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Update XCM MultiLocation prefixes for assets in Statemint #833

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Update XCM MultiLocation prefixes for assets in Statemint #833

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6 changes: 5 additions & 1 deletion polkadot-parachains/rococo-parachain/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -311,7 +311,7 @@ pub type FungiblesTransactor = FungiblesAdapter<
ConvertedConcreteAssetId<
AssetId,
u64,
AsPrefixedGeneralIndex<StatemintLocation, AssetId, JustTry>,
AsPrefixedGeneralIndex<StatemintAssetsPalletLocation, AssetId, JustTry>,
JustTry,
>,
// Convert an XCM MultiLocation into a local account id:
Expand Down Expand Up @@ -385,6 +385,10 @@ pub type Barrier = (

parameter_types! {
pub StatemintLocation: MultiLocation = MultiLocation::new(1, X1(Parachain(1000)));
// ALWAYS ensure that the index in PalletInstance stays up-to-date with
// Statemint's Assets pallet index
pub StatemintAssetsPalletLocation: MultiLocation =
MultiLocation::new(1, X2(Parachain(1000), PalletInstance(50)));
}

pub type Reserves = (NativeAsset, AssetsFrom<StatemintLocation>);
Expand Down
6 changes: 4 additions & 2 deletions polkadot-parachains/statemine/src/lib.rs
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Expand Up @@ -43,7 +43,7 @@ use codec::{Decode, Encode, MaxEncodedLen};
use constants::{currency::*, fee::WeightToFee};
use frame_support::{
construct_runtime, match_type, parameter_types,
traits::{Everything, InstanceFilter, Nothing},
traits::{Everything, InstanceFilter, Nothing, PalletInfoAccess},
weights::{
constants::{BlockExecutionWeight, ExtrinsicBaseWeight},
DispatchClass, IdentityFee, Weight,
Expand Down Expand Up @@ -432,6 +432,8 @@ parameter_types! {
pub RelayChainOrigin: Origin = cumulus_pallet_xcm::Origin::Relay.into();
pub Ancestry: MultiLocation = Parachain(ParachainInfo::parachain_id().into()).into();
pub const Local: MultiLocation = Here.into();
pub AssetsPalletLocation: MultiLocation =
PalletInstance(<Assets as PalletInfoAccess>::index() as u8).into();
pub CheckingAccount: AccountId = PolkadotXcm::check_account();
}

Expand Down Expand Up @@ -469,7 +471,7 @@ pub type FungiblesTransactor = FungiblesAdapter<
ConvertedConcreteAssetId<
AssetId,
Balance,
AsPrefixedGeneralIndex<Local, AssetId, JustTry>,
AsPrefixedGeneralIndex<AssetsPalletLocation, AssetId, JustTry>,
JustTry,
>,
// Convert an XCM MultiLocation into a local account id:
Expand Down
6 changes: 4 additions & 2 deletions polkadot-parachains/statemint/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,7 @@ use codec::{Decode, Encode, MaxEncodedLen};
use constants::{currency::*, fee::WeightToFee};
use frame_support::{
construct_runtime, match_type, parameter_types,
traits::{Contains, Everything, InstanceFilter, Nothing},
traits::{Contains, Everything, InstanceFilter, Nothing, PalletInfoAccess},
weights::{
constants::{BlockExecutionWeight, ExtrinsicBaseWeight},
DispatchClass, IdentityFee, Weight,
Expand Down Expand Up @@ -444,6 +444,8 @@ parameter_types! {
pub RelayChainOrigin: Origin = cumulus_pallet_xcm::Origin::Relay.into();
pub Ancestry: MultiLocation = Parachain(ParachainInfo::parachain_id().into()).into();
pub const Local: MultiLocation = Here.into();
pub AssetsPalletLocation: MultiLocation =
PalletInstance(<Assets as PalletInfoAccess>::index() as u8).into();
pub CheckingAccount: AccountId = PolkadotXcm::check_account();
}

Expand Down Expand Up @@ -481,7 +483,7 @@ pub type FungiblesTransactor = FungiblesAdapter<
ConvertedConcreteAssetId<
AssetId,
Balance,
AsPrefixedGeneralIndex<Local, AssetId, JustTry>,
AsPrefixedGeneralIndex<AssetsPalletLocation, AssetId, JustTry>,
JustTry,
>,
// Convert an XCM MultiLocation into a local account id:
Expand Down
6 changes: 4 additions & 2 deletions polkadot-parachains/westmint/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,7 @@ use codec::{Decode, Encode, MaxEncodedLen};
use constants::{currency::*, fee::WeightToFee};
use frame_support::{
construct_runtime, match_type, parameter_types,
traits::{Everything, InstanceFilter},
traits::{Everything, InstanceFilter, PalletInfoAccess},
weights::{
constants::{BlockExecutionWeight, ExtrinsicBaseWeight},
DispatchClass, IdentityFee, Weight,
Expand Down Expand Up @@ -426,6 +426,8 @@ parameter_types! {
pub RelayChainOrigin: Origin = cumulus_pallet_xcm::Origin::Relay.into();
pub Ancestry: MultiLocation = Parachain(ParachainInfo::parachain_id().into()).into();
pub const Local: MultiLocation = Here.into();
pub AssetsPalletLocation: MultiLocation =
PalletInstance(<Assets as PalletInfoAccess>::index() as u8).into();
pub CheckingAccount: AccountId = PolkadotXcm::check_account();
}

Expand Down Expand Up @@ -463,7 +465,7 @@ pub type FungiblesTransactor = FungiblesAdapter<
ConvertedConcreteAssetId<
AssetId,
Balance,
AsPrefixedGeneralIndex<Local, AssetId, JustTry>,
AsPrefixedGeneralIndex<AssetsPalletLocation, AssetId, JustTry>,
JustTry,
>,
// Convert an XCM MultiLocation into a local account id:
Expand Down