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Add claim_assets extrinsic to pallet-xcm (#3403)
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If an XCM execution fails or ends with leftover assets, these will be
trapped.
In order to claim them, a custom XCM has to be executed, with the
`ClaimAsset` instruction.
However, arbitrary XCM execution is not allowed everywhere yet and XCM
itself is still not easy enough to use for users out there with trapped
assets.
This new extrinsic in `pallet-xcm` will allow these users to easily
claim their assets, without concerning themselves with writing arbitrary
XCMs.

Part of fixing #3495

---------

Co-authored-by: command-bot <>
Co-authored-by: Adrian Catangiu <adrian@parity.io>
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@franciscoaguirre @acatangiu
franciscoaguirre and acatangiu committed Mar 1, 2024
1 parent 0fa7f6f commit 859179f
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Showing 29 changed files with 1,549 additions and 1,088 deletions.
7 changes: 7 additions & 0 deletions cumulus/parachains/runtimes/assets/asset-hub-rococo/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1475,6 +1475,13 @@ impl_runtime_apis! {
});
Some((assets, fee_index as u32, dest, verify))
}

fn get_asset() -> Asset {
Asset {
id: AssetId(Location::parent()),
fun: Fungible(ExistentialDeposit::get()),
}
}
}

impl XcmBridgeHubRouterConfig<ToWestendXcmRouterInstance> for Runtime {
Expand Down
146 changes: 79 additions & 67 deletions cumulus/parachains/runtimes/assets/asset-hub-rococo/src/weights/pallet_xcm.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,10 +16,10 @@

//! Autogenerated weights for `pallet_xcm`
//!
//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
//! DATE: 2023-12-05, STEPS: `50`, REPEAT: `20`, LOW RANGE: `[]`, HIGH RANGE: `[]`
//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 32.0.0
//! DATE: 2024-02-20, STEPS: `50`, REPEAT: `20`, LOW RANGE: `[]`, HIGH RANGE: `[]`
//! WORST CASE MAP SIZE: `1000000`
//! HOSTNAME: `runner-r43aesjn-project-674-concurrent-0`, CPU: `Intel(R) Xeon(R) CPU @ 2.60GHz`
//! HOSTNAME: `runner-bn-ce5rx-project-674-concurrent-0`, CPU: `Intel(R) Xeon(R) CPU @ 2.60GHz`
//! WASM-EXECUTION: `Compiled`, CHAIN: `Some("asset-hub-rococo-dev")`, DB CACHE: 1024

// Executed Command:
Expand Down Expand Up @@ -64,8 +64,8 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `145`
// Estimated: `3610`
// Minimum execution time: 25_003_000 picoseconds.
Weight::from_parts(25_800_000, 0)
// Minimum execution time: 22_136_000 picoseconds.
Weight::from_parts(22_518_000, 0)
.saturating_add(Weight::from_parts(0, 3610))
.saturating_add(T::DbWeight::get().reads(6))
.saturating_add(T::DbWeight::get().writes(2))
Expand All @@ -90,8 +90,8 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `145`
// Estimated: `3610`
// Minimum execution time: 88_832_000 picoseconds.
Weight::from_parts(90_491_000, 0)
// Minimum execution time: 92_277_000 picoseconds.
Weight::from_parts(94_843_000, 0)
.saturating_add(Weight::from_parts(0, 3610))
.saturating_add(T::DbWeight::get().reads(8))
.saturating_add(T::DbWeight::get().writes(3))
Expand All @@ -118,8 +118,8 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `400`
// Estimated: `6196`
// Minimum execution time: 138_911_000 picoseconds.
Weight::from_parts(142_483_000, 0)
// Minimum execution time: 120_110_000 picoseconds.
Weight::from_parts(122_968_000, 0)
.saturating_add(Weight::from_parts(0, 6196))
.saturating_add(T::DbWeight::get().reads(9))
.saturating_add(T::DbWeight::get().writes(5))
Expand Down Expand Up @@ -148,8 +148,8 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `496`
// Estimated: `6208`
// Minimum execution time: 146_932_000 picoseconds.
Weight::from_parts(153_200_000, 0)
// Minimum execution time: 143_116_000 picoseconds.
Weight::from_parts(147_355_000, 0)
.saturating_add(Weight::from_parts(0, 6208))
.saturating_add(T::DbWeight::get().reads(12))
.saturating_add(T::DbWeight::get().writes(7))
Expand All @@ -170,8 +170,8 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `0`
// Estimated: `0`
// Minimum execution time: 7_081_000 picoseconds.
Weight::from_parts(7_397_000, 0)
// Minimum execution time: 6_517_000 picoseconds.
Weight::from_parts(6_756_000, 0)
.saturating_add(Weight::from_parts(0, 0))
.saturating_add(T::DbWeight::get().writes(1))
}
Expand All @@ -181,8 +181,8 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `0`
// Estimated: `0`
// Minimum execution time: 2_007_000 picoseconds.
Weight::from_parts(2_183_000, 0)
// Minimum execution time: 1_894_000 picoseconds.
Weight::from_parts(2_024_000, 0)
.saturating_add(Weight::from_parts(0, 0))
.saturating_add(T::DbWeight::get().writes(1))
}
Expand All @@ -208,8 +208,8 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `145`
// Estimated: `3610`
// Minimum execution time: 28_790_000 picoseconds.
Weight::from_parts(29_767_000, 0)
// Minimum execution time: 27_314_000 picoseconds.
Weight::from_parts(28_787_000, 0)
.saturating_add(Weight::from_parts(0, 3610))
.saturating_add(T::DbWeight::get().reads(8))
.saturating_add(T::DbWeight::get().writes(5))
Expand All @@ -234,8 +234,8 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `363`
// Estimated: `3828`
// Minimum execution time: 30_951_000 picoseconds.
Weight::from_parts(31_804_000, 0)
// Minimum execution time: 29_840_000 picoseconds.
Weight::from_parts(30_589_000, 0)
.saturating_add(Weight::from_parts(0, 3828))
.saturating_add(T::DbWeight::get().reads(7))
.saturating_add(T::DbWeight::get().writes(4))
Expand All @@ -246,45 +246,45 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `0`
// Estimated: `0`
// Minimum execution time: 2_164_000 picoseconds.
Weight::from_parts(2_311_000, 0)
// Minimum execution time: 1_893_000 picoseconds.
Weight::from_parts(2_017_000, 0)
.saturating_add(Weight::from_parts(0, 0))
.saturating_add(T::DbWeight::get().writes(1))
}
/// Storage: `PolkadotXcm::SupportedVersion` (r:4 w:2)
/// Storage: `PolkadotXcm::SupportedVersion` (r:5 w:2)
/// Proof: `PolkadotXcm::SupportedVersion` (`max_values`: None, `max_size`: None, mode: `Measured`)
fn migrate_supported_version() -> Weight {
// Proof Size summary in bytes:
// Measured: `162`
// Estimated: `11052`
// Minimum execution time: 16_906_000 picoseconds.
Weight::from_parts(17_612_000, 0)
.saturating_add(Weight::from_parts(0, 11052))
.saturating_add(T::DbWeight::get().reads(4))
// Measured: `159`
// Estimated: `13524`
// Minimum execution time: 19_211_000 picoseconds.
Weight::from_parts(19_552_000, 0)
.saturating_add(Weight::from_parts(0, 13524))
.saturating_add(T::DbWeight::get().reads(5))
.saturating_add(T::DbWeight::get().writes(2))
}
/// Storage: `PolkadotXcm::VersionNotifiers` (r:4 w:2)
/// Storage: `PolkadotXcm::VersionNotifiers` (r:5 w:2)
/// Proof: `PolkadotXcm::VersionNotifiers` (`max_values`: None, `max_size`: None, mode: `Measured`)
fn migrate_version_notifiers() -> Weight {
// Proof Size summary in bytes:
// Measured: `166`
// Estimated: `11056`
// Minimum execution time: 17_443_000 picoseconds.
Weight::from_parts(18_032_000, 0)
.saturating_add(Weight::from_parts(0, 11056))
.saturating_add(T::DbWeight::get().reads(4))
// Measured: `163`
// Estimated: `13528`
// Minimum execution time: 19_177_000 picoseconds.
Weight::from_parts(19_704_000, 0)
.saturating_add(Weight::from_parts(0, 13528))
.saturating_add(T::DbWeight::get().reads(5))
.saturating_add(T::DbWeight::get().writes(2))
}
/// Storage: `PolkadotXcm::VersionNotifyTargets` (r:5 w:0)
/// Storage: `PolkadotXcm::VersionNotifyTargets` (r:6 w:0)
/// Proof: `PolkadotXcm::VersionNotifyTargets` (`max_values`: None, `max_size`: None, mode: `Measured`)
fn already_notified_target() -> Weight {
// Proof Size summary in bytes:
// Measured: `173`
// Estimated: `13538`
// Minimum execution time: 18_992_000 picoseconds.
Weight::from_parts(19_464_000, 0)
.saturating_add(Weight::from_parts(0, 13538))
.saturating_add(T::DbWeight::get().reads(5))
// Estimated: `16013`
// Minimum execution time: 20_449_000 picoseconds.
Weight::from_parts(21_075_000, 0)
.saturating_add(Weight::from_parts(0, 16013))
.saturating_add(T::DbWeight::get().reads(6))
}
/// Storage: `PolkadotXcm::VersionNotifyTargets` (r:2 w:1)
/// Proof: `PolkadotXcm::VersionNotifyTargets` (`max_values`: None, `max_size`: None, mode: `Measured`)
Expand All @@ -304,36 +304,36 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `212`
// Estimated: `6152`
// Minimum execution time: 28_011_000 picoseconds.
Weight::from_parts(28_716_000, 0)
// Minimum execution time: 26_578_000 picoseconds.
Weight::from_parts(27_545_000, 0)
.saturating_add(Weight::from_parts(0, 6152))
.saturating_add(T::DbWeight::get().reads(8))
.saturating_add(T::DbWeight::get().writes(3))
}
/// Storage: `PolkadotXcm::VersionNotifyTargets` (r:3 w:0)
/// Storage: `PolkadotXcm::VersionNotifyTargets` (r:4 w:0)
/// Proof: `PolkadotXcm::VersionNotifyTargets` (`max_values`: None, `max_size`: None, mode: `Measured`)
fn notify_target_migration_fail() -> Weight {
// Proof Size summary in bytes:
// Measured: `206`
// Estimated: `8621`
// Minimum execution time: 9_533_000 picoseconds.
Weight::from_parts(9_856_000, 0)
.saturating_add(Weight::from_parts(0, 8621))
.saturating_add(T::DbWeight::get().reads(3))
// Estimated: `11096`
// Minimum execution time: 11_646_000 picoseconds.
Weight::from_parts(11_944_000, 0)
.saturating_add(Weight::from_parts(0, 11096))
.saturating_add(T::DbWeight::get().reads(4))
}
/// Storage: `PolkadotXcm::VersionNotifyTargets` (r:4 w:2)
/// Storage: `PolkadotXcm::VersionNotifyTargets` (r:5 w:2)
/// Proof: `PolkadotXcm::VersionNotifyTargets` (`max_values`: None, `max_size`: None, mode: `Measured`)
fn migrate_version_notify_targets() -> Weight {
// Proof Size summary in bytes:
// Measured: `173`
// Estimated: `11063`
// Minimum execution time: 17_628_000 picoseconds.
Weight::from_parts(18_146_000, 0)
.saturating_add(Weight::from_parts(0, 11063))
.saturating_add(T::DbWeight::get().reads(4))
// Measured: `170`
// Estimated: `13535`
// Minimum execution time: 19_301_000 picoseconds.
Weight::from_parts(19_664_000, 0)
.saturating_add(Weight::from_parts(0, 13535))
.saturating_add(T::DbWeight::get().reads(5))
.saturating_add(T::DbWeight::get().writes(2))
}
/// Storage: `PolkadotXcm::VersionNotifyTargets` (r:4 w:2)
/// Storage: `PolkadotXcm::VersionNotifyTargets` (r:5 w:2)
/// Proof: `PolkadotXcm::VersionNotifyTargets` (`max_values`: None, `max_size`: None, mode: `Measured`)
/// Storage: `ParachainSystem::UpwardDeliveryFeeFactor` (r:1 w:0)
/// Proof: `ParachainSystem::UpwardDeliveryFeeFactor` (`max_values`: Some(1), `max_size`: None, mode: `Measured`)
Expand All @@ -349,12 +349,12 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
/// Proof: `ParachainSystem::PendingUpwardMessages` (`max_values`: Some(1), `max_size`: None, mode: `Measured`)
fn migrate_and_notify_old_targets() -> Weight {
// Proof Size summary in bytes:
// Measured: `215`
// Estimated: `11105`
// Minimum execution time: 34_877_000 picoseconds.
Weight::from_parts(35_607_000, 0)
.saturating_add(Weight::from_parts(0, 11105))
.saturating_add(T::DbWeight::get().reads(10))
// Measured: `212`
// Estimated: `13577`
// Minimum execution time: 35_715_000 picoseconds.
Weight::from_parts(36_915_000, 0)
.saturating_add(Weight::from_parts(0, 13577))
.saturating_add(T::DbWeight::get().reads(11))
.saturating_add(T::DbWeight::get().writes(4))
}
/// Storage: `PolkadotXcm::QueryCounter` (r:1 w:1)
Expand All @@ -365,8 +365,8 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `103`
// Estimated: `1588`
// Minimum execution time: 5_370_000 picoseconds.
Weight::from_parts(5_616_000, 0)
// Minimum execution time: 4_871_000 picoseconds.
Weight::from_parts(5_066_000, 0)
.saturating_add(Weight::from_parts(0, 1588))
.saturating_add(T::DbWeight::get().reads(1))
.saturating_add(T::DbWeight::get().writes(2))
Expand All @@ -377,10 +377,22 @@ impl<T: frame_system::Config> pallet_xcm::WeightInfo for WeightInfo<T> {
// Proof Size summary in bytes:
// Measured: `7740`
// Estimated: `11205`
// Minimum execution time: 26_820_000 picoseconds.
Weight::from_parts(27_143_000, 0)
// Minimum execution time: 25_150_000 picoseconds.
Weight::from_parts(26_119_000, 0)
.saturating_add(Weight::from_parts(0, 11205))
.saturating_add(T::DbWeight::get().reads(1))
.saturating_add(T::DbWeight::get().writes(1))
}
/// Storage: `PolkadotXcm::AssetTraps` (r:1 w:1)
/// Proof: `PolkadotXcm::AssetTraps` (`max_values`: None, `max_size`: None, mode: `Measured`)
fn claim_assets() -> Weight {
// Proof Size summary in bytes:
// Measured: `160`
// Estimated: `3625`
// Minimum execution time: 38_248_000 picoseconds.
Weight::from_parts(39_122_000, 0)
.saturating_add(Weight::from_parts(0, 3625))
.saturating_add(T::DbWeight::get().reads(1))
.saturating_add(T::DbWeight::get().writes(1))
}
}
7 changes: 7 additions & 0 deletions cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1511,6 +1511,13 @@ impl_runtime_apis! {
});
Some((assets, fee_index as u32, dest, verify))
}

fn get_asset() -> Asset {
Asset {
id: AssetId(Location::parent()),
fun: Fungible(ExistentialDeposit::get()),
}
}
}

use pallet_xcm_bridge_hub_router::benchmarking::{
Expand Down
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