1 /*
   2  * Copyright (c) 2014, 2014, 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 org.graalvm.compiler.hotspot.word;
  24 
  25 import static org.graalvm.compiler.hotspot.word.HotSpotOperation.HotspotOpcode.POINTER_EQ;
  26 import static org.graalvm.compiler.hotspot.word.HotSpotOperation.HotspotOpcode.POINTER_NE;
  27 import static org.graalvm.compiler.hotspot.word.HotSpotOperation.HotspotOpcode.TO_METHOD_POINTER;
  28 
  29 import org.graalvm.compiler.word.Pointer;
  30 
  31 /**
  32  * Marker type for a metaspace pointer to a method.
  33  */
  34 public abstract class MethodPointer extends MetaspacePointer {
  35 
  36     @HotSpotOperation(opcode = POINTER_EQ)
  37     public abstract boolean equal(KlassPointer other);
  38 
  39     @HotSpotOperation(opcode = POINTER_NE)
  40     public abstract boolean notEqual(KlassPointer other);
  41 
  42     @HotSpotOperation(opcode = TO_METHOD_POINTER)
  43     public static native MethodPointer fromWord(Pointer pointer);
  44 }