soot.toDex.instructions.SparseSwitchPayload Maven / Gradle / Ivy
package soot.toDex.instructions;
/*-
* #%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.ArrayList;
import java.util.List;
import org.jf.dexlib2.builder.BuilderInstruction;
import org.jf.dexlib2.builder.SwitchLabelElement;
import org.jf.dexlib2.builder.instruction.BuilderSparseSwitchPayload;
import soot.Unit;
import soot.jimple.Stmt;
import soot.toDex.LabelAssigner;
/**
* The payload for a sparse-switch instruction.
*
* @see SwitchPayload
*/
public class SparseSwitchPayload extends SwitchPayload {
private int[] keys;
public SparseSwitchPayload(int[] keys, List targets) {
super(targets);
this.keys = keys;
}
@Override
public int getSize() {
// size = (identFieldSize+sizeFieldSize) + numTargets * (keyFieldSize+targetFieldSize)
return 2 + targets.size() * 4;
}
@Override
protected BuilderInstruction getRealInsn0(LabelAssigner assigner) {
List elements = new ArrayList();
for (int i = 0; i < keys.length; i++) {
elements.add(new SwitchLabelElement(keys[i], assigner.getOrCreateLabel((Stmt) targets.get(i))));
}
return new BuilderSparseSwitchPayload(elements);
}
}