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pallet_xcm_bridge_hub

Struct BridgeLocations

pub struct BridgeLocations { /* private fields */ }
Expand description

Locations of bridge endpoints at both sides of the bridge.

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impl BridgeLocations

pub fn bridge_locations( here_universal_location: Junctions, bridge_origin_relative_location: Location, bridge_destination_universal_location: Junctions, expected_remote_network: NetworkId, ) -> Result<Box<BridgeLocations>, BridgeLocationsError>

Given XCM locations, generate lane id and universal locations of bridge endpoints.

The here_universal_location is the universal location of the bridge hub runtime.

The bridge_origin_relative_location is the relative (to the here_universal_location) location of the bridge endpoint at this side of the bridge. It may be the parent relay chain or the sibling parachain. All junctions below parachain level are dropped.

The bridge_destination_universal_location is the universal location of the bridge destination. It may be the parent relay or the sibling parachain of the bridged bridge hub. All junctions below parachain level are dropped.

Why we drop all junctions between parachain level - that’s because the lane is a bridge between two chains. All routing under this level happens when the message is delivered to the bridge destination. So at bridge level we don’t care about low level junctions.

Returns error if bridge_origin_relative_location is outside of here_universal_location local consensus OR if bridge_destination_universal_location is not a universal location.

pub fn bridge_origin_relative_location(&self) -> &Location

Getter for bridge_origin_relative_location

pub fn bridge_origin_universal_location(&self) -> &Junctions

Getter for bridge_origin_universal_location

pub fn bridge_destination_universal_location(&self) -> &Junctions

Getter for bridge_destination_universal_location

pub fn bridge_id(&self) -> &BridgeId

Getter for bridge_id

pub fn calculate_lane_id<LaneId>( &self, xcm_version: u32, ) -> Result<LaneId, BridgeLocationsError>
where LaneId: LaneIdType,

Generates the exact same LaneId on the both bridge hubs.

Note: Use this only when opening a new bridge.

Trait Implementations§

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impl Clone for BridgeLocations

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fn clone(&self) -> BridgeLocations

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BridgeLocations

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

Formats the value using the given formatter. Read more
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impl PartialEq for BridgeLocations

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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impl StructuralPartialEq for BridgeLocations

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