rsnext/packages/next/server/web/spec-extension/fetch-event.ts

import { DeprecationError } from '../error'
import { FetchEvent } from '../spec-compliant/fetch-event'
import { NextRequest } from './request'

export class NextFetchEvent extends FetchEvent {
  readonly request: NextRequest
  constructor(request: NextRequest) {
    super(request)
    this.request = request
  }

  respondWith() {
    throw new DeprecationError()
  }
}