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XCM: Automatic Version Negotiation (#3736)

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* XCM: Automatic Version Negotiation

* Introduce the version instructions and subscription trait

* Notification and subscription data migration

* Version change subscriptions

* Fixes

* Formatting

* Spelling

* Fixes

* Fixes

* Automatic unsubscription

* Formatting

* Expose remote origin in VM and ensure it is unchanged from actual origin in subscription instructions.

* Barrier

* Unsubscription extrinsic

* Remove top_level param

* Formatting

* Fixes

* Automatic subscription

* Formatting

* Spelling

* Unit tests for XCM executor

* Formatting

* Spellin

* Unit test for XCM pallet subscriber side

* Formatting

* More tests

* Formatting

* Fixes

* Subscription-side tests

* Formatting

* Unit tests for XCM pallet

* Formatting

* Update roadmap/implementers-guide/src/types/overseer-protocol.md

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

* Remove commented code

* Grumbles

* Multi-stage XCM version migration

* Formatting

* v1 subscriptions backport

* Warning

* Spelling

* Fix grumbles

* Formatting

* Avoid running through old notifications

* Formatting

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
This commit is contained in:
Gavin Wood
2021-09-02 18:47:38 +02:00
committed by GitHub
parent 446aa6777e
commit 82ffe7dd17
27 changed files with 1503 additions and 175 deletions
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polkadot/runtime/kusama/src/lib.rs
+3 -1
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@@ -1307,6 +1307,7 @@ impl xcm_executor::Config for XcmConfig {
type ResponseHandler = XcmPallet;
type AssetTrap = XcmPallet;
type AssetClaims = XcmPallet;
type SubscriptionService = XcmPallet;
}
parameter_types! {
@@ -1326,7 +1327,6 @@ pub type LocalOriginToLocation = (
// And a usual Signed origin to be used in XCM as a corresponding AccountId32
SignedToAccountId32<Origin, AccountId, KusamaNetwork>,
);
impl pallet_xcm::Config for Runtime {
type Event = Event;
type SendXcmOrigin = xcm_builder::EnsureXcmOrigin<Origin, LocalOriginToLocation>;
@@ -1342,6 +1342,8 @@ impl pallet_xcm::Config for Runtime {
type LocationInverter = LocationInverter<Ancestry>;
type Origin = Origin;
type Call = Call;
const VERSION_DISCOVERY_QUEUE_SIZE: u32 = 100;
type AdvertisedXcmVersion = pallet_xcm::CurrentXcmVersion;
}
parameter_types! {