soot.jimple.toolkits.pointer.Union Maven / Gradle / Ivy
package soot.jimple.toolkits.pointer;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 2003 Ondrej Lhotak
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This program 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import java.util.Set;
import soot.PointsToSet;
import soot.jimple.ClassConstant;
/** A generic interface to some set of runtime objects computed by a pointer analysis. */
public abstract class Union implements PointsToSet {
/**
* Adds all objects in s into this union of sets, returning true if this union was changed.
*/
public abstract boolean addAll(PointsToSet s);
public static boolean hasNonEmptyIntersection(PointsToSet s1, PointsToSet s2) {
if (s1 == null) {
return false;
}
if (s1 instanceof Union) {
return s1.hasNonEmptyIntersection(s2);
}
if (s2 == null) {
return false;
}
return s2.hasNonEmptyIntersection(s1);
}
public Set possibleStringConstants() {
return null;
}
public Set possibleClassConstants() {
return null;
}
}