From dd6f1736b78c83593544cf9959750973f2efc93a Mon Sep 17 00:00:00 2001
From: Eman Resu <78693624+quatquatt@users.noreply.github.com>
Date: Tue, 26 May 2026 13:31:54 -0400
Subject: [PATCH] lib.gvariant: remove throwIf usage

throwIf sends our error message through a function call, even if the
error condition doesn't trigger. This requires a lot of thunk allocation
that can be easily avoided.
---
 lib/gvariant.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/gvariant.nix b/lib/gvariant.nix
index f64808347ee8..3749e4c82d3b 100644
--- a/lib/gvariant.nix
+++ b/lib/gvariant.nix
@@ -191,7 +191,9 @@ rec {
   mkArray =
     elems:
     let
-      vs = map mkValue (lib.throwIf (elems == [ ]) "Please create empty array with mkEmptyArray." elems);
+      vs = map mkValue (
+        if elems == [ ] then throw "Please create empty array with mkEmptyArray." else elems
+      );
       elemType = lib.throwIfNot (lib.all (t: (head vs).type == t) (
         map (v: v.type) vs
       )) "Elements in a list should have same type." (head vs).type;