OptionalTuple<A, B, R, X, Y> class abstract

Implementers

• BothPresent
• FirstPresent
• NeitherPresent
• SecondPresent

Constructors

OptionalTuple(R mapper(X first, Y second))

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

mapper → R Function(X first, Y second)

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

call(Optional<A> a, Optional<B> b) → Optional<R>

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