Andrei Borzenkov

Let's see foldMapA behavior on strict and lasy monoids. The first example will be: ```haskell foo :: (String, (Sum Int)) foo = foldMapA (\x -> pure (Sum x)) [1, 2,...

@brandonchinn178 Just making sure I'm in touch. I'll do it when I have free time. Unfortunately, now it is categorically lacking.

The error looks really weird. The interesting files are: 1) The last time we see `haskell.nix` in the stack trace: https://github.com/input-output-hk/haskell.nix/blob/83f1cb67cb3c97553815d5562d070ac754c25686/overlays/fetch-source.nix#L37 1) Declaration of fetch gitlab function: https://github.com/NixOS/nixpkgs/blob/63dacb46bf939521bdc93981b4cbb7ecb58427a0/pkgs/build-support/fetchgitlab/default.nix#L19 In the...

Hello there. I'm working on codebase with high usage of high order functions that do something with monad M. These helpers change some environment for inner computation, catch errors and...

I understand that there are low-tech workarounds, that doesn't allow me to use one function in all cases, however I want to give you a motivational example about what may...

I actually don't care about `Foldable` instance for any tuple, because the main goal of `Foldable` is to give me a `for_` over this structure, not much useful for a...