SourceKit-LSP for other build systems

[richardh (Richard)]

@blangmuir

Would the Buck/Bazel build servers themselves be responsible for notifying us? For other build systems such as cmake-server we would need to figure out what the lifetime is, since they don't have a long-lived daemon the way Buck/Bazel do.

Yes, I think thats the most sensible. If the build system did not notify the language server, at what point would the AST get updated?

@blangmuir

If we made the server aspect explicit, I would just expect this is part of the API. If we use an implicit model like you are proposing, something like DistributedNotificationCenter might work (I'm not an expert here) on macOS, but we'd need an answer for Linux (dbus?) and Windows.

Seems like adding something to the API is simplest then.