From f6c33420ea6a9cf6ccdf3fdc0e912720fbd83d31 Mon Sep 17 00:00:00 2001
From: Emile Clark-Boman <emile@agribit.com.au>
Date: Thu, 15 Jan 2026 13:34:02 +1000
Subject: [PATCH] add trivial.warnIf

---
 nib/std/trivial.nix | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/nib/std/trivial.nix b/nib/std/trivial.nix
index cf26fb3..cb50a53 100644
--- a/nib/std/trivial.nix
+++ b/nib/std/trivial.nix
@@ -1,4 +1,9 @@
-{...}: {
+{...}: let
+  inherit
+    (builtins)
+    warn
+    ;
+in {
   id = x: x;
 
   min = x: y:
@@ -10,4 +15,9 @@
     if x > y
     then x
     else y;
+
+  warnIf = cond: msg:
+    if cond
+    then warn msg
+    else x: x;
 }