public static ClrInstance[] TryResolveContinuations(ClrInstance continuation, CausalityContext context)
{
if (continuation.IsListOfObjects())
{
var result = new List <ClrInstance>();
int size = (int)continuation["_size"].Instance.ValueOrDefault !;
var items = continuation["_items"].Instance.Items;
for (int i = 0; i < size; i++)
{
var continuationItem = TryResolveContinuationInstance(items[i], context);
if (continuationItem != null)
{
result.Add(continuationItem);
}
return(result.ToArray());
}
}
var resolvedContinuation = TryResolveContinuationInstance(continuation, context);
if (resolvedContinuation != null)
{
return(new[] { resolvedContinuation });
}
return(Array.Empty <ClrInstance>());
}
public static ClrInstance?TryResolveContinuationInstance(ClrInstance continuation, CausalityContext context)
{
if (continuation.IsOfType(context.Registry.StandardTaskContinuationType))
{
return(continuation["m_task"].Instance);
}
if (continuation.IsTaskCompletionSource(context))
{
return(continuation["m_task"].Instance);
}
if (continuation.IsCompletedTaskContinuation(context))
{
// Continuation is a special sentinel instance that indicates that the task is completed.
return(null);
}
if (continuation.IsOfType(typeof(Action), context))
{
return(TryResolveContinuationForAction(continuation, context));
}
if (continuation.IsOfType(context.Registry.AwaitTaskContinuationIndex) || continuation.IsOfType(context.Registry.TaskIndex))
{
return(TryResolveContinuationForAction(continuation["m_action"].Instance, context));
}
// Need to compare by name since GetTypeByName does not work for the generic type during initialization
if (continuation.IsListOfObjects())
{
Contract.Assert(false, "Please call 'TryResolveContinuations' for a list of continuations.");
}
return(null);
}
