XCM v2: Scripting, Query responses, Exception handling and Error reporting (#3629)

* Intoduce XCM v2 Also some minor fix for v0/v1 * Minor version cleanup * Minor version cleanup * Introduce SendError for XcmSend trait to avoid cycles with having Outcome in Xcm * comment * Corrent type * Docs * Fix build * Fixes * Introduce the basic impl * Docs * Add function * Basic implementation * Weighed responses and on_report * Make XCM more script-like * Remove BuyExecution::orders * Fixes * Fixes * Fixes * Formatting * Initial draft and make pallet-xcm build * fix XCM tests * Formatting * Fixes * Formatting * spelling * Fixes * Fixes * spelling * tests for translation * extra fields to XCM pallet * Formatting * Fixes * spelling * first integration test * Another integration test * Formatting * fix tests * all tests * Fixes * Fixes * Formatting * Fixes * Fixes * Formatting * Bump * Remove unneeded structuring * add instruction * Fixes * spelling * Fixes * Fixes * Formatting * Fixes * Fixes * Formatting * Introduce and use VersionedResponse * Introduce versioning to dispatchables' params * Fixes * Formatting * Rest of merge * more work * Formatting * Basic logic * Fixes * Fixes * Add test * Fixes * Formatting * Fixes * Fixes * Fixes * Nits * Simplify * Spelling * Formatting * Return weight of unexecuted instructions in case of error as surplus * Formatting * Fixes * Test for instruction count limiting * Formatting * Docs
2026-05-30 18:41:03 +00:00 · 2021-08-26 12:41:16 +02:00
parent 4193f05fa3
commit 8b80b283d4
37 changed files with 3070 additions and 966 deletions
@@ -15,10 +15,7 @@
 // along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.

 use frame_support::{parameter_types, traits::Everything, weights::Weight};
-use xcm::latest::{
-	Error as XcmError, Junctions::Here, MultiAsset, MultiLocation, NetworkId, Parent,
-	Result as XcmResult, SendXcm, Xcm,
-};
+use xcm::latest::prelude::*;
 use xcm_builder::{AllowUnpaidExecutionFrom, FixedWeightBounds, SignedToAccountId32};
 use xcm_executor::{
 	traits::{InvertLocation, TransactAsset, WeightTrader},
@@ -27,6 +24,7 @@ use xcm_executor::{

 parameter_types! {
 	pub const OurNetwork: NetworkId = NetworkId::Polkadot;
+	pub const MaxInstructions: u32 = 100;
 }

 /// Type to convert an `Origin` type value into a `MultiLocation` value which represents an interior location
@@ -38,7 +36,7 @@ pub type LocalOriginToLocation = (

 pub struct DoNothingRouter;
 impl SendXcm for DoNothingRouter {
-	fn send_xcm(_dest: MultiLocation, _msg: Xcm<()>) -> XcmResult {
+	fn send_xcm(_dest: MultiLocation, _msg: Xcm<()>) -> SendResult {
 		Ok(())
 	}
 }
@@ -85,7 +83,7 @@ impl xcm_executor::Config for XcmConfig {
 	type IsTeleporter = ();
 	type LocationInverter = InvertNothing;
 	type Barrier = Barrier;
-	type Weigher = FixedWeightBounds<super::BaseXcmWeight, super::Call>;
+	type Weigher = FixedWeightBounds<super::BaseXcmWeight, super::Call, MaxInstructions>;
 	type Trader = DummyWeightTrader;
-	type ResponseHandler = ();
+	type ResponseHandler = super::Xcm;
 }