42 lines
1.4 KiB
Rust
42 lines
1.4 KiB
Rust
// SPDX-License-Identifier: Apache-2.0
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// SPDX-FileCopyrightText: 2023 Snowfork <hello@snowfork.com>
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// SPDX-FileCopyrightText: 2021-2022 Parity Technologies (UK) Ltd.
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#![cfg_attr(not(feature = "std"), no_std)]
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pub mod v1;
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pub mod v2;
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use codec::Encode;
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use sp_core::blake2_256;
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use sp_std::marker::PhantomData;
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use xcm::prelude::{AccountKey20, Ethereum, GlobalConsensus, Location};
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use xcm_executor::traits::ConvertLocation;
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pub use snowbridge_verification_primitives::*;
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/// DEPRECATED in favor of [xcm_builder::ExternalConsensusLocationsConverterFor]
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pub struct EthereumLocationsConverterFor<AccountId>(PhantomData<AccountId>);
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impl<AccountId> ConvertLocation<AccountId> for EthereumLocationsConverterFor<AccountId>
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where
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AccountId: From<[u8; 32]> + Clone,
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{
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fn convert_location(location: &Location) -> Option<AccountId> {
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match location.unpack() {
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(2, [GlobalConsensus(Ethereum { chain_id })]) =>
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Some(Self::from_chain_id(chain_id).into()),
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(2, [GlobalConsensus(Ethereum { chain_id }), AccountKey20 { network: _, key }]) =>
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Some(Self::from_chain_id_with_key(chain_id, *key).into()),
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_ => None,
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}
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}
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}
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impl<AccountId> EthereumLocationsConverterFor<AccountId> {
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pub fn from_chain_id(chain_id: &u64) -> [u8; 32] {
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(b"ethereum-chain", chain_id).using_encoded(blake2_256)
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}
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pub fn from_chain_id_with_key(chain_id: &u64, key: [u8; 20]) -> [u8; 32] {
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(b"ethereum-chain", chain_id, key).using_encoded(blake2_256)
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}
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}
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pub type CallIndex = [u8; 2];
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