distinguish between method call and method response

We can not only use the fact that we have a method call inflight with
the observed id. Because the language server may has called a method
on use with the same id.

Therefore we have to also check if the incoming message contains
a method field.

method + id -> method call
id -> method response
method -> notification

1 files changed, 1 insertions, 1 deletions

diff --git a/init.lua b/init.lua
index 424e1ff..a431e79 100644
--- a/init.lua
+++ b/init.lua
@@ -914,7 +914,7 @@ end
 -- for a message response we have a req remembered in the inflight table
 local function ls_handle_method(ls, method)
   local req = ls.inflight[method.id]
-  if req then
+  if req and not method.method then
     ls_handle_method_response(ls, method, req)
   else
     ls_handle_method_call(ls, method)