Companion for #13352 (#2180)

* Assets balances * Update docs * AssetsApi with MultiLocation as preparation for multi pallet_assets instances (#2187) * AssetsApi with MultiLocation for Westmint + assets-common * AssetsApi with MultiLocation for Statemine/t * typo * typo for check-docs job * WIP: AssetsApi return MultiAsset instead of (MultiLocation, Balance) * WIP: assets_api + conversion refactor * WIP: assets_api + conversion refactor * Finished asset runtimes * Refactor AssetsApi to FungiblesApi * Refactor * Fix check-rust-docs * Removed todo * Fix check-rust-doc * Update parachains/runtimes/assets/common/Cargo.toml Co-authored-by: Bastian Köcher <git@kchr.de> * update lockfile for {"substrate", "polkadot"} --------- Co-authored-by: Branislav Kontur <bkontur@gmail.com> Co-authored-by: parity-processbot <> Co-authored-by: Bastian Köcher <git@kchr.de>
2026-05-30 15:11:02 +00:00 · 2023-03-02 16:37:18 +02:00
parent 47046d798c
commit 2156cbc046
18 changed files with 917 additions and 466 deletions
@@ -0,0 +1,70 @@
+// Copyright (C) 2023 Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+pub mod fungible_conversion;
+pub mod runtime_api;
+
+use parachains_common::AssetIdForTrustBackedAssets;
+use xcm_builder::{AsPrefixedGeneralIndex, ConvertedConcreteId};
+use xcm_executor::traits::JustTry;
+
+/// `MultiLocation` vs `AssetIdForTrustBackedAssets` converter for `TrustBackedAssets`
+pub type AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocation> =
+	AsPrefixedGeneralIndex<TrustBackedAssetsPalletLocation, AssetIdForTrustBackedAssets, JustTry>;
+
+/// [`ConvertedConcreteId`] converter dedicated for `TrustBackedAssets`
+pub type TrustBackedAssetsConvertedConcreteId<TrustBackedAssetsPalletLocation, Balance> =
+	ConvertedConcreteId<
+		AssetIdForTrustBackedAssets,
+		Balance,
+		AssetIdForTrustBackedAssetsConvert<TrustBackedAssetsPalletLocation>,
+		JustTry,
+	>;
+
+#[cfg(test)]
+mod tests {
+
+	use super::*;
+	use xcm::latest::prelude::*;
+	use xcm_executor::traits::Convert;
+
+	frame_support::parameter_types! {
+		pub TrustBackedAssetsPalletLocation: MultiLocation = MultiLocation::new(5, X1(PalletInstance(13)));
+	}
+
+	#[test]
+	fn asset_id_for_trust_backed_assets_convert_works() {
+		let local_asset_id = 123456789 as AssetIdForTrustBackedAssets;
+		let expected_reverse_ref =
+			MultiLocation::new(5, X2(PalletInstance(13), GeneralIndex(local_asset_id.into())));
+
+		assert_eq!(
+			AssetIdForTrustBackedAssetsConvert::<TrustBackedAssetsPalletLocation>::reverse_ref(
+				local_asset_id
+			)
+			.unwrap(),
+			expected_reverse_ref
+		);
+		assert_eq!(
+			AssetIdForTrustBackedAssetsConvert::<TrustBackedAssetsPalletLocation>::convert_ref(
+				expected_reverse_ref
+			)
+			.unwrap(),
+			local_asset_id
+		);
+	}
+}