public void Visit(ReturnStmnt returnStmnt)
{
if (hierarchy.Count == 0)
{
throw new CompilationError(ReturnOutsideFunction);
}
var func = hierarchy.Peek();
if (returnStmnt.Values.Count == 0)
{
if (func.RetType != null)
{
throw new CompilationError(ObjectRequired);
}
}
else if (returnStmnt.Values.Count == 1)
{
returnStmnt.Values[0].Accept(this);
var type = result.Pop();
if (func.RetType != null && func.RetType != type)
{
throw new Exception("Not implemented"); // type generaization or type conversion
}
else
{
func.RetType = type;
}
}
else
{
throw new Exception("Not implemented"); // tuple
}
}
public void Visit(ReturnStmnt returnStmnt)
{
var vals = returnStmnt.Values;
for (var i = 0; i < vals.Count; i += 1)
{
var val = vals[i];
Replace(ref val);
vals[i] = val;
}
}
public void Visit(ReturnStmnt returnStmnt)
{
var clone = new ReturnStmnt();
foreach (var val in returnStmnt.Values)
{
val.Accept(this);
clone.Values.Add(result.Pop());
}
result.Push(clone);
}
