Method readIntegerAt

src/parser/xref-parser.ts:547–565

* Read an integer at given position.

(pos: number)

   * Read an integer at given position.
   */
  private readIntegerAt(pos: number): number | null {
    const bytes = this.scanner.bytes;
    let value = 0;
    let hasDigits = false;

    while (pos < bytes.length) {
      const byte = bytes[pos];

      if (byte >= DIGIT_0 && byte <= DIGIT_9) {
        value = value * 10 + (byte - DIGIT_0);
        hasDigits = true;
        pos++;
      } else {
        break;
      }
    }

    return hasDigits ? value : null;
  }

  /**
   * Read an integer from current scanner position.