rust/tests/ui/transmutability/malformed-program-gracefulness/feature-missing.rs

// The trait must not be available if its feature flag is absent.

#![crate_type = "lib"]

use std::mem::TransmuteFrom;
//~^ ERROR use of unstable library feature `transmutability` [E0658]

use std::mem::Assume;
//~^ ERROR use of unstable library feature `transmutability` [E0658]
safe transmute: test to ensure that trait is correctly feature-gated ref: https://github.com/rust-lang/rust/pull/92268#discussion_r925265476 2022-07-21 17:43:25 +00:00			`// The trait must not be available if its feature flag is absent.`

			`#![crate_type = "lib"]`

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			`use std::mem::TransmuteFrom;`
use backticks instead of single quotes when reporting "use of unstable library feature" This is consistent with all other diagnostics I could find containing features and enables the use of `DiagSymbolList` for generalizing diagnostics for unstable library features to multiple features. 2024-11-02 16:10:24 -07:00			//~^ ERROR use of unstable library feature `transmutability` [E0658]
safe transmute: reference tracking issue ref: https://github.com/rust-lang/rust/pull/92268#discussion_r925266769 2022-07-21 18:18:36 +00:00
			`use std::mem::Assume;`
use backticks instead of single quotes when reporting "use of unstable library feature" This is consistent with all other diagnostics I could find containing features and enables the use of `DiagSymbolList` for generalizing diagnostics for unstable library features to multiple features. 2024-11-02 16:10:24 -07:00			//~^ ERROR use of unstable library feature `transmutability` [E0658]