bug: the Stubify type of DurableObjectNamespace does not correctly handle built-in types like Date.

[rxliuli]

I found another issue when using hono-rate-limiter. I encountered this problem when I wanted to test modifications locally.

import { DurableObject } from 'cloudflare:workers'
import { assert, expect, it } from 'vitest'
import { env } from 'cloudflare:test'

type ClientRateLimitInfo = {
  totalHits: number
  resetTime?: Date
}

class MyDurableObject extends DurableObject {
  value() {
    return this.ctx.storage.get<ClientRateLimitInfo>('value')
  }
}

it('should work', async () => {
  const _env = env as {
    MY_DURABLE_OBJECT: DurableObjectNamespace<MyDurableObject>
  }
  const id = _env.MY_DURABLE_OBJECT.idFromName('1')
  const stub = _env.MY_DURABLE_OBJECT.get(id)
  const r = await stub.value()
  assert(r)
  expect<ClientRateLimitInfo>(r)
})

Error

Argument of type '{ totalHits: number; resetTime?: { toString: Stub<() => string>; toDateString: Stub<() => string>; toTimeString: Stub<() => string>; toLocaleString: Stub<{ (): string; (locales?: string | string[] | undefined, options?: DateTimeFormatOptions | undefined): string; (locales?: LocalesArgument, options?: DateTimeFormatO...' is not assignable to parameter of type 'ClientRateLimitInfo'.
  Types of property 'resetTime' are incompatible.
    Type '{ toString: Stub<() => string>; toDateString: Stub<() => string>; toTimeString: Stub<() => string>; toLocaleString: Stub<{ (): string; (locales?: string | string[] | undefined, options?: DateTimeFormatOptions | undefined): string; (locales?: LocalesArgument, options?: DateTimeFormatOptions | undefined): string; }>; ...' is not assignable to type 'Date | undefined'.
      Type '{ toString: Stub<() => string>; toDateString: Stub<() => string>; toTimeString: Stub<() => string>; toLocaleString: Stub<{ (): string; (locales?: string | string[] | undefined, options?: DateTimeFormatOptions | undefined): string; (locales?: LocalesArgument, options?: DateTimeFormatOptions | undefined): string; }>; ...' is not assignable to type 'Date'.
        The types returned by 'toString(...)' are incompatible between these types.
          Type 'Promise<string>' is not assignable to type 'string'.ts(2345)

Modify the implementation of Stubify to correctly ignore the Date type.

type Stubify<T> = T extends Stubable
  ? Stub<T>
  : T extends Map<infer K, infer V>
  ? Map<Stubify<K>, Stubify<V>>
  : T extends Set<infer V>
  ? Set<Stubify<V>>
  : T extends Array<infer V>
  ? Array<Stubify<V>>
  : T extends ReadonlyArray<infer V>
  ? ReadonlyArray<Stubify<V>>
  : T extends Rpc.Serializable // modify
  ? T
  : T extends {
      [key: string | number]: any
    }
  ? {
      [K in keyof T]: Stubify<T[K]>
    }
  : T