content: /*
   * Copyright 2016 HuntBugs 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.huntbugs.testdata;
  
  import java.util.List;
  import java.util.stream.IntStream;
  import java.util.stream.Stream;
  
  import one.util.huntbugs.registry.anno.AssertNoWarning;
  import one.util.huntbugs.registry.anno.AssertWarning;
  
  /**
   * @author lan
   *
   */
  public class TestAbandonedStream {
      @AssertWarning("AbandonedStream")
      public void testSimple(List<String> list) {
          list.stream().map(String::trim);
      }
      
      @AssertNoWarning("AbandonedStream")
      @AssertWarning("StreamMethodMayNotReturnItself")
      public Stream<String> testClose(List<String> list) {
          Stream<String> stream = list.stream();
          stream.onClose(() -> System.out.println("Closed!"));
          return stream;
      }
      
      @AssertNoWarning("*")
      public void testSimpleOk(List<String> list) {
          list.stream().map(String::trim).forEach(System.out::println);
      }
      
      @AssertNoWarning("*")
      public Stream<String> testSimpleReturn(List<String> list) {
          return list.stream().map(String::trim);
      }
  
      @AssertWarning("AbandonedStream")
      public void testVar(List<String> list) {
          Stream<String> stream = list.stream();
          stream = stream.map(String::trim);
      }
      
      @AssertNoWarning("*")
      public void testVarOk(List<String> list) {
          Stream<String> stream = list.stream();
          stream = stream.map(String::trim);
          stream.forEach(System.out::println);
      }
      
      @AssertWarning("AbandonedStream")
      public void testIf(List<String> list, boolean b) {
          Stream<String> stream = list.stream();
          if(b) {
              stream = stream.map(String::trim);
          }
      }
      
      @AssertNoWarning("*")
      public void testIfOk(List<String> list, boolean b) {
          Stream<String> stream = list.stream();
          if(b) {
              stream = stream.map(String::trim);
          }
          stream.forEach(System.out::println);
      }
      
      @AssertNoWarning("*")
      public void testTernaryOk(List<String> list, boolean b) {
          Stream<String> stream = b ? list.stream() : list.stream().map(String::trim);
          stream.forEach(System.out::println);
      }
      
      @AssertWarning("AbandonedStream")
      public void testToPrimitive(List<String> list) {
          list.stream().mapToInt(String::length);
      }
      
      @AssertWarning("AbandonedStream")
      public void testPrimitive(int[] data) {
          IntStream.of(data).mapToObj(String::valueOf);
      }
  }
  