Immutable class

Annotation on an immutable class.

Used to annotate a class declaration.

Indicates that the class, and all subtypes of it, must be immutable.

A class is immutable if all of the instance fields of the class, whether defined directly or inherited, are final.

This class has a reason field that can be displayed as part of the error message if a subclass is not immutable.

See immutable for more details.

Annotations

• @Target.new({TargetKind.classType, TargetKind.extensionType, TargetKind.mixinType})

Constructors

Immutable([String reason = ''])

Creates annotation for being immutable with the given reason.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

reason → String

A human-readable explanation of the reason why the class is immutable.

final

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

Operators

operator ==(Object other) → bool

The equality operator.

inherited