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bitcoin/bip32: add DerivationPath::to_u32_vec 

This is useful to pass the keypath to other libraries which expect it
to be represented with a list of u32 ints.
This commit is contained in:
Marko Bencun 2023-07-18 14:16:24 +02:00
parent 922996b032
commit 6640074d34
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1 changed files with 14 additions and 0 deletions
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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 {