Omit accessor functions for large bitfields

Author: Tiwalun

src/codegen/mod.rs

@@ -924,8 +924,7 @@ fn flush_bitfields<'a, I>(ctx: &BindgenContext,
             4 => quote_ty!(ctx.ext_cx(), u32),
             2 => quote_ty!(ctx.ext_cx(), u16),
             1 => quote_ty!(ctx.ext_cx(), u8),
-            _ => panic!("physical field containing bitfields should be sized \
-                         8, 4, 2, or 1 bytes")
+            _ => return field
         };
         let bitfield_int_ty = BlobTyBuilder::new(bitfield_layout).build();
 

tests/expectations/tests/bitfield-large.rs

@@ -0,0 +1,32 @@
+/* automatically generated by rust-bindgen */
+
+
+#![allow(non_snake_case)]
+
+
+#[repr(C)]
+#[derive(Debug, Default, Copy)]
+pub struct HasBigBitfield {
+    pub _bitfield_1: [u8; 16usize],
+}
+#[test]
+fn bindgen_test_layout_HasBigBitfield() {
+    assert_eq!(::std::mem::size_of::<HasBigBitfield>() , 16usize , concat ! (
+               "Size of: " , stringify ! ( HasBigBitfield ) ));
+}
+impl Clone for HasBigBitfield {
+    fn clone(&self) -> Self { *self }
+}
+#[repr(C)]
+#[derive(Debug, Default, Copy)]
+pub struct HasTwoBigBitfields {
+    pub _bitfield_1: [u8; 16usize],
+}
+#[test]
+fn bindgen_test_layout_HasTwoBigBitfields() {
+    assert_eq!(::std::mem::size_of::<HasTwoBigBitfields>() , 16usize , concat
+               ! ( "Size of: " , stringify ! ( HasTwoBigBitfields ) ));
+}
+impl Clone for HasTwoBigBitfields {
+    fn clone(&self) -> Self { *self }
+}

tests/headers/bitfield-large.hpp

@@ -0,0 +1,9 @@
+struct HasBigBitfield {
+  __int128 x : 128;
+};
+
+
+struct HasTwoBigBitfields {
+  __int128 x : 80;
+  __int128 y : 48;
+};