com.hedera.node.app.service.evm.contracts.operations.HederaExtCodeCopyOperationV038 Maven / Gradle / Ivy
/*
* Copyright (C) 2021-2024 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.contracts.operations;
import static org.hyperledger.besu.evm.internal.Words.clampedToLong;
import com.hedera.node.app.service.evm.contracts.execution.EvmProperties;
import java.util.function.BiPredicate;
import java.util.function.Predicate;
import java.util.function.Supplier;
import org.apache.tuweni.bytes.Bytes;
import org.hyperledger.besu.datatypes.Address;
import org.hyperledger.besu.evm.EVM;
import org.hyperledger.besu.evm.frame.MessageFrame;
import org.hyperledger.besu.evm.gascalculator.GasCalculator;
import org.hyperledger.besu.evm.operation.ExtCodeCopyOperation;
/**
* Hedera adapted version of the {@link ExtCodeCopyOperation}.
*
* Performs an existence check on the requested {@link Address} Halts the execution of the EVM
* transaction with {@link HederaExceptionalHaltReason#INVALID_SOLIDITY_ADDRESS} if the account does
* not exist or it is deleted.
*/
public class HederaExtCodeCopyOperationV038 extends ExtCodeCopyOperation {
private final BiPredicate addressValidator;
private final Predicate systemAccountDetector;
private final EvmProperties evmProperties;
public HederaExtCodeCopyOperationV038(
GasCalculator gasCalculator,
BiPredicate addressValidator,
Predicate systemAccountDetector,
EvmProperties evmProperties) {
super(gasCalculator);
this.addressValidator = addressValidator;
this.systemAccountDetector = systemAccountDetector;
this.evmProperties = evmProperties;
}
@Override
public OperationResult execute(MessageFrame frame, EVM evm) {
final long memOffset = clampedToLong(frame.getStackItem(1));
final long numBytes = clampedToLong(frame.getStackItem(3));
final Supplier systemAccountExecutionSupplier = () -> {
final var sourceOffset = clampedToLong(frame.getStackItem(2));
frame.writeMemory(memOffset, sourceOffset, numBytes, Bytes.EMPTY);
frame.popStackItems(4); // clear all the input arguments from the stack
return new OperationResult(cost(frame, memOffset, numBytes, true), null);
};
return HederaEvmOperationsUtilV038.addressCheckExecution(
frame,
() -> frame.getStackItem(0),
() -> cost(frame, memOffset, numBytes, true),
() -> super.execute(frame, evm),
addressValidator,
systemAccountDetector,
systemAccountExecutionSupplier,
evmProperties);
}
}