Signal

Remarks

Writing a value equal to the current one does nothing at all — no version bump, no notification, no effect run. That is not an optimisation bolted on the side; it is the property the rest of the graph is built to preserve, and the reason a text box that re-assigns the same string on every keystroke does not repaint the window.

"Equal" means Default unless a comparer is supplied. For a mutable reference type that is usually wrong — the object is the same instance, so it compares equal, and a change made in place is invisible. Either hold an immutable value, or pass Never``1 and accept that every write propagates.

Fields and properties (1)

• public T Value

  The current value.

Methods (5)

• public Signal(T initial, IEqualityComparer<T>? comparer = null)

  Creates a signal holding .

• public T Peek()

  The current value without recording a dependency.

• public void Update(Func<T, T> update)

  Replaces the value with a function of the current one.

• public void Update<TState>(TState state, Func<T, TState, T> update)

  Replaces the value with a function of the current one and some state.

• public void Invalidate()

  Forces every dependent to re-evaluate, whatever the comparer thinks.

Used by (151, showing 40)

• ActionBarMmo.Ui
• ActionSlotMmo.Ui
• BagGridMmo.Ui
• BagModelMmo.Ui
• BagSlotMmo.Ui
• ChatModelMmo.Ui
• ChatPanelMmo.Ui
• GalleryHelloUi
• HudMmo.Ui
• HudModelMmo.Ui
• HudTestsMmo.Ui.Tests
• LootRollMmo.Ui
• LootRollModelMmo.Ui
• ObjectiveEntryMmo.Ui
• QuestEntryMmo.Ui
• QuestTrackerMmo.Ui
• ShellHelloUi
• ShellModelHelloUi
• SnapshotHelloUi
• UnitFrameMmo.Ui
• UnitModelMmo.Ui
• VendorModelMmo.Ui
• VendorPanelMmo.Ui
• VendorRowMmo.Ui
• AsyncArrivalTestsVixen.Ui.Controls.Tests
• AsyncComputedVixen.Ui.Reactive
• AsyncComputedTestsVixen.Ui.Reactive.Tests
• AsyncHostVixen.Ui.Controls.Tests
• BackgroundTaskVixen.Ui
• BareVixen.Ui.Tests
• BoundVixen.Ui.Tests
• BoundOverlaySheetVixen.Ui.Controls.Tests
• BranchingVixen.Ui.Tests
• BranchingRefsVixen.Ui.Tests
• BrokenBindingTestsVixen.Ui.Tests
• BuildContextVixen.Ui
• CarryingVixen.Ui.HotReload.Tests
• CompositionTestsVixen.Ui.Tests
• ComputedTestsVixen.Ui.Reactive.Tests
• ConvertedVixen.Ui.Controls.Tests