1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package jdk.internal.nicl.types;
  25 
  26 import jdk.internal.nicl.Platform;
  27 
  28 public class Pointer implements Type {
  29     Type pointee;
  30 
  31     public Pointer(Type pointee) {
  32         this.pointee = pointee;
  33     }
  34 
  35     public Type getPointeeType() {
  36         return pointee;
  37     }
  38 
  39     @Override
  40     public long getSize() {
  41         return Platform.getInstance().getABI().definedSize('p');
  42     }
  43 
  44     @Override
  45     public int hashCode() {
  46         return 0x80000000 | pointee.hashCode();
  47     }
  48 
  49     @Override
  50     public boolean equals(Object o) {
  51         if (!(o instanceof jdk.internal.nicl.types.Pointer)) {
  52             return false;
  53         }
  54         jdk.internal.nicl.types.Pointer other = (jdk.internal.nicl.types.Pointer) o;
  55 
  56         if (pointee == null) {
  57             return other.pointee == null;
  58         }
  59 
  60         return pointee.equals(other.pointee);
  61     }
  62 
  63     @Override
  64     public String toString() {
  65         return (pointee == null) ? "p" : "p:" + pointee.toString();
  66     }
  67 }