typed<T> static method
- @Deprecated('Use Stream.cast instead')
- StreamSubscription subscription
Creates a wrapper which throws if subscription
's events aren't instances
of T
.
This soundly converts a StreamSubscription to a StreamSubscription<T>
,
regardless of its original generic type, by asserting that its events are
instances of T
whenever they're provided. If they're not, the
subscription throws a TypeError.
Implementation
@Deprecated('Use Stream.cast instead')
// TODO - Remove `TypeSafeStreamSubscription` and tests when removing this.
static StreamSubscription<T> typed<T>(StreamSubscription subscription) =>
subscription is StreamSubscription<T>
? subscription
: TypeSafeStreamSubscription<T>(subscription);