From f5f7456e7c7969ae8e6b6340fa63d17c83a39d14 Mon Sep 17 00:00:00 2001
From: Nick Allison <nickrallison1@gmail.com>
Date: Tue, 15 Apr 2025 10:38:17 -0600
Subject: [PATCH] Added Debug information to layout error

---
 bindgen/codegen/mod.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/bindgen/codegen/mod.rs b/bindgen/codegen/mod.rs
index 8da10ff051..682a29437a 100644
--- a/bindgen/codegen/mod.rs
+++ b/bindgen/codegen/mod.rs
@@ -2339,6 +2339,17 @@ impl CodeGenerator for CompInfo {
         } else if is_union && !forward_decl {
             // TODO(emilio): It'd be nice to unify this with the struct path
             // above somehow.
+            if layout.is_none() {
+                let location_option = item.location();
+                let error = match location_option {
+                    Some(location) => format!(
+                        "Unable to get layout information from: {location}"
+                    ),
+                    None => "Unable to get layout information or location"
+                        .to_string(),
+                };
+                panic!("{}", error);
+            }
             let layout = layout.expect("Unable to get layout information?");
             if struct_layout.requires_explicit_align(layout) {
                 explicit_align = Some(layout.align);