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Struct staging_xcm_builder::UnpaidRemoteExporter

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pub struct UnpaidRemoteExporter<Bridges, Router, UniversalLocation>(/* private fields */);
Expand description

Implementation of SendXcm which wraps the message inside an ExportMessage instruction and sends it to a destination known to be able to handle it.

No effort is made to make payment to the bridge for its services, so the bridge location must have been configured with a barrier rule allowing unpaid execution for this message coming from our origin.

This is only useful if we have special dispensation by the remote bridges to have the ExportMessage instruction executed without payment.

The XcmHash value returned by deliver will always be the same as that returned by the message exporter (Bridges). Generally this should take notice of the message should it end with the SetTopic instruction.

In the case that the message ends with a SetTopic(T) (as should be the case if the top-level router is WithUniqueTopic), then the forwarding message (i.e. the one carrying the export instruction to the bridge in local consensus) will also end with a SetTopic whose inner is forward_id_for(T). If this is not the case then the onward message will not be given the SetTopic afterword.

Trait Implementations§

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impl<Bridges: ExporterFor, Router: SendXcm, UniversalLocation: Get<InteriorLocation>> SendXcm for UnpaidRemoteExporter<Bridges, Router, UniversalLocation>

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type Ticket = <Router as SendXcm>::Ticket

Intermediate value which connects the two phases of the send operation.
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fn validate( dest: &mut Option<Location>, msg: &mut Option<Xcm<()>>, ) -> SendResult<Router::Ticket>

Check whether the given _message is deliverable to the given _destination and if so determine the cost which will be paid by this chain to do so, returning a Validated token which can be used to enact delivery. Read more
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fn deliver(validation: Self::Ticket) -> Result<XcmHash, SendError>

Actually carry out the delivery operation for a previously validated message sending.

Auto Trait Implementations§

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impl<Bridges, Router, UniversalLocation> Freeze for UnpaidRemoteExporter<Bridges, Router, UniversalLocation>

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impl<Bridges, Router, UniversalLocation> RefUnwindSafe for UnpaidRemoteExporter<Bridges, Router, UniversalLocation>
where Bridges: RefUnwindSafe, Router: RefUnwindSafe, UniversalLocation: RefUnwindSafe,

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impl<Bridges, Router, UniversalLocation> Send for UnpaidRemoteExporter<Bridges, Router, UniversalLocation>
where Bridges: Send, Router: Send, UniversalLocation: Send,

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impl<Bridges, Router, UniversalLocation> Sync for UnpaidRemoteExporter<Bridges, Router, UniversalLocation>
where Bridges: Sync, Router: Sync, UniversalLocation: Sync,

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impl<Bridges, Router, UniversalLocation> Unpin for UnpaidRemoteExporter<Bridges, Router, UniversalLocation>
where Bridges: Unpin, Router: Unpin, UniversalLocation: Unpin,

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impl<Bridges, Router, UniversalLocation> UnwindSafe for UnpaidRemoteExporter<Bridges, Router, UniversalLocation>
where Bridges: UnwindSafe, Router: UnwindSafe, UniversalLocation: UnwindSafe,

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