UndefinedSentinel class abstract

Base for generated copyWith defaults that distinguish omission from null.

Sentinels are generated-code infrastructure, not field values. Generated code must check for them before accessing any members of the field's type.

Constructors

UndefinedSentinel()

Creates an undefined value for a generated copyWith parameter.

const

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.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited