absence_of_deprecated_warning.rs

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// Copyright 2024 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.

//! See: https://github.com/google/zerocopy/issues/553

//! zerocopy must still allow derives of deprecated types.

//! This test has a hand-written impl of a deprecated type, and should result in a compilation

//! error. If zerocopy does not tack an allow(deprecated) annotation onto its impls, then this

//! test will fail because more than one compile error will be generated.

#![deny(deprecated)]

extern crate zerocopy;

use zerocopy::IntoBytes;

#[deprecated = "Do not use"]

#[derive(IntoBytes)]

#[repr(C)]

struct OldHeader {

    field_a: usize,

    collection: [u8; 8],

trait T {}

// Intentionally trigger a deprecation error

impl T for OldHeader {}

fn main() {}