LSP signatureHelp result is null

[olifink]

Description

Hi again,

I'm debugging my Nova integration signatureHelp request of the ruby-lsp and would need your insight. I'm using code from your test file locally as my localtest.rb file.:

class Foo
  def bar(a, b)
  end
	
  def baz
    bar#<-- cursor here, entering '('
  end
end

the file seems to be indexed correctly (I get valid hover responses) but see the following request/response exchange from Nova with the LSP log for signatureHelp:

Ruby Language Server[11:16:17.839000] Sending JSON-RPC request: number(178) textDocument/signatureHelp
{
  "params" : {
	"position" : {
	  "line" : 5,
	  "character" : 6
	},
	"textDocument" : {
	  "uri" : "file:\/\/\/Users\/olifink\/Courses\/pickaxe\/localtest.rb"
	},
	"context" : {
	  "isRetrigger" : false,
	  "triggerCharacter" : "(",
	  "triggerKind" : 2
	}
  },
  "jsonrpc" : "2.0",
  "method" : "textDocument\/signatureHelp",
  "id" : 178
}

Ruby Language Server[11:16:17.850000] Received JSON-RPC response: number(178) textDocument/signatureHelp
{
  "jsonrpc" : "2.0",
  "id" : 178,
  "result" : null
}

the request doesn't seem incorrect and is not very different from the one in your test case, I'm wondering why I get a null result in the response?

[olifink]

using 0.16.1 - here is the init.log if it helps