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.
Note: this commit is intentionally unformatted to make diff easier to
understand. Formatting will be done in future commit.
a6188a90c0 Improve QR code formatting documentation (Martin Habovstiak)
Pull request description:
It wasn't obvious that displaying address with alternate formatting upper cases bech32 addresses.
This change adds information about this and also a note about the compatibility of various wallets.
BTW why do we prefix upper case `BITCOIN` only in case of bech32? Proper BIP21 should support it for all addresses. (And yest, it still does save space.)
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It wasn't obvious that displaying address with alternate formatting
upper cases bech32 addresses.
This change adds information about this and also a note about the
compatibility of various wallets.
2158f88f1d Add a method to `pow::Target` for returning difficulty as an f64. (junderw)
Pull request description:
Closes#1703
This adds a conversion function to U256 to get an f64. We use the method shown in the following blog post.
https://blog.m-ou.se/floats/
Target::MAX was converted to a f64 and set as a const that is verified in a unit test.
The code is rather confusing, so I took a crack at explaining it in my comments as well. Please let me know if you want it cleaned up some more.
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9dd4c54a74 Fix CI builds where default features are added accidentally (Steven Roose)
Pull request description:
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f0a3aad5b8 Add tests to Weight type (yancy)
Pull request description:
Add tests for Weight type
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This adds a conversion function to U256 to get an f64. We use the method shown in the following blog post. https://blog.m-ou.se/floats/
Target::MAX was converted to a f64 and set as a const that is verified in a unit test.
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.
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sanket1729:
utACK bfd401c96e. ChangeLog looks good to me, did not review whether all noteworthy changes were included.
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e3f95ee22b Add tests for the FeeRate type (yancy)
Pull request description:
Adds some tests for the `FeeRate` type.
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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.
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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.
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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.
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.
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.
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.
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.
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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;
````
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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.
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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.
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
Cleanly separate `TapTree` and `NodeInfo`. Fix serde not respecting
invariants for several data structures
Repurpose some tests from removed taproot builder for taptree
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
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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`
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:
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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.
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56569b32ef Add utils to convert ChainHash to a Network (benthecarman)
Pull request description:
ACKs for top commit:
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Martin Habovstiak
Steve Myers
Salvatore Ingala
Andrew Poelstra
Steven Roose
junderw
yancy
Tobin C. Harding
Subhradeep Chakraborty
sanket1729
benthecarman