DatumEither<L, R> class sealed

A sealed class representing a value that can be one of two types.

This is often used to represent a value that can be either a success or a failure. By convention, L is the error type and R is the success type.

Implementers

Properties

errorOrNull → L?: Returns the error value, or null if this is a Success.
no setter
hashCode → int: The hash code for this object.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
successOrNull → R?: Returns the success value, or null if this is a Failure.
no setter

fold<T>(T onFailure(L l, StackTrace? s), T onSuccess(R r)) → T: Folds the Either into a single value.
getError() → (L, StackTrace?): Returns the failure value, or throws an exception if this is a Success.
getSuccess() → R
isFailure() → bool: Returns true if this is a Failure.
isSuccess() → bool: Returns true if this is a Success.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
onFailure(void onFailure(L l, StackTrace? s)) → void: Performs an action on the failure value.
onSuccess(void onSuccess(R r)) → void: Performs an action on the success value.
toString() → String: A string representation of this object.
inherited