FuseToFlowable

Type Parameters:

T - the value type

All Known Implementing Classes:

FlowableAllSingle, FlowableAnySingle, FlowableCollectSingle, FlowableCollectWithCollectorSingle, FlowableCountSingle, FlowableElementAtMaybe, FlowableElementAtSingle, FlowableFlatMapCompletableCompletable, FlowableIgnoreElementsCompletable, FlowableReduceMaybe, FlowableSequenceEqualSingle, FlowableSingleMaybe, FlowableSingleSingle, FlowableToListSingle
```
public interface FuseToFlowable<@NonNull T>
```
Interface indicating a operator implementation can be macro-fused back to Flowable in case the operator goes from Flowable to some other reactive type and then the sequence calls for toFlowable again:
```
 
 Single<Integer> single = Flowable.range(1, 10).reduce((a, b) -> a + b);
 Flowable<Integer> flowable = single.toFlowable();
 
 
```
The Single.toFlowable() will check for this interface and call the fuseToFlowable() to return a Flowable which could be the Flowable-specific implementation of reduce(BiFunction).
This causes a slight overhead in assembly time (1 instanceof check, 1 operator allocation and 1 dropped operator) but does not incur the conversion overhead at runtime.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  @NonNull Flowable<T> fuseToFlowable()
  Returns a (direct) Flowable for the operator.

- Method Detail
  - fuseToFlowable
```
@NonNull
@NonNull Flowable<T> fuseToFlowable()
```
    Returns a (direct) Flowable for the operator.
    The implementation should handle the necessary RxJavaPlugins wrapping.
    
    Returns:
    
    the Flowable instance