/// <summary>
/// Indicate that the given variable was read. May cause other objects to become dependend on the given variable.
/// </summary>
public void WasRead(object source)
{
if (!Enabled)
{
return;
}
if (DependentsEvaluating.Count != 0)
{
var weakDependent = DependentsEvaluating.Peek().Dependency;
ReactiveManager.GetNode(source).Add(weakDependent);
}
}
/// <summary>
/// Evaluation of reactive nodes must pass through this method.
/// </summary>
public T Evaluate <T>(IListener dependent, Func <T> func)
{
if (!Enabled)
{
return(func());
}
WasRead(dependent);
var node = ReactiveManager.GetNode(dependent);
var dependentReference = node.GetDependency(dependent);
DependentsEvaluating.Push(dependentReference);
var result = func();
DependentsEvaluating.Pop();
return(result);
}
/// <summary>
/// Evaluation of reactive nodes must pass through this method.
/// </summary>
public T Evaluate <T>(IListener dependent, Func <T> func)
{
if (!Enabled)
{
return(func());
}
WasRead(dependent);
DependentsEvaluating.Push(new Evaluation(dependent));
try
{
return(func());
}
finally
{
DependentsEvaluating.Pop();
}
}
