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Diffstat (limited to '')
-rw-r--r-- | third_party/rust/zerocopy-derive/tests/enum_unaligned.rs | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/third_party/rust/zerocopy-derive/tests/enum_unaligned.rs b/third_party/rust/zerocopy-derive/tests/enum_unaligned.rs new file mode 100644 index 0000000000..152ce276b8 --- /dev/null +++ b/third_party/rust/zerocopy-derive/tests/enum_unaligned.rs @@ -0,0 +1,47 @@ +// Copyright 2019 The Fuchsia Authors +// +// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0 +// <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT +// license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option. +// This file may not be copied, modified, or distributed except according to +// those terms. + +#![allow(warnings)] + +use {static_assertions::assert_impl_all, zerocopy::Unaligned}; + +// An enum is `Unaligned` if: +// - No `repr(align(N > 1))` +// - `repr(u8)` or `repr(i8)` + +#[derive(Unaligned)] +#[repr(u8)] +enum Foo { + A, +} + +assert_impl_all!(Foo: Unaligned); + +#[derive(Unaligned)] +#[repr(i8)] +enum Bar { + A, +} + +assert_impl_all!(Bar: Unaligned); + +#[derive(Unaligned)] +#[repr(u8, align(1))] +enum Baz { + A, +} + +assert_impl_all!(Baz: Unaligned); + +#[derive(Unaligned)] +#[repr(i8, align(1))] +enum Blah { + B, +} + +assert_impl_all!(Blah: Unaligned); |