How can I create a method that has a smiliar functionality as the new "?." operator? [duplicate]

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• How to use Expression Tree to safely access path of nullable objects? 1 answer

With C# 6 we can use the new ? to access properties and methods without heaving to check each one for null. Would it be possible to write a method that has a siliar functionality using expressions?

For example I have to use a weird object structures (that comes from a 3rd party library that we cannot change). Accessing some properties requires often long chains of dots:

rootObject.Services.First().Segments.First().AnotherCollection.First().Weight;

Any of the objects after rootObject can be null. I would rather not put a try/catch around it. Also checking each property separately is a lot of work. So I was wondering if I could pass it to the method taking an expression and traverse each property and check its value there:

var value = PropertyHelper.GetValue(() => rootObject.Services.First().Segments.First().AnotherCollection.First().Weight);

I guess its signature would be something like:

public static T GetValue<T>(Expression<Func<T>> expression)
{
    // analyze the expression and evaluate each property/method
    // stop when null or return the value
}

I'm not realy sure if expressions are capable of what I'm going to do and before I start experimenting I wanted to ask whether it's even possible.