/*
* 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;
public class ReadInstruction extends Instruction {
protected final Object myVar;
protected int myIndex;
public ReadInstruction(Object var) {
myVar = var;
}
public ReadInstruction(String ruleNodeReference, Object var) {
super(ruleNodeReference);
myVar = var;
}
public Object getVariable() {
return myVar;
}
public int getVariableIndex() {
return myIndex;
}
@Override
public void buildCaches() {
super.buildCaches();
myIndex = getProgram().getVariableIndex(myVar);
}
@Override
public String commandPresentation() {
return "read " + myVar;
}
}