SynchronousFuture<T> class

A Future whose then implementation calls the callback immediately.

This is similar to new Future.value, except that the value is available in the same event-loop iteration.

⚠ This class is useful in cases where you want to expose a single API, where you normally want to have everything execute synchronously, but where on rare occasions you want the ability to switch to an asynchronous model. In general use of this class should be avoided as it is very difficult to debug such bimodal behavior.

  • Future<T>


SynchronousFuture(T _value)
Creates a synchronous future. [...]


hashCode → int
The hash code for this object. [...]
read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited


asStream() → Stream<T>
Creates a Stream containing the result of this future. [...]
catchError(Function onError, { bool test(dynamic error) }) → Future<T>
Handles errors emitted by this Future. [...]
then<E>(dynamic f(T value), { Function onError }) → Future<E>
Register callbacks to be called when this future completes. [...]
timeout(Duration timeLimit, { dynamic onTimeout() }) → Future<T>
Time-out the future computation after timeLimit has passed. [...]
whenComplete(dynamic action()) → Future<T>
Registers a function to be called when this future completes. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
toString() → String
Returns a string representation of this object.


operator ==(dynamic other) → bool
The equality operator. [...]