Inlay Hints in Java

[jrmoulton]

The eclipse lsp jdtls support inlay hints for parameter names. In vscode the setting for enabling inlay hints is "java.inlayHints.parameterNames.enabled": "all" and so in my languages.toml I added

[language.config.java.inlayHints]
parameterNames.enabled = "all"

I don't get any inlay hints and in my log file I see 2023-04-16T00:57:33.300 helix_term::application [ERROR] Language Server: Method workspace/inlayHint/refresh not found in request 3

Is this even how I would go about adding support for inlay hints in Java or is there something else I need to add?

[the-mikedavis]

It looks like jdtls is sending a workspace/inlayHint/refresh request. We declare that we don't support the refresh request in the client capabilities so jdtls should not be sending this request. Alternatively I think that implementing that request would not be so much work to implement in Helix.

That config looks ok but I haven't tried using jdtls. Make sure that is under a [[language]] section for java:

# ~/.config/helix/languages.toml
[[language]]
name = "java"
[language.config.java.inlayHints]
parameterNames.enabled = "all"

and also that inlay hints is enabled in config:

# ~/.config/helix/config.toml
[editor.lsp]
display-inlay-hints = true

[jrmoulton]

Verified and still not working. Seems like jdtls is expecting the editor to request the update before it will actually provide inlay hints.

Alternatively I think that implementing that request would not be so much work to implement in Helix.

I'll look into supporting workspace/inlayHint/refresh in helix and see if that fixes the issue.

[devanlooches]

Putting this in case it helps anyone:

The following configuration works for me with the jdtls language server:

[language-server.jdtls.config.java.inlayHints]
parameterNames.enabled = "all"

[David-Else]

Plz consider adding this to the WIKI :) https://github.com/helix-editor/helix/wiki/Language-Server-Configurations#java

[devanlooches]

Ah good idea I will see if I can do that

[devanlooches]

Done