// Filter //
public static IObservableFilter <T> Filter <T>(NotifyConfiguratorFactory <TClass, ObservableFilterPropertyHolder <T> > configurator, [CallerMemberName] string name = null)
{
var c = PropertyCache <TClass> .GetByHolder <ObservableFilterPropertyHolder <T> >(name,
n => configurator(new NotifyConfigurator <TClass, ObservableFilterPropertyHolder <T> >().Init((target, filter) => filter.OnTriggered()))
.Compile(n));
return(new ObservableFilterPropertyHolder <T>(c));
}
// TRIGGER
public static ITrigger Trigger(NotifyConfiguratorFactory <TClass, NotifyTrigger> configurator, [CallerMemberName] string name = null)
{
var c =
PropertyCache <TClass> .GetByHolder <NotifyTrigger>(name,
n => configurator(new NotifyConfigurator <TClass, NotifyTrigger>())
.Compile(n)
);
return(new NotifyTrigger(c));
}
/***********
* COMMAND *
***********/
public static ICommand Command(NotifyConfiguratorFactory <TClass, CommandPropertyHolder> configurator, [CallerMemberName] string name = null)
{
#if DEBUG
Debug.Assert(typeof(TClass).GetProperty(name) != null, $"{name} is not a property of " + typeof(TClass).Name + " (did you forget {get;} ?)");
#endif
var c = PropertyCache <TClass> .GetByHolder <CommandPropertyHolder>(name,
n => configurator(new NotifyConfigurator <TClass, CommandPropertyHolder>())
.Compile(n));
return(new CommandPropertyHolder(c));
}
public static PropertyHolder <T> Property <T>(NotifyConfiguratorFactory <TClass, PropertyHolder <T> > configurator, [CallerMemberName] string name = null)
{
// TODO : benchmark this and see if just storing uncompiled whould perform better :
var activator =
PropertyCache <TClass> .GetByHolder <PropertyHolder <T> >(name,
n => configurator(new NotifyConfigurator <TClass, PropertyHolder <T> >())
.Compile(n)
);
return(new PropertyHolder <T>(activator));
}
private static bool CheckDependencies(Todo todo, ICollection <string> done, Queue <Todo> todoQueue)
{
var a = PropertyCache <TClass> .GetByHolder(todo.MemberInfo.Name);
// var p = todo.ConfiguratorEntry;
if (a.DependsOn
.Where(d => !done.Contains(d))
.Any(d => todoQueue.Any(i => i.Name == d))
)
{
todoQueue.Enqueue(todo);
return(false);
}
done.Add(a.PropertyName);
return(true);
}
private static Action <TClass> CreateActivatorA()
{
var todoList = new Queue <Todo>();
var done = new List <string>();
var type = typeof(TClass);
while (true)
{
// var getByHolder = typeof(PropertyCache<>).MakeGenericType(type).GetMethod("GetByHolder",new []{typeof(string)});
foreach (var mi in type.GetMembers(BindingFlags.DeclaredOnly | BindingFlags.Instance |
BindingFlags.NonPublic | BindingFlags.Public))
{
switch (mi)
{
case FieldInfo fieldInfo:
if (!typeof(IChildObject).IsAssignableFrom(fieldInfo.FieldType))
{
continue;
}
if (mi.Name.Contains("k__BackingField"))
{
continue;
}
var a = PropertyCache <TClass> .GetByHolder(mi.Name);
//var p = (ConfiguratorEntry) getByHolder.Invoke(null,new object[]{mi.Name});
todoList.Enqueue(new Todo {
MemberInfo = mi, Name = a.PropertyName, Activator = a
});
break;
case PropertyInfo propertyInfo:
//if (propertyInfo.CanWrite) continue;
if (propertyInfo.GetMethod.IsAbstract)
{
continue;
}
if (typeof(IChildObject).IsAssignableFrom(propertyInfo.PropertyType))
{
todoList.Enqueue(new Todo {
MemberInfo = mi, Name = mi.Name
});
}
else if (typeof(ICommand).IsAssignableFrom(propertyInfo.PropertyType))
{
todoList.Enqueue(new Todo {
MemberInfo = mi, Name = mi.Name
});
}
break;
}
}
type = type.BaseType;
if (type != null && typeof(INotifyPropertyChangedWithHelper).IsAssignableFrom(type))
{
var t = typeof(H <>);
var t1 = t.MakeGenericType(type);
var p = t1.GetProperty("HasActivator", BindingFlags.NonPublic | BindingFlags.Static);
if (p != null)
{
var hasActivator = (bool)p.GetValue(null);
if (hasActivator)
{
break;
}
}
else
{
}
}
else
{
break;
}
}
Action <TClass> activator = null;
while (todoList.TryDequeue(out var todo))
{
switch (todo.MemberInfo)
{
case FieldInfo fieldInfo:
if (!typeof(IChildObject).IsAssignableFrom(fieldInfo.FieldType))
{
continue;
}
if (!CheckDependencies(todo, done, todoList))
{
continue;
}
activator += t =>
{
((IChildObject)fieldInfo.GetValue(t))
.Parent = t;
};
break;
case PropertyInfo propertyInfo:
if (propertyInfo.CanWrite)
{
continue;
}
if (typeof(IChildObject).IsAssignableFrom(propertyInfo.PropertyType))
{
if (!CheckDependencies(todo, done, todoList))
{
continue;
}
activator += t =>
{
var pi = propertyInfo;
var value = propertyInfo.GetValue(t);
if (value is IChildObject child)
{
child.Parent = t;
}
else
{
}
};
}
else if (typeof(ICommand).IsAssignableFrom(propertyInfo.PropertyType))
{
if (!CheckDependencies(todo, done, todoList))
{
continue;
}
activator += t =>
{
if (propertyInfo.GetValue(t) is IChildObject child)
{
child.Parent = t;
}
};
}
break;
}
}
return(activator);
}
