Possibility of on-disk caching

[rudiejd]

One issue I've noticed when running csharp-ls, or any other LSP, with a large project is startup time. csharp-ls specifically will redo semantic tokens and analysis regardless of whether files have changed since the last start.

Is there a possibility for this project to support on-disk caching, perhaps at the file or even project level? This is something that clangd does extensively, and it seems to benefit its startup time.

[razzmatazz]

I am not so sure about this. csharp-ls is a relatively thin wrapper over ms roslyn libs and I am not aware of api to allow this.

I may be wrong about this though--please correct me if I'm wrong!

Otherwise some kind of speculative caching could be attempted while project is being loaded but I am somewhat doubtful about the results vs effort ratio.