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Collectors.java

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package fj.data;

import java.util.stream.Collector;

public final class Collectors {

private Collectors() {

}

public static <A> Collector<A, List.Buffer<A>, List<A>> toList() {

return Collector.of(

List.Buffer::new,

List.Buffer::snoc,

(acc1, acc2) -> acc1.append(acc2.toList()),

List.Buffer::toList

);

}

public static <A> Collector<A, List.Buffer<A>, Array<A>> toArray() {

return Collector.of(

List.Buffer::new,

List.Buffer::snoc,

(acc1, acc2) -> acc1.append(acc2.toList()),

(buf) -> Array.iterableArray(buf.toList())

);

}

public static <A> Collector<A, List.Buffer<A>, Stream<A>> toStream() {

return Collector.of(

List.Buffer::new,

List.Buffer::snoc,

(acc1, acc2) -> acc1.append(acc2.toList()),

(buf) -> Stream.iterableStream(buf.toList())

);

}