:lang haskell
Description unfold
This module adds Haskell support to Doom Emacs.
Maintainers
Module flags
- +lsp
-
Enable LSP support for
haskell-mode. Requires doom-module::tools lsp and a langserver (supports haskell-language-server). - +tree-sitter
- Leverages tree-sitter for better syntax highlighting and structural text editing. Requires doom-module::tools tree-sitter.
Packages
Hacks
No hacks documented for this module.
Installation
Enable this module in your doom! block.
It is recommended to install the haskell tooling using ghcup. Only ghc is needed for basic functionality:
ghcup install ghc
but +lsp users should also install the language server:
ghcup install hls
Installing cabal or stack as well is recommended, and can be done through
ghcup.
haskell-mode provides support for hoogle, which can be installed through
system package manager, cabal, or stack.
haskell-language-server provides support for hlint, and haskell code
formatters such as brittany, floskell, ormolu, fourmolu, and stylish-haskell,
which can be installed through system package manager, cabal, or stack.
Formatter
doom-module::editor format by default uses fourmolu to format code when not relying on hls, follow the linked install instructions.
TODO Usage
This module's usage documentation is incomplete. Complete it?
This module integrates the haskell packages into Doom by providing things such as REPL support, project root recognition, etc. It also provide the following keybindings:
| Keybinding | Description |
|---|---|
| <localleader> b | Build the current cabal project |
| <localleader> c | Visit the .cabal file of the current buffer |
| <localleader> h | Toggle visibility of the form at point |
| <localleader> H | hides all top level functions |
TODO Configuration
This module's configuration documentation is incomplete. Complete it?
After installing your preferred formatter, make sure to set
lsp-haskell-formatting-provider to it.
Make sure to configure the lsp to use your perfered formatter, e.g.:
;; ~/.doom.d/config.el
(after! lsp-haskell
(setq lsp-haskell-formatting-provider "brittany"))Troubleshooting
There are no known problems with this module. Report one?
Frequently asked questions
This module has no FAQs yet. Ask one?
TODO Appendix
This module has no appendix yet. Write one?