Method lookahead

src/parser/object-parser.ts:105–107

* Get lookahead token with fresh type (avoids TypeScript narrowing issues).

()

   * Get lookahead token with fresh type (avoids TypeScript narrowing issues).
   */
  private lookahead(): Token | null {
    return this.buf2;
  }

  private warn(message: string): void {
    this.onWarning?.(message, this.reader.position);