// TODO: I may want to change the requirement that DuckValue needs a
// class instances, same with interface instance
public DuckValue(ClassInstance obj, InterfaceDefn i)
: base(obj, i)
{
HeronType t = obj.Type;
foreach (FunctionDefn f in i.GetAllMethods())
{
if (!obj.SupportsFunction(f))
{
throw new Exception("Failed to duck-type, object of type " + t.GetName() + " does not match interface " + i.GetName());
}
}
}
