C# (CSharp) NLox Expr.Unary Examples

Example #1

        public object visitUnaryExpr(Expr.Unary expr)
        {
            object right = evaluate(expr.right);

            switch ([email protected])
            {
            case TokenType.BANG:
                return(!isTruthy(right));

            case TokenType.MINUS:
                checkNumberOperand(expr.@operator, right);
                return(-(double)right);
            }

            // Unreachable.
            return(null);
        }

Example #2

 public string visitUnaryExpr(Expr.Unary expr)
 => parenthesize([email protected], expr.right);