perf(types): use homomorphic mapped type to reduce conditional branch…

…es (#3440)
honojs · Sep 23, 2024 · e1eb98d · e1eb98d
1 parent 1d8028a
commit e1eb98d
Showing 1 changed file with 2 additions and 8 deletions.
diff --git a/src/utils/types.ts b/src/utils/types.ts
@@ -52,14 +52,8 @@ export type JSONParsed<T> = T extends { toJSON(): infer J }
   ? T
   : T extends InvalidJSONValue
   ? never
-  : T extends []
-  ? []
-  : T extends readonly [infer R, ...infer U]
-  ? [JSONParsed<InvalidToNull<R>>, ...JSONParsed<U>]
-  : T extends Array<infer U>
-  ? Array<JSONParsed<InvalidToNull<U>>>
-  : T extends ReadonlyArray<infer U>
-  ? ReadonlyArray<JSONParsed<InvalidToNull<U>>>
+  : T extends ReadonlyArray<unknown>
+  ? { [K in keyof T]: JSONParsed<InvalidToNull<T[K]>> }
   : T extends Set<unknown> | Map<unknown, unknown>
   ? {}
   : T extends object