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// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use super::{
AccountId, AllPalletsWithSystem, ParachainInfo, Runtime, RuntimeCall, RuntimeEvent,
RuntimeOrigin,
};
use frame_support::{
match_types, parameter_types,
traits::{Everything, Nothing},
weights::Weight,
};
use xcm::latest::prelude::*;
use xcm_builder::{
AllowExplicitUnpaidExecutionFrom, FixedWeightBounds, ParentAsSuperuser, ParentIsPreset,
SovereignSignedViaLocation,
};
parameter_types! {
pub const WestendLocation: MultiLocation = MultiLocation::parent();
pub const WestendNetwork: Option<NetworkId> = Some(NetworkId::Westend);
pub UniversalLocation: InteriorMultiLocation = X1(Parachain(ParachainInfo::parachain_id().into()));
}
/// This is the type we use to convert an (incoming) XCM origin into a local `Origin` instance,
/// ready for dispatching a transaction with Xcm's `Transact`. There is an `OriginKind` which can
/// bias the kind of local `Origin` it will become.
pub type XcmOriginToTransactDispatchOrigin = (
// Sovereign account converter; this attempts to derive an `AccountId` from the origin location
// using `LocationToAccountId` and then turn that into the usual `Signed` origin. Useful for
// foreign chains who want to have a local sovereign account on this chain which they control.
SovereignSignedViaLocation<ParentIsPreset<AccountId>, RuntimeOrigin>,
// Superuser converter for the Relay-chain (Parent) location. This will allow it to issue a
// transaction from the Root origin.
ParentAsSuperuser<RuntimeOrigin>,
);
match_types! {
pub type JustTheParent: impl Contains<MultiLocation> = { MultiLocation { parents:1, interior: Here } };
}
parameter_types! {
// One XCM operation is 1_000_000_000 weight - almost certainly a conservative estimate.
pub UnitWeightCost: Weight = Weight::from_parts(1_000_000_000, 64 * 1024);
pub const MaxInstructions: u32 = 100;
pub const MaxAssetsIntoHolding: u32 = 64;
}
pub struct XcmConfig;
impl xcm_executor::Config for XcmConfig {
type RuntimeCall = RuntimeCall;
type XcmSender = (); // sending XCM not supported
type AssetTransactor = (); // balances not supported
type OriginConverter = XcmOriginToTransactDispatchOrigin;
type IsReserve = (); // balances not supported
type IsTeleporter = (); // balances not supported
type UniversalLocation = UniversalLocation;
type Barrier = AllowExplicitUnpaidExecutionFrom<JustTheParent>;
type Weigher = FixedWeightBounds<UnitWeightCost, RuntimeCall, MaxInstructions>; // balances not supported
type Trader = (); // balances not supported
type ResponseHandler = (); // Don't handle responses for now.
type AssetTrap = (); // don't trap for now
type AssetClaims = (); // don't claim for now
type SubscriptionService = (); // don't handle subscriptions for now
type PalletInstancesInfo = AllPalletsWithSystem;
type MaxAssetsIntoHolding = MaxAssetsIntoHolding;
type AssetLocker = ();
type AssetExchanger = ();
type FeeManager = ();
type MessageExporter = ();
type UniversalAliases = Nothing;
type CallDispatcher = RuntimeCall;
type SafeCallFilter = Everything;
type Aliasers = Nothing;
}
impl cumulus_pallet_xcm::Config for Runtime {
type RuntimeEvent = RuntimeEvent;
type XcmExecutor = xcm_executor::XcmExecutor<XcmConfig>;
}