Check whether Dialyzer is installed (fixes elixir-editors#121)

J3RN · Oct 15, 2018 · 508900d · 508900d
1 parent 92b10a0
commit 508900d
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/apps/language_server/lib/language_server/dialyzer.ex b/apps/language_server/lib/language_server/dialyzer.ex
@@ -32,6 +32,11 @@ defmodule ElixirLS.LanguageServer.Dialyzer do
         {:error,
          "Dialyzer integration requires Erlang OTP 20 or higher (Currently OTP #{otp_release})"}
 
+      not Code.ensure_loaded?(:dialyzer) ->
+        {:error,
+         "The current Erlang installation does not include Dialyzer. It may be available as a " <>
+           "separate package."}
+
       not dialyzable?(System) ->
         {:error,
          "Dialyzer is disabled because core Elixir modules are missing debug info. " <>