Avoid pcall on vim.treesitter.language.add as it doesn't assert/error

Author: jship

fnl/conjure/client/python/stdio.fnl

@@ -237,7 +237,7 @@
                      (config.get-in [:mapping :prefix])
                      (cfg [:mapping :stop]))]
                 {:break? true})
-    (if (not (pcall #(ts.add-language "python")))
+    (if (not (ts.add-language "python"))
       (log.append [(.. M.comment-prefix "(error) The python client requires a python treesitter parser in order to function.")
                    (.. M.comment-prefix "(error) See https://github.com/nvim-treesitter/nvim-treesitter")
                    (.. M.comment-prefix "(error) for installation instructions.")])

fnl/conjure/tree-sitter.fnl

@@ -190,10 +190,11 @@
             node))))))
 
 (fn add-language [lang]
-  ((or vim.treesitter.language.add
-       vim.treesitter.language.require_language
-       vim.treesitter.require_language)
-   lang))
+  (let [add (case vim.treesitter
+              {:language {:add f}} f
+              {:language {:require_language f}} (partial pcall f)
+              {:require_language f} (partial pcall f))]
+    (add lang)))
 
 (fn get-root-node-for-str [lang code]
   (let [parser (vim.treesitter.get_string_parser code lang)]