com.hedera.node.app.service.evm.accounts.HederaEvmContractAliases Maven / Gradle / Ivy
/*
* Copyright (C) 2022-2024 Hedera Hashgraph, LLC
*
* 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.
*/
package com.hedera.node.app.service.evm.accounts;
import java.util.Arrays;
import org.hyperledger.besu.datatypes.Address;
public abstract class HederaEvmContractAliases {
public static final int EVM_ADDRESS_LEN = 20;
/* A placeholder to store the 12-byte of zeros prefix that marks an EVM address as a "mirror" address. */
private static final byte[] MIRROR_PREFIX = new byte[12];
public abstract Address resolveForEvm(Address addressOrAlias);
public boolean isMirror(final Address address) {
return isMirror(address.toArrayUnsafe());
}
public static boolean isMirror(final byte[] address) {
if (address.length != EVM_ADDRESS_LEN) {
return false;
}
return Arrays.equals(MIRROR_PREFIX, 0, 12, address, 0, 12);
}
}