87 lines
2.5 KiB
Java
87 lines
2.5 KiB
Java
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package com.google.common.base;
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import java.util.Iterator;
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import java.util.NoSuchElementException;
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/* loaded from: classes2.dex */
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abstract class AbstractIterator<T> implements Iterator<T> {
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private T next;
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private State state = State.NOT_READY;
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/* JADX INFO: Access modifiers changed from: package-private */
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/* loaded from: classes2.dex */
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public enum State {
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READY,
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NOT_READY,
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DONE,
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FAILED
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}
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protected abstract T computeNext();
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/* JADX INFO: Access modifiers changed from: protected */
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public final T endOfData() {
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this.state = State.DONE;
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return null;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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/* renamed from: com.google.common.base.AbstractIterator$1, reason: invalid class name */
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/* loaded from: classes2.dex */
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public static /* synthetic */ class AnonymousClass1 {
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static final int[] $SwitchMap$com$google$common$base$AbstractIterator$State;
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static {
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int[] iArr = new int[State.values().length];
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$SwitchMap$com$google$common$base$AbstractIterator$State = iArr;
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try {
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iArr[State.DONE.ordinal()] = 1;
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} catch (NoSuchFieldError unused) {
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}
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try {
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$SwitchMap$com$google$common$base$AbstractIterator$State[State.READY.ordinal()] = 2;
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} catch (NoSuchFieldError unused2) {
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}
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}
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}
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@Override // java.util.Iterator
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public final boolean hasNext() {
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Preconditions.checkState(this.state != State.FAILED);
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int i = AnonymousClass1.$SwitchMap$com$google$common$base$AbstractIterator$State[this.state.ordinal()];
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if (i == 1) {
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return false;
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}
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if (i != 2) {
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return tryToComputeNext();
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}
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return true;
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}
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private boolean tryToComputeNext() {
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this.state = State.FAILED;
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this.next = computeNext();
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if (this.state == State.DONE) {
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return false;
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}
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this.state = State.READY;
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return true;
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}
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@Override // java.util.Iterator
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public final T next() {
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if (!hasNext()) {
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throw new NoSuchElementException();
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}
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this.state = State.NOT_READY;
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T t = this.next;
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this.next = null;
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return t;
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}
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@Override // java.util.Iterator
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public final void remove() {
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throw new UnsupportedOperationException();
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}
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}
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