public void AddExpressionDependingOnMe(IReactiveExpression reactiveExpression)
{
if (_expressionsDependingOnMe == null)
{
_expressionsDependingOnMe = new List <IReactiveExpression>();
}
_expressionsDependingOnMe.Add(reactiveExpression);
}
internal IReactive[] UpdateExpressionDependencies(IReactive[] oldDependencies, IReactiveExpression reactiveExpression)
{
if (_nextDependencyIndex < _currentDependencies.Length)
{
if (_newDependencies != null)
{
throw new Exception("_newDependencies unexpectedly initialized when _nextDependencyIndex is before the end");
}
_newDependencies = new List <IReactive>();
for (int i = 0; i < _nextDependencyIndex; ++i)
{
_newDependencies.Add(_currentDependencies[i]);
}
}
IReactive[] newDependenciesArray = _newDependencies !.ToArray();
var currDependenciesSet = new HashSet <IReactive>();
foreach (IReactive currDependency in oldDependencies)
{
currDependenciesSet.Add(currDependency);
}
var newDependenciesSet = new HashSet <IReactive>();
foreach (IReactive newDependency in newDependenciesArray)
{
newDependenciesSet.Add(newDependency);
}
// TODO: Catch exceptions here to ensure in consistent state
foreach (IReactive removeDependency in currDependenciesSet.Except(newDependenciesSet))
{
removeDependency.RemoveExpressionDependingOnMe(reactiveExpression);
}
foreach (IReactive addDependency in newDependenciesArray.Except(currDependenciesSet))
{
addDependency.AddExpressionDependingOnMe(reactiveExpression);
}
return(newDependenciesArray);
}
public void RemoveExpressionDependingOnMe(IReactiveExpression reactiveExpression)
{
_expressionsDependingOnMe?.Remove(reactiveExpression);
}
