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Add FungibleAdapter (#2684)

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In the move from the old `Currency` traits to the new `fungible/s`
family of traits, we already had the `FungiblesAdapter` and
`NonFungiblesAdapter` for multiple fungible and non fungible assets
respectively. However, for handling only one fungible asset, we were
missing a `FungibleAdapter`, and so used the old `CurrencyAdapter`
instead. This PR aims to fill in that gap, and provide the new adapter
for more updated examples.

I marked the old `CurrencyAdapter` as deprecated as part of this PR, and
I'll change it to the new `FungibleAdapter` in a following PR.
The two stages are separated so as to not bloat this PR with some name
fixes in tests.

---------

Co-authored-by: command-bot <>
This commit is contained in:
Francisco Aguirre
2023-12-14 15:34:35 +01:00
committed by GitHub
parent 3e4e8c0bd1
commit 10a91f821e
25 changed files with 479 additions and 93 deletions
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polkadot/runtime/rococo/src/xcm_config.rs
+8 -6
View File
@@ -36,15 +36,16 @@ use runtime_common::{
};
use sp_core::ConstU32;
use xcm::latest::prelude::*;
#[allow(deprecated)]
use xcm_builder::CurrencyAdapter as XcmCurrencyAdapter;
use xcm_builder::{
AccountId32Aliases, AllowExplicitUnpaidExecutionFrom, AllowKnownQueryResponses,
AllowSubscriptionsFrom, AllowTopLevelPaidExecutionFrom, ChildParachainAsNative,
ChildParachainConvertsVia, CurrencyAdapter as XcmCurrencyAdapter, DescribeBodyTerminal,
DescribeFamily, FixedWeightBounds, HashedDescription, IsChildSystemParachain, IsConcrete,
MintLocation, OriginToPluralityVoice, SignedAccountId32AsNative, SignedToAccountId32,
SovereignSignedViaLocation, TakeWeightCredit, TrailingSetTopicAsId, UsingComponents,
WeightInfoBounds, WithComputedOrigin, WithUniqueTopic, XcmFeeManagerFromComponents,
XcmFeeToAccount,
ChildParachainConvertsVia, DescribeBodyTerminal, DescribeFamily, FixedWeightBounds,
HashedDescription, IsChildSystemParachain, IsConcrete, MintLocation, OriginToPluralityVoice,
SignedAccountId32AsNative, SignedToAccountId32, SovereignSignedViaLocation, TakeWeightCredit,
TrailingSetTopicAsId, UsingComponents, WeightInfoBounds, WithComputedOrigin, WithUniqueTopic,
XcmFeeManagerFromComponents, XcmFeeToAccount,
};
use xcm_executor::XcmExecutor;
@@ -70,6 +71,7 @@ pub type LocationConverter = (
/// point of view of XCM-only concepts like `MultiLocation` and `MultiAsset`.
///
/// Ours is only aware of the Balances pallet, which is mapped to `RocLocation`.
#[allow(deprecated)]
pub type LocalAssetTransactor = XcmCurrencyAdapter<
// Use this currency:
Balances,