Struct DerivationPath

pub struct DerivationPath(/* private fields */);

A BIP-32 derivation path.

Implementations

impl DerivationPath

pub fn len(&self) -> usize

Returns length of the derivation path

pub fn is_empty(&self) -> bool

Returns true if the derivation path is empty

pub fn master() -> DerivationPath

Returns derivation path for a master key (i.e. empty derivation path)

pub fn is_master(&self) -> bool

Returns whether derivation path represents master key (i.e. it’s length is empty). True for m path.

pub fn child(&self, cn: ChildNumber) -> DerivationPath

Create a new DerivationPath that is a child of this one.

pub fn into_child(self, cn: ChildNumber) -> DerivationPath

Convert into a DerivationPath that is a child of this one.

pub fn children_from(&self, cn: ChildNumber) -> DerivationPathIterator<'_>

Get an Iterator over the children of this DerivationPath starting with the given ChildNumber.

pub fn normal_children(&self) -> DerivationPathIterator<'_>

Get an Iterator over the unhardened children of this DerivationPath.

pub fn hardened_children(&self) -> DerivationPathIterator<'_>

Get an Iterator over the hardened children of this DerivationPath.

pub fn extend<T>(&self, path: T) -> DerivationPath

where T: AsRef<[ChildNumber]>,

Concatenate self with path and return the resulting new path.

use bitcoin::bip32::{DerivationPath, ChildNumber};
use std::str::FromStr;

let base = DerivationPath::from_str("m/42").unwrap();

let deriv_1 = base.extend(DerivationPath::from_str("0/1").unwrap());
let deriv_2 = base.extend(&[
    ChildNumber::from_normal_idx(0).unwrap(),
    ChildNumber::from_normal_idx(1).unwrap()
]);

assert_eq!(deriv_1, deriv_2);

pub fn to_u32_vec(&self) -> Vec<u32>

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]);

Trait Implementations

impl AsRef<[ChildNumber]> for DerivationPath

fn as_ref(&self) -> &[ChildNumber]

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for DerivationPath

fn clone(&self) -> DerivationPath

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DerivationPath

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for DerivationPath

fn default() -> DerivationPath

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DerivationPath

fn deserialize<D>( deserializer: D, ) -> Result<DerivationPath, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for DerivationPath

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'a> From<&'a [ChildNumber]> for DerivationPath

fn from(numbers: &'a [ChildNumber]) -> DerivationPath

Converts to this type from the input type.

impl From<DerivationPath> for Vec<ChildNumber>

fn from(path: DerivationPath) -> Vec<ChildNumber>

Converts to this type from the input type.

impl From<Vec<ChildNumber>> for DerivationPath

fn from(numbers: Vec<ChildNumber>) -> DerivationPath

Converts to this type from the input type.

impl FromIterator<ChildNumber> for DerivationPath

fn from_iter<T>(iter: T) -> DerivationPath

where T: IntoIterator<Item = ChildNumber>,

Creates a value from an iterator.

impl FromStr for DerivationPath

type Err = Error

The associated error which can be returned from parsing.

fn from_str(path: &str) -> Result<DerivationPath, Error>

Parses a string s to return a value of this type.

impl Hash for DerivationPath

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<I> Index<I> for DerivationPath

where Vec<ChildNumber>: Index<I>,

type Output = <Vec<ChildNumber> as Index<I>>::Output

The returned type after indexing.

fn index(&self, index: I) -> &<DerivationPath as Index<I>>::Output

Performs the indexing (container[index]) operation.

impl<'a> IntoIterator for &'a DerivationPath

type Item = &'a ChildNumber

The type of the elements being iterated over.

type IntoIter = Iter<'a, ChildNumber>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <&'a DerivationPath as IntoIterator>::IntoIter

Creates an iterator from a value.

impl Ord for DerivationPath

fn cmp(&self, other: &DerivationPath) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for DerivationPath

fn eq(&self, other: &DerivationPath) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for DerivationPath

fn partial_cmp(&self, other: &DerivationPath) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for DerivationPath

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for DerivationPath

impl StructuralPartialEq for DerivationPath