1ad218f3af
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
30 lines
411 B
Rust
30 lines
411 B
Rust
//@ known-bug: rust-lang/rust#126966
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mod assert {
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use std::mem::{Assume, TransmuteFrom};
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pub fn is_transmutable<Src, Dst>()
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where
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Dst: TransmuteFrom<Src>,
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{
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}
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}
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#[repr(u32)]
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enum Ox00 {
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V = 0x00,
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}
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#[repr(C, packed(2))]
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enum OxFF {
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V = 0xFF,
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}
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fn test() {
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union Superset {
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a: Ox00,
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b: OxFF,
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}
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assert::is_transmutable::<Superset, Subset>();
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}
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