Struct LegacyOutputsPref

pub struct LegacyOutputsPref {
    pub pref: Vec<u8>,
}

Prefix is initally encoded in the script pubkey User provides a suffix such that hash of (prefix || suffix) is equal to hashOutputs Since, there is a policy restriction that initial pushes must be only 80 bytes, we need user to provide suffix in separate items There can be atmost 7 cats, because the script element must be less than 520 bytes total in order to compute an hash256 on it. Even if the witness does not require 7 pushes, the user should push 7 elements with possibly empty values.

CAT CAT CAT CAT CAT CAT <pref> SWAP CAT /*Now we hashoutputs on stack */ HASH256 DEPTH <10> SUB PICK EQUALVERIFY

Fields

pref: Vec<u8>

the version of transaction

Trait Implementations

impl Clone for LegacyOutputsPref

fn clone(&self) -> LegacyOutputsPref

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for LegacyOutputsPref

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

Formats the value using the given formatter.

impl Display for LegacyOutputsPref

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

Formats the value using the given formatter.

impl Extension for LegacyOutputsPref

fn segwit_ctx_checks(&self) -> Result<(), ScriptContextError>

Validity rules for fragment in segwit context

fn corr_prop(&self) -> Correctness

Calculate the correctness property for the leaf fragment. See miniscript reference for more info on different types

fn mall_prop(&self) -> Malleability

Calculate the malleability property for the leaf fragment. See miniscript reference for more info on different types

fn extra_prop(&self) -> ExtData

Calculate the Extra properties property for the leaf fragment. See current implementation for different fragments in extra_props.rs

fn script_size(&self) -> usize

Get the script size of the current fragment

fn from_name_tree( name: &str, children: &[Tree<'_>], ) -> Result<Self, FromTokenIterError>

Create an instance of this object from a Tree with root name and children as Vec<Tree>.

fn tap_ctx_checks(&self) -> Result<(), ScriptContextError>

Validity rules for fragment in tap context

impl Hash for LegacyOutputsPref

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

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<Pk: MiniscriptKey> Liftable<Pk> for LegacyOutputsPref

fn lift(&self) -> Result<Semantic<Pk>, Error>

Convert the object into an abstract policy

impl Ord for LegacyOutputsPref

fn cmp(&self, other: &LegacyOutputsPref) -> 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 ParseableExt for LegacyOutputsPref

fn satisfy<Pk, S>(&self, sat: &S) -> Satisfaction

where Pk: ToPublicKey, S: Satisfier<Pk>,

Produce a satisfaction for this from satisfier. See satisfaction code in satisfy.rs for example Note that the Satisfaction struct also covers the case when satisfaction is impossible/unavailable

fn dissatisfy<Pk, S>(&self, sat: &S) -> Satisfaction

where Pk: ToPublicKey, S: Satisfier<Pk>,

Produce a satisfaction for this from satisfier. See satisfaction code in satisfy.rs for example Note that the Satisfaction struct also covers the case when dissatisfaction is impossible/unavailable

fn push_to_builder(&self, builder: Builder) -> Builder

Encoding of the current fragment

fn from_token_iter( tokens: &mut TokenIter<'_>, ) -> Result<Self, FromTokenIterError>

Parse the terminal from TokenIter. Implementers of this trait are responsible for making sure tokens is mutated correctly. If parsing is not successful, the tokens should not be consumed.

fn evaluate( &self, stack: &mut Stack<'_>, _txenv: Option<&TxEnv<'_, '_>>, ) -> Result<bool, Error>

Interpreter support Evaluate the fragment based on inputs from stack. If an implementation of this is provided the user can use the interpreter API to parse scripts from blockchain and check which constraints are satisfied Output Ok(true) when the ext fragment is satisfied. Output Ok(false) when the ext fragment is dissatisfied, Output Some(Err) when there is an error in interpreter value.

impl PartialEq for LegacyOutputsPref

fn eq(&self, other: &LegacyOutputsPref) -> 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 LegacyOutputsPref

fn partial_cmp(&self, other: &LegacyOutputsPref) -> 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 Eq for LegacyOutputsPref

impl StructuralPartialEq for LegacyOutputsPref