content: /*
   * Decompiled with CFR 0.153-SNAPSHOT (d6f6758-dirty).
   */
  package com.google.common.base;
  
  import com.google.common.annotations.GwtCompatible;
  import com.google.common.base.Equivalence;
  import com.google.common.base.Preconditions;
  import java.io.Serializable;
  import java.util.Iterator;
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  @GwtCompatible(serializable=true)
  final class PairwiseEquivalence<T>
  extends Equivalence<Iterable<T>>
  implements Serializable {
      final Equivalence<? super T> elementEquivalence;
      private static final long serialVersionUID = 1L;
  
      PairwiseEquivalence(Equivalence<? super T> elementEquivalence) {
          this.elementEquivalence = Preconditions.checkNotNull(elementEquivalence);
      }
  
      @Override
      protected boolean doEquivalent(Iterable<T> iterableA, Iterable<T> iterableB) {
          Iterator<T> iteratorA = iterableA.iterator();
          Iterator<T> iteratorB = iterableB.iterator();
          while (iteratorA.hasNext() && iteratorB.hasNext()) {
              if (this.elementEquivalence.equivalent(iteratorA.next(), iteratorB.next())) continue;
              return false;
          }
          return !iteratorA.hasNext() && !iteratorB.hasNext();
      }
  
      @Override
      protected int doHash(Iterable<T> iterable) {
          int hash = 78721;
          for (T element : iterable) {
              hash = hash * 24943 + this.elementEquivalence.hash(element);
          }
          return hash;
      }
  
      public boolean equals(@Nullable Object object) {
          if (object instanceof PairwiseEquivalence) {
              PairwiseEquivalence that = (PairwiseEquivalence)object;
              return this.elementEquivalence.equals(that.elementEquivalence);
          }
          return false;
      }
  
      public int hashCode() {
          return this.elementEquivalence.hashCode() ^ 0x46A3EB07;
      }
  
      public String toString() {
          return this.elementEquivalence + ".pairwise()";
      }
  }
  
  