diff --git a/crates/header-translator/src/id.rs b/crates/header-translator/src/id.rs
index f4bd7bbb3..cec7ef7e3 100644
--- a/crates/header-translator/src/id.rs
+++ b/crates/header-translator/src/id.rs
@@ -186,7 +186,11 @@ impl Location {
     }
 
     pub fn assert_file(&self, file_name: &str) {
-        assert_eq!(self.file_name(), Some(file_name));
+        assert_eq!(
+            self.file_name(),
+            Some(file_name),
+            "expected {self:?} to be in {file_name:?}"
+        );
     }
 }
 
diff --git a/crates/header-translator/src/rust_type.rs b/crates/header-translator/src/rust_type.rs
index 394fc27f0..f8e6b4e49 100644
--- a/crates/header-translator/src/rust_type.rs
+++ b/crates/header-translator/src/rust_type.rs
@@ -1725,7 +1725,8 @@ impl Ty {
         FormatterFn(move |f| match self {
             Self::Primitive(Primitive::NSInteger) => write!(f, "#[repr(isize)] // NSInteger"),
             Self::Primitive(Primitive::NSUInteger) => write!(f, "#[repr(usize)] // NSUInteger"),
-            _ => panic!("invalid closed enum repr"),
+            Self::Primitive(Primitive::U32) => write!(f, "#[repr(u32)]"),
+            _ => panic!("invalid closed enum repr: {self:?}"),
         })
     }
 
diff --git a/crates/header-translator/src/stmt.rs b/crates/header-translator/src/stmt.rs
index f0aa7b67e..6c6670f64 100644
--- a/crates/header-translator/src/stmt.rs
+++ b/crates/header-translator/src/stmt.rs
@@ -539,7 +539,12 @@ fn parse_fn_param_children(entity: &Entity<'_>, context: &Context<'_>) {
     immediate_children(entity, |entity, _span| match entity.get_kind() {
         EntityKind::UnexposedAttr => {
             if let Some(attr) = UnexposedAttr::parse(&entity, context) {
-                error!(?attr, "unknown attribute on fn param");
+                match attr {
+                    UnexposedAttr::NoEscape => {
+                        // TODO: Use this if mapping `fn + context ptr` to closure.
+                    }
+                    _ => error!(?attr, "unknown attribute on fn param"),
+                }
             }
         }
         EntityKind::ObjCClassRef