public static async Task ForEach <T>(this ITaskEnumerable <T> source, Action <T, ITaskForEachController> action)
{
if (source == null || action == null)
{
return;
}
var controller = new TaskForEachController();
using (var iterator = source.GetEnumerator())
{
while (iterator.MoveNext())
{
if (controller.CheckContinue())
{
continue;
}
var item = await iterator.Current;
action(await iterator.Current, controller);
if (controller.CheckBreak())
{
break;
}
}
}
}
public IEnumerator <Task <TResult> > GetEnumerator()
{
using (var iterator = source.GetEnumerator())
{
var continuation = this.continuation;
while (iterator.MoveNext())
{
yield return(continuation(iterator.Current));
}
}
}