Commit Graph

3347 Commits

Author SHA1 Message Date
yancy b311e96603 Fix weight subtract bug 2023-03-08 12:22:50 +01:00
Andrew Poelstra be02045561
update internals CHANGELOG for release 2023-03-08 02:39:15 +00:00
Andrew Poelstra 9ffbbb8efb
Merge rust-bitcoin/rust-bitcoin#1694: release bitcoin_hashes 0.12
bfd401c96e bitcoin_hashes: add CHANgELOG (Andrew Poelstra)
d1b7b54e3a bump bitcoin-hashes version to 0.12 (Andrew Poelstra)

Pull request description:

  It was a little tricky to bump the version number because of https://github.com/rust-bitcoin/rust-bitcoin/issues/1553. There are a couple other things I considered trying, which maybe we'll do for future releases, but I believe this works for now.

  Maybe should wait for #1111.

ACKs for top commit:
  tcharding:
    ACK bfd401c96e
  sanket1729:
    utACK bfd401c96e. ChangeLog looks good to me, did not review whether all noteworthy changes were included.

Tree-SHA512: d2104fc93e364415ae955e8123e6087c1eaa4c955aeaf4647ead051a223563326f66c0e278d68f64335e22c9d0af9b296dc3b744cd9d82d206844461fe7bf9c9
2023-03-08 02:13:45 +00:00
Andrew Poelstra d6134248df
Merge rust-bitcoin/rust-bitcoin#1690: Add tests for the FeeRate type
e3f95ee22b Add tests for the FeeRate type (yancy)

Pull request description:

  Adds some tests for the `FeeRate` type.

ACKs for top commit:
  apoelstra:
    ACK e3f95ee22b
  tcharding:
    ACK e3f95ee22b
  Kixunil:
    ACK e3f95ee22b

Tree-SHA512: 74d6597c747d5aa62a6510bf9fa8de971f89ad56f571aadd496f6487e80cc88bb2b5a1c6bcfed825d09d18ca2310b2bfd6fdbe330f2760369d167a653d26bef8
2023-03-08 01:07:48 +00:00
Andrew Poelstra e9e8be3acc
Merge rust-bitcoin/rust-bitcoin#1692: Add constants to `InputWeightPrediction`
3eb648df01 Add constants to `InputWeightPrediction` (Martin Habovstiak)

Pull request description:

  There are several common spends in Bitcoin that have known input weight predictions. It can be useful to have these as constants, so this change adds them. However, this only adds native segwit ones as the others are slowly fading away and might clutter the API.

  If anyone wants other constants, please write them for me, their value is not that great to me so I'm not motivated to figure out the correct numbers. :)

  This would be nice to add to 0.30 since it's small and easy but not critical.

ACKs for top commit:
  apoelstra:
    ACK 3eb648df01
  tcharding:
    ACK 3eb648df01
  sanket1729:
    ACK 3eb648df01

Tree-SHA512: 51d2cd2ecef7e6b79f9d4b52319e34b908fe8b5a337551dc2088994feeafc9c3ca87884c3db8369f8bd002947d6d14b373f08ef1419db282713206ed6f1b309a
2023-03-08 00:37:05 +00:00
Andrew Poelstra cfc4fd943f
Merge rust-bitcoin/rust-bitcoin#1695: fix clippy lint
4a2f11cc49 fix clippy lint (Andrew Poelstra)

Pull request description:

  Looks like a new clippy lint landed.

ACKs for top commit:
  yancyribbens:
    ACK 4a2f11cc49
  tcharding:
    ACK 4a2f11cc49
  sanket1729:
    utACK 4a2f11cc49

Tree-SHA512: 04fd77c2daeeeed99ea854731d73bcb43fbe5fbdba2e241a93a5058ca81f05dfbf6759d055236a8c70c58331d2b93d0fafd81e7cd631b636f881d9a0b1cdc5ca
2023-03-07 21:11:52 +00:00
Andrew Poelstra e074ee4316
Merge rust-bitcoin/rust-bitcoin#1111: Run cargo fmt in CI
2d6467f980 Add cargo fmt to pre-commit githook (Tobin C. Harding)
55312f2972 Update contributing docs re cargo fmt (Tobin C. Harding)
c1360067e9 Enable formatting in CI (Tobin C. Harding)
61c560baba Improve the DO_BENCH error message (Tobin C. Harding)
a11cf07501 Run the formatter (Tobin C. Harding)
21d716b313 Use new fn_params_layout option (Tobin C. Harding)

Pull request description:

  Run the formatter in CI so we stop continually introducing formatting problems in the code that is currently supposed to be formatted.

ACKs for top commit:
  apoelstra:
    ACK 2d6467f980
  sanket1729:
    ACK 2d6467f980

Tree-SHA512: 0dbe12bb853b0ec6102066118a9272462bf9ebf2dc53b1394c294185b9d4a824ba0cca478f500fcc44088e4bc54a61153402a6911f285435b68bc9a306f9f11f
2023-03-07 13:25:39 +00:00
Martin Habovstiak 3eb648df01 Add constants to `InputWeightPrediction`
There are several common spends in Bitcoin that have known input weight
predictions. It can be useful to have these as constants, so this change
adds them. However, this only adds native segwit ones as the others are
slowly fading away and might clutter the API.
2023-03-07 09:50:13 +01:00
Tobin C. Harding 2d6467f980
Add cargo fmt to pre-commit githook
To save devs getting frustrated by CI; add a call to `cargo +nightly
fmt` to our git pre-commit hook.
2023-03-07 08:58:13 +11:00
Tobin C. Harding 55312f2972
Update contributing docs re cargo fmt
Now that we use `cargo fmt`, update the section in the contributing
documentation.
2023-03-07 08:58:13 +11:00
Tobin C. Harding c1360067e9
Enable formatting in CI
Enable formatting in CI by doing:

- Add a section to the `test.sh` scripts to run the formatter (guarded by
  the env variable `DO_FMT`) for all crates (bitcoin, hashes, internals).
- Add `DO_FMT` to the nightly `Tests` CI job.
2023-03-07 08:57:32 +11:00
yancy e3f95ee22b Add tests for the FeeRate type 2023-03-06 10:30:45 +01:00
Tobin C. Harding 61c560baba
Improve the DO_BENCH error message
Benchmarking requires a non-stable toolchain not a nightly toolchain
i.e., includes beta.

Improve the error output to indicate as such.
2023-03-06 10:22:31 +11:00
Tobin C. Harding a11cf07501
Run the formatter
Various formatting issues have crept into the codebase because we do not
run the formatter in CI.

In preparation for enabling formatting checks in CI run `cargo +nightly
fmt` to fix current formatting issues. No changes other than those
create by the formatter.
2023-03-06 10:22:29 +11:00
Tobin C. Harding 21d716b313
Use new fn_params_layout option
The `fn_args_layout` rustfmt option was recently changed to
`fn_params_layout`, use the new name.
2023-03-06 10:21:29 +11:00
Andrew Poelstra 4a2f11cc49
fix clippy lint 2023-03-05 17:19:03 +00:00
Andrew Poelstra bfd401c96e
bitcoin_hashes: add CHANgELOG 2023-03-05 13:53:45 +00:00
Andrew Poelstra d1b7b54e3a
bump bitcoin-hashes version to 0.12
Because we have rust-secp in the loop, we need to update rust-secp, push
a new tag, and use that here, to ensure that the direct dependency on
bitcoin_hashes, and the rust-secp version, are compatible.
2023-03-05 13:40:20 +00:00
Andrew Poelstra 10eb0da1ef
Merge rust-bitcoin/rust-bitcoin#1533: Implement support for Hidden nodes in taproot trees and Fix taproot serde bugs
74022baa44 Rename ScriptLeaf to LeafNode (sanket1729)
289dc1e7f5 Remove serde for taprootspendinfo (sanket1729)
a397ab0c19 Remove serde for ScriptLeaf (sanket1729)
9affda3012 Introduce Hidden leaves in ScriptLeaves (sanket1729)
22bc39a143 Fix serde for TaprootMerkleBranch (sanket1729)
38ed9bdf49 MOVE ONLY: Move TapTree to taproot module (sanket1729)

Pull request description:

  This PR changes/removes the serde implementation for the following types

  - TaprootSpendInfo: Removed. This data structure contains derived information for taproot spending that cannot be validated easily. To elaborate, `TaprootSpendInfo` is constructed from a tree, but loses information about the tree structure and maintains handy information like `script_control_block_map`, cached tweaked key, Merkle root etc.
  - TaprootBuillder: Removed. Hard to implement and not very useful.
  - TapTree: Modified to check invariants.
  - NodeInfo: Now implements serde with support for Hidden nodes
  - ScriptLeaf: Removed serde. Users should not directly construct this. This is just an output iterator item of `TapTree::script_leaves()`

  Data structure changes:

  - Introduced `LeafNode`: Supports Hidden leaves. Has serde implemented
  - Cleanly separate `TapTree` and `NodeInfo`:  `TapTree` is a full BIP370 compatible tree with no hidden nodes. `NodeInfo` is a tree that can potentially contain hidden leaves.
  - Added `NodeInfo::leaf_nodes`: Iterator that iterates over known and hidden leaves of `NodeInfo`.
  - Updated `TapTree::script_leaves`: Iterator that is guaranteed to output known leaves.

ACKs for top commit:
  tcharding:
    ACK 74022baa44
  apoelstra:
    ACK 74022baa44

Tree-SHA512: 919ea5bf60dc0cd8431301c1b744b046d1d781b3bed302b83a600cfa644216b6c682752795d463646b2723ac8661879284f557862a67e4572fd965fcf3dc194d
2023-03-04 13:41:37 +00:00
Andrew Poelstra 1679ad878d
Merge rust-bitcoin/rust-bitcoin#1685: Improve the public API for Feerate and Weight
b0b0cdb46c Improve the public API for Feerate and Weight (yancy)

Pull request description:

  Small nit for https://github.com/rust-bitcoin/rust-bitcoin/pull/1627/ to re-export `Weight` and `FeeRate` to shorten the use path.

  ```
  use bitcoin::Weight;
  use bitcoin::FeeRate;
  ````

ACKs for top commit:
  tcharding:
    ACK b0b0cdb46c
  Kixunil:
    ACK b0b0cdb46c
  apoelstra:
    ACK b0b0cdb46c

Tree-SHA512: 81e508c980c4f37e3791d26616459608dd60e5a6255ef28b3a049c1d27281b2853b92474d42f10031254c8c46878adf666eb709826aa4ffde1b4b3542451e080
2023-03-04 01:55:53 +00:00
Andrew Poelstra ea606d93a0
Merge rust-bitcoin/rust-bitcoin#1682: Include address in Error::NetworkValidation
73e876ffd4 Include address in Error::NetworkValidation (Subhradeep Chakraborty)

Pull request description:

  Fixes: #1677

  ## Change
  In `bitcoin/src/address.rs`, a new field `address` is added to the enum variant `Error::NetworkValidation`. Also, the implementation of `Display` trait for `Error` is updated to print the `address` field.

  However, to print the `address` through `Display`, either the reference is needed or `Address` and `Payload` both need to derive the `Copy` trait. Since I am little new to both the rust-bitcoin codebase and rust itself, I am confused about choosing between the two and have moved with the first one. Would appreciate any feedback on this.

ACKs for top commit:
  Kixunil:
    ACK 73e876ffd4
  tcharding:
    ACK 73e876ffd4
  apoelstra:
    ACK 73e876ffd4

Tree-SHA512: dd53b8648bccc8372c829e56817402fb02a9d51d1dffc854f24e68814bbefe7ea777f67aefb0d170762dbf6cdd50bd3ec55af325a1ffc21b1241d1df5531cd24
2023-03-03 16:09:21 +00:00
Subhradeep Chakraborty 73e876ffd4 Include address in Error::NetworkValidation 2023-03-02 20:46:48 +05:30
yancy b0b0cdb46c Improve the public API for Feerate and Weight 2023-03-02 09:57:36 +01:00
sanket1729 74022baa44 Rename ScriptLeaf to LeafNode
ScriptLeaf feels like leaf has to be a script, but it can a hidden
subtree. LeafNode conveys this better
2023-03-01 16:59:13 -08:00
sanket1729 289dc1e7f5 Remove serde for taprootspendinfo
Implementing this for spendinfo is really complicated because it
contains some cached data without retaining the components that are used
to compute them.

Users should serde the 1) NodeInfo and 2) internal key and reconstruct
TaprootSpendInfo from it.
2023-03-01 16:58:24 -08:00
sanket1729 a397ab0c19 Remove serde for ScriptLeaf
This was incorrect and not needed. Users should not be able to create
only tree leaves directly without going through the tree construction in
rust-bitcoin
2023-03-01 16:58:24 -08:00
sanket1729 9affda3012 Introduce Hidden leaves in ScriptLeaves
Cleanly separate `TapTree` and `NodeInfo`. Fix serde not respecting
invariants for several data structures

Repurpose some tests from removed taproot builder for taptree
2023-03-01 16:58:24 -08:00
sanket1729 22bc39a143 Fix serde for TaprootMerkleBranch 2023-03-01 16:57:56 -08:00
sanket1729 38ed9bdf49 MOVE ONLY: Move TapTree to taproot module 2023-03-01 16:57:55 -08:00
Andrew Poelstra 2cf1a4c088
Merge rust-bitcoin/rust-bitcoin#1678: Improve the public API
42b07586ac Improve the public API (Tobin C. Harding)

Pull request description:

  We created the `crypto` crate as a container for cryptography modules with the idea that it may be split out into a separate crate. There is no reason for users of the lib to know about this module. Also, we have two `taproot` modules, one in `crypto` and one at the crate root, this makes for un-ergonomic usage of the lib.

  Improve the public API by doing:

  - Make the `crypto` module private (`pub(crate)`).
  - Re-export `crypto::taproot::Signature` (and `Error`) from `crate::taproot`

  Fix: #1668

ACKs for top commit:
  apoelstra:
    ACK 42b07586ac
  Kixunil:
    ACK 42b07586ac

Tree-SHA512: 5713b98b2a48d2776cdd6ca2c0e798d6e2df604d780e5182bd770fb2df807cf1f65bc24663ee6f7734fc1e0c80494c5a87dc60e44c83acefcffec7f059203a47
2023-03-01 15:42:36 +00:00
Tobin C. Harding 42b07586ac
Improve the public API
We created the `crypto` crate as a container for cryptography modules
with the idea that it may be split out into a separate crate. There is
no reason for users of the lib to know about this module. Also, we have
two `taproot` modules, one in `crypto` and one at the crate root, this
makes for un-ergonomic usage of the lib.

Improve the public API by doing:

- Make the `crypto` module private (`pub(crate)`).
- Re-export `crypto::taproot::Signature` (and `Error`) from
  `crate::taproot`
2023-03-01 09:28:42 +11:00
Andrew Poelstra 5ad2bec626
Merge rust-bitcoin/rust-bitcoin#1679: Add constant for coinbase maturity
7d1645aea0 Add constant for coinbase maturity (benthecarman)

Pull request description:

  Not sure if this is the best place to put this but it is nice to have a constant for this instead of having other libraries make their own (ie https://github.com/lightningdevkit/rust-lightning/pull/1924#pullrequestreview-1222807626)

ACKs for top commit:
  tcharding:
    ACK 7d1645aea0
  apoelstra:
    ACK 7d1645aea0

Tree-SHA512: 5ac2a3359cadd303158c66ba45db8f4bf8cc80b6c19604262999ff361fd0bd98e2a4851c57da1962cb5c74f5789a85c8b3861f1742706a60ce1fbc57c3c200cc
2023-02-28 22:01:34 +00:00
benthecarman 7d1645aea0
Add constant for coinbase maturity 2023-02-28 05:37:10 -06:00
Andrew Poelstra ac8702f32f
Merge rust-bitcoin/rust-bitcoin#1670: `hash_newtype` cleanup
8ccfb412c1 Improve documentation of `hash_newtype!` (Martin Habovstiak)
58876e2be9 Remove unused macro (Martin Habovstiak)

Pull request description:

  Removed unused macro and improved documentation to address review of #1659 - see commits. I also added a note about recursion.

ACKs for top commit:
  apoelstra:
    ACK 8ccfb412c1
  tcharding:
    ACK 8ccfb412c1

Tree-SHA512: 3b4b0c4ffc8a5166619110d9dcb51affd5cafbb2af84a55dd540a815e4702514d99c71dc1c54aca27fb91970e7e7189d1dffb4f7da7951b0f71336ef6f32d30b
2023-02-28 01:34:38 +00:00
Andrew Poelstra 13143d0f6f
Merge rust-bitcoin/rust-bitcoin#1675: Add utils to convert ChainHash to a Network
56569b32ef Add utils to convert ChainHash to a Network (benthecarman)

Pull request description:

ACKs for top commit:
  Kixunil:
    ACK 56569b32ef
  tcharding:
    ACK 56569b32ef

Tree-SHA512: a489fcb1c1208db4271076d88288658988a63209e56e7433bde82d7d5719450433348fcc3cb6aae59ffa6ed8aff510d6b031c6899d5cf64c503a53b2d4c692b8
2023-02-27 23:55:24 +00:00
benthecarman 56569b32ef
Add utils to convert ChainHash to a Network 2023-02-27 12:28:04 -06:00
Andrew Poelstra 4d8ba9be31
Merge rust-bitcoin/rust-bitcoin#1577: Re-name hash inner/byte methods
161273b209 Re-name hash inner/byte methods (Tobin C. Harding)
324b6f264b Use `into` for hash argument (Tobin C. Harding)

Pull request description:

  Currently we have an associated type on hash types `Inner` with accompanying methods `into_inner`, `from_inner`, `as_inner`. Also, we provide a way to create new wrapped hash types. The use of 'inner' becomes ambiguous with the addition of wrapped types because the inner could be the inner hash type or the `Inner` byte array of the inner wrapped hash type.

  In an effort to make the API more clear and uniform do the following:

  - Rename `Inner` -> `Bytes`
  - Rename `*_inner` -> `*_byte_array`
  - Rename the inner hash to/from methods to `*_raw_hash`

  Correct method prefix `into_` -> `to_` because theses methods convert owned `Copy` types.

  Add the trait Bound `Copy` to the `Bytes` type because we rely on this trait bound for the conversion methods to be correctly named according to convention.

  Because of the dependency hole created by `secp256k1` this patch changes the secp dependency to a git tag dependency that includes changes to the hashes calls required so that we can get green lights on CI in this repo.

  Fix: #1554

ACKs for top commit:
  Kixunil:
    ACK 161273b209
  apoelstra:
    ACK 161273b209

Tree-SHA512: b51b851a1855e6a26a7ef8ccb9f554723d4cc39b368812703587a50e81e7ab49714a81696af0be743b947f09e1fca227a5331b6735912c5b0d5cd0178905f006
2023-02-27 17:28:14 +00:00
Andrew Poelstra a40427b177
Merge rust-bitcoin/rust-bitcoin#1676: Fix docs for UnknownMagic to be accurate
a4b5fb4002 Fix docs for UnknownMagic to be accurate (benthecarman)

Pull request description:

  I assume the old docs are a copy-paste error, strings are not involved when this error is encountered.

ACKs for top commit:
  Kixunil:
    ACK a4b5fb4002
  apoelstra:
    ACK a4b5fb4002

Tree-SHA512: b2b71f81be8a0d979b15471e7262e01284443e05626b26a19236fd25581700d9e37409576a4b73d5bb537c49ae83a4b7d40f0888dff078b07bd7550026cd778a
2023-02-27 15:54:07 +00:00
Andrew Poelstra 826a988be8
Merge rust-bitcoin/rust-bitcoin#1674: Reexport `Magic`
76c4c647cf Reexport `Magic` (Martin Habovstiak)

Pull request description:

  Writing `network::Magic` is more natural and less annoying than `network::constants::Magic`, so this change reexports it.

  Closes #1667

ACKs for top commit:
  apoelstra:
    ACK 76c4c647cf
  tcharding:
    ACK 76c4c647cf

Tree-SHA512: 1d85372ecd9723c0871faa4552ba5f93a3c95d0b213fa8aace398949f97157cdfde164bbcb2c35bae4c61ae0185e3fbdb854714cde0849c1afaf90e4e8ec223f
2023-02-27 13:51:03 +00:00
Martin Habovstiak 8ccfb412c1 Improve documentation of `hash_newtype!`
The macro is non-trivial, so documenting it well is very useful. This
change improves both user-facing and developer-facing code with
appropriate warnings about the limitations of the code and Rust macro
system.
2023-02-27 11:59:04 +01:00
benthecarman a4b5fb4002
Fix docs for UnknownMagic to be accurate 2023-02-27 00:33:20 -06:00
Tobin C. Harding 161273b209
Re-name hash inner/byte methods
Currently we have an associated type on hash types `Inner` with
accompanying methods `into_inner`, `from_inner`, `as_inner`. Also, we
provide a way to create new wrapped hash types. The use of 'inner'
becomes ambiguous with the addition of wrapped types because the inner
could be the inner hash type or the `Inner` byte array of the inner
wrapped hash type.

In an effort to make the API more clear and uniform do the following:

- Rename `Inner` -> `Bytes`
- Rename `*_inner` -> `*_byte_array`
- Rename the inner hash to/from methods to `*_raw_hash`

Correct method prefix `into_` -> `to_` because theses methods convert
owned `Copy` types.

Add the trait Bound `Copy` to the `Bytes` type because we rely on this
trait bound for the conversion methods to be correctly named according
to convention.

Because of the dependency hole created by `secp256k1` this patch changes
the secp dependency to a git tag dependency that includes changes to the
hashes calls required so that we can get green lights on CI in this
repo.
2023-02-27 14:23:58 +11:00
Tobin C. Harding 324b6f264b
Use `into` for hash argument
Hash types can be converted into a `Message` because `Message`
implements `From` for any type that implements `ThirtyTwoByteHash`,
which hash types do.

Use `into` to convert the hash argument to a message to sign.
2023-02-27 12:00:08 +11:00
Andrew Poelstra 5a867821aa
Merge rust-bitcoin/rust-bitcoin#1623: Improve string parsing
090dad770f Improve string parsing (Tobin C. Harding)

Pull request description:

  Currently we implement string parsing for height/time from the `absolute` module but not the `relative` module.

  Improve the macros used to implement string parsing and use the new versions to implement string parsing for the height and time types in `relative`.

  Done while reviewing data structures in relation to `serde`.

ACKs for top commit:
  apoelstra:
    ACK 090dad770f
  Kixunil:
    ACK 090dad770f

Tree-SHA512: bfa88efbaf5dc35755eb46df373a08e223f112860e8a65f58db9fdd77e2c01dc9377da735b33ef58940004fe5fe11690ac09be19591fded2c9fd04cd7d2bdf73
2023-02-25 21:16:38 +00:00
Martin Habovstiak 76c4c647cf Reexport `Magic`
Writing `network::Magic` is more natural and less annoying than
`network::constants::Magic`, so this change reexports it.

Closes #1667
2023-02-25 19:10:36 +01:00
Andrew Poelstra 277eef486a
Merge rust-bitcoin/rust-bitcoin#1672: Accept borrowed values in InputWeightPrediction::new()
f62885890d Accept borrowed values in InputWeightPrediction::new() (Harshil Jani)

Pull request description:

  The updated implementation accepts borrowed values and now it is convenient to use with slices.

  closes #1669

ACKs for top commit:
  Kixunil:
    ACK f62885890d
  apoelstra:
    ACK f62885890d

Tree-SHA512: 59459e640a9676f3c293b10227026635b06fe55d31ffd2da606c0c70aac614694f48ba2f43bb3e8dce047e35e007fb2b09528d7dcfd0772e6b678680e2d781ea
2023-02-25 17:22:24 +00:00
Harshil Jani f62885890d Accept borrowed values in InputWeightPrediction::new()
Signed-off-by: Harshil Jani <harshiljani2002@gmail.com>
2023-02-25 17:20:40 +05:30
Martin Habovstiak 58876e2be9 Remove unused macro
This macro was a part of previous failed design and is no longer used.
This change removes it.
2023-02-24 21:38:36 +01:00
Andrew Poelstra fbb3b82b93
Merge rust-bitcoin/rust-bitcoin#1663: Create Address::matches_script_pubkey method
d71c31c235 Create Address::matches_script_pubkey method (hashmap)

Pull request description:

  to check if an address creates a particular script without allocating.

  fixes rust-bitcoin/rust-bitcoin#1604

ACKs for top commit:
  Kixunil:
    ACK d71c31c235
  apoelstra:
    ACK d71c31c235

Tree-SHA512: cb60a53ae2be7c47dcd27415c883a73c81d57cbbf0bc92eaf76243d79d9c8e2c2efe91bef65a7e67ed26fec376f11325709ff27025d054813b1907ea2bf4961c
2023-02-24 14:51:05 +00:00
Andrew Poelstra 9c1872f96d
Merge rust-bitcoin/rust-bitcoin#1659: Make `hash_newtype` evocative of the output
06f1f027ab Make `hash_newtype` evocative of the output (Martin Habovstiak)
b018f3e90b Remove the `$len` argument from `hash_newtype` (Martin Habovstiak)
752817e20d Stop using `$len` in `hash_newtype` (Martin Habovstiak)

Pull request description:

  The API guidelines say macro input should be evocative of the output.
  `hash_newtype` didn't have this property.

  This change makes it look exactly like the resulting struct, `$len`
  parameter was removed since it's not needed, reversing is controlled
  using an attribute. The macro is also better documented and ready to be
  extended in the future.

  The tagged SHA256 newtype is not yet modified because it has a more
  complicated input parameters.

  Closes #1648

ACKs for top commit:
  apoelstra:
    ACK 06f1f027ab

Tree-SHA512: 9762db1eca9cd749980e5d68ca286f6c926620295a602f62365f199c7b333334b976db25ba25c64e56403cd1ba046b21b99e1c73cc528ad95612ef8901f216e5
2023-02-24 13:47:22 +00:00