rust/tests/ui/feature-gates/feature-gate-derive-from.rs

use std::from::From; //~ ERROR use of unstable library feature `derive_from

#[derive(From)] //~ ERROR use of unstable library feature `derive_from`
struct Foo(u32);

fn main() {}
Remove the `From` derive macro from prelude To avoid backwards compatibility problems. 2025-08-18 12:18:44 +02:00			use std::from::From; //~ ERROR use of unstable library feature `derive_from
Add feature gate test 2025-08-04 17:32:22 +02:00
			#[derive(From)] //~ ERROR use of unstable library feature `derive_from`
			`struct Foo(u32);`

			`fn main() {}`