WatcherImpl<T> class

Implemented types

• Watcher<T>

Constructors

WatcherImpl(SourcesFn<T> sourcesFn, WatcherFn<T> fn, {bool immediately = false, WhenFn<T>? when, bool detach = false, JoltDebugOption? debug})

WatcherImpl.immediately(SourcesFn<T> sourcesFn, WatcherFn<T> fn, {WhenFn<T>? when, bool detach = false, JoltDebugOption? debug})

factory

WatcherImpl.once(SourcesFn<T> sourcesFn, WatcherFn<T> fn, {WhenFn<T>? when, bool detach = false, JoltDebugOption? debug})

factory

Properties

currentValues ↔ T

The latest source value snapshot cached by this watcher.

getter/setter pair

effect → EffectNode

no setter, override

fn ↔ WatcherFn<T>

The callback that runs when this watcher reports a visible change.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

isDisposed → bool

Whether this node has been disposed.

no setter, override

isPaused → bool

Whether this watcher is currently paused.

no setter, override

previousValues ↔ T

The previous source value snapshot used for comparisons.

getter/setter pair

raw ↔ EffectNode

late, final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

sourcesFn ↔ SourcesFn<T>

The callback that returns the value or snapshot watched by this watcher.

getter/setter pair

testCachedSources → T

no setter

when ↔ WhenFn<T>?

The optional predicate that decides whether this watcher should trigger.

getter/setter pair

Methods

dispose() → void

Disposes this node and cleans up resources.

override

ignoreUpdates<U>(U fn()) → U

Runs fn while suppressing watcher callbacks caused by its updates.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onCleanup(Disposer fn) → void

Registers a cleanup callback for this watcher.

override

pause() → void

Pauses the watcher and clears its current dependency list.

override

resume() → void

Resumes the watcher and immediately re-collects its dependencies.

override

toString() → String

A string representation of this object.

inherited

trigger() → void

Re-runs the watcher callback with the current cached values.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited