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Merge rust-bitcoin/rust-bitcoin#1946: bitcoin/bip32: add DerivationPath::to_u32_vec 

6640074d34 bitcoin/bip32: add DerivationPath::to_u32_vec (Marko Bencun)

Pull request description:

  This is useful to pass the keypath to other libraries which expect it to be represented with a list of u32 ints.

  Fixes #1944

ACKs for top commit:
  apoelstra:
    ACK 6640074d34
  RCasatta:
    ACK 6640074d34

Tree-SHA512: c2327716370558dd9d7e0419f898707ba5e56555284ea7ca746c973080061aae53674b41d8fe7c68a00d7c4bec1e4bb53e8991141749a87dfa40febe9f456369
This commit is contained in:
Riccardo Casatta 2023-07-18 20:19:41 +02:00
parent 28f6ad80cb 6640074d34
commit 63a09649f7
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bitcoin/src/bip32.rs
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@ -412,6 +412,20 @@ impl DerivationPath {
new_path.0.extend_from_slice(path.as_ref()); new_path.0.extend_from_slice(path.as_ref());
new_path new_path
} }
/// Returns the derivation path as a vector of u32 integers.
/// Unhardened elements are copied as is.
/// 0x80000000 is added to the hardened elements.
///
/// ```
/// use bitcoin::bip32::DerivationPath;
/// use std::str::FromStr;
///
/// let path = DerivationPath::from_str("m/84'/0'/0'/0/1").unwrap();
/// const HARDENED: u32 = 0x80000000;
/// assert_eq!(path.to_u32_vec(), vec![84 + HARDENED, HARDENED, HARDENED, 0, 1]);
/// ```
pub fn to_u32_vec(&self) -> Vec<u32> { self.into_iter().map(|&el| el.into()).collect() }
} }
impl fmt::Display for DerivationPath { impl fmt::Display for DerivationPath {