--- a/jdk/test/java/util/stream/bootlib/java/util/stream/DefaultMethodStreams.java Fri Nov 20 15:40:23 2015 -0800
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,984 +0,0 @@
-/*
- * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package java.util.stream;
-
-import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
-import java.util.Comparator;
-import java.util.DoubleSummaryStatistics;
-import java.util.IntSummaryStatistics;
-import java.util.Iterator;
-import java.util.LongSummaryStatistics;
-import java.util.Optional;
-import java.util.OptionalDouble;
-import java.util.OptionalInt;
-import java.util.OptionalLong;
-import java.util.PrimitiveIterator;
-import java.util.Set;
-import java.util.Spliterator;
-import java.util.function.BiConsumer;
-import java.util.function.BiFunction;
-import java.util.function.BinaryOperator;
-import java.util.function.Consumer;
-import java.util.function.DoubleBinaryOperator;
-import java.util.function.DoubleConsumer;
-import java.util.function.DoubleFunction;
-import java.util.function.DoublePredicate;
-import java.util.function.DoubleToIntFunction;
-import java.util.function.DoubleToLongFunction;
-import java.util.function.DoubleUnaryOperator;
-import java.util.function.Function;
-import java.util.function.IntBinaryOperator;
-import java.util.function.IntConsumer;
-import java.util.function.IntFunction;
-import java.util.function.IntPredicate;
-import java.util.function.IntToDoubleFunction;
-import java.util.function.IntToLongFunction;
-import java.util.function.IntUnaryOperator;
-import java.util.function.LongBinaryOperator;
-import java.util.function.LongConsumer;
-import java.util.function.LongFunction;
-import java.util.function.LongPredicate;
-import java.util.function.LongToDoubleFunction;
-import java.util.function.LongToIntFunction;
-import java.util.function.LongUnaryOperator;
-import java.util.function.ObjDoubleConsumer;
-import java.util.function.ObjIntConsumer;
-import java.util.function.ObjLongConsumer;
-import java.util.function.Predicate;
-import java.util.function.Supplier;
-import java.util.function.ToDoubleFunction;
-
-import java.util.function.ToIntFunction;
-import java.util.function.ToLongFunction;
-
-import static java.util.stream.Collectors.*;
-
-public final class DefaultMethodStreams {
-
- static {
- // Verify that default methods are not overridden
- verify(DefaultMethodRefStream.class);
- verify(DefaultMethodIntStream.class);
- verify(DefaultMethodLongStream.class);
- verify(DefaultMethodDoubleStream.class);
- }
-
- static void verify(Class<?> del) {
- // Find the stream interface
- Class<?> s = Stream.of(del.getInterfaces())
- .filter(c -> BaseStream.class.isAssignableFrom(c))
- .findFirst().get();
-
- // Get all default methods on the stream class
- Set<String> dms = Stream.of(s.getMethods())
- .filter(m -> !Modifier.isStatic(m.getModifiers()))
- .filter(m -> !m.isBridge())
- .filter(Method::isDefault)
- .map(Method::getName)
- .collect(toSet());
-
- // Get all methods on the delegating class
- Set<String> ims = Stream.of(del.getMethods())
- .filter(m -> !Modifier.isStatic(m.getModifiers()))
- .filter(m -> m.getDeclaringClass() == del)
- .map(Method::getName)
- .collect(toSet());
-
- if (ims.stream().anyMatch(dms::contains)) {
- throw new AssertionError(String.format("%s overrides default methods of %s\n", del, s));
- }
- }
-
- /**
- * Creates a stream that for the next operation either delegates to
- * a default method on {@link Stream}, if present for that operation,
- * otherwise delegates to an underlying stream.
- *
- * @param s the underlying stream to be delegated to for non-default
- * methods.
- * @param <T> the type of the stream elements
- * @return the delegating stream
- */
- public static <T> Stream<T> delegateTo(Stream<T> s) {
- return new DefaultMethodRefStream<>(s);
- }
-
- /**
- * Creates a stream that for the next operation either delegates to
- * a default method on {@link IntStream}, if present for that operation,
- * otherwise delegates to an underlying stream.
- *
- * @param s the underlying stream to be delegated to for non-default
- * methods.
- * @return the delegating stream
- */
- public static IntStream delegateTo(IntStream s) {
- return new DefaultMethodIntStream(s);
- }
-
- /**
- * Creates a stream that for the next operation either delegates to
- * a default method on {@link LongStream}, if present for that operation,
- * otherwise delegates to an underlying stream.
- *
- * @param s the underlying stream to be delegated to for non-default
- * methods.
- * @return the delegating stream
- */
- public static LongStream delegateTo(LongStream s) {
- return new DefaultMethodLongStream(s);
- }
-
- /**
- * Creates a stream that for the next operation either delegates to
- * a default method on {@link DoubleStream}, if present for that operation,
- * otherwise delegates to an underlying stream.
- *
- * @param s the underlying stream to be delegated to for non-default
- * methods.
- * @return the delegating stream
- */
- public static DoubleStream delegateTo(DoubleStream s) {
- return new DefaultMethodDoubleStream(s);
- }
-
- /**
- * A stream that delegates the next operation to a default method, if
- * present, or to the same operation of an underlying stream.
- *
- * @param <T> the type of the stream elements
- */
- static final class DefaultMethodRefStream<T> implements Stream<T> {
- final Stream<T> s;
-
- DefaultMethodRefStream(Stream<T> s) {
- this.s = s;
- }
-
-
- // Delegating non-default methods
-
- @Override
- public Stream<T> filter(Predicate<? super T> predicate) {
- return s.filter(predicate);
- }
-
- @Override
- public <R> Stream<R> map(Function<? super T, ? extends R> mapper) {
- return s.map(mapper);
- }
-
- @Override
- public IntStream mapToInt(ToIntFunction<? super T> mapper) {
- return s.mapToInt(mapper);
- }
-
- @Override
- public LongStream mapToLong(ToLongFunction<? super T> mapper) {
- return s.mapToLong(mapper);
- }
-
- @Override
- public DoubleStream mapToDouble(ToDoubleFunction<? super T> mapper) {
- return s.mapToDouble(mapper);
- }
-
- @Override
- public <R> Stream<R> flatMap(Function<? super T, ? extends Stream<? extends R>> mapper) {
- return s.flatMap(mapper);
- }
-
- @Override
- public IntStream flatMapToInt(Function<? super T, ? extends IntStream> mapper) {
- return s.flatMapToInt(mapper);
- }
-
- @Override
- public LongStream flatMapToLong(Function<? super T, ? extends LongStream> mapper) {
- return s.flatMapToLong(mapper);
- }
-
- @Override
- public DoubleStream flatMapToDouble(Function<? super T, ? extends DoubleStream> mapper) {
- return s.flatMapToDouble(mapper);
- }
-
- @Override
- public Stream<T> distinct() {
- return s.distinct();
- }
-
- @Override
- public Stream<T> sorted() {
- return s.sorted();
- }
-
- @Override
- public Stream<T> sorted(Comparator<? super T> comparator) {
- return s.sorted(comparator);
- }
-
- @Override
- public Stream<T> peek(Consumer<? super T> action) {
- return s.peek(action);
- }
-
- @Override
- public Stream<T> limit(long maxSize) {
- return s.limit(maxSize);
- }
-
- @Override
- public Stream<T> skip(long n) {
- return s.skip(n);
- }
-
- @Override
- public void forEach(Consumer<? super T> action) {
- s.forEach(action);
- }
-
- @Override
- public void forEachOrdered(Consumer<? super T> action) {
- s.forEachOrdered(action);
- }
-
- @Override
- public Object[] toArray() {
- return s.toArray();
- }
-
- @Override
- public <A> A[] toArray(IntFunction<A[]> generator) {
- return s.toArray(generator);
- }
-
- @Override
- public T reduce(T identity, BinaryOperator<T> accumulator) {
- return s.reduce(identity, accumulator);
- }
-
- @Override
- public Optional<T> reduce(BinaryOperator<T> accumulator) {
- return s.reduce(accumulator);
- }
-
- @Override
- public <U> U reduce(U identity, BiFunction<U, ? super T, U> accumulator, BinaryOperator<U> combiner) {
- return s.reduce(identity, accumulator, combiner);
- }
-
- @Override
- public <R> R collect(Supplier<R> supplier, BiConsumer<R, ? super T> accumulator, BiConsumer<R, R> combiner) {
- return s.collect(supplier, accumulator, combiner);
- }
-
- @Override
- public <R, A> R collect(Collector<? super T, A, R> collector) {
- return s.collect(collector);
- }
-
- @Override
- public Optional<T> min(Comparator<? super T> comparator) {
- return s.min(comparator);
- }
-
- @Override
- public Optional<T> max(Comparator<? super T> comparator) {
- return s.max(comparator);
- }
-
- @Override
- public long count() {
- return s.count();
- }
-
- @Override
- public boolean anyMatch(Predicate<? super T> predicate) {
- return s.anyMatch(predicate);
- }
-
- @Override
- public boolean allMatch(Predicate<? super T> predicate) {
- return s.allMatch(predicate);
- }
-
- @Override
- public boolean noneMatch(Predicate<? super T> predicate) {
- return s.noneMatch(predicate);
- }
-
- @Override
- public Optional<T> findFirst() {
- return s.findFirst();
- }
-
- @Override
- public Optional<T> findAny() {
- return s.findAny();
- }
-
- @Override
- public Iterator<T> iterator() {
- return s.iterator();
- }
-
- @Override
- public Spliterator<T> spliterator() {
- return s.spliterator();
- }
-
- @Override
- public boolean isParallel() {
- return s.isParallel();
- }
-
- @Override
- public Stream<T> sequential() {
- return s.sequential();
- }
-
- @Override
- public Stream<T> parallel() {
- return s.parallel();
- }
-
- @Override
- public Stream<T> unordered() {
- return s.unordered();
- }
-
- @Override
- public Stream<T> onClose(Runnable closeHandler) {
- return s.onClose(closeHandler);
- }
-
- @Override
- public void close() {
- s.close();
- }
- }
-
- static final class DefaultMethodIntStream implements IntStream {
- final IntStream s;
-
- public DefaultMethodIntStream(IntStream s) {
- this.s = s;
- }
-
-
- // Delegating non-default methods
-
- @Override
- public IntStream filter(IntPredicate predicate) {
- return s.filter(predicate);
- }
-
- @Override
- public IntStream map(IntUnaryOperator mapper) {
- return s.map(mapper);
- }
-
- @Override
- public <U> Stream<U> mapToObj(IntFunction<? extends U> mapper) {
- return s.mapToObj(mapper);
- }
-
- @Override
- public LongStream mapToLong(IntToLongFunction mapper) {
- return s.mapToLong(mapper);
- }
-
- @Override
- public DoubleStream mapToDouble(IntToDoubleFunction mapper) {
- return s.mapToDouble(mapper);
- }
-
- @Override
- public IntStream flatMap(IntFunction<? extends IntStream> mapper) {
- return s.flatMap(mapper);
- }
-
- @Override
- public IntStream distinct() {
- return s.distinct();
- }
-
- @Override
- public IntStream sorted() {
- return s.sorted();
- }
-
- @Override
- public IntStream peek(IntConsumer action) {
- return s.peek(action);
- }
-
- @Override
- public IntStream limit(long maxSize) {
- return s.limit(maxSize);
- }
-
- @Override
- public IntStream skip(long n) {
- return s.skip(n);
- }
-
- @Override
- public void forEach(IntConsumer action) {
- s.forEach(action);
- }
-
- @Override
- public void forEachOrdered(IntConsumer action) {
- s.forEachOrdered(action);
- }
-
- @Override
- public int[] toArray() {
- return s.toArray();
- }
-
- @Override
- public int reduce(int identity, IntBinaryOperator op) {
- return s.reduce(identity, op);
- }
-
- @Override
- public OptionalInt reduce(IntBinaryOperator op) {
- return s.reduce(op);
- }
-
- @Override
- public <R> R collect(Supplier<R> supplier, ObjIntConsumer<R> accumulator, BiConsumer<R, R> combiner) {
- return s.collect(supplier, accumulator, combiner);
- }
-
- @Override
- public int sum() {
- return s.sum();
- }
-
- @Override
- public OptionalInt min() {
- return s.min();
- }
-
- @Override
- public OptionalInt max() {
- return s.max();
- }
-
- @Override
- public long count() {
- return s.count();
- }
-
- @Override
- public OptionalDouble average() {
- return s.average();
- }
-
- @Override
- public IntSummaryStatistics summaryStatistics() {
- return s.summaryStatistics();
- }
-
- @Override
- public boolean anyMatch(IntPredicate predicate) {
- return s.anyMatch(predicate);
- }
-
- @Override
- public boolean allMatch(IntPredicate predicate) {
- return s.allMatch(predicate);
- }
-
- @Override
- public boolean noneMatch(IntPredicate predicate) {
- return s.noneMatch(predicate);
- }
-
- @Override
- public OptionalInt findFirst() {
- return s.findFirst();
- }
-
- @Override
- public OptionalInt findAny() {
- return s.findAny();
- }
-
- @Override
- public LongStream asLongStream() {
- return s.asLongStream();
- }
-
- @Override
- public DoubleStream asDoubleStream() {
- return s.asDoubleStream();
- }
-
- @Override
- public Stream<Integer> boxed() {
- return s.boxed();
- }
-
- @Override
- public IntStream sequential() {
- return s.sequential();
- }
-
- @Override
- public IntStream parallel() {
- return s.parallel();
- }
-
- @Override
- public PrimitiveIterator.OfInt iterator() {
- return s.iterator();
- }
-
- @Override
- public Spliterator.OfInt spliterator() {
- return s.spliterator();
- }
-
- @Override
- public boolean isParallel() {
- return s.isParallel();
- }
-
- @Override
- public IntStream unordered() {
- return s.unordered();
- }
-
- @Override
- public IntStream onClose(Runnable closeHandler) {
- return s.onClose(closeHandler);
- }
-
- @Override
- public void close() {
- s.close();
- }
- }
-
- static final class DefaultMethodLongStream implements LongStream {
- final LongStream s;
-
- public DefaultMethodLongStream(LongStream s) {
- this.s = s;
- }
-
-
- // Delegating non-default methods
-
- @Override
- public void forEach(LongConsumer action) {
- s.forEach(action);
- }
-
- @Override
- public LongStream filter(LongPredicate predicate) {
- return s.filter(predicate);
- }
-
- @Override
- public LongStream map(LongUnaryOperator mapper) {
- return s.map(mapper);
- }
-
- @Override
- public <U> Stream<U> mapToObj(LongFunction<? extends U> mapper) {
- return s.mapToObj(mapper);
- }
-
- @Override
- public IntStream mapToInt(LongToIntFunction mapper) {
- return s.mapToInt(mapper);
- }
-
- @Override
- public DoubleStream mapToDouble(LongToDoubleFunction mapper) {
- return s.mapToDouble(mapper);
- }
-
- @Override
- public LongStream flatMap(LongFunction<? extends LongStream> mapper) {
- return s.flatMap(mapper);
- }
-
- @Override
- public LongStream distinct() {
- return s.distinct();
- }
-
- @Override
- public LongStream sorted() {
- return s.sorted();
- }
-
- @Override
- public LongStream peek(LongConsumer action) {
- return s.peek(action);
- }
-
- @Override
- public LongStream limit(long maxSize) {
- return s.limit(maxSize);
- }
-
- @Override
- public LongStream skip(long n) {
- return s.skip(n);
- }
-
- @Override
- public void forEachOrdered(LongConsumer action) {
- s.forEachOrdered(action);
- }
-
- @Override
- public long[] toArray() {
- return s.toArray();
- }
-
- @Override
- public long reduce(long identity, LongBinaryOperator op) {
- return s.reduce(identity, op);
- }
-
- @Override
- public OptionalLong reduce(LongBinaryOperator op) {
- return s.reduce(op);
- }
-
- @Override
- public <R> R collect(Supplier<R> supplier, ObjLongConsumer<R> accumulator, BiConsumer<R, R> combiner) {
- return s.collect(supplier, accumulator, combiner);
- }
-
- @Override
- public long sum() {
- return s.sum();
- }
-
- @Override
- public OptionalLong min() {
- return s.min();
- }
-
- @Override
- public OptionalLong max() {
- return s.max();
- }
-
- @Override
- public long count() {
- return s.count();
- }
-
- @Override
- public OptionalDouble average() {
- return s.average();
- }
-
- @Override
- public LongSummaryStatistics summaryStatistics() {
- return s.summaryStatistics();
- }
-
- @Override
- public boolean anyMatch(LongPredicate predicate) {
- return s.anyMatch(predicate);
- }
-
- @Override
- public boolean allMatch(LongPredicate predicate) {
- return s.allMatch(predicate);
- }
-
- @Override
- public boolean noneMatch(LongPredicate predicate) {
- return s.noneMatch(predicate);
- }
-
- @Override
- public OptionalLong findFirst() {
- return s.findFirst();
- }
-
- @Override
- public OptionalLong findAny() {
- return s.findAny();
- }
-
- @Override
- public DoubleStream asDoubleStream() {
- return s.asDoubleStream();
- }
-
- @Override
- public Stream<Long> boxed() {
- return s.boxed();
- }
-
- @Override
- public LongStream sequential() {
- return s.sequential();
- }
-
- @Override
- public LongStream parallel() {
- return s.parallel();
- }
-
- @Override
- public PrimitiveIterator.OfLong iterator() {
- return s.iterator();
- }
-
- @Override
- public Spliterator.OfLong spliterator() {
- return s.spliterator();
- }
-
- @Override
- public boolean isParallel() {
- return s.isParallel();
- }
-
- @Override
- public LongStream unordered() {
- return s.unordered();
- }
-
- @Override
- public LongStream onClose(Runnable closeHandler) {
- return s.onClose(closeHandler);
- }
-
- @Override
- public void close() {
- s.close();
- }
- }
-
- static final class DefaultMethodDoubleStream implements DoubleStream {
- final DoubleStream s;
-
- public DefaultMethodDoubleStream(DoubleStream s) {
- this.s = s;
- }
-
- @Override
- public DoubleStream filter(DoublePredicate predicate) {
- return s.filter(predicate);
- }
-
- @Override
- public DoubleStream map(DoubleUnaryOperator mapper) {
- return s.map(mapper);
- }
-
- @Override
- public <U> Stream<U> mapToObj(DoubleFunction<? extends U> mapper) {
- return s.mapToObj(mapper);
- }
-
- @Override
- public IntStream mapToInt(DoubleToIntFunction mapper) {
- return s.mapToInt(mapper);
- }
-
- @Override
- public LongStream mapToLong(DoubleToLongFunction mapper) {
- return s.mapToLong(mapper);
- }
-
- @Override
- public DoubleStream flatMap(DoubleFunction<? extends DoubleStream> mapper) {
- return s.flatMap(mapper);
- }
-
- @Override
- public DoubleStream distinct() {
- return s.distinct();
- }
-
- @Override
- public DoubleStream sorted() {
- return s.sorted();
- }
-
- @Override
- public DoubleStream peek(DoubleConsumer action) {
- return s.peek(action);
- }
-
- @Override
- public DoubleStream limit(long maxSize) {
- return s.limit(maxSize);
- }
-
- @Override
- public DoubleStream skip(long n) {
- return s.skip(n);
- }
-
- @Override
- public void forEach(DoubleConsumer action) {
- s.forEach(action);
- }
-
- @Override
- public void forEachOrdered(DoubleConsumer action) {
- s.forEachOrdered(action);
- }
-
- @Override
- public double[] toArray() {
- return s.toArray();
- }
-
- @Override
- public double reduce(double identity, DoubleBinaryOperator op) {
- return s.reduce(identity, op);
- }
-
- @Override
- public OptionalDouble reduce(DoubleBinaryOperator op) {
- return s.reduce(op);
- }
-
- @Override
- public <R> R collect(Supplier<R> supplier, ObjDoubleConsumer<R> accumulator, BiConsumer<R, R> combiner) {
- return s.collect(supplier, accumulator, combiner);
- }
-
- @Override
- public double sum() {
- return s.sum();
- }
-
- @Override
- public OptionalDouble min() {
- return s.min();
- }
-
- @Override
- public OptionalDouble max() {
- return s.max();
- }
-
- @Override
- public long count() {
- return s.count();
- }
-
- @Override
- public OptionalDouble average() {
- return s.average();
- }
-
- @Override
- public DoubleSummaryStatistics summaryStatistics() {
- return s.summaryStatistics();
- }
-
- @Override
- public boolean anyMatch(DoublePredicate predicate) {
- return s.anyMatch(predicate);
- }
-
- @Override
- public boolean allMatch(DoublePredicate predicate) {
- return s.allMatch(predicate);
- }
-
- @Override
- public boolean noneMatch(DoublePredicate predicate) {
- return s.noneMatch(predicate);
- }
-
- @Override
- public OptionalDouble findFirst() {
- return s.findFirst();
- }
-
- @Override
- public OptionalDouble findAny() {
- return s.findAny();
- }
-
- @Override
- public Stream<Double> boxed() {
- return s.boxed();
- }
-
- @Override
- public DoubleStream sequential() {
- return s.sequential();
- }
-
- @Override
- public DoubleStream parallel() {
- return s.parallel();
- }
-
- @Override
- public PrimitiveIterator.OfDouble iterator() {
- return s.iterator();
- }
-
- @Override
- public Spliterator.OfDouble spliterator() {
- return s.spliterator();
- }
-
- @Override
- public boolean isParallel() {
- return s.isParallel();
- }
-
- @Override
- public DoubleStream unordered() {
- return s.unordered();
- }
-
- @Override
- public DoubleStream onClose(Runnable closeHandler) {
- return s.onClose(closeHandler);
- }
-
- @Override
- public void close() {
- s.close();
- }
- }
-}