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/*
* Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.vm.ci.hotspot;
import java.util.Arrays;
import jdk.vm.ci.code.Location;
import jdk.vm.ci.code.ReferenceMap;
/**
* Describes where the object references are in machine state, compliant with what HotSpot expects.
*/
public final class HotSpotReferenceMap extends ReferenceMap {
private final Location[] objects;
private final Location[] derivedBase;
private final int[] sizeInBytes;
private final int maxRegisterSize;
/**
*
* @param objects This array is now owned by this object and must not be mutated by the caller.
* @param derivedBase This array is now owned by this object and must not be mutated by the
* caller.
* @param sizeInBytes This array is now owned by this object and must not be mutated by the
* caller.
*/
@SuppressFBWarnings(value = "EI_EXPOSE_REP2", justification = "caller transfers ownership of `objects`, `derivedBase` and `sizeInBytes`")
public HotSpotReferenceMap(Location[] objects, Location[] derivedBase, int[] sizeInBytes, int maxRegisterSize) {
this.objects = objects;
this.derivedBase = derivedBase;
this.sizeInBytes = sizeInBytes;
this.maxRegisterSize = maxRegisterSize;
}
@Override
public int hashCode() {
throw new UnsupportedOperationException();
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof HotSpotReferenceMap) {
HotSpotReferenceMap that = (HotSpotReferenceMap) obj;
if (sizeInBytes == that.sizeInBytes && maxRegisterSize == that.maxRegisterSize && Arrays.equals(objects, that.objects) && Arrays.equals(derivedBase, that.derivedBase)) {
return true;
}
}
return false;
}
@Override
public String toString() {
return Arrays.toString(objects);
}
}