com.google.gwt.emul.java.util.Spliterator Maven / Gradle / Ivy
/*
* Copyright 2016 Google Inc.
*
* 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 java.util;
import java.util.function.Consumer;
import java.util.function.DoubleConsumer;
import java.util.function.IntConsumer;
import java.util.function.LongConsumer;
/**
* See
* the official Java API doc for details.
*
* @param the type of elements returned by Spliterator.
*/
public interface Spliterator {
int DISTINCT = 0x00000001;
int ORDERED = 0x00000010;
int NONNULL = 0x00000100;
int CONCURRENT = 0x00001000;
int SORTED = 0x00000004;
int SIZED = 0x00000040;
int IMMUTABLE = 0x00000400;
int SUBSIZED = 0x00004000;
int characteristics();
long estimateSize();
default void forEachRemaining(Consumer consumer) {
while (tryAdvance(consumer)) { }
}
default Comparator getComparator() {
throw new IllegalStateException();
}
default long getExactSizeIfKnown() {
return hasCharacteristics(SIZED) ? estimateSize() : -1L;
}
default boolean hasCharacteristics(int characteristics) {
return (characteristics() & characteristics) != 0;
}
boolean tryAdvance(Consumer consumer);
Spliterator trySplit();
/**
* See
* the official Java API doc for details.
*
* @param the type of elements returned by this Spliterator.
* @param the type of primitive Consumer.
* @param the type of primitive Spliterator.
*/
interface OfPrimitive> extends Spliterator {
boolean tryAdvance(C consumer);
@Override
S trySplit();
default void forEachRemaining(C consumer) {
while (tryAdvance(consumer)) { }
}
}
/**
* See
* the official Java API doc for details.
*/
interface OfDouble extends OfPrimitive {
@Override
default boolean tryAdvance(Consumer consumer) {
if (consumer instanceof DoubleConsumer) {
return tryAdvance((DoubleConsumer) consumer);
} else {
return tryAdvance((DoubleConsumer) consumer::accept);
}
}
@Override
default void forEachRemaining(Consumer consumer) {
if (consumer instanceof DoubleConsumer) {
forEachRemaining((DoubleConsumer) consumer);
} else {
forEachRemaining((DoubleConsumer) consumer::accept);
}
}
}
/**
* See
* the official Java API doc for details.
*/
interface OfInt extends OfPrimitive {
@Override
default boolean tryAdvance(Consumer consumer) {
if (consumer instanceof IntConsumer) {
return tryAdvance((IntConsumer) consumer);
} else {
return tryAdvance((IntConsumer) consumer::accept);
}
}
@Override
default void forEachRemaining(Consumer consumer) {
if (consumer instanceof IntConsumer) {
forEachRemaining((IntConsumer) consumer);
} else {
forEachRemaining((IntConsumer) consumer::accept);
}
}
}
/**
* See
* the official Java API doc for details.
*/
interface OfLong extends OfPrimitive {
@Override
default boolean tryAdvance(Consumer consumer) {
if (consumer instanceof LongConsumer) {
return tryAdvance((LongConsumer) consumer);
} else {
return tryAdvance((LongConsumer) consumer::accept);
}
}
@Override
default void forEachRemaining(Consumer consumer) {
if (consumer instanceof LongConsumer) {
forEachRemaining((LongConsumer) consumer);
} else {
forEachRemaining((LongConsumer) consumer::accept);
}
}
}
}