Enum cumulus_primitives_core::Junction

pub enum Junction {
    Parachain(u32),
    AccountId32 {
        network: Option<NetworkId>,
        id: [u8; 32],
    },
    AccountIndex64 {
        network: Option<NetworkId>,
        index: u64,
    },
    AccountKey20 {
        network: Option<NetworkId>,
        key: [u8; 20],
    },
    PalletInstance(u8),
    GeneralIndex(u128),
    GeneralKey {
        length: u8,
        data: [u8; 32],
    },
    OnlyChild,
    Plurality {
        id: BodyId,
        part: BodyPart,
    },
    GlobalConsensus(NetworkId),
}

A single item in a path to describe the relative location of a consensus system.

Each item assumes a pre-existing location as its context and is defined in terms of it.

Variants

Parachain(u32)

An indexed parachain belonging to and operated by the context.

Generally used when the context is a Polkadot Relay-chain.

AccountId32

Fields

network: Option<NetworkId>

id: [u8; 32]

A 32-byte identifier for an account of a specific network that is respected as a sovereign endpoint within the context.

Generally used when the context is a Substrate-based chain.

AccountIndex64

Fields

network: Option<NetworkId>

index: u64

An 8-byte index for an account of a specific network that is respected as a sovereign endpoint within the context.

May be used when the context is a Frame-based chain and includes e.g. an indices pallet.

AccountKey20

Fields

network: Option<NetworkId>

key: [u8; 20]

A 20-byte identifier for an account of a specific network that is respected as a sovereign endpoint within the context.

May be used when the context is an Ethereum or Bitcoin chain or smart-contract.

PalletInstance(u8)

An instanced, indexed pallet that forms a constituent part of the context.

Generally used when the context is a Frame-based chain.

GeneralIndex(u128)

A non-descript index within the context location.

Usage will vary widely owing to its generality.

NOTE: Try to avoid using this and instead use a more specific item.

GeneralKey

Fields

length: u8

data: [u8; 32]

A nondescript array datum, 32 bytes, acting as a key within the context location.

Usage will vary widely owing to its generality.

NOTE: Try to avoid using this and instead use a more specific item.

OnlyChild

The unambiguous child.

Not currently used except as a fallback when deriving context.

Plurality

Fields

id: BodyId

part: BodyPart

A pluralistic body existing within consensus.

Typical to be used to represent a governance origin of a chain, but could in principle be used to represent things such as multisigs also.

GlobalConsensus(NetworkId)

A global network capable of externalizing its own consensus. This is not generally meaningful outside of the universal level.

Implementations

impl Junction

pub fn into_location(self) -> Location

Convert self into a Location containing 0 parents.

Similar to Into::into, except that this method can be used in a const evaluation context.

pub fn into_exterior(self, n: u8) -> Location

Convert self into a Location containing n parents.

Similar to Self::into_location, with the added ability to specify the number of parent junctions.

pub fn into_versioned(self) -> VersionedLocation

Convert self into a VersionedLocation containing 0 parents.

Similar to Into::into, except that this method can be used in a const evaluation context.

pub fn remove_network_id(&mut self)

Remove the NetworkId value.

Trait Implementations

impl Clone for Junction

fn clone(&self) -> Junction

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Junction

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

Formats the value using the given formatter.

impl Decode for Junction

fn decode<__CodecInputEdqy>( __codec_input_edqy: &mut __CodecInputEdqy ) -> Result<Junction, Error>

where __CodecInputEdqy: Input,

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self> ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<'de> Deserialize<'de> for Junction

fn deserialize<__D>( __deserializer: __D ) -> Result<Junction, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Encode for Junction

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy )

where __CodecOutputEdqy: Output + ?Sized,

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl From<[u8; 20]> for Junction

fn from(key: [u8; 20]) -> Junction

Converts to this type from the input type.

impl From<[u8; 32]> for Junction

fn from(id: [u8; 32]) -> Junction

Converts to this type from the input type.

impl<'a> From<BoundedSlice<'a, u8, ConstU32<32>>> for Junction

fn from(key: BoundedSlice<'a, u8, ConstU32<32>>) -> Junction

Converts to this type from the input type.

impl From<BoundedVec<u8, ConstU32<32>>> for Junction

fn from(key: BoundedVec<u8, ConstU32<32>>) -> Junction

Converts to this type from the input type.

impl From<Junction> for Location

fn from(x: Junction) -> Location

Converts to this type from the input type.

impl From<NetworkId> for Junction

fn from(n: NetworkId) -> Junction

Converts to this type from the input type.

impl From<u128> for Junction

fn from(id: u128) -> Junction

Converts to this type from the input type.

impl From<u64> for Junction

fn from(index: u64) -> Junction

Converts to this type from the input type.

impl MaxEncodedLen for Junction

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl Ord for Junction

fn cmp(&self, other: &Junction) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Junction

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

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

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

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

impl PartialOrd for Junction

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

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

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

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

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

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

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

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

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 Serialize for Junction

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 TryFrom<Junction> for Junction

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: Junction) -> Result<Junction, ()>

Performs the conversion.

impl TryFrom<VersionedJunction> for Junction

type Error = ()

The type returned in the event of a conversion error.

fn try_from(x: VersionedJunction) -> Result<Junction, ()>

Performs the conversion.

impl TypeInfo for Junction

type Identity = Junction

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl Copy for Junction

impl EncodeLike for Junction

impl Eq for Junction

impl StructuralPartialEq for Junction