diff options
Diffstat (limited to 'src/codegen/mod.rs')
| -rw-r--r-- | src/codegen/mod.rs | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/codegen/mod.rs b/src/codegen/mod.rs index d49d3248..0f3337ac 100644 --- a/src/codegen/mod.rs +++ b/src/codegen/mod.rs @@ -1502,9 +1502,11 @@ impl<'a> FieldCodegen<'a> for BitfieldUnit { let mut ctor_impl = quote! {}; // We cannot generate any constructor if the underlying storage can't - // implement AsRef<[u8]> / AsMut<[u8]> / etc. - let mut generate_ctor = layout.size <= RUST_DERIVE_IN_ARRAY_LIMIT || - ctx.options().rust_features().larger_arrays; + // implement AsRef<[u8]> / AsMut<[u8]> / etc, or can't derive Default. + // + // We don't check `larger_arrays` here because Default does still have + // the 32 items limitation. + let mut generate_ctor = layout.size <= RUST_DERIVE_IN_ARRAY_LIMIT; let mut access_spec = !fields_should_be_private; for bf in self.bitfields() { |