Circuit-break if Cursor::enum_type returns None

As discussed with @emilio. Part of #125.

1 files changed, 5 insertions, 2 deletions

diff --git a/libbindgen/src/ir/enum_ty.rs b/libbindgen/src/ir/enum_ty.rs
index 33a4fcfa..14ca4965 100644
--- a/libbindgen/src/ir/enum_ty.rs
+++ b/libbindgen/src/ir/enum_ty.rs
@@ -49,8 +49,11 @@ impl Enum {
         }
 
         let declaration = ty.declaration().canonical();
-        let et = &declaration.enum_type().expect("Expected an enum type");
-        let repr = Item::from_ty(et, None, None, ctx).ok();
+        let et = declaration.enum_type();
+        if et.is_none() {
+            return Err(ParseError::Continue);
+        }
+        let repr = Item::from_ty(&et.unwrap(), None, None, ctx).ok();
         let mut variants = vec![];
 
         let is_signed = match repr {