Mercurial > hg > truffle
changeset 19827:5d624638e8a5
Add LocationSet file.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Thu, 12 Mar 2015 23:49:02 +0100 |
parents | e89ca1d8ab5a |
children | 79682c7f2ec7 |
files | graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/LocationSet.java |
diffstat | 1 files changed, 137 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/LocationSet.java Thu Mar 12 23:49:02 2015 +0100 @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2015, 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 com.oracle.graal.nodes.cfg; + +import java.util.*; + +import com.oracle.graal.api.meta.*; + +public class LocationSet { + private LocationIdentity firstLocation; + private List<LocationIdentity> list; + + public LocationSet() { + list = null; + } + + public LocationSet(LocationSet other) { + this.firstLocation = other.firstLocation; + if (other.list != null && other.list.size() > 0) { + list = new ArrayList<>(other.list); + } + } + + private void initList() { + if (list == null) { + list = new ArrayList<>(4); + } + } + + public boolean isKillNone() { + return firstLocation == null; + } + + public boolean isKillAll() { + return LocationIdentity.ANY_LOCATION.equals(firstLocation); + } + + public void add(LocationIdentity location) { + if (this.isKillAll()) { + return; + } else if (LocationIdentity.ANY_LOCATION.equals(location)) { + firstLocation = location; + list = null; + } else { + if (firstLocation == null) { + firstLocation = location; + } else if (location.equals(firstLocation)) { + return; + } else { + initList(); + for (int i = 0; i < list.size(); ++i) { + LocationIdentity value = list.get(i); + if (location.equals(value)) { + return; + } + } + list.add(location); + } + } + } + + public void addAll(LocationSet other) { + if (other.firstLocation != null) { + add(other.firstLocation); + } + List<LocationIdentity> otherList = other.list; + if (otherList != null) { + for (LocationIdentity l : otherList) { + add(l); + } + } + } + + public boolean contains(LocationIdentity locationIdentity) { + assert locationIdentity != null; + assert !locationIdentity.equals(LocationIdentity.ANY_LOCATION); + assert locationIdentity.isMutable(); + if (LocationIdentity.ANY_LOCATION.equals(firstLocation)) { + return true; + } + if (locationIdentity.equals(firstLocation)) { + return true; + } + if (list != null) { + for (int i = 0; i < list.size(); ++i) { + LocationIdentity value = list.get(i); + if (locationIdentity.equals(value)) { + return true; + } + } + } + return false; + } + + public List<LocationIdentity> getCopyAsList() { + ArrayList<LocationIdentity> result = new ArrayList<>(); + if (firstLocation != null) { + result.add(firstLocation); + } + if (list != null) { + result.addAll(list); + } + return result; + } + + @Override + public String toString() { + if (this.isKillAll()) { + return "KILLALL"; + } else if (this.isKillNone()) { + return "KILLNONE"; + } else { + List<LocationIdentity> copyAsList = getCopyAsList(); + return Arrays.toString(copyAsList.toArray(new LocationIdentity[0])); + } + } +}