How to disable completion snippets

[berberman]

Thanks to all contributors, this is an awesome feature. But it can be annoying sometimes. For functions, supposed that I'm playing with point-free code, or using view patterns, obviously it should not help me complete the arguments. For types, I don't think inserting * makes a lot of sense. Personally speaking, in more than half of cases I have to delete these generated snippets, and they are not informative, since I can grab the details of a function or a type in the populated completion window,

Is there a way to disable this in lsp clients?

Your environment

Output of haskell-language-server --probe-tools or haskell-language-server-wrapper --probe-tools:

haskell-language-server version: 0.7.0.0 (GHC: 8.10.2) (PATH: /home/berberman/.cabal/store/ghc-8.10.2/haskell-language-server-0.7.0.0-366830c6e84454f47d73ac01246969cb5c550194b34bde3428fbd57c6144f4d0/bin/haskell-language-server)
Tool versions found on the $PATH
cabal:		3.2.0.0
stack:		2.5.1
ghc:		8.10.2

Which lsp-client do you use:

vscode

[jneira]

A config option would be the way i guess. It could be added in the pr that are moved completions to hls: #670 and ideally it would be included in the plan to configure plugins in a general way: #513 (although it doesnt have to wait for it, hlint already has a option to disable it)
//cc @gdevanla

[konn]

IIRC, Haskell extension for VSCode provides a flag for exactly this issue: you can turn off Haskell: Completion Snippets On , which corresponds to haskell.completionSnippetsOn.

[expipiplus1]

@konn the readme says that this flag is unused:

haskell-language-server/README.md

Line 291 in f78f40c

- Completion snippets (`haskell.completionSnippetsOn`, default true): whether to support completion snippets (currently unused until we have snippets to provide)

[jneira]

@konn thanks for note it, so the config option already exists and it still is included in the plugin configuration data type:

haskell-language-server/hls-plugin-api/src/Ide/Plugin/Config.hs

Line 51 in bf8ce83

, completionSnippetsOn :: Bool

So it is matter to use it effectively in the new hls completion plugin.

[konn]

@expipiplus1 @jneira Ah, I misunderstood the situation. Sorry.

[poscat0x04]

I too find completion snippets utterly unhelpful.

[gdevanla]

@poscat0x04 Thanks for the feedback. Is your concern similar to what the berberman had brought up? Do you have any suggestions on how we could make the experience better and useful? Thanks for trying it out and letting us know how you feel.