allow cancel event predicates to return any Thenable type

Author: KTrain5169

packages/types/CHANGELOG.md

@@ -35,6 +35,10 @@ For prereleases:
     - `defineSetupHook` for defining a context setup hook.
     - Note that these are meant to be used standalone, so you can get type hints if you want to reuse these components across actions. If you're already defining an action via `defineAction` and don't need to reuse those components across actions, you shouldn't need to use these helper functions (and is discouraged since it can overcomplicate type checking).
 
+### Changed
+
+- Cancel event predicates are now typed as `(event: T) => boolean | Thenable<boolean>`, which no longer restricts you to using `Promise`s.
+
 ## 1.0.0-pre.14
 
 ### Breaking changes

packages/types/src/actions/classes.ts

@@ -131,7 +131,7 @@ export interface RCECancelEventInitializer<T = any> {
     /** The reason that will be used to log the cancellation. */
     logReason?: ReasonGenerator<T>;
     /** Events that will trigger the cancellation. If the predicate is null, the event will always trigger the cancellation. */
-    events?: [Event<T>, ((data: T) => boolean | Promise<boolean>) | null][];
+    events?: [Event<T>, ((data: T) => boolean | Thenable<boolean>) | null][];
 }
 
 export interface RCECancelEvent<T = any> {