org.jetbrains.java.decompiler.code.SwitchInstruction Maven / Gradle / Ivy
/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.java.decompiler.code;
/*
* opc_tableswitch, lookupswitch
*/
public class SwitchInstruction extends Instruction {
private int[] destinations;
private int[] values;
private int defaultdest;
public SwitchInstruction() {
}
public void initInstruction(InstructionSequence seq) {
int pref = (opcode == CodeConstants.opc_tableswitch ? 3 : 2);
int len = this.getOperands().length - pref;
defaultdest = seq.getPointerByRelOffset(this.getOperand(0));
int low = 0;
if (opcode == CodeConstants.opc_lookupswitch) {
len /= 2;
}
else {
low = this.getOperand(1);
}
destinations = new int[len];
values = new int[len];
for (int i = 0, k = 0; i < len; i++, k++) {
if (opcode == CodeConstants.opc_lookupswitch) {
values[i] = this.getOperand(pref + k);
k++;
}
else {
values[i] = low + k;
}
destinations[i] = seq.getPointerByRelOffset(this.getOperand(pref + k));
}
}
public SwitchInstruction clone() {
SwitchInstruction newinstr = (SwitchInstruction)super.clone();
newinstr.defaultdest = defaultdest;
newinstr.destinations = destinations.clone();
newinstr.values = values.clone();
return newinstr;
}
public int[] getDestinations() {
return destinations;
}
public void setDestinations(int[] destinations) {
this.destinations = destinations;
}
public int getDefaultdest() {
return defaultdest;
}
public void setDefaultdest(int defaultdest) {
this.defaultdest = defaultdest;
}
public int[] getValues() {
return values;
}
public void setValues(int[] values) {
this.values = values;
}
}