Method headersCompleted

src/llhttp/http.ts:1140–1169

()

  }

  private headersCompleted(): Node {
    const p = this.llparse;
    const callback = this.callback;
    const n = (name: string): Match => this.node<Match>(name);

    // Set `upgrade` if needed
    const beforeHeadersComplete = p.invoke(callback.beforeHeadersComplete);

    /* Here we call the headers_complete callback. This is somewhat
     * different than other callbacks because if the user returns 1, we
     * will interpret that as saying that this message has no body. This
     * is needed for the annoying case of receiving a response to a HEAD
     * request.
     *
     * We'd like to use CALLBACK_NOTIFY_NOADVANCE() here but we cannot, so
     * we have to simulate it by handling a change in errno below.
     */
    const onHeadersComplete = p.invoke(callback.onHeadersComplete, {
      0: n('headers_done'),
      1: this.setFlag(FLAGS.SKIPBODY, 'headers_done'),
      2: this.update('upgrade', 1,
        this.setFlag(FLAGS.SKIPBODY, 'headers_done')),
      [ERROR.PAUSED]: this.pause('Paused by on_headers_complete',
        'headers_done'),
    }, p.error(ERROR.CB_HEADERS_COMPLETE, 'User callback error'));

    beforeHeadersComplete.otherwise(onHeadersComplete);

    return beforeHeadersComplete;
  }

  private node<T extends Node>(name: string | T): T {
    if (name instanceof Node) {