1 /* 2 * Copyright (c) 2011, 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.internal.jvmci.code; 24 25 import jdk.internal.jvmci.meta.*; 26 import static jdk.internal.jvmci.code.ValueUtil.*; 27 28 /** 29 * Represents lock information in the debug information. 30 */ 31 public final class StackLockValue implements JavaValue { 32 33 private JavaValue owner; 34 private StackSlotValue slot; 35 private final boolean eliminated; 36 37 public StackLockValue(JavaValue object, StackSlotValue slot, boolean eliminated) { 38 this.owner = object; 39 this.slot = slot; 40 this.eliminated = eliminated; 41 } 42 43 public JavaValue getOwner() { 44 return owner; 45 } 46 47 public void setOwner(JavaValue newOwner) { 48 this.owner = newOwner; 49 } 50 51 public Value getSlot() { 52 return slot; 53 } 54 55 public boolean isEliminated() { 56 return eliminated; 57 } 58 59 @Override 60 public String toString() { 61 return "monitor[" + owner + (slot != null ? ", " + slot : "") + (eliminated ? ", eliminated" : "") + "]"; 62 } 63 64 @Override 65 public int hashCode() { 66 final int prime = 43; 67 int result = super.hashCode(); 68 result = prime * result + (eliminated ? 1231 : 1237); 69 result = prime * result + owner.hashCode(); 70 result = prime * result + slot.hashCode(); 71 return result; 72 } 73 74 @Override 75 public boolean equals(Object obj) { 76 if (obj instanceof StackLockValue) { 77 StackLockValue other = (StackLockValue) obj; 78 return super.equals(obj) && eliminated == other.eliminated && owner.equals(other.owner) && slot.equals(other.slot); 79 } 80 return false; 81 } 82 83 public void setSlot(StackSlotValue stackSlot) { 84 assert slot == null || (isVirtualStackSlot(slot) && (slot.equals(stackSlot) || isStackSlot(stackSlot))) : String.format("Can not set slot for %s to %s", this, stackSlot); 85 slot = stackSlot; 86 } 87 }