public static T Clone <T>(this IFormatter formatter, object graph)
{
object?item = formatter.Clone(graph);
if (item is IDictionary dictionary)
{
return(dictionary.Convert <T>());
}
return((T)item);
}
/// <summary>
/// Make sure we don't return direct references to mutable objects within the model
/// </summary>
protected virtual void EnsureNoMutableReferences(ref object result, IOperationWithResult operation)
{
if (result != null)
{
bool operationIsResponsible = operation != null && operation.ResultIsSafe;
if (!operationIsResponsible && !result.IsImmutable())
{
result = _resultFormatter.Clone(result);
}
}
}
/// <summary>
/// Apply the command to the food taster. If it succeeds, apply to the real model.
/// </summary>
/// <param name="command"></param>
/// <returns></returns>
public override object ExecuteCommand(Command command)
{
try
{
command.PrepareStub(_foodTaster);
command.ExecuteStub(_foodTaster); //outofmemory,commandaborted, unhandled user
}
catch (CommandAbortedException)
{
throw;
}
catch (OutOfMemoryException)
{
throw;
}
catch (Exception ex)
{
_foodTaster = _formatter.Clone(_model); //reset
throw new CommandAbortedException("Royal taster died of food poisoning, see inner exception for details", ex);
}
return(base.ExecuteCommand(command));
}
public RoyalFoodTaster(EngineConfiguration config, Model model)
: base(config, model)
{
_formatter = config.CreateFormatter(FormatterUsage.Snapshot);
_foodTaster = _formatter.Clone(Model);
}
public RoyalFoodTaster(EngineConfiguration config, Model model)
: base(config, model)
{
_formatter = config.CreateFormatter(FormatterUsage.Snapshot);
_foodTaster = _formatter.Clone(_model);
}
