From 89ab5902b2300bbb04281ebb7862a3ce53ab8f4b Mon Sep 17 00:00:00 2001
From: teoxoy <28601907+teoxoy@users.noreply.github.com>
Date: Wed, 20 Sep 2023 14:16:17 +0200
Subject: [PATCH] [msl-out] add min version check for `primitive_id`

---
 src/back/msl/mod.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/back/msl/mod.rs b/src/back/msl/mod.rs
index fc507b4ea4..15af43abd1 100644
--- a/src/back/msl/mod.rs
+++ b/src/back/msl/mod.rs
@@ -258,6 +258,11 @@ impl Options {
                     crate::BuiltIn::InstanceIndex if self.lang_version < (1, 2) => {
                         return Err(Error::UnsupportedAttribute("instance_id".to_string()));
                     }
+                    // macOS: Since Metal 2.2
+                    // iOS: Since Metal 2.3 (check depends on https://github.com/gfx-rs/naga/issues/2164)
+                    crate::BuiltIn::PrimitiveIndex if self.lang_version < (2, 2) => {
+                        return Err(Error::UnsupportedAttribute("primitive_id".to_string()));
+                    }
                     _ => {}
                 }