public override void OnNext(T value)
{
bool isPassed;
try
{
isPassed = parent.predicate(value);
}
catch (Exception ex)
{
try { observer.OnError(ex); }
finally { Dispose(); }
return;
}
if (isPassed)
{
if (seenValue)
{
try { observer.OnError(new InvalidOperationException("sequence is not single")); }
finally { Dispose(); }
return;
}
else
{
seenValue = true;
lastValue = value;
}
}
}
public override void OnNext(T value)
{
bool flag;
try
{
flag = parent.predicate(value);
}
catch (Exception error)
{
try
{
observer.OnError(error);
}
finally
{
Dispose();
}
return;
}
if (flag)
{
if (seenValue)
{
try
{
observer.OnError(new InvalidOperationException("sequence is not single"));
}
finally
{
Dispose();
}
return;
}
seenValue = true;
lastValue = value;
}
}
