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Dispatchable XCMs should translate to v0 (#4062)

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* Dispatchable XCMs should translate to v0

* Formatting

* Update Westend's XCM WrapVersion
This commit is contained in:
Gavin Wood
2021-10-12 15:35:10 +02:00
committed by GitHub
parent 67032af69f
commit 533cdb6e7c
6 changed files with 54 additions and 21 deletions
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polkadot/xcm/pallet-xcm/src/lib.rs
+27 -16
View File
@@ -526,16 +526,21 @@ pub mod pallet {
.map_err(|_| Error::<T>::CannotReanchor)?;
let max_assets = assets.len() as u32;
let assets = assets.into();
let mut remote_message = Xcm(vec![
BuyExecution { fees, weight_limit: Limited(0) },
DepositAsset { assets: Wild(All), max_assets, beneficiary },
]);
// use local weight for remote message and hope for the best.
let remote_weight = T::Weigher::weight(&mut remote_message)
.map_err(|()| Error::<T>::UnweighableMessage)?;
if let Some(BuyExecution { weight_limit: Limited(ref mut limit), .. }) =
remote_message.0.get_mut(0)
{
*limit = remote_weight;
}
let mut message = Xcm(vec![
WithdrawAsset(assets),
InitiateTeleport {
assets: Wild(All),
dest,
xcm: Xcm(vec![
BuyExecution { fees, weight_limit: Unlimited },
DepositAsset { assets: Wild(All), max_assets, beneficiary },
]),
},
InitiateTeleport { assets: Wild(All), dest, xcm: remote_message.into() },
]);
let weight =
T::Weigher::weight(&mut message).map_err(|()| Error::<T>::UnweighableMessage)?;
@@ -597,14 +602,20 @@ pub mod pallet {
.map_err(|_| Error::<T>::CannotReanchor)?;
let max_assets = assets.len() as u32;
let assets = assets.into();
let mut message = Xcm(vec![TransferReserveAsset {
assets,
dest,
xcm: Xcm(vec![
BuyExecution { fees, weight_limit: Unlimited },
DepositAsset { assets: Wild(All), max_assets, beneficiary },
]),
}]);
let mut remote_message = Xcm(vec![
BuyExecution { fees, weight_limit: Limited(0) },
DepositAsset { assets: Wild(All), max_assets, beneficiary },
]);
// use local weight for remote message and hope for the best.
let remote_weight = T::Weigher::weight(&mut remote_message)
.map_err(|()| Error::<T>::UnweighableMessage)?;
if let Some(BuyExecution { weight_limit: Limited(ref mut limit), .. }) =
remote_message.0.get_mut(0)
{
*limit = remote_weight;
}
let mut message =
Xcm(vec![TransferReserveAsset { assets, dest, xcm: remote_message.into() }]);
let weight =
T::Weigher::weight(&mut message).map_err(|()| Error::<T>::UnweighableMessage)?;
let outcome =