CallbackUtil<_> class abstract

Base class for generic strongly-typed callback chaining utilities.

Implementers

• CallbackUtil0Arg
• CallbackUtil1Arg
• CallbackUtil2Arg
• CallbackUtil3Arg
• CallbackUtil4Arg

Constructors

CallbackUtil()

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

noop → Function

A callback that does nothing.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

chain(covariant Function? a, covariant Function? b) → Function

Returns a strongly-typed chained callback that calls through to the two provided callbacks, a and b, in order. Useful for executing multiple callbacks where only a single callback is accepted.

chainFromList(covariant List<Function?> callbacks) → Function

Returns a strongly-typed chained callback that calls through to the list of provided callbacks in order. Useful for executing multiple callbacks where only a single callback is accepted.

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