/*
* Copyright 2003-2011 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 jetbrains.mps.lang.dataFlow.framework.instructions;
import jetbrains.mps.lang.dataFlow.framework.ProgramState;
import jetbrains.mps.lang.dataFlow.framework.StructuralProgramBuilder.Position;
import java.util.List;
public class IfJumpInstruction extends Instruction {
protected int myJumpTo;
public IfJumpInstruction() {
}
public IfJumpInstruction(String ruleNodeReference) {
super(ruleNodeReference);
}
public int getJumpTo() {
return myJumpTo;
}
public void setJumpTo(int jumpTo) {
myJumpTo = jumpTo;
}
public void updateJumps(int jumpTo) {
getProgram().get(jumpTo).removeJump(this);
getProgram().get(myJumpTo).addJump(this);
}
public void setJumpTo(final Position position) {
myJumpTo = position.getPosition();
}
@Override
public void buildCaches() {
super.buildCaches();
getProgram().get(myJumpTo).addJump(this);
}
@Override
public List<ProgramState> succ(ProgramState s) {
List<ProgramState> result = super.succ(s);
result.add(new ProgramState(getProgram().get(myJumpTo), s.isReturnMode()));
return result;
}
@Override
public String commandPresentation() {
return "ifjump " + myJumpTo;
}
}