1234567891011121314151617use frame_support::{18 match_types, parameter_types,19 traits::{Get, Everything},20};21use sp_std::{vec, vec::Vec};22use xcm::v1::{Junction::*, Junctions::*, MultiLocation};23use xcm_builder::{24 AllowKnownQueryResponses, AllowSubscriptionsFrom, TakeWeightCredit,25 AllowTopLevelPaidExecutionFrom,26};2728use crate::{29 Runtime, ParachainInfo, PolkadotXcm,30 runtime_common::{31 config::xcm::{DenyThenTry, DenyTransact, DenyExchangeWithUnknownLocation},32 xcm::OverridableAllowedLocations,33 },34};3536match_types! {37 pub type ParentOrSiblings: impl Contains<MultiLocation> = {38 MultiLocation { parents: 1, interior: Here } |39 MultiLocation { parents: 1, interior: X1(_) }40 };41}4243parameter_types! {44 pub UniqueDefaultAllowedLocations: Vec<MultiLocation> = vec![45 46 MultiLocation {47 parents: 0,48 interior: Here,49 },50 51 MultiLocation {52 parents: 1,53 interior: Here,54 },55 56 MultiLocation {57 parents: 1,58 interior: X1(Parachain(2000)),59 },60 61 MultiLocation {62 parents: 1,63 interior: X1(Parachain(2004)),64 },65 66 MultiLocation {67 parents: 1,68 interior: X1(Parachain(ParachainInfo::get().into())),69 },70 ];71}7273pub type Barrier = DenyThenTry<74 (75 DenyTransact,76 DenyExchangeWithUnknownLocation<77 OverridableAllowedLocations<Runtime, UniqueDefaultAllowedLocations>,78 >,79 ),80 (81 TakeWeightCredit,82 AllowTopLevelPaidExecutionFrom<Everything>,83 84 AllowKnownQueryResponses<PolkadotXcm>,85 86 AllowSubscriptionsFrom<ParentOrSiblings>,87 ),88>;