Method constructor

src/classes.ts:29–55

(code: number, message: string, data?: Data)

  public data?: Data;

  constructor(code: number, message: string, data?: Data) {
    if (!Number.isInteger(code)) {
      throw new Error('"code" must be an integer.');
    }

    if (!message || typeof message !== 'string') {
      throw new Error('"message" must be a non-empty string.');
    }

    if (dataHasCause(data)) {
      // @ts-expect-error - Error class does accept options argument depending on runtime, but types are mapping to oldest supported
      super(message, { cause: data.cause });

      // Browser backwards-compatibility fallback
      if (!hasProperty(this, 'cause')) {
        Object.assign(this, { cause: data.cause });
      }
    } else {
      super(message);
    }

    if (data !== undefined) {
      this.data = data;
    }

    this.code = code;
  }

  /**
   * Get the error as JSON-serializable object.