@Override
protected void flowThrough(Object in, Object node, Object out) {
// perform flow from in to out, through node
FlowSet inSet = (FlowSet) in, outSet = (FlowSet) out;
Unit unit = (Unit) node;
// System.out.println(inSet);
// System.out.println("=== " + unit);
// copy inSet to outSet
inSet.copy(outSet);
if (unit instanceof Stmt) {
Stmt s = (Stmt) unit;
if (exactProceedSet.contains(s)) {
// exact proceed
outSet.add(EXACT);
outSet.remove(NONE);
outSet.remove(NON_EXACT);
} else if (nonExactProceedSet.contains(s)) {
// non-exact proceed
if (!inSet.contains(EXACT)) {
outSet.add(NON_EXACT);
outSet.remove(NONE);
}
} else {
// no proceed
if (!inSet.contains(NON_EXACT) && !inSet.contains(EXACT)) outSet.add(NONE);
}
}
// System.out.println(outSet);
}
/*
* (non-Javadoc)
*
* @see soot.toolkits.scalar.FlowAnalysis#flowThrough(java.lang.Object, java.lang.Object, java.lang.Object)
*/
@Override
protected void flowThrough(FlowSet source, Unit unit, FlowSet dest) {
if (unit instanceof AssignStmt) {
AssignStmt assignment = (AssignStmt) unit;
FeatureTag tag = (FeatureTag) assignment.getTag(FeatureTag.FEAT_TAG_NAME);
IFeatureRep featureRep = tag.getFeatureRep();
if (featureRep.belongsToConfiguration(configuration)) {
kill(source, assignment, dest);
gen(dest, assignment);
} else {
source.copy(dest);
}
} else {
source.copy(dest);
}
}
/*
* (non-Javadoc)
*
* @see soot.toolkits.scalar.AbstractFlowAnalysis#copy(java.lang.Object, java.lang.Object)
*/
@Override
protected void copy(FlowSet source, FlowSet dest) {
source.copy(dest);
}
@Override
protected void copy(Object source, Object dest) {
// copy from source to dest
FlowSet srcSet = (FlowSet) source, destSet = (FlowSet) dest;
srcSet.copy(destSet);
}