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Allow Queries and Subscriptions (#700)

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* Allow Queries and Subscriptions

* Fixes

* Formatting
This commit is contained in:
Gavin Wood
2021-10-27 18:14:27 +02:00
committed by GitHub
parent 0793aa8937
commit 41c597faa7
5 changed files with 66 additions and 24 deletions
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parachain-template/runtime/src/lib.rs
+15 -5
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@@ -49,11 +49,11 @@ use polkadot_runtime_common::{BlockHashCount, RocksDbWeight, SlowAdjustingFeeUpd
// XCM Imports
use xcm::latest::prelude::*;
use xcm_builder::{
AccountId32Aliases, AllowTopLevelPaidExecutionFrom, AllowUnpaidExecutionFrom, CurrencyAdapter,
EnsureXcmOrigin, FixedWeightBounds, IsConcrete, LocationInverter, NativeAsset,
ParentAsSuperuser, ParentIsDefault, RelayChainAsNative, SiblingParachainAsNative,
SiblingParachainConvertsVia, SignedAccountId32AsNative, SovereignSignedViaLocation,
TakeWeightCredit, UsingComponents,
AccountId32Aliases, AllowKnownQueryResponses, AllowSubscriptionsFrom,
AllowTopLevelPaidExecutionFrom, AllowUnpaidExecutionFrom, CurrencyAdapter, EnsureXcmOrigin,
FixedWeightBounds, IsConcrete, LocationInverter, NativeAsset, ParentAsSuperuser,
ParentIsDefault, RelayChainAsNative, SiblingParachainAsNative, SiblingParachainConvertsVia,
SignedAccountId32AsNative, SovereignSignedViaLocation, TakeWeightCredit, UsingComponents,
};
use xcm_executor::{Config, XcmExecutor};
@@ -465,12 +465,22 @@ match_type! {
MultiLocation { parents: 1, interior: X1(Plurality { id: BodyId::Executive, .. }) }
};
}
match_type! {
pub type ParentOrSiblings: impl Contains<MultiLocation> = {
MultiLocation { parents: 1, interior: Here } |
MultiLocation { parents: 1, interior: X1(_) }
};
}
pub type Barrier = (
TakeWeightCredit,
AllowTopLevelPaidExecutionFrom<Everything>,
AllowUnpaidExecutionFrom<ParentOrParentsExecutivePlurality>,
// ^^^ Parent and its exec plurality get free execution
// Expected responses are OK.
AllowKnownQueryResponses<PolkadotXcm>,
// Subscriptions for version tracking are OK.
AllowSubscriptionsFrom<ParentOrSiblings>,
);
pub struct XcmConfig;