void EnsureInitializedCore()
{
lock (syncLock)
{
if (!Volatile.Read(ref initialized))
{
var f = Interlocked.Exchange(ref taskFactory, null);
if (f != null)
{
var task = f();
var awaiter = task.GetAwaiter();
if (awaiter.IsCompleted)
{
SetCompletionSource(awaiter);
}
else
{
this.awaiter = awaiter;
awaiter.SourceOnCompleted(continuation, this);
}
Volatile.Write(ref initialized, true);
}
}
}
}
protected bool TryGetResult(UniTask.Awaiter awaiter)
{
try {
awaiter.GetResult();
return(true);
}
catch (Exception ex) {
completionSource.TrySetException(ex);
return(false);
}
}
public UniTaskStatus GetStatus(short token)
{
var f = Interlocked.Exchange(ref factory, null);
if (f == null)
{
throw new InvalidOperationException("Can't call twice.");
}
task = f();
awaiter = f().GetAwaiter();
return(task.Status);
}
internal AsyncLazy(UniTask task)
{
this.taskFactory = null;
this.completionSource = new UniTaskCompletionSource();
this.syncLock = null;
this.initialized = true;
var awaiter = task.GetAwaiter();
if (awaiter.IsCompleted)
{
SetCompletionSource(awaiter);
}
else
{
this.awaiter = awaiter;
awaiter.SourceOnCompleted(continuation, this);
}
}