1 /*
   2  * Copyright (c) 2014, 2015, 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 package jdk.vm.ci.hotspot;
  24 
  25 import jdk.vm.ci.meta.*;
  26 
  27 public final class HotSpotSentinelConstant extends Value implements JavaConstant, VMConstant {
  28 
  29     public HotSpotSentinelConstant(JavaKind kind) {
  30         super(LIRKind.reference(kind));
  31     }
  32 
  33     public JavaKind getJavaKind() {
  34         return (JavaKind) getLIRKind().getPlatformKind();
  35     }
  36 
  37     @Override
  38     public boolean isNull() {
  39         return true;
  40     }
  41 
  42     @Override
  43     public boolean isDefaultForKind() {
  44         return true;
  45     }
  46 
  47     @Override
  48     public Object asBoxedPrimitive() {
  49         throw new IllegalArgumentException();
  50     }
  51 
  52     @Override
  53     public int asInt() {
  54         throw new IllegalArgumentException();
  55     }
  56 
  57     @Override
  58     public boolean asBoolean() {
  59         throw new IllegalArgumentException();
  60     }
  61 
  62     @Override
  63     public long asLong() {
  64         throw new IllegalArgumentException();
  65     }
  66 
  67     @Override
  68     public float asFloat() {
  69         throw new IllegalArgumentException();
  70     }
  71 
  72     @Override
  73     public double asDouble() {
  74         throw new IllegalArgumentException();
  75     }
  76 
  77     @Override
  78     public String toString() {
  79         return JavaConstant.toString(this);
  80     }
  81 
  82     @Override
  83     public String toValueString() {
  84         return "sentinel";
  85     }
  86 
  87     @Override
  88     public int hashCode() {
  89         return 13;
  90     }
  91 
  92     @Override
  93     public boolean equals(Object o) {
  94         return o instanceof HotSpotSentinelConstant;
  95     }
  96 }