I have some code that is nearly identical, but uses absolutely different types, with no inheritance between them, on the main variable. Specifically, I am writing an analyzer with Roslyn for C# and VB.NET, with the following types:
I am wondering if, because the code is doing the same thing, I should keep it as DRY as possible, splitting off as little as possible into separate (but identical other than the type) methods, or completely separate it because the two methods are not related and future changes could force one version to change, but not the other (although this is unlikely)?
Edit: A year or so later, I hit this same issue, and the Roslyn team helped me solve it: Write a base class that takes generics and has a
TAttributeSyntax parameter that does most of the work. Then, write derived classes with the bare minimum of data that needs a specific type.