Possible pitfalls of using this (extension method based) shorthand

Question

C#6 Update

In C#6 ?. is now a language feature:

// C#1-5
propertyValue1 = myObject != null ? myObject.StringProperty : null; 

// C#         


        

Answer 1

it does make the code a little easier to read, but at the cost of extending object. This would appear on everything,

Note that you are not actually extending anything (except theoretically).

propertyValue2 = myObject2.IfNotNull( x => x.IntProperty, 0);

will generate IL code exactly as if it were written:

ExtentionClass::IfNotNull(myObject2,  x => x.IntProperty, 0);

There is no "overhead" added to the objects to support this.