From c03b37697a1e117995ea76203e5c0ce7d6696c4e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Wed, 9 Nov 2022 13:33:19 +0100
Subject: [PATCH] ir: Don't crash with built-in unexposed types from libclang.

This fixes #2325.

The issue is that `__bf16` is not exposed at all by libclang, which
causes us to crash. It's a bit of a shame libclang doesn't expose it but
there's no rust equivalent I think, so this should be ok for now.

Unfortunately no test because the header crashes older clang versions.
---
 bindgen/ir/ty.rs  | 3 +--
 bindgen/ir/var.rs | 8 ++++----
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/bindgen/ir/ty.rs b/bindgen/ir/ty.rs
index 9edc43d419..c9403f66c9 100644
--- a/bindgen/ir/ty.rs
+++ b/bindgen/ir/ty.rs
@@ -1145,8 +1145,7 @@ impl Type {
                         location,
                         None,
                         ctx,
-                    )
-                    .expect("Not able to resolve vector element?");
+                    )?;
                     TypeKind::Vector(inner, ty.num_elements().unwrap())
                 }
                 CXType_ConstantArray => {
diff --git a/bindgen/ir/var.rs b/bindgen/ir/var.rs
index 198206b9f1..c86742ff69 100644
--- a/bindgen/ir/var.rs
+++ b/bindgen/ir/var.rs
@@ -293,11 +293,11 @@ impl ClangSubItemParser for Var {
                 let ty = match Item::from_ty(&ty, cursor, None, ctx) {
                     Ok(ty) => ty,
                     Err(e) => {
-                        assert_eq!(
-                            ty.kind(),
-                            CXType_Auto,
+                        assert!(
+                            matches!(ty.kind(), CXType_Auto | CXType_Unexposed),
                             "Couldn't resolve constant type, and it \
-                             wasn't an nondeductible auto type!"
+                             wasn't an nondeductible auto type or unexposed \
+                             type!"
                         );
                         return Err(e);
                     }