/*
   InnerAssignment
   
   
   */
   
   package com.puppycrawl.tools.checkstyle.checks.coding.innerassignment;
   
   import java.io.FileInputStream;
  import java.io.IOException;
  import java.util.jar.JarInputStream;
  import java.util.jar.Manifest;
  
  public class InputInnerAssignment
  {
      void innerAssignments()
      {
          int a;
          int b;
          int c;
  
          a = b = c = 1;
          // 2 violations above:
          //'Inner assignments should be avoided'
          //'Inner assignments should be avoided'
  
          String s = Integer.toString(b = 2); // violation, 'Inner assignments should be avoided'
  
          Integer i = new Integer(a += 5); // violation, 'Inner assignments should be avoided'
  
          c = b++; // common practice, don't flag
                   // even though technically an assignment to b
  
          for (int j = 0; j < 6; j += 2) { // common practice, don't flag
              a += j;
          }
      }
  
      public static void demoInputStreamIdiom(java.io.InputStream is) throws java.io.IOException
      {
          int b;
          while ((b = is.read()) != -1) // common idiom to avoid clumsy loop control logic don't flag
          {
              // work with b
          }
      }
  
      public static void demoNoBrace()
      {
          // code that doesn't contain braces around conditional code
          // results in a parse tree without SLISTs
          // no assignment should be flagged here
          int sum = 0;
  
          for (int i = 0; i < 3; i++)
              sum = sum + i;
  
          if (sum > 4)
              sum += 2;
          else if (sum < 2)
              sum += 1;
          else
              sum += 100;
  
          while (sum > 4)
              sum -= 1;
  
          do
              sum = sum + 1;
          while (sum < 6);
  
          ChildParent o = new ChildParent();
          Object t = null;
  
          while (o != null)
              t = o = o.getParent(); // violation, 'Inner assignments should be avoided'
      }
  
      @SuppressWarnings(value = "unchecked")
      public java.util.Collection<Object> allParams() {
          java.util.ArrayList params = new java.util.ArrayList();
          params.add("one");
          params.add("two");
          return params;
      }
  
      // Taken from JDK7 java.lang.Package src code.
      private static Manifest loadManifest(String fn) {
          try (FileInputStream fis = new FileInputStream(fn);
               JarInputStream jis = new JarInputStream(fis, false))
          {
              return jis.getManifest();
          } catch (IOException e)
          {
              return null;
          }
      }
  
      private static class ChildParent {
         public ChildParent getParent() {
             return this;
         }
     }
 }