1 // Copyright 2019 The Fuchsia Authors 2 // 3 // Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0 4 // <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT 5 // license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option. 6 // This file may not be copied, modified, or distributed except according to 7 // those terms. 8 9 use zerocopy::{AsBytes, FromBytes, FromZeroes, KnownLayout, Unaligned}; 10 11 // These derives do not result in E0446 as of Rust 1.59.0, because of 12 // https://github.com/rust-lang/rust/pull/90586. 13 // 14 // This change eliminates one of the major downsides of emitting `where` 15 // bounds for field types (i.e., the emission of E0446 for private field 16 // types). 17 18 #[derive(KnownLayout, AsBytes, FromZeroes, FromBytes, Unaligned)] 19 #[repr(C)] 20 pub struct Public(Private); 21 22 #[derive(KnownLayout, AsBytes, FromZeroes, FromBytes, Unaligned)] 23 #[repr(C)] 24 struct Private(()); 25