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add FeeManager to pallet xcm #5363

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merged 16 commits into from
Nov 11, 2024
Merged

add FeeManager to pallet xcm #5363

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a5fe494
add FeeManager to pallet xcm
jpserrat Aug 14, 2024
03f521e
remove unused import
jpserrat Aug 14, 2024
e8cba6e
fix fmt
jpserrat Aug 14, 2024
be37848
remove unused import
jpserrat Aug 14, 2024
c7b575a
refactor: impl FeeManager trait to XcmExecutor
jpserrat Aug 30, 2024
28ffa84
Merge branch 'master' of github.com:paritytech/polkadot-sdk into jpse…
jpserrat Aug 30, 2024
1cddea5
Merge branch 'master' of github.com:paritytech/polkadot-sdk into jpse…
jpserrat Aug 30, 2024
43da487
add root location to waived locations
jpserrat Nov 10, 2024
a08783e
return send_xcm to insert DecendOrigin to message when interior != Ju…
jpserrat Nov 10, 2024
74506e5
add prdoc for waive transport fees based on XcmConfig
jpserrat Nov 10, 2024
f5b6334
Merge branch 'master' of github.com:paritytech/polkadot-sdk into jpse…
jpserrat Nov 10, 2024
79ad2c6
fix send_xcm charge fees condition
jpserrat Nov 10, 2024
6762b4e
Update polkadot/xcm/pallet-xcm/src/lib.rs
acatangiu Nov 11, 2024
ddf5ac3
Merge branch 'master' into jpserrat/use-is-waived-on-send-xcm
acatangiu Nov 11, 2024
fbea24e
Update from acatangiu running command 'fmt'
actions-user Nov 11, 2024
94aa5c3
Merge branch 'master' into jpserrat/use-is-waived-on-send-xcm
acatangiu Nov 11, 2024
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1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/assets/asset-hub-rococo/src/xcm_config.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -485,6 +485,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/assets/asset-hub-westend/src/xcm_config.rs
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Expand Up @@ -509,6 +509,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/xcm_config.rs
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Expand Up @@ -287,6 +287,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/xcm_config.rs
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Expand Up @@ -273,6 +273,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/collectives/collectives-westend/src/xcm_config.rs
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Expand Up @@ -273,6 +273,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/contracts/contracts-rococo/src/xcm_config.rs
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Expand Up @@ -249,6 +249,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/coretime/coretime-rococo/src/xcm_config.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -273,6 +273,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/coretime/coretime-westend/src/xcm_config.rs
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Expand Up @@ -281,6 +281,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
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1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/people/people-rococo/src/xcm_config.rs
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Expand Up @@ -276,6 +276,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
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1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/people/people-westend/src/xcm_config.rs
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Expand Up @@ -284,6 +284,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
9 changes: 8 additions & 1 deletion cumulus/parachains/runtimes/testing/penpal/src/xcm_config.rs
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Expand Up @@ -316,6 +316,12 @@ pub type TrustedReserves = (
pub type TrustedTeleporters =
(AssetFromChain<LocalTeleportableToAssetHub, SystemAssetHubLocation>,);

pub struct WaivedLocations;
impl Contains<Location> for WaivedLocations {
fn contains(location: &Location) -> bool {
*location == Location::here()
}
}
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There is already something you can use here:

Suggested change
pub struct WaivedLocations;
impl Contains<Location> for WaivedLocations {
fn contains(location: &Location) -> bool {
*location == Location::here()
}
}
pub type WaivedLocations = Equals<RootLocation>;

Also please make sure all the other system chain runtimes have Equals<RootLocation> part of their WaivedLocations so as not to break functionality.

Hint: they currently do not, for example collectives-westend has it, make sure the others do too.

pub struct XcmConfig;
impl xcm_executor::Config for XcmConfig {
type RuntimeCall = RuntimeCall;
Expand Down Expand Up @@ -354,7 +360,7 @@ impl xcm_executor::Config for XcmConfig {
type AssetLocker = ();
type AssetExchanger = ();
type FeeManager = XcmFeeManagerFromComponents<
(),
WaivedLocations,
SendXcmFeeToAccount<Self::AssetTransactor, TreasuryAccount>,
>;
type MessageExporter = ();
Expand Down Expand Up @@ -419,6 +425,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
1 change: 1 addition & 0 deletions cumulus/parachains/runtimes/testing/rococo-parachain/src/lib.rs
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Expand Up @@ -531,6 +531,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
1 change: 1 addition & 0 deletions polkadot/runtime/rococo/src/xcm_config.rs
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Expand Up @@ -287,4 +287,5 @@ impl pallet_xcm::Config for Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = crate::weights::pallet_xcm::WeightInfo<Runtime>;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}
1 change: 1 addition & 0 deletions polkadot/runtime/test-runtime/src/xcm_config.rs
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Expand Up @@ -185,4 +185,5 @@ impl pallet_xcm::Config for crate::Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = pallet_xcm::TestWeightInfo;
type AdminOrigin = EnsureRoot<crate::AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}
1 change: 1 addition & 0 deletions polkadot/runtime/westend/src/xcm_config.rs
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Expand Up @@ -301,4 +301,5 @@ impl pallet_xcm::Config for Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = crate::weights::pallet_xcm::WeightInfo<Runtime>;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}
3 changes: 2 additions & 1 deletion polkadot/xcm/docs/src/cookbook/relay_token_transactor/parachain/xcm_config.rs
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Expand Up @@ -152,7 +152,7 @@ impl pallet_xcm::Config for Runtime {
// We turn off sending for these tests
type SendXcmOrigin = EnsureXcmOrigin<RuntimeOrigin, ()>;
type XcmRouter = super::super::network::ParachainXcmRouter<MessageQueue>; // Provided by xcm-simulator
// Anyone can execute XCM programs
// Anyone can execute XCM programs
type ExecuteXcmOrigin = EnsureXcmOrigin<RuntimeOrigin, LocalOriginToLocation>;
// We execute any type of program
type XcmExecuteFilter = Everything;
Expand Down Expand Up @@ -186,4 +186,5 @@ impl pallet_xcm::Config for Runtime {
type RuntimeOrigin = RuntimeOrigin;
type RuntimeCall = RuntimeCall;
type RuntimeEvent = RuntimeEvent;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}
3 changes: 2 additions & 1 deletion polkadot/xcm/docs/src/cookbook/relay_token_transactor/relay_chain/xcm_config.rs
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Expand Up @@ -125,7 +125,7 @@ impl pallet_xcm::Config for Runtime {
// No one can call `send`
type SendXcmOrigin = EnsureXcmOrigin<RuntimeOrigin, ()>;
type XcmRouter = super::super::network::RelayChainXcmRouter; // Provided by xcm-simulator
// Anyone can execute XCM programs
// Anyone can execute XCM programs
type ExecuteXcmOrigin = EnsureXcmOrigin<RuntimeOrigin, LocalOriginToLocation>;
// We execute any type of program
type XcmExecuteFilter = Everything;
Expand Down Expand Up @@ -160,4 +160,5 @@ impl pallet_xcm::Config for Runtime {
type RuntimeOrigin = RuntimeOrigin;
type RuntimeCall = RuntimeCall;
type RuntimeEvent = RuntimeEvent;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}
26 changes: 14 additions & 12 deletions polkadot/xcm/pallet-xcm/src/lib.rs
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Expand Up @@ -61,9 +61,9 @@ use xcm_builder::{
use xcm_executor::{
traits::{
AssetTransferError, CheckSuspension, ClaimAssets, ConvertLocation, ConvertOrigin,
DropAssets, MatchesFungible, OnResponse, Properties, QueryHandler, QueryResponseStatus,
RecordXcm, TransactAsset, TransferType, VersionChangeNotifier, WeightBounds,
XcmAssetTransfers,
DropAssets, FeeManager, FeeReason, MatchesFungible, OnResponse, Properties, QueryHandler,
QueryResponseStatus, RecordXcm, TransactAsset, TransferType, VersionChangeNotifier,
WeightBounds, XcmAssetTransfers,
},
AssetsInHolding,
};
Expand Down Expand Up @@ -192,7 +192,7 @@ pub mod pallet {
use frame_system::Config as SysConfig;
use sp_core::H256;
use sp_runtime::traits::Dispatchable;
use xcm_executor::traits::{MatchesFungible, WeightBounds};
use xcm_executor::traits::{FeeManager, MatchesFungible, WeightBounds};

parameter_types! {
/// An implementation of `Get<u32>` which just returns the latest XCM version which we can
Expand Down Expand Up @@ -292,6 +292,9 @@ pub mod pallet {

/// Weight information for extrinsics in this pallet.
type WeightInfo: WeightInfo;

/// Configure the fees.
type FeeManager: FeeManager;
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I am in favor of re-exposing FeeManager from XcmExecutor type instead of creating yet another configuration type here.

I don't see why pallet-xcm would be configured with fee manager different than the xcm-executor. The benefit outweighs the overhead cost of configuring it twice and thus also the risk of misconfiguring it.

type XcmExecutor here can take a trait FeeManager bound.

xcm-executor implementation can impl FeeManager where it would simply re-expose its inner configured type FeeManager.

This will help with ergonomics and allow most runtimes to ingest this change with no breakages and needs to adjust configs.

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Done!

}

impl<T: Config> ExecuteControllerWeightInfo for Pallet<T> {
Expand Down Expand Up @@ -2421,17 +2424,16 @@ impl<T: Config> Pallet<T> {
mut message: Xcm<()>,
) -> Result<XcmHash, SendError> {
let interior = interior.into();
let origin_dest = interior.clone().into();
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This is the origin as seen by the local chain, relative to Here.

Suggested change
let origin_dest = interior.clone().into();
let local_origin = interior.clone().into();

let dest = dest.into();
let maybe_fee_payer = if interior != Junctions::Here {
message.0.insert(0, DescendOrigin(interior.clone()));
Some(interior.into())
} else {
None
};
let is_waived = T::FeeManager::is_waived(Some(&origin_dest), FeeReason::ChargeFees);
if !is_waived {
message.0.insert(0, DescendOrigin(interior));
}
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This is not really what we want.

Whether or not DescendOrigin(interior) is inserted is orthogonal to whether fees are paid; it should depend on the same condition as before:

Suggested change
if !is_waived {
message.0.insert(0, DescendOrigin(interior));
}
if interior != Junctions::Here {
message.0.insert(0, DescendOrigin(interior));
}

log::debug!(target: "xcm::send_xcm", "dest: {:?}, message: {:?}", &dest, &message);
let (ticket, price) = validate_send::<T::XcmRouter>(dest, message)?;
if let Some(fee_payer) = maybe_fee_payer {
Self::charge_fees(fee_payer, price).map_err(|_| SendError::Fees)?;
if !is_waived {
Self::charge_fees(origin_dest, price).map_err(|_| SendError::Fees)?;
}
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This condition is good! 👍

Just rename the var

Suggested change
if !is_waived {
Self::charge_fees(origin_dest, price).map_err(|_| SendError::Fees)?;
}
if !is_waived {
Self::charge_fees(local_origin, price).map_err(|_| SendError::Fees)?;
}

T::XcmRouter::deliver(ticket)
}
Expand Down
1 change: 1 addition & 0 deletions polkadot/xcm/pallet-xcm/src/mock.rs
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Expand Up @@ -556,6 +556,7 @@ impl pallet_xcm::Config for Test {
type MaxRemoteLockConsumers = frame_support::traits::ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type WeightInfo = TestWeightInfo;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl origin::Config for Test {}
Expand Down
1 change: 1 addition & 0 deletions polkadot/xcm/xcm-builder/src/asset_exchange/single_asset_adapter/mock.rs
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Expand Up @@ -330,6 +330,7 @@ impl pallet_xcm::Config for Runtime {
type RuntimeOrigin = RuntimeOrigin;
type RuntimeCall = RuntimeCall;
type RuntimeEvent = RuntimeEvent;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

pub const INITIAL_BALANCE: Balance = 1_000_000_000;
Expand Down
1 change: 1 addition & 0 deletions polkadot/xcm/xcm-builder/src/tests/pay/mock.rs
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Expand Up @@ -268,6 +268,7 @@ impl pallet_xcm::Config for Test {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = pallet_xcm::TestWeightInfo;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

pub const UNITS: Balance = 1_000_000_000_000;
Expand Down
1 change: 1 addition & 0 deletions polkadot/xcm/xcm-builder/tests/mock/mod.rs
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Expand Up @@ -224,6 +224,7 @@ impl pallet_xcm::Config for Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = pallet_xcm::TestWeightInfo;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl origin::Config for Runtime {}
Expand Down
1 change: 1 addition & 0 deletions polkadot/xcm/xcm-runtime-apis/tests/mock.rs
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Expand Up @@ -351,6 +351,7 @@ impl pallet_xcm::Config for TestRuntime {
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type WeightInfo = TestWeightInfo;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

#[allow(dead_code)]
Expand Down
1 change: 1 addition & 0 deletions polkadot/xcm/xcm-simulator/example/src/parachain/mod.rs
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Expand Up @@ -166,6 +166,7 @@ impl pallet_xcm::Config for Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = pallet_xcm::TestWeightInfo;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

type Block = frame_system::mocking::MockBlock<Runtime>;
Expand Down
1 change: 1 addition & 0 deletions polkadot/xcm/xcm-simulator/example/src/relay_chain/mod.rs
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Expand Up @@ -119,6 +119,7 @@ impl pallet_xcm::Config for Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = pallet_xcm::TestWeightInfo;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl origin::Config for Runtime {}
Expand Down
1 change: 1 addition & 0 deletions polkadot/xcm/xcm-simulator/fuzzer/src/parachain.rs
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Expand Up @@ -334,6 +334,7 @@ impl pallet_xcm::Config for Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = pallet_xcm::TestWeightInfo;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

construct_runtime!(
Expand Down
1 change: 1 addition & 0 deletions polkadot/xcm/xcm-simulator/fuzzer/src/relay_chain.rs
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Expand Up @@ -179,6 +179,7 @@ impl pallet_xcm::Config for Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = pallet_xcm::TestWeightInfo;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl origin::Config for Runtime {}
Expand Down
1 change: 1 addition & 0 deletions substrate/frame/contracts/mock-network/src/parachain.rs
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Expand Up @@ -321,6 +321,7 @@ impl pallet_xcm::Config for Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = pallet_xcm::TestWeightInfo;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

type Block = frame_system::mocking::MockBlock<Runtime>;
Expand Down
1 change: 1 addition & 0 deletions substrate/frame/contracts/mock-network/src/relay_chain.rs
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Expand Up @@ -209,6 +209,7 @@ impl pallet_xcm::Config for Runtime {
type RemoteLockConsumerIdentifier = ();
type WeightInfo = pallet_xcm::TestWeightInfo;
type AdminOrigin = EnsureRoot<AccountId>;
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl origin::Config for Runtime {}
Expand Down
1 change: 1 addition & 0 deletions templates/parachain/runtime/src/configs/xcm_config.rs
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Expand Up @@ -185,6 +185,7 @@ impl pallet_xcm::Config for Runtime {
type AdminOrigin = EnsureRoot<AccountId>;
type MaxRemoteLockConsumers = ConstU32<0>;
type RemoteLockConsumerIdentifier = ();
type FeeManager = <XcmConfig as xcm_executor::Config>::FeeManager;
}

impl cumulus_pallet_xcm::Config for Runtime {
Expand Down
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