static IEnumerator FetchAssetBundle(WWW www, UtyRx.IObserver <AssetBundle> observer, UtyRx.IProgress <float> reportProgress, CancellationToken cancel)
{
using (www)
{
while (!www.isDone && !cancel.IsCancellationRequested)
{
if (reportProgress != null)
{
try
{
reportProgress.Report(www.progress);
}
catch (Exception ex)
{
observer.OnError(ex);
yield break;
}
}
yield return(null);
}
if (cancel.IsCancellationRequested)
{
yield break;
}
if (reportProgress != null)
{
try
{
reportProgress.Report(www.progress);
}
catch (Exception ex)
{
observer.OnError(ex);
yield break;
}
}
if (!string.IsNullOrEmpty(www.error))
{
observer.OnError(new WWWErrorException(www));
}
else
{
observer.OnNext(www.assetBundle);
observer.OnCompleted();
}
}
}
static IEnumerator WrapEnumerator(IEnumerator enumerator, UtyRx.IObserver <Unit> observer, CancellationToken cancellationToken, bool publishEveryYield)
{
var hasNext = default(bool);
var raisedError = false;
do
{
try
{
hasNext = enumerator.MoveNext();
}
catch (Exception ex)
{
try
{
raisedError = true;
observer.OnError(ex);
}
finally
{
var d = enumerator as IDisposable;
if (d != null)
{
d.Dispose();
}
}
yield break;
}
if (hasNext && publishEveryYield)
{
try
{
observer.OnNext(Unit.Default);
}
catch
{
var d = enumerator as IDisposable;
if (d != null)
{
d.Dispose();
}
throw;
}
}
if (hasNext)
{
yield return(enumerator.Current); // yield inner YieldInstruction
}
} while (hasNext && !cancellationToken.IsCancellationRequested);
try
{
if (!raisedError && !cancellationToken.IsCancellationRequested)
{
observer.OnNext(Unit.Default); // last one
observer.OnCompleted();
}
}
finally
{
var d = enumerator as IDisposable;
if (d != null)
{
d.Dispose();
}
}
}
static IEnumerator WrapEnumeratorYieldValue <T>(IEnumerator enumerator, UtyRx.IObserver <T> observer, CancellationToken cancellationToken, bool nullAsNextUpdate)
{
var hasNext = default(bool);
var current = default(object);
var raisedError = false;
do
{
try
{
hasNext = enumerator.MoveNext();
if (hasNext)
{
current = enumerator.Current;
}
}
catch (Exception ex)
{
try
{
raisedError = true;
observer.OnError(ex);
}
finally
{
var d = enumerator as IDisposable;
if (d != null)
{
d.Dispose();
}
}
yield break;
}
if (hasNext)
{
if (current != null && YieldInstructionTypes.Contains(current.GetType()))
{
yield return(current);
}
else if (current == null && nullAsNextUpdate)
{
yield return(null);
}
else
{
try
{
observer.OnNext((T)current);
}
catch
{
var d = enumerator as IDisposable;
if (d != null)
{
d.Dispose();
}
throw;
}
}
}
} while (hasNext && !cancellationToken.IsCancellationRequested);
try
{
if (!raisedError && !cancellationToken.IsCancellationRequested)
{
observer.OnCompleted();
}
}
finally
{
var d = enumerator as IDisposable;
if (d != null)
{
d.Dispose();
}
}
}