EventRunner
Contract every Event — built-in or custom — implements to actually execute its own logic. Registered against T's class via an EventDefinition, and reached exclusively through EventManager.runEvent, which builds the EventRunningScope this receives and wraps the whole call in error handling — nothing else in the framework invokes an EventRunner directly.
A stateless object is the norm (every built-in event runner is one). Work that should run off the main thread wraps its body in withContext(Dispatchers.IO) { } directly, since runEvent is already suspend — there's no separate scope-launching helper to reach for.
Inheritors
Functions
Executes event's logic, ending by calling EventRunningScope.onTrigger (directly or, for a runner whose real work can fail in several distinct ways, from inside a runSafely/try-catch onError branch) with whichever outcome trigger applies — onSuccess()/onFailure() at minimum, plus whatever narrower triggers (onStart(), status-specific ones, cancellation, etc.) this event's own catalog entry declares.