Method err

src/parser.js:536–538

Throw error (defaults to unexpected token if no message provided)

(message = `Unexpected token ${this.raw}`, column = this.start)

  /** Throw error (defaults to unexpected token if no message provided) */
  err(message = `Unexpected token ${this.raw}`, column = this.start) {
    throw new Error(`Parser Error: ${message} at column ${column} in expression [${this.src}]`);
  }

  /** Consumes the current token if it matches the provided one and returns true, otherwise returns false */
  opt(token) {