Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/LocationSet.java @ 21556:48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 27 May 2015 00:36:16 +0200 |
parents | 3d0116ec99c5 |
children | f5b549811bac |
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/* * 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.jvmci.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 isEmpty() { return firstLocation == null; } public boolean isAny() { return firstLocation != null && firstLocation.isAny(); } public void add(LocationIdentity location) { if (this.isAny()) { return; } else if (location.isAny()) { firstLocation = location; list = null; } else if (location.isImmutable()) { return; } else { assert location.isMutable() && location.isSingle(); 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.isSingle(); assert locationIdentity.isMutable(); if (LocationIdentity.any().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.isAny()) { return "ANY"; } else if (this.isEmpty()) { return "EMPTY"; } else { List<LocationIdentity> copyAsList = getCopyAsList(); return Arrays.toString(copyAsList.toArray(new LocationIdentity[0])); } } }