Enum miniscript::descriptor::Descriptor

pub enum Descriptor<P> {
    Bare(Miniscript<P>),
    Pkh(P),
    Wpkh(P),
    ShWpkh(P),
    Sh(Miniscript<P>),
    Wsh(Miniscript<P>),
    ShWsh(Miniscript<P>),
}

Script descriptor

Variants

Bare(Miniscript<P>)

A raw scriptpubkey (including pay-to-pubkey)

Pkh(P)

Pay-to-PubKey-Hash

Wpkh(P)

Pay-to-Witness-PubKey-Hash

ShWpkh(P)

Pay-to-Witness-PubKey-Hash inside P2SH

Sh(Miniscript<P>)

Pay-to-ScriptHash

Wsh(Miniscript<P>)

Pay-to-Witness-ScriptHash

ShWsh(Miniscript<P>)

P2SH-P2WSH

Methods

impl<P> Descriptor<P>

pub fn translate<F, Q, E>(&self, translatefn: F) -> Result<Descriptor<Q>, E> where
    F: FnMut(&P) -> Result<Q, E>, 

Convert a descriptor using abstract keys to one using specific keys

impl<P: Clone> Descriptor<P>

pub fn abstract_policy(&self) -> AbstractPolicy<P>

Abstract the script into an "abstract policy" which can be filtered and analyzed

impl<P: ToPublicKey> Descriptor<P>

pub fn address(&self, network: Network) -> Option<Address>

Computes the Bitcoin address of the descriptor, if one exists

pub fn script_pubkey(&self) -> Script

Computes the scriptpubkey of the descriptor

pub fn unsigned_script_sig(&self) -> Script

Computes the scriptSig that will be in place for an unsigned input spending an output with this descriptor. For pre-segwit descriptors, which use the scriptSig for signatures, this returns the empty script.

This is used in Segwit transactions to produce an unsigned transaction whose txid will not change during signing (since only the witness data will change).

pub fn witness_script(&self) -> Script

Computes the "witness script" of the descriptor, i.e. the underlying script before any hashing is done. For Bare, Pkh and Wpkh this is the scriptPubkey; for ShWpkh and Sh this is the redeemScript; for the others it is the witness script.

pub fn satisfy<F, H>(
    &self,
    txin: &mut TxIn,
    sigfn: Option<F>,
    hashfn: Option<H>,
    age: u32
) -> Result<(), Error> where
    F: FnMut(&P) -> Option<(Signature, SigHashType)>,
    H: FnMut(Hash) -> Option<[u8; 32]>, 

Attempts to produce a satisfying witness or scriptSig, as the case may be, for the descriptor, and add it to a TxIn object in the appropriate place

pub fn max_satisfaction_weight(&self) -> usize

Computes an upper bound on the weight of a satisfying witness to the transaction. Assumes all signatures are 73 bytes, including push opcode and sighash suffix. Includes the weight of the VarInts encoding the scriptSig and witness stack length.

Trait Implementations

impl<P: Debug + FromStr> FromTree for Descriptor<P> where
    <P as FromStr>::Err: ToString, 

fn from_tree(top: &Tree) -> Result<Descriptor<P>, Error>

Parse an expression tree into a descriptor

impl<P: Eq> Eq for Descriptor<P>

impl<P: Ord> Ord for Descriptor<P>

fn cmp(&self, other: &Descriptor<P>) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl<P: PartialEq> PartialEq<Descriptor<P>> for Descriptor<P>

fn eq(&self, other: &Descriptor<P>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Descriptor<P>) -> bool

This method tests for !=.

impl<P: Clone> Clone for Descriptor<P>

fn clone(&self) -> Descriptor<P>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<P: PartialOrd> PartialOrd<Descriptor<P>> for Descriptor<P>

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

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

fn lt(&self, other: &Descriptor<P>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Descriptor<P>) -> bool

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

fn gt(&self, other: &Descriptor<P>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Descriptor<P>) -> bool

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

impl<P: Debug> Debug for Descriptor<P>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<P: Display> Display for Descriptor<P>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<P: Debug + FromStr> FromStr for Descriptor<P> where
    <P as FromStr>::Err: ToString, 

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Descriptor<P>, Error>

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