spyglass library

Classes

Dependency<T extends Object>: An immutable object describing a dependency. It can be registered in Deps by using Deps.add.
DependencyChanged: Event emitted by Deps when a dependency value is changed, i.e. as a result of the Dependency.create or Dependency.update callback.
DependencyRegistered: Event emitted by Deps when a dependency is registered. It does not mean its value can be read by Deps.get if the dependency is asynchronous. When an async dependency is resolved it will be followed by a DependencyChanged event.
DependencyUnregistered: Event emitted by Deps when a dependency is unregistered.
Deps: A box that contains dependencies. Deps can also form a tree-like hierarchy to allow for scoping and overriding dependencies. Reading values from a deps object that it doesn't contain but its ancestors will return the value from the nearest ancestor.
DepsEvent: Event emitted by Deps when a dependency is registered, unregistered, or changed.

DependencyKey = Type
Unregister = void Function(): Callback to unregister a dependency. It will be disposed of automatically.