symbols in prelude files (passed in via --prelude) don't autocomplete in lsp mode

[chancila]

Is it expected that symbols in the prelude autocomplete when using the vscode extension + the plain starlark binary in LSP mode?

I've tweaked the the VS code LSP args to pass --prelude in, and doing cargo run -- some_test_file.star --prelude prelude.star causes a successful evaluation, however the LSP server does not seem to have any symbols in the prelude in completion requests in VS code

[ndmitchell]

I don't think anyone considered it too carefully. Generally most people will need to build their own LSP to deal with their own Rust builtins. I think we'd probably accept a patch to make that work, but think of the unmodified LSP as mostly for demo purposes. Generally you build a specific one for your project and ship that.