✨ Language Server Protocol Integration

[heftymouse]

The Language Server Protocol defines a cross-editor protocol to obtain rich language features from an external source. Adding support for this to CodeEdit would make it far simpler to port language extensions from other IDEs (especially VSCode), making everyone's life easier :p

[mattmassicotte]

I work on two libraries related to Language Server Protocol that could be helpful.

LanguageServerProtocol is low-level protocol support. LSP has a very large spec with a huge amount of types, not all of which map nicely to Swift. This lib wraps up all that.

LanguageClient is a much higher-level abstraction that supports client-server interactions, as well as transparent server restarting.

Now, if you are thinking of some kind of VS Code extension interoperability, I'm not sure how much these will help, as all the VSC stuff is implemented in JavaScript.

[austincondiff]

Relevant links

• https://microsoft.github.io/language-server-protocol/
• https://docs.microsoft.com/en-us/visualstudio/extensibility/language-server-protocol?view=vs-2022
• https://en.wikipedia.org/wiki/Language_Server_Protocol

[austincondiff]

Where are we on this issue? What do we have left to call it done? It may be good to define this issues scope.

@lukepistrol does this tie into what you are working on in the new editor?