Commit Graph

711 Commits

Author SHA1 Message Date
Alec Matusis fc167097aa Added examples for sighash computations
So far computed sighashes for:
 - P2WPKH
 - P2MS
 - P2SH multisig
 - P2WSH multisig.

TODOs:
  - Add P2TR script-path multisig and key-path examples
2023-06-20 02:07:21 -07:00
Tobin C. Harding 6881080f8e
Fix incorrect comment in ci script
MSRV build breaks because of edition _2021_ not 2018.
2023-06-20 13:34:38 +10:00
Tobin C. Harding e04ac1e743
Add a verify function to PublicKey
Expose signature verification functionality for ECDSA signatures on the
`PublicKey` type.

We should have an identical function on `XOnlyPublicKey` but this will
have to be done in `secp2561`.
2023-06-20 05:08:07 +10:00
sanket1729 de7fe5e4ec
Merge rust-bitcoin/rust-bitcoin#1739: Mutate mul_u64 with mutagen
7cdc90565f Mutate mul_u64 with mutagen (Tobin C. Harding)

Pull request description:

  Add the `mutate` attribute to mutate `mul_u64`. Add non-doc comments listing the two false positives. These are identical but we list them twice so when devs grep for `mutagen false pos` the same number of lines for each function is displayed as is displayed by the `mutagen` run. This coding false positives thing is also introduced in PR #1655.

ACKs for top commit:
  apoelstra:
    ACK 7cdc90565f
  sanket1729:
    utACK 7cdc90565f

Tree-SHA512: d066beb2f9ba198f5af36258ba15cfbd2c7c9ce7596f6340ed1fe2f62a2b0b5296eeb2cb4be30146d019671f1858521c29db917936895b5b3fd36bdb0bd07e57
2023-06-14 17:53:39 -07:00
Andrew Poelstra b1078febc2
Merge rust-bitcoin/rust-bitcoin#1870: Add from_int_btc method to Amount
9f7449b572 Use from_int_btc function for const context (yancy)
f93e67977a Add from_int_btc function to Amount (yancy)

Pull request description:

  Followup PR from https://github.com/rust-bitcoin/rust-bitcoin/pull/1811

  Added a `const` associated function `from_int_btc()` for Amount.  `panic()` in const context is only available after 1.57+ so a work around is provided.

ACKs for top commit:
  tcharding:
    ACK 9f7449b572
  apoelstra:
    ACK 9f7449b572

Tree-SHA512: 7755234f2e573577d754f0224083cb7acc059e58833790fe344b0d9bad0acd89b0f74054d9efcba2133576222c7e9ab8dc3d81ddc10fbdcd4f83638d697118c4
2023-06-14 01:17:59 +00:00
yancy 9f7449b572 Use from_int_btc function for const context 2023-06-13 11:32:58 +02:00
yancy f93e67977a Add from_int_btc function to Amount 2023-06-13 11:32:51 +02:00
Andrew Poelstra 79bd294476
Merge rust-bitcoin/rust-bitcoin#1901: key: Implement From<PublicKey> for XOnlyPublicKey
445aa84f8c cargo fmt (Andrew Poelstra)
d990084481 key: Implement From<PublicKey> for XOnlyPublicKey (Steven Roose)

Pull request description:

ACKs for top commit:
  tcharding:
    ACK 445aa84f8c
  apoelstra:
    ACK 445aa84f8c

Tree-SHA512: c27b23dcf66139720011dc8bee379a8e4be642f8f60e8982c643013e163ad1610d355c6f5de04efc57d0dc11ba4ff0e893d3f760d5662d8f0c7eaba87f0a89a0
2023-06-12 23:49:45 +00:00
Andrew Poelstra 445aa84f8c
cargo fmt 2023-06-12 13:01:12 +00:00
roy9495 654f58da17
This library is not solely dependent on Rust 2023-06-08 20:03:17 +00:00
Andrew Poelstra 0750168c4f
Merge rust-bitcoin/rust-bitcoin#1297: `alloc`-free parse errors
2b6bcf085c Implement support for `alloc`-free parse errors (Martin Habovstiak)
783e1e81dc Move `impl_std_error` to `bitcoin-internals` (Martin Habovstiak)

Pull request description:

  This implements various helpers for parse errors that will not require `alloc`. This PR is useless while all of the crates require `alloc` and is thus a draft so that you can look at the design.

ACKs for top commit:
  tcharding:
    ACK 2b6bcf085c
  apoelstra:
    ACK 2b6bcf085c

Tree-SHA512: 776838a754b2c17263cf167c8cf8a3e69e51d8de45eb08d072ef930cbd1149360da2cb5fc430ce58f31c2b07dbf06c9f8384c567358873a3440e85632fcc2af8
2023-06-07 18:45:54 +00:00
Andrew Poelstra 12dc0b013b
Merge rust-bitcoin/rust-bitcoin#1863: Removed only available in 1.46.0 line
6a18997e3c Removed only available in 1.46.0 line (TATHAGATA ROY)

Pull request description:

  Fix: #1850

  Removed "*Important: only available in Rust 1.46+*" on the file  transaction.rs from lines 1288 and 1407 respectively.

ACKs for top commit:
  Kixunil:
    ACK 6a18997e3c
  apoelstra:
    ACK 6a18997e3c
  tcharding:
    ACK 6a18997e3c
  sanket1729:
    ACK 6a18997e3c

Tree-SHA512: 1395384ffe301b628687cc6d154e191b6a4415acd33eb4209065c5bf94115c3210ea1d28f7d7186e41665b39b5bebae849c3fa5394786ce24bdcd57b765cdbd3
2023-06-07 15:22:48 +00:00
Steven Roose d990084481
key: Implement From<PublicKey> for XOnlyPublicKey 2023-06-06 20:24:28 +01:00
Steven Roose 4c18ba779c
network: Implement Default on ServiceFlags 2023-06-06 00:06:28 +01:00
Andrew Poelstra 0266e762bd
Merge rust-bitcoin/rust-bitcoin#1898: Fix comments for #1890
d961b9c4ee Fix minor comments on count_sigops PR (junderw)

Pull request description:

  Fixing some comments that were left on #1890

ACKs for top commit:
  yancyribbens:
    ACK d961b9c4ee
  apoelstra:
    ACK d961b9c4ee
  tcharding:
    ACK d961b9c4ee

Tree-SHA512: caa04428eb7c09915964e4a7bae2d1fca2426317f3620d16e73e992269a99d7adb3d360affb954a173835661a9960cf760d29ae9861816b1a898c01428b0f2d6
2023-06-05 18:16:42 +00:00
junderw d961b9c4ee
Fix minor comments on count_sigops PR 2023-06-04 15:17:36 -07:00
Andrew Poelstra 7eeb3e6a4a
Merge rust-bitcoin/rust-bitcoin#1895: Improve `crytpo::taproot` error type
202d1cd581 Rename taproot::Error to SigFromSliceError (Tobin C. Harding)
29678cb82b Correctly document InvalidSighashType variant (Tobin C. Harding)
13d5c0536b Remove explicit error conversion (Tobin C. Harding)
d86517ae4f taproot: Use error variants locally (Tobin C. Harding)

Pull request description:

  First three patches are preparatory cleanup, last patch renames `crypto::taproot::Error` to `SigFromSliceError`. See commit log for justification of the `Sig` prefix.

  Done as part of the great error cleanup.

ACKs for top commit:
  apoelstra:
    ACK 202d1cd581
  Kixunil:
    ACK 202d1cd581

Tree-SHA512: 87aef07d2a3518c68c070e348d2331a9fbf1dc5cd36fd4d966607ddb0531eca9dc6be08f1923f941d33973f173b915490de9ef0cad724cce7bf108cdc8a82af0
2023-06-04 21:22:21 +00:00
Andrew Poelstra 1a1fe0e313
Merge rust-bitcoin/rust-bitcoin#1890: [script] Add method get_sigop_count
638445f8a9 Feature: Add opcodes::All::decode_pushnum and Script::count_sigops (junderw)

Pull request description:

  Planning to also add methods for the various parts of Transaction etc. to eventually allow for easier sigops calculation.

  Bare multisig is making a comeback, which is causing a large amount of transactions' effective vSizes (for fee calculation) to be dependent on the sigop count.

  This is a first step at making those transactions easier to estimate fees for / template blocks for etc.

ACKs for top commit:
  Kixunil:
    ACK 638445f8a9
  tcharding:
    ACK 638445f8a9

Tree-SHA512: 5e87d0f5ab58ed22ed50e43eac392b9b84ebccab5086553a6234d825766842057ab89bd0753f3c9de50d9ab17536182b8f64a57e8d5632a55494180f2cc26bbd
2023-06-04 19:59:44 +00:00
Martin Habovstiak 2b6bcf085c Implement support for `alloc`-free parse errors
This implements basic facilities to conditionally carry string inputs in
parse errors. This includes:

* `InputString` type that may carry the input and format it
* `parse_error_type!` macro creating a special type for parse errors
* `impl_parse` implementing parsing for various types as well as its
  `serde`-supporting alternative
2023-06-04 21:15:37 +02:00
junderw 638445f8a9
Feature: Add opcodes::All::decode_pushnum and Script::count_sigops 2023-06-02 08:46:46 -07:00
Tobin C. Harding ccb6e3eeba
Rename TaprootSpendInfo::as_script_map to script_map
The `as_script_map` is a getter not a conversion function (to/into/as),
as such it should not include the prefix `as_`.

Deprecate `as_script_map` in favour of `script_map`.
2023-06-02 16:59:08 +10:00
Tobin C. Harding 202d1cd581
Rename taproot::Error to SigFromSliceError
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.
2023-06-02 15:48:45 +10:00
Tobin C. Harding 29678cb82b
Correctly document InvalidSighashType variant
The rustdoc on the `taproot::Error::InvalidSighashType` is wrong, fix
it.
2023-06-02 15:05:41 +10:00
Tobin C. Harding 13d5c0536b
Remove explicit error conversion
We provide a `From<secp255k1::Error>` impl so we do not need to
explicitly convert the error return, just use `?`.
2023-06-02 15:05:38 +10:00
Tobin C. Harding d86517ae4f
taproot: Use error variants locally
Add 'use Error::*' locally to make the code more terse.
2023-06-02 14:48:22 +10:00
Martin Habovstiak 783e1e81dc Move `impl_std_error` to `bitcoin-internals`
The macro is useful for all other crates thus it is moved to the
internals crate in this commit.
2023-05-30 18:04:54 +02:00
Tobin C. Harding 042dcaa4b7
Remove doc(hidden) from error conversion functions
Give people access to the error type conversion docs, its no harm and it
may be useful when the compiler does not give enough information.
2023-05-30 15:54:40 +10:00
Steven Roose 7bf0a106dd
Merge pull request #1872 from tcharding/05-24-rm-prevouts-export
psbt: Remove reexport of Prevouts
2023-05-30 02:48:34 +01:00
Andrew Poelstra 80efdb065a
Merge rust-bitcoin/rust-bitcoin#1873: Improve `hashes::Error`
06afd52a12 Improve hashes::Error (Tobin C. Harding)

Pull request description:

  We are trying to make error types stable on the way to v1.0

  The current `hashes::Error` is a "general" enum error type with a single variant, better to use a struct and make the error usecase specific.

  Improve the `hashes::Error` by doing:

  - Make it a struct
  - Rename to `FromSliceError`
  - Move it to the crate root (remove `error` module)

  Includes usage in `bitcoin`.

ACKs for top commit:
  apoelstra:
    ACK 06afd52a12
  Kixunil:
    ACK 06afd52a12

Tree-SHA512: 20a517daaf3e9e09744e2a65cde6e238c8f2d1224899a6c04142a3a4e635d54112b0a2e846d25256071bb27cb70f7482380f98e9a535a5498aa4c7dc0d52cc54
2023-05-29 22:58:17 +00:00
Andrew Poelstra ca17257884
Merge rust-bitcoin/rust-bitcoin#1882: made ckd_priv function private and impl AsRef for ChildNumber
4be019180b correcting formatting (startup-dreamer)

Pull request description:

  closes #1866

ACKs for top commit:
  Kixunil:
    ACK 4be019180b
  junderw:
    ACK 4be019180b
  apoelstra:
    ACK 4be019180b

Tree-SHA512: 9539c987a9636f3c50dde2d4448ca0c30c239f5a8e852e7bf560cc27a2681777fa1a91ace21bdf1fd67b1f60679dfb8eecef45b81506618285536599ad741f7e
2023-05-29 12:19:09 +00:00
Andrew Poelstra 5729b034d8
Merge rust-bitcoin/rust-bitcoin#1874: Add `ValidationError`
0f74eb6876 Remove the unused crate::Error (Tobin C. Harding)
74154c2294 Add block::ValidationError (Tobin C. Harding)
3a9b5526b3 Move BlockHash From impls (Tobin C. Harding)

Pull request description:

  Remove the `crate::Error` and replace its usage with `block::ValidationError`.

ACKs for top commit:
  apoelstra:
    ACK 0f74eb6876
  Kixunil:
    ACK 0f74eb6876

Tree-SHA512: 80b2c98d3d8f7c3f060c8ea2d94e1ebe118c07d0dcf91f6d13aed00df2cb0b15bf5e295ec0976d88d81e029cf7d3e8e4a1fe70120db57e49bbd8dd229291836b
2023-05-28 23:08:32 +00:00
Andrew Poelstra 7315eac5ee
Merge rust-bitcoin/rust-bitcoin#1871: Fix conditional configuration options usage
0046bb8ad8 Fix usage of cfg(rust_1_53) (Tobin C. Harding)
c3450f3913 Remove stale usage of doc(cfg) (Tobin C. Harding)

Pull request description:

  These build cfg options are not features, fix broken usage. And remove stale docsrs attribute while we are at it. Bad rust-bitcoin devs.

  Found while reviewing #1870

ACKs for top commit:
  apoelstra:
    ACK 0046bb8ad8
  Kixunil:
    ACK 0046bb8ad8

Tree-SHA512: 7053affef6654ff203c93590bf081e165f019feb040aa8c55259ffe4e15eaf0e7522f6e5a4f6f62e8f578420b0313f4b7b17c46b741b7fcfd05750e5c5976589
2023-05-28 22:27:27 +00:00
Andrew Poelstra ce44711219
Merge rust-bitcoin/rust-bitcoin#1879: embedded: Document how to clean up linker flags
3af9258025 embedded: Document how to clean up linker flags (Tobin C. Harding)

Pull request description:

  Our embedded crate includes instructions to source a shell script that sets the `RUSTFLAGS` env var. Having the env var set like this in ones environment breaks linkage when trying to do "regular" builds.

  Document how to clean up.

ACKs for top commit:
  apoelstra:
    ACK 3af9258025
  Kixunil:
    ACK 3af9258025

Tree-SHA512: 72758fba4dede873da299f01d75fd64b549fe21f954c2720ba3b7fc3c29fd4ed28fd0a749bbe987a7de1551aa32192253dd0033a18c877e877c9960343a5b07c
2023-05-28 21:47:03 +00:00
startup-dreamer 4be019180b correcting formatting 2023-05-29 00:26:01 +05:30
Andrew Poelstra ca06d64455
rename bitcoin-private to bitcoin-internals
Since we now have control over the name on crates.io.
2023-05-26 19:49:52 +00:00
Tobin C. Harding 3af9258025
embedded: Document how to clean up linker flags
Our embedded crate includes instructions to source a shell script that
sets the `RUSTFLAGS` env var. Having the env var set like this in ones
environment breaks linkage when trying to do "regular" builds.

Document how to clean up.
2023-05-26 14:39:14 +10:00
Tobin C. Harding 0f74eb6876
Remove the unused crate::Error
The `crate::Error` type is now unused, remove it.
2023-05-25 13:35:49 +10:00
Tobin C. Harding 74154c2294
Add block::ValidationError
Add a `ValidationError` to the `block` module and remove the two
variants out of `crate::Error`.

This error is only used by the `validate_pow` function, a specific error
better serves our purposes.
2023-05-25 13:35:49 +10:00
Tobin C. Harding 3a9b5526b3
Move BlockHash From impls
Move the `From` impls on `BlockHash` to below the `BlockHash` impl
block.

Code move only, no other changes.
2023-05-25 13:32:25 +10:00
Tobin C. Harding 06afd52a12
Improve hashes::Error
We are trying to make error types stable on the way to v1.0

The current `hashes::Error` is a "general" enum error type with a single
variant, better to use a struct and make the error usecase specific.

Improve the `hashes::Error` by doing:

- Make it a struct
- Rename to `FromSliceError`
- Move it to the crate root (remove `error` module)

Includes usage in `bitcoin`.
2023-05-25 13:25:13 +10:00
Tobin C. Harding ab4e6d6f27
psbt: Remove reexport of Prevouts
No idea why this re-export is here, the `Prevouts` type is not even used
in the `psbt` module.

Remove the re-export of `crate::sighash::Prevouts` from `pstb`.
2023-05-24 22:10:40 +10:00
Tobin C. Harding 0046bb8ad8
Fix usage of cfg(rust_1_53)
Our custom conditional configuration options enables for various
versions of the compiler are not features.

Fix the incorrect usage.
2023-05-24 22:03:57 +10:00
Tobin C. Harding c3450f3913
Remove stale usage of doc(cfg)
We no longer need to use `doc(cfg())` because we use `doc_cfg_auto`,
remove it.
2023-05-24 22:02:24 +10:00
Andrew Poelstra b5aa482532
Merge rust-bitcoin/rust-bitcoin#1857: tests: Use script hash functions
013dffa65d tests: Use script hash methods (Tobin C. Harding)

Pull request description:

  The `ScriptBuf` type can be serialized using it's `to_bytes` function. Do not use the `psbt::Serialize` trait to do so in test code.

  No logic changes, since the impl of `psbt::Serialize` for `ScriptBuf` just calls `to_bytes`.

ACKs for top commit:
  Kixunil:
    ACK 013dffa65d
  apoelstra:
    ACK 013dffa65d

Tree-SHA512: 08959e065f1528f2ca69c12d5e34bceea3ddd17eefcee45094f071b3fa7357dbf289f6fe54d18fea02eecd1d0a7cd04598bbf014a5f10676387dbe27bb490395
2023-05-22 20:31:42 +00:00
Andrew Poelstra 8d111f20ef
Merge rust-bitcoin/rust-bitcoin#1864: Add a checked version of weight mul fee_rate
b03c24db8c Add a checked version of weight mul fee_rate (yancy)

Pull request description:

  Add a checked version of fee_rate * weight.  While I like the trait version of just being able to multiply `feerate * weight`, it's not really very useful imo since a large input feerate could cause an overflow.  Instead of changing the trait in https://github.com/rust-bitcoin/rust-bitcoin/pull/1849 (not idiomatic enough I guess) I added a `checked_weight_mul` method to `FeeRate`.

ACKs for top commit:
  apoelstra:
    ACK b03c24db8c
  Kixunil:
    ACK b03c24db8c

Tree-SHA512: 231ade94291becadcea9ea2a40a5daf96b77f01a29cca2494d7bbe4f7de5b412fa8fc816ea249268569f5378410185d9349fd687533bf3a422a752997e107a2b
2023-05-22 19:36:17 +00:00
Tobin C. Harding 013dffa65d
tests: Use script hash methods
We have methods to convert a script to a `WScritpHash` and `ScriptHash`,
no need to do this manually, let alone use the `psbt::Serialize` trait
to do so.
2023-05-20 07:31:54 +10:00
yancy b03c24db8c Add a checked version of weight mul fee_rate 2023-05-19 10:17:57 +02:00
TATHAGATA ROY 6a18997e3c Removed only available in 1.46.0 line 2023-05-18 12:14:38 +00:00
Tobin C. Harding c2f33f60b8
Add changelo entry for removal of FromHex
During the last round of releases (bitcoin 0.30, hashes 0.12) we removed
the `FromHex` implementation from all types except vecs and arrays. We
added `FromStr` impls for types that roundtrip with `Display`.

We never added a changelog mention to either `bitcoin` or `hashes`, lets
retroactively add an entry.

Fix: #1747
2023-05-18 14:18:42 +10:00
Martin Habovstiak 6cec19f6d3 Update documentation of `InputWeightPrediction`
The doc was written before alternative constructors existed, update it.
2023-05-11 20:38:32 +02:00
Martin Habovstiak 6fec1789b9 Fix associated constants of `InputWeightPrediction`
These constants had an error that they had `script_size` set to 0 which
was incorrect because it's not length of the script but serialized size.
Rather than just bumping the value this uses the `from_slice` method
which is less error-prone.

This also deletes a useless test of the constants.

Closes #1834
2023-05-11 20:38:32 +02:00
Martin Habovstiak 0555695757 Fix formatting
This slipped in and is breaking builds.
2023-05-11 13:03:22 +02:00
Riccardo Casatta 2df9b2c8b2
Merge rust-bitcoin/rust-bitcoin#1844: make bip21 schema lowercase
8835d5d2f1 make bip21 schema lowercase (Riccardo Casatta)

Pull request description:

  The spec RFC3986 specifies the scheme is case insensitive and we were uppercasing to optimize QR code representation.
  Unfortunately, common platform such as Android seems to fail to recognize uppercase schema, so for compatibility reason we use lowercase.

  close #1843

ACKs for top commit:
  Kixunil:
    ACK 8835d5d2f1
  apoelstra:
    ACK 8835d5d2f1

Tree-SHA512: 02d228b52fe4df20edb71ba8e2ab8a2bae4b912252e30a3150ee3af74e65a6e91b165c9579273b57e894366c9792a8312ea973723cd8c5d98037aaba80d7cf07
2023-05-11 10:41:35 +02:00
Andrew Poelstra 684e14caee
Merge rust-bitcoin/rust-bitcoin#1768: Allow parsing sub-sat denominations with decimal points
6c6a89b1d1 Add sub-sat fractions parsing regression test (Martin Habovstiak)
f1a3dc6719 Allow parsing sub-sat denoms with decimal points (Martin Habovstiak)
b3d9a267ea Add a few more amount parsing tests (Martin Habovstiak)

Pull request description:

  Numbers with only zeros after decimal points are valid if they are also
  multiples of `10^precision` (e.g. 1000 for msats). These were
  artificially disallowed as "too precise" which was at least misleading.

  This change allows parsing such numbers.

  And yes, I know this is not perfectly efficient (unless the compiler figures out some magic opts) but so isn't the rest of the code. TBH this parsing code drives me crazy and I'd love to rewrite it to be more efficient and readable.

ACKs for top commit:
  apoelstra:
    ACK 6c6a89b1d1

Tree-SHA512: 03cf4b416f2eac25e0aac57ef964ed06fa36c7fe8244bdcf97852cc58e1613b1ec6132379b834da58ad3240fdd61508a384202f63aa9ffa335c18cd7b2b724d3
2023-05-10 20:30:54 +00:00
Riccardo Casatta 8835d5d2f1
make bip21 schema lowercase
The spec RFC3986 specifies the scheme is case insensitive and we were uppercasing
to optimize QR code representation.
Unfortunately, common platform such as Android seems to fail to recognize
uppercase schema, so for compatibility reason we use lowercase.
2023-05-10 20:36:15 +02:00
Andrew Poelstra d93e781148
Merge rust-bitcoin/rust-bitcoin#1838: Move and rename TxOut default trait to a const called NULL
75b3f19b96 Move and rename TxOut default trait to a const called NULL (yancy)

Pull request description:

  Create an associated constant `const TxOut::NULL` for consensus signing code and remove the default trait.  Note I tried to deprecate the `default()` fn instead of just removing it but it doesn't seem to be possible.  Also because `TxOut::NULL` is `const`, `ScriptBuf::new()` needed to be changed to `const fn`.

ACKs for top commit:
  apoelstra:
    ACK 75b3f19b96
  Kixunil:
    ACK 75b3f19b96

Tree-SHA512: ff61a2b1641a1ba32f183c27205af2d868dbc2eb47cf758c3d8315329d2c23e0b8a82ea0ab59d1de9add0d238f927165e2e4df014aab1ef066d74d4feda0700b
2023-05-09 18:31:34 +00:00
yancy 639c548aed docs: Add doc comments for external crates 2023-05-08 10:57:49 +02:00
yancy 75b3f19b96 Move and rename TxOut default trait to a const called NULL 2023-05-08 09:11:06 +02:00
Andrew Poelstra dea628276c
Merge rust-bitcoin/rust-bitcoin#1837: feat: generate PrivateKey
995c797e0d feat: generate PrivateKey (kshitjj)

Pull request description:

  added a function to generate a private key

  Resolves: #1823

ACKs for top commit:
  apoelstra:
    ACK 995c797e0d
  tcharding:
    ACK 995c797e0d

Tree-SHA512: 29ba54be8cb777e71a4683835686cbf2978b23736f629d7bbff468074235fece261ca170c23f358d1bd878987566d09e4488c3f1a106c59a5c8bdf52b98abffe
2023-05-08 03:13:51 +00:00
kshitjj 995c797e0d feat: generate PrivateKey 2023-05-07 21:56:39 +05:30
Martin Habovstiak 6c6a89b1d1 Add sub-sat fractions parsing regression test
This test triggers the bug fixed in previous commit.
2023-05-07 08:47:53 +02:00
Martin Habovstiak f1a3dc6719 Allow parsing sub-sat denoms with decimal points
Numbers with only zeros after decimal points are valid if they are also
multiples of `10^precision` (e.g. 1000 for msats). These were
artificially disallowed as "too precise" which was at least misleading.

This change allows parsing such numbers.
2023-05-07 08:45:25 +02:00
Martin Habovstiak b3d9a267ea Add a few more amount parsing tests
These tests try to stress various edge cases that should return
`ParseAmountError::TooPrecise`.
2023-05-07 08:39:24 +02:00
Andrew Poelstra 4abbdc20a0
Merge rust-bitcoin/rust-bitcoin#1820: Expose valid (min, max) difficulty transition thresholds
8e6f953aa7 Expose valid (min, max) difficulty transition thresholds (Wilmer Paulino)

Pull request description:

  Once `U256` was made private, we lost the ability to check whether a valid difficulty transition was made in the chain, since `Target` doesn't expose any operations. We only choose to expose `Shl<u32>` and `Shr<u32>` such that we can compute the min and max target thresholds allowed for a difficulty transition.

  This is something we realized was missing after bumping to `rust-bitcoin v0.30.0` in `rust-lightning`, specifically for our `lightning-block-sync` crate. It may also be worth having a helper in `rust-bitcoin` that checks a header properly builds upon the previous, but that can be left for future work.

ACKs for top commit:
  Kixunil:
    ACK 8e6f953aa7
  sanket1729:
    ACK 8e6f953aa7 . Sorry, was confused by some details.
  apoelstra:
    ACK 8e6f953aa7

Tree-SHA512: 740dd64089426463dc6a19726d5a562276bd0966e0e31af8e1e67b28d18945644ac0e50be3cf0cc7fa604acc3d2c5b912a77a7caa69d8cff85f70fd57e5328c5
2023-05-06 18:53:15 +00:00
Andrew Poelstra 64540b9b93
Merge rust-bitcoin/rust-bitcoin#1793: Comment predict_weight
dff757d7db Comment predict_weight (yancy)

Pull request description:

  I've been reading over the `predict_weight` function since it is one of the biggest challenges for coin-selection.  IE choosing inputs and constructing an optimal selection strategy requires predicting the weight to get the best selection.  It's great this work has been done but there are some things I don't understand well enough to comment.

  1) why are we looking at the size of VarInt struct here
  > let script_size = script_len + VarInt(script_len as u64).len()

  2) [predict_weight_internal](36500b4451/bitcoin/src/blockdata/transaction.rs (L1245)) has a bunch of magic numbers.  I'd like to be able to comment this as well but I don't fully understand that function.

  Also, `Transaction.rs` is a big file and it seems like all of the prediction stuff could be moved to a separate module or maybe a separate crate?

ACKs for top commit:
  tcharding:
    ACK dff757d7db
  Kixunil:
    ACK dff757d7db

Tree-SHA512: 8ffa16d500075d691528ce1819b9352a148af431889bebbd7cddcf470bd4e3048ec53a5e778bc3659e33d8c25b68422a93dac1d46b9489ff56f41d88d7f05433
2023-05-05 02:55:23 +00:00
Andrew Poelstra 25f569adeb
Merge rust-bitcoin/rust-bitcoin#1811: Use Amount type for TxOut value field
d57ec019d5 Use Amount type for TxOut value field (yancy)

Pull request description:

  Propose using `Amount` type for the `TxOut` `value` field.  I only implemented `Decodable ` and `Encodable` enough to compile but this needs to completed obviously if using `Amount` seems like a good idea.

ACKs for top commit:
  tcharding:
    ACK d57ec019d5
  apoelstra:
    ACK d57ec019d5

Tree-SHA512: df3fd55294d5f9392ca90bb920be8fbb9d7d285d97669412e07d5a099f70f81fd73e7e259679de9c8ce5c6c855e64f62213700f0fb7db415e0c706c509485377
2023-05-05 00:10:55 +00:00
Andrew Poelstra 1abbed2129
Merge rust-bitcoin/rust-bitcoin#1785: Implement serde::Serialize for Address
ed6421c939 address: Add generic serde::Serialize for Address (Steven Roose)
814b9917da address: Add Sync, Send, Sized and UnPin marker traits on NetworkValidation (Steven Roose)

Pull request description:

  With the new rewrite of Address, `serde::Serialize` is only implemented on `Address<bitcoin::address::NetworkChecked>` and `Address<bitcoin::address::NetworkUnchecked>`. But the compiler has no way of knowing that that are all the possible versions of `Address`, so the generic `Address<impl bitcoin::address::NetworkValidation>` doesn't implement `serde::Serialize`.

ACKs for top commit:
  Kixunil:
    ACK ed6421c939
  tcharding:
    ACK ed6421c939

Tree-SHA512: 65e43dff244c94fe08ccb2d985781a2687a1e2db186960a35d4ae89f3b31c5af66892630a3ebaac9cecdc83638487425afa17374869d278648b348869e0ba091
2023-05-04 21:52:38 +00:00
Wilmer Paulino 8e6f953aa7
Expose valid (min, max) difficulty transition thresholds
Once `U256` was made private, we lost the ability to check whether a
valid difficulty transition was made in the chain, since `Target`
no longer exposes any arithmetic operations.
2023-05-04 12:41:28 -07:00
yancy d57ec019d5 Use Amount type for TxOut value field 2023-05-04 17:09:08 +02:00
Andrew Poelstra ac664106be
Merge rust-bitcoin/rust-bitcoin#1829: Remove `min_value` and `max_value`
6cab7beba3 Deprecate min/max_value methods (Tobin C. Harding)
5fbbd483ea Use MIN/MAX consts instead of min/max_value (Tobin C. Harding)
3885f4d430 Add MIN/MAX consts to amounts (Tobin C. Harding)

Pull request description:

  The new MSRV (1.48.0) uses associated consts MAX/MIN instead of functions, we had functions to be compliant with the old MSRV.

  ~Remove all methods `min_value` and `max_value` including calls to these methods on stdlib types.~

  PR is now split into three patches:
  - patch 1: Add missing associated consts MIN/MAX as needed
  - patch 2: Use consts instead of method calls
  - patch 3: Deprecate methods `min_value` and `max_value`

ACKs for top commit:
  sanket1729:
    ACK 6cab7beba3
  apoelstra:
    ACK 6cab7beba3
  Kixunil:
    ACK 6cab7beba3

Tree-SHA512: 60949d1bb971e0dfbab7f573b4447f889b5fa1a5f1c9ac9325a2970fe17a19ccc93418dba57f07bed7e13864b130de48b6b3741d1d80266c6144237dd4565ff7
2023-05-04 12:59:56 +00:00
Andrew Poelstra 23d80bf1ab
Merge rust-bitcoin/rust-bitcoin#1764: Test with minimal dependency versions
c4c64c0dc5 Test with minimal dependency versions (Martin Habovstiak)
d5655d503a Bump core2 dependency from 0.3.0 -> 0.3.2 (Tobin C. Harding)

Pull request description:

  This is work originally done by Kixunil in #1272, I picked it up to help out. The only changes I made were rebasingg, updating the recent lock file, adding `--locked` to hashes contrib file,  and adding a co-developed-by tag for accountability.

  It could happen that we unknowingly depend on a new version of a crate without updating `Cargo.toml`. This could cause resolution issues for downstream users. It's also unclear for outsiders to know with which dependencies did we test the crate.

  This change commits two lock files: `minimal` and `recent`. `minimal` contains minimal dependency versions, while `recent` contains dependency versions at the time of making the change.

  Further, this adds CI jobs to test with both lock files, CI job for `internals` crate, removes old `serde` pinning and prints a warning if `recent` is no longer up to date. (We may have to override it somehow if any crate breaks MSRV.)

  The documentation is also updated accordingly.

  Closes #1230

ACKs for top commit:
  apoelstra:
    ACK c4c64c0dc5
  Kixunil:
    ACK c4c64c0dc5

Tree-SHA512: 7d386e96ab747f6a6bafeea828ac65bd8bb11975eaa3408acecac369cd2f235f6e9d4c57202be18a3dc2eeb2a2df532d73e4d35cd1f3fbf092eb6414c55b1524
2023-05-03 22:35:21 +00:00
Tobin C. Harding 6cab7beba3
Deprecate min/max_value methods
Our previous MSRV did not support MIN/MAX associated consts so we had
methods min/max_value. Now that our MSRV is Rust 1.48.0 we can use the
consts.

Deprecate min/max_value methods in favor of MIN/MAX associated conts.
2023-05-03 08:26:58 +10:00
Tobin C. Harding 5fbbd483ea
Use MIN/MAX consts instead of min/max_value
We currently use the functions `min_value` and `max_value` because the
consts were not available in Rust 1.41.1, however we recently bumped the
MSRV so we can use the consts now.
2023-05-03 08:22:30 +10:00
Tobin C. Harding 3885f4d430
Add MIN/MAX consts to amounts
Add associated consts for minimum and maximum values to the `Amount` and
`SignedAmount` types.
2023-05-03 08:22:30 +10:00
Martin Habovstiak c4c64c0dc5
Test with minimal dependency versions
It could happen that we unknowingly depend on a new version of a crate
without updating `Cargo.toml`. This could cause resolution issues for
downstream users. It's also unclear for outsiders to see which
dependencies we tested the crate with.

This change commits two lock files: `minimal` and `recent`. `minimal`
contains minimal depdendency versions, while `recent` contains
dependency versions at the time of making the change.

Further, this adds CI jobs to test with both lock files, CI job for
`internals` crate, removes old `serde` pinning and prints a warning if
`recent` is no longer up to date. (We may have to override it somehow if
any crate breaks MSRV.)

The documentation is also updated accordingly.

Co-developed-by: Tobin C. Harding <me@tobin.cc>

Closes #1230
2023-05-03 08:06:46 +10:00
Andrew Poelstra 67ff453a3a
Merge rust-bitcoin/rust-bitcoin#1801: Adds as_core_arg serde module to network
aa6a3530a6 Adds as_core_arg serde module to network (Sergi Delgado Segura)

Pull request description:

  The new module provides serde functions to convert from/to Bitcoin Core network variants.

  Fixes #1799

ACKs for top commit:
  Kixunil:
    ACK aa6a3530a6
  tcharding:
    ACK aa6a3530a6
  sanket1729:
    ACK aa6a3530a6

Tree-SHA512: f536d0e41144928b71dc9b58735d4e0b883ee84a7a84e868f1d74b284c2e2be746ddcb30028dd099515bc933e7efa2cf26717f506edde84c40c3f523a5a8ed27
2023-05-02 01:45:41 +00:00
Andrew Poelstra 936f2ee3bb
Merge rust-bitcoin/rust-bitcoin#1825: Simplify per-file license comments
1c3bbd4bf2 internals: Remove attribution from all files (Tobin C. Harding)
99673ab5c4 hashes: Introduce SPDX license identifiers (Tobin C. Harding)
984fe69448 bitcoin: Remove attribution from all files (Tobin C. Harding)

Pull request description:

  Please note, whether or not we need a per-file license comment is out of scope for this PR. This PR leaves us with the most simple per-file solution possible and leaves the merit of per-file license comment to be discussed on another day.

  Simplify the per-file license stuff by doing:

  - Remove the attribution line from each file.

      Currently we have a mishmash of attribution lines accompanying the SPDX identifier. These lines are basically meaningless because:

      - The date is often wrong
      - The original author attributed is not the only contributor to a file
      - The term "rust bitcoin developers" is basically just noise

  - Introduce SPDX license identifiers into `hashes` and remove attribution line (ie, make `hashes` uniform with `bitcoin`)

  Required before merge please:

  - [x] ack from apoelstra because as the library original author many of the changes in this PR remove his name
  - [x] ack from Kixunil because he had some concerns in the issue descussion

  Fix: #1816

ACKs for top commit:
  Kixunil:
    ACK 1c3bbd4bf2
  sanket1729:
    ACK 1c3bbd4bf2
  apoelstra:
    ACK 1c3bbd4bf2

Tree-SHA512: c5ac05c5eb23b3b6a760f707c344b22f5871a4dedee4990b1840f57e4cee1d38560ff4507c354bbf29bc8ff05a179d95d7e100fcf19bd93c5362344a352c7b5a
2023-05-01 20:11:53 +00:00
Riccardo Casatta fc7c251502
Move weight constants in the `Weight` type
deprecate constants::MAX_BLOCK_WEIGHT and constants::MIN_TRANSACTION_WEIGHT
to nicely redirect users to the constants in the Weight type
2023-05-01 13:55:14 +02:00
Tobin C. Harding d5655d503a
Bump core2 dependency from 0.3.0 -> 0.3.2
`core2` versions 0.3.0 and 0.3.1 do not work with Rust 1.48.0, set
minimum version to 0.3.2 in the `bitcoin` manifest.
2023-05-01 10:07:43 +10:00
Tobin C. Harding 984fe69448
bitcoin: Remove attribution from all files
Currently we have a mishmash of attribution lines accompanying the SPDX
identifier. These lines are basically meaningless because:

- The date is often wrong
- The original author attributed is not the only contributor to a file
- The term "rust bitcoin developers" is basically just noise

Just remove all the attribution lines and be done with it. While we are
at it add an SPDX line to the few files missing it, whether this license
nonsense is even needed is left as an argument for another day.
2023-05-01 09:22:48 +10:00
Andrew Poelstra ca7c60a09d
Merge rust-bitcoin/rust-bitcoin#1817: Hardcode expected weight in txin_txout_weight_tests
dd4ad9444e Hardcode expected weight in txin_txout_weight_tests (Peter Todd)

Pull request description:

  Rational: the expected weight is fixed so this both ensures we don't accidentally change it somehow, and makes it easier to re-use these test cases in other codebases (eg python-bitcoinlib).

ACKs for top commit:
  apoelstra:
    ACK dd4ad9444e
  tcharding:
    ACK dd4ad9444e
  Kixunil:
    ACK dd4ad9444e

Tree-SHA512: 4769a4bb8695f4f4c95e258bb5f06a232090b14c3d9159d6d5de2d09d7fc934a1b920b90cc09677a88fc0cf37ac21ed27794692dff2c73df4252c9551dc10fc2
2023-04-28 15:39:06 +00:00
Andrew Poelstra c9347cd021
Merge rust-bitcoin/rust-bitcoin#1732: Overhaul fuzzing
2860aae1a5 fuzz: don't fuzz hashes against RustCrypto (Andrew Poelstra)
6467728202 fuzz: disable tests unless 'cfg(fuzzing)' is passed; update README for reproducing failures (Andrew Poelstra)
6e2ee5be66 fuzz: run 'cargo fmt' on all the fuzz targets (Andrew Poelstra)
9cfc0fcd81 fuzz: add contrib/test.sh so we at least 'cargo test' it in CI (Andrew Poelstra)
933ecb19e1 fuzz: fix warnings, clippy lints, 1.48.0 failures (Andrew Poelstra)
fd88e48696 fuzz: remove AFL support (Andrew Poelstra)
ab467cb091 fuzz: make hongfuzz fuzzing the default feature (Andrew Poelstra)
6f754df231 fuzz: add fuzzing README (Andrew Poelstra)
f093765efe fix fuzz.sh and cycle.sh to use generated lists of targets (Andrew Poelstra)
6534f22362 fuzz: auto-generate CI and Cargo.toml files (Andrew Poelstra)
8021034d86 rename travis-fuzz.sh to fuzz.sh; partially patch CI (Andrew Poelstra)
0be75f7edc move hashes/fuzz into main fuzz/ directory (Andrew Poelstra)
5a891dec2d move bitcoin fuzz targets into bitcoin/ subdirectory (Andrew Poelstra)
e3111c748b move bitcoin/fuzz into repo root; add to workspace (Andrew Poelstra)

Pull request description:

  Several big changes here:
  * Moves fuzzing to its own workspace with a `contrib/test.sh` etc so that CI will check that it compiles
  * FIx all warnings, clippy lints, MSRV problems, etc.; mostly move to Rust 2018
  * Merge `hashes/` fuzztests into workspace
  * Rewrite all scripts; add file that auto-generates CI fuzz job and Cargo.toml so we don't have to manually keep these in sync
  * Remove bitrotted and partial AFL support.

  Supercedes #1422

  I suspect the hashes fuzztests will actually fail since we haven't touched them in so long. Will address that if CI fails here.

ACKs for top commit:
  sanket1729:
    ACK 2860aae1a5
  tcharding:
    ACK 2860aae1a5

Tree-SHA512: b1aa3d6fac75fee51966f1d3f3245784e331bdea2a3fa7d6609bc4196c34f81acb7701faf8f269c3741568ea100438f24a2f06e75c8d01cb84c8b22d7886f1dd
2023-04-28 13:26:27 +00:00
Andrew Poelstra 8021034d86
rename travis-fuzz.sh to fuzz.sh; partially patch CI 2023-04-27 00:24:52 +00:00
Andrew Poelstra e3111c748b
move bitcoin/fuzz into repo root; add to workspace
This allows testing the fuzztests and making sure that they compile and
tests pass, etc., just using `cargo test --all` in the root.
2023-04-27 00:24:48 +00:00
Peter Todd dd4ad9444e
Hardcode expected weight in txin_txout_weight_tests
Rational: the expected weight is fixed so this both ensures we don't
accidentally change it somehow, and makes it easier to re-use these test
cases in other codebases (eg python-bitcoinlib).
2023-04-26 22:02:03 +00:00
Peter Todd 8b9ec8eb77
Fix policy link 2023-04-26 21:08:26 +00:00
Tobin C. Harding d37845197f
embedded: Remove error handler
Seems we no longer need an explicit error handler, remove it.

I did not grok the reason (long thread link below) but just removed it
and checked that the embedded crates still ran correctly.

https://github.com/rust-lang/rust/issues/51540)
2023-04-26 14:29:39 +10:00
Andrew Poelstra 967b58dc2a
Merge rust-bitcoin/rust-bitcoin#1810: Spelling and typo fixes
20b812dc66 Spelling and typo fixes (yancy)

Pull request description:

  Fix some types in Transaction.rs and encode.rs

ACKs for top commit:
  apoelstra:
    ACK 20b812dc66
  Kixunil:
    ACK 20b812dc66
  tcharding:
    ACK 20b812dc66

Tree-SHA512: d613189932ecb760be385c4095723501222cc8cec8b25525b58f76f9486d33fe46ab241bd2c098ea141f0fd12bb52abc677eba4a0cf3fe5b40b515bd75c7237c
2023-04-26 00:46:31 +00:00
Andrew Poelstra 84a075d03a
Merge rust-bitcoin/rust-bitcoin#1796: transaction: Rename is_coin_base to is_coinbase
a54e1ceab1 Apply rustfmt (The rustfmt Tyranny)
38d11ce3da ci: Make release CI search for NEXT.RELEASE instead (Steven Roose)
dad3abd20f transaction: Rename is_coin_base to is_coinbase (Steven Roose)

Pull request description:

  Alternative to https://github.com/rust-bitcoin/rust-bitcoin/pull/1795.

  Keep the old method as deprecated and add doc alias. Also change internal usage of the method.

ACKs for top commit:
  tcharding:
    ACK a54e1ceab1
  apoelstra:
    ACK a54e1ceab1

Tree-SHA512: 52d9729bf83da164556d960f8867cb836ff57a0f619da3dd3620efffb28a974aac23b8085863ab0e072a4bdb2f13ac576efa43ad2eec9a271ad044227f4d00a4
2023-04-24 23:14:39 +00:00
The rustfmt Tyranny a54e1ceab1 Apply rustfmt 2023-04-24 18:20:23 +01:00
yancy 20b812dc66 Spelling and typo fixes 2023-04-24 16:51:10 +02:00
Andrew Poelstra 8440d80a5a
Merge rust-bitcoin/rust-bitcoin#1696: Remove `schemars` pin from manifest
6c61e1019e Fix pinning (schemars and MSRV) (Tobin C. Harding)
c8e38d6a5a hashes: Implement JsonSchema for sha256t::Hash<T> (Tobin C. Harding)

Pull request description:

  This has grown due to now including pinning work also done in https://github.com/rust-bitcoin/rust-bitcoin/pull/1736, I decided to do this because the PRs conflict and doing it all here saves accidentally getting out of sync. And  https://github.com/rust-bitcoin/rust-bitcoin/pull/1764 requires this PR.

  - Patch 1 is unchanged
  - Patch 2 now fixes pinning in bitcoin and hashes CI scripts and in the docs of both as well as the manifest stuff relating to `schemars` - phew.

  Fix: #1687

ACKs for top commit:
  Kixunil:
    ACK 6c61e1019e
  apoelstra:
    ACK 6c61e1019e

Tree-SHA512: eae4aa9700817bab6ad444e07709e8b1a4ffb1625e08be6ba399abde38bf6f8e5ea216a0836e2e26dfaddc76c392802cd016738ea6e753a1bca2584d9d2a9796
2023-04-19 22:18:29 +00:00
Steven Roose 38d11ce3da
ci: Make release CI search for NEXT.RELEASE instead 2023-04-19 16:07:03 +01:00
Steven Roose dad3abd20f
transaction: Rename is_coin_base to is_coinbase
Keep the old method as deprecated and add doc alias.
Also change internal usage of the method.
2023-04-19 16:02:59 +01:00
Tobin C. Harding 6c61e1019e
Fix pinning (schemars and MSRV)
Done as is single patch to make sure all the docs and CI are in sync and
correct.

We currently pin the `schemars` dependency using `<=0.8.3` as well as a
the `dyn-clone` transient dependency in the manifest (`hashes` and the
extended test crate). This is incorrect because it makes usage of the
crate klunky (or possibly impossible) if downstream users wish to use a
later version of `schemars`.

Observe also that we do not have to pin `schemars`, we do however have to pin
the `serde` crate if either `serde` or `schemars` features are enabled.
Do so in CI and document in the readme file within hashes.

Currently we have a pin remaining from the old MSRV (`syn` due to use
of `matches!`).

Fix pinning by:

- Remove pin in manifest for `schemars`
- Fix pinning for MSRV in CI and docs (this includes documenting pinning
  requirements for `schemars` feature because it is related to the other
  pin of `serde`) in both `hashes` readme and main repo readme.
2023-04-19 10:17:18 +10:00
Sergi Delgado Segura aa6a3530a6 Adds as_core_arg serde module to network
The new module provides serde functions to convert from/to Bitcoin Core
network variants

Includes tests suggested by @tcharding
2023-04-17 12:28:13 +02:00
Andrew Poelstra 0af8d45e21
Merge rust-bitcoin/rust-bitcoin#1797: Add predict_weight test for witness address types
8f6317fbab Add predict_weight test for witness address types (yancy)

Pull request description:

  Add a predict_weight test for address types with witness data

ACKs for top commit:
  Kixunil:
    ACK 8f6317fbab
  apoelstra:
    ACK 8f6317fbab

Tree-SHA512: 954908f068d6b0e8f7cc6bc6bffd110d490d7165cf2544ff0f936264761cb1f8e4da1e37fd5a6a34fd8b05f8d72817a3b340bbf968b29c9f538f10853347fdf0
2023-04-14 16:08:31 +00:00
yancy 8f6317fbab Add predict_weight test for witness address types 2023-04-14 12:02:37 +02:00
yancy dff757d7db Comment predict_weight 2023-04-13 17:44:41 +02:00
Steven Roose 3d524e06e4
Add Inventory::network_hash() method 2023-04-13 16:23:22 +01:00
Steven Roose ed6421c939
address: Add generic serde::Serialize for Address
Otherwise a generic `Address<impl NetworkValidation>` is not
serializable.
2023-04-09 19:02:53 +01:00
Steven Roose 814b9917da
address: Add Sync, Send, Sized and UnPin marker traits on NetworkValidation 2023-04-09 19:02:43 +01:00
Andrew Poelstra e83a2d3422
Merge rust-bitcoin/rust-bitcoin#1742: Use package in manifest and shorten import
fabcde036f Use package in manifest and shorten import (Tobin C. Harding)

Pull request description:

  We can use `package` to rename `bitcoin_hashes` to `hashes` and `bitcoin_internals` to `internals`. This makes imports more terse with no loss of meaning.

ACKs for top commit:
  apoelstra:
    ACK fabcde036f
  Kixunil:
    ACK fabcde036f

Tree-SHA512: bc5bff6f7f6bf3b68ba1e0644a83da014081d8c6c9d578c21cb54fdd56a018f68733dd1135d05b590ba193ed9efd12fa9019182c1fed347e604d8548f6ef9103
2023-04-05 14:20:06 +00:00
Andrew Poelstra 8edfc4597b
Merge rust-bitcoin/rust-bitcoin#1765: unsafe address type conversions
29cb34eed7 Refactor Address struct and its methods (Harshil Jani)

Pull request description:

  Closes #1755

  In this PR the `as_unchecked` is added to the Address struct, which returns a reference to the same address but with the type Address<NetworkUnchecked>.  Similarly, the `assume_checked_ref` is added to Address<NetworkUnchecked>, which returns a reference to the same address but with the type Address.

ACKs for top commit:
  tcharding:
    ACK 29cb34eed7
  apoelstra:
    ACK 29cb34eed7

Tree-SHA512: 75ba40883d9fb31026b0e94e8d3fdcf808ff38a4d10f61f99a1e14ddc48358da86bad44cd78563dc67aa5d39382a5493e73c03891317f361f590e39b6257cb84
2023-04-04 17:40:33 +00:00
Andrew Poelstra 350b413e59
Merge rust-bitcoin/rust-bitcoin#1773: Make `sha256t_hash_newtype!` evocative of the output.
91f45a214f Replace hardcoded values with compile-time hashing (Martin Habovstiak)
095b7958dd Make `sha256t_hash_newtype!` evocative of the output. (Martin Habovstiak)

Pull request description:

  The Rust API guidelines state that macros should be evocative of the
  output, which is a sensible recommendation. We already had this for
  `hash_newtype!` macro but didn't for sha256t version.

  This changes the macro to have this syntax:

  ```rust
  sha256t_hash_newtype! {
      // Order of these structs is fixed.
      /// Optional documentation details here. Summary is auto-generated.
      /*pub*/ struct Tag = raw(MIDSTATE_BYTES, LEN);

      /// Documentation here
      #[hash_newtype(forward)] // optional, default is backward
      /*pub*/ struct HashType(/* attributes allowed here */ _);
  }
  ```

  Closes https://github.com/rust-bitcoin/rust-bitcoin/issues/1427

  Depends on #1769

  How do you like the syntax? Is weird `struct Foo = bar(..);` acceptable?

ACKs for top commit:
  tcharding:
    ACK 91f45a214f
  apoelstra:
    ACK 91f45a214f

Tree-SHA512: f6b555b20311a4c1cb097bc296c92459f6fbe16ba102d8c977eb2383dbcae3cc8ffce32e3cb771e7e22197fda26379971aa4feaadc5e2e70d37fa690ae8b8859
2023-04-03 18:21:58 +00:00
Andrew Poelstra 142b4fc431
Merge rust-bitcoin/rust-bitcoin#1771: Use slice patterns
873501a85f Use slice patterns (Martin Habovstiak)

Pull request description:

  Some code looks better with slice patterns. This changes `bip32` to use them.

ACKs for top commit:
  apoelstra:
    ACK 873501a85f
  tcharding:
    ACK 873501a85f

Tree-SHA512: 2e91b21d0f943c04f592112f241444ba3b1b1dad47ea6bea162f62cfbcaf98e383257cad144072b3807aaa0c122dabab638ac10b1cc1f5179727a5f05aac0659
2023-04-03 15:48:35 +00:00
Harshil Jani 29cb34eed7 Refactor Address struct and its methods
This commit refactors the Address struct and its methods to improve
its functionality and usability.The AddressInner struct now holds
the payload and network, and the PhantomData<V> type is used to track
the network validation state.

Also as_unchecked and assume_checked_red methods are added to allow
conversion between checked and unchecked network validation state.

Signed-off-by: Harshil Jani <harshiljani2002@gmail.com>
2023-04-03 15:24:45 +05:30
Martin Habovstiak 91f45a214f Replace hardcoded values with compile-time hashing
Previous changes enabled passing the string used as a tag into
`sha256t_hash_newtype!` macro rather than hard-coding midstate. This
commit takes advantage of it and replaces the hard-coded values with
compile-time executed (`const`) hashing.
2023-04-02 17:01:10 +02:00
Martin Habovstiak 095b7958dd Make `sha256t_hash_newtype!` evocative of the output.
The Rust API guidelines state that macros should be evocative of the
output, which is a sensible recommendation. We already had this for
`hash_newtype!` macro but didn't for sha256t version.

This changes the macro to have this syntax:

```rust
sha256t_hash_newtype! {
    // Order of these structs is fixed.
    /// Optional documentation details here. Summary is auto-generated.
    /*pub*/ struct Tag = raw(MIDSTATE_BYTES, LEN);

    /// Documentation here
    #[hash_newtype(forward)] // optional, default is backward
    /*pub*/ struct HashType(/* attributes allowed here */ _);
}
```

Closes #1427
2023-04-02 17:00:52 +02:00
Martin Habovstiak 8b4280d5ef Update clippy MSRV configuration
We've upgraded MSRV but didn't update clippy config, so some things that
could be improved aren't caught by clippy. This updates the config and
fixes the new issues.

I also `rg '1\.41\.1'`ed for interesting changes and found one
additional improvement.
2023-04-02 16:28:10 +02:00
Martin Habovstiak 873501a85f Use slice patterns
Some code looks better with slice patterns. This changes `bip32` to use
them.
2023-04-02 01:08:03 +02:00
Andrew Poelstra 895db71156
Merge rust-bitcoin/rust-bitcoin#1763: Use doc_auto_cfg
a189942c64 Use doc_auto_cfg (Tobin C. Harding)

Pull request description:

  If we use `#![cfg_attr(docsrs, feature(doc_auto_cfg))]` instead of `#![cfg_attr(docsrs, feature(doc_cfg))]` we no longer need to manually mark types with `#[cfg_attr(docsrs, doc(cfg(feature = "std")))]`.

  Sweeeeeet.

  Props to pezcore for the lesson :)

ACKs for top commit:
  apoelstra:
    ACK a189942c64
  Kixunil:
    ACK a189942c64

Tree-SHA512: 1ced1e09f5d1733b362b83ca650d3f52c89eb57e78e8437f74c496d89776548f8c50feab6750352342e2abe680434681de2c126ce36a81dda21397b9695d4d4e
2023-03-30 16:56:49 +00:00
Harshil Jani 046bda321b comparing NetworkUncheck addresses
Signed-off-by: Harshil Jani <harshiljani2002@gmail.com>

implementation of PartialEq<Address> for Address<NetworkUnchecked>

Signed-off-by: Harshil Jani <harshiljani2002@gmail.com>
2023-03-29 11:33:20 +05:30
Tobin C. Harding a189942c64
Use doc_auto_cfg
If we use `#![cfg_attr(docsrs, feature(doc_auto_cfg))]` instead of
`#![cfg_attr(docsrs, feature(doc_cfg))]` we no longer need to manually
mark types with `#[cfg_attr(docsrs, doc(cfg(feature = "std")))]`.

Sweeeeeet.
2023-03-29 14:50:33 +11:00
Andrew Poelstra dc72dfb9f2
Merge rust-bitcoin/rust-bitcoin#1753: Add `ChainHash::from_genesis_block_hash`
ed80df5ebc Add `ChainHash::from_genesis_block_hash` (Martin Habovstiak)

Pull request description:

  This improves readability of converting `BlockHash` into `ChainHash`. It's useful in e.g. Electrum protocol which sends `BlockHash` (serialized backward).

  Closes #1751

ACKs for top commit:
  apoelstra:
    ACK ed80df5ebc
  tcharding:
    ACK ed80df5ebc

Tree-SHA512: b03eb9ca0a1eb38196cc8e43751c2def0d00b463b774003c5319bf56599db598ddd4bb0e2ad0bd3803f21a925135992d421848e7b1ba5e7bab3a405f60fc973c
2023-03-28 01:25:18 +00:00
Tobin C. Harding fabcde036f
Use package in manifest and shorten import
We can use `package` to rename `bitcoin_hashes` to `hashes` and
`bitcoin_internals` to `internals`. This makes imports more terse with
no loss of meaning.
2023-03-28 12:20:04 +11:00
Andrew Poelstra 2e2d5e9e34
Merge rust-bitcoin/rust-bitcoin#1740: create a set of recognized denomination forms
82b6332b91 create a set of recognized denomination forms (yancy)

Pull request description:

  I took a stab at restricting the acceptable forms here.  There was some consensus that "BtC" was confusing that was discussed in a previous pr https://github.com/rust-bitcoin/rust-bitcoin/pull/1715.

  Also, personally I felt that the `PossiblyConfusingDenomination` enum variant was itself confusing.  I think it's probably cleaner to just maintain a list of acceptable forms and treat everything else as unknown.  For now I just created a const of possibly confusing forms.

ACKs for top commit:
  Kixunil:
    ACK 82b6332b91
  apoelstra:
    ACK 82b6332b91

Tree-SHA512: f3c212046e4d8a34ce2d50f34065b1778ae190ca80dd9ad73ef41eb5925705c88c0a764ec149d731eb1735d670c5542415953633a7f3f672d0c1e46b6e004d0b
2023-03-27 19:43:00 +00:00
yancy 82b6332b91 create a set of recognized denomination forms 2023-03-27 11:19:55 +02:00
Martin Habovstiak ed80df5ebc Add `ChainHash::from_genesis_block_hash`
This improves readability of converting `BlockHash` into `ChainHash`.
It's useful in e.g. Electrum protocol which sends `BlockHash`
(serialized backward).

Closes #1751
2023-03-26 10:42:22 +02:00
Andrew Poelstra 531dbc888c
Merge rust-bitcoin/rust-bitcoin#1730: Use shorter imports
122188f7dd Use shorter import statements (Tobin C. Harding)

Pull request description:

  Just patch 2, patch 1 is #1728

  From the commit log of patch 2

      Use shorter import statements

      As per discussion [0] use the shorter form for importing crates that we
      re-export (`hashes` and `secp256k1`).

      [0] https://github.com/rust-bitcoin/rust-bitcoin/discussions/1661

ACKs for top commit:
  apoelstra:
    ACK 122188f7dd
  sanket1729:
    utACK 122188f7dd

Tree-SHA512: 3f540464d38c72ba9d68f8ceda8600540bd0c3eef0ba67531c87fa1e0e4f757af7035cf80a1a5f17aa05604a17fdd9ef59bb6bece6b4145d540dac1e5362fc01
2023-03-23 17:39:03 +00:00
Tobin C. Harding 7cdc90565f
Mutate mul_u64 with mutagen
Add the `mutate` attribute to mutate `mul_u64`. Add non-doc comments
listing the two false positives. These are identical but we list them
twice so when devs grep for `mutagen false pos` the same number of lines
for each function is displayed as is displayed by the `mutagen` run.
This coding false positives thing is also introduced in PR #1655.
2023-03-23 13:51:21 +11:00
Andrew Poelstra 3417585a53
Merge rust-bitcoin/rust-bitcoin#1729: Bump MSRV to 1.48.0
1dc04fe10f Remove rust_v_1_46 (Tobin C. Harding)
71fa9e81e7 Bump MSRV to 1.48.1 (Tobin C. Harding)

Pull request description:

  Just patch 2, patch 1 is #1728

  From the commit log of patch 2

      Bump MSRV to 1.48.1

      As per discussion [0] bump our MSRV for all crates in `rust-bitcoin`
      repo to 1.48.1 [1].

      [0] https://github.com/rust-bitcoin/rust-bitcoin/discussions/1329
      [1] https://blog.rust-lang.org/2020/11/19/Rust-1.48.html

ACKs for top commit:
  apoelstra:
    ACK 1dc04fe10f
  sanket1729:
    ACK 1dc04fe10f

Tree-SHA512: 533470c55f7aeede88382db8245033dac9317d75b38ced2ad8256d38319632a524335f893044e96300a1e60048f9aaca2d1634735eb324eb8ed9ad3c9ab2f872
2023-03-23 00:50:33 +00:00
Andrew Poelstra 3ca9de82a6
Merge rust-bitcoin/rust-bitcoin#1735: Add kilo weight unit conversion
dbd2ea07b5 Add kilo weight unit conversion (yancy)

Pull request description:

  The FeeRate module defaults to sats per `kwu` so when doing fee calculations, it would be convenient to easily convert weight to the same units.

ACKs for top commit:
  Kixunil:
    ACK dbd2ea07b5
  tcharding:
    ACK dbd2ea07b5
  apoelstra:
    ACK dbd2ea07b5

Tree-SHA512: fe26b631cf474f1dca627a4d21e9052c80f8ada9a0eb635c46b7f8f42095671b9b161fb5012b723699008372faf7668507d5e92bde7d1808d389f85dba33529b
2023-03-23 00:11:12 +00:00
Tobin C. Harding 1dc04fe10f
Remove rust_v_1_46
We just bumped the MSRV to 1.48.0 so we know that we have all features
from 1.46, no need for `rust_v_1_46` check anymore.
2023-03-23 08:27:10 +11:00
Tobin C. Harding 71fa9e81e7
Bump MSRV to 1.48.1
As per discussion [0] bump our MSRV for all crates in `rust-bitcoin`
repo to 1.48.1 [1].

[0] https://github.com/rust-bitcoin/rust-bitcoin/discussions/1329
[1] https://blog.rust-lang.org/2020/11/19/Rust-1.48.html
2023-03-23 08:03:06 +11:00
yancy dbd2ea07b5 Add kilo weight unit conversion 2023-03-22 20:05:07 +01:00
Tobin C. Harding 122188f7dd
Use shorter import statements
As per discussion [0] use the shorter form for importing crates that we
re-export (`hashes` and `secp256k1`).

[0] https://github.com/rust-bitcoin/rust-bitcoin/discussions/1661
2023-03-22 14:09:58 +11:00
Tobin C. Harding 5781896814
Run cargo +nightly rustfmt
We just merged a patch to enable formatting in CI but commit: `05fdead2
Feature: Add difficulty_float method for block::Header.` must have
slipped in.

Run the formatter.
2023-03-22 13:49:17 +11:00
Andrew Poelstra 24af58c5ad
Merge rust-bitcoin/rust-bitcoin#1434: Format the `rust-bitcoin` crate
913575ac91 hashes: Run the formatter (Tobin C. Harding)
52c4579057 Enable formatting for hashes (Tobin C. Harding)
3f16b6bf9f util: Run the formatter (Tobin C. Harding)
d210d2ac83 Enable formatting for util (Tobin C. Harding)
5973dce9db blockdata: Run the formatter (Tobin C. Harding)
0dcbed3c7b Enable formatting for blockdata (Tobin C. Harding)
a52746d01c psbt: Run the formatter (Tobin C. Harding)
ef306db5e2 Enable formatting for psbt (Tobin C. Harding)
296f2ed82c Make test panic instead of using code comment (Tobin C. Harding)
3ec8a12428 crypto: Run the formatter (Tobin C. Harding)
c8a3c58786 Enable formatting for crypto (Tobin C. Harding)
314e6786b4 crypto: Add rustfmt::skip attributes (Tobin C. Harding)
450a84f6e8 consensus: Run the formatter (Tobin C. Harding)
89143205f9 Enable formatting for consensus (Tobin C. Harding)
ce773af20f tests: Remove useless use of super imports (Tobin C. Harding)
ef01f4d0f6 consensus: Introduce local variables (Tobin C. Harding)

Pull request description:

  One final push crew, 16 patches, only a few are big.

  All non-trivial formatting is done in separate patches so the changes can be verified mechanically.

  With this applied the whole `rust-bitcoin` crate will be formatted.

  Big thanks to everyone for putting up with the ongoing formatting PRs, no-one likes doing these but hopefully this an improvement to the project - especially in helping us get more contributors to the project.

ACKs for top commit:
  tcharding:
    > ACK [913575a](913575ac91). Went through the workflow locally.
  sanket1729:
    ACK 913575ac91. Went through the workflow locally.
  apoelstra:
    ACK 913575ac91

Tree-SHA512: b30eaa2893563155de05f8fa97be4a24a7dd8bf43bb426314c5104598477ca2173af279da796da8b18cc53a0ed525908b3d4edd0504836a443465efa0773632d
2023-03-22 01:40:01 +00:00
Tobin C. Harding 998b204ece
bitcoin: Fix path to the readme
We moved to a submodule and didn't fix the readme path in the `bitcoin`
manifest.
2023-03-22 12:08:48 +11:00
Andrew Poelstra d65646ce99
Merge rust-bitcoin/rust-bitcoin#1699: Release tracking PR - v0.30.0
ffee8ad81b Bump version to v0.30.0 (Tobin C. Harding)

Pull request description:

  Add changelog notes and bump the version number to v0.30.0.

  ## TODO - pre-merge

  - [x] Release `bitcoin_hashes` 0.12: https://github.com/rust-bitcoin/rust-bitcoin/pull/1694
  - [x] Release secp 0.27: https://github.com/rust-bitcoin/rust-secp256k1/pull/588
    - https://github.com/rust-bitcoin/rust-secp256k1/pull/590
  - [x] Update `secp256k1` dependency to use newly released v0.27: https://github.com/rust-bitcoin/rust-bitcoin/pull/1714
  - [x] Merge
    - ~https://github.com/rust-bitcoin/rust-bitcoin/pull/1696~
    - https://github.com/rust-bitcoin/rust-bitcoin/pull/1695
    -  https://github.com/rust-bitcoin/rust-bitcoin/pull/1111
  - [x] If time permits merge these:
    - #1710
    - #1705
    - #1713
  - [x] Set the release date in changelog header
  - [x] And merge these:
    - https://github.com/rust-bitcoin/rust-bitcoin/pull/1721
    - https://github.com/rust-bitcoin/rust-bitcoin/pull/1720
    - https://github.com/rust-bitcoin/rust-bitcoin/pull/1719
    - https://github.com/rust-bitcoin/rust-bitcoin/pull/1717

  ## TODO  - post release
  - [ ] Release the blogpost: https://github.com/rust-bitcoin/www.rust-bitcoin.org/pull/2
     - ~Set the date in the blog post to match the date 0.30 is released~

ACKs for top commit:
  sanket1729:
    reACK ffee8ad81b
  Kixunil:
    ACK ffee8ad81b
  apoelstra:
    ACK ffee8ad81b

Tree-SHA512: b0ea113ee1726fd9b263d0e01fe14bd544c007c05a9ac43b6c2d4edbeef3bb3ad456b061ef086626e1e1b27a0cda49cb6bc28aac3ad1691d72ffe00400ed5b45
2023-03-22 01:05:12 +00:00
Andrew Poelstra 311b023eef
Merge rust-bitcoin/rust-bitcoin#1721: Mark `Denomination` as `non_exhaustive`
67618d679d Mark `Denomination` as `non_exhaustive` (Martin Habovstiak)

Pull request description:

  It is possible that we will add new variants to `Denomination` in the future so making it `non_exhaustive` is better for forward compatibility.

ACKs for top commit:
  tcharding:
    ACK 67618d679d
  apoelstra:
    ACK 67618d679d
  sanket1729:
    ACK 67618d679d

Tree-SHA512: a28b7c6577f098b3d64c505e948e3b9fd0cc43a911a2b7c35610ada6a2f75514a1cb05ab8c99212340cf4e34426ac8b5f0ecc65d5afa22d67296e82d878b9308
2023-03-21 23:08:28 +00:00
Andrew Poelstra 86142f17fb
Merge rust-bitcoin/rust-bitcoin#1717: Remove extern crate hashbrown
2d23e11569 Remove extern crate hashbrown (Tobin C. Harding)

Pull request description:

  (Merge candidate only after release of 0.30.0)

  We no longer have a "hashbrown" feature, the feature gated `pub extern crate hashbrown` should have been removed when we removed the feature.

ACKs for top commit:
  apoelstra:
    ACK 2d23e11569
  Kixunil:
    ACK 2d23e11569

Tree-SHA512: 36d4c539f3f972d42bbc9fda9e96063a78d35afc6aebbf534b878dcef0440b72c2a990bcbdbb2ad3bf99cab7048cdbd4002899c2b314da21e4a7bacaf8c71f0f
2023-03-21 22:47:58 +00:00
Tobin C. Harding ffee8ad81b
Bump version to v0.30.0
Add changelog notes and bump the version number to v0.30.0.
2023-03-22 08:41:21 +11:00
Martin Habovstiak 67618d679d Mark `Denomination` as `non_exhaustive`
It is possible that we will add new variants to `Denomination` in the
future so making it `non_exhaustive` is better for forward
compatibility.
2023-03-21 20:21:37 +01:00
junderw 05fdead2a4
Feature: Add difficulty_float method for block::Header. 2023-03-21 10:30:17 -07:00
Tobin C. Harding 2d23e11569
Remove extern crate hashbrown
We no longer have a "hashbrown" feature, the feature gated `pub extern
crate hashbrown` should have been removed when we removed the feature.
2023-03-21 15:14:29 +11:00
Tobin C. Harding 3f16b6bf9f
util: Run the formatter
Run `cargo +nightly fmt`, no other manual changes.
2023-03-21 08:33:24 +11:00
Tobin C. Harding 5973dce9db
blockdata: Run the formatter
Run `cargo +nightly fmt`, no other manual changes.
2023-03-21 08:33:24 +11:00
Tobin C. Harding 0dcbed3c7b
Enable formatting for blockdata
Add `rustfmt::skip` attribute in a couple of places and then remove the
exclude for the `blockdata` module. Do not run the formatter, that will
be done as a separate patch to aid review.
2023-03-21 08:33:23 +11:00
Tobin C. Harding a52746d01c
psbt: Run the formatter
Run `cargo +nightly fmt`, no other manual changes.
2023-03-21 08:33:23 +11:00
Tobin C. Harding 296f2ed82c
Make test panic instead of using code comment
Currently we have a code comment that is supposed to assist devs in
maintaining the `network::constants::Network` type by failing to build
if a new variant is added. This plays havoc with the formatter because
the comment is hanging at the bottom of a match block and the formatting
thinks its for the proceeding line of code.

Instead of using a code comment add a panic so the unit test fails if a
new variant is added to `network::constants::Network`.
2023-03-21 08:33:23 +11:00
Tobin C. Harding 3ec8a12428
crypto: Run the formatter
Run `cargo +nightly fmt`, no other manual changes.
2023-03-21 08:33:23 +11:00
Tobin C. Harding 314e6786b4
crypto: Add rustfmt::skip attributes
In preparation for formatting the `crypto` module add a couple of `skip`
attributes to keep arrays formatted 8 bytes per line.
2023-03-21 08:33:22 +11:00
Tobin C. Harding 450a84f6e8
consensus: Run the formatter
Run `cargo +nightly fmt`, no other manual changes.
2023-03-21 08:33:22 +11:00
Tobin C. Harding ce773af20f
tests: Remove useless use of super imports
We already import `super::*`, these other imports are useless.
2023-03-21 08:33:22 +11:00
Tobin C. Harding ef01f4d0f6
consensus: Introduce local variables
In preparation for running the formatter introduce a couple of local
variables to reduce the line length and inhibit function call from being
split over multiple lines.

Refactor only, no logic changes.
2023-03-21 08:33:22 +11:00
yancy 39e528fdfc Add CentiBitcoin to denominations 2023-03-20 16:39:28 +01:00
Andrew Poelstra 2f404f9b5c
Merge rust-bitcoin/rust-bitcoin#1714: update rust-secp to 0.27.0
bef7992ce5 Update readme to mention pin for 1.47 (Tobin C. Harding)
58033cf14e pin serde dep on 1.47 (Tobin C. Harding)
f5f4a33fa9 pin serde dep on 1.41 (Andrew Poelstra)
ee9b297e98 ci: update dupe check to whitelist syn (Andrew Poelstra)
6aa640ff8d update rust-secp to 0.27.0 (Andrew Poelstra)

Pull request description:

  Also remove the spurious dev-dependency copy of rust-secp, which should've been updated to remove the "recovery" feature in https://www.github.com/rust-bitcoin/rust-bitcoin/pull/545 and then been removed entirely in https://www.github.com/rust-bitcoin/rust-bitcoin/pull/1387

ACKs for top commit:
  Kixunil:
    ACK bef7992ce5
  tcharding:
    ACK bef7992ce5

Tree-SHA512: 7d1bf062dc6920bcafa85311b4b5ed348e31fb20aa21156e545bf7a4cc4c194e2b6dcfd0d3c6db3df337e4e2cd0f7b74f41ea421549521f07080feb88fbd9382
2023-03-20 15:11:12 +00:00
Andrew Poelstra e7521fa225
Merge rust-bitcoin/rust-bitcoin#1710: Support weight prediction in `const` context
00b46d6d9d Indent functions (Martin Habovstiak)
d56d202aeb Support weight prediction in `const` context (Martin Habovstiak)

Pull request description:

  **Notes for reviewers:**
  This is something that I want to use in my code and hopefully reasonably easy to review, so if this can get into 0.30 that'd be really nice. No hard feelings if it doesn't.
  I tried to put extra effort into making review easier by:
  * intentionally "mis-formatting" the first commit so diff is smaller and easy to understand - see individual commits.
  * copying patterns from non-const fn to const fn so it's obviously correct (includes same variable names)
  * not bothering with the array trick in `VarInt::len` and simply accepting the limitation of Rust 1.46+ (I use 1.48 BTW).

  **Description**

  Some smart contracts or simplified wallets statically know the sizes of
  transactions or inputs. The possible approaches to handling them so far
  were re-computing the values (and hoping the optimizer will const fold
  them) or using a simple constant which may be harder to understand and
  get right. It's much nicer to just use a `const` but our code didn't
  support it until now.

  This change adds methods that can compute the prediction in `const`
  context for Rust versions >= 1.46.0 which allow use of loops (and
  conditions but those could be workaround anyway).

  As a side effect of this, the change also adds `const` to `VarInt::len`
  in Rust 1.46+. While this one could be made unconditional using array
  trick it's probably not worth it because of the planned MSRV bump.

ACKs for top commit:
  apoelstra:
    ACK 00b46d6d9d
  tcharding:
    ACK 00b46d6d9d

Tree-SHA512: 5509886a68b4de5227db0e28d92a40be8de64592e0b189c519213db21bcfe98ca03d9a1936b1024729b97db69e8ec0b55fac870a7ce9bab0d0c9a47b2087990f
2023-03-19 13:22:34 +00:00