soot.jimple.spark.fieldrw.FieldRWTag Maven / Gradle / Ivy
package soot.jimple.spark.fieldrw;
/*-
* #%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.SootField;
import soot.tagkit.Tag;
/** Implements a tag that holds a list of fields read or written by a call. */
public abstract class FieldRWTag implements Tag {
String fieldNames = new String();
FieldRWTag(Set fields) {
StringBuffer sb = new StringBuffer();
boolean first = true;
for (SootField field : fields) {
if (!first) {
sb.append("%");
}
first = false;
sb.append(field.getDeclaringClass().getName());
sb.append(":");
sb.append(field.getName());
}
fieldNames = sb.toString();
}
public abstract String getName();
public byte[] getValue() {
byte[] bytes = fieldNames.getBytes();
byte[] ret = new byte[bytes.length + 2];
ret[0] = (byte) (bytes.length / 256);
ret[1] = (byte) (bytes.length % 256);
System.arraycopy(bytes, 0, ret, 2, bytes.length);
return ret;
}
public String toString() {
return getName() + fieldNames;
}
}