soot.validation.OuterClassValidator Maven / Gradle / Ivy
package soot.validation;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 1997 - 2018 Raja Vallée-Rai and others
* %%
* 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.HashSet;
import java.util.List;
import java.util.Set;
import soot.SootClass;
/**
* Validates classes to make sure that the outer class chain is not recursive
*
* @author Steven Arzt
*/
public enum OuterClassValidator implements ClassValidator {
INSTANCE;
public static OuterClassValidator v() {
return INSTANCE;
}
@Override
public void validate(SootClass sc, List exceptions) {
Set outerClasses = new HashSet();
SootClass curClass = sc;
while (curClass != null) {
if (!outerClasses.add(curClass)) {
exceptions.add(new ValidationException(curClass, "Circular outer class chain"));
break;
}
curClass = curClass.hasOuterClass() ? curClass.getOuterClass() : null;
}
}
@Override
public boolean isBasicValidator() {
return true;
}
}