feat(coretime-westend-runtime): add aliasers

cumulus/parachains/runtimes/coretime/coretime-westend/src/lib.rs

@@ -1126,7 +1126,9 @@ impl_runtime_apis! {
 				}
 
 				fn alias_origin() -> Result<(Location, Location), BenchmarkError> {
-					Err(BenchmarkError::Skip)
+					let origin = Location::new(1, [Parachain(1000)]);
+					let target = Location::new(1, [Parachain(1000), AccountId32 { id: [128u8; 32], network: None }]);
+					Ok((origin, target))
 				}
 			}
 

cumulus/parachains/runtimes/coretime/coretime-westend/src/weights/xcm/mod.rs

@@ -261,8 +261,7 @@ impl<Call> XcmWeightInfo<Call> for CoretimeWestendXcmWeight<Call> {
 		XcmGeneric::<Runtime>::clear_topic()
 	}
 	fn alias_origin(_: &Location) -> Weight {
-		// XCM Executor does not currently support alias origin operations
-		Weight::MAX
+		XcmGeneric::<Runtime>::alias_origin()
 	}
 	fn unpaid_execution(_: &WeightLimit, _: &Option<Location>) -> Weight {
 		XcmGeneric::<Runtime>::unpaid_execution()

cumulus/parachains/runtimes/coretime/coretime-westend/src/weights/xcm/pallet_xcm_benchmarks_generic.rs

@@ -317,6 +317,13 @@ impl<T: frame_system::Config> WeightInfo<T> {
 		// Minimum execution time: 572_000 picoseconds.
 		Weight::from_parts(631_000, 0)
 	}
+	pub fn alias_origin() -> Weight {
+		// Proof Size summary in bytes:
+		//  Measured:  `0`
+		//  Estimated: `0`
+		// Minimum execution time: 2_000_000 picoseconds.
+		Weight::from_parts(2_000_000, 0)
+	}
 	pub fn set_fees_mode() -> Weight {
 		// Proof Size summary in bytes:
 		//  Measured:  `0`

cumulus/parachains/runtimes/coretime/coretime-westend/src/xcm_config.rs

@@ -47,13 +47,14 @@ use xcm_builder::{
 	SiblingParachainAsNative, SiblingParachainConvertsVia, SignedAccountId32AsNative,
 	SignedToAccountId32, SovereignSignedViaLocation, TakeWeightCredit, TrailingSetTopicAsId,
 	UsingComponents, WeightInfoBounds, WithComputedOrigin, WithUniqueTopic,
-	XcmFeeManagerFromComponents,
+	XcmFeeManagerFromComponents, AliasChildLocation, AliasOriginRootUsingFilter,
 };
 use xcm_executor::XcmExecutor;
 
 parameter_types! {
 	pub const RootLocation: Location = Location::here();
 	pub const TokenRelayLocation: Location = Location::parent();
+	pub AssetHubLocation: Location = Location::new(1, [Parachain(1000)]);
 	pub const RelayNetwork: Option<NetworkId> = Some(NetworkId::ByGenesis(WESTEND_GENESIS_HASH));
 	pub RelayChainOrigin: RuntimeOrigin = cumulus_pallet_xcm::Origin::Relay.into();
 	pub UniversalLocation: InteriorLocation =
@@ -191,6 +192,13 @@ pub type WaivedLocations = (
 	Equals<RelayTreasuryLocation>,
 );
 
+/// We allow locations to alias into their own child locations, as well as
+/// AssetHub to alias into anything.
+pub type Aliasers = (
+	AliasChildLocation,
+	AliasOriginRootUsingFilter<AssetHubLocation, Everything>,
+);
+
 pub struct XcmConfig;
 impl xcm_executor::Config for XcmConfig {
 	type RuntimeCall = RuntimeCall;
@@ -232,7 +240,7 @@ impl xcm_executor::Config for XcmConfig {
 	type UniversalAliases = Nothing;
 	type CallDispatcher = RuntimeCall;
 	type SafeCallFilter = Everything;
-	type Aliasers = Nothing;
+	type Aliasers = Aliasers;
 	type TransactionalProcessor = FrameTransactionalProcessor;
 	type HrmpNewChannelOpenRequestHandler = ();
 	type HrmpChannelAcceptedHandler = ();