转换Expression.Property结果

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

Expression<Func<Person, string>> expression = p => p.Name;

public class PropertyVisitor : ExpressionVisitor
{
    protected override Expression VisitMember(MemberExpression node)
    {
        if (node.Member.DeclaringType == typeof(Person) && node.Member.Name == "Name")
        {
            return Expression.Property(node.Expression, typeof(Person).GetProperty("FullName"));
        }

        return base.VisitMember(node);
    }
}

Expression<Func<Person, string>> expression = p => p.Name;
var visitor = new PropertyVisitor();
var newExpression = (Expression<Func<Person, string>>)visitor.Visit(expression);