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Revision as of 03:18, 25 December 2020 by Dmcilroy (talk | contribs) (Reorder lead sentence to avoid ambiguity due to the nonexistence of the linked LSP article.)

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haskell-language-server (HLS) is a GHC-oriented implementation of the Language Server Protocol (LSP).


  • Generate explicit import lists
  • Evaluate code in comments with a click


Ghcup can install HLS, but after installation, you'll need to integrate it with an editor. The README.md offers instructions for how to integrate with VSCode/SublimeText/Vim/Neovim/Atom/Emacs. Note that you may also need to add some options in your project configuration. The README also covers that.


In January 2020, Neil Mitchell wrote a blog post launching the project.[1]


  1. https://neilmitchell.blogspot.com/2020/01/one-haskell-ide-to-rule-them-all.html