Impact of c# 8 extensions on design

[farlee2121]

https://adrientorris.github.io/csharp/what-i-get-from-the-preview-of-csharp-8-with-Mads-Torgersen.html#extension_everything
dotnet/csharplang#110

C# will get extensions to instances that can add properties, instance methods, etc.
It may also get Type Classes (like interfaces, but instead of being part of the type definition it is more verified that the class fits the constraint)

What does this mean for my design?

Could I use extension to mimic AOP without dynamic proxies? I.e. extend all types with a log function. These log functions can be maintained separately and different ones can be used based on what log assembly is included? Hmm. This has a hole that I still need funnel info to the logger, which would require to accept the right info to pass on....

Anyway. Questions like that

[farlee2121]

It is worth noting that I the new asp.net logging paradigm is closer to what I want. It automagically injects a generic logger instantiated for the right type. I could plug into that to extend specific logger types with convenient logging functions. Not as transparent as AOP, but still a nicer logging paradigm

[farlee2121]

TypeClasses / Concepts may enable easier test data generation like in clojure, which generates for all values allowed by type constraints (i.e. can say this field is an in 0 to 10).