export default class CSVError extends Error {
  static column_mismatched(index: number, extra?: string) {
    return new CSVError("column_mismatched", index, extra);
  }
  static unclosed_quote(index: number, extra?: string) {
    return new CSVError("unclosed_quote", index, extra);
  }
  static fromJSON(obj) {
    return new CSVError(obj.err, obj.line, obj.extra);
  }
  constructor(
    public err: string,
    public line: number,
    public extra?: string
  ) {
    super("Error: " + err + ". JSON Line number: " + line + (extra ? " near: " + extra : ""));
    this.name = "CSV Parse Error";
  }
  toJSON() {
    return {
      err: this.err,
      line: this.line,
      extra: this.extra
    }
  }

}