diff options
| author | Emilio Cobos Álvarez <emilio@crisal.io> | 2021-07-26 00:22:05 +0200 |
|---|---|---|
| committer | Emilio Cobos Álvarez <emilio@crisal.io> | 2021-07-26 00:22:33 +0200 |
| commit | 271eeb0782d34942267ceabcf5f1cf118f0f5842 (patch) | |
| tree | 3bfb13b5ce532e58433899d21de650db337fd60a /src/codegen/mod.rs | |
| parent | 67140077f65bb5af6eae1b257c91c9f379e56bc2 (diff) | |
codegen: Don't check large_arrays to generate bitfield ctors because they use the Default trait.
Fixes #2082
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() { |