Err<T extends Object?, E extends Object?> class

Inheritance

• Object
• Result<T, E>
• Err

Constructors

Err(E error)

const

Properties

error → E

final

hashCode → int

The hash code for this object.

no setter, inherited

isErr → bool

no setter, override

isOk → bool

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

andThen<U>(Result<U, E> f(T value)) → Result<U, E>

override

andThenAsync<U>(FutureOr<Result<U, E>> f(T value)) → FutureOr<Result<U, E>>

override

err() → E?

override

fold<R extends Object?>({R onOk(T value)?, R onErr(E error)?}) → R

override

foldOne<R extends Object?>(R f(T? value, E? error)) → R

override

map<U>(U f(T value)) → Result<U, E>

override

mapAsync<U>(FutureOr<U> f(T value)) → FutureOr<Result<U, E>>

override

mapErr<F>(F f(E error)) → Result<T, F>

override

mapErrAsync<F>(FutureOr<F> f(E error)) → FutureOr<Result<T, F>>

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

ok() → T?

override

toString() → String

A string representation of this object.

override

unwrap() → T

override

unwrapErr() → E

override

unwrapOr(T defaultValue) → T

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited