soot.jimple.toolkits.annotation.purity.PurityEdge Maven / Gradle / Ivy
package soot.jimple.toolkits.annotation.purity;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 2005 Antoine Mine
* %%
* 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%
*/
/**
* An edge in a purity graph. Each edge has a source PurityNode, a target PurityNode, and a field label (we use a String
* here). To represent an array element, the convention is to use the [] field label. Edges are mmuable and hashable. They
* compare equal only if they link equal nodes and have equal labels.
*
*/
public class PurityEdge {
private String field;
private PurityNode source, target;
private boolean inside;
PurityEdge(PurityNode source, String field, PurityNode target, boolean inside) {
this.source = source;
this.field = field;
this.target = target;
this.inside = inside;
}
public String getField() {
return field;
}
public PurityNode getTarget() {
return target;
}
public PurityNode getSource() {
return source;
}
public boolean isInside() {
return inside;
}
public int hashCode() {
return field.hashCode() + target.hashCode() + source.hashCode() + (inside ? 69 : 0);
}
public boolean equals(Object o) {
if (!(o instanceof PurityEdge)) {
return false;
}
PurityEdge e = (PurityEdge) o;
return source.equals(e.source) && field.equals(e.field) && target.equals(e.target) && inside == e.inside;
}
public String toString() {
if (inside) {
return source.toString() + " = " + field + " => " + target.toString();
} else {
return source.toString() + " - " + field + " -> " + target.toString();
}
}
}