content: /*
   * Copyright 2015, 2024 StreamEx contributors
   *
   * 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 one.util.streamex;
  
  import java.nio.CharBuffer;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Spliterator;
  import java.util.function.*;
  import java.util.stream.IntStream;
  
  /**
   * @author Tagir Valeev
   */
  /* package */ class VersionSpecific {
  
      <T, S extends AbstractStreamEx<T, S>> S callWhile(AbstractStreamEx<T, S> stream, Predicate<? super T> predicate, boolean drop) {
          Spliterator<T> spltr = stream.spliterator();
          return stream.supply(
                  spltr.hasCharacteristics(Spliterator.ORDERED) ? new TakeDrop.TDOfRef<>(spltr, drop, false, predicate)
                          : new TakeDrop.UnorderedTDOfRef<T>(spltr, drop, false, predicate));
      }
  
      IntStreamEx callWhile(IntStreamEx stream, IntPredicate predicate, boolean drop) {
          return stream.delegate(new TakeDrop.TDOfInt(stream.spliterator(), drop, false, predicate));
      }
  
      LongStreamEx callWhile(LongStreamEx stream, LongPredicate predicate, boolean drop) {
          return stream.delegate(new TakeDrop.TDOfLong(stream.spliterator(), drop, false, predicate));
      }
  
      DoubleStreamEx callWhile(DoubleStreamEx stream, DoublePredicate predicate, boolean drop) {
          return stream.delegate(new TakeDrop.TDOfDouble(stream.spliterator(), drop, false, predicate));
      }
  
      <T, R> StreamEx<R> callMapMulti(AbstractStreamEx<T, ?> s, BiConsumer<? super T, ? super Consumer<R>> mapper) {
          return s.flatCollection(e -> {
              List<R> result = new ArrayList<>();
              mapper.accept(e, (Consumer<R>) result::add);
              return result;
          });
      }
  
      <T> IntStreamEx callMapMultiToInt(AbstractStreamEx<T, ?> s, BiConsumer<? super T, ? super IntConsumer> mapper) {
          return s.flatMapToInt(e -> {
              Internals.IntBuffer result = new Internals.IntBuffer();
              mapper.accept(e, (IntConsumer) result::add);
              return result.stream();
          });
      }
      
      <T> LongStreamEx callMapMultiToLong(AbstractStreamEx<T, ?> s, BiConsumer<? super T, ? super LongConsumer> mapper) {
          return s.flatMapToLong(e -> {
              Internals.LongBuffer result = new Internals.LongBuffer();
              mapper.accept(e, (LongConsumer) result::add);
              return result.stream();
          });
      }
  
      <T> DoubleStreamEx callMapMultiToDouble(AbstractStreamEx<T, ?> s, BiConsumer<? super T, ? super DoubleConsumer> mapper) {
          return s.flatMapToDouble(e -> {
              Internals.DoubleBuffer result = new Internals.DoubleBuffer();
              mapper.accept(e, (DoubleConsumer) result::add);
              return result.stream();
          });
      }
      
      IntStream ofChars(CharSequence seq) {
          // In JDK 8 there's only default chars() method which uses
          // IteratorSpliterator
          // In JDK 9 chars() method for most of implementations is much better
          return CharBuffer.wrap(seq).chars();
      }
  }
  