1 files changed, 24 insertions, 0 deletions
diff --git a/runtime/lua/vim/F.lua b/runtime/lua/vim/F.lua
new file mode 100644
index 0000000000..5887e978b9
--- /dev/null
+++ b/runtime/lua/vim/F.lua
@@ -0,0 +1,24 @@
+local F = {}
+
+--- Returns {a} if it is not nil, otherwise returns {b}.
+---
+--@param a
+--@param b
+function F.if_nil(a, b)
+  if a == nil then return b end
+  return a
+end
+
+-- Use in combination with pcall
+function F.ok_or_nil(status, ...)
+  if not status then return end
+  return ...
+end
+
+-- Nil pcall.
+function F.npcall(fn, ...)
+  return F.ok_or_nil(pcall(fn, ...))
+end
+
+
+return F