Architecture that extends types using extension methods (Microsoft patent)(patents.google.com)
patents.google.com
Architecture that extends types using extension methods (Microsoft patent)
https://patents.google.com/patent/US20100175048A1/en
3 comments
Welcome to the bizarro world of software patents where prior art no longer matters.
So much for C# being open-source, I guess? Is it even safe to fork this repo? https://github.com/dotnet/csharpstandard
Final tagless[1] is an fp approach and Object algebras[2] is an oop approach to solving this problem.
Setting aside the timelime, reading the various claims it seems like Eric Meijer, Anders Hejlsberg et al still had a hard time obfuscating the math to make patentable claims. A naive read (on my part) of the claims looks like they wished to patent Object Algebras.
[0] https://homepages.inf.ed.ac.uk/wadler/papers/expression/expr...
[1] https://okmij.org/ftp/tagless-final/
[2] https://blog.acolyer.org/2015/11/13/scrap-your-boilerplate-w...