/*
 * Copyright ConsenSys AG.
 *
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
package org.hyperledger.besu.evm.contractvalidation;

import org.hyperledger.besu.evm.EVM;
import org.hyperledger.besu.evm.frame.ExceptionalHaltReason;
import org.hyperledger.besu.evm.frame.MessageFrame;

import java.util.Optional;

import org.apache.tuweni.bytes.Bytes;

/** The interface Contract validation rule. */
@FunctionalInterface
public interface ContractValidationRule {

  /**
   * Validate.
   *
   * @param contractCode the contract code to validate
   * @param frame the message frame to use for context
   * @param evm the EVM against which the validation rule should be considered
   * @return the optional halt reason
   */
  Optional<ExceptionalHaltReason> validate(Bytes contractCode, MessageFrame frame, EVM evm);
}
