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feat: implemente xcm burned adapter for relay token
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| use crate::Balance; | ||
| use core::marker::PhantomData; | ||
| use xcm::latest::prelude::{Asset, Location, XcmContext, XcmError, XcmResult}; | ||
| use xcm_executor::{ | ||
| traits::{MatchesFungible, TransactAsset}, | ||
| AssetsInHolding, | ||
| }; | ||
| pub struct BurnerAdapter<Matcher>(PhantomData<Matcher>); | ||
| impl<Matcher: MatchesFungible<Balance>> TransactAsset for BurnerAdapter<Matcher> { | ||
| fn can_check_in(_origin: &Location, what: &Asset, _context: &XcmContext) -> XcmResult { | ||
| log::trace!( | ||
| target: "xcm::burner_adapter", | ||
| "can_check_in origin: {:?}, what: {:?}", | ||
| _origin, what | ||
| ); | ||
| match Matcher::matches_fungible(what) { | ||
| Some(_) => Ok(()), | ||
| None => Err(XcmError::AssetNotFound), | ||
| } | ||
| } | ||
|
|
||
| fn check_in(_origin: &Location, _what: &Asset, _context: &XcmContext) { | ||
| // No-op | ||
| } | ||
|
|
||
| fn can_check_out(_dest: &Location, what: &Asset, _context: &XcmContext) -> XcmResult { | ||
| log::trace!( | ||
| target: "xcm::burner_adapter", | ||
| "can_check_out dest: {:?}, what: {:?}", | ||
| _dest, what | ||
| ); | ||
| match Matcher::matches_fungible(what) { | ||
| Some(_) => Err(XcmError::Unimplemented), | ||
| None => Err(XcmError::AssetNotFound), | ||
| } | ||
| } | ||
|
|
||
| fn check_out(_dest: &Location, _what: &Asset, _context: &XcmContext) { | ||
| // No-op | ||
| } | ||
|
|
||
| fn deposit_asset(what: &Asset, _who: &Location, _context: Option<&XcmContext>) -> XcmResult { | ||
| // Only accept and do nothing with the matched asset | ||
| log::trace!( | ||
| target: "xcm::burner_adapter", | ||
| "deposit_asset what: {:?}, who: {:?}", | ||
| what, _who, | ||
| ); | ||
| match Matcher::matches_fungible(what) { | ||
| Some(_) => Ok(()), | ||
| None => Err(XcmError::AssetNotFound), | ||
| } | ||
| } | ||
|
|
||
| fn withdraw_asset( | ||
| what: &Asset, | ||
| _who: &Location, | ||
| _maybe_context: Option<&XcmContext>, | ||
| ) -> Result<AssetsInHolding, XcmError> { | ||
| log::trace!( | ||
| target: "xcm::burner_adapter", | ||
| "withdraw_asset called with asset: {:?}, who: {:?}, context: {:?}", | ||
| what, _who, _maybe_context | ||
| ); | ||
| let matches = Matcher::matches_fungible(what); | ||
| match matches { | ||
| Some(_) => { | ||
| log::trace!( | ||
| target: "xcm::burner_adapter", | ||
| // Error propagrates as `AssetNotFound` in executor therefore the log. | ||
| "returning Unimplemented as we don't support withdrawals" | ||
| ); | ||
| Err(XcmError::Unimplemented) | ||
| }, | ||
| None => Err(XcmError::AssetNotFound), | ||
| } | ||
| } | ||
|
|
||
| fn internal_transfer_asset( | ||
| asset: &Asset, | ||
| _from: &Location, | ||
| _to: &Location, | ||
| _context: &XcmContext, | ||
| ) -> Result<AssetsInHolding, XcmError> { | ||
| log::trace!( | ||
| target: "xcm::burner_adapter", | ||
| "internal_transfer_asset asset: {:?}, from: {:?}, to: {:?}", | ||
| asset, _from, _to, | ||
| ); | ||
| match Matcher::matches_fungible(asset) { | ||
| Some(_) => Err(XcmError::Unimplemented), | ||
| None => Err(XcmError::AssetNotFound), | ||
| } | ||
| } | ||
| } |
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