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taylorfausak | 6 years ago | on: Software projects written in Haskell

To give you a single data point, our Haskell code base at ITProTV is about 50,000 lines of code. Reloading the project after a change in GHCi takes slightly less than one second. We haven't spent any significant effort on speeding up compile speeds, for what it's worth. It's fast enough.

taylorfausak | 9 years ago | on: Remote work: 6 months later

I think it's a little misleading to call that "a while". The post says "156 private repositories" were affected during a "ten-minute window" representing "0.0013% of the total operations at the time".

taylorfausak | 9 years ago | on: Pitfalls in Haskell

I tried this out in PureScript [1]. I also made each type class have only one member and didn't specify any class hierarchy. I like how it works, but I don't know if anyone else does. It allows you to recreate the category theory type classes [2] if you want to:

    class (HasMap f) <= Functor f
    class (Functor f, HasApply f) <= Apply f
    class (Apply f, HasPure f) <= Applicative f
    class (Apply m, HasChain m) <= Bind m
    class (Applicative m, Bind m) <= Monad m
[1]: https://github.com/tfausak/purescript-neon/blob/v0.5.4/src/N... [2]: https://pursuit.purescript.org/packages/purescript-prelude/1...

taylorfausak | 9 years ago | on: Pitfalls in Haskell

That's correct.

    {-# LANGUAGE DuplicateRecordFields #-}
    data A = B { x :: Bool }
           | C { x :: Int }

    Example.hs:2:1: error:
      • Constructors B and C give different types for field ‘x’
      • In the data type declaration for ‘A’

taylorfausak | 9 years ago | on: The Four Flaws of Haskell

Thanks for that link! I haven't seen that wiki page before. Even so, only 4 extensions have been removed. I know others are de facto deprecated, like Rank2Types.

I picked scoped type variables as an example because it's been in GHC since version 6.4. That was released in March 2005, so it had plenty of time to make it into the Haskell2010 language standard.

taylorfausak | 9 years ago | on: The Four Flaws of Haskell

Nix (and NixOS) are certainly nice to use with Haskell, but Stack is good. The post even says so:

> Stackage solved the consistent set of packages, and Stack made it even easier. I now consider Haskell package management a strength for large projects, not a risk.

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