ProcessValue<T> class sealed

A union type for ProcessData, ProcessLoading, and ProcessError.

Meant to treat a process declaratively, as a stream of values. This concept is similar to AsyncValue from Riverpod.

Implementers

• ProcessData
• ProcessError
• ProcessLoading

Constructors

ProcessValue()

A union type for ProcessData, ProcessLoading, and ProcessError.

const

ProcessValue.data(T value)

A value of type T that represents the successful completion of a process.

const

factory

ProcessValue.error(Object error, {StackTrace? stackTrace})

The process failed with an error and optional stackTrace.

const

factory

ProcessValue.loading(double progress)

The process is still running, but progress is available.

const

factory

Properties

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

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

whenData<R>(R mapper(T value)) → ProcessValue<R>

Tries to map this ProcessValue to another ProcessValue using the provided mapper function.

whenDataAsync<R>(FutureOr<R> mapper(T value)) → Future<ProcessValue<R>>

Tries to map this ProcessValue to another ProcessValue using a an async mapper function.

Operators

operator ==(Object other) → bool

The equality operator.

inherited