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rust/tests/ui/impl-restriction/trait-alias-cannot-be-impl-restricted.rs
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CoCo-Japan-pan 0e6efe57d7 Update UI tests
2026-04-19 16:38:04 +09:00

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Rust

#![feature(impl_restriction, auto_traits, const_trait_impl, trait_alias)]
#![expect(incomplete_features)]
impl(crate) trait Alias = Copy; //~ ERROR trait aliases cannot be `impl`-restricted
impl(in crate) auto trait AutoAlias = Copy; //~ ERROR trait aliases cannot be `impl`-restricted
//~^ ERROR trait aliases cannot be `auto`
impl(self) unsafe trait UnsafeAlias = Copy; //~ ERROR trait aliases cannot be `impl`-restricted
//~^ ERROR trait aliases cannot be `unsafe`
impl(in self) const trait ConstAlias = Copy; //~ ERROR trait aliases cannot be `impl`-restricted
mod foo {
impl(super) trait InnerAlias = Copy; //~ ERROR trait aliases cannot be `impl`-restricted
impl(in crate::foo) const unsafe trait InnerConstUnsafeAlias = Copy; //~ ERROR trait aliases cannot be `impl`-restricted
//~^ ERROR trait aliases cannot be `unsafe`
impl(in crate::foo) unsafe auto trait InnerUnsafeAutoAlias = Copy; //~ ERROR trait aliases cannot be `impl`-restricted
//~^ ERROR trait aliases cannot be `auto`
//~^^ ERROR trait aliases cannot be `unsafe`
}
fn main() {}