Enum bdk::descriptor::Legacy

pub enum Legacy {}

Legacy ScriptContext To be used as P2SH scripts For creation of Bare scriptpubkeys, construct the Miniscript under Bare ScriptContext

Trait Implementations

impl Clone for Legacy

pub fn clone(&self) -> Legacy

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Legacy

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

Formats the value using the given formatter.

impl Hash for Legacy

pub 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, 

Feeds a slice of this type into the given Hasher.

impl Ord for Legacy

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

This method returns an Ordering between self and other.

#[must_use]

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

Compares and returns the maximum of two values.

#[must_use]

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

Compares and returns the minimum of two values.

#[must_use]

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

Restrict a value to a certain interval.

impl PartialEq<Legacy> for Legacy

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

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

#[must_use]

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

This method tests for !=.

impl PartialOrd<Legacy> for Legacy

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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

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

impl ScriptContext for Legacy

pub fn check_terminal_non_malleable<Pk, Ctx>(
    frag: &Terminal<Pk, Ctx>
) -> Result<(), ScriptContextError> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Depending on ScriptContext, fragments can be malleable. For Example, under Legacy context, PkH is malleable because it is possible to estimate the cost of satisfaction because of compressed keys This is currently only used in compiler code for removing malleable compilations. This does NOT recursively check if the children of the fragment are valid or not. Since the compilation proceeds in a leaf to root fashion, a recursive check is unnecessary.

pub fn check_witness<Pk, Ctx>(
    witness: &[Vec<u8, Global>]
) -> Result<(), ScriptContextError> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Check whether the given satisfaction is valid under the ScriptContext For example, segwit satisfactions may fail if the witness len is more 3600 or number of stack elements are more than 100.

pub fn check_global_consensus_validity<Pk, Ctx>(
    ms: &Miniscript<Pk, Ctx>
) -> Result<(), ScriptContextError> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Depending on script Context, some of the Terminals might not be valid under the current consensus rules. Or some of the script resource limits may have been exceeded. These miniscripts would never be accepted by the Bitcoin network and hence it is safe to discard them For example, in Segwit Context with MiniscriptKey as bitcoin::PublicKey uncompressed public keys are non-standard and thus invalid. In LegacyP2SH context, scripts above 520 bytes are invalid. Post Tapscript upgrade, this would have to consider other nodes. This does NOT recursively check the miniscript fragments.

pub fn check_local_consensus_validity<Pk, Ctx>(
    ms: &Miniscript<Pk, Ctx>
) -> Result<(), ScriptContextError> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Consensus rules at the Miniscript satisfaction time. It is possible that some paths of miniscript may exceed resource limits and our current satisfier and lifting analysis would not work correctly. For example, satisfaction path(Legacy/Segwitv0) may require more than 201 opcodes.

pub fn check_local_policy_validity<Pk, Ctx>(
    ms: &Miniscript<Pk, Ctx>
) -> Result<(), ScriptContextError> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Policy rules at the Miniscript satisfaction time. It is possible that some paths of miniscript may exceed resource limits and our current satisfier and lifting analysis would not work correctly. For example, satisfaction path in Legacy context scriptSig more than 1650 bytes

pub fn max_satisfaction_size<Pk, Ctx>(ms: &Miniscript<Pk, Ctx>) -> Option<usize> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Depending on script context, the size of a satifaction witness may slightly differ.

fn check_global_policy_validity<Pk, Ctx>(
    _ms: &Miniscript<Pk, Ctx>
) -> Result<(), ScriptContextError> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Depending on script Context, some of the script resource limits may have been exceeded under the current bitcoin core policy rules These miniscripts would never be accepted by the Bitcoin network and hence it is safe to discard them. (unless explicitly disabled by non-standard flag) For example, in Segwit Context with MiniscriptKey as bitcoin::PublicKey scripts over 3600 bytes are invalid. Post Tapscript upgrade, this would have to consider other nodes. This does NOT recursively check the miniscript fragments.

fn check_global_validity<Pk, Ctx>(
    ms: &Miniscript<Pk, Ctx>
) -> Result<(), ScriptContextError> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Check the consensus + policy(if not disabled) rules that are not based satisfaction

fn check_local_validity<Pk, Ctx>(
    ms: &Miniscript<Pk, Ctx>
) -> Result<(), ScriptContextError> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Check the consensus + policy(if not disabled) rules including the ones for satisfaction

fn top_level_type_check<Pk, Ctx>(ms: &Miniscript<Pk, Ctx>) -> Result<(), Error> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Check whether the top-level is type B

fn other_top_level_checks<Pk, Ctx>(
    _ms: &Miniscript<Pk, Ctx>
) -> Result<(), Error> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Other top level checks that are context specific

fn top_level_checks<Pk, Ctx>(ms: &Miniscript<Pk, Ctx>) -> Result<(), Error> where
    Ctx: ScriptContext,
    Pk: MiniscriptKey, 

Check top level consensus rules.

impl Eq for Legacy

impl StructuralEq for Legacy

impl StructuralPartialEq for Legacy