NewCancelationHandle returns a new cancelation handle.

NewHandler creates a Serulian language server handler.

DiagnoseDelay is the delay waited before a document is re-parsed.

MaximumBuildDuration is the maximum duration to build a handle before we timeout.

CancelationHandle is a handle for tracking the cancelation of a language server request.

SerulianLangServerHandler defines a JSON-RPC handler that implements the Serulian language server.