Simplify the codes

source/as-promise/index.ts

@@ -29,6 +29,12 @@ export default function asPromise<T>(firstRequest?: Request): CancelableRequest<
  const emitter = new EventEmitter();
 
  const promise = new PCancelable<T>((resolve, reject, onCancel) => {
+ firstRequest?.on('error', (error: RequestError) => {
+ if (error.code === 'ERR_GOR_ABORT_ERROR') {
+ reject(error);
+ }
+ });
+
  onCancel(() => {
  globalRequest.destroy();
  });

source/core/errors.ts

@@ -170,3 +170,16 @@ export class RetryError extends RequestError {
  this.code = 'ERR_RETRYING';
  }
 }
+
+/**
+An error to be thrown when the request is aborted by AbortController.
+DOMException is thrown instead of this Error when DOMException is available.
+*/
+export class AbortError extends RequestError {
+ constructor(request: Request, message: string) {
+ super(message, {}, request);
+ this.name = 'AbortError';
+ this.code = 'ERR_GOR_ABORT_ERROR';
+ this.message = message;
+ }
+}

source/core/index.ts

@@ -31,6 +31,7 @@ import {
  TimeoutError,
  UploadError,
  CacheError,
+ AbortError,
 } from './errors.js';
 import type {PlainResponse} from './response.js';
 import type {PromiseCookieJar, NativeRequestOptions, RetryOptions} from './options.js';
@@ -236,7 +237,7 @@ export default class Request extends Duplex implements RequestEvents<Request> {
  }
 
  this.options.signal?.addEventListener('abort', () => {
- this.destroy(new Error('This operation was aborted.'));
+ this.destroy(new AbortError(this, 'This operation was aborted.'));
  });
 
  // Important! If you replace `body` in a handler with another stream, make sure it's readable first.