Method error

packages/compiler/src/expression_parser/lexer.ts:600–607

(message: string, offset: number)

  }

  private error(message: string, offset: number): Token & {type: TokenType.Error} {
    const position: number = this.index + offset;
    return newErrorToken(
      position,
      this.index,
      `Lexer Error: ${message} at column ${position} in expression [${this.input}]`,
    ) as Token & {type: TokenType.Error};
  }

  private scanStringBackslash(
    buffer: string,