StartWithErrorStreamTransformer<S> class

Prepends an error to the source Stream.

Example

Stream.fromIterable([2])
  .transform(StartWithErrorStreamTransformer('error'))
  .listen(null, onError: (e) => print(e)); // prints 'error'

Inheritance

• Object
• StreamTransformerBase<S, S>
• StartWithErrorStreamTransformer

Constructors

StartWithErrorStreamTransformer(Object error, [StackTrace? stackTrace])

Constructs a StreamTransformer which starts with the provided error and then outputs all events from the source Stream.

Properties

error → Object

The starting error of this Stream

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

stackTrace → StackTrace?

The starting stackTrace of this Stream

final

Methods

bind(Stream<S> stream) → Stream<S>

Transforms the provided stream.

override

cast<RS, RT>() → StreamTransformer<RS, RT>

Provides a StreamTransformer<RS, RT> view of this stream transformer.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited