Command to open external documentation for item under cursor

[antoyo]

Describe your feature request

I'd like a command to open the external documentation for an item under the cursor, like this.
For instance, it will open docs.rs for a symbol in a Rust buffer.

[AlexanderBrevig]

Seem like this is a rust-analyzer LSP Extension and as such would only work for rust lang. I started looking into implementing this, but got a bit unsure of the best way forward as it's not part of the current LSP spec.

Ideas?

[the-mikedavis]

There was some prior discussion¹ about language-specific LSP extensions. It would be perfect for a language-specific plugin once the plugin-system is featureful enough to support it, but it's a bad fit for core since it's specific to language or small subset of languages. For now it's best to keep any necessary changes up to date in a fork

Footnotes

1. I can't find the links to the issues/discussions/matrix-chats but I think this has come up for non-standard typescript/deno location types and some omnisharp and solargraphs messages. I'll update this comment if I can find them ↩