bytemuck/tests/derive.rs

26 lines
441 B
Rust
Raw Normal View History

#![cfg(feature = "derive")]
#![allow(dead_code)]
use bytemuck::{ByteEq, ByteHash, Pod, TransparentWrapper, Zeroable};
#[derive(Copy, Clone, Pod, Zeroable, ByteEq, ByteHash)]
#[repr(C)]
struct Test {
a: u16,
b: u16,
}
#[derive(TransparentWrapper)]
#[repr(transparent)]
struct TransparentSingle {
a: u16,
}
#[derive(TransparentWrapper)]
#[repr(transparent)]
#[transparent(u16)]
struct TransparentWithZeroSized {
a: u16,
[Feature] extend `TransparentWrapper` conversion functions (#58) * update rustfmt.toml replace `merge_imports = true` (deprecated) with `imports_granularity = "Crate"` * run `cargo +nightly fmt` * rewrite docs and rename `Wrapped` to `Inner` rewriting some docs for conciseness rename `Wrapped` to `Inner`, because it's hard to visually differentiate between `Wrapper` and `Wrapped` * impl missing `TransparentWrapper::wrap_{}` fns Implement 3 new wrapping functions on `TransparentWrapper` providing new conversions. - `TransparentWrapper::wrap(s: Inner) -> Self` - `TransparentWrapper::wrap_slice(s: &[Inner]) -> &[Self]` - `TransparentWrapper::wrap_slice_mut(s: &mut [Inner]) -> &mut [Self]` * impl `TransparentWrapper::unwrap_{}` fns Implement counterparts to `TransparentWrapper::wrap_{}` functions providing reverse conversions. - `TransparentWrapper::unwrap(self) -> Inner` - `TransparentWrapper::unwrap_ref(&self) -> &Inner` - `TransparentWrapper::unwrap_mut(&mut self) -> &mut Inner` - `TransparentWrapper::unwrap_slice(s: &[Self]) -> &[Inner]` - `TransparentWrapper::unwrap_slice_mut(s: &mut [Self]) -> &mut [Inner]` * add `TransparentWrapper` UB test This test is only for MIRI to check all trait functions on `TransparentWrapper` if they cause any UB. The output of the functions is not checked. * small `TransparentWrapper` doc adjustments * change fn signature on `TransparentWrapper` Methods on `TransparentWrapper` trait are now associated functions. They now take `Self` instead of `self` as argument) - `TransparentWrapper::unwrap(s: Self)` - `TransparentWrapper::unwrap_ref(s: &Self)` - `TransparentWrapper::unwrap_mut(s: &mut Self)`
2021-03-29 05:11:13 +00:00
b: (),
}