os-rust/tests/crashes/124207.rs
Jack Wrenn 1ad218f3af safe transmute: Rename BikeshedIntrinsicFrom to TransmuteFrom
As our implementation of MCP411 nears completion and we begin to
solicit testing, it's no longer reasonable to expect testers to
type or remember `BikeshedIntrinsicFrom`. The name degrades the
ease-of-reading of documentation, and the overall experience of
using compiler safe transmute.

Tentatively, we'll instead adopt `TransmuteFrom`.

This name seems to be the one most likely to be stabilized, after
discussion on Zulip [1]. We may want to revisit the ordering of
`Src` and `Dst` before stabilization, at which point we'd likely
consider `TransmuteInto` or `Transmute`.

[1] https://rust-lang.zulipchat.com/#narrow/stream/216762-project-safe-transmute/topic/What.20should.20.60BikeshedIntrinsicFrom.60.20be.20named.3F
2024-08-27 14:05:54 +00:00

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Rust

//@ known-bug: #124207
#![feature(transmutability)]
#![feature(type_alias_impl_trait)]
trait OpaqueTrait {}
type OpaqueType = impl OpaqueTrait;
trait AnotherTrait {}
impl<T: std::mem::TransmuteFrom<(), ()>> AnotherTrait for T {}
impl AnotherTrait for OpaqueType {}
pub fn main() {}