package mockit.asm.constantPool;
   
   import static mockit.asm.jvmConstants.ConstantPoolTypes.HANDLE_BASE;
   
   import edu.umd.cs.findbugs.annotations.NonNull;
   
   import mockit.asm.util.MethodHandle;
   
   import org.checkerframework.checker.index.qual.NonNegative;
  
  public final class MethodHandleItem extends Item {
      private MethodHandle methodHandle;
  
      public MethodHandleItem(@NonNegative int index) {
          super(index);
          type = HANDLE_BASE;
      }
  
      MethodHandleItem(@NonNegative int index, @NonNull MethodHandleItem item) {
          super(index, item);
          methodHandle = item.methodHandle;
      }
  
      /**
       * Sets the type and hash code of this method handle item.
       */
      public void set(@NonNull MethodHandle methodHandle) {
          this.methodHandle = methodHandle;
          type = HANDLE_BASE;
          setHashCode(methodHandle.hashCode());
          type = HANDLE_BASE + methodHandle.tag;
      }
  
      @Override
      boolean isEqualTo(@NonNull Item item) {
          return ((MethodHandleItem) item).methodHandle.equals(methodHandle);
      }
  }