From 544731f221a20aa453dc26474f82cf3b3552c05b Mon Sep 17 00:00:00 2001
From: Erich Gubler <erichdongubler@gmail.com>
Date: Fri, 8 Nov 2024 16:32:38 -0500
Subject: [PATCH] fix(const_eval): don't panic when `vecN` ctor.'s arg. count
 is < N

---
 naga/src/proc/constant_evaluator.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/naga/src/proc/constant_evaluator.rs b/naga/src/proc/constant_evaluator.rs
index 5fdf4815164..c12983c0c43 100644
--- a/naga/src/proc/constant_evaluator.rs
+++ b/naga/src/proc/constant_evaluator.rs
@@ -137,8 +137,8 @@ macro_rules! gen_component_wise_extractor {
                             for idx in 0..(size as u8).into() {
                                 let group = component_groups
                                     .iter()
-                                    .map(|cs| cs[idx])
-                                    .collect::<ArrayVec<_, N>>()
+                                    .map(|cs| cs.get(idx).cloned().ok_or(err.clone()))
+                                    .collect::<Result<ArrayVec<_, N>, _>>()?
                                     .into_inner()
                                     .unwrap();
                                 new_components.push($ident(