2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
6 * The Java Pathfinder core (jpf-core) platform is licensed under the
7 * Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0.
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 package gov.nasa.jpf.jvm.bytecode;
20 import gov.nasa.jpf.JPFException;
21 import gov.nasa.jpf.vm.Instruction;
22 import gov.nasa.jpf.vm.StackFrame;
23 import gov.nasa.jpf.vm.ThreadInfo;
27 * Access jump table by index and jump
30 public class TABLESWITCH extends SwitchInstruction implements gov.nasa.jpf.vm.bytecode.TableSwitchInstruction {
34 public TABLESWITCH(int defaultTarget, int min, int max){
35 super(defaultTarget, (max - min +1));
49 public void setTarget (int value, int target){
52 if (i>=0 && i<targets.length){
55 throw new JPFException("illegal tableswitch target: " + value);
60 protected Instruction executeConditional (ThreadInfo ti){
61 StackFrame frame = ti.getModifiableTopFrame();
63 int value = frame.pop();
67 if (i>=0 && i<targets.length){
75 // <2do> this is BAD - we should compute the target insns just once
76 return mi.getInstructionAt(pc);
81 public int getLength() {
82 return 13 + 2*(matches.length); // <2do> NOT RIGHT: padding!!
86 public int getByteCode () {
91 public void accept(JVMInstructionVisitor insVisitor) {
92 insVisitor.visit(this);