From cd4dac02a3bb5431979b0812a80dadf6ee088f5e Mon Sep 17 00:00:00 2001
From: William Boman <william@redwill.se>
Date: Sat, 30 Apr 2022 15:44:37 +0200
Subject: feat: allow excluding servers from automatic installation (#643)

---
 lua/nvim-lsp-installer/data.lua | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'lua/nvim-lsp-installer/data.lua')

diff --git a/lua/nvim-lsp-installer/data.lua b/lua/nvim-lsp-installer/data.lua
index 264fda80..268d3aec 100644
--- a/lua/nvim-lsp-installer/data.lua
+++ b/lua/nvim-lsp-installer/data.lua
@@ -1,3 +1,5 @@
+-- TODO: rename this to functional.lua, long overdue
+
 local Data = {}
 
 ---@generic T : string
@@ -122,14 +124,16 @@ function Data.list_any(list, predicate)
     return false
 end
 
+function Data.identity(a)
+    return a
+end
+
 ---@generic T : fun(...)
 ---@param fn T
----@param cache_key_generator fun(...): string | nil
+---@param cache_key_generator (fun(...): string | nil)|nil
 ---@return T
 function Data.memoize(fn, cache_key_generator)
-    cache_key_generator = cache_key_generator or function(a)
-        return a
-    end
+    cache_key_generator = cache_key_generator or Data.identity
     local cache = {}
     return function(...)
         local key = cache_key_generator(...)
-- 
cgit v1.2.3-70-g09d2