/*
 * Copyright (C) 2022 Objectos Software LTDA.
 *
 * 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 library;

import br.com.objectos.latest.Singleton;
import java.util.Objects;

final class MismatchJava8 extends Mismatch {
  @Singleton.Field
  static final MismatchJava8 INSTANCE = new MismatchJava8();

  @Override
  final int mismatch(byte[] a, byte[] b) {
    Objects.requireNonNull(a, "a == null");
    Objects.requireNonNull(b, "b == null");

    int length;
    length = Math.min(a.length, b.length);

    for (int i = 0; i < length; i++) {
      if (a[i] != b[i]) {
        return i;
      }
    }

    if (a.length == b.length) {
      return -1;
    } else {
      return length;
    }
  }
}