private void @new(string key, nutility.Tree <string, InputReplLevel> tree)
{
if (reserved.ContainsKey(key) || key.StartsWith("?"))
{
Writer.WriteLine($"For clarity, please choose another id because '{key}' is reserved.");
}
else if (tree.ContainsKey(key))
{
Writer.WriteLine($"{key} already identifies an existing input class or input instance.");
}
else
{
InputClassReplLevel current_class = tree.Value as InputClassReplLevel;
if (current_class == null)
{
Writer.WriteLine($"A new input instance is currently supported only on input class levels.");
}
else
{
var new_instance = Activator.CreateInstance(current_class.InputClass);
var new_level = new nutility.InputInstanceReplLevel(key, new_instance);
tree[new_level.ID] = new nutility.Tree <string, nutility.InputReplLevel> {
Value = new_level, Parent = tree
};
Writer.WriteLine($"\t{key} ({current_class.InputClass.FullName})");
}
}
}
private void delete(string key, nutility.Tree <string, InputReplLevel> tree)
{
var instance_level = tree.ContainsKey(key) ? (tree[key].Value as InputInstanceReplLevel) : null;
if (instance_level != null)
{
var instance = instance_level.InputInstance;
var classname = instance?.GetType().FullName;
IDisposable disposable = instance as IDisposable;
if (disposable != null)
{
Writer.WriteLine($"\t{key} ({classname}) disposing...");
disposable.Dispose();
Writer.WriteLine($"\t{key} ({classname}) disposed.");
}
tree.Remove(key);
Writer.WriteLine($"\t{key} ({classname}) removed.");
}
else
{
Writer.WriteLine($"{key} not found among existing instances at current input level.");
}
}