@Override
public Object visitFunction(Function fcn) {
if (fcn.isSketchHarness()
|| fcn.getSpecification() != null
|| specFcns.contains(fcn.getName())
|| !fcn.isStatic()) {
return fcn;
} else {
this.parametersToInout = new TypedHashSet<String>();
this.inputParameters = new Vector<String>();
for (Parameter param : fcn.getParams()) {
if (!param.isParameterOutput()) {
this.inputParameters.add(param.getName());
}
}
super.visitFunction(fcn);
if (parametersToInout.isEmpty()) {
return fcn;
} else {
Vector<Parameter> newParams = new Vector<Parameter>();
for (Parameter param : fcn.getParams()) {
if (parametersToInout.contains(param.getName())) {
newParams.add(new Parameter(param, param.getType(), param.getName(), Parameter.REF));
} else {
newParams.add(param);
}
}
return fcn.creator().params(newParams).create();
}
}
}
public Object visitExprFunCall(ExprFunCall efc) {
Function fun = nres.getFun(efc.getName());
List<Expression> newParams = new ArrayList<Expression>(fun.getParams().size());
Map<Expression, Integer> pset = new HashMap<Expression, Integer>();
Iterator<Expression> eit = efc.getParams().iterator();
for (Parameter p : fun.getParams()) {
Expression actual = eit.next();
{
ExprVar ev = getBaseVar(actual);
if (ev != null && pset.containsKey(ev)) {
pset.put(ev, pset.get(ev) + 1);
} else {
pset.put(ev, 1);
}
}
}
boolean hasChanged = false;
eit = efc.getParams().iterator();
Map<String, Expression> repl = new HashMap<String, Expression>();
VarReplacer vr = new VarReplacer(repl);
for (Parameter p : fun.getParams()) {
Expression actual = eit.next();
repl.put(p.getName(), actual);
if (p.isParameterOutput()) {
ExprVar ev = getBaseVar(actual);
if (ev == null) {
newParams.add(actual);
continue;
}
if (ev == FromHeap) {
addTemp(p, actual, newParams, vr);
hasChanged = true;
continue;
}
int cnt = pset.get(ev);
if (cnt > 1) {
addTemp(p, actual, newParams, vr);
hasChanged = true;
} else {
newParams.add(actual);
}
} else {
newParams.add(actual);
}
}
if (!hasChanged) addStatement(new StmtExpr(efc));
else addStatement(new StmtExpr(new ExprFunCall(efc, efc.getName(), newParams)));
addStatements(after);
after.clear();
return null;
}