Fix#1020 (see more relevant discussion there)
This definitely makes the amount of generics compiler
has to generate by avoding generating the same functions
for `R`, &mut R`, `&mut &mut R` and so on.
old:
```
> ls -al target/release/deps/bitcoin-07a9dabf1f3e0266
-rwxrwxr-x 1 dpc dpc 9947832 Jun 2 22:42 target/release/deps/bitcoin-07a9dabf1f3e0266
> strip target/release/deps/bitcoin-07a9dabf1f3e0266
> ls -al target/release/deps/bitcoin-07a9dabf1f3e0266
-rwxrwxr-x 1 dpc dpc 4463024 Jun 2 22:46 target/release/deps/bitcoin-07a9dabf1f3e0266
```
new:
```
> ls -al target/release/deps/bitcoin-07a9dabf1f3e0266
-rwxrwxr-x 1 dpc dpc 9866800 Jun 2 22:44 target/release/deps/bitcoin-07a9dabf1f3e0266
> strip target/release/deps/bitcoin-07a9dabf1f3e0266
> ls -al target/release/deps/bitcoin-07a9dabf1f3e0266
-rwxrwxr-x 1 dpc dpc 4393392 Jun 2 22:45 target/release/deps/bitcoin-07a9dabf1f3e0266
```
In the unit-test binary itself, it saves ~100KB of data.
I did not expect much performance gains, but turn out I was wrong(*):
old:
```
test blockdata::block::benches::bench_block_deserialize ... bench: 1,072,710 ns/iter (+/- 21,871)
test blockdata::block::benches::bench_block_serialize ... bench: 191,223 ns/iter (+/- 5,833)
test blockdata::block::benches::bench_block_serialize_logic ... bench: 37,543 ns/iter (+/- 732)
test blockdata::block::benches::bench_stream_reader ... bench: 1,872,455 ns/iter (+/- 149,519)
test blockdata::transaction::benches::bench_transaction_deserialize ... bench: 136 ns/iter (+/- 3)
test blockdata::transaction::benches::bench_transaction_serialize ... bench: 51 ns/iter (+/- 8)
test blockdata::transaction::benches::bench_transaction_serialize_logic ... bench: 5 ns/iter (+/- 0)
test blockdata::transaction::benches::bench_transaction_size ... bench: 3 ns/iter (+/- 0)
```
new:
```
test blockdata::block::benches::bench_block_deserialize ... bench: 1,028,574 ns/iter (+/- 10,910)
test blockdata::block::benches::bench_block_serialize ... bench: 162,143 ns/iter (+/- 3,363)
test blockdata::block::benches::bench_block_serialize_logic ... bench: 30,725 ns/iter (+/- 695)
test blockdata::block::benches::bench_stream_reader ... bench: 1,437,071 ns/iter (+/- 53,694)
test blockdata::transaction::benches::bench_transaction_deserialize ... bench: 92 ns/iter (+/- 2)
test blockdata::transaction::benches::bench_transaction_serialize ... bench: 17 ns/iter (+/- 0)
test blockdata::transaction::benches::bench_transaction_serialize_logic ... bench: 5 ns/iter (+/- 0)
test blockdata::transaction::benches::bench_transaction_size ... bench: 4 ns/iter (+/- 0)
```
(*) - I'm benchmarking on a noisy laptop. Take this with a grain of salt. But I think
at least it doesn't make anything slower.
While doing all this manual labor that will probably generate conflicts,
I took a liberty of changing generic type names and variable names to
`r` and `R` (reader) and `w` and `W` for writer.
Clippy warns about creating a reference that is immediately
de-referenced.
Remove unnecessary explicit `&`, while we are at it remove unnecessary
explicit types that appear on the same lines of code.
57dd6739c3 Do not print error when displaying for std builds (Tobin C. Harding)
b80cfeed85 Bind to error_kind instead of e (Tobin C. Harding)
241ec72497 Bind to b instead of e (Tobin C. Harding)
01f481bf5c Bind to s instead of e (Tobin C. Harding)
5c6d369289 network: Remove unused error variants (Tobin C. Harding)
e67e97bb37 Put From impl below std::error::Error impl (Tobin C. Harding)
6ca98e5275 Remove error TODO (Tobin C. Harding)
Pull request description:
As part of the ongoing error improvement work and as a direct result of [this comment](https://github.com/rust-bitcoin/rust-bitcoin/pull/987#issuecomment-1135563287) improve the `Display` implementations of all our error types so as to not repeat the source error when printing.
The first 5 patches are trivial clean ups around the errors. Patch 6 is the real work.
EDIT: ~CC @Kixunil, have I got the right idea here bro?~ Patch 6 now includes a macro as suggested.
ACKs for top commit:
Kixunil:
ACK 57dd6739c3
apoelstra:
ACK 57dd6739c3
sanket1729:
ACK 57dd6739c3. Did not check if we covered all cases. We need to remember to use `write_err!` instead of `write!` in future.
Tree-SHA512: 1ed26b0cc5f9a0f71684c431cbb9f94404c116c9136be696434c56a2f56fd93cb5406b0955edbd0dc6f8612e77345c93fa70a70650118968cc58e680333a41de
2e7effc604 Feature `use-serde` renamed to `serde` (Martin Habovstiak)
Pull request description:
Features activating external crates are supposed to have same name as
those crates. However we depend on same feature in other crates so we
need a separate feature. After MSRV bump it is possible to rename the
crates and features so we can now fix this inconsistency.
Sadly, derive can't see that the crate was renamed so all derives must
be told to use the other one.
Replaces #373
ACKs for top commit:
apoelstra:
ACK 2e7effc604
Tree-SHA512: b20364b9e8f30c2269bef915e821b2b2ec929e71dd0e88af2bc3a021821f87011d35e095cb8efe99add77a23dde940a17537eb387fb4582b05c57c8679969eb0
Adding an error variant to a public enum is an API breaking change, this
means making what could be small refactorings or improvements harder. If
we use `non_exhaustive` for error types then we mitigate this cost.
There is a tradeoff however, downstream users who explicitly match on
our public error types must include a wildcard pattern.
We implement `source` for all our error types. This means that we should
not display the source error explicitly because users can call `source`
to get the source error.
However, `std::Error::source()` is only available for "std" builds, so
that we do not loose the error source information in "no-std" builds add
a macro that conditionally adds the source onto the error message.
Features activating external crates are supposed to have same name as
those crates. However we depend on same feature in other crates so we
need a separate feature. After MSRV bump it is possible to rename the
crates and features so we can now fix this inconsistency.
Sadly, derive can't see that the crate was renamed so all derives must
be told to use the other one.
97a5bb1439 Implement std::error::source codebase wide (Tobin C. Harding)
0a9191b429 Add parenthesis around left hand side of companion (Tobin C. Harding)
7cf8af2f86 Put Error impl block below Display (Tobin C. Harding)
2384712364 Re-order Display match arms (Tobin C. Harding)
Pull request description:
Now that we have MSRV of 1.41.1 we should use `source` instead of `cause`. Audit the whole codebase and implement `source` for _every_ error type we have.
The first three patches are preparatory cleanup, patch 3 is particularly shameful (adds parenthesis to make my editor work).
CC @Kixunil because he is championing the error stuff.
ACKs for top commit:
apoelstra:
ACK 97a5bb1439
Tree-SHA512: 46313a28929445f32e01e30ca3b0246b30bc9d5e43db5754d4b441e9c30d3e427efaf247100eb6b452f98beec5a4fcde1daba7943a772114aa34f78ab52cbc60
Improve documentation in `psbt/mod.rs` by doing:
- Use full sentences (full stops and capitalisation)
- Use 100 line column width
- Use back ticks and links as appropriate
- Use `Errors` section
- Use third person tense to describe functions
Use cargo to upgrade from edition 2015 to edition 2018.
cargo fix --edition
No manual changes made. The result of the command above is just to fix
all the use statements (add `crate::`) and fix the fully qualified path
formats i.e., `::Foo` -> `crate::Foo`.
5afb0eaf40 API to get an iterator for funding utxos in psbt (violet360)
Pull request description:
### Current status
The API returns a vector of UTXOs and has return type `Result<Vec<&TxOut>, Error>`
### Expected
The return statement should be of type `sighash::Prevouts` as pointed in #849
ACKs for top commit:
Kixunil:
ACK 5afb0eaf40
tcharding:
ACK 5afb0eaf40
sanket1729:
ACK 5afb0eaf40. Thanks for being patient with this.
Tree-SHA512: 724fc3dffdbb1331584f89bbe84527e1af0d193a344fe43b36f2f2a628652d259001a3abf6b3909df53524cd3fbdbe3af760b7004d40d3bee1848fbb83efff5b
Programmers are inherently lazy and for good reason. I'm yet to see
anyone write `PartiallySignedTransaction` in code that uses
`rust-bitcoin`, its too obvious to add a type alias for PSBTs, let's
just do it ourselves to save everyone else having to do so.
Add public type alias `Psbt` for `PartiallySignedTransaction`.
Recently we added a bunch of additional sighash types, some of the code
comments became stale. Use the non-specific term 'sighash type' instead
of a particular sighash identifier in comments to make the comments more
applicable.
Our usage of `SigHash` implies that 'sighash' is _two_ words; 'sighash'
is a well known word in the Bitcoin ecosystem it should appear in
identifiers as `Sighash`.
Rename `PsbtSigHashType` to `PsbtSighashType`.
Our usage of `SigHash` implies that 'sighash' is _two_ words; 'sighash'
is a well known word in the Bitcoin ecosystem it should appear in
identifiers as `Sighash`.
Rename `EcdsaSigHashType` to `EcdsaSighashType`.
In this library we specifically do not use rustfmt and tend to favour
terse statements that do not use extra lines unnecessarily. In order to
help new devs understand the style modify code that seems to use an
unnecessary number of lines.
None of these changes should reduce the readability of the code.
Do various whitespace refactorings, of note:
- Use space around equals e.g., 'since = "blah"'
- Put return/break/continue on separate line
Whitespace only, no logic changes.
Recently we (*cough* Tobin) made the `Map` trait private and neglected
to add a public API for combining together two PSBTs. Doing so broke the
`psbt` module.
Pull the merge logic out of the `Map` trait and put it in methods on
each individual type (`Input`, `Output`, `PartiallySignedTransaction`).
Doing so allows for simplification of return types since combining
inputs/outputs never errors.
Use the term 'combine' instead of 'merge' since that is the term used in
BIP 174.
We currently have the `map` module private but containing a bunch of
types that are needed in the public API (specifically in a
`PartiallySignedTransaction`).
Re-export the publicly required types to the `psbt` module and then
again at the root level of `rust-bitcoin` as we do for other types.
abe52f681b Cleanup/Dedup psbt (De)Serialization code (sanket1729)
fbd86dcf63 Update documentation of EcdsaSig::from_slice (sanket1729)
85009a7b50 Update documentation of from_u32_consensus (sanket1729)
0fed04e2d5 Change EcdsaSig hash type deser (sanket1729)
Pull request description:
Changes the parsing behavior in PSBT on non-standard sighash types to give an explicit error, rather than silently mangling the parsed value
ACKs for top commit:
dr-orlovsky:
ACK abe52f681b
apoelstra:
ACK abe52f681b
Kixunil:
ACK abe52f681b
Tree-SHA512: 1d5dbe3aa5885ca16649cf8ea05a7476e8dd977dd870b79358d97a3ce383bee93754d2b88163e7db3792cdc4b9cb867356409c8eea4e110877577ad196ba0786
The `Map` trait has been deemed confusing and not that useful to users
of the library, we still use it internally within the `psbt` module
though so make it visible only in `psbt` and `psbt::map`.
Fourth step in implementation of Schnorr key support after #588.
While PSBT BIP174 does not specify whether uncompressed keys are supported in BIP32-related fields, from BIP32 it follows that it is impossible to use uncompressed keys within the extended keys. This PR fixes this situation and is a companion to BIP174 PR clarifying key serialization: https://github.com/bitcoin/bips/pull/1100
cf0c48cc86 Improve Debug for PrivateKey (Dr Maxim Orlovsky)
b65a6ae49b Test for extended private key keypair generation f5875a (Dr Maxim Orlovsky)
e6a3d603c9 BIP32 extended key `to_ecdsa()` and `to_schnorr()` methods (Dr Maxim Orlovsky)
b72f56c4ae BIP32 extended keys are using Scep256k1 keys instead of bitcoin ECDSA (Dr Maxim Orlovsky)
Pull request description:
This is third step required to introduce Schnorr key support according to #588. This PR starts API-breaking changes and is follow-up to non-API breaking #589, which is already merged.
PR rationale: BIP32 does not support uncompressed keys and using type with compression flag was a mistake
ACKs for top commit:
apoelstra:
ACK cf0c48cc86
sanket1729:
ACK cf0c48cc86. #757 might need rework after this
Tree-SHA512: 6356a65004e7517256bacbf9aaeb69a22fd8536b341e567c5c4e819288e1105d083fe12ac0641404c407c97acf039bdc525f8e02b1b594a6cdda90106f3b1bdc
7d982fa9a2 Add all tests from BIP 371 (sanket1729)
d22e0149ad Taproot psbt impl BIP 371 (sanket1729)
108fc3d4db Impl encodable traits for TapLeafhash (sanket1729)
c7478d8fd0 Derive serde for taproot stuctures (sanket1729)
Pull request description:
Built on top of #677 . Will rebase and mark ready for review after #677 is merged.
ACKs for top commit:
apoelstra:
ACK 7d982fa9a2
dr-orlovsky:
re-tACK 7d982fa9a2 basing on `git range-diff`. The original PR before last re-base was tested commit-by-commit.
Tree-SHA512: feb30e4b38d13110a9c0fabf6466d8f0fb7df09a82f4e01d70b8371b34ab0187004a6c63f9796c6585ee30841e8ee765ae9becae139d2e1e3d839553d64c3d1e
Witness struct is in place of the Vec<Vec<u8>> we have before this commit.
from_vec() and to_vec() methods are provided to switch between this type and Vec<Vec<u8>>
Moreover, implementation of Default, Iterator and others allows to have similar behaviour but
using a single Vec prevent many allocations during deserialization which in turns results in
better performance, even 20% better perfomance on recent block.
last() and second_to_last() allows to access respective element without going through costly Vec
transformation
55c627715f Moving globals into PSBT struct (Dr Maxim Orlovsky)
Pull request description:
I took the most non-invasive approach to reduce diff size. Many parts of the code can be improved in style or further refactored (like some functions are not necessary and can be just moved to be part of other functions), but I'd prefer to do that as a separate PR once this will be merged.
My approach with this PR:
1. Remove `Global` struct by moving its fields right into `PartiallySignedTransaction` - but keep the `util/psbt/map/global.rs` file with all its logic
2. Keep existing `Map for Global` implementation in the same file, but just change it to `Map for PartiallySignedTransaction`
3. With serialization, convert `Global` deserialization into crate-private function and use it from `PartiallySignedTransaction` deserialization
4. Refactor the tests and imports as required to get the thing compile and pass tests
The refactoring will be followed by PR(s) adding support for Taproot
ACKs for top commit:
apoelstra:
ACK 55c627715f
sanket1729:
ACK 55c627715f . Reviewed range diff with ac0c908 that I previously ACKed
Tree-SHA512: 79b329b6e4e60af905e4e00507d6abc558261d921bcf8f5d4ee34dd685322d7a529b18015423da50a388ba6732b7b662a92bc95ad078228cc809254ad010d467
Docs can always do with a bit of love.
Clean up the module level (`//!`) rustdocs for all public modules.
I claim uniform is better than any specific method/style. I tried to fit
in with what ever was either most sane of most prevalent, therefore
attaining uniformity without unnecessary code churn (one exception being
the changes to headings described below).
Notes:
* Headings - use heading as a regular sentence for all modules e.g.,
```
//! Bitcoin network messages.
```
as opposed to
```
//! # Bitcoin Network Messages
```
It was not clear which style to use so I picked a 'random' mature
project and copied their style.
* Added 'This module' in _most_ places as the start of the module
description, however I was not religious about this one.
* Fixed line length if necessary since most of our code seems to follow
short (80 char) line lengths for comments anyways.
* Added periods and fixed obvious (and sometimes not so obvious)
grammatically errors.
* Added a trailing `//!` to every block since this was almost universal
already. I don't really like this one but I'm guessing it is Andrew's
preferred style since its on the copyright notices as well.
Dawid Ciężarkiewicz
Tobin C. Harding
sanket1729
Martin Habovstiak
Andrew Poelstra
Riccardo Casatta
violet360
Dr Maxim Orlovsky