From bcd9a31bb8f61d6355f4c9ee4a6e777087889b09 Mon Sep 17 00:00:00 2001
From: Bruno BELANYI <bruno@belanyi.fr>
Date: Fri, 12 Jul 2024 20:34:51 +0100
Subject: [PATCH] home: vim: lua: utils: add 'partial'

Love me some functional goodness.

This was taken from [1].

[1]: https://reddit.com/r/lua/comments/fh2go5
---
 modules/home/vim/lua/ambroisie/utils.lua | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/modules/home/vim/lua/ambroisie/utils.lua b/modules/home/vim/lua/ambroisie/utils.lua
index 3d2dd3b..c9e9292 100644
--- a/modules/home/vim/lua/ambroisie/utils.lua
+++ b/modules/home/vim/lua/ambroisie/utils.lua
@@ -48,4 +48,22 @@ M.list_lsp_clients = function(bufnr)
     return names
 end
 
+--- partially apply a function with given arguments
+M.partial = function(f, ...)
+    local a = { ... }
+    local a_len = select("#", ...)
+
+    return function(...)
+        local tmp = { ... }
+        local tmp_len = select("#", ...)
+
+        -- Merge arg lists
+        for i = 1, tmp_len do
+            a[a_len + i] = tmp[i]
+        end
+
+        return f(unpack(a, 1, a_len + tmp_len))
+    end
+end
+
 return M