Opaque class Null safety

Opaque's subtypes represent opaque types in C.

Opaque's subtypes are not constructible in the Dart code and serve purely as markers in type signatures.

Inheritance
Implementers
Annotations
  • @Since('2.12')

Constructors

Opaque()

Properties

hashCode → int
The hash code for this object.
read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited