soot.dexpler.DexInnerClassParser Maven / Gradle / Ivy
package soot.dexpler;
/*-
* #%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 soot.tagkit.InnerClassTag;
/**
* Utility class for handling inner/outer class references in Dalvik
*
* @author Steven Arzt
*
*/
public class DexInnerClassParser {
/**
* Gets the name of the outer class (in Soot notation) from the given InnerClassTag
*
* @param icTag
* The InnerClassTag from which to read the name of the outer class
* @return The nam,e of the outer class (in Soot notation) as specified in the tag. If the specification is invalid, null
* is returned.
*/
public static String getOuterClassNameFromTag(InnerClassTag icTag) {
String outerClass;
if (icTag.getOuterClass() == null) { // anonymous and local classes
String inner = icTag.getInnerClass().replaceAll("/", ".");
if (inner.contains("$-")) {
/*
* This is a special case for generated lambda classes of jack and jill compiler. Generated lambda classes may
* contain '$' which do not indicate an inner/outer class separator if the '$' occurs after a inner class with a name
* starting with '-'. Thus we search for '$-' and anything after it including '-' is the inner classes name and
* anything before it is the outer classes name.
*/
outerClass = inner.substring(0, inner.indexOf("$-"));
} else if (inner.contains("$")) {
// remove everything after the last '$' including the last '$'
outerClass = inner.substring(0, inner.lastIndexOf('$'));
} else {
// This tag points nowhere
outerClass = null;
}
} else {
outerClass = icTag.getOuterClass().replaceAll("/", ".");
}
return outerClass;
}
}