io::{Read,Write}`
traits. This works great for environments with `std`, however sadly
the `std::io` module has not yet been added to the `core` crate.
Thus, in `no-std`, the `rust-bitcoin` ecosystem has historically
used the `core2` crate to provide copies of the `std::io` module
without any major dependencies. Sadly, its one dependency,
`memchr`, recently broke our MSRV.
Worse, because we didn't want to take on any excess dependencies
for `std` builds, `rust-bitcoin` has had to have
mutually-exclusive `std` and `no-std` builds. This breaks general
assumptions about how features work in Rust, causing substantial
pain for applications far downstream of `rust-bitcoin` crates.
This is mostly done, I'm still finalizing the `io::Error` commit at the end to drop the `core2` required dep in no-std, but its getting there. Would love further feedback on the approach or code-level review on these first handful of commits.
ACKs for top commit:
tcharding:
ACK add371d263
apoelstra:
ACK add371d263
Kixunil:
ACK add371d263
Tree-SHA512: 18698ea8b1b65108ee0f695d5062d2562c8df2f50bf85d93442648da3b35a4184a5d5d2a493aed0adaadc83f663f0cd2ac735c34941cc9a6fa58d826e548e091
7d695f6b41 Improve public re-exports (Tobin C. Harding)
33774122e0 Remove public re-exports from private module (Tobin C. Harding)
Pull request description:
Improve the public exports in two ways:
1. Inline re-exports into the docs of the module that re-exports them.
2. Separate public and private use statements
Recently we discussed a way to separate the public and private import statements to make the code more clear and prevent `rustfmt` joining them all together.
Separate public exports using a code block and `#[rustfmt::skip]`. Has the nice advantage of reducing the number of `#[doc(inline)]` attributes also.
1. Modules first, as they are part of the project's structure.
2. Private imports
3. Public re-exports (using `rustfmt::skip` to prevent merge)
Use the format
```rust
mod xyz;
mod abc;
use ...;
pub use {
...,
};
```
This patch introduces changes to the rendered HTML docs.
ACKs for top commit:
apoelstra:
ACK 7d695f6b41
Tree-SHA512: dc9121c0fe282e3035d862beadb89e2d5a374a7dab6b1c3147a9b5960f8bc2f5af49892f0f713f55c645c46f53464c32daf390c11d85c75553b3ea7e0efc8246
Since we are no longer relying on the blanket `io::Write` impl for
`&mut io::Write`, we should now ensure that we do not require
`Sized` for our `io::Write` bounds, as its unnecessarily
restrictive and can no longer be worked around by simply adding an
`&mut`.
`std::io::Write` is implemented for all `&mut std::io::Write`. This
makes it easy to have APIs that mix and match owned `Write`s with
mutable references to `Write`s.
However, in the next commit we add our own `Write` trait which we
intend to implement for all `std::io::Write`. Sadly, this is
mutually exclusive with a blanket implementation on our own
`&mut Write`, as that would conflict with an `std::io::Write`
blanket impl.
Thus, in order to use the `Write for all &mut Write` blanket impl
in rust-bitcoin, we'd have to bound all `Write`s by
`std::io::Write`, as we're unable to provide a blanket
`Write for &mut Write` impl.
Here we stop relying on that blanket impl in order to introduce the
new trait in the next commit.
e21ee381bc Split Prevouts errors out into specific error types (Tobin C. Harding)
Pull request description:
Done as part of the great error clean up.
Currently we are returning a general `Error` from `Prevouts` functions, this is un-informative, we can do better by returning specific types that indicate the exact error path.
ACKs for top commit:
Kixunil:
ACK e21ee381bc
apoelstra:
ACK e21ee381bc
Tree-SHA512: 2a4900f9e31584ad2b6faafa17ea98742fff9206ee1bf77ed29624e0c7b05e655b3b6bf3710e2da26b0b2b8bd5eb36fdd81decbb1f55b41f153f0fbcc4a9165e
Improve the public exports in two ways:
1. Inline re-exports into the docs of the module that re-exports them.
2. Separate public and private use statements
Recently we discussed a way to separate the public and private import
statements to make the code more clear and prevent `rustfmt` joining
them all together.
Separate public exports using a code block and `#[rustfmt::skip]`. Has
the nice advantage of reducing the number of `#[doc(inline)]` attributes
also.
1. Modules first, as they are part of the project's structure.
2. Private imports
3. Public re-exports (using `rustfmt::skip` to prevent merge)
Use the format
```rust
mod xyz;
mod abc;
use ...;
pub use {
...,
};
```
This patch introduces changes to the rendered HTML docs.
Done as part of the great error clean up.
Currently we are returning a general `Error` from `Prevouts` functions,
this is un-informative, we can do better by returning specific types
that indicate the exact error path.
We have a new API function available with recent version of `secp256k1`
to create a `Message` directly from a sighash byte array.
Use `Message::from_digest(sighash.to_byte_array())` to construct
messages ready to sign.
Upgrade the `secp256k1` dependency to the newly released `v0.28.0`.
FTR this includes two simple changes:
- Use `Message::from_digest_slice` instead of `Message::from_slice`.
- Use `secp256k1::Keypair` instead of `secp256k1::KeyPair`.
In preparation for updating the secp dependency to v0.28.0, which
includes a change of `KeyPair` to `Keypair`, change our identifier usage
to indicate that "keypair" is a single word.
Deprecate the old forms.
8eff4d0385 Remove private hex test macro (Tobin C. Harding)
Pull request description:
We have this macro in `hex-conservative` now, remove the version here.
This patch does not change the public API and only touches test code.
ACKs for top commit:
apoelstra:
ACK 8eff4d0385
clarkmoody:
ACK 8eff4d0385
Tree-SHA512: 93a08fff778930071cd1a28c19202e4a94ca8881b2e873538de2e942b71c2cd6184ed6364c572538a8a699295a71761c6f836accaf251a15683138b71f148fab
On our way to v1.0.0 we are defining a standard for our error types,
this includes:
- Uses the following derives (unless not possible, usually because of `io::Error`)
`#[derive(Debug, Clone, PartialEq, Eq)]`
- Has `non_exhaustive` unless we really know we can commit to not adding
anything.
Furthermore, we are trying to make the codebase easy to read. Error code
is write-once-read-many (well it should be) so if we make all the error
code super uniform the users can flick to an error and quickly see what
it includes. In an effort to achieve this I have made up a style and
over recent times have change much of the error code to that new style,
this PR audits _all_ error types in the code base and enforces the
style, specifically:
- Is layed out: definition, [impl block], Display impl, error::Error impl, From impls
- `error::Error` impl matches on enum even if it returns `None` for all variants
- Display/Error impls import enum variants locally
- match uses *self and `ref e`
- error::Error variants that return `Some` come first, `None` after
Re: non_exhaustive
To make dev and review easier I have added `non_exhaustive` to _every_
error type. We can then remove it error by error as we see fit. This is
because it takes a bit of thinking to do and review where as this patch
should not take much brain power to review.
We would like the codebase to be optimized for readability not ease of
development, as such code that is write-once-read-many should not use
macros.
Currently we use the `impl_std_error` macro to implement
`std::error::Error` for struct error types. This makes the code harder
to read at a glance because one has to think what the macro does.
Remove the `impl_std_error` macro and write the code explicitly.
There is no logical default for the transaction version number, there is
only pre-bip68 (v1) and post-bip68 (v2). Uses should specify the version
they want not rely on us making the choice.
(I originally added this impl to support testing, this was in hindsight
the wrong thing to do, props to Sanket for noticing.)
BIP-68 activated a fair while ago (circa 2019) and since then only
transaction versions 1 and 2 have been considered standard.
Currently in our `Transaction` struct we use an `i32`, this means users
can construct a non-standard transaction if they do not first look up
what the value should be. We can help folk out here by abstracting over
the version number.
Since the version number only governs standardness elect to make the
inner `i32` public (ie., not an invariant). The aim of the type is to
make life easy not restrict what versions are used.
Add transaction::Version data type that simply provides two consts `ONE`
and `TWO`.
Add a `Default` impl on `Version` that returns `Version::TWO`.
In tests that used version 0, instead use `Version::default` because the
test obviously does not care.
Recently we deprecated the `segwit_signature_hash` function but during
development the deprecation notice got stale.
Fix deprecation notice to use the actual function names.
The `ThirtyTwoByteHash` trait is defined in `secp256k1` and used in
`hashes` as well as `bitcoin`. This means that we must use the same
version of `hashes` in both `bitcoin` and `secp256k1`. This makes doing
release difficult.
Remove usage of `ThirtyTwoByteHash` and use `Message::from_slice`.
Include TODO above each usage because as soon as we release the new
version of secp we can use the new `Message::from_digest`.
This is step backwards as far as type safety goes and it makes the code
more ugly as well because it uses `expect` but thems the breaks.
The word "segwit" refers to segwit v0 and taproot but currently we have
`segwit_signature_hash` that is version specific (segwit v0).
- Rename `segwit_encode_signing_data_to` to
`segwit_v0_encode_signing_data_to`
- Add `p2wpkh_signature_hash` and `p2wsh_signature_hash` functions
We keep the single encode function because the error handling is better
that way.
While we are at it test the bip-143 test vectors against all the
sighash types of wrapped p2wsh.
27b3c1e0e6 Improve the ScriptHash and WScriptHash types (Tobin C. Harding)
2197f1377f Improve PubkeyHash and WPubkeyHash (Tobin C. Harding)
Pull request description:
Total re-write since review. Now this PR moves the hash type definitions out of `hash_types`. Please see https://github.com/rust-bitcoin/rust-bitcoin/issues/1909#issuecomment-1603634440 for more.
No longer adds unit tests.
Fix: #1909
ACKs for top commit:
apoelstra:
ACK 27b3c1e0e6
Tree-SHA512: 216b9bed05d1a4a4fc493262664ceb5d60f9c30685b63d6f6675d21a7bf811053320a002165487b29599c52f345057d9c92babb0fc1ccd4628671ec468c804f9
50ada8298f Move EncodeSigningDataResult to sighash module (Tobin C. Harding)
1b7dc51ccb Remove deprecated code (Tobin C. Harding)
Pull request description:
We only keep deprecated code around for one release so we can now remove code deprecated in v0.30.0
Done in preparation as we gear up for v0.31.0 release.
ACKs for top commit:
apoelstra:
ACK 50ada8298f
sanket1729:
ACK 50ada8298f
Tree-SHA512: 40769258605563e2e12a6118306655fc9a012ae1f86509fca757ca411f0cef74480b7bb7b0db147f30a7d362b8494a077d5ec04f719351661ceb5a0697a5369d
3c0bb63423 Do trivial rustdoc improvements (Tobin C. Harding)
3225aa9556 Use defensive documentation (Tobin C. Harding)
80d5d6665a crypto: key: Move error code to the bottom of the file (Tobin C. Harding)
fe3b1e1140 Move From for Error impl (Tobin C. Harding)
5f8e0ad67e Fix docs on error type (Tobin C. Harding)
f23155aa16 Do not capitalize error messages (Tobin C. Harding)
ae07786c27 Add InvalidSighashTypeError (Tobin C. Harding)
baba0fde57 Put NonStandardSighashTypeError inside ecdsa::Error variant (Tobin C. Harding)
6c9d9d9c36 Improve error display imlps (Tobin C. Harding)
22c7aa8808 Rename non standard sighash error type (Tobin C. Harding)
Pull request description:
EDIT: The commit hashes below are stale but the text is valid still.
In an effort to "perfect" our error handling, overhaul the error handling in the `crypto` module.
The aim is to do a small chunk so we can bikeshed on it then I can apply the learnings to the rest of the codebase.
Its all pretty trivial except:
- commit `4c180277 Put NonStandardSighashTypeError inside ecdsa::Error variant`
- comimt `5a196535 Add InvalidSighashTypeError`
- commit `05772ade Use defensive documentation`
Particularly the last one might be incorrect/controversial.
Also, please take the time to check the overall state of error code in the `crypto` module on this branch in case there is anything else we want to do.
Thanks
ACKs for top commit:
apoelstra:
ACK 3c0bb63423
Tree-SHA512: 7e5f8590aec5826098d4d8d33351a41b10c42b6379ff86e5b889e73271b71921fc3ca9525baa5da53e07fa2e961e710393694e04658a8243799950b4604caf43
Improve the pubkey hash types by doing:
- Define the types in the `crypto::key` module
- Add From<&PublicKey> impl for `PubkeyHash`
Keep the current crate level re-export so this does not impact the
public API _if_ people are using the re-export but is still a breaking
change.
The `network` module deals with data types and logic related to
internetworking bitcoind nodes, this is commonly referred to as the p2p
layer.
Rename the `network` module to `p2p` and fix all the paths.
Only commit in the docs and error messages to what we _really_ know.
In an attempt to reduce the likelyhood of the code going stale only
commit to what is guaranteed - that we have an error from a module.
This does arguably reduce the amount of context around the error.
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.
Error types conventionally include `Error` as a suffix.
Rename `NonStandardSighashType` to `NonStandardSighashTypeError`.
While we are at it make the inner type private to the crate, there is no
need to leak the inner values type.
As part of an ongoing effort to make our error types stable and useful
add a stand set of derives to all error types in the library.
`#[derive(Debug, Clone, PartialEq, Eq)]`
Add `Copy` if possible and the error type does not include
`#[non_exhaustive]`.
If an error type includes `io::Error` it only gets `#[derive(Debug)]`.
bb8bd16302 internals: Remove hex module (Tobin C. Harding)
2268b44911 Depend on hex-conservative (Tobin C. Harding)
db50509cd3 Add usage docs to the "core2" feature (Tobin C. Harding)
Pull request description:
Use the newly released `hex-conservative` crate, by doing 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`
- Remove all the old hex code from `internals`
- Remove the now unused `internals::prelude`
- Fix all the import statements (makes up the bulk of the lines changes in this patch)
ACKs for top commit:
apoelstra:
ACK bb8bd16302
sanket1729:
utACK bb8bd16302
Tree-SHA512: ec83b3941cae6f32272471779f28461bb04959a3f6a126a68bbf2c748d83ff9518ff8932d9e937a6f389c10028bf3eb58c6b6d71ea066924dd7a34faaec7a087
This type was defined in the `transaction` module because it was
originally used in a function that had been deprecated in favour of
moving the logic to the `sighash` module.
We just removed the deprecated code so we can now move this type to the
`sighash` module where it is used.
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)
Andrew Poelstra
Matt Corallo
Tobin C. Harding
Steven Roose