52 lines
1.5 KiB
Markdown
52 lines
1.5 KiB
Markdown
# Haskell
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Haskell support is available through the [Haskell extension](https://github.com/zed-extensions/haskell).
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- Tree-sitter: [tree-sitter-haskell](https://github.com/tree-sitter/tree-sitter-haskell)
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- Language Server: [haskell-language-server](https://github.com/haskell/haskell-language-server)
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## Installing HLS
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Recommended method to [install haskell-language-server](https://haskell-language-server.readthedocs.io/en/latest/installation.html) (HLS) is via [ghcup](https://www.haskell.org/ghcup/install/) (`curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
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`):
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```sh
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ghcup install hls
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which haskell-language-server-wrapper
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```
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## Configuring HLS
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If you need to configure haskell-language-server (hls) you can add configuration options to your Zed settings.json:
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```json [settings]
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{
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"lsp": {
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"hls": {
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"initialization_options": {
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"haskell": {
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"formattingProvider": "fourmolu"
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}
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}
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}
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}
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}
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```
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See the official [configuring haskell-language-server](https://haskell-language-server.readthedocs.io/en/latest/configuration.html) docs for more options.
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If you would like to use a specific hls binary, or perhaps use [static-ls](https://github.com/josephsumabat/static-ls) as a drop-in replacement instead, you can specify the binary path and arguments:
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```json [settings]
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{
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"lsp": {
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"hls": {
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"binary": {
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"path": "static-ls",
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"arguments": ["--experimentalFeatures"]
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}
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}
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}
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}
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```
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