This is why I gave up on Haskell. Lens works as advertised, but is a pain to learn and to use in practice: the abstraction is tough to grasp and it is hard to form an intuition about it. The compilation errors are laughingly esoteric. The number of adhoc squwiggly operators is ridiculous. You also need to understand a lot of language extensions to get how the type checking works.
To me it looks like an impressive proof of concept for a future programming language based around it.
If I were to start a project with Haskell the use of lens would be explicitly forbidden.
To me it looks like an impressive proof of concept for a future programming language based around it.
If I were to start a project with Haskell the use of lens would be explicitly forbidden.