| Name | Description |
|---|---|
| LazyPromise | Promise returned from Amp\lazy(). Use Amp\lazy() instead of instigating this object directly. |
| PrivateObservable | An observable that cannot externally emit values. Used by Postponed in development mode. |
| PrivatePromise | An promise that cannot be externally resolved. Used by Deferred in development mode. |
| WhenQueue | Stores a set of functions to be invoked when a promise is resolved. |
| Name | Description |
|---|---|
| Placeholder | Trait used by Promise implementations. Do not use this trait in your code, instead compose your class from one of the available classes implementing \Interop\Async\Promise. |
| Producer | Trait used by Observable implementations. Do not use this trait in your code, instead compose your class from one of the available classes implementing \Amp\Observable. |