Fix and simplify JSON type definition:

jerome-benoit · jerome-benoit · commit c523f4d36288 · 2021-02-19T15:16:39.000+01:00
+ Recursive types definition are allowed microsoft/TypeScript#33050 + Export the JSON type for reuse to avoid error like semantic error TS2345: Argument of type '(data: StationWorkerData) => void' is not assignable to parameter of type '(data: JSONValue) => JSONValue' Signed-off-by: Jérôme Benoit <jerome.benoit@sap.com>
diff --git a/src/index.ts b/src/index.ts
@@ -12,6 +12,7 @@ export type { IPool } from './pools/pool'
 export { DynamicThreadPool } from './pools/thread/dynamic'
 export { FixedThreadPool } from './pools/thread/fixed'
 export type { ThreadWorkerWithMessageChannel } from './pools/thread/fixed'
+export type { JSONValue } from './utility-types'
 export { AbstractWorker } from './worker/abstract-worker'
 export { ClusterWorker } from './worker/cluster-worker'
 export { ThreadWorker } from './worker/thread-worker'
diff --git a/src/utility-types.ts b/src/utility-types.ts
@@ -7,23 +7,16 @@ import type { KillBehavior } from './worker/worker-options'
  */
 export type Draft<T> = { -readonly [P in keyof T]?: T[P] }
 
-/**
- * Serializable primitive JSON value.
- */
-export type JSONPrimitive = number | boolean | string | null
 /**
  * Serializable JSON value.
  */
-// eslint-disable-next-line no-use-before-define
-export type JSONValue = JSONPrimitive | JSONArray | JSONObject
-/**
- * Serializable JSON object.
- */
-export type JSONObject = { [k: string]: JSONValue }
-/**
- * Serializable JSON array.
- */
-export type JSONArray = Array<JSONValue>
+export type JSONValue =
+  | string
+  | number
+  | boolean
+  | null
+  | JSONValue[]
+  | Record<string, JSONValue>
 
 /**
  * Message object that is passed between worker and main worker.
